JPS63203306A - Manufacture of fiber reinforced resin material - Google Patents
Manufacture of fiber reinforced resin materialInfo
- Publication number
- JPS63203306A JPS63203306A JP62037140A JP3714087A JPS63203306A JP S63203306 A JPS63203306 A JP S63203306A JP 62037140 A JP62037140 A JP 62037140A JP 3714087 A JP3714087 A JP 3714087A JP S63203306 A JPS63203306 A JP S63203306A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- fiber
- fibers
- short fibers
- short
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 73
- 239000000463 material Substances 0.000 title claims abstract description 12
- 229920005989 resin Polymers 0.000 title claims description 24
- 239000011347 resin Substances 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 34
- 239000008188 pellet Substances 0.000 claims abstract description 25
- 238000002844 melting Methods 0.000 claims abstract description 20
- 230000008018 melting Effects 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000004898 kneading Methods 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 11
- 239000004917 carbon fiber Substances 0.000 abstract description 11
- 230000005484 gravity Effects 0.000 abstract description 11
- -1 polyethylene Polymers 0.000 abstract description 11
- 239000011159 matrix material Substances 0.000 abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 9
- 239000004698 Polyethylene Substances 0.000 abstract description 7
- 229920000573 polyethylene Polymers 0.000 abstract description 7
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 abstract description 3
- 229920001155 polypropylene Polymers 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 239000012783 reinforcing fiber Substances 0.000 description 7
- 229920001903 high density polyethylene Polymers 0.000 description 6
- 239000004700 high-density polyethylene Substances 0.000 description 6
- 229920006231 aramid fiber Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004793 Polystyrene Substances 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
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 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
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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、繊維強化樹脂材料、詳しくは熱可塑性樹脂マ
トリックス中に補強用繊維が均一に分散された高強度あ
るいは高導電性を有する繊維強化樹脂材料を製造する方
法に関するものである。Detailed Description of the Invention "Field of Industrial Application" The present invention relates to fiber-reinforced resin materials, specifically fiber-reinforced fibers having high strength or high conductivity in which reinforcing fibers are uniformly dispersed in a thermoplastic resin matrix. The present invention relates to a method of manufacturing a resin material.
「従来の技術」
合成樹脂等の樹脂マトリックス中に、補強用繊維を分散
させた繊維強化樹脂材料は広く用いられているが、例え
ば炭素繊維やアラミド繊維のような比較的比重の小さい
繊維や、比重の大きい金泥繊維であっても繊維径が小さ
くて、かつ短く切断された繊維（チョプドストランド）
では、かさ比重が１０”〜１０゛１と非常に軽いために
、比重が１前後の樹脂の粉末やペレットと〆昆合する際
、分離しゃ、ずいという問題があった。"Prior Art" Fiber-reinforced resin materials in which reinforcing fibers are dispersed in a resin matrix such as synthetic resin are widely used. Even if the gold clay fiber has a high specific gravity, the fiber diameter is small and the fiber is cut short (chopped strand).
Since it has a very light bulk specific gravity of 10" to 10"1, there is a problem in that it cannot be separated when combined with resin powder or pellets having a specific gravity of around 1.
そこで樹脂マトリックス中に補強用繊維を高濃度で分散
させる方法が種々試みられている。Therefore, various methods of dispersing reinforcing fibers at high concentrations in a resin matrix have been attempted.
すなわち、容器の底部に回転翼を有するミキサーに炭素
繊維のチョツプドストランドと熱可塑性樹脂の粉末とを
入れ、炭＠繊維を開繊しながら熱可塑性４ＭＴｆ！粉末
と混合したのち、加熱プレス機を用いてシート状の成形
物を得る方法が、例えば特開昭５８−４６５０８号公報
に開示されている。That is, chopped carbon fiber strands and thermoplastic resin powder are placed in a mixer with rotary blades at the bottom of the container, and while the charcoal and fibers are opened, the thermoplastic 4MTf! For example, Japanese Patent Laid-Open No. 58-46508 discloses a method in which a sheet-like molded product is obtained using a hot press after mixing with powder.
