JPH02212558A - Filamentous intermediate material for thermoplastic resin molding material, molding material prepared therefrom, and preparation of the same intermediate material - Google Patents
Filamentous intermediate material for thermoplastic resin molding material, molding material prepared therefrom, and preparation of the same intermediate materialInfo
- Publication number
- JPH02212558A JPH02212558A JP1032222A JP3222289A JPH02212558A JP H02212558 A JPH02212558 A JP H02212558A JP 1032222 A JP1032222 A JP 1032222A JP 3222289 A JP3222289 A JP 3222289A JP H02212558 A JPH02212558 A JP H02212558A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- fiber bundle
- fiber
- intermediate material
- bundle
- 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.)
- Granted
Links
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 84
- 239000000463 material Substances 0.000 title claims abstract description 56
- 239000012778 molding material Substances 0.000 title claims description 29
- 238000002360 preparation method Methods 0.000 title 1
- 239000000835 fiber Substances 0.000 claims abstract description 125
- 239000002245 particle Substances 0.000 claims abstract description 60
- 239000000945 filler Substances 0.000 claims abstract description 41
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 20
- 239000011162 core material Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000000088 plastic resin Substances 0.000 claims description 2
- 239000007924 injection Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 6
- 238000010348 incorporation Methods 0.000 abstract 1
- 239000008188 pellet Substances 0.000 description 30
- 229920005989 resin Polymers 0.000 description 18
- 239000011347 resin Substances 0.000 description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 16
- 239000000843 powder Substances 0.000 description 14
- 238000002156 mixing Methods 0.000 description 13
- -1 polytetrafluoroethylene Polymers 0.000 description 13
- 239000004734 Polyphenylene sulfide Substances 0.000 description 11
- 229920000069 polyphenylene sulfide Polymers 0.000 description 11
- 229920000049 Carbon (fiber) Polymers 0.000 description 10
- 239000004917 carbon fiber Substances 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 10
- 229920002292 Nylon 6 Polymers 0.000 description 9
- 229920000728 polyester Polymers 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 239000004952 Polyamide Substances 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920002647 polyamide Polymers 0.000 description 6
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 5
- 229920000299 Nylon 12 Polymers 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- 229920000577 Nylon 6/66 Polymers 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 239000004962 Polyamide-imide Substances 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 3
- 239000004697 Polyetherimide Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- TZYHIGCKINZLPD-UHFFFAOYSA-N azepan-2-one;hexane-1,6-diamine;hexanedioic acid Chemical compound NCCCCCCN.O=C1CCCCCN1.OC(=O)CCCCC(O)=O TZYHIGCKINZLPD-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 229920002312 polyamide-imide Polymers 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 229920006393 polyether sulfone Polymers 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 229920001601 polyetherimide Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 241000220259 Raphanus Species 0.000 description 1
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- PBAYDYUZOSNJGU-UHFFFAOYSA-N chelidonic acid Natural products OC(=O)C1=CC(=O)C=C(C(O)=O)O1 PBAYDYUZOSNJGU-UHFFFAOYSA-N 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012765 fibrous filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、熱可塑性樹脂成形材料の製造に有用な糸状中
間材及びそれからの熱可塑性樹脂成形材料並びに該中間
材の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a filamentous intermediate material useful for producing a thermoplastic resin molding material, a thermoplastic resin molding material therefrom, and a method for producing the intermediate material.
従来、（＃ａ維強化）熱可塑性樹脂成形品に導電性、摺
動性、耐摩耗性、静電防止性等の機能を付するために、
熱可塑性樹脂に充填材粒子、場合により更に補強用短繊
維を混合、混練して、熱可塑性樹脂中に充填材粒子、場
合により更に補強用短繊維を均一に分散させたベレット
を製造して成形材料とし、これを射出成形して成形品を
得ていた。Conventionally, in order to add functions such as conductivity, sliding properties, abrasion resistance, and antistatic properties to (#a fiber reinforced) thermoplastic resin molded products,
Mixing and kneading thermoplastic resin with filler particles and optionally reinforcing short fibers to produce and mold pellets in which filler particles and optionally reinforcing short fibers are uniformly dispersed in the thermoplastic resin. This was used as a material and injection molded to obtain molded products.
たゾこのような成形材料には、充填材の配合量を増加す
ると混線が困難になるため、充填材を３０〜４０容量ご
程度までしか配合できないという欠点があり、更に繊維
強化熱可塑性樹脂成形材料の場合には、混線処理におい
て、補強用短繊維が切断されて、繊維補強効果が低下す
るという欠点があった。This type of molding material has the disadvantage that it is difficult to mix wires when the amount of filler is increased, so the filler can only be added to a volume of 30 to 40. Furthermore, fiber-reinforced thermoplastic resin molding In the case of materials, there is a drawback that reinforcing short fibers are cut in the cross-wire treatment, resulting in a decrease in the fiber reinforcing effect.
このような欠点を解決するために１例えば繊維状の導電
性フィラーを集束したものを、 ＳＯＳブロック系エラ
ストマーで被覆し、これを切断して熱可塑性樹脂と混合
した導電性プラスチック成形材料（特開昭６０−２４３
１２８号公報）や表面に有機リン化合物層を有する長繊
維状導電性充填材を束ねた表面に合成樹脂層を被覆形成
一体化し、ペレット状に切断してなるマスターペレット
と、ペレット状の合成樹脂からなるナチュラルペレット
とを主成分とする導電性成形材料（特開昭６０−１９２
７６２号公報）等が提案されている。In order to solve these drawbacks, 1. For example, a bundle of fibrous conductive fillers is coated with an SOS block elastomer, which is then cut and mixed with a thermoplastic resin to produce a conductive plastic molding material (Unexamined Japanese Patent Publication No. Showa 60-243
128 Publication) or a long fiber conductive filler having an organic phosphorus compound layer on the surface, a synthetic resin layer is formed integrally on the surface, and the master pellet is cut into pellets, and a pellet-shaped synthetic resin. Conductive molding material containing natural pellets as main component
No. 762), etc. have been proposed.
ところが、このような長繊維状充填材を使用する成形材
料には、充填材の種類によっては、長繊維状のものが入
手困難であったり、あるいは高価であったりするという
欠点がある。However, molding materials using such long fiber fillers have the drawback that long fiber fillers are difficult to obtain or are expensive, depending on the type of filler.
従って本発明は、充填材として粒子状のものを使用し、
しかも強いて混線処理を必要とせず、熱可塑性樹脂と充
填材及び場合により補強用繊維との混合割合を任意に定
量的に且つ均一に調整できると共に、容易に射出成形す
ることができて、導電性、摺動性、耐摩耗性、静電防止
性、電磁波遮閉性等の機能的物性及び機械的強度、寸法
安定性等の機械的物性に優れた成形品を得ることができ
る成形材料及びそれに使用する糸状中間材とその製造方
法を提供することを目的とする。Therefore, the present invention uses a particulate material as a filler,
Moreover, there is no need for cross-wire treatment, the mixing ratio of the thermoplastic resin, filler, and reinforcing fibers can be arbitrarily adjusted quantitatively and uniformly, and it can be easily injection molded, making it conductive. , a molding material capable of obtaining a molded product with excellent functional properties such as sliding properties, abrasion resistance, antistatic properties, and electromagnetic shielding properties, and mechanical properties such as mechanical strength and dimensional stability, and its use therein. The purpose of the present invention is to provide a thread-like intermediate material and a method for manufacturing the same.
