JPH09123169A - Thermoplastic resin synthetic material with plastic bottle as material, manufacture thereof, thermoplastic resin molding using the material and manufacture thereof - Google Patents
Thermoplastic resin synthetic material with plastic bottle as material, manufacture thereof, thermoplastic resin molding using the material and manufacture thereofInfo
- Publication number
- JPH09123169A JPH09123169A JP28888195A JP28888195A JPH09123169A JP H09123169 A JPH09123169 A JP H09123169A JP 28888195 A JP28888195 A JP 28888195A JP 28888195 A JP28888195 A JP 28888195A JP H09123169 A JPH09123169 A JP H09123169A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- crushed
- extruded
- molding
- stirring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、廃棄されたポリエ
チレンテレフタレート（以下「ＰＥＴ」という）の成形
品を回収し、該回収されたＰＥＴの成形品を原料とした
熱可塑性樹脂合成体及びその製造方法、並びに前記熱可
塑性樹脂合成体を原料として得られる熱可塑性樹脂成形
品及びその製造方法に関し、より詳細には、近年清涼飲
料、シャンプー、洗剤、しょう油等の製品の包装用容器
として多量に使用され、廃棄されているＰＥＴ製の包装
用容器（以下「ペットボトル」という）を回収し、該回
収されたペットボトルを破砕して得られた破砕物を骨材
とする熱可塑性樹脂合成体及びその製造方法、並びに前
記熱可塑性樹脂合成体を原料とした熱可塑性樹脂成形品
及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention collects discarded polyethylene terephthalate (hereinafter referred to as "PET") molded articles, and uses the recovered PET molded articles as a raw material, and a thermoplastic resin composite and production thereof. The present invention relates to a method, and a thermoplastic resin molded article obtained by using the thermoplastic resin composite material as a raw material, and a method for producing the same, more specifically, in recent years, it has been used in large amounts as a container for packaging soft drinks, shampoos, detergents, soy sauce and other products. And a discarded PET packaging container (hereinafter referred to as "PET bottle") is collected, and the crushed product obtained by crushing the collected PET bottle is used as an aggregate. The present invention relates to a method for producing the same, a thermoplastic resin molded article using the thermoplastic resin composite as a raw material, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来よりＰＥＴを原料としたペツトボト
ルは清涼飲料、シャンプー、洗剤、目薬、サラダ油、食
酢、しょう油、ソース、ドレッシング、ミリン、酒、ビ
ール等、各種製品の包装用容器として使用されており、
特に近年の延伸吹込技術の発達により、比較的安価かつ
高性能なペットボトルの製造が可能となったことから、
炭酸飲料等の包装用容器として多量に使用され、かつ、
廃棄されている。BACKGROUND ART PET bottles made of PET have been used as packaging containers for various products such as soft drinks, shampoos, detergents, eye drops, salad oil, vinegar, soy sauce, sauces, dressings, mirin, liquor and beer. Cage,
In particular, due to the development of drawing and blowing technology in recent years, it has become possible to manufacture relatively inexpensive and high-performance PET bottles,
Used in large quantities as containers for packaging carbonated drinks, and
Has been discarded.
【０００３】このペットボトルの廃棄量は、月間10,000
t とも言われ、このように多量に廃棄されたペットボト
ルの再利用が社会的に要請されている。The waste amount of this plastic bottle is 10,000 per month.
It is also called t, and there is a social demand for the reuse of PET bottles that have been discarded in such a large amount.
【０００４】前記社会的要請に応えるべく、本発明の発
明者等は、回収されたペットボトルを破砕して、この破
砕されたペットボトルを原料として押出成形により建築
材等として利用し得る板状の成形板を押出成形により製
造することを試みた。In order to meet the social demand, the inventors of the present invention crush the collected PET bottles, and use the crushed PET bottles as a raw material by extrusion molding to obtain a plate-like material that can be used as a building material or the like. An attempt was made to manufacture the molded plate of No. 1 by extrusion molding.
【０００５】しかし、回収されたペットボトルのみを原
料として押出成形により製造された成形品は、成形後、
冷却により収縮し、この収縮により変形や亀裂の発生等
が生じると共に、成形された成形品自体も衝撃に弱く、
良好な成形品を得ることができなかった。しかも前記変
形や亀裂の発生、成形品の脆さは、押出温度の変更や成
形ダイの温度の調整等の加工条件によっては解消し得な
いことが判明した。However, a molded article manufactured by extrusion molding using only the collected PET bottle as a raw material is
It shrinks due to cooling, deformation and cracking occur due to this shrinkage, and the molded product itself is also weak against impact,
A good molded product could not be obtained. Moreover, it has been found that the above-mentioned deformation and cracking and brittleness of the molded product cannot be eliminated depending on the processing conditions such as changing the extrusion temperature and adjusting the temperature of the molding die.
【０００６】また、ＰＥＴやその他の熱可塑性樹脂成形
材を原料として成形された熱可塑性樹脂成形品は、一般
に冷却により収縮し寸法安定性が悪いと共に、表面のサ
ンディングができず、塗装、他の木材等との接着が困難
であった。[0006] Further, a thermoplastic resin molded article formed by using PET or other thermoplastic resin molding material as a raw material generally shrinks due to cooling and has poor dimensional stability, and the surface cannot be sanded so that painting or other It was difficult to adhere to wood.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記思考錯
誤の結果、ＰＥＴの溶融温度が他の熱可塑性樹脂成形材
に比較して高い点に着目して成されたものであり、本発
明の第１の目的は、破砕されたペットボトルをＰＥＴに
比較して溶融温度の低いポリエチレン（以下「ＰＥ」と
いう）、ポリプロピレン（以下「ＰＰ」という）、ポリ
塩化ビニル（以下「ＰＶＣ」という）中に溶融させるこ
となく分散させ、ペットボトルの破砕物を他の熱可塑性
樹脂成形材の骨材として使用することで、廃棄されたペ
ットボトルの有効な再生利用を図ると共に、これらの原
料を射出又は押出成形により成形し、強度、加工性等に
優れた安価な熱可塑性樹脂成形品を提供することを目的
とする。As a result of the above-mentioned thought and error, the present invention was made by paying attention to the fact that the melting temperature of PET is higher than that of other thermoplastic resin molding materials. The first purpose of is that polyethylene (hereinafter referred to as "PE"), polypropylene (hereinafter referred to as "PP"), polyvinyl chloride (hereinafter referred to as "PVC") whose melting temperature is lower than PET for crushed PET bottles. Disperse the PET bottles without melting them and use the crushed PET bottles as the aggregate of other thermoplastic resin molding materials, aiming for effective recycling of discarded PET bottles and injection of these raw materials. Alternatively, it is an object of the present invention to provide an inexpensive thermoplastic resin molded product which is molded by extrusion molding and is excellent in strength, workability and the like.
【０００８】また、本発明の他の目的は、前記の原料に
加えて木粉及び／又はポリウレタン発泡体等熱硬化性樹
脂発泡体を混入することにより、射出又は押出成形後の
成形品の冷却収縮を防止することにより寸法安定性を向
上させ、また、表面サンディングが可能で接着性、塗装
性に優れた熱可塑性樹脂成形品を提供することにある。Another object of the present invention is to cool a molded article after injection or extrusion molding by mixing wood powder and / or a thermosetting resin foam such as polyurethane foam in addition to the above raw materials. It is an object of the present invention to provide a thermoplastic resin molded article which has improved dimensional stability by preventing shrinkage, is capable of surface sanding, and has excellent adhesiveness and paintability.
【０００９】本発明のさらに他の目的は、木粉の混入に
より熱可塑性樹脂成形品に木材の風合いを醸しだすこと
ができ、その結果、本発明の方法により製造された熱可
塑性樹脂成形品を天然の木材に代用して使用すること
で、従来困難とされていた木材とプラスチック製品の接
着を実質上可能とすることにある。Still another object of the present invention is to produce wood texture in a thermoplastic resin molded product by mixing wood powder, and as a result, to obtain a thermoplastic resin molded product produced by the method of the present invention. By substituting natural wood for use, it is possible to substantially bond wood and plastic products, which was conventionally difficult.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、本発明のペットボトルを原料とした熱可塑性樹脂合
成体及びその製造方法は、１mm×１mm以下に破砕され、
撹拌衝撃翼による撹拌の際の摩擦熱により乾燥されたペ
ットボトルの破砕物３０〜６０wt％と、ポリエチレン及
び／又はポリプロピレン、又はポリ塩化ビニル４０〜７
０wt％を共に撹拌衝撃翼により混合し、前記混合により
発生せしめた１９０〜２２０℃の摩擦熱によりゲル化混
練し、前記ゲル化混練した混練材料を冷却して粒径１５
mm以下のペレット状に整粒してなることを特徴とする。In order to achieve the above object, a thermoplastic resin composite body using a PET bottle of the present invention as a raw material and a method for producing the same are crushed to 1 mm × 1 mm or less,
30 to 60 wt% of crushed PET bottle dried by frictional heat at the time of stirring with a stirring impact blade, and polyethylene and / or polypropylene, or polyvinyl chloride 40 to 7
0 wt% was mixed together with a stirring impact blade, and gelled and kneaded by frictional heat of 190 to 220 ° C. generated by the mixing, and the gelled and kneaded material was cooled to have a particle size of 15
It is characterized in that it is sized into pellets of mm or less.
【００１１】また、本発明の別の熱可塑性樹脂合成体
は、５０μ〜２００μの木粉及び／又は粒径０．２mm〜
１．０mmに破砕されたポリウレタン発泡体等熱硬化性樹
脂発泡体を撹拌衝撃翼により撹拌し、前記撹拌の際の摩
擦熱により前記木粉及び／又は熱硬化性樹脂発泡体を乾
燥後、前記木粉及び／又は熱硬化性樹脂発泡体に、１mm
×１mm以下に破砕されたペットボトルの破砕物を投入し
て撹拌衝撃翼により撹拌して前記撹拌の際の摩擦熱によ
りペットボトルの破砕物を乾燥し、前記ペットボトルの
破砕物３０〜５０wt％、木粉及び／又は熱硬化性樹脂発
泡体それぞれ５〜２５wt％に対してポリエチレン及び／
又はポリプロピレン、又はポリ塩化ビニル３５〜５５wt
％を投入して撹拌衝撃翼により混合し、前記混合により
発生せしめた１９０〜２２０℃の摩擦熱によりゲル化混
練すると共に、前記ゲル化混練した混練材料を冷却して
粒径１５mm以下のペレットに整粒して成る。Another thermoplastic resin composite of the present invention is a wood powder having a particle size of 50 to 200 μm and / or a particle size of 0.2 mm to.
A thermosetting resin foam such as a polyurethane foam crushed to 1.0 mm is stirred by a stirring impact blade, and the wood powder and / or the thermosetting resin foam is dried by frictional heat during the stirring, 1 mm on wood powder and / or thermosetting resin foam
A crushed PET bottle crushed to a size of 1 mm or less is put into the crushed PET bottle, and the crushed PET bottle crushed product is dried by the frictional heat at the time of stirring and is agitated by a stirring impact blade. , Wood powder and / or thermosetting resin foam 5 to 25 wt% each of polyethylene and / or
Or polypropylene or polyvinyl chloride 35-55wt
%, And mixed by a stirring impact blade, and gelled and kneaded by frictional heat of 190 to 220 ° C. generated by the mixing, and the gelled and kneaded material is cooled to form pellets having a particle diameter of 15 mm or less. It is made by sizing.
【００１２】そして、好適には前記熱可塑性樹脂合成体
中に混入される木粉は、含有水分量０．１〜０．３wt％
迄乾燥する。[0012] Preferably, the wood powder mixed in the thermoplastic resin composite has a water content of 0.1 to 0.3 wt%.
Dry until dry.
【００１３】また、前記熱可塑性樹脂合成体を用いた熱
可塑性成形品及びその製造方法は、前記熱可塑性樹脂合
成体を１８０℃〜２３５℃で加熱・練成した押出し生地
を成形ダイへ押出し、前記押出し生地を成形ダイ内で徐
冷・硬化したことを特徴とする。Further, in a thermoplastic molded article using the thermoplastic resin composite and a method for producing the same, an extruded dough obtained by heating and kneading the thermoplastic resin composite at 180 ° C. to 235 ° C. is extruded into a molding die, It is characterized in that the extruded material is gradually cooled and cured in a molding die.
【００１４】好適には、前記熱可塑性樹脂成形品の製造
に使用する成形ダイ１０は、内壁面にフッ素樹脂のシー
ト２４を貼設又はフッ素樹脂をコーティングした成形室
２２を備え、前記成形室２２は２３０〜２４５℃に加熱
された溶融部と、冷却手段により冷却された徐冷部から
成り、成形ダイ内に押し出された押出し生地を前記溶融
部を通過後徐冷部で冷却・硬化し、且つ、この押出し生
地に押出し力に抗する抑制力を加えて押出し生地の密度
を高くする。Preferably, the molding die 10 used for manufacturing the thermoplastic resin molded article has a molding chamber 22 in which a fluororesin sheet 24 is attached or coated with the fluororesin on the inner wall surface thereof. Is composed of a melting part heated to 230 to 245 ° C. and a slow cooling part cooled by a cooling means, and the extruded dough extruded into the molding die is cooled and cured in the slow cooling part after passing through the melting part. At the same time, the density of the extruded dough is increased by applying a restraining force against the extruded dough to the extruded dough.
【００１５】[0015]
【発明の実施の形態】回収されたペットボトルは、キャ
ップ、その他の金属部品が取り除かれた後、これを後述
の破砕手段、粗砕手段を介して一辺１mm程度の大きさの
方形又は不定型な小片に破砕する。BEST MODE FOR CARRYING OUT THE INVENTION The collected PET bottles, after the caps and other metal parts have been removed, are rectified or crushed by a crushing means or a crushing means, which will be described later, into a square or irregular shape having a size of about 1 mm per side. Crush into small pieces.
【００１６】前記ペットボトルの破砕物は、その後、後
述の流動混合混練手段に投入され、回転数９００rpm で
５〜８分間撹拌され、該撹拌の際に発生せしめた１４０
〜１９０℃の摩擦熱により乾燥されると共に、より微細
に粉砕される。The crushed material of the PET bottle was then put into the fluid mixing and kneading means described later and stirred at a rotation speed of 900 rpm for 5 to 8 minutes, and 140 was generated during the stirring.
It is dried by frictional heat of ˜190 ° C. and pulverized more finely.
【００１７】その後、前記ペットボトルの破砕物が投入
されている流動混合混練手段内に、バージンの又は自動
車の内装品、電気製品のキャビネットその他の廃棄され
た熱可塑性樹脂成形品より回収されたＰＰ又はＰＥ、Ｐ
ＰとＰＥとを、単独あるいは、これらの内数種を、例え
ば、１：１の割合で配合したものを、前記ペットボトル
の破砕物３０〜６０wt％、好適には、４０〜５０wt％に
対して４０〜７０wt％、好適には、５０〜６０wt％投入
し、ペットボトルの破砕物と共に回転数９００rpmの撹
拌衝撃翼で２０分間ゲル化混練する。このゲル化混練の
際に発生する１９０℃〜２２０℃の摩擦熱により、ＰＰ
及び／又はＰＥは溶融するが、ペットボトルの破砕物を
主に構成するＰＥＴの融点は約２５６℃と前記ＰＰ，Ｐ
Ｅに比較して高いので、ＰＥＴは溶融せずに前記混合原
料中に原形を留めたまま残留し、従ってＰＥＴは、その
周囲を溶融したＰＰ及び／又はＰＥにより包まれる。Then, in the fluidized mixing and kneading means in which the crushed material of the PET bottle is put, PP recovered from virgin or automobile interior parts, electric appliance cabinets and other discarded thermoplastic resin molded products. Or PE, P
P and PE are used alone or in a mixture of several kinds of these, for example, in a ratio of 1: 1 with respect to the crushed PET bottle of 30 to 60% by weight, preferably 40 to 50% by weight. 40 to 70 wt%, preferably 50 to 60 wt%, and gelled and kneaded with the crushed PET bottle for 20 minutes with a stirring impact blade at a rotation speed of 900 rpm. Due to the frictional heat of 190 ° C to 220 ° C generated during this gelation kneading, PP
And / or PE is melted, but the melting point of PET, which mainly constitutes the crushed material of PET bottles, is about 256 ° C.
Since it is higher than E, PET does not melt and remains intact in the mixed raw material, so that PET is wrapped around it by the melted PP and / or PE.
【００１８】なお、得られる熱可塑性樹脂成形品を比較
的軟質なものとする場合には、前記ＰＰ及び／又はＰＥ
に代えてＰＶＣを混入することもできる。When the thermoplastic resin molded product to be obtained is made relatively soft, PP and / or PE are used.
