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Modified PC/ABS alloy

An alloy and modification technology, applied in the polymer field, can solve the problems of environmental protection pressure and increase cost, and achieve the effect of improving surface hardness, improving surface hardness and wide application.

Inactive Publication Date: 2008-01-30
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the method of surface spraying was used to improve the surface hardness, but the surface spraying not only increases the cost but also puts a certain pressure on environmental protection. Therefore, it is very important to research and develop high-hardness flame-retardant PC / ABS alloys.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Weigh the following materials in proportion:

[0046] PC / ABS66

[0047] Talc 20

[0048] Coupling agent KH550 1

[0049] Tetrabromobisphenol A 5

[0050] Antimony trioxide 1.5

[0051] MBS 6

[0052] Antioxidant 1010 0.5

[0053] Then the blended material is mixed and granulated in an extruder, and the resulting mixed and granulated product is made into a finished product by injection molding. Finally, the mechanical properties of the finished product are tested according to the national standard GB13525 / T-92 and the UL94 standard of the American Electrotechnical Association. Test its flame retardant performance, and test the pencil hardness of the finished product according to the national standard and measure the melt mass flow rate (MFR) of the finished product according to the national standard GB / T3682-2000. The results are compared with the related performance of PC / ABS raw materials before improvement. Table 1 shows.

[0054] Table 1: Performance compariso...

Embodiment 2

[0057] Weigh the following materials in proportion:

[0058] PC / ABS 72

[0059] Talc 14

[0060] Coupling agent KH550 0.8

[0061] Tetrabromobisphenol A 7.5

[0062] Antimony trioxide 2.5

[0063] MBS 3

[0064] Antioxidant 1010 0.2

[0065] Then the blended material is mixed and granulated in an extruder, and the resulting mixed and granulated product is made into a finished product by injection molding. Finally, the mechanical properties of the finished product are tested according to the national standard GB13525 / T-92 and the UL94 standard of the American Electrotechnical Association. Test its flame retardant performance, and test the pencil hardness of the finished product according to the national standard and measure the melt mass flow rate (MFR) of the finished product according to the national standard GB / T3682-2000. The results are compared with the related performance of PC / ABS raw materials before improvement. Table 2 shows.

[0066] Table 2: Performance comp...

Embodiment 3

[0069] Weigh the following materials in proportion:

[0070] PC / ABS76.5

[0071] Talc powder 10

[0072] Coupling agent KH550 0.5

[0073] Tetrabromobisphenol A 8

[0074] Antimony trioxide 2.7

[0075] MBS 2

[0076] Antioxidant 1010 0.3

[0077] Then the blended material is mixed and granulated in an extruder, and the resulting mixed and granulated product is made into a finished product by injection molding. Finally, the mechanical properties of the finished product are tested according to the national standard GB13525 / T-92 and the UL94 standard of the American Electrotechnical Association. Test its flame retardant performance, and test the pencil hardness of the finished product according to the national standard and measure the melt mass flow rate (MFR) of the finished product according to the national standard GB / T3682-2000. The results are compared with the related performance of PC / ABS raw materials before improvement. Table 3 shows.

[0078] Table 3: Performanc...

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PUM

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Abstract

A modified PC / ABS alloy essentially consists of the following in mass fraction: 65 to 85 for PC / ABS, 10 to 20 for stiffening agent, 0.5 to 1 for coupling agent, 5 to 10 for bromide fire retardant, 1 to 3 for stibium fire retardant, 1 to 6 for plasticizer, and 0.2 to 0.5 for oxidation inhibitor. By adding harden stiffening agent, plasticizer and fire retardant in the mixing process, the modified PC / ABS of the invention improves the surface hardness of the PC / ABS alloy as well as to further achieve the surface hardness and fire resistance and meets the technological requirement with little changing of the mechanical properties of PC / ABS, thus widening the application of PC / ABS alloy.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a PC / ABS alloy. Background technique [0002] PC / ABS alloy resin is a kind of engineering plastic with better comprehensive performance developed in the mid-1960s. It not only has the heat resistance, mechanical strength and dimensional stability of PC, but also has the ease of processing and low price of ABS resin. Advantages, good comprehensive performance, reasonable cost performance, and can be widely used in the automotive industry, household appliances and other fields. [0003] When PC / ABS alloy is widely used in the panels of electronic and electrical products, in order to maintain the long-term aesthetic appearance and safety and fireproof performance, new requirements are put forward for its surface hardness and flame retardancy. In the past, the method of surface spraying was used to improve the surface hardness, but the surface spraying not only increases the cost b...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K5/02C08L33/10
Inventor 汪克风岳瑟杨得志刘济林
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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