本発明によれば、充填材粒子を包含してなる熱可塑性樹
脂繊維束又は熱可塑性樹脂繊維／補強用繊維混合繊維束
を芯材とし、その周囲に熱可塑性樹脂からなる柔軟なス
リーブを設けたことを特徴とする熱可塑性樹脂成形材料
用の糸状中間材が提供され、また該糸状中間材を切断し
、これを熱可塑性樹脂と混合したことを特徴とする熱可
塑性樹脂成形材料が提供され、更にエアージェットで熱
可塑性樹脂繊維束又は熱可塑性樹脂繊維／補強用繊維混
合繊維束を解繊した後、該繊維束中に充填材粒子を包含
させ、得られた粒子包含繊維束を熱可塑性樹脂で被覆し
て該繊維束の周囲にスリーブを形成させることを特徴と
する熱可塑性樹脂成形材料用の糸状中間材の製造方法が
提供される。According to the present invention, a thermoplastic resin fiber bundle containing filler particles or a thermoplastic resin fiber/reinforcing fiber mixed fiber bundle is used as a core material, and a flexible sleeve made of a thermoplastic resin is provided around the core material. A thread-like intermediate material for a thermoplastic resin molding material is provided, and a thermoplastic resin molding material is provided, which is characterized in that the thread-like intermediate material is cut and mixed with a thermoplastic resin. Furthermore, after defibrating the thermoplastic resin fiber bundle or the thermoplastic resin fiber/reinforcing fiber mixed fiber bundle with an air jet, filler particles are included in the fiber bundle, and the resulting particle-containing fiber bundle is injected with thermoplastic resin. Provided is a method for producing a thread-like intermediate material for a thermoplastic resin molding material, which comprises coating the fiber bundle with a fiber bundle to form a sleeve around the fiber bundle.
本発明の熱可塑性樹脂成形材料用の糸状中間材は、充填
材粒子を包含する熱可塑性樹脂繊維束又は熱可塑性樹脂
繊維／補強用繊維混合繊維束の周囲に熱可塑性樹脂から
なるスリーブを設けた構成としたことにより、熱可塑性
樹脂（繊維及びスリーブ）と充填材粒子及び場合により
補強用繊維との割合を広範囲に定量的に設定することが
でき、且つ均一性に優れたものである。また、この糸状
中間材を切断して、これを熱可塑性樹脂と混合すること
によって、強いて混練処理することなしに、所望の割合
で、熱可塑性樹脂中に充填材及び場合により補強用繊維
を均一に分散した、射出成形性の良好な本発明の成形材
料が得られ、該成形材料からは、射出成形によって、容
易に導電性、摺動性、耐摩耗性、静電防止性、電磁波遮
閉性等の機能的物性及び機械的強度、寸法安定性等の機
械的物性に優れた成形品が得られる。The thread-like intermediate material for a thermoplastic resin molding material of the present invention includes a sleeve made of a thermoplastic resin surrounding a thermoplastic resin fiber bundle containing filler particles or a thermoplastic resin fiber/reinforcing fiber mixed fiber bundle. By adopting this structure, the ratio of the thermoplastic resin (fibers and sleeve) to the filler particles and optionally the reinforcing fibers can be set quantitatively over a wide range, and has excellent uniformity. In addition, by cutting this thread-like intermediate material and mixing it with the thermoplastic resin, it is possible to uniformly distribute the filler and reinforcing fibers in the thermoplastic resin at the desired ratio without any forced kneading treatment. The molding material of the present invention, which has good injection moldability and is dispersed in A molded article with excellent functional properties such as mechanical properties such as mechanical strength and dimensional stability can be obtained.
なお１本発明者らは先に、不活性超微粉末を補強用繊維
含有量に基いて約０．Ｏｌ−約１０容量％包含してなる
補強用繊維束を芯材とし、その周囲に熱可塑性樹脂から
なる柔軟なスリーブを設けたことを特徴とする熱可塑性
複合材料用のプリフォームヤーン（特願昭６２−２０２
７６１号）を提案したが１本発明の糸状中間材は、熱可
塑性樹脂繊維束ないし該繊維を含有する混合繊維束を芯
材とする点において、補強用繊維束を芯材とする上記プ
リフォームヤーンとは異なったものである。Note that the present inventors previously prepared an inert ultrafine powder with a content of about 0.0% based on the reinforcing fiber content. A preform yarn for thermoplastic composite materials (patent application Showa 62-202
No. 761), but in that the filamentous intermediate material of the present invention uses a thermoplastic resin fiber bundle or a mixed fiber bundle containing the fibers as a core material, it can be applied to the above-mentioned preform having a reinforcing fiber bundle as a core material. It is different from yarn.
先ず、本発明の熱可塑性樹脂成形材料用の糸状中間材に
ついて、詳細に説明する。First, the thread-like intermediate material for thermoplastic resin molding material of the present invention will be explained in detail.
本発明の糸状中間材において、芯材として使用される熱
可塑性樹脂繊維束又は熱可塑性樹脂繊維／補強用繊維混
合繊維束は、充填材粒子を包含するが、該粒子は上記繊
維間に浸透していて、該繊維をゆるく解繊した状態に保
持する。従って、該粒子は樹脂（繊維及びスリーブ）中
に均一に分散された形態を形成しており、該中間材から
成形材料を調製する際、該粒子は混合樹脂中に容易に均
゛−に分散される。In the filamentous intermediate material of the present invention, the thermoplastic resin fiber bundle or the thermoplastic resin fiber/reinforcing fiber mixed fiber bundle used as the core material includes filler particles, and the particles penetrate between the fibers. The fibers are held in a loosely defibrated state. Therefore, the particles form a uniformly dispersed form in the resin (fibers and sleeves), and when a molding material is prepared from the intermediate material, the particles are easily and uniformly dispersed in the mixed resin. be done.
充填材粒子が繊維束の繊維間に効率良く浸透するために
は、該粒子の粒径は約１ｍｍ以下であることが好ましく
、特に約０．０１〜約１５−の範囲が好ましい。In order for the filler particles to efficiently penetrate between the fibers of the fiber bundle, the particle size of the particles is preferably about 1 mm or less, particularly preferably in the range of about 0.01 to about 15 mm.
