Glass fiber reinforced resin composition

A technology of reinforcing resin and glass fiber, which can be used in cameras, instruments, optics, etc., and can solve the problems of no mechanical strength, low anisotropy, flame retardancy, etc.

Inactive Publication Date: 2011-02-02
TEIJIN KASEK KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Glass fiber reinforced resin composition
  • Glass fiber reinforced resin composition
  • Glass fiber reinforced resin composition

Examples

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Embodiment 1～15、 comparative example 1～5

[0236] With the compounding amounts recorded in Tables 1 and 2, polycarbonate resin, reinforcing filler, polycaprolactone and various additives were mixed with a blender, and then melted and kneaded with a vented twin-screw extruder. Get pellets. Each of the various additives used is pre-mixed with the polycarbonate resin based on the concentration of 10 to 100 times the compounding amount, and then the whole is mixed with a blender. The vent type twin-screw extruder is made by Nippon Steel Works: TEX-30XSST (full meshing, same direction rotation, 2 screws). The extrusion conditions are discharge rate 20kg / h, screw rotation speed 150rpm, and vacuum degree of the vent port 3kPa. In addition, the extrusion temperature is 290°C from the first supply port to the second supply port, and 290°C from the second supply port to the second supply port. The die part is 300°C. In addition, the reinforcing filler was supplied from the second supply port using the side feeder of the extrud...

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Abstract

The invention provides a glass fiber reinforced resin composition, with features of excellent mechanical strength, small anisotropy of in-process shrinkage rate, good surface appearance and anti-flaming feature. The glass fiber reinforces resin composition comprises 0.1-10 wt% of poly- caprolactone (C component) relative to (A) 40-99 wt% of a thermosplastic resin (A component) and 1-60 wt% of a reinforced filling material (B component) and the (B) reinforced filling material (B component) comprises a flat cross-section glass fiber (B-1 component) wherein the average value of the long diameter of the fiber cross-section is 10-50 Mum and the average value of the ratio of the long diameter to the short diameter is 1.5-8 and a filling material (B-2 component) except the B-1 component and the weight ratio of the B-1 component to the B-2 component (B-1 component/B-2 component) is 5/95-100/0.

Description

technical field [0001] The present invention relates to a glass fiber reinforced resin composition having improved dimensional accuracy and surface appearance. More specifically, it relates to a thermoplastic resin containing a polycarbonate resin reinforced with flat cross-section glass fibers as a matrix, which has excellent mechanical strength, and has a small anisotropy of molding shrinkage, and further has good surface appearance and resistance. Combustible glass fiber reinforced resin composition. Background technique [0002] Thermoplastic resins reinforced with glass fibers are widely used because of their excellent mechanical strength and processability. In particular, polycarbonate resins are used in various applications such as mechanical parts, automobile parts, electrical and electronic parts, and office equipment parts due to their excellent properties such as mechanical strength, dimensional stability, and flame retardancy. In addition, reinforced polycarbon...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K7/14G03B17/00C08K13/04C08L69/00
Inventor 池松龙介
Owner TEIJIN KASEK KK
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