摘要
用激光散射技术跟踪测定了两种不同分子量的聚氨酯（ＰＵ），在用己二胺（ＨＤ）及丁二醇（ＢＤ）扩链剂时，于单轴拉伸过程中的激光散射行为。揭示拉伸行为及断裂伸长率呈规律性变化，并与溶胀动力学、力学强度等测定方法所得结果十分吻合。
The H_v patterns of PU with different molecular weight and extender were taken photographically during stretching by laser light scattering. The regualr changes of stretching behavior, which were agree with the properties of swelling and mechanics, were observed. The knowlege of relationship between structure and property for PU with extender was further undersood.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1995年第6期82-85,共4页
Polymer Materials Science & Engineering
关键词
激光散射
拉伸
聚氨酯
扩链剂
s: laser light scattering, stretch,polyurethane, extender
