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ABS/POM alloy and preparation method thereof

An alloy and weight percentage technology, applied in the field of ABS/POM alloy and its preparation, can solve problems such as poor compatibility, achieve the effects of simple preparation process, easy control of production process, and improved compatibility

Inactive Publication Date: 2015-01-21
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compatibility between ABS and POM is very bad. There are relatively few descriptions of POM / ABS alloys invented at home and abroad, especially the high-impact POM / ABS alloys have not appeared.

Method used

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  • ABS/POM alloy and preparation method thereof
  • ABS/POM alloy and preparation method thereof
  • ABS/POM alloy and preparation method thereof

Examples

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Effect test

preparation example Construction

[0046] The preparation method of ABS grafted maleic anhydride of the present invention is as follows; Mix the raw materials of the following weight percentages, and extrude the reaction at a temperature of 140-200 ° C to obtain a compatibilizer,

[0047]

[0048] The preparation method of SEBS grafted maleic anhydride is as follows; the raw materials in the following weight percentages are mixed, and the extrusion reaction is carried out at a temperature of 160-200 ° C to obtain a compatibilizer,

[0049]

[0050] Because the compatibility of ABS and POM is very bad, but use ABS grafted maleic anhydride and SEBS grafted maleic anhydride as compatibilizer in the present invention, make the compatibility of its alloy be improved, in the TPU as a toughening agent makes the whole alloy have a significant improvement in toughness.

[0051] The preparation process of ABS / POM alloy of the present invention is as follows:

[0052] (1) Weigh raw materials according to weight per...

Embodiment 1

[0066] Polyoxymethylene 79.3%; nucleating agent - long chain carboxylic acid calcium salt 0.1%; ABS 10%; stabilizer - melamine urate 0.1%; compatibilizer 5%; toughening agent - polyurethane elastomer 5%; antioxidant Agent 0.2%; lubricant 0.3%. It is extruded by a twin-screw extruder with a melting temperature of 150-200°C and pelletized.

[0067] The temperature of each section is: 150°C in the first zone, 180°C in the second zone, 185°C in the third zone, 190°C in the fourth zone, and 180°C in the fifth zone. The conveying time of the mixture in the screw is 90 seconds.

Embodiment 2

[0069] Polyoxymethylene 74.3%; nucleating agent - long chain carboxylic acid calcium salt 0.1%; ABS 10%; stabilizer - melamine urate 0.1%; compatibilizer 5%; toughening agent - polyurethane elastomer 10%; antioxidant 0.2% agent; 0.3% lubricant; extruded by a twin-screw extruder with a melting temperature of 150-200°C, and pelletized.

[0070] The temperature of each section is: 150°C in the first zone, 180°C in the second zone, 185°C in the third zone, 190°C in the fourth zone, and 180°C in the fifth zone. The conveying time of the mixture in the screw is 90 seconds.

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Abstract

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) / POM (Polyoxymethylene) alloy and a preparation method thereof. The ABS / POM alloy comprises the following components by weight percent: 65-80 percent of POM, 0.1-0.5 percent of long-chain carboxylic acid calcium salt, 8-20 percent of ABS, 0.1-1 percent of melamine urate, 4-9 percent of compatilizer, 5-16 percent of flexibilizer, 0.1-1 percent of antioxygen and 0.1-5 percent of lubricant, wherein the compatilizer is compounded by ABS grafted maleic anhydride and SEBS grafted maleic anhydride; and the flexibilizer is thermoplastic polyurethane elastomer. The compatibility of POM and ABS is improved through compounding the ABS grafted maleic anhydride and the SEBS grafted maleic anhydride, and the impact property of the alloy is further improved by adopting the polyurethane elastomer as the flexibilizer.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to an ABS / POM alloy and a preparation method thereof. [Background technique] [0002] POM (polyoxymethylene) resin is one of the five general-purpose engineering plastics. And there are more and more applications in automobiles, so it is obviously not enough for the modified POM on the market to satisfy customers, so the diversification of POM alloys is more and more necessary, such as POM / PP, POM / ABS, POM / AS, etc., design different alloys according to customer requirements. It is the appearance of alloys that makes it possible for one material to fail to meet customer requirements, but there are many problems in the design of alloys. Among them The most important problem is the compatibility of two different molecular structures. The quality of compatibility also directly affects the performance of the alloy. The most significant problem is the impact performance. The impact st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L59/02C08L55/02C08L51/00C08F285/00C08F287/00C08K13/02C08K5/098C08K5/3492B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C48/04B29C48/40
Inventor 徐东徐永罗彧斌
Owner ANHUI KEJU NEW MATERIALS
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