また、炭素繊維等の導電性の連続繊維を複数本にして、
加熱融解したエチレン−酢酸ビニル共重合体と炭化水素
系ワックスとの混合物中に含浸したのち冷却し、これを
２〜１０龍の長さの集束物にしたものを熱可塑性樹脂の
ベレットあるいは粉末と混合し、混練してベレット状の
成形物を得る方法が、例えば特開昭６１−２９５０５号
公報に開示されている。In addition, by making multiple conductive continuous fibers such as carbon fiber,
It is impregnated into a mixture of heated and melted ethylene-vinyl acetate copolymer and hydrocarbon wax, cooled, and made into a bundle of 2 to 10 lengths, which is then made into a pellet or powder of thermoplastic resin. A method of mixing and kneading to obtain a pellet-like molded product is disclosed in, for example, Japanese Patent Application Laid-Open No. 61-29505.
「発明が解決しようとする問題点」
前記特開昭５８−４６５０８号公報に開示された方法は
、現在熱可塑性樹脂の成形方法として最も普及している
射出成形法を適用する場合に、シート状成形物を一度粉
砕または切断しないと、射出成形機の供給機に補給でき
ないという問題があり、またベレット状の成形物を作る
場合は、さらに数工程を経なければならないという欠点
がある。"Problems to be Solved by the Invention" The method disclosed in Japanese Patent Application Laid-open No. 58-46508 is difficult to solve when applying the injection molding method, which is currently the most popular molding method for thermoplastic resins. There is a problem in that the feeder of the injection molding machine cannot be replenished unless the molded product is crushed or cut once, and when a pellet-shaped molded product is made, several additional steps are required.
一方前記特開昭６１−２９５０５号公報に開示された方
法は、使用する繊維が連続繊維でなければならず、比較
的短繊維の不達Ｖｔ＃ａ維を集束しても、これを連続的
に含浸処理することは殆ど不可能であるという欠点があ
る。On the other hand, in the method disclosed in JP-A No. 61-29505, the fibers used must be continuous fibers, and even if relatively short unreachable Vt#a fibers are collected, they cannot be continuously processed. It has the disadvantage that it is almost impossible to impregnate it.
本発明は、かぐの如き従来の問題点を解決することを目
的とする。The present invention aims to solve the problems of conventional systems such as Kaguno.
「問題点を解決するための手段」
本発明は、補強用短繊維と熱可塑性＋ｎ脂の短繊維から
なる集束物と、熱可塑性樹脂の粉末またはベレットとの
混合物を前記熱可塑性樹脂の粉末またはベレットの融解
温度以上の温度で混練することを特徴とする繊維強化樹
脂材料の製造方法である。"Means for Solving the Problems" The present invention provides a mixture of a bundle of reinforcing short fibers and short fibers of thermoplastic + n fat, and thermoplastic resin powder or pellets. This is a method for producing a fiber-reinforced resin material characterized by kneading at a temperature higher than the melting temperature of the pellet.
以下に、本発明の製造方法について説明する。The manufacturing method of the present invention will be explained below.
本発明において用いる補強用短繊維の種類としては、例
えば炭素繊維、アルミナ繊維、炭化ケイｓｕｈ維および
ステンレス、アルミニウム、銅等の金属繊維等の無機繊
維ならびにアラミド繊維等の有機繊維をあげることがで
きる。Examples of the reinforcing short fibers used in the present invention include inorganic fibers such as carbon fibers, alumina fibers, silicon carbide fibers, and metal fibers such as stainless steel, aluminum, and copper, and organic fibers such as aramid fibers. .
前記短繊維の長さは、特に限定しないが、１〜２０ｆｉ
の範囲のものが好ましく、もちろん長繊維のストランド
を短く切断加工したものも使用できる。The length of the short fibers is not particularly limited, but is 1 to 20 fi.
It is preferable to use a fiber in the range of 1 to 10, and of course long fiber strands cut into short lengths can also be used.
