PC/ABS modified alloy metal

An alloy and modification technology, which is applied in the field of plastic alloy materials, can solve the problems of environmental protection pressure and increase costs, achieve great economic benefits, improve surface hardness and flame retardancy, and have a wide range of applications

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 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

[0049] Weigh the following materials in proportion:

[0050] PC / ABS60

[0051] Polymethylmethacrylate 21

[0052] AS-g-MAH 3

[0053] MBS 5

[0054] Brominated polycarbonate (58% bromine) 5

[0055] Antimony trioxide 1.7

[0056] Acrylic Impact Modifier 4

[0057] Antioxidant 1076 0.3

[0058] 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 obtained product according to the national standard and measure the melt mass flow rate (MFR) of the product according to the national standard GB / T3682-2000. The results are compared with the performance of PC / ABS raw materials before improvement. Table 1 shows...

Embodiment 2

[0062] Weigh the following materials in proportion:

[0063] PC / ABS64.5

[0064] Polymethylmethacrylate 16.1

[0065] AS-g-MAH 2

[0066] MBS 6

[0067] Brominated polycarbonate (58% bromine) 6

[0068] Antimony trioxide 2

[0069] Acrylic Impact Modifier 3

[0070] Antioxidant 1076 0.4

[0071] 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 obtained product according to the national standard and measure the melt mass flow rate (MFR) of the product according to the national standard GB / T3682-2000. The results are compared with the performance of PC / ABS raw materials before improvement. Table 2 sho...

Embodiment 3

[0075] Weigh the following materials in proportion:

[0076] PC / ABS 72

[0077] Polymethylmethacrylate 14

[0078] AS-g-MAH 2

[0079] MBS 4.5

[0080] Brominated polycarbonate (58% bromine) 4

[0081] Antimony trioxide 1.3

[0082] Acrylic Impact Modifier 2

[0083] Antioxidant 1076 0.2

[0084] 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 obtained product according to the national standard and measure the melt mass flow rate (MFR) of the product according to the national standard GB / T3682-2000. The results are compared with the performance of PC / ABS raw materials before improvement. Table 3 sh...

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PUM

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Abstract

The invention provides a PC / ABS modified alloy which essentially comprises the raw material components of mass fraction compounding ratio: 60 to 75 for PC / ABS, 12 to 21 for polymethyl methacrylate, 1 to 4 for compatilizer, 4 to 8 for plasticizer, 4 to 8 for bromide fire retardant, 1 to 3 for stibium fire retardant, 2 to 5 for acrylic impact modifiers, and 0.2 to 0.5 for oxidation inhibitor. The PC / ABS modified alloy of the invention makes use of adding harden stiffening agent, compatible plasticizer in the mixing process to improve the surface hardness of the PC / ABS alloy as well as to further achieve the surface hardness and fire resistance on the basis of PC / ABS alloy mechanical properties without change, and meets the technological requirement. As a result, the PC / ABS alloy has the larger utilization scale with more economic benefits. Besides, the PC / ABS modified alloy avoids employing paint spray to provide surface hardness, which is beneficial for environment protective.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a plastic alloy material. Background technique [0002] PC / ABS resin is an engineering material 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 advantages of easy processability and low price of ABS resin. , with good comprehensive performance and reasonable cost performance, it can be widely used in the fields of automobile industry, household appliances and so on. [0003] Since 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 surface hardness and flame retardancy. In the past, the method of surface spraying was used to improve the surface hardness, but surface spraying not only incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K5/109C08L33/12C08K3/22
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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