A kind of graphene/glass fiber reinforced ABS composite material and preparation method thereof

Abstract

The invention discloses a graphene / glass fiber reinforced ABS composite. The graphene / glass fiber reinforced ABS composite comprises, by weight, 60-90 parts of ABS, 5-20 parts of epoxy resin, 0.01-5 parts of graphene, 1-6 parts of glass fibers, 0.01-0.1 part of a silane coupling agent, 1-2 parts of ethanol, 0.05-2 parts of antioxidant and 0.5-3 parts of compatible flexibilizer. The invention further discloses a preparation method of the graphene / glass fiber reinforced ABS composite. The graphene / glass fiber reinforced ABS composite prepared through the preparation method is simple in preparation process, and in addition, the experimental results show that heat stability, strength and toughness of the prepared graphene / glass fiber reinforced ABS composite are obviously improved; the fiber floatation phenomenon is effectively eliminated, and therefore practical application of the ABS composite can be expanded.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a graphene / glass fiber reinforced ABS composite material and a preparation method thereof. Background technique [0002] ABS (acrylonitrile-butadiene-styrene terpolymer) is a new general-purpose thermoplastic engineering plastic developed in the 1940s. It is a combination of styrene and acrylonitrile with a polybutadiene chain as the backbone. It is a heterogeneous polymer blended with graft copolymer, styrene and acrylonitrile copolymer. ABS has good comprehensive properties: chemical corrosion resistance, processing fluidity and high surface hardness, heat resistance, toughness, impact performance and rigidity. It has been widely used to make various machinery, equipment parts and components. The casing of electrical appliances and instruments. However, the large molding shrinkage, low heat distortion temperature and low bending strength of ABS bring certain difficulties to t...

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Problems solved by technology

[0004] Relevant studies have shown that the addition of graphene makes ABS composites have excellent mechanical, thermal, electrical and other comprehensive properties, but in the above preparation methods, directly incorporating graphene into the matrix is ​​not conducive to the dispersion and phase of graphene in the ABS matrix. Composite materials are prepared by graphene in-situ polymerization, coupling modification and other methods, the process is cumbersome in actual production, and the shape and performance changes of graphene are difficult to control

Graphene with a complete structure is composed of benzene rings, with high chemical stability, inert surface, and weak interaction with other media; and there is strong van der Waals force between graphene sheets, which is easy to agglomerate, which greatly limits its research and application; how to use efficient A simple and easy-to-implement method to achieve good dispersion of graphene in ABS materials is the key to preparing high-performance ABS / graphene nanocomposites

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