Alternatively, PVC may be mixed.
【００１９】ペットボトルの破砕物、ＰＰ及び／又はＰ
Ｅ、又はＰＶＣに加え、木粉及び／又はポリウレタン発
泡体等熱硬化性樹脂発泡体を混入することもでき、木粉
及び／又は熱硬化性樹脂発泡体の混入により、成形後の
熱可塑性樹脂成形品の冷却収縮を防止することができる
と共に熱可塑性樹脂成形品の表面サンディングが可能と
なり、熱可塑性樹脂成形品の接着性、塗装性を向上させ
ることができる。特に木粉の混入は、熱可塑性樹脂成形
品に天然の木材の風合を与えることができる。このよう
に、木粉及び／又は熱硬化性樹脂発泡体を混入する場合
には、木粉及び／又は熱硬化性樹脂発泡体を後述の流動
混合混練手段中に投入し、木粉にあっては回転数９００
rpmの撹拌衝撃翼により約８分間撹拌し、この際に発生
せしめた約１４０℃の摩擦熱で含有水分量０．１〜０．
３wt％に乾燥させ、ポリウレタンの場合には、回転数９
００rpmの撹拌衝撃翼により発生せしめた摩擦熱で約６
分間乾燥させた後、この木粉及び／又はポリウレタンに
ペットボトルの破砕物を投入してさらに撹拌衝撃翼によ
り撹拌してペットボトルの破砕物を良く乾燥させた後、
ＰＰ及び／又はＰＥ、又はＰＶＣを加えてゲル化混練す
る。なお、この時に混合される各原料の重量比は、ペッ
トボトルの破砕物３０〜５０wt％、好適には、３５〜４
０wt％，ＰＰ及び／又はＰＥ、又はＰＶＣ３５〜５５wt
％、好適には、３５〜４５wt％、ポリウレタン発泡体及
び／又は木粉がそれぞれ５〜２５wt％、好適には、１０
〜２０wt％である。Crushed PET bottles, PP and / or P
In addition to E or PVC, a wood powder and / or a thermosetting resin foam such as a polyurethane foam can be mixed. By mixing the wood powder and / or the thermosetting resin foam, a thermoplastic resin after molding The cooling shrinkage of the molded product can be prevented, and the surface sanding of the thermoplastic resin molded product becomes possible, so that the adhesiveness and paintability of the thermoplastic resin molded product can be improved. In particular, the incorporation of wood powder can give the thermoplastic resin molded article a natural wood feel. As described above, when the wood powder and / or the thermosetting resin foam is mixed, the wood powder and / or the thermosetting resin foam is put into the fluid mixing and kneading means described below to remove the wood powder and / or the thermosetting resin foam. Is the number of revolutions 900
Stirring is performed for about 8 minutes by a stirring impeller of rpm, and the water content is 0.1 to 0. 0 by friction heat of about 140 ° C generated at this time.
After drying to 3 wt%, in the case of polyurethane, the rotation speed is 9
Approximately 6 due to frictional heat generated by a stirring impact blade of 00 rpm
After drying for a minute, after throwing the crushed material of the PET bottle into this wood powder and / or polyurethane and further stirring with a stirring impact blade to dry the crushed material of the PET bottle well,
Add PP and / or PE, or PVC and gel and knead. The weight ratio of each raw material mixed at this time is 30 to 50 wt% of crushed PET bottles, preferably 35 to 4
0 wt%, PP and / or PE, or PVC 35-55 wt
%, Preferably 35-45 wt%, polyurethane foam and / or wood flour 5-25 wt%, respectively, preferably 10
~ 20 wt%.
【００２０】このようにして、摩擦熱によりゲル化混練
された前記混合原料は、その後冷却して、粒径１５mm以
下、好適には８〜１０mmのスクリーンを備えた後述の粗
砕手段であるカッターミル等で８〜１０mm以下のペレッ
ト状に整粒する。The mixed raw material thus gelled and kneaded by frictional heat is then cooled and a cutter, which is a coarse crushing means described later, equipped with a screen having a particle size of 15 mm or less, preferably 8 to 10 mm. Granulate into pellets of 8-10 mm or less with a mill or the like.
【００２１】このようにして得られたペレットは、その
後射出成形又は押出成形により、例えば床材、壁材等の
建築材料等として板状に、又は布地等の原料となる糸
状、その他所望の形状に成形することができる。The pellets thus obtained are then injection-molded or extruded into a plate shape as a building material such as flooring and wall materials, or a thread-like material used as a raw material for fabrics, or any other desired shape. Can be molded into.
【００２２】この射出又は押出成形の際の押出温度は、
１８０℃〜２３５℃、好適には２３０℃であり、押出成
形にあっては、成形ダイ１０の成形室２２を押出し生地
２９を加熱する溶融部２１ａと前記溶融部２１ａを通過
した押出し生地２９を徐冷する徐冷部２１ｂにより構成
し、前記溶融部２１ａに相応する成形ダイ１０を２３０
℃〜２４５℃に加熱することが好ましい。また、押出成
形に際しては、後述のブレーキ手段により押出し生地２
９に対して押出し力に抗する抑制力を加えることで、押
出生地の密度を高めることができ、ペットボトルの破砕
物と、他の熱可塑性樹脂成形材との密着性を高めること
ができ、均質で優れた熱可塑性樹脂成形品を得ることが
できる。The extrusion temperature during this injection or extrusion molding is
The temperature is 180 ° C. to 235 ° C., preferably 230 ° C. In extrusion molding, the melted portion 21 a that heats the dough 29 by extruding the molding chamber 22 of the molding die 10 and the extruded dough 29 that has passed through the melted portion 21 a. The forming die 10 corresponding to the melting portion 21a is constituted by the slow cooling portion 21b for slow cooling.
It is preferable to heat to ℃ -245 ℃. When the extrusion molding is performed, the extruded material 2 is extruded by the brake means described later.
By adding a suppressing force against the extrusion force to 9, the density of the extruded dough can be increased, and the crushed material of the PET bottle and the adhesiveness of the other thermoplastic resin molding material can be increased, It is possible to obtain a homogeneous and excellent thermoplastic resin molded product.
【００２３】なお、前記の押出温度及び成形ダイの温度
では、混合原料中のＰＰ及び／又はＰＥ、又はＰＶＣは
完全に溶融されるが、混合原料中のＰＥＴは完全に溶融
せず半溶融状態となり、ＰＰ及び／又はＰＥ、又はＰＶ
Ｃと強固に溶着されつつもこれらに完全に溶け込むこと
なくある程度原形を留めて残留する。そのため、前記Ｐ
ＥＴは、他のＰＰ及び／又はＰＥ、又はＰＶＣに対する
骨材としての役割を備える。At the above-mentioned extrusion temperature and molding die temperature, PP and / or PE or PVC in the mixed raw material is completely melted, but PET in the mixed raw material is not completely melted and is in a semi-molten state. And PP and / or PE or PV
Although it is firmly welded to C, it does not completely melt into these and retains its original shape to some extent and remains. Therefore, the P
ET serves as an aggregate for other PP and / or PE, or PVC.
【００２４】このようにして成形された成形品は、その
後サンディング又はグラインディングにより表面層を除
去されて表面を円滑にされる。このように、表面を円滑
にすることにより、熱可塑性樹脂成形品としての接着
性、塗装性を向上させることができる。The surface of the molded product thus molded is then removed by sanding or grinding to smooth the surface. By smoothing the surface in this way, it is possible to improve the adhesiveness and paintability as a thermoplastic resin molded product.
【００２５】以下、本発明のペットボトルを原料とする
熱可塑性樹脂合成体及びその製造方法、並びに前記熱可
塑性樹脂合成体を原料とした熱可塑性樹脂成形品及びそ
の製造方法を各工程で使用する装置と共に添付図面を参
照して説明する。In the following, the thermoplastic resin synthetic material using the PET bottle of the present invention and the method for producing the same, the thermoplastic resin molded article using the thermoplastic resin synthetic material as the raw material, and the method for producing the same will be used in each step. A description will be given with reference to the accompanying drawings together with the device.
【００２６】〔原材料〕本発明で使用する原材料は、回
収されたペットボトルの破砕物、ＰＥ及び／又はＰＰ、
又はＰＶＣ、好適には、前記原料に加えて木粉及び／又
はポリウレタン発泡体等熱硬化性樹脂発泡体である。[Raw material] The raw material used in the present invention is a crushed PET bottle recovered, PE and / or PP,
Alternatively, PVC, preferably a thermosetting resin foam such as wood powder and / or polyurethane foam in addition to the above raw materials.
【００２７】１．原料１〔ペットボトル〕 本発明において使用されるペットボトルは、炭酸飲料等
の清涼飲料の包装用容器として使用されるペットボトル
の他に、シャンプー、洗剤、目薬、サラダ油、食酢、し
ょう油、ソース、ドレッシング、ミリン、酒、ビール
等、各種製品の包装用容器として使用されているペット
ボトルを使用することができる。1. Raw material 1 [PET bottle] The PET bottles used in the present invention include shampoos, detergents, eye drops, salad oil, vinegar, soy sauce, sauces, in addition to PET bottles used as packaging containers for soft drinks such as carbonated drinks. A PET bottle used as a packaging container for various products such as dressing, mirin, liquor and beer can be used.
【００２８】なお、このペットボトルは、炭酸飲料用の
ペットボトルにおける袴部、キャップを緊締する注ぎ口
の部分及びラベル等がＰＥＴ以外の熱可塑性樹脂（例え
ばＰＰ）により形成されており、厳密にはＰＥＴのみで
構成されるものではないが、本発明においてはＰＥＴ以
外の熱可塑性樹脂材料で形成された前記袴部、注ぎ口、
ラベル等の部位を除去することなく、ＰＥＴより成る部
分と同様に後述の処理がされる。従って、本発明に於け
るペットボトルの重量組成には、これらのラベルなどを
含む。In this PET bottle, the hakama portion of the PET bottle for carbonated drinks, the portion of the spout for tightening the cap, the label and the like are formed of a thermoplastic resin (for example, PP) other than PET. Is not composed only of PET, but in the present invention, the hakama portion, the spout, formed of a thermoplastic resin material other than PET,
The processing described below is performed in the same manner as the portion made of PET without removing the portion such as the label. Therefore, the weight composition of the PET bottle in the present invention includes these labels and the like.
【００２９】２．原料２〔ＰＰ，ＰＥ，ＰＶＣ〕 本発明で使用される前記ＰＰ，ＰＥ，ＰＶＣは、バージ
ンの又は廃棄された各種の樹脂成形品を回収して使用す
ることができる。2. Raw Material 2 [PP, PE, PVC] The PP, PE, PVC used in the present invention can be used by collecting various virgin or discarded resin molded products.
【００３０】自動車の内外装品や各種家電製品のキャビ
ネット、その他の回収された熱可塑性樹脂成形材を使用
する場合には、これをそのまま使用することもできる
が、回収された樹脂成形品の表面に樹脂塗膜等の施され
たものにあってはこれを複数の各小片に破砕し、前記破
砕された個々の各小片に対して、圧縮研削作用を付加し
て樹脂塗膜を研削・剥離して前記研削された個々の各小
片に対して、微振動に基づいた圧縮衝撃力を付加して圧
潰粉砕させ、かつ圧潰粉砕によって剥離された樹脂塗膜
を随時除去し熱可塑性樹脂成形材として素材化して得れ
ば好適である。In the case of using interior and exterior parts of automobiles, cabinets of various home electric appliances, and other recovered thermoplastic resin molding materials, these can be used as they are, but the surface of the recovered resin molding products If it has a resin coating on it, it is crushed into multiple pieces, and a compression grinding action is applied to each of the crushed pieces to grind and peel off the resin coating. Then, with respect to each of the ground small pieces, a compression impact force based on microvibration is applied to crush and crush, and the resin coating film peeled by crushing and crushing is removed at any time to obtain a thermoplastic resin molding material. It is preferable that the material is obtained.
【００３１】そして、このようにして得られた熱可塑性
樹脂成形材を原材料として使用する。Then, the thermoplastic resin molding material thus obtained is used as a raw material.
【００３２】なお、前記熱可塑性樹脂成形材は、前記熱
可塑性樹脂成形材の廃材から得られた回収熱可塑性樹脂
成形材を再利用したもの、あるいはバージンの熱可塑性
樹脂成形材と前記回収熱可塑性樹脂成形材を例えばそれ
ぞれ５０％ずつ混合して使用することもできる。The thermoplastic resin molding material is a recycled thermoplastic resin molding material obtained from a waste material of the thermoplastic resin molding material, or a virgin thermoplastic resin molding material and the recovered thermoplastic resin molding material. For example, 50% of each resin molding material may be mixed and used.
【００３３】３．原料３〔木粉〕 本発明に使用する木粉は、微粉砕された木材であり、バ
ージンの又は回収された建築廃材、材木工場等において
排出され剪断された木材の切り屑（おが屑）、かんな屑
等の各種の木材を使用することができる。もつとも、自
然環境に対する人々の感覚が鋭敏化し、環境保全が盛ん
に叫ばれる今日にあっては、回収された建築廃材等の木
材や、従来は廃棄・焼却されていたおが屑等の回収原料
を使用することが好ましい。3. Raw Material 3 [Wood Flour] The wood flour used in the present invention is finely pulverized wood, such as virgin or recovered construction waste material, wood chips discharged from a timber factory and sheared, and planed. Various types of wood such as scrap can be used. In today's world, when people's sense of the natural environment has become more sensitive and environmental protection has been clamored for, nowadays, we use wood such as recovered construction waste wood and recovered raw materials such as sawdust that was previously discarded and incinerated. Preferably.
【００３４】これらの木粉の原料たる木材等は、例えば
粒径２００μ程度に破砕し、好適には５０μ〜２００μ
程度に粉砕して使用する。Wood or the like as a raw material of these wood powders is crushed to a particle size of about 200 μ, and preferably 50 μ to 200 μ.
Use it after crushing to a certain degree.
【００３５】４．原料４〔ポリウレタン〕 自動車のシートからプラスチックシートあるいは、皮革
等でなる表面層およびスプリングを取り外したシートク
ッション、さらには、冷蔵庫、マットレスを構成するポ
リウレタン発泡体は、必要に応じて、破砕工程を経たう
えで、被処理粉砕樹脂として回収する。4. Raw material 4 [Polyurethane] A seat cushion obtained by removing a plastic sheet or a surface layer made of leather or the like and a spring from an automobile seat, and further, a polyurethane foam constituting a refrigerator or a mattress, if necessary, undergoes a crushing step. Then, it is recovered as a crushed resin to be treated.
【００３６】上記ポリウレタン発泡体をカッタミル等の
破砕手段で一辺が２×２mm程度以下の大きさの立方体、
直方体ないしは球体、円柱形等の不定形に粉砕し、さら
にカッタミルにより１×１mm以下に粉砕する。なお、シ
ートクッションから回収されたポリウレタン発泡体の嵩
比重は０．０２８であるが、この破砕工程を経たポリウ
レタンの被処理粉砕樹脂の嵩比重は０．１５３であっ
た。The above polyurethane foam is crushed by a cutter mill or the like to obtain a cube whose one side is 2 × 2 mm or less.
It is crushed into an indeterminate shape such as a rectangular parallelepiped, a sphere or a cylinder, and further crushed to 1 × 1 mm or less by a cutter mill. The bulk specific gravity of the polyurethane foam recovered from the seat cushion was 0.028, but the bulk specific gravity of the crushed resin to be treated of polyurethane after this crushing step was 0.153.
【００３７】なお、ここでの嵩比重は、緩めの嵩比重
で、１００ccの容器に前記材料を容器内に山盛り状態と
した後、これをすり切り、この容器内の材料の総重量を
１００で除した数値で示している。The bulk specific gravity here is a loose bulk specific gravity, and after the above-mentioned material is piled up in a container of 100 cc and then scraped off, the total weight of the material in this container is divided by 100. It shows with the numerical value.
【００３８】必要に応じて、上記木粉等の乾燥工程後、
樹脂投入前に、着色剤を投入する。If necessary, after the step of drying the wood flour, etc.,
A colorant is added before the resin is added.
【００３９】工程１〔破砕・粗砕工程〕 この工程は、回収されたペットボトルを破砕する工程で
ある。Step 1 [Crushing / Crushing Step] This step is a step of crushing the collected PET bottle.
【００４０】本工程では回収されたペットボトルを、例
えば１５×５０mm程度の大きさに切断する「破砕手段」
による「破砕工程」と、この１５×５０mm程度の大きさ
に切断されたペットボトルをさらに微細に破砕する「粗
砕手段」による「粗砕工程」を含む。In this step, "crushing means" for cutting the collected PET bottle into a size of, for example, 15 × 50 mm
The "crushing step" and the "coarse crushing step" by the "coarse crushing means" for further crushing the PET bottles cut into the size of about 15 × 50 mm into smaller pieces are included.
