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High-brightness composite ABS (Acrylonitrile Butadiene Styrene) material and preparation method thereof

A technology of ABS material and high-speed mixer, which is applied in the field of ABS composite material and its preparation, can solve the problems of reduced impact resistance, unfavorable and impact of household appliance shell materials, and achieves the effects of good rigidity, excellent surface brightness, and thick material.

Inactive Publication Date: 2015-01-28
SUZHOU HECHANG POLYMERIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional modification method of high-gloss ABS is usually to improve the surface gloss of the composite by blending ABS and AS, but the disadvantage is that its impact resistance will be significantly reduced, which will adversely affect the housing materials of home appliances.

Method used

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  • High-brightness composite ABS (Acrylonitrile Butadiene Styrene) material and preparation method thereof

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preparation example Construction

[0021] The specific preparation process is: (1) uniform mixing of raw materials: according to the ratio, pre-mix ABS, PMMA, PC and alloy compatibilizer SMA in a high-speed mixer, and mix uniformly; Mixing in the machine: Add the mixture obtained in step (1) into the twin-screw extruder for mixing. The temperature of the twin-screw extruder is set between 190 and 230°C, and the speed of the twin-screw extruder is 360-360°C. 400rpm; (3) Extrude the obtained material, cool it, and cut it into pellets to obtain a high-brightness composite ABS material.

[0022] PMMA is a high-transparency, high-gloss amorphous material that has good compatibility with ABS. PC is a high-strength, high-gloss, high-heat-resistant transparent material that can form an alloy with ABS. The alloy has excellent mechanical properties and gloss.

[0023] PMMA is used in the composite material, which has high gloss, can improve the toughness of ABS, and can give the composite material moderate impact streng...

Embodiment 1

[0026] Mix 62 parts of ABS, 25 parts of PMMA, 8.2 parts of PC, 4 parts of SMA, and 0.8 parts of antioxidant in a high-speed mixer, then feed into a twin-screw extruder, and the blend is mixed in a twin-screw extruder For refining, the temperature of each section of the twin-screw extruder is set as T1=190°C, T2=200°C, T3=205°C, T4=215°C, T5=220°C, T6=220°C. The rotational speed of the twin-screw extruder is 400rpm, and finally extruded and granulated to finally obtain a high-gloss ABS compound for home appliance shells.

Embodiment 2

[0028] Mix 57 parts of ABS, 27.4 parts of PMMA, 10 parts of PC, 5 parts of SMA, and 0.6 parts of antioxidant in a high-speed mixer, then feed into a twin-screw extruder, and the blend is mixed in a twin-screw extruder For refining, the temperature of each section of the twin-screw extruder is set as T1=190°C, T2=200°C, T3=210°C, T4=220°C, T5=230°C, T6=220°C. The rotational speed of the twin-screw extruder is 390rpm, and finally extruded and granulated to finally obtain a high-gloss ABS compound for home appliance shells.

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Abstract

The invention relates to a high-brightness composite ABS (Acrylonitrile Butadiene Styrene) material and a preparation method thereof. The high-brightness composite ABS material comprises the following components: 55-62 percent of ABS, 25-30 percent of PMMA, 8-12 percent of PC, 4-6 percent of alloy compatilizer SMA and 0.4-0.8 percent of antioxidant. The process comprises the following steps: fully premixing the ABS, PMMA, PC and alloy compatilizer SMA in a high-speed mixer, and mixing to be uniform; adding the obtained mixture into a double-screw extruder for mixing, and setting the temperature of the double-screw extruder to be 190-230 DEG C, wherein the rotating speed of the double-screw extruder is 360-400 revolutions per minute; extruding the obtained materials, cooling, cutting grains, thereby obtaining the high-brightness composite ABS material. The high-brightness composite ABS material has excellent surface gloss, high rigidity and moderate toughness and has heat resistance which exceeds that of ABS. Moreover, the material is thick and heavy, the molding shrinkage is low, the forming and processing performance is high, and the material cost is relatively reduced.

Description

technical field [0001] The invention relates to an ABS composite material with high brightness, balanced mechanical properties and excellent molding processing performance used in the manufacture of home appliance shells and a preparation method thereof. Background technique [0002] Household appliance shell is a very important appearance part, and ABS is usually the most common material for home appliance shell, which has the remarkable characteristics of wide sources, moderate price, superior performance, and good molding performance. [0003] With the continuous improvement of people's living standards and aesthetics, the requirements for the appearance of home appliances are getting higher and higher. Although ordinary ABS can achieve higher gloss through surface coating, there are some difficult problems in the coating. , Such as environmental protection, cost issues, wear and tear and other issues. [0004] The traditional modification method of high-gloss ABS is usu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L33/12C08L69/00C08L35/06B29C47/92B29C48/92
Inventor 汪倩文
Owner SUZHOU HECHANG POLYMERIC MATERIALS
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