また、充填材粒子の繊維束中の包含量は、中間材基準で
約５〜約９０容量算の範囲内で任意に選択され、約１０
−約８０容量％の範囲が好ましい、該粒子の包含量が約
９０容量％を超過すると、スリーブの被覆が困難になっ
たり、スリーブの破裂が発生したりすることがあり、ま
た逆に約５容量％未満では。Further, the amount of filler particles included in the fiber bundle is arbitrarily selected within the range of about 5 to about 90 volume calculations based on the intermediate material, and about 10
- preferably in the range of about 80% by volume; if the inclusion amount of the particles exceeds about 90% by volume, it may become difficult to coat the sleeve or cause rupture of the sleeve; In less than % capacity.
充分な機能的物性及び（又は）機械的物性を有する成形
品が得られない。Molded articles with sufficient functional and/or mechanical properties cannot be obtained.
本発明において用いられる充填材粒子は１例えば導電性
、摺動性、耐摩耗性、静電防止性、電磁波連間性等の機
能及び機械的強度、寸法安定性等零の特性を成形体に付
与するためのものであり、その具体例としては、カーボ
ンブラック、黒鉛、活性炭等の炭素類の粉末５ガラス粉
末、タルク、ワラストナイト、カオリン、焼成カオリン
、炭酸カルシウム、硅酸カルシウム等の無機系化合物の
粉末；アルミナ、シリカアルミナ、酸化チタン等の酸化
物類の粉末；アルミニウム、鉄、綱、ニッケル、亜鉛、
錫若しくはそれらの合金等の金属類の粉末；ポリテトラ
フルオロエチレン等の有機系の粉末等が挙げられる。The filler particles used in the present invention provide functions such as conductivity, sliding properties, abrasion resistance, antistatic properties, and electromagnetic wave connectivity, as well as properties such as mechanical strength and dimensional stability to the molded body. Specific examples include carbon powders such as carbon black, graphite, and activated carbon, glass powders, talc, wollastonite, kaolin, calcined kaolin, calcium carbonate, calcium silicate, and other inorganic powders. Powders of oxides such as alumina, silica alumina, and titanium oxide; aluminum, iron, steel, nickel, zinc,
Examples include metal powders such as tin or alloys thereof; organic powders such as polytetrafluoroethylene;
本発明の糸状中間材で用いられる熱可塑性樹脂繊維は、
成形材料の後加工における成形温度で完全に溶融する樹
脂繊維であり、例えばポリケミド。The thermoplastic resin fiber used in the filamentous intermediate material of the present invention is
A resin fiber that completely melts at the molding temperature during post-processing of the molding material, such as polychemide.
ポリエステル、ポリエチレン、ポリプロピレン、ポリス
チレン、ポリ弗化ビニリデン、ポリアミドイミド、ポリ
イミド、ポリエーテルイミド、ポリエーテルスルホン、
ポリエーテルエーテルケトン、ポリフェニレンサルファ
イド等のポリマーの繊維が挙げられる。更に具体的には
、ポリアミド繊維としては、ナイロン６６、ナイロン６
、ナイロン１２゜ナイロン６／６６／１２ターポリマー
のようなホモ又はコポリマーから得られる繊維が用いら
れ、またポリエステル繊維としては、ポリエチレンテレ
フタレート、ポリブチレンテレフタレート、ポリエチレ
ン−２，６−ナフタレート、ポリオキシエトキシベンゾ
エート、全芳香族ポリエステル等のホモポリマー又はこ
れらのコポリマーから得られる繊維が用いられる。Polyester, polyethylene, polypropylene, polystyrene, polyvinylidene fluoride, polyamideimide, polyimide, polyetherimide, polyethersulfone,
Examples include fibers of polymers such as polyetheretherketone and polyphenylene sulfide. More specifically, the polyamide fibers include nylon 66 and nylon 6.
, nylon 12°, nylon 6/66/12 terpolymer, and polyester fibers such as polyethylene terephthalate, polybutylene terephthalate, polyethylene-2,6-naphthalate, polyoxyethoxy Fibers obtained from homopolymers such as benzoate, wholly aromatic polyesters, or copolymers thereof are used.
なお、熱可塑性樹脂繊維束は、−数的にはフィラメント
のデニール数が、約０．１〜約２，０００の範囲内で、
フィラメント数が約１〜約５００のもの、特にフィラメ
ントのデニール数が約１〜約５００で、フィラメント数
が約１〜約１００のものが好ましい。In addition, the thermoplastic resin fiber bundle has a denier number of filaments in the range of about 0.1 to about 2,000,
Preferably, the number of filaments is from about 1 to about 500, particularly when the denier of the filaments is from about 1 to about 500, and the number of filaments is from about 1 to about 100.
また、本発明において、繊維強化熱可慎性樹脂成形材料
を得る場合には、糸状中間材の芯材として熱可塑性樹脂
繊維／補強用繊維混合繊維束が用いられるが、この場合
の補強用繊維としては、炭素繊維、ガラス繊維、ポリア
ミド繊維（アラミド繊維）、ボロン繊維、セラミック繊
維及び金属繊維等がある。Furthermore, in the present invention, when obtaining a fiber-reinforced thermoplastic resin molding material, a mixed fiber bundle of thermoplastic resin fiber/reinforcing fiber is used as the core material of the filamentous intermediate material. Examples include carbon fiber, glass fiber, polyamide fiber (aramid fiber), boron fiber, ceramic fiber, and metal fiber.
炭素繊維としては１石油ピッチ若しくはコールタールピ
ッチを原料とし、紡糸用ピッチの調整、溶融紡糸、不融
化及び炭素化して得られるピッチ系炭素繊維並びにアク
リロニトリル（共）重合体繊維を耐炎化及び炭素化して
得られるＰＡＮ系炭素炭素繊維れも好適に用いられる。As carbon fibers, we use petroleum pitch or coal tar pitch as a raw material, adjust the spinning pitch, melt spin, infusible, and carbonize pitch-based carbon fibers and acrylonitrile (co)polymer fibers, which are flame-resistant and carbonized. PAN-based carbon fibers obtained by the above method are also suitably used.
また、ガラス繊維としては、非ストランド化ガラス繊維
、ストランド化ガラス繊維及びストランド化ガラス繊維
トウ等の何れも使用される。なお、セラミック繊維とし
ては、炭化珪素繊維、窒化珪素繊維、窒化硼素繊維、ア
ルミナ繊維等が挙げられる。Further, as the glass fiber, any of non-stranded glass fiber, stranded glass fiber, and stranded glass fiber tow can be used. Note that examples of the ceramic fiber include silicon carbide fiber, silicon nitride fiber, boron nitride fiber, and alumina fiber.
また、糸状中間材で用いる補強用繊維束は、フィラメン
トのデニール数が約０．０５〜約６００の範囲内で、フ
ィラメント数が約５０〜３００，０００のもの、特にフ
ィラメントのデニール数が約０．２５〜約１６で、フィ
ラメント数が約１００〜約４８ 、０００のものが好ま
しい。In addition, the reinforcing fiber bundle used in the thread-like intermediate material has a filament denier of about 0.05 to about 600, with a filament number of about 50 to 300,000, especially one with a filament denier of about 0. .25 to about 16 filaments, with a filament count of about 100 to about 48,000.
