Graphene modified antistatic polypropylene composite material and preparation method thereof

Abstract

The invention discloses a graphene modified antistatic polypropylene composite material and a preparation method thereof. The graphene modified antistatic polypropylene composite material is composedof the following raw materials in percentage by mass: 54-76% of polypropylene, 18-28% of an inorganic filler, 0.1-1.5% of graphene, 5-15% of a toughening agent, 0.2-1.5% of a coupling agent, 0.3-0.9%of an antioxidant, and 0.2-1% of a nucleating agent. The graphene modified antistatic polypropylene composite material has the advantages that after graphene is used for modifying the polypropylene composite material, the mechanical property of the polypropylene composite material is improved, meanwhile, the antistatic effect of polypropylene can be remarkably improved, the dust collection degreeis reduced, a workpiece is kept clean and attractive, the preparation process is simple, the cost is relatively low, and large-scale industrial production is easy to carry out.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a graphene-modified antistatic polypropylene composite material and a preparation method thereof. Background technique [0002] Plastic products have played an irreplaceable role in industrial production and daily life, but dust collection, electric shock, and even explosions caused by static electricity during their use have become urgent problems for the plastics industry to solve. Improving the antistatic performance of plastic products from the source, plastic antistatic modification has become one of the important directions of research on plastic modification. [0003] At present, the conventional antistatic modification methods mainly include the addition of conductive fillers and the addition of antistatic agents. Among them, the modification of conductive fillers (mainly including metal conductive fillers, carbon-based conductive fillers, etc.) The conductiv...

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Problems solved by technology

[0003] At present, the conventional antistatic modification methods mainly include the addition of conductive fillers and the addition of antistatic agents. Among them, the modification of conductive fillers (mainly including metal conductive fillers, carbon-based conductive fillers, etc.) The conductivity of the material is used to achieve the antistatic effect, and most antistatic agents have surface activity, and their hydrophilic groups can enhance the surface hygroscopicity of the composite material, and form a monolayer conductive film to accelerate the leakage of static charges. The field of application continues to expand, and the above single antistatic modification method is often difficult to meet the comprehensive performance requirements. For example, the addition of conductive fillers has a significant effect on the antistatic effect of the product, but due to the large amount of addition, it often gives composite materials The mechanical properties are adversely affected, and the use of antistatic agents also has problems such as large additions and non-permanent antistatics. The additions often exceed 20%. Therefore, how to significantly enhance the performance by adding a small amount of antistatic agents and conductive fillers The antistatic effect of plastic products, while improving other properties of plastic products, is one of the important trends in research in this field