【００４１】〔破砕工程〕回収されたペットボトルは、
キャップ等の金属部品が取り除かれた後、例えば、図１
に示す破砕手段１１０を用いて適当な大きさの断片に切
断、もしくは広義に破砕し、例えば１５×５０mm程度の
大きさの破砕片６０を形成する。この際、ペットボトル
中の袴部、注ぎ口、ラベル等のＰＥＴ以外の材料で形成
されている部材は取り除くことなく、他のＰＥＴ部分と
共に破砕される。[Crushing Step] The collected PET bottles are
After removing the metal parts such as the cap, for example, as shown in FIG.
Using the crushing means 110 shown in (1), it is cut into pieces of an appropriate size, or is crushed in a broad sense to form crushed pieces 60 having a size of, for example, 15 × 50 mm. At this time, a member made of a material other than PET such as a hakama portion, a spout, and a label in the PET bottle is crushed together with other PET portions without being removed.
【００４２】〔破砕手段〕破砕手段はペットボトルを破
砕して適当な大きさの破砕片を形成するもので、本実施
例において、便宜上「クラッシャ」という。[Crushing Means] The crushing means is for crushing a PET bottle to form a crushed piece having an appropriate size, and is called a “crusher” for convenience in this embodiment.
【００４３】図１に「クラッシャ」の一例を示す。クラ
ッシャ１１０は、上部に被破砕物の投入口を有するクラ
ッシャ本体内に互いに内向きに回転する２軸を平行に設
け、各軸に複数枚の回転刃を所定間隔に設けると共に、
各軸の各回転刃外周で互いに噛み合って且つ各回転刃の
外周面に等角度を成すように突設した３個の爪刃で、回
収されたペットボトルを適宜大の断片からなる破砕片に
切断するように設けられている。FIG. 1 shows an example of "crusher". The crusher 110 is provided with two axes rotating inward each other in parallel in a crusher main body having an input port for crushed material at an upper portion, and a plurality of rotary blades provided at predetermined intervals on each axis,
With three claw blades that mesh with each other on the outer circumference of each rotary blade of each shaft and project on the outer peripheral surface of each rotary blade so as to form an equal angle, collect the collected PET bottles into crushed pieces of appropriately large fragments. It is provided to cut.
【００４４】上部の投入口から投入されたペットボトル
は、互いに内向きに回転する２軸の回転刃の爪刃により
内部に引き込まれ、噛み合った状態で回転する回転刃の
外周エッジ間に、連続的に作用する剪断力でスリットし
ながら引き込まれる時に作用する圧縮力によって破砕さ
れて切断され、破砕片６０が形成される。この破砕片６
０は前記２軸の回転刃の下方に設けた排出口から排出さ
れる。The plastic bottle charged from the upper charging port is drawn inward by the claw blades of the two-axis rotary blades that rotate inward with each other, and is continuously connected between the outer peripheral edges of the rotary blades that rotate in a meshed state. The crushed pieces 60 are formed by being crushed and cut by the compressive force that acts when being drawn in while slitting by the shearing force that acts on the crushed piece. This crushed piece 6
0 is discharged from a discharge port provided below the biaxial rotary blade.
【００４５】なお、破砕工程は、上記のクラッシャに限
定されず、例えば、（株）ホーライ社製のガイナックス
クラッシャ、又は（株）奈良機械製作所製のロールクラ
ッシャ等、種々のモノカッタ、シュレッダー、クラッシ
ャ等の破砕手段を用いることができる。The crushing process is not limited to the above-mentioned crusher. For example, various types of mono-cutters, shredders, crushers, such as Gainax crusher manufactured by Horai Co., Ltd. or roll crusher manufactured by Nara Machinery Co., Ltd. The crushing means can be used.
【００４６】〔粗砕工程〕本工程は、前記〔破砕工程〕
で得られた破砕片６０をより微細に「粗砕」する工程で
あり、前述した工程１〔破砕工程〕における破砕手段で
１５×５０mm程度の大きさに形成された破砕片６０を図
１に示す粗砕手段を用いて、さらに細かく切断、もしく
は広義には破砕して、一辺が１mm程度以下の大きさの被
処理小片６２を形成する工程である。[Crushing Step] This step is the same as the above [crushing step].
1 is a step of "coarsely crushing" the crushed pieces 60 obtained in step 1 into finer pieces. FIG. 1 shows the crushed pieces 60 formed into a size of about 15 × 50 mm by the crushing means in the step 1 [crushing step] described above. This is a step of forming a small piece 62 to be processed having a side of about 1 mm or less by further finely cutting or crushing in a broad sense using the coarse crushing means shown.
【００４７】〔粗砕手段〕粗砕手段は破砕片６０を切
断、破砕して適当な大きさの被処理小片６２を形成する
もので、本実施例において、便宜上「カッタミル」とい
う。[Coarse Crushing Means] The coarse crushing means cuts and crushes the crushed pieces 60 to form the small pieces 62 to be treated, and is called a "cutter mill" for convenience in this embodiment.
【００４８】図２に粗砕手段の一例であるカッタミル１
２０を示す。FIG. 2 shows a cutter mill 1 which is an example of coarse crushing means.
20 is shown.
【００４９】１２１はカッタミル本体で、上面開口を有
する円筒形を成すケーシングであり、前記開口を開閉自
在な蓋１２２で被蓋する。前記蓋１２２はカッタミル本
体１２１内に被粗砕物である破砕片６０を投入する投入
口１２３を備えている。Reference numeral 121 denotes a cutter mill body, which is a cylindrical casing having an upper surface opening, and the opening is covered with a lid 122 which can be freely opened and closed. The lid 122 is provided with a charging port 123 for charging the crushed pieces 60, which are coarsely crushed objects, inside the cutter mill body 121.
【００５０】また、前記カッタミル本体１２１内にはカ
ッタミル本体１２１の底面に軸承されて図示せざる回転
駆動手段で水平方向に回転するカッタ支持体１２４を設
け、このカッタ支持体１２４の外周に上下方向に長い回
転刃１２５を３枚設け、これらの３枚の回転刃１２５は
カッタ支持体１２４の回転方向で１２０度の等角度を成
すように配設し、且つ、３枚の回転刃１２５の刃先は同
一の回転軌跡上に位置している。さらに、前記３枚の回
転刃１２５の刃先の回転軌跡に対して僅かな隙間を介し
て二の固定刃１２６を回転刃１２５の刃先の回転軌跡の
略対称位置にカッタミル本体１２１に固定し、二の固定
刃１２６とカッタ支持体１２４と回転刃１２５とでカッ
タミル本体１２１内を二分し、投入室１２７と粗砕室１
２８を形成する。前記蓋１２２の投入口１２３は前記投
入室１２７に連通する。なお、二の固定刃１２６と回転
刃１２５とのクリアランスは被粗砕物を所望の大きさに
切断、もしくは広義には破砕できるように自在に調整で
きる。本実施例のクリアランスは０．２〜０．３mmであ
る。また、粗砕室１２８は前記二の固定刃１２６間を回
転刃１２５の回転軌跡の周囲を囲むようにメッシュのス
クリーン１２９で仕切っている。なお、スクリーン１２
９は、本実施例では一辺が１mm程度の大きさの被処理小
片６２が通過できるメッシュで形成している。また、粗
砕室１２８のカッタミル本体１２１の下端には前記処理
小片６２を排出する排出口を設けている。Further, inside the cutter mill body 121, there is provided a cutter support body 124 which is supported on the bottom surface of the cutter mill body 121 and rotates horizontally by a rotation drive means (not shown). Is provided with three long rotary blades 125, and these three rotary blades 125 are arranged so as to form an equal angle of 120 degrees in the rotation direction of the cutter support body 124, and the blade tips of the three rotary blades 125 are arranged. Are located on the same rotation locus. Further, the second fixed blade 126 is fixed to the cutter mill main body 121 at a position substantially symmetrical to the rotational locus of the blade tip of the rotary blade 125 with a slight gap with respect to the rotational trajectory of the blade tip of the three rotary blades 125. The inside of the cutter mill main body 121 is divided into two by the fixed blade 126, the cutter support body 124, and the rotary blade 125 of the charging chamber 127 and the crushing chamber 1.
28 is formed. The input port 123 of the lid 122 communicates with the input chamber 127. The clearance between the second fixed blade 126 and the rotary blade 125 can be freely adjusted so that the material to be crushed can be cut into a desired size or crushed in a broad sense. The clearance of this embodiment is 0.2 to 0.3 mm. Further, in the crushing chamber 128, the two fixed blades 126 are partitioned by a mesh screen 129 so as to surround the rotation locus of the rotary blade 125. The screen 12
In the present embodiment, 9 is formed of a mesh through which a small piece 62 to be processed having a side of about 1 mm can pass. A discharge port for discharging the processing piece 62 is provided at the lower end of the cutter mill body 121 of the crushing chamber 128.
【００５１】以上のカツタミル１２０において、蓋１２
２の投入口１２３から前述した〔破砕工程〕のクラッシ
ャ１１０で形成した１５×５０mm程度の大きさの破砕片
６０を投入し、図示せざる回転駆動手段でカッタ支持体
１２４を回転すると、破砕片６０はカッタ支持体１２４
の回転刃１２６間でスクリーン１２９を経て形状、面積
は、不定であるが、略全量が、一辺が１mm程度以下の方
形ないし不定型の被処理小片６２に形成され前記排出口
から次工程へ排出される。In the above cutter mill 120, the lid 12
When the crushed pieces 60 having a size of about 15 × 50 mm formed by the crusher 110 of the above [crushing step] are charged from the charging port 123 of No. 2 and the cutter support 124 is rotated by the rotation driving means (not shown), the crushed pieces are 60 is a cutter support member 124
Although the shape and area are indefinite between the rotary blades 126 through the screen 129, almost the entire amount is formed on the square or indefinite small piece 62 to be processed which has a side of about 1 mm or less and is discharged from the discharge port to the next step. To be done.
【００５２】なお、粗砕手段は、上記のカッタミルに限
定されず、例えば（株）ホーライ社製のハードクラッシ
ャのように、回転刃１２５の回転軸は水平方向に設けら
れ、二の固定刃１２６間のスクリーン１２９は下方に設
けられているものもある。The coarse crushing means is not limited to the above-mentioned cutter mill, and the rotary shaft of the rotary blade 125 is provided in the horizontal direction like the hard crusher manufactured by Horai Co., Ltd., and the second fixed blade 126 is used. In some cases, the screen 129 between them is provided below.
【００５３】工程２〔流動混合混練・冷却整粒工程〕 本工程は、前記工程を経て得られた被処理小片６２たる
ペットボトルの破砕物を撹拌衝撃翼による撹拌の際の摩
擦熱により乾燥した後、他の原料（ＰＰ、ＰＥ、ＰＶ
Ｃ、木粉、ポリウレタン発泡体）と混合混練し、該混合
原料を射出又は押出成形に適したペレット状に整粒する
工程である。Step 2 [Fluid Mixing / Kneading / Cooling and Graining Step] In this step, the crushed material of the PET bottle, which is the small piece 62 to be treated, obtained through the above-mentioned step is dried by friction heat at the time of stirring by a stirring impact blade. After that, other raw materials (PP, PE, PV
C, wood powder, polyurethane foam) and kneaded, and the mixed raw material is granulated into pellets suitable for injection or extrusion molding.
【００５４】本工程は、前記第１工程を経て処理された
被処理小片６２を後述の流動混合混練手段により回転数
９００rpm で約５〜８分間混合・混練し、この混合・乾
燥・混練の際に発生する１４０〜１９０℃の摩擦熱によ
りペットボトルの洗浄の際にペットボトルに付着してな
お被処理小片６２に付着する水分を除去・乾燥する工程
と、前記乾燥された被処理小片３０〜６０wt％に対して
４０〜７０wt％のＰＰ及び／又はＰＥ、又はＰＶＣを投
入し、回転数９００rpm で約５分間これらを混合・混練
し、混合・混練の際に発生する１９０〜２２０℃の摩擦
熱により混合、乾燥、混練する工程、及び前記工程によ
って得られた混合原料を冷却して粒径１５mm程度のペレ
ット状、好適には８〜１０mm程度のペレット状に整粒し
て熱可塑性樹脂合成体を得る工程を含む。In this step, the small piece 62 to be treated, which has been processed through the first step, is mixed and kneaded at a rotation speed of 900 rpm for about 5 to 8 minutes by the fluid mixing and kneading means described later, and at the time of this mixing, drying and kneading. The process of removing and drying the water that adheres to the PET bottle and still adheres to the small piece 62 to be processed during the cleaning of the plastic bottle due to the frictional heat of 140 to 190 ° C. 40 to 70 wt% of PP and / or PE or PVC is added to 60 wt% and they are mixed and kneaded at a rotation speed of 900 rpm for about 5 minutes. Friction at 190 to 220 ° C generated during mixing and kneading The steps of mixing, drying, and kneading by heat, and cooling the mixed raw material obtained by the above-mentioned steps to form pellets having a particle size of about 15 mm, preferably pellets having a particle size of about 8 to 10 mm to synthesize a thermoplastic resin. Body Including the step of obtaining.
【００５５】被処理小片６２とＰＰ及び／又はＰＥ、又
はＰＶＣに加えて、粒径１００μ程度に破砕された木
粉、又は粒径０．８mm程度に整粒された、回収された又
はバージンのポリウレタン発泡体等熱硬化性樹脂発泡体
を混入し、被処理小片６２であるペットボトルの破砕物
と共に木粉及び／又はポリウレタン発泡体等熱硬化性樹
脂発泡体をＰＰ及び／又はＰＥ、又はＰＶＣの骨材とし
て混入することもできる。木粉を前記被処理小片６２及
びＰＰ及び／又はＰＥ、又はＰＶＣと共に混入する場合
には、粒径１００μ程度の木粉を流動混合混練手段に投
入後、回転数９００rpm で回転する撹拌衝撃翼により約
８分間撹拌し、この撹拌の際に生じる約１４０℃の摩擦
熱で木粉中の水分量を０．１〜０．３wt％まで減じ、そ
の後この木粉の投入されたミキサー８０内にペットボト
ルの破砕物を投入してさらに５〜８分間撹拌して木粉と
ペットボトルの破砕物を混合するとともにペットボトル
の破砕物を摩擦熱により良く乾燥させ、その後、ＰＰ及
び／又はＰＥ、又はＰＶＣを前記ミキサー８０内に投入
してゲル化混練する。このように木粉を乾燥させておく
ことで、押出成形時の木酸ガスの発生等による成品内の
気泡の発生、成形後の成品の収縮による変形等を防止で
きる。In addition to the small piece 62 to be treated and PP and / or PE or PVC, wood flour crushed to a particle size of about 100 μ, or recovered, or virgin sized to a particle size of about 0.8 mm. Thermosetting resin foam such as polyurethane foam is mixed, and wood powder and / or thermosetting resin foam such as polyurethane foam, PP and / or PE, or PVC together with the crushed material of the PET bottle, which is the small piece 62 to be treated. It can also be mixed as an aggregate. When the wood powder is mixed with the small piece 62 to be treated and PP and / or PE, or PVC, the wood powder having a particle diameter of about 100 μ is put into a fluid mixing and kneading means, and then, by a stirring impact blade rotating at a rotation speed of 900 rpm. Stir for about 8 minutes, reduce the amount of water in the wood flour to 0.1 to 0.3 wt% by the friction heat of about 140 ° C. generated during the stirring, and then put the pet in the mixer 80 containing the wood flour. The crushed material of the bottle is charged and further stirred for 5 to 8 minutes to mix the wood powder and the crushed material of the PET bottle, and the crushed material of the PET bottle is well dried by friction heat, and then PP and / or PE, or PVC is put into the mixer 80 and kneaded for gelation. By drying the wood powder in this manner, it is possible to prevent generation of bubbles in the product due to generation of wood acid gas during extrusion molding, deformation due to contraction of the product after molding, and the like.
【００５６】なお、ＰＥＴの融点は約２５６℃であるの
で、前記混合・乾燥・混練によってはＰＥＴは溶融せ
ず、図４に示すように混練材料中にある程度原形を留め
たまま残留し、他の熱可塑性樹脂成形材中に溶け込むこ
とはない。もっとも、前記混合・混練の際に、被処理小
片６２はより微細になる。Since the melting point of PET is about 256 ° C., PET is not melted by the above mixing, drying and kneading, and as shown in FIG. 4, it remains in its original shape to some extent in the kneading material. It does not melt into the thermoplastic resin molding material. However, the small pieces 62 to be processed become finer during the mixing and kneading.