なお、この混合繊維束における熱可塑性樹脂繊維と補強
用繊維の使用割合（容量比）は、５：９５〜９５：５の
範囲内で任意に選択することができる。In addition, the usage ratio (volume ratio) of the thermoplastic resin fiber and the reinforcing fiber in this mixed fiber bundle can be arbitrarily selected within the range of 5:95 to 95:5.
糸状中間材においては、前記繊維束の周囲に熱可塑性樹
脂からなる柔軟な被覆（即ちスリーブ）が設けられるが
、このスリーブの肉厚は一般的には、約５〜約１，００
０．ｃｍとするのが良く、特に約ｌＯ〜約３００−とす
るのが好ましい、スリーブの肉厚が約５／Ｊ１ｍ未満で
は均一なスリーブの形成が困難となるので好ましくなく
、逆に約１，０００ｐｍを超えると該中間材の柔軟性が
損なわれる。In the thread-like intermediate material, a flexible coating (i.e., a sleeve) made of thermoplastic resin is provided around the fiber bundle, and the wall thickness of this sleeve is generally about 5 to about 1,000 mm.
0. cm, particularly preferably from about 10 to about 300 cm. If the sleeve thickness is less than about 5/J1 m, it will be difficult to form a uniform sleeve, so it is not preferable; on the contrary, about 1,000 pm If it exceeds this, the flexibility of the intermediate material will be impaired.
糸状中間材において、柔軟なスリーブ形成材として用い
る熱可塑性樹脂は、成形材料の後加工における成形温度
で完全に溶解する樹脂であり１例えばポリアミド、ポリ
エステル、ポリエチレン、ポリプロピレン、ポリスチレ
ン、ポリ弗化ビニリデン、ポリアミドイミド、ポリイミ
ド、ポリエーテルイミド、ポリエーテルスルホン、ポリ
エーテルエーテルケトン、ポリフェニレンサルファイド
等のポリマーが挙げられる。更に具体的には、ポリアミ
ドとしては、ナイロン６６、ナイロン６、ナイロン１２
．ナイロン６／６６／１２ターポリマーのようなホモ又
はコポリマーが用いられ、またポリエステルとしては、
ポリエチレンテレフタレート、ポリブチレンテレフタレ
ート、ポリエチレン−２，６−ナフタレート、ポリオキ
シエトキシベンゾエート、全芳香族ポリエステル等のホ
モポリマー又はこれらのコポリマーが用いられる。In the thread-like intermediate material, the thermoplastic resin used as the flexible sleeve-forming material is a resin that completely melts at the molding temperature in the post-processing of the molding material. Examples include polyamide, polyester, polyethylene, polypropylene, polystyrene, polyvinylidene fluoride, Examples include polymers such as polyamideimide, polyimide, polyetherimide, polyethersulfone, polyetheretherketone, and polyphenylene sulfide. More specifically, the polyamides include nylon 66, nylon 6, and nylon 12.
．． Homo or copolymers such as nylon 6/66/12 terpolymers are used, and as polyesters,
Homopolymers such as polyethylene terephthalate, polybutylene terephthalate, polyethylene-2,6-naphthalate, polyoxyethoxybenzoate, wholly aromatic polyester, or copolymers thereof are used.
なお、スリーブ形成材として用いる熱可塑性樹脂として
は、熱可塑性樹脂繊維を構成する熱可塑性樹脂と同一の
ものであってもよいし、また、異種のものであってもよ
い。The thermoplastic resin used as the sleeve forming material may be the same as the thermoplastic resin constituting the thermoplastic resin fibers, or may be a different type of thermoplastic resin.
次に、本発明の熱可塑性樹脂成形材料用の糸状中間材の
製造方法について説明する。Next, a method for producing a filamentous intermediate material for a thermoplastic resin molding material according to the present invention will be explained.
本発明の糸状中間材の製造方法は、エアージェットで熱
可塑性樹脂繊維束又は熱可塑性樹脂繊維／補強用繊維混
合繊維束を解繊した後、該繊維束中に充填材粒子を包含
させ、得られた粒子包含繊維束を熱可塑性樹脂で被覆し
、該繊維束の周囲にスリーブを形成させることからなる
。The method for producing a filamentous intermediate material of the present invention involves defibrating a thermoplastic resin fiber bundle or a thermoplastic resin fiber/reinforcing fiber mixed fiber bundle using an air jet, and then incorporating filler particles into the fiber bundle. The method consists of coating the particle-containing fiber bundle with a thermoplastic resin and forming a sleeve around the fiber bundle.
第１図及び第２図により、糸状中間材の製造方法を更に
詳細に説明する。The method for manufacturing the thread-like intermediate material will be explained in more detail with reference to FIGS. 1 and 2.
第１図において、樹脂繊維束ｌが巻かれたボビン（図示
せず）を解舒機２に、及び場合により補強用繊維束１′
が巻かれたボビン（図示せず）を解舒機２′に配置し、
該繊維束１及び場合により１′をネルソンタイプフィー
ドローラー１５により一定速度で引き取りながら、［解
繊及び粒子付与装置」を通過させる。In FIG. 1, a bobbin (not shown) on which a resin fiber bundle l is wound is transferred to an unwinding machine 2, and optionally a reinforcing fiber bundle 1'.
Place the bobbin (not shown) wound with on the unwinding machine 2',
The fiber bundle 1 and optionally 1' are passed through the "fibrillation and particle application device" while being taken at a constant speed by a Nelson type feed roller 15.
このｒ解繊及び粒子付与装置」の詳細については第２図
に示されるが、該装置は解繊用エアージェットノズル３
、収束ローラー４、粒子用ホッパーフィダー５、粒子槽
６、撹拌機７．空気管８、排出空気管９、バッグフィル
ター１０、吸引機ＩＩ等から構成されていて、エアージ
ェットノズル及び収束ローラーはエアーシールされてい
る。ホッパーフィダー５から粒子が粒子槽６に供給され
、撹拌機７により撹拌されて、粒子槽６内に粒子層が形
成される。The details of this defibration and particle application device are shown in FIG.
, converging roller 4, particle hopper feeder 5, particle tank 6, stirrer 7. It consists of an air pipe 8, a discharge air pipe 9, a bag filter 10, a suction machine II, etc., and the air jet nozzle and convergence roller are air-sealed. Particles are supplied from the hopper feeder 5 to the particle tank 6 and stirred by the stirrer 7 to form a particle layer in the particle tank 6.
