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Light glass fiber reinforced ABS composite board material and board preparation method

A composite sheet and ABS plastic technology, applied in the field of polymer composite materials, can solve the problems of high cost of supercritical equipment and unfavorable large-scale promotion, and achieve the effects of uniform cells, short production cycle and simple process flow

Pending Publication Date: 2021-07-27
快思瑞科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although a network structure composed of micropores of about 600nm and nanopores of 100nm can be formed inside the material, the cost of supercritical equipment used in the preparation process of this technology is high, which is not conducive to the large-scale promotion of this technology

Method used

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  • Light glass fiber reinforced ABS composite board material and board preparation method

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preparation example Construction

[0022] In one embodiment, a method for preparing a lightweight glass fiber reinforced ABS composite sheet is also provided, including:

[0023] Mix chopped glass fiber, ABS plastic powder, expandable microspheres and additives according to the above-mentioned parts by weight, add them to the stirring container, and prepare a suspension system with water as the dispersion medium. The rotation speed is 500-3000r / min, fully Stir for 10-40min, mix well;

[0024] The dispersed suspension system is filtered by suction, and the mixed material after suction filtration is dehydrated and dried at a drying temperature of 80-150°C for 60-120 minutes;

[0025] Place the dried material in a hot-pressing device at a temperature of 160-200°C for 1-10 minutes, and cut it after cooling to obtain a preformed GF / ABS plate;

[0026] Place the newly formed GF / ABS sheet in an oven for foaming at a temperature of 200-260°C and a time of 0.5-6 minutes to obtain a lightweight glass fiber reinforced AB...

Embodiment 1

[0029]The lightweight glass fiber reinforced ABS composite sheet material includes the following components by mass fraction: 30 parts of chopped glass fiber of 6 mm, 70 parts of ABS powder with an average particle size of 80-120 μm, 5 parts of expandable microspheres, dodecyl sulfate 1 part sodium, 1 part anionic polyacrylamide. The foaming temperature of the expandable microspheres in this embodiment is 210-230° C., the initiation temperature is 180-190° C., and the particle size is 10-30 μm.

[0030] The plate preparation method of lightweight glass fiber reinforced ABS composite plate comprises the following steps:

[0031] 1) Mix chopped glass fiber, ABS powder, microspheres and additives according to the above parts by weight, add them to the stirring container, and make a suspension system with water as the dispersion medium. Uniform;

[0032] 2) After the dispersed suspension system is filtered by suction, the mixed material after suction filtration is dehydrated and...

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Abstract

The invention provides a light glass fiber reinforced ABS composite board material and a board preparation method, and belongs to the field of polymer composites. The light glass fiber reinforced ABS composite board material is prepared from, by weight, 10-60 parts of chopped glass fibers, 40-90 parts of ABS plastic powder, 1-10 parts of expandable microspheres and 1-10 parts of an auxiliary agent, wherein the expandable microspheres are formed by wrapping a volatile expanding agent serving as a core agent in a shell formed by a polymer, the shell is formed by polymerizing a monomer mixture of polymerizable monomers, the polymerizable monomer is at least one of acrylonitrile, an acrylate monomer, an acrylamide monomer and an acrylic monomer, the mass ratio of an auxiliary agent A to an auxiliary agent B in the auxiliary agent is 1:(1-1.5), the auxiliary agent A is used for improving the dispersity of the raw materials in water, and the auxiliary agent B is used for increasing the interaction between the powdery raw material and the glass fiber and reducing the loss of the powdery raw material in the suction filtration process. According to the treatment scheme, the material density is effectively reduced under the condition that the mechanical strength is basically not reduced.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a light glass fiber reinforced ABS composite plate material and a light glass fiber reinforced ABS composite plate plate preparation method. Background technique [0002] Glass fiber reinforced ABS, while maintaining the original mechanical properties of ABS resin, can significantly improve its tensile strength, elastic modulus, dimensional stability, etc., and is widely used in household appliances, automobiles, instruments and meters and other fields. At present, in order to alleviate the shortage of resources, countries around the world have successively introduced policies and measures for energy conservation and emission reduction, among which lightweight is one of the important ways to achieve it. Therefore, lightweight glass fiber reinforced ABS material is an important direction for the future development of the automobile industry. [0003] On the premise of e...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08K7/14C08J9/32
CPCC08J9/32C08J9/0085C08J2203/22C08J2355/02
Inventor 李娟杨其健何志兰刘雪云
Owner 快思瑞科技(上海)有限公司
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