【００５７】〔流動混合混練手段〕図３において、８０
は原材料を混合混練して「混練材料」を形成する流動混
合混練手段で、実施例において便宜上「ミキサー」とい
う。[Fluid Mixing / Kneading Means] In FIG.
Is a fluid mixing and kneading means for mixing and kneading raw materials to form a "kneading material", which is referred to as "mixer" for convenience in the examples.
【００５８】８１はミキサー本体で、上面開口を有する
円筒形を成し、容量が３００リットルのケーシングであ
り、前記開口はミキサー本体８１内に原材料を投入する
投入口９４で、この投入口９４を開閉自在な上蓋８２で
被蓋する。上蓋８２には、木粉を混入した場合にミキサ
ー本体８１内で発生する多量の水蒸気ないしは木酸ガス
を排出するガス排出管９５を連通している。さらに、ミ
キサー本体８１の底面付近の外周面に１ケ所の排出口８
８を設け、この排出口８８を被蓋する蓋８９をシリンダ
９１のロッドの先端に設け、シリンダ９１の作動により
前記排出口８８を開閉自在に設けている。９３は排出ダ
クトで、前記排出口８８に連通している。Reference numeral 81 denotes a mixer main body, which is a casing having a cylindrical shape with an upper surface opening and a capacity of 300 liters. The opening is an input port 94 for inputting raw materials into the mixer main body 81. The upper lid 82 that can be opened and closed covers the lid. A gas discharge pipe 95 for discharging a large amount of water vapor or wood acid gas generated in the mixer main body 81 when wood powder is mixed is connected to the upper lid 82. Furthermore, one outlet 8 is provided on the outer peripheral surface near the bottom of the mixer body 81.
8 is provided, a lid 89 for covering the discharge port 88 is provided at the tip of the rod of the cylinder 91, and the discharge port 88 is opened and closed by the operation of the cylinder 91. A discharge duct 93 communicates with the discharge port 88.
【００５９】さらに、ミキサー本体８１の底面の中心に
は、図示せざるモータ３７KW（ＤＣ）の回転駆動手段に
より高速回転する軸８３をミキサー本体８１内の上方に
向けて軸承し、この軸８３に下から上方へ順にスクレイ
パー８４、撹拌衝撃翼８５，８６，８７を装着し、軸８
３の先端から締付ナット９２で締め付けている。なお、
前記各撹拌衝撃翼８５，８６，８７の形状は特に限定さ
れないが、本実施例では軸８３を中心に対称を成す２枚
羽根である。図３のように３個の撹拌衝撃翼を重ねた場
合は全部で６枚の羽根で成り、これら６枚の羽根は平面
で３６０度を６等分した等分角（６０度）を成すように
互いに交差した状態で重ねている。なお、複数個の撹拌
衝撃翼を設けた場合、撹拌衝撃翼の合計の羽根数で３６
０度を等分した角度で互いに交叉して重ねることは原材
料を効率良く混練する点で好ましい。Further, at the center of the bottom surface of the mixer main body 81, a shaft 83 which rotates at a high speed by a rotation driving means of a motor 37KW (DC) (not shown) is supported upward in the mixer main body 81. The scraper 84 and stirring impellers 85, 86, 87 are attached in this order from bottom to top, and the shaft 8
The tightening nut 92 is tightened from the tip of No. 3. In addition,
The shape of each of the stirring impact blades 85, 86, 87 is not particularly limited, but in the present embodiment, it is two blades that are symmetrical about the axis 83. When three stirring impact blades are piled up as shown in Fig. 3, it consists of a total of 6 blades, and these 6 blades form an even angle (60 degrees) that divides 360 degrees into 6 equal parts in a plane. Are overlapped with each other. When multiple stirring impact blades are provided, the total number of stirring impact blades is 36
It is preferable that the raw materials are efficiently kneaded when they are overlapped with each other at an angle of 0 °.
【００６０】なお、前記スクレイパー８４はミキサー本
体８１の底面を僅かに摺接して回転し、ミキサー本体８
１内で混練された原材料をミキサー本体８１の底面に残
留しないように掻き出し、且つ原材料を循環するもので
ある。The scraper 84 is rotated by slightly sliding the bottom surface of the mixer body 81 into contact with the mixer body 8.
The raw material kneaded in 1 is scraped out so as not to remain on the bottom surface of the mixer body 81, and the raw material is circulated.
【００６１】〔冷却・造粒手段〕図５において、１００
は前述した混練材料を混合し撹拌して熱可塑性樹脂合成
体を形成する冷却造粒手段であり、本実施例では「クー
リングミキサー」という。[Cooling / Granulating Means] In FIG. 5, 100
Is a cooling granulating means for mixing the above-mentioned kneading materials and stirring to form a thermoplastic resin composite, and is referred to as a “cooling mixer” in this embodiment.
【００６２】１０１はミキサー本体で、逆円錐形状を成
すケーシングであり上面を被蓋し、一方、下端に排出口
１０７を設け、この排出口１０７をバルブ１０６で開閉
自在に設けている。ミキサー本体１０１の外周壁内にジ
ャケット１０２を形成し、このジャケット１０２内に給
水管１０８から排水管１０９へ常時、冷却水を供給し、
クーリングミキサー１００内の原材料の温度を熱可塑性
樹脂成形材の融点近傍まで冷却するよう保持される。な
お、ミキサー本体１０１の上壁面にはクーリングミキサ
ー１００内で発生した水蒸気ないしは木酸ガスの図示せ
ざる排出ダクトを連通している。Reference numeral 101 denotes a mixer main body, which is a casing having an inverted conical shape, the upper surface of which is covered, while a discharge port 107 is provided at the lower end, and the discharge port 107 is opened and closed by a valve 106. A jacket 102 is formed in the outer peripheral wall of the mixer main body 101, and cooling water is constantly supplied from a water supply pipe 108 to a drain pipe 109 in the jacket 102.
The temperature of the raw materials in the cooling mixer 100 is maintained so as to be cooled to near the melting point of the thermoplastic resin molding material. An unillustrated exhaust duct for water vapor or wood acid gas generated in the cooling mixer 100 is connected to the upper wall surface of the mixer body 101.
【００６３】前記ミキサー本体１０１の上壁内の略中心
にはアーム１０３が略水平方向に回動可能に軸支され、
このアーム１０３は減速装置１１２を介してモータ１１
１により約３rpm の速度で回転駆動される。さらに、前
記アーム１０３の回転軸は中空軸であり、この中空軸内
に独立して回転する他の回転軸を設け、この回転軸にモ
ータ１０５の出力軸を連結している。一方、前記アーム
１０３の先端には撹拌破砕翼１０４を軸承し、この撹拌
破砕翼１０４は本実施例ではスクリュー型を成すもので
あり、該撹拌破砕翼１０４の回転軸線方向をミキサー本
体１０１の内周壁面に沿って略平行に下方へミキサー本
体１０１の下端付近まで延長している。撹拌破砕翼１０
４はアーム１０３内に設けた歯車等による回転伝達手段
を介して前記モータ１０５の出力軸に連結する回転軸に
連結され９０rpm の速度で回転駆動される。An arm 103 is rotatably supported in a substantially horizontal center in the upper wall of the mixer body 101 so as to be rotatable in a substantially horizontal direction.
This arm 103 is connected to the motor 11 via a reduction gear 112.
It is driven to rotate at a speed of about 3 rpm by 1. Further, the rotating shaft of the arm 103 is a hollow shaft, and another rotating shaft that rotates independently is provided in the hollow shaft, and the output shaft of the motor 105 is connected to the rotating shaft. On the other hand, a stirring and crushing blade 104 is supported at the tip of the arm 103, and the stirring and crushing blade 104 is a screw type in the present embodiment, and the rotational axis direction of the stirring and crushing blade 104 is inside the mixer main body 101. Along the peripheral wall surface, it extends downward substantially parallel to the vicinity of the lower end of the mixer body 101. Stirring crushing blade 10
Reference numeral 4 is connected to a rotating shaft connected to the output shaft of the motor 105 via a rotation transmitting means such as a gear provided in the arm 103, and is rotationally driven at a speed of 90 rpm.
【００６４】なお、ミキサー本体１０１の上壁には投入
口１１３を設け、この投入口１１３に前述した高速流動
式ミキサー８０の排出ダクト９３を連通する。A charging port 113 is provided on the upper wall of the mixer body 101, and the discharging duct 93 of the high-speed fluid mixer 80 is connected to the charging port 113.
【００６５】前述した高速流動式ミキサー８０で形成さ
れた混練材料は排出ダクト９３を経てクーリングミキサ
ー１００の投入口１１３からミキサー本体１０１内へ投
入される。撹拌破砕翼１０４はモータ１０５により９０
rpm の速度で回転し、しかも、アーム１０３が減速装置
１１２を介して減速されたモータ１１１の回転力により
３rpm の速度で水平方向に回転するので、前記撹拌破砕
翼１０４はミキサー本体１０１の内周壁面に沿って円錐
を描くように回転し、アーム１０３内の混練材料を撹拌
する。混練材料はジャケット１０２内の冷却水により冷
却されたミキサー本体１０１の内周壁面で冷却され、自
然に粒径１５mm程度のペレット状に崩れて熱可塑性樹脂
合成体が形成され、この熱可塑性樹脂合成体はバルブ１
０６を開放して排出口１０７より排出される。The kneaded material formed by the above-mentioned high-speed flow type mixer 80 is introduced into the mixer main body 101 from the input port 113 of the cooling mixer 100 through the discharge duct 93. The stirring and crushing blade 104 is moved by the motor 105 to 90
Since the arm 103 rotates at a speed of 3 rpm and the arm 103 rotates horizontally at a speed of 3 rpm by the rotational force of the motor 111 that has been decelerated by the speed reducer 112, the stirring and crushing blade 104 has an inner circumference of the mixer main body 101. The kneaded material in the arm 103 is agitated by rotating so as to draw a cone along the wall surface. The kneading material is cooled by the inner peripheral wall surface of the mixer main body 101 cooled by the cooling water in the jacket 102, and naturally collapses into pellets having a particle diameter of about 15 mm to form a thermoplastic resin composite. Body is valve 1
The gas is discharged from the discharge port 107 by opening 06.
【００６６】なお、冷却造粒工程は上記のクーリングミ
キサーのような装置によるものに限定されるものではな
く、ミキサー本体内の混練材料を撹拌する撹拌羽根を設
け且つミキサー本体の外周壁面に前述したようなジャケ
ットを設け、このジャケット内を流れる冷却水でミキサ
ー本体内の混練材料を冷却するものであっても良く高速
流動式ミキサー８０で形成された混練材料を前記ジャケ
ット１０２を備えてない一般的なミキサーを用いて撹拌
のみを行なって冷却することも可能であり、冷却・造粒
が行われればいかなる手段をも用いることができる。The cooling granulation step is not limited to the one using an apparatus such as the above cooling mixer, and a stirring blade for stirring the kneaded material in the mixer main body is provided and the outer peripheral wall surface of the mixer main body is described above. Such a jacket may be provided, and the kneading material in the mixer main body may be cooled by cooling water flowing in the jacket. The kneading material formed by the high-speed fluid mixer 80 may not be provided in the jacket 102 in general. It is also possible to cool only by stirring using a different mixer, and any means can be used as long as cooling and granulation are performed.
【００６７】なお、前述のように、混練材料はクーリン
グミキサーによる冷却により、自然に粒径１５mm程度に
崩れるが、好適にはこのクーリングミキサーにより形成
されたペレット状混練材料をカッターミル等によって、
粒径１５mm以下、好ましくは８〜１０mmに整粒して熱可
塑性樹脂合成体を得る。As described above, the kneading material naturally collapses to a particle size of about 15 mm by cooling with a cooling mixer, but preferably the pelletized kneading material formed by this cooling mixer is cut by a cutter mill or the like.
The particle size is adjusted to 15 mm or less, preferably 8 to 10 mm to obtain a thermoplastic resin composite.
【００６８】この整粒は、前述の工程で用いたカッター
ミルと同様の手段を用いることができ、前工程で使用し
たカッターミルのスクリーンを前記粒径に対応する大き
さのものに変更すれば良い。For this sizing, the same means as the cutter mill used in the above-mentioned step can be used, and if the screen of the cutter mill used in the previous step is changed to a size corresponding to the above-mentioned particle size. good.
【００６９】〔押出し工程〕この工程では、前記工程
〔流動混合混練・整粒工程〕で製造された熱可塑性樹脂
合成体を加熱された押出機内で溶融し、押出し生地とし
て成形ダイの成形室内に押し出す工程である。[Extrusion Step] In this step, the thermoplastic resin composite produced in the above step [fluid mixing and kneading and sizing step] is melted in a heated extruder, and is extruded into a molding chamber of a molding die. It is a process of extruding.
【００７０】この際の押出温度は１８０〜２３５℃、好
適には２３０℃である。The extrusion temperature at this time is 180 to 235 ° C, preferably 230 ° C.
【００７１】骨材として混入されているペットボトルの
破砕物は、前記温度下では完全に溶融せず、半溶融状態
で押出し生地中に止まり、後に成形された熱可塑性樹脂
成形品の骨材として作用する。The crushed material of the PET bottle mixed as the aggregate does not completely melt under the above temperature, but remains in the extruded dough in a semi-molten state, and is used as the aggregate of the thermoplastic resin molded product molded later. To work.
【００７２】なお、本実施例では、押出成形法により板
状の熱可塑性樹脂成形品を製造する例を示す。もっと
も、本発明の熱可塑性樹脂成形品の製造方法は、後述の
実施例に制限されるものではなく、例えば射出成形によ
って所望の形状に成形する事も可能である。In this example, an example of manufacturing a plate-shaped thermoplastic resin molded product by an extrusion molding method is shown. However, the method for producing a thermoplastic resin molded product of the present invention is not limited to the examples described below, and it is also possible to mold it into a desired shape, for example, by injection molding.
【００７３】〔押出し機〕図６において、７０は単軸押
出機であるが、一般に押出機は通常スクリュー形であ
り、単軸押出機と多軸押出機があり、この変形又はこれ
らが組み合わさった構造を持つものがあり、本発明には
いずれの押出機をも使用することができる。[Extruder] In FIG. 6, reference numeral 70 denotes a single-screw extruder, but generally, the extruder is usually a screw type, and there are a single-screw extruder and a multi-screw extruder. Any extruder can be used in the present invention.
【００７４】７１はスクリューで、単軸型であり、この
スクリュー７１はギヤ変速機７２を介して図示せざるモ
ータによって駆動され、バレル７４内で回転する。この
回転するスクリュー７１でホッパ７３から投入された熱
可塑性樹脂合成体が溶融・混練されながらスクリュー７
１の前方へ押出される。バレル７４の外面にはバンドヒ
ータ７５を設けてバレル７４内が１８０〜２３５℃、好
適には２３０℃となるように過熱されており、このバン
ドヒータ７５によりバレル７４内の熱可塑性樹脂合成体
が加熱されスクリュー７１の溝に沿って前方へ輸送され
ながら漸次溶融・混練される。もっとも、ＰＥＴの融点
は約２５６℃で、バレル７４内の温度より高いので、ペ
ットボトルの破砕物は、完全に溶融することなく半溶融
状態となり、ある程度原形を止めた状態で混練される。
そしてスクリーン７６及びアダプタ１７を経てアダプタ
１７の押出ダイ１９から成形ダイ１０へ押出し生地７９
として押出される。Reference numeral 71 denotes a screw, which is a single-screw type screw. The screw 71 is driven by a motor (not shown) via a gear transmission 72 and rotates in a barrel 74. While the thermoplastic resin composite charged from the hopper 73 is melted and kneaded by the rotating screw 71, the screw 7
1 is pushed forward. A band heater 75 is provided on the outer surface of the barrel 74 to heat the inside of the barrel 74 to 180 to 235 ° C., preferably 230 ° C. The band heater 75 prevents the thermoplastic resin composite in the barrel 74 from being heated. While being heated and transported forward along the groove of the screw 71, it is gradually melted and kneaded. However, since the melting point of PET is about 256 ° C., which is higher than the temperature in the barrel 74, the crushed PET bottle is not completely melted but becomes a semi-molten state and is kneaded in a state in which the original shape is stopped to some extent.
Then, the material 79 is extruded from the extrusion die 19 of the adapter 17 to the forming die 10 through the screen 76 and the adapter 17.
Is extruded as.
