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Mineral filled, high tenacity and uvioresistant polycarbonate composition and preparation thereof

A polycarbonate, high-toughness technology, applied in the fields of UV-resistant polycarbonate compositions, high-toughness, polycarbonate compositions, and mineral filling, can solve the problems of lowering and lowering of impact toughness, fluidity, UV resistance, etc. High heat-resistant dimensional stability and long-term resistance to UV radiation

Active Publication Date: 2013-03-27
CHONGQNG PRET NEW MATERIAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the introduction of inorganic minerals, some original mechanical and physical properties of the PC / ABS alloy composition will inevitably be reduced, among which the reduction of impact toughness (especially low temperature toughness), fluidity, and ultraviolet (UV) resistance especially obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3 and comparative example 1-2

[0043] (1) After drying 66kg body ABS-1, 10kg emulsion ABS-1, 20kg talcum powder 1, and 4kg titanium dioxide and 0.2kg OP wax are mixed in proportion, join the twin-screw extruder (screw diameter 35mm, Length-to-diameter ratio L / D=36) in the main barrel. The temperature control of each section of the main barrel (from the feeding port to the nozzle outlet) is 190°C, 210°C, 230°C, 230°C, and 220°C respectively, and the twin-screw speed is 300 rpm. pellets to obtain inorganic mineral-filled ABS masterbatch-1;

[0044] (2) Mix the dried PC resin, ABS masterbatch-1, bulk ABS-1 and other additives according to the composition ratio in Table 1 and then add them to the twin-screw extruder (screw diameter 35mm, aspect ratio L / D =36) in the main barrel. The temperature control of each section of the main barrel (from the feeding port to the nozzle outlet) is 210°C, 240°C, 260°C, 260°C, and 250°C respectively, and the twin-screw speed is 300 rpm. pellets to obtain the product. The a...

Embodiment 4-7 and comparative example 2

[0050] (1) After drying 46kg body ABS-2, 25kg emulsion ABS-2, 25kg talcum powder 2, 4kg titanium dioxide and 0.2kg OP wax are mixed in proportion, join the twin-screw extruder (screw diameter 35mm, Length-to-diameter ratio L / D=36) in the main barrel. The temperature control of each section of the main barrel (from the feeding port to the nozzle outlet) is 190°C, 210°C, 230°C, 230°C, and 220°C respectively, and the twin-screw speed is 300 rpm. pellets to obtain inorganic mineral-filled ABS masterbatch-2;

[0051]After drying 46kg body ABS-2, 25kg emulsion ABS-2, 25kg wollastonite, 4kg carbon black, and 0.2kg OP wax are mixed in proportion, join the twin-screw extruder (screw diameter 35mm, aspect ratio L / D=36) in the main barrel. The temperature control of each section of the main barrel (from the feeding port to the nozzle outlet) is 190°C, 210°C, 230°C, 230°C, and 220°C respectively, and the twin-screw speed is 300 rpm. pellets to obtain inorganic mineral-filled ABS master...

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PUM

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Abstract

The invention discloses a mineral filled polycarbonate composition with high toughness, low coefficient of linear thermal expansion and good ultraviolet light resistant stability, and a preparation method thereof. The polycarbonate composition comprises the following components by weight proportion: 40 to 85 portions of polycarbonate, 10 to 50 portions of two acrylonitrile-butadiene-phenethylene graft copolymer ABS mixtures with different rubber particle diameters, 2 to 10 portions of inorganic stuffing, 0.2 to 2 portions of titanium pigment or carbon soot, and 0.3 to 1 portion of oxidation-resistant stabilizing agent. The PC composition has high toughness, simultaneously has high heat-resisting dimensional stability and long-term ultraviolet radiation resisting property, and can be used for various internal and external plastic products of automobiles.

Description

technical field [0001] The invention relates to a polycarbonate composition, specifically a mineral-filled, high-toughness, anti-ultraviolet polycarbonate composition and a preparation method thereof, belonging to the field of polymer composite materials. Background technique [0002] Polycarbonate (PC) plastic has the advantages of high heat resistance, good transparency, high gloss, good toughness, etc., but it has poor fluidity and difficult molding; the product is sensitive to gaps and prone to stress cracking; it is not resistant to solvents and is expensive. [0003] There are many known methods to improve these shortcomings by preparing PC plastic alloys, among which PC / ABS plastic alloys are the most common methods, such as US patents US3130177, US4624986, etc., through the blending technology of ABS and PC, to obtain high-impact Low cost PC / ABS plastic alloy composition with toughness and improved flow. [0004] In addition, the technology of obtaining low linear t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08K5/524B29C47/38C08L55/02C08K3/22B29C48/395
CPCB29C47/0004B29C48/022
Inventor 陈永东李文龙张祥福周文
Owner CHONGQNG PRET NEW MATERIAL