前記短繊維の引張強度について、特に限定はしないが、
５０ ｋｇ ／ ｍ ”以上の短繊維であることが好ま
しい。The tensile strength of the short fibers is not particularly limited, but
It is preferable that the short fibers have a weight of 50 kg/m'' or more.
本発明において用いる熱可塑性樹脂の短繊維の種類とし
ては、例えばポリエチレン繊維、ポリプロピレン繊維等
をあげることができる。Examples of the short fibers of the thermoplastic resin used in the present invention include polyethylene fibers, polypropylene fibers, and the like.
前記短繊維の長さは、待に限定しないが１〜２０ａｍの
範囲のものが使用できる。The length of the short fibers is not limited to length, but can be from 1 to 20 am.
本発明におし）で樹脂マトリックスとして用いる熱可塑
性樹脂の粉末またはベレットのＭＷ４および大きさとし
ては、特に限定されず、広く使われるものとして例えば
ポリエチレン、ポリプロピレン、ポリスチレン、ナイロ
ン、ポリアセタール、ポリエチレンテレフタレート、ポ
リカーボネート等をあげることができる。The MW4 and size of the thermoplastic resin powder or pellet used as the resin matrix in the present invention are not particularly limited, and widely used ones include polyethylene, polypropylene, polystyrene, nylon, polyacetal, polyethylene terephthalate, Examples include polycarbonate.
前記樹脂の融解温度が前記熱可塑性樹脂の短繊維の融解
温度よりも低くない温度であると後述するａ練の工程に
おいて熱可塑性樹脂マトリックス中に補強用繊維が均一
に分散するので好ましい。It is preferable that the melting temperature of the resin is not lower than the melting temperature of the short fibers of the thermoplastic resin, since the reinforcing fibers will be uniformly dispersed in the thermoplastic resin matrix in the a-kneading process described below.
つぎに、本発明の製造方法の各工程について説明する。Next, each step of the manufacturing method of the present invention will be explained.
まず、前記補強用短繊維と熱可塑性樹脂の短繊維からな
る集束物を作る。First, a bundle consisting of the reinforcing short fibers and thermoplastic resin short fibers is made.
ここに「集束」とは、短繊維が相互にからみ合った状態
をいう。゛
前記集束物は、常法により、または例えば、特願昭６０
−２５３７２４号「炭素繊維集束物の製造方法」に記載
されている如く、内部に旋回気流を生じさせた円筒容器
内に短繊維の綿状集合体を混入し、気流と共に旋回させ
る方法により形成することができる。Here, "bundling" refers to a state in which short fibers are entangled with each other.゛The above-mentioned bundle can be produced by a conventional method or, for example, by
As described in No. 253724 "Method for producing carbon fiber bundles," a flocculent aggregate of short fibers is mixed into a cylindrical container in which a swirling airflow is generated, and the fibers are swirled together with the airflow. be able to.
円筒容器の内部に旋回気流を生しさせるためには、円筒
容器の側面にその接線方向に設けた気流送入管から気流
を送入すればよく、送入された気流は円筒容器の内壁に
沿って旋回したのち、フィルターを設けた気流出口から
外部へ排出される。In order to generate a swirling airflow inside a cylindrical container, it is sufficient to send airflow from an airflow inlet pipe provided on the side of the cylindrical container in a tangential direction, and the introduced airflow hits the inner wall of the cylindrical container. After turning around, the air is discharged to the outside through an air outlet equipped with a filter.
このほか通常のサイクロンタイプの装置を使用してもよ
い。In addition, a normal cyclone type device may be used.
得られる集束物の形状は、操作条件に応じ大別して短繊
維が一方向に揃った円柱状のもの、または短繊維が丸ま
った球形のマリモ状のものとなる。Depending on the operating conditions, the shape of the resulting bundle can be roughly divided into a cylindrical shape in which the short fibers are aligned in one direction, or a spherical marimo-like shape in which the short fibers are curled.
