SIBR integrated rubber containing amino group, integrated rubber composite material and preparation method thereof

Abstract

The invention relates to SIBR integrated rubber containing an amino group, an integrated rubber composite material and a preparation method thereof. The SIBR integrated rubber is a quadripolymer of styrene, isoprene, butadiene and an amino group-containing monomer 1,1-diphenylethylene derivative initiated by alkyl lithium, and a polymer chain contains not less than 3 amino functionalized diphenylethylene derivative units. Amino on the introduced diphenylethylene derivative and hydroxyl on the surface of reinforcing filler carbon black or white carbon black can form a strong filler network locally on the rubber material in the form of ionic bonds or hydrogen bonds, meanwhile, introduction of an amino functional group can passivate the movement ability of a rubber molecular chain so as to limit movement friction heat generation of a macromolecular chain end, finally, the purposes of reducing internal friction heat generation of the tire and improving the reinforcing effect of the carbon black and the white carbon black are achieved, and the rubber composite material is endowed with the properties of high modulus and low energy consumption. The SIBR integrated rubber is simple and easy to implement, low in cost, easy to industrialize and wide in application range, and has good economic benefits and social effects.

Description

technical field

[0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to an SIBR integrated rubber containing amino groups, an integrated rubber composite material and a preparation method thereof. Background technique

[0002] Tread rubber, as an important part of the tire in direct contact with the ground, is one of the key components for preparing double B-grade tires. At present, the commonly used tire tread rubbers include styrene-butadiene rubber, butadiene rubber, and natural rubber. These general-purpose tread rubbers often have some shortcomings in low temperature resistance, wet skid resistance, and rolling resistance. The molecular chains of butadiene rubber and natural rubber are very supple, with low glass transition temperature, good low temperature resistance and low rolling resistance, but their wet skid resistance is not good; there are certain side groups on the molecular chain of styrene butadiene ru...

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