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Low-odor antistatic and high tenacity polycarbonate composite

A polycarbonate, antistatic technology, applied in the field of polycarbonate composition, can solve the problems of occupants' bad smell, easy migration, etc., and achieve the effect of not easy to stick dust and high impact resistance

Inactive Publication Date: 2010-06-30
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Contradictory to this, since the commonly used antistatic agents are generally small organic molecules, under the conditions of indoor air quality in automobiles, small molecular organic volatiles in plastics can easily migrate to the surface of plastic products and volatilize to In the indoor air, causing bad odor sensation to occupants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3 and comparative example 1

[0037] Mix the dried PC resin, ABS, antistatic agent, antioxidant, etc. according to the composition ratio in Table 1, and then add them to the main barrel of a twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=36). 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 above product was dried at 85° C. for 5 hours in a blast oven and injected into a standard spline with a plastic injection molding machine at an injection molding temperature of 250° C. The injection-molded strips were placed at 50% relative humidity at 23°C for at least 24 hours before performance testing. The actual test results are shown in Table 1.

[0038] Table 1:

[0039] composition

[0040] As seen from Table 1, the surface resistance of the PC / ABS composition material prepared by the present inv...

Embodiment 4-8

[0042] Mix the dried PC resin, ABS, antistatic agent, antioxidant, etc. according to the composition ratio in Table 2, and then add them to the main barrel of a twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=36). 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 above product was dried at 85° C. for 5 hours in a blast oven and injected into a standard spline with a plastic injection molding machine at an injection molding temperature of 250° C. The injection-molded strips were placed at 50% relative humidity at 23°C for at least 24 hours before performance testing. The actual test results are shown in Table 2.

[0043] Table 2:

[0044] composition

Comparative example 2

Comparative example 3

Example 4

Example 5

PC-2

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60

60 ...

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Abstract

The invention discloses a low-odor antistatic and high tenacity polycarbonate composite, comprising 30-75 parts of polycarbonate by weight parts, and the polymerized ingredients are as follows by weight parts: 10-65 parts of acrylonitrile-butadiene-styrene grafting copolymer ABS, 5-15 parts of macromolecule antistatic agents and 2-10 parts of styrene-N-benzyl maleimide-maleic anhydride copolymer; the olycarbonate composite prepared by the technical proposal is manufactured into automobile plastic interior decorating products, has the advantages of low odor and high shock resistance and being hard to stick and adsorb the dust, and is used for manufacturing various automobile interior decorating products, such as automobile instrument panel, door panel and the like.

Description

technical field [0001] The invention relates to a polycarbonate composition, in particular to a polycarbonate composition with low odor, antistatic and high toughness. 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, not resistant to solvents, and prone to stress cracking. [0003] There are many known methods for preparing PC plastic alloys to improve these shortcomings, wherein PC / ABS plastic alloys are the most common method, such as US Patent No. 3130177, US No. 4624986, etc., obtained by blending ABS and PC Low cost PC / ABS plastic alloy composition with high impact toughness and improved flow. [0004] In modern industrial production and daily life, plastic products tend to accumulate static electricity and stick to dust. In severe cases, static electricity hazards may even cause major...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L77/12C08L77/00C08L67/00C08L25/08
Inventor 陈永东周武张祥福周文
Owner SHANGHAI PRET COMPOSITES
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