なお、前記集束物を形成する際に、補強用短繊維と熱可
塑性樹脂の短繊維のほかに、引張弾度が４０ｋｔ／ｗｓ
ｍ”以下で引張伸度が２％以下の短繊維をあらかしめ配
合しておくと後述する混練の工程において、まず前記引
張強度が４０ｋｇ／關２以下で引張伸度が２％以下の短
繊維が最初に破壊されて集束物の集束状態の一部が解か
れるため樹脂マトリ７クス中への補強繊維の均一分散を
良くするす１果がある。In addition, when forming the bundle, in addition to reinforcing short fibers and thermoplastic resin short fibers, a material with a tensile elasticity of 40 kt/ws
If short fibers with a tensile strength of 2% or less and a tensile strength of 2% or less are mixed in advance, in the kneading process described later, first the short fibers with a tensile strength of 40kg/2 or less and a tensile elongation of 2% or less are mixed. is first destroyed and part of the bundled state of the bundled material is released, which has the effect of improving uniform dispersion of the reinforcing fibers into the resin matrix 7.
前記引張強度が４０ ｋｇ ／ ａ鳳”以下で引張伸度
が２％以下の短繊維の種類は、例えば炭素繊維、セラミ
ック繊維等の如き比較的脆いものが好ましく、長さは１
〜２０龍の範囲のものが好ましい。The type of short fibers having a tensile strength of 40 kg/a or less and a tensile elongation of 2% or less is preferably relatively brittle, such as carbon fiber or ceramic fiber, and the length is 1.
A range of ~20 dragons is preferred.
また、前記短繊維の引張強度が４０ ｋｇ ／ 龍’を
超え、あるいは引張伸度が２％を超えるものを用いると
、混練の工程においてこの短繊維が先きに破壊されない
ため樹脂マトリックス中への補強繊維の分散が均一にな
らず、分散させるために余分な力をかけることにより補
強繊維自体が短かく切断され、得られる成形物の強度や
導電性が劣化する。In addition, if the short fibers have a tensile strength of more than 40 kg/dragon' or a tensile elongation of more than 2%, the short fibers will not be destroyed first in the kneading process, so they will not be absorbed into the resin matrix. The reinforcing fibers are not dispersed uniformly, and when extra force is applied to disperse them, the reinforcing fibers themselves are cut into short pieces, which deteriorates the strength and conductivity of the resulting molded product.
本発明における前記集束物のかさ比重や大きさは、特に
定めないが、熱可塑性樹脂と混合、混練する装置の種類
により最適ながさ比重や大きさは異る。The bulk specific gravity and size of the bundle in the present invention are not particularly defined, but the optimal bulk specific gravity and size vary depending on the type of device for mixing and kneading with the thermoplastic resin.
一般に使用されている単軸押出機や２軸押出機では、連
続供給性の面からかさ比重が０．０４〜０．１８で直径
が１０龍以下の球形のものが好ましい。Generally used single-screw extruders and twin-screw extruders are preferably spherical with a bulk specific gravity of 0.04 to 0.18 and a diameter of 10 dragons or less from the viewpoint of continuous feeding.
つぎに、前記集束物と熱可塑性樹脂の粉末またはペレッ
トを所望の割合で混合し、その混合物を前記熱可塑性ｔ
！４脂の粉末またはペレットの融解温度以上の温度で混
練する。Next, the aggregate and thermoplastic resin powder or pellets are mixed in a desired ratio, and the mixture is mixed with the thermoplastic resin powder or pellets.
! 4 Knead at a temperature higher than the melting temperature of the fat powder or pellets.
混練方法としては、例えば押出機のホッパーに集束物と
熱可塑性樹脂の粉末またはペレットの混合物を投入する
と前記混合物はホッパー下部に連設されたスクリューの
回転によってシリンダー内部に装入されて圧縮される。As a kneading method, for example, when a mixture of aggregate and thermoplastic resin powder or pellets is put into a hopper of an extruder, the mixture is charged into a cylinder and compressed by rotation of a screw connected to the bottom of the hopper. .
