High-strength heat-resistant polyethylene material and preparation method thereof

Abstract

The invention discloses a high-strength heat-resistant polyethylene material and a preparation method thereof. The high-strength heat-resistant polyethylene material is prepared from the following raw materials in parts by weight: 55 to 75 parts of polyethylene resin, 20 to 40 parts of maleic anhydride grafted polypropylene, 5 to 15 parts of silicon-containing aryne resin, 15 to 25 parts of heat-resistant modified filler, 5 to 10 parts of nano zirconium carbide, 3 to 8 parts of modified carbon nanotubes, 5 to 15 parts of graphene, 0.5 to 5 parts of antioxidant, 2 to 8 parts of polyethylene wax, 5 to 12 parts of basalt fiber powder, 2 to 5 parts of a rare earth compound, 3 to 6 parts of a flexibilizer and 2 to 5 parts of a compatilizer. On the premise of ensuring that the polyethylene material has certain tensile strength and bending strength, the heat resistance of the polyethylene material is greatly improved, and the polyethylene wax and the compatilizer are added, so that the bonding condition of a two-phase interface in a blending system can be improved, and the stability of the multiphase system between various inorganic fillers and resin is realized.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-strength heat-resistant polyethylene material and a preparation method thereof. Background technique [0002] Polyethylene is a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance, good chemical stability, and can withstand most acid and alkali erosion. It is insoluble in common solvents at room temperature, with low water absorption and excellent electrical insulation. Heat-resistant polyethylene is a medium-density polyethylene produced by special molecular design and synthesis process. According to different comonomers, it is divided into three types of heat-resistant polyethylene: ethylene and octene copolymerization, ethylene and hexene copolymerization, and ethylene and ...

AI Technical Summary

Problems solved by technology

The above-mentioned patented raw materials have a compounding effect to enhance the strength and heat resistance of polyethylene materials, and solve the problems of low strength and poor heat resistance of polyethylene materials

However, the inorganic fillers used in the above patents will affect and can significantly reduce the strength and mechanical processing properties of the material to a certain extent.