HIPS-based conductive master batch based on carbon nanotube and graphene compound system and preparation method of HIPS-based conductive master batch

Abstract

The invention provides HIPS-based conductive master batch based on a carbon nanotube and graphene compound system and a preparation method of the HIPS-based conductive master batch. Firstly, carbon nanotubes and graphene are uniformly dispersed in a volatile inert solvent and treated by an ultrasonic treatment device for 1 h, the treated dispersion solution and raw materials are stirred in a high-speed stirrer in proportion, the obtained material is mixed with a compatilizer in a certain proportion at the room temperature, melt extrusion is performed through double screws, and the conductive master batch is prepared. The prepared composite has excellent conductivity, is easy to add and can be widely applied to fields of injection molding, extrusion, modification and the like.

Description

technical field [0001] The invention belongs to the field of macromolecules, and in particular relates to a conductive masterbatch of a HIPS substrate based on a compound system of carbon nanotubes and graphene and a preparation method thereof. Background technique [0002] HIPS is a widely used plastic raw material. It is widely used in electronic packaging, home appliances, boards, carrier tapes and other fields. It has the characteristics of good processability and beautiful appearance. However, plastics are generally insulated. With the development of society and the advancement of science and technology, the application range of plastics has become wider and wider, and people's requirements have become higher and higher. However, the insulation will cause the electrostatic charge accumulated on the surface of plastic products to be unable to be recovered. Release, and then form a static voltage, which is easy to absorb dust and other dirt. When the static voltage reache...

AI Technical Summary

Problems solved by technology

Conductive additives have inorganic and organic structures: organic conductive agents have excellent compatibility with plastics, but there are also some removal points, such as iodine-doped polyacetylene, after 1000 h exposure in air, its antistatic rate will drop by one order of magnitude, and iodine-doped polyphenylene vinylene basically loses its antistatic properties after being exposed to air for 250 h; inorganic conductive additives are generally dispersed in plastics to form a through / semi-through structure to obtain conductive and antistatic properties. Composite materials have a fatal shortcoming, that is, poor dispersion, especially nanostructured carbon nanotubes and graphene

[0004] As a new type of nanomaterial with the strongest electrical and thermal conductivity found so far, adding a small amount of carbon nanotubes and graphene to the plastic can theoretically make the plastic have good antistatic properties; There is a strong van der Waals force between them, so it is extremely difficult to disperse

How to effectively disperse carbon materials in composite materials has become a hot spot in the research of antistatic and even conductive materials, and there is no effective solution for this in the existing technology

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