この時、集束物中に引張強度が４Ｑ ｋｇ ／ ｍ ”
以下で引張伸度が２％以下の短繊維をを配合したものを
用いた場合は、この短繊維がまず破壊され、つぎに熱可
塑性樹脂の粉末またはペレットが相互摩擦により発熱す
ると共に電気ヒーター等によってあらかじめ熱可塑性樹
脂の粉末またはペレットの融解温度以上の温度に保持さ
れたシリンダー内部の高温部を通過する時に、集束物中
の熱可塑性樹脂の短繊維が融解して完全に集束物の集束
状態が解かれ、樹脂マトリックス中に補強用短繊維が均
一に分散される。At this time, the tensile strength in the bundle is 4Q kg/m”
When using a blend of short fibers with a tensile elongation of 2% or less, the short fibers are first destroyed, and then the thermoplastic resin powder or pellets generate heat due to mutual friction, and an electric heater etc. When the thermoplastic resin powder or pellets pass through a high-temperature section inside the cylinder, which is kept at a temperature higher than the melting temperature of the thermoplastic resin powder or pellets, the thermoplastic resin short fibers in the bundle melt and the bundle becomes completely bundled. is unraveled, and the reinforcing short fibers are uniformly dispersed in the resin matrix.
「作用」
樹脂材料中に分散させて補強するための短繊維を、あら
かしめ熱可塑性樹脂の短繊維とともに集束しておいてか
ら熱可塑性樹脂の粉末またはペレットと混合したのち、
熱可塑性樹脂の粉末またはペレットの融解温度以上の温
度で混練するので、前記混合の工程で十分に繊維が樹脂
中に分散され、しかるのち混練の工程でマトリックスで
ある熱可塑性樹脂中に均一に分散された繊維の集束状態
が解かれる。"Operation" Short fibers to be dispersed and reinforced in a resin material are bundled together with short fibers of thermoplastic resin, and then mixed with thermoplastic resin powder or pellets.
Since the kneading is carried out at a temperature higher than the melting temperature of the thermoplastic resin powder or pellets, the fibers are sufficiently dispersed in the resin in the mixing process, and then uniformly dispersed in the thermoplastic resin matrix in the kneading process. The bundled state of the fibers is released.
１一実施例」 以下に、本発明の実施例について説明する。11 Examples” Examples of the present invention will be described below.
実施例１
引張強度が８２ｋｇ／ｗｍ２ で引張伸度が２．０％の
ピッチ系炭素繊維を長さ３ ａｓに切ったもの６０重Ｎ
部と、融解４度が１２５℃で直径８６．＋１ｍのポリエ
チレン繊維（加島産業■製）を長さ３關に切ったもの３
０重量部と、引張強度が３５ ｋｇ ／ ｗｓ ”で引
張伸度が１．３％のピッチ系炭素繊維を長さ３龍に切っ
たもの１０重量とからなる直径２．０鶴、かさ比重０．
０８の集束物２ ｋｇと融解温度が１３６°Ｃの高密度
ポリエチレン樹脂ペレット （三井石油化学工業ｉｓ製
）４ｋｇをあらかじめ混合したのち、２００℃に加熱さ
れたスクリュ一式単軸押出機（バレル径３０ｍｍ、Ｌ／
Ｄ＝３０、圧縮比３．２）の投入ホッパーに投下し、混
練されてストランド状に押出されたものを水冷し、ペレ
ット化した。Example 1 Pitch-based carbon fiber with a tensile strength of 82 kg/wm2 and a tensile elongation of 2.0% was cut into a length of 3 as, 60 weight N.
and a diameter of 86.5 degrees at a melting point of 4 degrees and 125 degrees Celsius. +1m polyethylene fiber (manufactured by Kashima Sangyo ■) cut into 3 lengths 3
0 parts by weight and 10 parts by weight of pitch-based carbon fiber cut into 3 lengths with a tensile strength of 35 kg/ws" and a tensile elongation of 1.3%, with a diameter of 2.0 and a bulk specific gravity of 0. ．．
08 bundle and 4 kg of high-density polyethylene resin pellets (manufactured by Mitsui Petrochemical Industry IS) with a melting temperature of 136°C were mixed in advance, and the mixture was heated to 200°C using a single-screw extruder (barrel diameter 30 mm). ,L/
The mixture was put into a charging hopper with D=30 and compression ratio of 3.2), kneaded and extruded into a strand, which was then cooled with water and pelletized.
