Antistatic and ultraviolet resistant PC/ASA material composition

A material composition, anti-ultraviolet technology, applied in the field of antistatic, polycarbonate/acrylonitrile-styrene-acrylate composition, anti-ultraviolet PC/ASA material composition, can solve the bad smell and easy migration of occupants And other problems, to achieve the effect of not easy to stick to dust, low volatility, 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

[0045] After drying PC resin, ASA, SAN, SMI, antistatic agent, auxiliary agent and coloring agent, etc. are mixed according to the composition ratio in Table 1 and then added to the twin-screw extruder (screw diameter 35mm, aspect ratio L / D= 36) In the main cylinder. 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.

[0046] Table 1:

[0047] composition

[0048] composition

[0049] As can be seen from Table 1, the surface res...

Embodiment 4-8

[0051]After drying PC resin, ASA, SAN, SMI, antistatic agent, auxiliary agent and coloring agent etc. are mixed according to the composition ratio in Table 2, join the twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D= 36) In the main cylinder. 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.

[0052] Table 2:

[0053] composition

Comparative example 2

Example 5

Example 6

Example 7

Example 8

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PUM

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Abstract

The invention discloses an antistatic and ultraviolet resistant PC/ASA material composition and belongs to the field of macromolecular composition materials. The composition is characterized by consisting of the following components in part by weight: 30 to 85 parts of polycarbonate, 5 to 30 parts of acrylonitrile-styrene-acrylic ester graft copolymer, 0 to 30 parts of acrylonitrile-styrene copolymer, 5 to 15 parts of macromolecular antistatic agent, 2 to 10 parts of compatilizer, 0.2 to 2 parts of light stabilizer and 0.2 to 1 part of antioxidant. The interior plastic parts of an automobile, which are made of the PC/ASA composition of the invention, have the advantages of high weather resistance, ultraviolet resistance and heat resistance, difficult adsorption of dust and the like, and can be used for manufacturing interior-exterior parts, such as automotive door plates and shells of inner-outer view mirrors, of various automobiles.

Description

technical field [0001] The invention relates to a polycarbonate (PC) / acrylonitrile-styrene-acrylate (ASA) composition, specifically an antistatic and anti-ultraviolet PC / ASA material composition, 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, 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. However, the thermal stability and UV resistance of polycarbonate are often affected by the addition of ABS graf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/00C08L77/12C08L77/00C08L67/00C08K5/3475C08K5/17C08K5/524
Inventor 陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES
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