空気管８内の圧縮空気流がエアージェットノズル３から
噴出し、繊維束１及び場合により１′を解繊した後、該
繊維束は粒子槽６内を通過し、該繊維束に粒子が付与さ
れる６粒子が付着した繊維束は収束ローラー４により解
繊の程度がコントロールされ、一方過剰の粒子は排出空
気管９を通り、バッグフィルター１０を介して吸引機１
１により吸引され。A stream of compressed air in the air tube 8 is ejected from the air jet nozzle 3 and after defibrating the fiber bundle 1 and optionally 1', the fiber bundle passes through a particle bath 6 and particles are applied to the fiber bundle. The degree of defibration of the fiber bundle to which six particles are attached is controlled by a convergence roller 4, while excess particles pass through a discharge air pipe 9 and are passed through a bag filter 10 to a suction machine 1.
It is attracted by 1.
バッグフィルター１０で捕集された後、再使用される。After being collected by the bag filter 10, it is reused.
この間繊維束には適当な張力、例えば、 ２ｇ以上の張
力が印加するように調整される。During this time, an appropriate tension, for example, 2 g or more, is applied to the fiber bundle.
次に前記「解繊及び粒子付与装置」を通過した粒子付与
繊維束は熱可塑性樹脂押出機１２とスリーブ被覆クロス
ヘツド１３とから構成されるスリーブ被覆装置に送られ
、該押出機１２に供給された熱可塑性樹脂によってその
周囲が被覆される。なお、被覆の際には樹脂繊維が溶融
しないように注意が払われる。スリーブが設けられた糸
状中間材は、冷却装置１４によって冷却固化され、ネル
ソンタイプフィードローラー１５により一定速度で引き
取られ、ついで巻き取り装置１６によって巻きとられる
。Next, the particle-added fiber bundle that has passed through the "fibrillation and particle-applying device" is sent to a sleeve coating device consisting of a thermoplastic resin extruder 12 and a sleeve-coating crosshead 13, and is supplied to the extruder 12. The periphery is coated with thermoplastic resin. Note that during coating, care is taken to prevent the resin fibers from melting. The thread-like intermediate material provided with the sleeve is cooled and solidified by a cooling device 14, taken up at a constant speed by a Nelson type feed roller 15, and then wound up by a winding device 16.
次に、本発明の熱可塑性樹脂成形材料について説明する
。Next, the thermoplastic resin molding material of the present invention will be explained.
本発明の成形材料は、前記糸状中間材を切断した後、こ
れと熱可塑性樹脂とを混合することによって得られる。The molding material of the present invention is obtained by cutting the filamentous intermediate material and then mixing it with a thermoplastic resin.
従って、本発明においては、前記糸状中間材を使用する
ため、熱可塑性樹脂中に充填材粒子、更に場合により補
強用短繊維が均一に分散され、しかも強いて混線処理を
必要としない（混線処理を行なう場合でも混練の程度は
軽いものですむ）ため、多量の充填材粒子を熱可塑性樹
脂中に配合することができ、更に繊維強化熱可塑性樹脂
成形材料を得る場合には、混合工程における補強用短繊
維の切断が（殆ど）発生しない。Therefore, in the present invention, since the thread-like intermediate material is used, the filler particles and, in some cases, reinforcing short fibers are uniformly dispersed in the thermoplastic resin, and furthermore, there is no need for cross-wire treatment (cross-wire treatment is not required). (Even when mixing, only a light degree of kneading is required), a large amount of filler particles can be blended into the thermoplastic resin, and when obtaining a fiber-reinforced thermoplastic resin molding material, it can be used for reinforcement during the mixing process. Cutting of short fibers (almost) does not occur.
本発明においては１通常糸状中間材はカッティングマシ
ンで約２〜約１５ｍの長さにベレット状に切断され（マ
スターペレット）、これとベレット状の熱可塑性樹脂（
ナチュラルペレット）とをブレンダー等を用いて混合す
ることにより、射出成形用ペレットが得られる。もちろ
ん、糸状中間材の切断を射出成形機のホッパー上で行な
い、ナチュラルペレットとの混合を射出成形機のホッパ
ー内で行なうこともできる。また、マスターペレットと
ナチュラルペレットとを混合した後、混線機にて混線し
、ペレタイザー等で切断して、射出成形用ペレットを得
ることもできる。ただ、この場合も、通常の成形材料と
比べ、混線の程度は軽くそよい。In the present invention, a normally thread-like intermediate material is cut into pellets (master pellets) with a length of about 2 to about 15 m using a cutting machine, and this and a pellet-shaped thermoplastic resin (
Pellets for injection molding can be obtained by mixing them with natural pellets using a blender or the like. Of course, it is also possible to cut the filamentous intermediate material on the hopper of the injection molding machine and mix it with the natural pellets within the hopper of the injection molding machine. Moreover, after mixing master pellets and natural pellets, they are mixed with a mixer and cut with a pelletizer or the like to obtain pellets for injection molding. However, even in this case, the degree of crosstalk is mild compared to normal molding materials.
マスターペレットとナチュラルペレットとの混合割合は
、通常マスターベレット１重量部に対して、ナチュラル
ペレット１〜１５重量部である。The mixing ratio of master pellets and natural pellets is usually 1 to 15 parts by weight of natural pellets to 1 part by weight of master pellets.
ナチュラルペレットを構成する熱可塑性樹脂は、後加工
における成形温度で完全に溶解する樹脂であり、その具
体例としては、前記スリーブ形成材として用いる樹脂と
同様に１例えばポリアミド、ポリエステル、ポリエチレ
ン、ポリプロピレン。The thermoplastic resin constituting the natural pellets is a resin that completely melts at the molding temperature during post-processing, and specific examples include polyamide, polyester, polyethylene, and polypropylene, similar to the resin used as the sleeve forming material.
ポリスチレン、ポリ弗化ビニリデン、ポリアミドイミド
、ポリイミド、ポリエーテルイミド、ポリエーテルスル
ホン、ポリエーテルエーテルケトン、ポリフェニレンサ
ルファイド等のポリマーが挙げられる。更に具体的には
、ポリアミドとしては。Examples include polymers such as polystyrene, polyvinylidene fluoride, polyamideimide, polyimide, polyetherimide, polyethersulfone, polyetheretherketone, and polyphenylene sulfide. More specifically, as polyamide.
ナイロン６６、ナイロン６、ナイロン１２、ナイロン６
／６６／１２ターポリマーのようなホモ又はコポリマー
が用いられ、またポリエステルとしては、ポリエチレン
テレフタレート、ポリブチレンテレフタレート、ポリエ
チレン−２，６−ナフタレート、ポリオキシエトキシベ
ンゾエート、全芳香族ポリエステル等のホモポリマー又
はこれらのコポリマーが用いられる。Nylon 66, Nylon 6, Nylon 12, Nylon 6
/66/12 terpolymers are used, and the polyesters include homopolymers such as polyethylene terephthalate, polybutylene terephthalate, polyethylene-2,6-naphthalate, polyoxyethoxybenzoate, fully aromatic polyesters, etc. These copolymers are used.
本発明で用いるナチュラルペレットを構成する熱可塑性
樹脂としては、糸状中間材におけるスリーブ形成材ない
し熱可塑樹脂繊維を構成する樹脂と、同一のものであっ
てもよいし、また異種のものであってもよい。The thermoplastic resin constituting the natural pellets used in the present invention may be the same as the resin constituting the sleeve forming material or thermoplastic resin fiber in the thread-like intermediate material, or it may be of a different type. Good too.
