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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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 ...

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Method used

By combining elastomer (D) with the above-mentioned components and fluorine-containing resin (E), the impact resistance of the resin composition can be improved, and by making elastomer (D) and fluorine-containing resin (E) The ratio (D)/(E) of the content of ) is preferably more than 1 and 250 or less, so that the impact strength can be dramatically improved, and a polycarbonate resin composition with high rigidity and high impact resistance can be formed.

By containing fluororesin and above-mentioned each component simultaneously, thereby fluororesin brings into play the effect of surfactant, improves impact resistance, can further improve the mechanical property of resin composition, and improves the anti-dripping property when burning , can further improve the flame retardancy. Furthermore, by making the content ratio (D)/(E) of the elastomer (D) to the fluorine-containing resin (E) preferably more than 1 and not more than 250, the impact strength can be dramatically improved, and high rigidity and high durability can be realized. Shocking.

By making the content of the fluorine-containing r...

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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.

Technology Topic

PolycarbonatePolymer chemistry +2

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Examples

Experimental program(1)
Effect test(1)

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. Further, the same machine type is used, and the mold temperature is 100 mm x width 100 mm × thickness of 2 mm is formed in length of 100 mm × Width 100 mm × thickness of 2 mm.

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PUM

Property	Measurement	Unit
Thickness	4.0	mm
tensile		MPa
Particle size		Pa
strength	10

Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

Reduce anisotropy

Polycarbonate resin composition

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

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Examples

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PUM

Description & Claims & Application Information

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