このペレットを１９０℃に加熱されたホットプレスにて
１５ｃｍ Ｘ １５ｃ＋ａ ｘ厚さ１論−の成形板を作
り、その引張強度と体積固有抵抗を測定し、第１表に示
す結果を得た。A molded plate of 15 cm x 15 cm x 1 x thickness was made using a hot press heated to 190° C., and its tensile strength and volume resistivity were measured, and the results shown in Table 1 were obtained.
実施例２
引張強度が２９０に＋ｒ／ｍ２のアラミド繊維（デュポ
ン面製）を長さ３鶴に切ったもの６０重量部と、融解温
度が１２５℃でＵ径８６μｍのポリエチレン繊維（加島
産業側製）を長さ３１！こ切ったもの３（ｌｆｆｉ置部
と、引張強度が３５ｋｇ／ａｍ” で引張伸度が１，３
％のピッチ系炭素繊維を長さ３鰭に切ったもの１０重量
部とからなる直径２．０ ｗ、かさ比重０．０６の集束
物２ｋｌｒと融解温度が１３６℃の高密度ポリエチレン
樹脂ペレット （三井石油化学工業■製）４ｋｇをあら
かじめ混合したのち実施例１と同様の装置、方法で同じ
大きさの成形板を作り、特性試験を行い第１表に示す結
果を得た。Example 2 60 parts by weight of aramid fiber (manufactured by Dupont Co., Ltd.) with a tensile strength of 290+r/m2 cut into 3 lengths and polyethylene fiber (manufactured by Kashima Sangyo Co., Ltd.) with a melting temperature of 125°C and a U diameter of 86 μm. ) with length 31! Cut into pieces 3 (lffi placement part, tensile strength is 35 kg/am" and tensile elongation is 1.3
% pitch-based carbon fiber cut into 3 fin lengths, 10 parts by weight, a bundle of 2 klr with a diameter of 2.0 W and a bulk specific gravity of 0.06, and high-density polyethylene resin pellets with a melting temperature of 136°C (Mitsui) After pre-mixing 4 kg of the mixture (manufactured by Petrochemical Industry ■), a molded plate of the same size was made using the same equipment and method as in Example 1, and a characteristic test was conducted to obtain the results shown in Table 1.
実施例３
直径８μｍのステンレス繊維（東京製綱■製）を長さ３
Ｎに切ったもの４０重量部と、融解温度が１２５℃で直
径８６μｍのポリエチレン繊維（用品産業ｎ製）を長さ
３龍に切ったもの５５重量部と、引張強度が３０ｋｉｒ
／ｗ”で引張伸度が１．１％のピッチ系炭素繊維を長さ
３龍に切ったもの５重量部とからなる直径２．３ｆｌ、
かさ比重０．１５の集束物２嘘と融解温度が１３６℃の
高密度ポリエチレン樹脂ペレット （三井石油化学工業
ｎｌｉ）４％ｇをあらかじめ混合したのち実施例１と同
様の装置、方法で同じ大きさの成形板を作り、特性試験
を行い第１表に示す結果を得た。Example 3 Stainless fiber with a diameter of 8 μm (manufactured by Tokyo Rope Co., Ltd.) was made into a length of 3
40 parts by weight of polyethylene fibers cut into N-shaped pieces, 55 parts by weight of polyethylene fibers (manufactured by Yogi Sangyo N) with a melting temperature of 125°C and a diameter of 86 μm cut into 3-length pieces, and a tensile strength of 30 kir.
/w'' and tensile elongation of 1.1% pitch-based carbon fiber cut into 3 lengths and 5 parts by weight, 2.3fl in diameter,
After pre-mixing 4% of high-density polyethylene resin pellets (Mitsui Petrochemical Industries, Ltd.) with a bulk density of 0.15 and a melting temperature of 136°C, the same size was prepared using the same equipment and method as in Example 1. A molded plate was made and a characteristic test was conducted to obtain the results shown in Table 1.