本発明の成形材料を用いて射出成形することにより、熱
可塑性樹脂中に、所望量の充填材粒子を充分に均一に分
散させた、又は所望量の充填材粒子及び補強用短繊維を
充分に均一に分散させた、機能的物性及び機械的物性に
優れた成形品を得ることができる。By injection molding using the molding material of the present invention, the desired amount of filler particles can be sufficiently uniformly dispersed in the thermoplastic resin, or the desired amount of filler particles and reinforcing short fibers can be sufficiently dispersed in the thermoplastic resin. A molded article with uniformly dispersed particles and excellent functional and mechanical properties can be obtained.
〔発明の効果〕
本発明の糸状中間材は、前記したように、充填材粒子を
包含する熱可塑性樹脂繊維束又は熱可塑性樹脂繊維／補
強用繊維混合繊維束を芯材とし、その周囲に熱可塑性樹
脂からなる軟柔なスリーブを設けたことから、
（イ）充填材として繊維状のものを使用する必要がなく
、入手容易で且つ安価な粒子状のものが使用できる。[Effects of the Invention] As described above, the thread-like intermediate material of the present invention has a thermoplastic resin fiber bundle containing filler particles or a thermoplastic resin fiber/reinforcing fiber mixed fiber bundle as a core material, and heat is applied around the core material. Since a flexible sleeve made of plastic resin is provided, (a) there is no need to use a fibrous filler, and an easily available and inexpensive particulate filler can be used.
（ロ）熱可塑性樹脂と充填材、更に場合により補強用繊
維との配合割合を、任意に定量的に設定できる、
（ハ）スリーブ中に均一に充填材粒子を分散させ且つ繊
維同志が密着せず離れた状態を保持できる。(b) The blending ratio of thermoplastic resin and filler, and optionally reinforcing fibers can be set arbitrarily and quantitatively. (c) The filler particles are uniformly dispersed in the sleeve and the fibers are in close contact with each other. It is possible to maintain a separate state.
という効果を生じる。This effect is produced.
また、本発明の成形材料は、前記したように、前記糸状
中間材を切断して熱可塑性樹脂と混合したことから。Moreover, the molding material of the present invention is obtained by cutting the filamentous intermediate material and mixing it with a thermoplastic resin, as described above.
（ニ）混線処理を強いて必要とせず、例え混線処理を行
なう場合でも混線の程度が軽くてすむため。(d) There is no need to force cross-talk processing, and even if cross-talk processing is performed, the degree of cross-talk can be light.
所望により多量の充填材粒子を配合することができる。If desired, a large amount of filler particles can be incorporated.
即ち熱可塑性樹脂と充填材、更に場合により補強用短繊
維との混合割合を任意に特定することができる上に、前
記糸状中間材を使用したことから熱可塑性樹脂中に充填
材粒子、更に場合により補強用短繊維を均一に分散させ
ることができるので、導電性、摺動性、耐摩耗性。In other words, the mixing ratio of the thermoplastic resin, the filler, and in some cases reinforcing short fibers can be arbitrarily specified, and since the thread-like intermediate material is used, filler particles in the thermoplastic resin, and in some cases, This allows the reinforcing short fibers to be uniformly dispersed, resulting in improved conductivity, sliding properties, and abrasion resistance.
静電防止性、電磁波連間性等の機能的物性及び機械的強
度、寸法安定性等の機械的物性に優れた成形体を得こと
ができる。A molded article having excellent functional properties such as antistatic properties and electromagnetic wave resistance, and mechanical properties such as mechanical strength and dimensional stability can be obtained.
（ホ）混線処理を強いて必要とせず１例え混線処理を行
なう場合でも混線の程度が軽くてすむため。(E) There is no need to force cross-talk processing, and even if cross-talk processing is performed, the degree of cross-talk can be light.
繊維強化熱可塑性樹脂成形体を得る場合には、補強用短
繊維の混合工程における切断が（殆ど）なく、充分な繊
維補強効果を有する強固な機能的物性及び機械的物性に
優れた成形体を得ることができる。When obtaining a fiber-reinforced thermoplastic resin molded product, it is necessary to obtain a molded product that is strong, has excellent functional and mechanical properties, has sufficient fiber reinforcing effect, and has (almost) no cutting during the mixing process of reinforcing short fibers. Obtainable.
という効果を生じる。This effect is produced.
また、本発明の糸状中間材の製造方法は、エアージェッ
トで（混合）繊維束を解繊した後、該繊維束中に充填材
粒子を包含させ、得られた粒子包含繊維束を熱可塑性樹
脂で被覆して該繊維の周囲にスリーブを形成させるとい
う構成にしたことから。Further, in the method for producing a filamentous intermediate material of the present invention, after defibrating a (mixed) fiber bundle with an air jet, filler particles are included in the fiber bundle, and the resulting particle-containing fiber bundle is made of thermoplastic resin. This is because the structure is such that a sleeve is formed around the fibers.
（へ）工程数が少く且つ簡単な装置を用いて実施するこ
とができる。(f) The number of steps is small and it can be carried out using a simple device.
（ト）生産効率が高い、 という効果を生じる。(g) High production efficiency; This effect is produced.
次に、本発明を実施例により詳細に説明する。 Next, the present invention will be explained in detail using examples.
実施例１
中間材の芯となる繊維として、ナイロン６Ｊｉｌ維束を
用いた。この繊維束はフィラメント数９６本、デニール
数４５０ｄａであって、密度１．１４ｇ／ａｄ、引張強
度５．６ｇ／ｄｏ、伸度４０％であった。スリーブ用熱
可塑性樹脂としては、ナイロン６樹脂を用いた。この樹
脂の密度は１．１４ｇ／ｃｄ、曲げ強度は１０．４ｋｇ
ｆ／ｍ、曲げ弾性率は２８６ｋｇｆ／ａｍ”であった、
また、充填材粒子としては炭酸カルシウム粉末を用いた
。Example 1 Nylon 6Jil fibers were used as the core fiber of the intermediate material. This fiber bundle had 96 filaments, a denier of 450 da, a density of 1.14 g/ad, a tensile strength of 5.6 g/do, and an elongation of 40%. Nylon 6 resin was used as the thermoplastic resin for the sleeve. The density of this resin is 1.14g/cd, and the bending strength is 10.4kg.
f/m, and the flexural modulus was 286 kgf/am.
Moreover, calcium carbonate powder was used as the filler particles.
この炭酸カルシウム粉末の密度は２．９３ｇ／ａ！、平
均粒径は約１５声であった。The density of this calcium carbonate powder is 2.93g/a! , the average particle size was about 15 tones.
