Dynamic vulcanization thermoplastic elastomer material with excellent combination property and preparation thereof

Abstract

The invention relates to a dynamic thermoplastic vulcanizate material TPV with superior comprehensive performance, which is characterized by comprising the following raw materials by weight percentage: 15 to 30 percent of polypropylene, 30 to 50 percent of ethylene propylene terpolymer, 5 to 20 percent of ethylene-octene copolymer, 1 to 10 percent of styrene elastomer, 10 to 20 percent of plasticizer, 1 to 5 percent of polyethylene wax, 0.5 to 2 percent of vulcanizing agent, 0.5 to 2 percent of accelerating agent, 0.1 to 0.5 percent of antioxidant and 0.1 to 0.5 percent of lubricant. The preparation method comprises: weighing the raw materials according to the weight percentage; placing all the raw materials into a high-speed mixer and mixing the raw materials for 2 to 5 minutes; discharging the raw materials; and placing the uniformly mixed raw materials into a screw compressor for extrusion and granulation, wherein the rotating speed of the screw compressor is between 180 and 600 revolutions per minute, and the temperature is between 160 and 200 DEG C. The invention has the characteristics that the prepared thermoplastic elastomer material has high elasticity, overcomes the defect of poor elasticity of the prior TPV, and can be used in situations with high elasticity requirement and oil resistance.

Description

technical field [0001] The invention relates to a dynamically vulcanized thermoplastic elastomer material with excellent comprehensive performance and a preparation method thereof. The material can be used to manufacture production equipment, tools, instruments and other fields with oil resistance and high elasticity requirements, and belongs to the technical field of elastomer materials. Background technique [0002] Dynamically vulcanized thermoplastic elastomer (TPV) is a composite material in which micron-scale crosslinked rubber particles are dispersed in polyolefin resin, that is, the rubber phase is the dispersed phase, and the polyolefin phase is the continuous phase. At present, a variety of TPVs with excellent performance have appeared at home and abroad, and the scope of application has gradually expanded. However, due to the decrease in elasticity of TPV after cross-linking, there are relatively few high-elastic TPVs. Contents of the invention [0003] The purp...

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Problems solved by technology

At present, a variety of TPVs with excellent performance have appeared at home and abroad, and the scope of application has gradually expanded. However, due to the decrease in elasticity of TPV after cross-linking, there are relatively few high-elastic TPVs.