Styrene-butadiene rubber composite material for high-performance tire and preparation method thereof

Abstract

The invention discloses a styrene-butadiene rubber composite material for a high-performance tire. The styrene-butadiene rubber composite material comprises the following raw materials in parts by weight: 80-100 parts of powdered styrene-butadiene rubber, 8-13 parts of nano-loess powder, 15-20 parts of hydroxyl-terminated liquid styrene-butadiene rubber, 5-7 parts of montmorillonite, 13-20 parts of aluminum hydroxide, 18-23 parts of calcium sulfate whisker, 8-12 parts of furnace carbon black, 0.6-0.98 part of sulfur, 0.7-0.92 part of promotor, 0.23-0.5 part of 1,3-diphenylguanidine, 1-3 parts of zinc oxide, 1.5-2.4 parts of stearic acid and 2-3 parts of titanate coupling agent, wherein the content of styrene in the powdered styrene-butadiene rubber is 25-30%, and the Mooney viscosity of the powdered styrene-butadiene rubber (ML1+4, 100 DEG C) is 52-57; the content of styrene in the hydroxyl-terminated liquid styrene-butadiene rubber is 23.4-26.5%, and the viscosity of the hydroxyl-terminated liquid styrene-butadiene rubber is 14.4-16.2Pa.s. The invention also discloses a preparation method of the styrene-butadiene rubber composite material for the high-performance tire.

Description

technical field [0001] The invention relates to the technical field of styrene-butadiene rubber, in particular to a styrene-butadiene rubber composite material for high-performance tires and a preparation method thereof. Background technique [0002] Styrene-butadiene rubber (SBR), also known as polystyrene butadiene copolymer, its physical structure performance, processing performance and product performance are close to natural rubber, and some properties such as wear resistance, heat resistance, aging resistance and vulcanization speed are faster Natural rubber is more excellent and can be used together with natural rubber and various synthetic rubbers. Styrene-butadiene rubber is the most produced general-purpose synthetic rubber, including emulsion polystyrene butadiene rubber and solution polystyrene butadiene rubber. Styrene-butadiene rubber is a light yellow-brown elastic solid. The density increases with the increase of styrene content. It has poor oil resistance bu...

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Problems solved by technology

At the same time, this product can also be used for the modification of rubber products, plastic products, petroleum resins, etc., and is widely used in the fields of tires, tapes, hoses, wires and cables, medical appliances and various rubber products. The styrene-butadiene rubber material for tires still cannot meet the demand. How to prepare a high-performance styrene-butadiene rubber material for tires with high bearing strength, strong toughness, high hardness, anti-skid, and excellent heat resistance has become a technical problem that needs to be solved at present.

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