High gloss, high hardness and uvioresistant polycarbonate plastic alloy

A polycarbonate plastic, polycarbonate technology, applied in the field of high gloss, high hardness, polycarbonate plastic, anti-ultraviolet polycarbonate plastic, can solve the problem of non-abrasion resistance, low surface hardness of PC plastic, high gloss of PC plastic , low light resistance and other problems, to achieve the effect of good fluidity, good fluidity, and high surface hardness

Active Publication Date: 2009-07-01
CHONGQNG PRET NEW MATERIAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the PC/ABS alloy melt has low viscosity, good processing performance, high impact strength and other good comprehensive properties, it has little impr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1

[0038] After drying PC resin, styrene copolymer resin, acrylate graft rubber, coloring agent and other auxiliary agents are mixed according to the composition ratio in Table 1, they are added to a 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 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.

[0039] Table 1:

[0040] composition Comparative example 1 Example 1 Example 2 Example 3 Example 4 ...

Embodiment 5-8 and comparative example 2

[0044] After drying PC resin, styrene copolymer resin, acrylate graft rubber, coloring agent and other auxiliary agents are mixed according to the composition ratio in Table 1, they are added to a 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 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.

[0045] Table 2:

[0046] composition Comparative example 2 Example 5 Example 6 Example 7 Example 8 ...

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PUM

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Abstract

The invention relates to a polycarbonate plastic alloy composition with high gloss, high hardness and ultraviolet resistance, which comprises polycarbonate, phenethylene based resin, methacrylic ester resin, acrylate grafting rubber and other fillers. The components have the following weight portion: 40 to 80 portions of the polycarbonate, 10 to 25 portions of the methacrylic ester resin, 5 to 20 portions of the phenethylene based resin, and 5 to 15 portions of acrylate elastomer. The PC plastic alloy has the advantages of high gloss, high impact resistance, high surface hardness and good fluidity, can save processes of surface spray painting and coating, and can be used for shells of automotive instrument displays and household appliances such as mobile phones, mobile DVD electronic products, televisions, liquid crystal displays and the like.

Description

technical field [0001] The invention relates to a polycarbonate (PC) plastic, in particular to a high-gloss, high-hardness, ultraviolet-resistant polycarbonate (PC) plastic, which belongs 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 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. Although the PC / ABS alloy melt has low viscosity, good processability, high impact strength and other good c...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L33/10C08L25/12C08L51/00
Inventor 陈永东李文龙张祥福周文
Owner CHONGQNG PRET NEW MATERIAL
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