聚氨酯/乙烯基酯树脂互穿聚合物网络泡沫性能研究  

STUDY ON THE SOLID FOAM OF PROPERTIES OF POLYURETHANE/VINYL ESTER RESIN INTERPENETRATING POLYMER NETWORKS

作　　者：尚蕾[1] 张长生[1] 钟发春[1] 陆雯[1] 

机构地区：[1]中国工程物理研究院化工材料所,四川绵阳621900

出　　处：《热固性树脂》2003年第2期5-7,共3页Thermosetting Resin

摘　　要：研究了两种不同固化体系对乙烯基酯树脂(VER)的固化和对聚氨酯(PU)网络的匹配,以及单体结构和配比对PU/VERIPN硬质泡沫塑料力学性能和阻尼性能的影响规律。确定了过氧化二苯甲酰和N,N-二甲基苯胺合用的固化剂体系。实验表明,增加IPN中PU网络的高羟值聚醚(N303)的添加量,PU/VERIPN泡沫材料的压缩强度和压缩模量增大,冲击强度下降。S组的泡沫塑料的VER和PU具有较好的相容性,其Tanδ曲线出现一个很宽的阻尼平台,表现出较好的低温阻尼性能。Two different curing systems which cured the vinyl ester resin (VER) and to coordinated the polyurethane (PU) in interpenetrating polymer network (IPN) were investigated.The curing systems were chosen to contain benzoyl peroxide and N,N-dimethyl aniline properly.The effects of two monomers with different structure and proportion on damping and mechanical properties of the solid foam of PU/VER IPN were studied.It showed that compress strength and compress modulus increased with the increasing of the polyol N303 proportion in IPN foams,but impact strength decreased reversely.Some IPN foams of these experimental examples displayed good damping property at low temperature.

关 键 词：聚氨酯 乙烯基酯树脂 泡沫塑料 力学性能 阻尼性能 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]