【００７５】ホッパ７３内に投入される原材料は、前記
工程１〔破砕・粗砕工程〕で製造された被処理小片６２
たるペットボトルの破砕物と、ＰＰ又はＰＥ、ＰＰ及び
ＰＥ又はＰＶＣ、さらに好適には前記に加えて木粉及び
／又はポリウレタン発泡体等熱硬化性樹脂発泡体を前記
第２工程〔流動混合混練・冷却整粒工程〕で混合・乾燥
・混練して形成した熱可塑性樹脂合成体である。The raw material charged into the hopper 73 is the small piece 62 to be processed produced in the above step 1 [crushing and coarse crushing step].
Crushed PET bottles and PP or PE, PP and PE or PVC, and more preferably in addition to the above, wood powder and / or thermosetting resin foam such as polyurethane foam are used in the second step [fluid mixing and kneading]. -Cooling and sizing step] is a thermoplastic resin composite formed by mixing, drying and kneading.
【００７６】尚、使用目的に応じて、顔料を添加し、製
品に着色することもできる。The product may be colored by adding a pigment depending on the purpose of use.
【００７７】〔押出ダイ〕図６において、１７はアダプ
タで、押出機７０で練成された押出し生地７９を流入す
る流入口１８と押出し生地７９を後述する成形ダイ１０
へ吐出する押出ダイ１９とを備えている。さらに、アダ
プタ１７の先端に断面矩形状を成す突部を設けている。
前記押出ダイ１９は、本実施例では前記突部の先端に約
８mmの肉厚を形成するように幅５０mm、高さ１２mmの細
長の矩形状を成し（図７を参照）、前記流入口１８はア
ダプタ１７の後端面に直径５０mmの円形を成し、この流
入口１８から前記押出ダイ１９に向けて徐々に断面変形
する連通孔を形成している。なお、流入口１８は押出機
７０の断面円形の吐出口と同じ大きさに形成し、一方、
押出ダイ１９の矩形の幅は流入口１８の直径と同じ寸法
に形成し、高さは後述する成形ダイ１０の成形室２２の
高さと同じ寸法に形成することが好ましい。[Extrusion Die] In FIG. 6, reference numeral 17 is an adapter for forming an inflow port 18 into which an extrusion material 79 kneaded by an extruder 70 flows and an extrusion material 79, which will be described later.
And an extrusion die 19 for discharging to. Further, a protrusion having a rectangular cross section is provided at the tip of the adapter 17.
In this embodiment, the extrusion die 19 has an elongated rectangular shape with a width of 50 mm and a height of 12 mm so that the tip of the protrusion has a thickness of about 8 mm (see FIG. 7). A rear end face 18 of the adapter 17 has a circular shape with a diameter of 50 mm, and has a communication hole from which the cross section is gradually deformed from the inlet 18 toward the extrusion die 19. The inflow port 18 is formed to have the same size as the discharge port having a circular cross section of the extruder 70.
The rectangular width of the extrusion die 19 is preferably formed to have the same dimension as the diameter of the inflow port 18, and the height is preferably formed to be the same dimension as the height of the molding chamber 22 of the molding die 10 described later.
【００７８】なお、アダプタ１７は押出機７０の大きさ
に応じて種々の大きさに形成でき、例えば、流入口１８
の直径が１５０mmである場合は押出ダイ１９の矩形の幅
を１５０mm、高さを成形室２２の高さと同じ１２mmとす
ることができる。The adapter 17 can be formed in various sizes according to the size of the extruder 70. For example, the inlet 18
If the diameter is 150 mm, the width of the rectangle of the extrusion die 19 can be 150 mm and the height can be 12 mm, which is the same as the height of the molding chamber 22.
【００７９】前記アダプタ１７の後端は該１７の外周に
嵌着した取付具を介して押出機７０のスクリーン７６を
備えたスクリーン部１６の先端面にボルトなどの取付具
で連結してアダプタ１７の流入口１８と押出機７０のス
クリーン部１６の出口とを連通し、一方、成形ダイ１０
の後端面の略中央位置に断面矩形状の凹部を形成し、こ
の凹部を成形ダイ１０に連通し、凹部にアダプタ１７の
先端の断面矩形状の突部を装着して押出ダイ１９とを連
通する。The rear end of the adapter 17 is connected to the front end surface of the screen portion 16 having the screen 76 of the extruder 70 with a fitting such as a bolt through a fitting fitted to the outer periphery of the adapter 17. The inflow port 18 of the extruder 70 and the outlet of the screen portion 16 of the extruder 70, while the molding die 10
A recess having a rectangular cross section is formed at a substantially central position of the rear end face, the recess is communicated with the molding die 10, and a protrusion having a rectangular cross section at the tip of the adapter 17 is attached to the recess to communicate with the extrusion die 19. To do.
【００８０】〔成形工程〕この工程は、前記押出工程に
より押し出された押出生地７９を、成形ダイ１０の成形
室２２内で所定の形状に成形し、所望の熱可塑性樹脂成
形品を得る工程である。[Molding Step] This step is a step of molding the extruded dough 79 extruded in the extrusion step into a predetermined shape in the molding chamber 22 of the molding die 10 to obtain a desired thermoplastic resin molded product. is there.
【００８１】成形ダイ１０の成形室２２内に押し出され
た押出し生地７９は、成形室２２の溶融部２１ａを通過
して徐冷部２１ｂに至り徐冷されて硬化するが、この時
の成形室２２の溶融部２１ａ内の温度は、２３０〜２４
５℃であり、この温度下ではペットボトルの破砕物を主
として構成するＰＥＴは融点に至っておらずペットボト
ルの破砕物は半溶融状態とはなるが、完全に溶融して押
出し生地７９中に溶け込むことなく、他の熱可塑性樹脂
成形材に対しての骨材となる。The extruded dough 79 extruded into the molding chamber 22 of the molding die 10 passes through the melting portion 21a of the molding chamber 22 and reaches the slow cooling portion 21b where it is gradually cooled and hardened. The temperature in the melting portion 21a of 22 is 230 to 24
The temperature is 5 ° C., and at this temperature, PET, which mainly constitutes the crushed material of PET bottles, does not reach the melting point and the crushed material of PET bottles is in a semi-molten state, but is completely melted and melts into the extruded dough 79. Without becoming a aggregate for other thermoplastic resin molding materials.
【００８２】なお、成形ダイの成形室２２中に押し出さ
れた押出し生地７９は、後述のブレーキ手段により押出
し力に抗する抑制力が加えられ、押出生地の密度が高め
られる。The extruded dough 79 extruded into the forming chamber 22 of the forming die is subjected to a restraining force against the extruding force by a brake means described later, so that the density of the extruded dough is increased.
【００８３】また、成形ダイ１０により成形され、押出
された成形品は、表面をサンディンク又はグラインディ
ングして表面層を除去すれば、表面が化粧面となると共
に、接着性、塗装性が向上する。If the surface of the molded product extruded and extruded by the molding die 10 is sanded or grinded to remove the surface layer, the surface becomes a decorative surface and the adhesiveness and paintability are improved. To do.
【００８４】成形手段１〔成形ダイ１０〕 図８において、１０は成形ダイで、いわゆるＴダイ式の
成形ダイに類似の形状を成しており、押出機７０と前記
アダプタ１７を介して接続され、押出機７０の押出ダイ
１９に連結された入口１１と、この入口１１から導入さ
れた押出し生地７９を幅広で所定の肉厚の板状に成形す
る成形室２２を有する。この成形室２２内は、成形室２
２の入口付近から押出し生地７９の押出方向に向かっ
て、成形室２２の長さの約３分の１まで、その外周にヒ
ータ１４が配設された溶融部２１ａを形成しており、ま
た、他の部分は、冷却管２５がその外周に配設されて徐
冷部２１ｂが形成されている。Molding Means 1 [Molding Die 10] In FIG. 8, 10 is a molding die, which has a shape similar to a so-called T-die type molding die, and is connected to the extruder 70 through the adapter 17. It has an inlet 11 connected to the extrusion die 19 of the extruder 70, and a forming chamber 22 for forming the extrusion dough 79 introduced from the inlet 11 into a wide plate having a predetermined wall thickness. The inside of this molding chamber 22 is the molding chamber 2
From the vicinity of the inlet of 2 to the extrusion direction of the extruded dough 79, up to about one-third of the length of the molding chamber 22, a fusion portion 21a in which the heater 14 is arranged is formed on the outer periphery thereof. In the other part, the cooling pipe 25 is arranged on the outer periphery thereof to form the slow cooling part 21b.
【００８５】前記成形室２２は、一方若しくは双方が加
熱及び冷却手段をそれぞれ備える上下２枚の金属板２
６，２７を両側縁に配置した金属製のスペーサ２８を介
して断面方形に形成したもので、上下２枚の金属板２
６，２７のいずれか一方若しくは双方を交換することに
より、成形室２２の高さを変更可能に構成されている。One or both of the forming chambers 22 are provided with heating and cooling means, and the upper and lower two metal plates 2 are provided.
6 and 27 are formed in a rectangular cross section through metal spacers 28 arranged on both side edges.
The height of the molding chamber 22 can be changed by exchanging either or both of 6 and 27.
【００８６】成形ダイ１０の成形室２２は、本実施例で
は、幅５５０mm、高さ１２mmの細長の矩形状の断面を成
す（図８）。In the present embodiment, the molding chamber 22 of the molding die 10 has an elongated rectangular cross section with a width of 550 mm and a height of 12 mm (FIG. 8).
【００８７】成型室２２の溶融部２１ａは、その横断面
の形状を成形ダイ１０の幅方向に湾曲して延長する両端
が成形室２２の長手方向の両端に及んで、いわゆるコー
ト・ハンガー型に形成されている（図９）。The melting portion 21a of the molding chamber 22 has a so-called coat-hanger type in which both ends of which the shape of the cross section is curved and extended in the width direction of the molding die 10 reach both ends in the longitudinal direction of the molding chamber 22. Formed (FIG. 9).
【００８８】なお、前記溶融部２１ａはコート・ハンガ
ー型の他、ストレイト・マニホールド型に形成してもよ
いが、溶融部２１ａ内を流動する押出し生地７９の流動
性が優れているという点で、前述した湾曲形状のコート
・ハンガー型が好ましい。成形ダイ１０は、一例とし
て、幅５５０mm、高さ１２mmの細長の矩形状の断面を成
し、成形室２２の入口からダイ出口２３までの距離（押
出し方向の距離）は１，０００mmである。The melting part 21a may be formed in a straight manifold type in addition to the coat-hanger type, but the extruded dough 79 flowing in the melting part 21a has excellent fluidity. The above-mentioned curved coat-hanger type is preferable. As an example, the molding die 10 has an elongated rectangular cross section with a width of 550 mm and a height of 12 mm, and the distance from the inlet of the molding chamber 22 to the die outlet 23 (distance in the extrusion direction) is 1,000 mm.
【００８９】次に成形ダイ内の構造について説明する。
前記成形室２２の上下左右の四方の内壁面は厚さ０．２
５mmのフッ素樹脂でなるシート２４を貼設している。こ
の他に、成形室２２の上下左右の四方の内壁面にフッ素
樹脂を直接表面コーティングすることもできるが、交換
が容易でありフッ素樹脂のコーティング加工が容易で耐
久性に富むという点で、フッ素樹脂のシート２４を貼設
することが特に好ましい。Next, the structure inside the molding die will be described.
The inner wall surfaces of the molding chamber 22 in the upper, lower, left, and right directions have a thickness of 0.2.
A sheet 24 made of fluororesin of 5 mm is stuck. Alternatively, fluorocarbon resin may be directly coated on the inner walls of the upper, lower, left, and right sides of the molding chamber 22. However, since fluorocarbon resin is easily exchanged, fluorocarbon resin coating is easy, and the durability is high, the fluorocarbon resin is easily coated. It is particularly preferable to attach a resin sheet 24.
【００９０】前記シート２４は特に好ましくは、ガラス
織布の表面にフッ素樹脂をコーティングしたものであ
り、フッ素樹脂には上述のように、テフロンＴＦＥ、テ
フロンＦＥＰ、テフロンＣＴＦＥ、テフロンＶｄＦ等が
ある。なお、前記ガラス織布はガラス繊維の不織布でも
よい。The sheet 24 is particularly preferably a glass woven fabric coated with a fluororesin, and the fluororesin includes Teflon TFE, Teflon FEP, Teflon CTFE, Teflon VdF, etc., as described above. The glass woven fabric may be a nonwoven fabric of glass fiber.
【００９１】なお、前述のフッ素樹脂のコーティング加
工は、成形室２２の上下の内壁面に施すこともできる
が、前述したように成形室２２の上下左右の内壁面全体
に施すことが望ましい。Although the above-mentioned fluororesin coating process can be applied to the upper and lower inner wall surfaces of the molding chamber 22, it is desirable to apply it to the entire upper, lower, left and right inner wall surfaces of the molding chamber 22 as described above.
【００９２】図８及び図９において、１４はヒータで、
電熱ヒータ等の加熱手段から成り、押出し生地７９を加
熱保温し、押出し生地７９の流動性を維持するため、成
形ダイ１０を形成する上下２枚の金属板２６，２７に、
溶融部２１ａから徐冷部２１ｂ迄の長手方向の３分の１
にわたって配設されている。なお、前記ヒータ１４は前
記上下２枚の金属板２６，２７のいずれか一方にのみ配
設することもでき、また、成形ダイ１０の外壁に配設す
ることもできる。In FIGS. 8 and 9, 14 is a heater,
In order to maintain the fluidity of the extruded material 79 by heating the extruded material 79 by heating means such as an electric heater, the upper and lower two metal plates 26, 27 forming the molding die 10 are
One third in the longitudinal direction from the melting part 21a to the slow cooling part 21b
It is arranged over. The heater 14 may be provided only on one of the two upper and lower metal plates 26, 27, or may be provided on the outer wall of the molding die 10.
【００９３】また、図８において、２５は冷却管で、成
形ダイ１０の成形室２２を冷却する冷却手段の一例を示
すもので、成形室２２の押出し方向に適当な間隔毎に、
この冷却管２５に常温の水又は７０〜８０℃程度までの
水あるいは油等の冷却媒体たる冷却液を供給して成形室
２２内の押出し生地７９を冷却する。この冷却管の配管
は成形室２２内の押出し生地７９の徐冷効果を向上する
ために成形ダイ１０のダイ出口２３の方向に向けて３分
の２にかけて、成形室２２の上下２枚の金属板２６，２
７の各々に８本等間隔で挿通して配管設置されている。
なお、冷却管２５は、上下２枚の金属板２６，２７のい
ずれか一方にのみ配置することもでき、またその設置間
隔を次第に狭くするように設けることもでき、あるいは
冷却管２５を成形ダイ１０の外壁に配設することもでき
るが、成形室２２内の押出し生地７９を冷却できればよ
いので、この実施例の構造に限定されない。Further, in FIG. 8, reference numeral 25 denotes a cooling pipe, which shows an example of a cooling means for cooling the molding chamber 22 of the molding die 10, at an appropriate interval in the extrusion direction of the molding chamber 22,
A cooling liquid as a cooling medium such as water at room temperature or water or oil up to about 70 to 80 ° C. is supplied to the cooling pipe 25 to cool the extruded fabric 79 in the molding chamber 22. In order to improve the gradual cooling effect of the extruded material 79 in the molding chamber 22, the cooling pipe extends over two-thirds in the direction of the die outlet 23 of the molding die 10 so that the upper and lower two metal sheets of the molding chamber 22 are separated from each other. Boards 26,2
Pipes are installed by inserting 8 pieces into each of 7 pieces at equal intervals.
The cooling pipe 25 may be arranged only on either one of the upper and lower two metal plates 26, 27, or may be provided such that the installation interval thereof is gradually narrowed, or the cooling pipe 25 is formed by a molding die. Although it can be arranged on the outer wall of 10, the structure is not limited to the structure of this embodiment as long as the extruded material 79 in the molding chamber 22 can be cooled.
【００９４】〔成形ダイ１０内の作用〕押出機７０に連
結されたアダプタ１７の押出ダイ１９より押出された押
出し生地７９は、成形ダイ１０の入口１１より導入さ
れ、成形ダイ１０の成形室２２の幅方向へ流動する。な
お、成形ダイ１０内が空の状態時には成形室２２の溶融
部２１ａと徐冷部２１ｂの境界付近を後述するブレーキ
手段３０に迄達する後述の熱可塑性樹脂成形品等で閉塞
しておくことにより、流入した押出し生地７９が溶融部
２１ａ内で成形室２２の高さ方向に早期に積層され、ブ
レーキ手段３０により押出し生地７９に押出し力に抗す
る抑制力が加わって、押出し生地７９の密度を高めるこ
とができる。[Operation in Forming Die 10] The extruded material 79 extruded from the extruding die 19 of the adapter 17 connected to the extruder 70 is introduced from the inlet 11 of the forming die 10 to form the forming chamber 22 of the forming die 10. Flows in the width direction of. It should be noted that when the molding die 10 is empty, the vicinity of the boundary between the melting portion 21a and the slow cooling portion 21b of the molding chamber 22 is closed by a thermoplastic resin molded product or the like described below that reaches the brake means 30 described later. The extruded dough 79 that has flowed in is quickly laminated in the height direction of the molding chamber 22 in the melting portion 21a, and the braking means 30 exerts a suppressing force against the extruded force on the extruded dough 79 to reduce the density of the extruded dough 79. Can be increased.