上記ナイロン６繊維束の巻かれたボビンを解舒機２に配
置し、ネルソンタイプフィードローラー１５により一定
速度で引き取りながら、「解繊及び粒子付与装置」を通
過させた。この「解繊及び粒子付与装置」において、ホ
ッパーフィーダー５から炭酸カルシウム粉末を粒子槽６
に供給し、撹拌機７で撹拌して粒子層を形成させておく
、空気管８中の圧縮空気流がエアージェットノズル３か
ら噴出し、そのジェット流により前記ナイロン６繊維束
を解繊した後１粒子槽６内を通過させ、該繊維束に炭酸
カルシウム粉末を付与した。炭酸カルシウム粉末が付着
した繊維束は、収束ローラー４により解繊の程度をコン
トロールし、一方過剰の炭酸カルシウム粉末は排出空気
管９を通り、バッグフィルターＩＯを介して吸引機】■
により吸引され、バッグフィルターｌＯで捕集した後、
再使用した。この間。The bobbin on which the nylon 6 fiber bundle was wound was placed in the unwinding machine 2, and was passed through the "defibration and particle application device" while being taken at a constant speed by the Nelson type feed roller 15. In this "defibration and particle application device", calcium carbonate powder is fed from the hopper feeder 5 to the particle tank 6.
A stream of compressed air in the air pipe 8 is ejected from the air jet nozzle 3, and the nylon 6 fiber bundle is defibrated by the jet stream. The fiber bundle was passed through a one-particle tank 6, and calcium carbonate powder was applied to the fiber bundle. The degree of defibration of the fiber bundle to which calcium carbonate powder is attached is controlled by a convergence roller 4, while excess calcium carbonate powder passes through a discharge air pipe 9 and is passed through a bag filter IO to a suction machine]■
After being suctioned by and collected by a bag filter lO,
Reused. During this time.
繊維には約３０ｇの張力がかかるようセンサーを用いて
調整した。A sensor was used to adjust the tension so that about 30 g of tension was applied to the fibers.
次に、炭酸カルシウム粉末が付着した繊維束を、熱可塑
性樹脂押出機１２とスリーブ被覆クロスヘツド１３より
構成されるスリーブ被覆装置に送り、ここで上記のナイ
ロン６樹脂のベレットを押出機に供給して、該繊維束に
スリーブを形成し、冷却装置１４によって冷却固化して
、ネルソンタイプブイードローラー１５により一定速度
で引き取り、巻き取り装置１６により巻き取った。押出
機はスクリュー径２５ｍｍで押出し速度を０．７９ Ｑ
／ｈｒとし、クロスへラドダイの温度は２６０℃、引
取り速度は１００ｍ／鵬ｊｎに！Ｉ！Ｉした。Next, the fiber bundle with the calcium carbonate powder attached is sent to a sleeve coating device consisting of a thermoplastic resin extruder 12 and a sleeve coating crosshead 13, where the pellets of nylon 6 resin described above are fed to the extruder. The fiber bundle was formed into a sleeve, cooled and solidified by a cooling device 14, taken up at a constant speed by a Nelson type braid roller 15, and wound up by a winding device 16. The extruder has a screw diameter of 25 mm and an extrusion speed of 0.79 Q.
/hr, the temperature of the radish to the cross is 260℃, and the take-up speed is 100m/h! I! I did it.
得られた糸状中間材のスリーブは、外径２ｍｓ、厚さ２
１μ−であり、充填材とナイロン６（繊維及びスリーブ
）の容量比は６０：４０であった。The obtained thread-like intermediate material sleeve has an outer diameter of 2 ms and a thickness of 2 ms.
1 μ-, and the volume ratio of filler to nylon 6 (fiber and sleeve) was 60:40.
得られた糸状中間材をカッティングマシーンで５＋ｍの
長さにカットし、マスターベレットを得た。The obtained filamentous intermediate material was cut into a length of 5+m using a cutting machine to obtain a master pellet.
このマスターベレット１容に対し、ナイロン６樹脂のナ
チュラルベレット（前記のスリーブ形成材として用いた
ものと同じもの）２容を機械的に混合して、ホッパーに
供給し、押出機内でスクリューの回転により混合し、押
出した。該押出物をペレタイザーで切断して、射出成形
用のベレットを得た。1 volume of this master pellet is mechanically mixed with 2 volumes of natural pellets made of nylon 6 resin (the same material used as the sleeve forming material), supplied to a hopper, and then inside an extruder by rotating a screw. Mixed and extruded. The extrudate was cut with a pelletizer to obtain pellets for injection molding.
得られたベレット中の充填材含有量は２０容量２であっ
た。The filler content in the resulting pellet was 20 vol.
得られたベレットを射出成形して成形品を得た。The obtained pellet was injection molded to obtain a molded product.
得られた成形品は、ナチュラルベレットからの成形品に
比べて、剛性、寸法安定性、耐熱性が向上した。また、
該成形品は表面品質も良好で、塗装密着性に優れており
、メツキも可能であった。The obtained molded product had improved rigidity, dimensional stability, and heat resistance compared to a molded product made from natural pellets. Also,
The molded product had good surface quality, excellent paint adhesion, and could be plated.
実施例２
中間材の芯となる繊維として、ポリフェニレンサルファ
イド（以下ＰＰＳと記す）ｌａ維束とアクリロニトリル
共重合体から製造された炭素繊維束の両者を用いた。こ
のＰＰＳ繊維束はフィラメント数７２本、デニール数６
００ｄｅであり、また炭素繊維束はフィラメント数１２
，０００本、密度１．７６ｇ／ｃｄ、引張強度３６０ｋ
ｇｆ／鳳鵬２．強弾性率２３．５ Ｘ １０３ｋｇｆ／
ｉｎ”、伸度１．５％であった。スリーブ用熱可塑性樹
脂としてはＰＰＳ樹脂を用いた。このＰＰＳ樹脂の密度
は１．３７ｇ／ａＪで１曲げ強度は１２ 、７ ｋｇ
ｆ ／ ｖａ ”、曲げ弾性は３５０ｋｇｆ／■２であ
った。また、充填材粒子としては黒鉛粉末を用いた。こ
の黒鉛粉末の密度は２．１７ｇ／ａ＆、平均粒径は約５
ｐであった。Example 2 Both a polyphenylene sulfide (hereinafter referred to as PPS) la fiber bundle and a carbon fiber bundle manufactured from an acrylonitrile copolymer were used as the core fibers of the intermediate material. This PPS fiber bundle has 72 filaments and 6 denier.
00de, and the carbon fiber bundle has 12 filaments.
,000 pieces, density 1.76g/cd, tensile strength 360k
gf/Hoho 2. Strong elastic modulus 23.5 x 103kgf/
in", and the elongation was 1.5%. PPS resin was used as the thermoplastic resin for the sleeve. The density of this PPS resin was 1.37 g/aJ, and the 1 bending strength was 12.7 kg.
f/va", and the bending elasticity was 350 kgf/■2. In addition, graphite powder was used as the filler particles. The density of this graphite powder was 2.17 g/a&, and the average particle size was approximately 5.
