摘要
Abstract
Casting two-component polyurethane elastomers were synthesized polytetramethylene ether glycols （PTMG）, 1,5-naphthalene diisocyanate （NDI）, 1,4-butanediol （BDO）, and trimethylolpropane （TMP） as the main precusors. The obtained polyurethane elastomers had superior mechanical properties, good flexibility at low temperature, low dynamic heat, and high storage modulus. With increasing NCO content, the platform modulus and hardness increased, the glass transition temperature of soft segments and the loss factor reduced, while tensile strength first increased and then decreased.关键词
1，5-萘二异氰酸酯/聚氨酯弹性体/热性能/力学性能Key words
1,5-naphthalene diisocyanate/polyurethane elastomer/thermal property/mechanicalproperty分类
化学化工