【００９５】押出し生地７９が成形室２２の溶融部２１
ａに押し出される際、成形室２２の溶融部２１ａはその
幅が急に拡がっているので、溶融部２１ａ内を流れる押
出し生地７９は良好な混練状態を保ち、ペットボトルの
破砕物及び木粉及び／又はポリウレタン発泡体等熱硬化
性樹脂発泡体を均一に分散した状態で押出される。The extruded material 79 is the melting portion 21 of the molding chamber 22.
When it is extruded to a, the width of the melting portion 21a of the molding chamber 22 is suddenly widened, so that the extruded dough 79 flowing in the melting portion 21a maintains a good kneading state, and the crushed plastic bottle and wood powder and And / or extruded in a state in which a thermosetting resin foam such as a polyurethane foam is uniformly dispersed.
【００９６】その後、押出し生地７９は、成形室２２の
徐冷部２１ｂ内に導入されて、該徐冷部２１ｂ内で冷却
管２５内を流れる冷却水により冷却されて硬化する。Thereafter, the extruded material 79 is introduced into the slow cooling section 21b of the molding chamber 22, and is cooled and hardened by the cooling water flowing through the cooling pipe 25 in the slow cooling section 21b.
【００９７】このように、徐冷部２１ｂ内に導入され、
硬化の開始した押出し生地中には、前述のペットボトル
の破砕物が分散されており、従って、硬化を開始した押
出し生地７９は、前記ペットボトルの破砕物を分散した
まま硬化して熱可塑性樹脂成形品となり、押出し生地７
９によって押し出される。このようにして、順次成形室
２２の徐冷部２１ｂ内に押し出された押出し生地７９
は、ペットボトルの破砕物を均一に分散した状態で硬化
して熱可塑性樹脂成形品が成形される。なお、本発明の
方法により成形され熱可塑性樹脂成形品の内部に分散さ
れているペットボトルの破砕物は、半溶融状態で樹脂中
に混練されるので、冷却後の熱可塑性樹脂成形品中にあ
る程度原形を止めたまま残り、他の熱可塑性樹脂成形材
の骨材となる。In this way, when introduced into the slow cooling section 21b,
The crushed material of the PET bottle is dispersed in the extruded dough that has started to be cured. Therefore, the extruded material 79 that has started to cure is a thermoplastic resin that is cured while the crushed material of the PET bottle is dispersed. Molded product, extruded dough 7
Extruded by 9. In this way, the extruded dough 79 extruded into the slow cooling part 21b of the forming chamber 22 in order.
Is a cured product of a crushed plastic bottle in a uniformly dispersed state to form a thermoplastic resin molded product. Incidentally, the crushed material of the PET bottle molded by the method of the present invention and dispersed inside the thermoplastic resin molded article is kneaded in the resin in a semi-molten state, so in the thermoplastic resin molded article after cooling. It remains in its original shape to some extent and becomes an aggregate of other thermoplastic resin molding materials.
【００９８】なお、押出し生地７９が成形室２２を流動
する過程において、成形室２２の上下左右の四方の内壁
面には、フッ素樹脂で成るシート２４を貼設しているの
で、押出し生地７９は徐冷されながら円滑に押出され
る。In the process in which the extruded material 79 flows in the molding chamber 22, the sheets 24 made of fluororesin are attached to the inner wall surfaces of the upper, lower, left and right sides of the molding chamber 22. Smoothly extruded while being gradually cooled.
【００９９】フッ素樹脂は、約３００℃の耐熱性を有
し、表面が平滑であり摩擦係数が小さく、金属に比べて
熱伝導係数が低いという性質を有しているので、押出し
生地７９に対して以下に示すような作用をする。The fluororesin has a heat resistance of about 300 ° C., a smooth surface, a small friction coefficient, and a low thermal conductivity coefficient as compared with a metal. And operates as shown below.
【０１００】フッ素樹脂は表面が平滑であり摩擦係数は
小さいので、成形室２２内を通過する押出し生地７９内
の木粉やポリウレタン発泡体等熱硬化性樹脂発泡体、ペ
ットボトルの破砕物等は大きな抵抗を受けずに流動す
る。そのため押出し生地７９の混練状態は良好な状態を
維持して、木粉及び／又はポリウレタン発泡体等熱硬化
性樹脂発泡体、ペットボトルの破砕物が均一に分散した
状態となり、結果として密度が均一で巣ができずしかも
表面が平滑な高品質の熱可塑性樹脂成形品が生成され
る。Since the fluororesin has a smooth surface and a small friction coefficient, thermosetting resin foam such as wood powder and polyurethane foam in the extruded cloth 79 passing through the molding chamber 22 and crushed materials of PET bottles, etc. It flows without great resistance. Therefore, the kneaded state of the extruded dough 79 is maintained in a good state, and the wood powder and / or the thermosetting resin foam such as the polyurethane foam and the crushed material of the PET bottle are uniformly dispersed, resulting in a uniform density. A high-quality thermoplastic resin molded product, which is free from cavities and has a smooth surface, is produced.
【０１０１】成形室２２内の徐冷部２１ｂでは押出し生
地７９が冷却されるので押出し生地７９の流動性が悪く
なる上、押出し生地７９内の木粉及び／又は熱硬化性樹
脂発泡体及びペッボトルの破砕物は他の熱可塑性樹脂成
形材に比べて摩擦抵抗が大きく、従来のＴダイ式の成形
ダイ１０においては、成形ダイ１０の内壁面も摩擦抵抗
が大きいので、成形ダイ１０の内壁面を接触して流動す
る木粉等は大きな抵抗を受けることになり円滑に流動し
ないため押出し生地７９の混練状態を粗密にし巣を形成
するなどの悪影響を及ぼすものであったが、各原料の含
有水分量が極めて低い状態で維持されている熱可塑性樹
脂合成体を用いることと相まって本発明の成形ダイ１０
においては成形室２２の内壁面に表面が平滑で摩擦係数
の小さいフッ素樹脂のシート２４を貼設したことによ
り、押出し生地７９の木粉、熱硬化性樹脂発泡体、ペッ
トボトルの破砕物は成形室２２の内壁面との接触によっ
ても大きな抵抗を受けることなく円滑に流動し、押出し
生地７９に前述したような悪影響を及ぼすことなく押出
し生地７９は均一・高密度の良好な混練状態で成形室２
２内から押出される。Since the extruded dough 79 is cooled in the slow cooling part 21b in the molding chamber 22, the fluidity of the extruded dough 79 deteriorates, and the wood powder and / or the thermosetting resin foam and the pet bottle in the extruded dough 79 are deteriorated. The crushed product has a larger frictional resistance than other thermoplastic resin molding materials. In the conventional T-die type molding die 10, the inner wall surface of the molding die 10 also has a large frictional resistance. Since wood powder or the like that flows by contacting with each other receives a large resistance and does not flow smoothly, it has an adverse effect such as making the kneaded state of the extruded dough 79 dense and dense to form cavities, but containing each raw material. The molding die 10 of the present invention is used in combination with the use of the thermoplastic resin composite body in which the water content is kept extremely low.
In the above, by attaching the fluororesin sheet 24 having a smooth surface and a small friction coefficient to the inner wall surface of the molding chamber 22, the wood powder of the extruded cloth 79, the thermosetting resin foam, and the crushed material of the PET bottle are molded. The extruded dough 79 smoothly flows even if it comes into contact with the inner wall surface of the chamber 22 without receiving a large resistance, and the extruded dough 79 is uniformly kneaded in a high density and has a high kneading state in the forming chamber. Two
2 is extruded.
【０１０２】また、上述したように、フッ素樹脂シート
２４の貼設により押出し生地７９内の木粉及び／又は熱
硬化性樹脂発泡体及びペットボトルの破砕物に対する抵
抗力が小さくなり押出し生地７９は均一な密度で成形さ
れるので、製品としての熱可塑性樹脂成形品２９の表面
にはいわゆる肌荒れが生じることなく平滑な面に仕上が
る。また、従来は、押出し生地７９内の木粉が成形ダイ
１０内で円滑に流動しないために成形ダイのヒータの熱
で木粉が焼けてこげ茶色に変色したが、本発明は上述し
たように押出し生地７９の木粉が円滑に流動するので、
木粉が焼けることなく耐衝撃性など品質特性の低下が生
じない。Further, as described above, by attaching the fluororesin sheet 24, the resistance to the wood powder and / or the thermosetting resin foam and the crushed material of the PET bottle in the extruded cloth 79 becomes small, and the extruded cloth 79 is Since it is molded with a uniform density, the surface of the thermoplastic resin molded product 29 as a product is finished to a smooth surface without so-called roughening of the surface. Further, conventionally, since the wood powder in the extruded dough 79 does not flow smoothly in the molding die 10, the wood powder is burned and discolored to dark brown by the heat of the heater of the molding die, but the present invention is as described above. Since the wood powder of the extruded dough 79 flows smoothly,
No deterioration of quality characteristics such as impact resistance occurs without burning wood powder.
【０１０３】さらに、フッ素樹脂は金属に比べて熱伝導
係数が低いので、押出し生地７９を急速に冷却すること
なく徐冷する効果があり、押出し生地７９の急速な冷却
による歪みを抑える作用を有する。Further, since the fluororesin has a lower thermal conductivity coefficient than metal, it has an effect of gradually cooling the extruded material 79 without rapidly cooling it, and has an effect of suppressing distortion of the extruded material 79 due to rapid cooling. .
【０１０４】さらに加えて、成形室２２の徐冷部２１ｂ
に冷却管２５などの冷却手段を設けたので、本実施例の
ように板状の熱可塑性樹脂成形品を製造した場合であっ
ても従来の押出成形法やカレンダー成形法のように成形
後、熱可塑性樹脂成形品を冷却ロール等で冷却したり補
正ロール等で歪みを取る必要がなく、押出し生地７９が
成形ダイ１０のダイ出口２３から押出されたときに内部
残留応力の少ない熱可塑性樹脂成形品の完成品が成形さ
れる。したがって、本発明の熱可塑性樹脂成形品の押出
製造方法は、従来の押出成形法やカレンダー成形法で成
形された合成板のような経年的な反りやねじれ等の歪み
が生じない。In addition, the slow cooling section 21b of the molding chamber 22
Since cooling means such as the cooling pipe 25 is provided in the above, even when a plate-shaped thermoplastic resin molded product is manufactured as in this embodiment, after molding as in the conventional extrusion molding method or calender molding method, It is not necessary to cool the thermoplastic resin molded product with a cooling roll or the like or to remove the distortion with a correction roll or the like, and the thermoplastic resin molding has a small internal residual stress when the extruded material 79 is extruded from the die outlet 23 of the molding die 10. The finished product is molded. Therefore, the extrusion manufacturing method of the thermoplastic resin molded article of the present invention does not cause distortion such as warpage or twisting over time, which occurs in the synthetic plate molded by the conventional extrusion molding method or calendar molding method.
【０１０５】なお、いわゆるＴダイ式の成形ダイによる
押出成形法においては、押出機７０で混練された押出し
生地７９が比較的小径の押出ダイ１９から幅狭で細長な
矩形状を成す成形室２２へと急激な断面変化をする入口
１１内を流動し次いで幅狭な成形室２２内を比較的長い
距離を流動するので、従来のいわゆるＴダイ式の成形ダ
イによる押出成形法では、木粉を多量に混入した樹脂の
成形は不可能であったが、本発明は、上述したようにフ
ッ素樹脂の優れた性質を充分に活かしていわゆるＴダイ
式の成形ダイによる多量の木粉を含有した熱可塑性樹脂
成形品の押出成形を行うことができる。In the extrusion molding method using a so-called T-die type molding die, the extrusion dough 79 kneaded by the extruder 70 is formed from the extrusion die 19 having a relatively small diameter to a narrow and elongated rectangular forming chamber 22. In the extrusion molding method using the conventional so-called T-die type molding die, wood powder is removed because it flows in the inlet 11 where the cross-section changes sharply and then flows in the narrow forming chamber 22 for a relatively long distance. Although it was impossible to mold a resin mixed in a large amount, the present invention makes full use of the excellent properties of the fluororesin as described above, and thus the heat containing a large amount of wood powder by a so-called T-die type molding die is used. Extrusion molding of a plastic resin molded product can be performed.
【０１０６】〔熱可塑性樹脂成形品の押出しの抑制〕前
述した成形ダイ１０のダイ出口２３より押出された熱可
塑性樹脂成形品２９に対してブレーキ手段３０により押
出し方向と反対方向へ抵抗力を加えて、熱可塑性樹脂成
形品２９の押出し力を抑制する。以下に、ブレーキ手段
３０の実施例を図を参照して説明する。[Suppression of Extrusion of Thermoplastic Resin Molded Article] A braking force is applied to the thermoplastic resin molded article 29 extruded from the die outlet 23 of the molding die 10 in the direction opposite to the extruding direction by the brake means 30. Thus, the extrusion force of the thermoplastic resin molded product 29 is suppressed. Hereinafter, an embodiment of the braking means 30 will be described with reference to the drawings.
【０１０７】図９及び図１０において、３本の自在ピン
チローラ３１ｂの軸の両端を軸承する軸受３４ａをそれ
ぞれ、軸受固定フレーム３６に固定し、固定ピンチロー
ラ３１ａを各軸に設けた歯車１１６と、この歯車１１６
に噛合する歯車１１７で連動し、３本の固定ピンチロー
ラ３１ａのうち１本の固定ピンチローラ３１ａの軸にパ
ウダブレーキ１１５の入力軸を連結する。パウダブレー
キ１１５は、いわゆる電磁ブレーキであり、摩擦トルク
を電気的に微妙に調整できるものである。In FIGS. 9 and 10, the bearings 34a that support both ends of the shafts of the three free pinch rollers 31b are fixed to the bearing fixing frame 36, and the fixed pinch rollers 31a and the gear 116 provided on each shaft. , This gear 116
The input shaft of the powder brake 115 is connected to the shaft of one fixed pinch roller 31a among the three fixed pinch rollers 31a by interlocking with a gear 117 that meshes with. The powder brake 115 is a so-called electromagnetic brake, and can electrically finely adjust the friction torque.
【０１０８】さらに、軸受固定フレーム３６にフレーム
１１４を立設し、このフレーム１１４の壁面にガイド溝
を備えたブロック状のガイド体１１９を２本をそれぞ
れ、該ガイド体１１９の軸線方向を上下方向に向けて略
平行に設け、各３本の自在ピンチローラ３１ｂの軸の両
端を軸承する軸受３４ｂを前記ガイド体１１９のガイド
溝に沿って上下動自在に設け、前記軸受３４ｂをそれぞ
れ、フレーム１１４の上面に設けた３本のエアシリンダ
１１８のロッドの先端に連結する。Further, the frame 114 is erected on the bearing fixing frame 36, and two block-shaped guide bodies 119 each having a guide groove are provided on the wall surface of the frame 114, and the axial direction of the guide body 119 is vertically changed. Bearings 34b that are provided substantially parallel to each other and that support the ends of the shafts of each of the three free pinch rollers 31b are vertically movable along the guide grooves of the guide body 119, and the bearings 34b are respectively provided to the frame 114. Are connected to the tips of rods of three air cylinders 118 provided on the upper surface of the.
【０１０９】したがって、シリンダ１１８の作動によ
り、３本の自在ピンチローラ３１ｂでそれぞれ熱可塑性
樹脂成形品２９を介して固定ピンチローラ３１ａを加圧
し、３本の固定ピンチローラ３１ａの内１本の固定ピン
チローラ３１ａの軸をパウダブレーキ１１５により回転
を抑制し、この固定ピンチローラ３１ａの軸に設けた歯
車１１６が他の２本の固定ピンチローラ３１ａ，３１ａ
の軸に設けた歯車１１６，１１６に歯車１１７，１１７
を介して噛合しているので、３本の固定ピンチローラ３
１ａにはパウダブレーキ１１５の摩擦トルクによる同一
の回転抑制力が作用する。Therefore, by operating the cylinder 118, the fixed pinch roller 31a is pressed by the three free pinch rollers 31b via the thermoplastic resin molding 29, and one of the fixed pinch rollers 31a is fixed. Rotation of the shaft of the pinch roller 31a is suppressed by the powder brake 115, and the gear 116 provided on the shaft of the fixed pinch roller 31a causes the other two fixed pinch rollers 31a, 31a to rotate.
