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Filament-reinforced thermoplastic resin composition

A technology for strengthening thermoplastic and resin compositions, applied in the field of long-fiber reinforced thermoplastic resin compositions, can solve problems such as difficulty in maintaining mechanical strength, and achieve the effects of excellent fluidity and excellent balance

Inactive Publication Date: 2010-01-06
DAICEL POLYMER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since it has a decomposition temperature of about 320°C, it begins to decompose when more heat treatment processes are performed, and it is difficult to maintain its excellent mechanical strength.

Method used

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  • Filament-reinforced thermoplastic resin composition
  • Filament-reinforced thermoplastic resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] The glass fiber roving is drawn through a right-angle head that processes the passage of the continuous fiber into a wave shape, and at the same time, 70 parts by weight of PC as a thermoplastic resin in a molten state (280° C.) is supplied from an extruder connected to the right-angle head. and 30 parts by weight of ABS1, the resin is impregnated in glass fibers, then pulled out into strips through a shaping die, cooled, and cut to obtain pellets with a glass fiber content of 40% by weight and a length of 11mm . The obtained pellets were formed into samples for measurement of various physical properties by injection molding.

Embodiment 2

[0102] The glass fiber roving is drawn through a right-angle head that processes the passage of the continuous fiber into a wave shape, and at the same time, 60 parts by weight of PC as a thermoplastic resin in a molten state (280° C.) is supplied from an extruder connected to the right-angle head. and 40 parts by weight of ABS1, the resin is impregnated in glass fibers, then pulled out into strips through a shaping die, cooled, and cut to obtain pellets with a glass fiber content of 40% by weight and a length of 11 mm . The obtained pellets were formed into samples for measurement of various physical properties by injection molding.

Embodiment 3

[0104] The glass fiber roving is drawn through a right-angle head that processes the passage of the continuous fiber into a wave shape, and at the same time, 70 parts by weight of PC as a thermoplastic resin in a molten state (280° C.) is supplied from an extruder connected to the right-angle head. and 30 parts by weight of ABS2, after the resin is impregnated in glass fibers, it is pulled out into strips through a shaping die, and after cooling, it is cut to obtain pellets with a glass fiber content of 40% by weight and a length of 11 mm. . The obtained pellets were formed into samples for measurement of various physical properties by injection molding.

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Abstract

Disclosed is a polycarbonate resin composition which is small in anisotropy of linear expansion coefficient, while being excellent in dimensional stability, fluidity and heat resistance. Specifically disclosed is a long fiber-reinforced thermoplastic resin composition obtained by blending 11-200 parts by weight of a reinforcing fiber per 100 parts by weight of a composition composed of a polycarbonate resin (PC) and a styrene resin (SR).

Description

technical field [0001] The present invention relates to a long-fiber-reinforced thermoplastic resin composition obtained by fiber-reinforcing a resin alloy obtained by mixing polycarbonate resin (PC) and styrene-based resin (SR) in a specific ratio. Background technique [0002] Polycarbonate is a thermoplastic resin with carbonate bonds in its main chain. It has excellent mechanical properties, heat resistance, and electrical properties. It is a representative engineering plastic. However, since it has a decomposition temperature of about 320° C., it starts to decompose when many heat treatment processes are performed, and it is difficult to maintain its excellent mechanical strength. [0003] JP-A 2001-294741 discloses mixing an ethylene-(meth)acrylic acid copolymer or an ethylene-(meth)acrylate copolymer into a resin composition component including a polycarbonate resin and a silicon-containing inorganic filler such as talc In addition, JP-A 2003-277597 discloses a metho...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K9/04C08L25/00C08L51/04
CPCC08L69/00C08K7/02C08L25/04C08K9/04C08L2666/18C08L2666/06
Inventor 片山昌广大江裕一坂本英明
Owner DAICEL POLYMER LTD
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