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Опубликовано 2011-05-14 Опубликовано на SciPeople2011-11-12 11:05:32 ЖурналInternational Polymer Science and Technology

How the curing agent and the molecular weight of Krasol LBH oligobutadienediols affect the structure and the physical, mechanical and dynamic properties of polyurethane elastomers

Novakov I. A., Nistratov A. V., Medvedev V. P., Pyl'nov D. V., Agaeva V. B., Lymareva P. N., Gusina S. Y. / Дмитрий Пыльнов

Аннотация A study was conducted of the influence of the curing agent and the molec.wt. of Krasol LBH oligobutadienediols on the structure of the spatial network and on the physical, mechanical and dynamic elastic-hysteresis and relaxation characteristics of 'cold'-cured PU elastomers. Krasol-2000, -3000, -5000 and -10000 were used and the curing was carried out using polymethylene polyphenyl isocyanate, glycerol and dibutyl tin dilaurate. The optimum properties achieved in this study were with polydiene urethanes cured at a reacting group ratio of NCO/(OH) of about 0.90 to 1.25 mol/mol. The use of the elastomers for manufacture of sports surfaces is mentioned.