比較例１
引張強度が８２ｋｇ／ｍ” のピッチ系炭素繊維を長さ
３龍に切ったものを集束して直径２．０ｍｍ、かさ比重
０．０９の集束物を作り、この集束物２ ｋｇと融解温
度が１３６℃の高密度ポリエチレン樹脂ペレット（三井
石油化学工業■製）４ｋｉｒをあらかじめ混合したのち
実施例１と同様の装置、方法で同じ大きさの成形板を作
り、特性試験を行い第１表に示す結果を得た。Comparative Example 1 Pitch-based carbon fibers with a tensile strength of 82 kg/m" were cut into 3 lengths and bundled to make a bundle with a diameter of 2.0 mm and a bulk specific gravity of 0.09. After pre-mixing 4kir of high-density polyethylene resin pellets (manufactured by Mitsui Petrochemical Industries, Ltd.) with a melting temperature of 136°C, a molded plate of the same size was made using the same equipment and method as in Example 1, and a characteristic test was conducted. The results shown in the table were obtained.
比較例２
引張強度が２９０ ｋｇ ／ 龍’のアラミド繊維（デ
ュポン側層）を長さ３ｆｌに切ったもを集束して直径２
．１ｆｌ、かさ比ｆｆ１０．０８の集束物を作り、この
集束物２ ｋｇと融解温度が１３６℃の高密度ポリエチ
レン樹脂ペレット （三井石油化学工業側製）４ｋｇを
あらかじめ混合したのち実施例１と同様の装置、方法で
同じ大きさの成形板を作り、特性試験を行い第１表に示
す結果を得た。Comparative Example 2 Aramid fibers (DuPont side layer) with a tensile strength of 290 kg/Ryu' were cut into 3 fl lengths and bundled into a diameter of 2
．． A bundle of 1 fl and a bulk ratio ff of 10.08 was made, and 2 kg of this bundle was mixed with 4 kg of high-density polyethylene resin pellets (manufactured by Mitsui Petrochemical Industries) with a melting temperature of 136°C. Molded plates of the same size were made using the same equipment and method, and characteristic tests were conducted to obtain the results shown in Table 1.
比較例３
直径８μｍのステンレス繊維（東京製綱■製）を長さ３
ｆｉに切った物を集束して直径２．Ｏｆｌ、かさ比重０
．１５の集束物を作り、この集束物２ ｋｔｒと融解温
度が１３６℃の高密度ポリエチレン樹脂ペレット （三
井石油化学工業側製）４ｋｇをあらかじめ混合したのち
実施例１と同様の装置、方法で同じ大きさの成形板を作
り、特性試験を行い第１表に示す結果を得た。Comparative Example 3 Stainless steel fiber with a diameter of 8 μm (manufactured by Tokyo Rope Co., Ltd.) was made with a length of 3
Gather the pieces cut to fi to a diameter of 2. Ofl, bulk specific gravity 0
．． After premixing this bundle 2 ktr with 4 kg of high-density polyethylene resin pellets (manufactured by Mitsui Petrochemical Industries) with a melting temperature of 136°C, the same size was prepared using the same equipment and method as in Example 1. A molded plate was made, and a characteristic test was conducted to obtain the results shown in Table 1.
第１表
「発明の効果」
以上述べた如く、本発明の繊維強化樹脂材料の製造方法
により、高価な長繊維を用いることなく短繊維を補強用
に用いて高強度あるいは高導電性を有する繊維強化樹脂
材料を連続的に製造することができる。Table 1 "Effects of the Invention" As stated above, the method for producing fiber-reinforced resin materials of the present invention allows fibers with high strength or high conductivity to be produced by using short fibers for reinforcement without using expensive long fibers. Reinforced resin materials can be produced continuously.
Claims (2)
束物と、熱可塑性樹脂の粉末またはペレットとの混合物
を前記熱可塑性樹脂の粉末またはペレットの融解温度以
上の温度で混練することを特徴とする繊維強化樹脂材料
の製造方法。(1) Kneading a mixture of reinforcing short fibers and thermoplastic resin short fibers and thermoplastic resin powder or pellets at a temperature higher than the melting temperature of the thermoplastic resin powder or pellets. A method for producing a characteristic fiber-reinforced resin material.