It was p.
上記ＰＰＳ繊維束の巻かれたボビンを解舒機２に、また
上記炭素繊維束の巻かれたボビンを解舒＠２’に配置し
、実施例１と同様にして、上記両繊維束の混合繊維東上
に黒鉛粉末を含浸させ、その周囲にＰＰＳ樹脂のスリー
ブを形成させた。なお、このときの上記混合繊維束のＰ
ＰＳ繊維は１０容量２、炭素繊維は９０容量％であった
。The bobbin on which the PPS fiber bundle is wound is placed in the unwinding machine 2, and the bobbin on which the carbon fiber bundle is wound is placed in the unwinding machine @2', and the two fiber bundles are mixed in the same manner as in Example 1. The fibers were impregnated with graphite powder, and a PPS resin sleeve was formed around it. In addition, P of the above mixed fiber bundle at this time
The PS fiber had a volume of 102, and the carbon fiber had a volume of 90%.
得られた糸状中間材のスリーブは、外径２Ｉ１１ｍ、厚
さ１６【であり、充填材、ｐｐｓ （繊維及びスリーブ
）及び炭素繊維の容量比は２０：２０：６０であった。The obtained sleeve of thread-like intermediate material had an outer diameter of 2I11 m and a thickness of 16 mm, and the volume ratio of filler, pps (fiber and sleeve), and carbon fiber was 20:20:60.
得られた糸状中間材をカッティングマシーンで５ｍの長
さにカットし、マスターベレットを得た。The obtained filamentous intermediate material was cut into a length of 5 m using a cutting machine to obtain a master pellet.
このマスターベレット１容に対し、ＰＰＳ樹脂のナチュ
ラルベレット（前記のスリーブ形成材として用いたもの
と同じもの）２容を混合し、得られた混合ベレットを直
接射出成形して成形品を得た。得られた成形品中の炭素
繊維含有量は２０容量２、黒鉛含有量は７容量２であっ
た。One volume of this master pellet was mixed with two volumes of PPS resin natural pellets (the same material used as the sleeve forming material), and the resulting mixed pellet was directly injection molded to obtain a molded product. The carbon fiber content in the obtained molded article was 20 volumes2, and the graphite content was 7 volumes2.
得られた成形品は、導電性に優れると同時に潤滑性（摩
擦係数が低い）と耐摩耗性を兼備していた。The resulting molded product had excellent electrical conductivity, as well as lubricity (low coefficient of friction) and wear resistance.
第１図は本発明の糸状中間材の製造に関する説明図であ
り、第２図はその製造で使用される「解繊及び粒子付与
装置」に関する説明図である。
１；樹脂繊維束、１′補強用繊維束、２．２’；解舒機
、３；解繊用エアージェットノズル、４；収束ローラー
５；粒子用ホッパーフィーダー、６；粒子槽、７；撹拌
機、８；空気管、９；排出空気管、１０；バッグフィル
ター、１１；吸引機、１２；熱可塑性樹脂押出機、１３
ニスリーブ被覆クロスヘツド、Ｉ４；冷却装置、１５；
ネルソンタイプフィードローラー、１６；巻き取り装置
。
特許出願人 株式会社 アクロスFIG. 1 is an explanatory diagram regarding the production of the filamentous intermediate material of the present invention, and FIG. 2 is an explanatory diagram regarding the "defibration and particle imparting device" used in the production. 1; Resin fiber bundle, 1' Reinforcing fiber bundle, 2.2'; Unwinding machine, 3; Air jet nozzle for defibration, 4; Convergence roller 5; Hopper feeder for particles, 6; Particle tank, 7; Stirring Machine, 8; Air pipe, 9; Discharge air pipe, 10; Bag filter, 11; Suction machine, 12; Thermoplastic resin extruder, 13
Ni-sleeve coated crosshead, I4; cooling device, 15;
Nelson type feed roller, 16; winding device. Patent applicant: ACROS Co., Ltd.
Claims (3)
は熱可塑性樹脂繊維／補強用繊維混合繊維束を芯材とし
、その周囲に熱可塑性樹脂からなる柔軟なスリーブを設
けたことを特徴とする熱可塑性樹脂成形材料用の糸状中
間材。(1) A core material is a thermoplastic resin fiber bundle containing filler particles or a mixed thermoplastic resin fiber/reinforcing fiber bundle, and a flexible sleeve made of thermoplastic resin is provided around the core material. A thread-like intermediate material for thermoplastic resin molding materials.
熱可塑性樹脂と混合したことを特徴とする熱可塑性樹脂
成形材料。(2) A thermoplastic resin molding material, characterized in that the thread-like intermediate material according to claim (1) is cut and mixed with a thermoplastic resin.
性樹脂繊維／補強用繊維混合繊維束を解繊した後、該繊
維束中に充填材粒子を包含させ、得られた粒子包含繊維
束を熱可塑性樹脂で被覆して該繊維束の周囲にスリーブ
を形成させることを特徴とする熱可塑性樹脂成形材料用
の糸状中間材の製造方法。(3) After defibrating a thermoplastic resin fiber bundle or a mixed thermoplastic resin fiber/reinforcing fiber bundle with an air jet, filler particles are incorporated into the fiber bundle, and the resulting particle-containing fiber bundle is heated. 1. A method for producing a thread-like intermediate material for a thermoplastic resin molding material, which comprises coating the fiber bundle with a plastic resin to form a sleeve around the fiber bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1032222A JP2832206B2 (en) | 1989-02-10 | 1989-02-10 | Thread composite material for thermoplastic resin molding material, molding material from the composite material, and method for producing the composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1032222A JP2832206B2 (en) | 1989-02-10 | 1989-02-10 | Thread composite material for thermoplastic resin molding material, molding material from the composite material, and method for producing the composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02212558A true JPH02212558A (en) | 1990-08-23 |
| JP2832206B2 JP2832206B2 (en) | 1998-12-09 |
Family
ID=12352923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1032222A Expired - Lifetime JP2832206B2 (en) | 1989-02-10 | 1989-02-10 | Thread composite material for thermoplastic resin molding material, molding material from the composite material, and method for producing the composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2832206B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017105153A (en) * | 2015-12-07 | 2017-06-15 | ユニチカ株式会社 | Molding material |
| WO2020203821A1 (en) * | 2019-03-29 | 2020-10-08 | 積水化学工業株式会社 | Open carbon fiber bundle, fiber-reinforced composite material, and method for manufacturing open carbon fiber bundle |
-
1989
- 1989-02-10 JP JP1032222A patent/JP2832206B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017105153A (en) * | 2015-12-07 | 2017-06-15 | ユニチカ株式会社 | Molding material |
| WO2020203821A1 (en) * | 2019-03-29 | 2020-10-08 | 積水化学工業株式会社 | Open carbon fiber bundle, fiber-reinforced composite material, and method for manufacturing open carbon fiber bundle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2832206B2 (en) | 1998-12-09 |
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