| 摘要 |
FIELD: chemistry.SUBSTANCE: invention can be used in chemical and pulp and paper industry. Boot press belt contains polyurethane polymer, obtained from urethane prepolymer, which contains isocyanate groups, and mixtures of chain extenders. Urethane prepolymer is obtained with application of 1,4-phenylene diisocyanate (PPDI) and mixture of chain extenders contains methyl-bis-(3-chloro-2.6-diethylanilin) (MCDEA).EFFECT: claimed invention makes it possible to improve belt heat resistance, as well as wear resistance and compression elasticity, thus increasing its service term.5 cl, 1 tbl |