To the gears 116, 116 provided on the shaft of the gears 117, 117
Since they are meshed with each other, the three fixed pinch rollers 3
The same rotation restraining force due to the friction torque of the powder brake 115 acts on 1a.
【０１１０】ちなみに、パウダブレーキ１１５により固
定ピンチローラ３１ａの回転を抑制する摩擦トルクは、
成形する熱可塑性樹脂成形品２９の板厚により調整す
る。By the way, the friction torque for suppressing the rotation of the fixed pinch roller 31a by the powder brake 115 is
It is adjusted by the plate thickness of the thermoplastic resin molded product 29 to be molded.
【０１１１】したがって、パウダブレーキ１１５の摩擦
トルクは熱可塑性樹脂成形品２９の押出し力に対する抑
制力となり、成形ダイ１０の導入室１２内の押出し生地
７９をより一層高密度で均一な状態にし、この均一で高
密度の押出し生地７９は押出機７０による押出し生地７
９の押出し力により前記ブレーキ手段３０の抑制力に抗
して前進し、成形室２２内で冷却され熱可塑性樹脂成形
品２９が成形される。この熱可塑性樹脂成形品２９はパ
ウダブレーキ１１５の抑制力に抗して前記固定ピンチロ
ーラ３１ａ及び自在ピンチローラ３１ｂを回転させなが
ら前進する。Therefore, the friction torque of the powder brake 115 serves as a restraining force against the extrusion force of the thermoplastic resin molded product 29, and makes the extrusion material 79 in the introduction chamber 12 of the molding die 10 more dense and uniform. The uniform and high-density extruded dough 79 is the extruded dough 7 produced by the extruder 70.
The pushing force of 9 moves forward against the restraining force of the braking means 30, cools in the molding chamber 22, and the thermoplastic resin molded product 29 is molded. The thermoplastic resin molded product 29 advances while rotating the fixed pinch roller 31a and the free pinch roller 31b against the restraining force of the powder brake 115.
【０１１２】前記抑制力は熱可塑性樹脂成形品２９を介
して成形室２２及び入口１１内の押出し生地７９に、押
出機により加えられる成形室２２内の押出し生地７９の
押出し力に対して抗力を与えることにより、成形室２２
内の押出し生地７９の全体がより一層密度が均一で高密
度になる。熱可塑性樹脂成形品２９に抑制力を加えてい
ることにより押出し生地７９の密度が高くなるので、ペ
ットボトルの破砕物と他のＰＰ及び／又はＰＥ、又はＰ
ＶＣ等との密着性を高めると共に、熱可塑性樹脂成形品
２９中に気泡、巣等を生じることを防止する。したがっ
て、一層均一高密度な熱可塑性樹脂成形品が成形され
る。The restraining force exerts a resistance against the extruding force of the extruding material 79 in the molding chamber 22 applied by the extruder to the extruding material 79 in the molding chamber 22 and the inlet 11 via the thermoplastic resin molded product 29. By giving, the molding chamber 22
The density of the entire extruded dough 79 inside is even more uniform and higher. Since the density of the extruded material 79 is increased by applying the restraining force to the thermoplastic resin molded product 29, the crushed plastic bottle and other PP and / or PE, or P
The adhesion with VC and the like is improved, and bubbles and cavities are prevented from being formed in the thermoplastic resin molded product 29. Therefore, a more uniform and high-density thermoplastic resin molded product is molded.
【０１１３】[0113]
実施例１ 約０．６mm×０．１mmに破砕したペットボトルの破砕物
５５wt％と、ＰＥ４５wt％を回転数９００rpm の撹拌衝
撃翼を備えた流動混合混練手段内で約２０分間、２２０
℃の温度下で混合・乾燥・混練して得られた混練材料を
粒径６〜７mmに整粒してペレット状と成し、このペレッ
トを単軸押出機のホッパ内に投入して、熱可塑性樹脂成
形品を得た。Example 1 55 wt% of crushed PET bottles crushed to about 0.6 mm × 0.1 mm and 45 wt% of PE were mixed in a fluid mixing and kneading means equipped with a stirring impact blade at a rotation speed of 900 rpm for 220 minutes for 220 minutes.
The kneaded material obtained by mixing, drying, and kneading at a temperature of ℃ is sized to a particle size of 6 to 7 mm to form a pellet, and the pellet is put into the hopper of a single-screw extruder and heated. A plastic resin molded product was obtained.
【０１１４】なお、押出成形の条件は、以下の通りであ
る。The conditions for extrusion molding are as follows.
【０１１５】押出温度２００℃ ダイ温度２３０℃
５０kg／１ｈ 成形室の大きさＬ：１０００mm×Ｗ：５５０mm×Ｈ：１
２mm 以上により、Ｌ：１８２０mm×Ｗ：５５０mm×Ｈ：１２
mmの板状の熱可塑性樹脂成形品を得た。Extrusion temperature 200 ° C. Die temperature 230 ° C.
50kg / 1h Size of molding chamber L: 1000mm × W: 550mm × H: 1
2 mm or more, L: 1820 mm x W: 550 mm x H: 12
A plate-shaped thermoplastic resin molded product having a size of mm was obtained.
【０１１６】実施例２ 約０．２mm×１mmに破砕したペットボトルの破砕物４０
wt％、粒径５０〜２００μ、含有水分量０．１wt％に乾
燥させた木粉１５wt％、ＰＥ４５wt％を回転数９００rp
mの撹拌衝撃翼を備えた流動混合混練手段内で約２０分
間、２２０℃の温度下で混合・乾燥・混練して得られた
混練材料を粒径７mmに整粒してペレット状と成し、この
ペレットを単軸押出機のホッパ内に投入して、押出成形
により天然の木材の風合いを有する熱可塑性樹脂成形品
を得た。Example 2 Crushed object 40 of PET bottle crushed to about 0.2 mm × 1 mm
Wt%, particle size 50-200μ, moisture content 0.1wt%, dried wood powder 15wt%, PE 45wt% rotation speed 900rp
The kneaded material obtained by mixing, drying and kneading at a temperature of 220 ° C. for about 20 minutes in a fluidized mixing and kneading means equipped with a stirring impact blade of m is sized to a particle size of 7 mm to form pellets. Then, the pellets were put into a hopper of a single-screw extruder to obtain a thermoplastic resin molded product having a natural wood texture by extrusion molding.
【０１１７】なお、押出成形の条件は、前記実施例１と
同様である。The conditions for extrusion molding are the same as in Example 1 above.
【０１１８】実施例３ 約０．２mm×１mmに破砕したペットボトルの破砕物４０
wt％、粒径０．８mmに破砕したポリウレタン発泡体１５
wt％、ＰＥ４５wt％を回転数９００rpm の撹拌衝撃翼を
備えた流動混合混練手段内で約２０分間、２２０℃の温
度下で混合・乾燥・混練して得られた混練材料を粒径７
mmに整粒してペレット状と成し、このペレットを押出機
のホッパ内に投入して、熱可塑性樹脂成形品を得た。Example 3 Crushed PET bottle crushed to a size of about 0.2 mm × 1 mm 40
Polyurethane foam 15 crushed to wt% and particle size 0.8mm
The kneaded material obtained by mixing, drying, and kneading wt% and PE45 wt% at a temperature of 220 ° C. for about 20 minutes in a fluid-mixing and kneading means equipped with a stirring impact blade at a rotation speed of 900 rpm has a particle size of 7
The particles were sized to give pellets, and the pellets were put into the hopper of the extruder to obtain a thermoplastic resin molded product.
【０１１９】なお、押出成形の条件は、前記実施例１，
２と同様である。The conditions of the extrusion molding are the same as those in Example 1,
Same as 2.
【０１２０】実施例４ 約０．２mm×０．８mmに破砕したペットボトルの破砕物
３０wt％、粒径０．２〜０．８mmに破砕したポリウレタ
ン発泡体１０wt％、粒径５０〜１５０μ、含有水分量
０．１wt％の木粉１５wt％、ＰＥ４５wt％を回転数９０
０rpm の撹拌衝撃翼を備えた流動混合混練手段内で約２
５分間、２２０℃の温度下で混合・乾燥・混練して得ら
れた混練材料を粒径７mmに整粒してペレット状と成し、
このペレットを押出機のホッパ内に投入して、熱可塑性
樹脂成形品を得た。Example 4 30% by weight of a crushed PET bottle crushed to about 0.2 mm × 0.8 mm, 10% by weight of a polyurethane foam crushed to a particle size of 0.2 to 0.8 mm, and a particle size of 50 to 150 μ were contained. Water content 0.1wt% wood powder 15wt%, PE 45wt% rotation speed 90
Approximately 2 in a fluidized mixing and kneading means equipped with a stirring impact blade of 0 rpm.
The kneaded material obtained by mixing, drying, and kneading at a temperature of 220 ° C. for 5 minutes is sized to a particle size of 7 mm to form a pellet,
The pellets were put into a hopper of an extruder to obtain a thermoplastic resin molded product.
【０１２１】なお、押出成形の条件は、前記実施例１〜
３と同様である。The conditions for extrusion molding are the same as those in Examples 1 to 1 above.
Same as 3.
【０１２２】２．比較結果 以上の１〜４の実施例により製造されたそれぞれの熱可
塑性樹脂成形品と、ペットボトルの破砕物のみを原料と
して、押出成形時の加工条件を前記と同様にして押出成
形して得られた熱可塑性樹脂成形品を比較例としてそれ
ぞれの熱可塑性樹脂成形品の特性を比較した結果を表１
に示す。2. Comparative Results Using only the respective thermoplastic resin molded products manufactured by the above Examples 1 to 4 and the crushed PET bottles as raw materials, extrusion processing was carried out in the same manner as above under the processing conditions at the time of extrusion molding. Table 1 shows the results of comparing the characteristics of the respective thermoplastic resin molded products with the obtained thermoplastic resin molded products as a comparative example.
Shown in
【０１２３】[0123]
【表１】 [Table 1]
【０１２４】以上の結果、本発明方法により、廃棄され
たペットボトルを原料として優れた熱可塑性樹脂成形品
を製造することができた。特に、木粉及び／又はポリウ
レタン発泡体等熱硬化性樹脂発泡体を流動混合混練の際
に加えることにより、熱可塑性樹脂成形品の冷却収縮の
発生を防止でき、また、熱可塑性樹脂成形品の表面サン
ディングが可能となり、接着性、塗装性に優れた熱可塑
性樹脂成形品を得ることが可能となった。As a result of the above, by the method of the present invention, it was possible to produce an excellent thermoplastic resin molded product from a discarded PET bottle as a raw material. In particular, by adding a thermosetting resin foam such as wood powder and / or polyurethane foam during fluid mixing and kneading, it is possible to prevent the occurrence of cooling shrinkage of the thermoplastic resin molded article, and to add the thermoplastic resin molded article. Surface sanding has become possible, and it has become possible to obtain thermoplastic resin molded products with excellent adhesiveness and paintability.
【０１２５】[0125]
【発明の効果】以上説明した本発明の構成により、本発
明は以下の効果を有する。According to the constitution of the present invention described above, the present invention has the following effects.
【０１２６】熱可塑性樹脂成形品にペットボトルの破砕
物を骨材として混入することで、廃棄されたペットボト
ルの有効な再生利用を図ることができると共に、強度、
加工性等に優れた安価な熱可塑性樹脂成形品を得ること
ができた。By mixing the crushed plastic bottle as an aggregate in the thermoplastic resin molded product, it is possible to effectively recycle the discarded plastic bottle and to improve the strength,
It was possible to obtain an inexpensive thermoplastic resin molded product excellent in workability and the like.
【０１２７】また、前記ペットボトルの破砕物を骨材と
した熱可塑性樹脂成形品に木粉及び／又は熱硬化性樹脂
発泡体を混入することにより、成形後の成品の冷却収縮
を生じない本発明の方法により得られた熱可塑性樹脂成
形品は、寸法安定性が良く、また、表面サンディングが
可能で接着性、塗装性に優れている。Further, by mixing wood powder and / or a thermosetting resin foam into a thermoplastic resin molded product using the crushed PET bottle as an aggregate, a product which does not undergo cooling shrinkage of the molded product after molding. The thermoplastic resin molded product obtained by the method of the invention has good dimensional stability, is capable of surface sanding, and is excellent in adhesiveness and paintability.
【０１２８】さらに、本発明の方法により得られた熱可
塑性樹脂成形品は、木粉の混入により熱可塑性樹脂成形
品に木材の風合いを醸しだすことができ、その結果、本
発明の方法により製造された熱可塑性樹脂成形品を天然
の木材に代用して使用することで、従来困難とされてい
た建材等のプラスチック製品との接着を可能とした。Further, the thermoplastic resin molded product obtained by the method of the present invention can give a texture of wood to the thermoplastic resin molded product by mixing wood powder, and as a result, is manufactured by the method of the present invention. By using the above-mentioned thermoplastic resin molded product as a substitute for natural wood, it has become possible to adhere to plastic products such as building materials, which have been considered difficult in the past.
【図１】ペットボトルの破砕・粗砕工程を模式的に示す
処理工程の系統説明図である。FIG. 1 is a system explanatory view of a processing step schematically showing a crushing / coarse crushing step of a PET bottle.
【図２】本発明の実施例に使用するカッタミル（破砕・
粗砕手段）の要部を示す全体斜視図である。FIG. 2 is a cutter mill used in an embodiment of the present invention (crushing
FIG. 3 is an overall perspective view showing a main part of a crushing means).
【図３】本発明の実施例に使用する流動混合混練手段の
要部断面図である。FIG. 3 is a cross-sectional view of essential parts of a fluid mixing and kneading means used in an example of the present invention.
【図４】流動混合混練手段を経て整粒された混練材料中
のペットボトルの破砕物の分散状態を模式的に示した図
である。FIG. 4 is a diagram schematically showing a dispersed state of a crushed material of a PET bottle in a kneading material that has been sized by a fluid mixing and kneading means.
【図５】本発明の実施例に使用する冷却造粒手段の要部
断面図である。FIG. 5 is a cross-sectional view of a main part of a cooling granulating means used in an example of the present invention.
【図６】本発明の実施例に使用する押出機の要部断面を
示す全体正面図である。FIG. 6 is an overall front view showing a cross section of a main part of an extruder used in an example of the present invention.
【図７】図６の矢視Ｊ−Ｊ線の縦断面図である。7 is a vertical sectional view taken along the line JJ of FIG.
【図８】本発明の実施例に使用する成形ダイの横断面図
である。FIG. 8 is a cross-sectional view of a molding die used in an example of the present invention.
【図９】本発明の実施例の成形ダイの金属板（上側）を
省略した平面図である。FIG. 9 is a plan view in which the metal plate (upper side) of the molding die of the embodiment of the present invention is omitted.
【図１０】本発明の実施例のブレーキ手段の要部断面を
示す平面図である。FIG. 10 is a plan view showing a cross section of a main part of the brake means according to the embodiment of the present invention.
【図１１】図１０の矢視Ｎ−Ｎ線縦断面図である。11 is a vertical cross-sectional view taken along the line NN of FIG.