熱可塑性樹脂の短繊維の融解温度よりも低くない温度で
ある特許請求の範囲第１項記載の製造方法。(2) The manufacturing method according to claim 1, wherein the melting temperature of the thermoplastic resin powder or pellet is not lower than the melting temperature of the short thermoplastic resin fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62037140A JPS63203306A (en) | 1987-02-19 | 1987-02-19 | Manufacture of fiber reinforced resin material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62037140A JPS63203306A (en) | 1987-02-19 | 1987-02-19 | Manufacture of fiber reinforced resin material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63203306A true JPS63203306A (en) | 1988-08-23 |
Family
ID=12489310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62037140A Pending JPS63203306A (en) | 1987-02-19 | 1987-02-19 | Manufacture of fiber reinforced resin material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63203306A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014098103A1 (en) * | 2012-12-21 | 2014-06-26 | 東レ株式会社 | Fiber-reinforced thermoplastic-resin molded article, fiber-reinforced thermoplastic-resin molding material, and method for manufacturing fiber-reinforced thermoplastic-resin molding material |
| WO2017073483A1 (en) * | 2015-10-30 | 2017-05-04 | 東レ株式会社 | Fibre-reinforced thermoplastic resin moulded article, and fibre-reinforced thermoplastic resin moulding material |
| JP2017113983A (en) * | 2015-12-24 | 2017-06-29 | トヨタ自動車株式会社 | Method for producing fiber-reinforced thermoplastic resin |
-
1987
- 1987-02-19 JP JP62037140A patent/JPS63203306A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014098103A1 (en) * | 2012-12-21 | 2014-06-26 | 東レ株式会社 | Fiber-reinforced thermoplastic-resin molded article, fiber-reinforced thermoplastic-resin molding material, and method for manufacturing fiber-reinforced thermoplastic-resin molding material |
| JP5633660B1 (en) * | 2012-12-21 | 2014-12-03 | 東レ株式会社 | Fiber-reinforced thermoplastic resin molded article, fiber-reinforced thermoplastic resin molding material, and method for producing fiber-reinforced thermoplastic resin molding material |
| KR20150099710A (en) * | 2012-12-21 | 2015-09-01 | 도레이 카부시키가이샤 | Fiber-reinforced thermoplastic-resin molded article, fiber-reinforced thermoplastic-resin molding material, and method for manufacturing fiber-reinforced thermoplastic-resin molding material |
| US9505928B2 (en) | 2012-12-21 | 2016-11-29 | Toray Industries, Inc. | Fiber-reinforced thermoplactic-resin molded article, fiber-reinforced thermoplastic-resin molding material, and method of manufacturing fiber-reinforced thermoplastic-resin molding material |
| US9605148B2 (en) | 2012-12-21 | 2017-03-28 | Toray Industries, Inc. | Fiber-reinforced thermoplastic-resin molding material |
| US9605149B2 (en) | 2012-12-21 | 2017-03-28 | Toray Industries, Inc. | Fiber-reinforced thermoplastic-resin molding material and method of manufacturing fiber-reinforced thermoplastic-resin molding material |
| WO2017073483A1 (en) * | 2015-10-30 | 2017-05-04 | 東レ株式会社 | Fibre-reinforced thermoplastic resin moulded article, and fibre-reinforced thermoplastic resin moulding material |
| JP6123956B1 (en) * | 2015-10-30 | 2017-05-10 | 東レ株式会社 | Fiber-reinforced thermoplastic resin molded article and fiber-reinforced thermoplastic resin molding material |
| US10584218B2 (en) | 2015-10-30 | 2020-03-10 | Toray Industries, Inc. | Fiber-reinforced thermoplastic resin molded article, and fiber-reinforced thermoplastic resin molding material |
| JP2017113983A (en) * | 2015-12-24 | 2017-06-29 | トヨタ自動車株式会社 | Method for producing fiber-reinforced thermoplastic resin |
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