Polycarbonate resin composition

A technology of polycarbonate resin and resin composition, applied in the field of polycarbonate resin composition and optical components, capable of solving insufficient impact strength, heat resistance and anisotropy, insufficient anisotropy, impact strength and heat resistance reduction, etc., to achieve the effect of suppressing the reduction of optical properties, excellent rigidity and impact resistance, and improving impact resistance

Pending Publication Date: 2022-03-01
MITSUBISHI ENG PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The examples describe a polycarbonate resin composition in which glass fibers with a flat cross-section and glass flakes with a thickness of 5 μm are blended in a specific quantitative ratio, and further contain a phosphate-based flame retardant and polytetrafluoroethylene, but it can be said that

Method used

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  • Polycarbonate resin composition
  • Polycarbonate resin composition
  • Polycarbonate resin composition

Examples

Experimental program
Comparison scheme
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Example

[0236] (Examples 1 to 11, Comparative Examples 1 to 11)

[0237] [Made of resin composition pellets]

[0238] The above components were compounded in the ratio (all parts of mass) described in Table 2-3, and after uniform mixing in the roller mixer, the melt kneading was carried out from the hopper.

[0239] As an extruder, the twin-screw extruder (TEX25αIIi, L / D = 52.5) ​​is used in Japanese steel, and the drum speed is 200 rpm, the cylinder temperature is 280 ° C, and the discharge amount is 25 kg / hour. out. The extruded wire was quenched in the water tank and pelletized with a granulator.

[0240] After 5 hours, the pellet obtained in the above manufacturing method was dried at 120 ° C for 5 hours, NEX80 injection molding machine made by the daily resin Industrial Co., Ltd., at a temperature of 280 ° C, the mold temperature of 100 ° C, injection speed of 30 mm / s, Under the conditions of 90 MPa, it is formed into an ISO dumbbell test piece forming with a thickness of 4 mm....

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Abstract

Provided is a polycarbonate resin composition which is characterized by containing 1-50 parts by mass of a filler (B) having an average particle diameter of 0.1-10 [mu] m per 100 parts by mass of a polycarbonate resin (A), the content of the filler (B) being less than 10% by mass in the resin composition when the filler (B) contains a filler having an average particle diameter of more than 10 [mu] m, and the content of a phosphorus-based flame retardant being 2% or less in the resin composition when the filler (B) contains a phosphorus-based flame retardant.

Description

technical field [0001] The present invention relates to a polycarbonate resin composition and an optical component. More specifically, it relates to a polycarbonate resin composition and an optical component that are excellent in rigidity and impact resistance, exhibit low anisotropy, and are excellent in heat-and-moisture resistance. Background technique [0002] Polycarbonate resins have excellent mechanical properties and are widely used as engineering plastics. Various reinforcing agents and additives are compounded in order to improve their properties, especially mechanical properties, depending on the field of use. In addition, in fields requiring high mechanical strength and rigidity, operations using fibrous reinforcing materials such as glass fibers have been performed. However, a resin composition in which glass fibers are mixed with a polycarbonate resin has a disadvantage of producing anisotropy in molding shrinkage due to fiber orientation, although it is excell...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/02C08L35/00C08L51/06C08L27/18C08L51/04C08K3/34C08K7/06
CPCC08L69/00C08L2201/08C08L23/025C08L35/00C08L51/06C08L27/18C08L51/04C08K3/34C08K7/06C08L23/02C08L27/12C08L9/00C08L21/00C08L23/26C08K3/013C08K7/00
Inventor 广瀬晃司
Owner MITSUBISHI ENG PLASTICS CORP
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