１０ 成形ダイ １１ 入口（成形ダイの） １４ ヒータ １６ スクリーン部 １７ アダプタ １８ 流入口 １９ 押出ダイ ２１ａ 溶融部 ２１ｂ 徐冷部 ２２ 成形室 ２３ ダイ出口 ２４ シート（フッ素樹脂の） ２５ 冷却管 ２６ 金属板（上側） ２７ 金属板（下側） ２８ スペーサ ２９ 熱可塑性樹脂成形品 ３０ ブレーキ手段 ３１ ピンチローラ ３１ａ 固定ピンチローラ ３１ｂ 自在ピンチローラ ３４ａ，３４ｂ 軸受 ３６ 軸受固定フレーム ６０ 破砕片 ６２ 被処理小片（ペットボトルの破砕物） ７０ 押出機 ７１ スクリュー ７２ ギヤ変速機 ７３ ホッパ ７４ バレル ７５ バンドヒータ ７６ スクリーン ７７ アダプタ ７８ 押出ダイ ７９ 押出し生地 ８０ ミキサー（流動混合混練手段） ８１ ミキサー本体 ８２ 上蓋 ８３ 軸 ８４ スクレイパー ８５，８６，８７ 撹拌衝撃翼 ８８ 排出口 ８９ 蓋 ９１ シリンダ ９２ 締付ナット ９３ 排出ダクト ９４ 投入口 ９５ ガス排出管 １００ クーリングミキサー（冷却造粒手段） １０１ ミキサー本体 １０２ ジャケット １０３ アーム １０４ 撹拌破砕翼 １０５ モータ １０６ バルブ １０７ 排出口 １０８ 給水管 １０９ 排水管 １１０ クラッシャ １１１ モータ １１２ 減速装置 １１３ 投入口 １１４ フレーム １１５ パウダブレーキ １１６，１１７ 歯車 １１８ シリンダ １１９ ガイド体 １２０ カッタミル １２１ カッタミル本体 １２２ 蓋 １２３ 投入口 １２４ カッタ支持体 １２５ 回転刃 １２６ 固定刃 １２７ 投入室 １２８ 粗砕室 １２９ スクリーン １３１ 排出口 10 Molding Die 11 Inlet (Molding Die) 14 Heater 16 Screen Part 17 Adapter 18 Inlet 19 Extrusion Die 21a Melting Part 21b Slow Cooling Part 22 Molding Chamber 23 Die Exit 24 Sheet (of Fluorine Resin) 25 Cooling Tube 26 Metal Plate ( Upper side 27 Metal plate (lower side) 28 Spacer 29 Thermoplastic resin molded product 30 Brake means 31 Pinch roller 31a Fixed pinch roller 31b Universal pinch roller 34a, 34b Bearing 36 Bearing fixed frame 60 Crushed piece 62 Treated small piece (of PET bottle) Crushed material) 70 Extruder 71 Screw 72 Gear transmission 73 Hopper 74 Barrel 75 Band heater 76 Screen 77 Adapter 78 Extrusion die 79 Extrusion dough 80 Mixer (fluid mixing and kneading means) 81 Mixer main body 82 Upper lid 83 Shaft 84 Scraper 5,86,87 Stirring impeller 88 Discharge port 89 Lid 91 Cylinder 92 Tightening nut 93 Discharge duct 94 Input port 95 Gas discharge pipe 100 Cooling mixer (cooling granulation means) 101 Mixer body 102 Jacket 103 Arm 104 Stirring blade 105 Motor 106 Valve 107 Discharge port 108 Water supply pipe 109 Drain pipe 110 Crusher 111 Motor 112 Reduction gear 113 Input port 114 Frame 115 Powder brake 116, 117 Gear 118 Cylinder 119 Guide body 120 Cutter mill 121 Cutter mill main body 122 Lid 123 Cutter support body 125 rotary blade 126 fixed blade 127 input chamber 128 coarse crushing chamber 129 screen 131 discharge port
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:26 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B29K 105: 26
Claims (10)
による撹拌の際の摩擦熱により乾燥されたペットボトル
の破砕物３０〜６０wt％と、ポリエチレン及び／又はポ
リプロピレン、又はポリ塩化ビニル４０〜７０wt％を共
に撹拌衝撃翼により混合し、前記混合により発生せしめ
た１９０〜２２０℃の摩擦熱によりゲル化混練し、前記
ゲル化混練した混練材料を冷却して粒径１５mm以下のペ
レット状に整粒してなることを特徴とするペットボトル
を原料とした熱可塑性樹脂合成体。1. 30 to 60 wt% of crushed PET bottle crushed to 1 mm × 1 mm or less and dried by frictional heat during stirring by a stirring impact blade, and polyethylene and / or polypropylene, or polyvinyl chloride 40 to 70 wt% were mixed together by a stirring impact blade, and gelled and kneaded by the friction heat of 190 to 220 ° C. generated by the mixing, and the gelled and kneaded material was cooled to prepare pellets having a particle size of 15 mm or less. A thermoplastic resin composite made from PET bottles, which is characterized by being granulated.
粒径０．２mm〜１．０mmに破砕されたポリウレタン発泡
体等熱硬化性樹脂発泡体を撹拌衝撃翼により撹拌し、前
記撹拌の際の摩擦熱により前記木粉及び／又は熱硬化性
樹脂発泡体を乾燥後、前記木粉及び／又は熱硬化性樹脂
発泡体に、１mm×１mm以下に破砕されたペットボトルの
破砕物を投入して撹拌衝撃翼により撹拌して前記撹拌の
際の摩擦熱によりペットボトルの破砕物を乾燥し、前記
ペットボトルの破砕物３０〜５０wt％、木粉及び／又は
熱硬化性樹脂発泡体それぞれ５〜２５wt％に対してポリ
エチレン及び／又はポリプロピレン、又はポリ塩化ビニ
ル３５〜５５wt％を投入して撹拌衝撃翼により混合し、
前記混合により発生せしめた１９０〜２２０℃の摩擦熱
によりゲル化混練すると共に、前記ゲル化混練した混練
材料を冷却して粒径１５mm以下のペレットに整粒して成
るペットボトルを原料とする熱可塑性樹脂合成体。2. A thermosetting resin foam such as a polyurethane foam crushed to have a particle size of 50 μm to 200 μm and / or a particle size of 0.2 mm to 1.0 mm is agitated by an agitating impeller to obtain the agitation. After drying the wood powder and / or the thermosetting resin foam by frictional heat at the time, throw a crushed PET bottle crushed into 1 mm x 1 mm or less into the wood powder and / or the thermosetting resin foam. Then, the crushed material of the PET bottle is dried by the friction heat during the stirring and stirred by the stirring impact blade, and the crushed material of the PET bottle is 30 to 50 wt%, wood powder and / or thermosetting resin foam 5 each. Polyethylene and / or polypropylene or polyvinyl chloride 35-55 wt% is added to -25 wt% and mixed by a stirring impact blade,
Heat from a PET bottle as a raw material, which is produced by friction heat of 190 to 220 ° C. generated by the mixing, gelling and kneading, and cooling the gelling and kneading material to form pellets having a particle diameter of 15 mm or less. Plastic resin composite.
wt％迄乾燥されることを特徴とする請求項２記載のペッ
トボトルを原料とした熱可塑性樹脂合成体。3. The wood flour has a water content of 0.1 to 0.3.
The thermoplastic resin composite made from a plastic bottle according to claim 2, which is dried up to wt%.
下に破砕する工程と、前記ペットボトルの破砕物を撹拌
衝撃翼により撹拌して撹拌の際の摩擦熱により乾燥させ
る工程と、 前記乾燥したペットボトルの破砕物３０〜６０wt％と、
ポリエチレン及び／又はポリプロピレン、又はポリ塩化
ビニル４０〜７０wt％を共に撹拌衝撃翼により混合し、
前記混合により発生せしめた１９０〜２２０℃の摩擦熱
によりゲル化混練する工程と、 前記ゲル化混練した混練材料を冷却後、粒径１５mm以下
のペレット状に整粒する工程を含むことを特徴とするペ
ットボトルを原料とした熱可塑性樹脂合成体の製造方
法。4. A step of crushing the recovered PET bottle into 1 mm × 1 mm or less, a step of stirring the crushed material of the PET bottle with a stirring impact blade and drying by frictional heat during stirring, and the above-mentioned drying. 30-60 wt% of crushed plastic bottles,
Polyethylene and / or polypropylene, or polyvinyl chloride 40-70 wt% are mixed together by a stirring impact blade,
And a step of gelling and kneading by frictional heat of 190 to 220 ° C. generated by the mixing, and a step of cooling the gelling and kneading material and then sizing it into pellets having a particle diameter of 15 mm or less. A method for producing a thermoplastic resin composite using a PET bottle as a raw material.
粒径０．２mm〜１．０mmに破砕されたポリウレタン発泡
体等熱硬化性樹脂発泡体を撹拌衝撃翼により撹拌し、前
記撹拌の際の摩擦熱により前記木粉及び／又は熱硬化性
樹脂発泡体を乾燥させる工程と、 前記乾燥された木粉及び／又は熱硬化性樹脂発泡体中
に、１mm×１mm以下に破砕されたペットボトルの破砕物
を投入し、撹拌衝撃翼により撹拌し、前記撹拌の際の摩
擦熱によりペットボトルの破砕物を乾燥させる工程と、 前記ペットボトルの破砕物３０〜５０wt％、木粉及び／
又は熱硬化性樹脂発泡体それぞれ５〜２５wt％に対して
ポリエチレン及び／又はポリプロピレン、又はポリ塩化
ビニル３５〜５５wt％を投入して撹拌衝撃翼により混合
し、前記混合により発生せしめた１９０〜２２０℃の摩
擦熱によりゲル化混練する工程と、 前記ゲル化混練した混練材料を冷却して粒径１５mm以下
のペレット状に整粒する工程を含むことを特徴とするペ
ットボトルを原料とする熱可塑性樹脂合成体の製造方
法。5. A thermosetting resin foam, such as a polyurethane foam crushed to have a particle size of 50 μm to 200 μm and / or a particle size of 0.2 mm to 1.0 mm, is agitated by an agitating impeller to obtain the agitated material. A step of drying the wood powder and / or the thermosetting resin foam by frictional heat at the time, and a pet crushed into 1 mm × 1 mm or less in the dried wood powder and / or the thermosetting resin foam A step of charging the crushed material of the bottle, stirring with a stirring impact blade, and drying the crushed material of the PET bottle by frictional heat during the stirring, 30 to 50 wt% of the crushed material of the PET bottle, wood flour and /
Alternatively, 35 to 55 wt% of polyethylene and / or polypropylene or polyvinyl chloride is added to 5 to 25 wt% of each of the thermosetting resin foams and mixed by a stirring impact blade, and the mixture is generated at 190 to 220 ° C. And a step of cooling the gelled and kneaded material by granulation by frictional heat, and sizing the gelled and kneaded material into pellets having a particle diameter of 15 mm or less. Method for producing synthetic body.
wt％迄乾燥されることを特徴とする請求項５記載のペッ
トボトルを原料とした熱可塑性樹脂合成体の製造方法。6. The wood flour has a water content of 0.1 to 0.3.
The method for producing a thermoplastic resin composite using a PET bottle as a raw material according to claim 5, which is dried up to wt%.
性樹脂合成体を１８０℃〜２３５℃で加熱・練成した押
出し生地を成形ダイへ押出し、前記押出し生地を成形ダ
イ内で徐冷・硬化したことを特徴とするペットボトルを
原料とした熱可塑性樹脂成形品。7. The extruded dough obtained by heating and kneading the thermoplastic resin composite according to claim 1 at 180 ° C. to 235 ° C. is extruded into a forming die, and the extruded dough is gradually held in the forming die. Thermoplastic resin molded products made from PET bottles that are cold and hardened.
より熱可塑性樹脂合成体を製造した後、前記熱可塑性樹
脂合成体を１８０℃〜２３５℃で加熱・練成した押出し
生地を成形ダイへ押出し、前記押出し生地を成形ダイ内
で徐冷・硬化することを特徴とするペットボトルを原料
とした熱可塑性樹脂成形品の製造方法。8. A thermoplastic resin composite is produced by the method according to any one of claims 4 to 6, and the thermoplastic resin composite is heated and kneaded at 180 ° C. to 235 ° C. to form an extruded dough. A method for producing a thermoplastic resin molded product using a PET bottle as a raw material, which comprises extruding into a die and gradually cooling and hardening the extruded material in a molding die.
シートを貼設又はフッ素樹脂をコーティングした成形室
を備え、前記成形室は２３０〜２４５℃に加熱された溶
融部と、冷却手段により冷却された徐冷部から成り、成
形ダイ内に押し出された押出し生地を前記溶融部を通過
後徐冷部で冷却・硬化し、且つ、この押出し生地に押出
し力に抗する抑制力を加えて押出し生地の密度を高くし
てなることを特徴とする請求項７記載の熱可塑性樹脂成
形品。9. The molding die includes a molding chamber in which a fluororesin sheet is attached or coated with a fluororesin on the inner wall surface, and the molding chamber comprises a melting part heated to 230 to 245 ° C. and a cooling means. The extruded dough extruded in the forming die is cooled and hardened in the slowly cooled part after passing through the melting part, and the extruded dough is restrained against the extruding force. The thermoplastic resin molded article according to claim 7, wherein the extruded material has a high density.
のシートを貼設又はフッ素樹脂をコーティングした成形
室を備え、前記成形室は２３０〜２４５℃に加熱された
溶融部と、冷却手段により冷却された徐冷部を備え、成
形ダイ内に押し出された押出し生地を前記溶融部を通過
後徐冷部で冷却・硬化し、且つ、この押出し生地に押出
し力に抗する抑制力を加えて押出し生地の密度を高くし
てなることを特徴とする請求項８記載の熱可塑性樹脂成
形品の製造方法。10. The molding die includes a molding chamber in which a fluororesin sheet is stuck or coated on the inner wall surface of the molding die, and the molding chamber comprises a melting part heated to 230 to 245 ° C. and a cooling means. Equipped with a cooled slow cooling part, the extruded dough extruded into the molding die is cooled and hardened in the slow cooling part after passing through the melting part, and a suppressing force against the extruding force is added to the extruded dough. The method for producing a thermoplastic resin molded article according to claim 8, wherein the extruded material has a high density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28888195A JPH09123169A (en) | 1995-11-07 | 1995-11-07 | Thermoplastic resin synthetic material with plastic bottle as material, manufacture thereof, thermoplastic resin molding using the material and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28888195A JPH09123169A (en) | 1995-11-07 | 1995-11-07 | Thermoplastic resin synthetic material with plastic bottle as material, manufacture thereof, thermoplastic resin molding using the material and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09123169A true JPH09123169A (en) | 1997-05-13 |
Family
ID=17735982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28888195A Ceased JPH09123169A (en) | 1995-11-07 | 1995-11-07 | Thermoplastic resin synthetic material with plastic bottle as material, manufacture thereof, thermoplastic resin molding using the material and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09123169A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10323831A (en) * | 1997-05-26 | 1998-12-08 | Diafoil Co Ltd | Production of polyester composition |
| JPH1170588A (en) * | 1997-08-29 | 1999-03-16 | Ykk Corp | Manufacture of part for regenerated synthetic resin slide fastener |
| JP2000185321A (en) * | 1998-10-15 | 2000-07-04 | Idemitsu Petrochem Co Ltd | Fine polyurethane powder, resin composition blended with this powder, material for leatherlike article and high-frequency welder fabrication material |
| JP2001038728A (en) * | 1999-07-28 | 2001-02-13 | Hagihara Industries Inc | Regenerated pallet manufacturing device |
| AT411161B (en) * | 1999-09-22 | 2003-10-27 | Bacher Helmut | METHOD AND DEVICE FOR RECYCLING PET GOODS |
| JP2004113385A (en) * | 2002-09-25 | 2004-04-15 | Kanegafuchi Chem Ind Co Ltd | Production method of recycled tile carpet from waste material |
| KR100788334B1 (en) * | 2007-01-19 | 2007-12-27 | 이종욱 | The restoring method of waste polyvinyl chloride |
| JP2011104948A (en) * | 2009-11-20 | 2011-06-02 | Wpc Corporation Kk | Additive material for synthetic wood, method of manufacturing the same, molding material for synthetic wood containing the additive material and synthetic wood |
| EP2668105B1 (en) | 2011-01-25 | 2015-05-06 | The Procter&Gamble Company | Sustainable packaging for consumer products |
-
1995
- 1995-11-07 JP JP28888195A patent/JPH09123169A/en not_active Ceased
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10323831A (en) * | 1997-05-26 | 1998-12-08 | Diafoil Co Ltd | Production of polyester composition |
| JPH1170588A (en) * | 1997-08-29 | 1999-03-16 | Ykk Corp | Manufacture of part for regenerated synthetic resin slide fastener |
| JP2000185321A (en) * | 1998-10-15 | 2000-07-04 | Idemitsu Petrochem Co Ltd | Fine polyurethane powder, resin composition blended with this powder, material for leatherlike article and high-frequency welder fabrication material |
| JP2001038728A (en) * | 1999-07-28 | 2001-02-13 | Hagihara Industries Inc | Regenerated pallet manufacturing device |
| AT411161B (en) * | 1999-09-22 | 2003-10-27 | Bacher Helmut | METHOD AND DEVICE FOR RECYCLING PET GOODS |
| JP2004113385A (en) * | 2002-09-25 | 2004-04-15 | Kanegafuchi Chem Ind Co Ltd | Production method of recycled tile carpet from waste material |
| KR100788334B1 (en) * | 2007-01-19 | 2007-12-27 | 이종욱 | The restoring method of waste polyvinyl chloride |
| WO2008088138A1 (en) * | 2007-01-19 | 2008-07-24 | Jong-Uk Lee | The restoring method of waste polyvinyl chloride |
| JP2011104948A (en) * | 2009-11-20 | 2011-06-02 | Wpc Corporation Kk | Additive material for synthetic wood, method of manufacturing the same, molding material for synthetic wood containing the additive material and synthetic wood |
| EP2668105B1 (en) | 2011-01-25 | 2015-05-06 | The Procter&Gamble Company | Sustainable packaging for consumer products |
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