Beijing University of Chemical Tehcnology

Red Avenue New Materials Group Co., Ltd.

Lixin Mao

Jun Feng Liu

Jun Liu

Haifeng Wang

Liqun Zhang

Xiaohui Wu

Dong Dong

Bingyong Han

Xuan Qin

A solution polymerized styrene-butadiene rubber-polyurethane elastomer material and a preparation method thereof are provided. The elastomer material is prepared by performing cast molding on a soft segment and a hard segment in a mass ratio of 100:(20-50); the soft segment includes hydroxyl-terminated solution polymerized styrene-butadiene moiety rubber prepared by an anionic polymerization; the hard segment comprises isocyanate, a small-molecule polyol chain extender and a cross-linking agent; and the soft segment has a molecular weight of 1000-8000 and a glass-transition temperature of &#x2212;20&#xb0; C. to &#x2212;30&#xb0; C. According to the elastomer material in the disclosure, the hydroxyl-terminated solution polymerized styrene-butadiene rubber is introduced to serve as the soft segment on the basis of synthesis of the traditional polyurethane elastomer, so that the glass-transition temperature of the polyurethane elastomer is regulated, defects such as poor high temperature resistance and undesirable wet-skid resistant grip ability of an existing polyurethane tire are overcome.

Solution polymerized styrene-butadiene rubber-polyurethane elastomer material for high performance tire and preparation method thereof

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Beijing, China

Lixin Mao