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A modified graphene-carbon nanotube filled pc/abs composite material and preparation method thereof

A technology of composite materials and carbon nanotubes, which is applied in the field of engineering plastics, can solve problems such as poor compatibility and poor surface finish, and achieve the effects of improving compatibility, improving mechanical properties and electrical conductivity, and uniform dispersion

Inactive Publication Date: 2020-07-10
HUBEI YUNLAI PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of existing PC / ABS resins such as poor compatibility, delamination, and poor surface finish, and provide a PC / ABS composite material filled with modified graphene-carbon nanotubes and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A PC / ABS composite material filled with modified graphene-carbon nanotubes, made of the following raw materials in parts by weight: 70 parts of PC110, 30 parts of ABS757K, 30 parts of compatibilizer EM500 or MBS701, masterbatch 10 parts, 6 parts of the modified graphene mixture, and a silane coupling agent Si550 equivalent to 0.1% of the total weight of the composite material. The preparation method of this composite material is as follows:

[0017] In the first step, graphene and carbon nanotubes are mixed evenly at a mass ratio of 1:1, and the mixture is added to a concentrated sulfuric acid solution with a mass fraction of 82% and stirred at room temperature for 7-14 minutes, diluted with water and filtered, and the filter residue is washed with 0.1- Wash with 0.3mol / L NaOH solution several times, then wash with water until neutral, disperse the filter residue in ethanol solution with a volume fraction of 60%, stir and place in refrigerated environment at 0-4°C for 1...

Embodiment 2

[0020] A PC / ABS composite material filled with modified graphene-carbon nanotubes, made of the following raw materials in parts by weight: 70 parts of PC110, 30 parts of ABS757K, 30 parts of compatibilizer EM500 or MBS701, masterbatch 15 parts, 9 parts of the modified graphene mixture, and the silane coupling agent Si550 equivalent to 0.1% of the total weight of the composite material. The preparation method of this composite material is as follows:

[0021] In the first step, graphene and carbon nanotubes are mixed evenly at a mass ratio of 1:3, and the mixture is added to a concentrated sulfuric acid solution with a mass fraction of 85% and stirred at room temperature for 7-14 minutes, diluted with water and filtered, and the filter residue is washed with 0.1- Wash with 0.3mol / L NaOH solution several times, then wash with water until neutral, disperse the filter residue in ethanol solution with a volume fraction of 50%, stir and place in refrigerated environment at 0-4°C for...

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PUM

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Abstract

The invention relates to a PC / ABS composite material filled with modified graphene / carbon nano tubes and a preparation method of same. The composite material includes, by weight, 70 parts of PC, 30 parts of ABS, 30 parts of a compatilizer, 10-20 parts of color master batch, and 6-12 parts of a modified graphene mixture, and a silane coupling agent, which accounts for 0.1% of total weight of the composite material. The composite material is prepared by mixing the components and performing melting granulation. The composite material has good compatibility, is free of layering, has excellent comprehensive performance and is good in surface quality of an injection-moulded product.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a PC / ABS composite material filled with modified graphene-carbon nanotubes and a preparation method thereof. Background technique [0002] PC / ABS resin is a thermoplastic engineering plastic mixed with polycarbonate and acrylonitrile-butadiene-styrene copolymer, which combines the comprehensive characteristics of PC and ABS, such as the easy processing characteristics of ABS and the excellent properties of PC. Mechanical properties and thermal stability, the ratio of the two will affect the thermal stability of PC / ABS materials. PC / ABS, as the commercialized polymer alloy with the largest sales volume in the world, has been growing at a demand rate of about 10% in recent years. Compared with PC, PC / ABS improves fluidity, improves processing performance, and reduces the sensitivity of products to stress. PC / ABS resin is widely used in industry, and it is more common...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/06C08K9/02C08K3/04C08K7/24
CPCC08K2201/001C08K2201/011C08L69/00C08L2205/03C08L2205/08C08L55/02C08K13/06C08K9/02C08K3/04C08K7/24
Inventor 卢运来
Owner HUBEI YUNLAI PLASTIC TECH