摘要
用示差扫描量热法 (DSC)研究了 3种不同分子量的尼龙 1 0 1 0样品的等温结晶行为 ,在所研究的温度范围内 ,尼龙 1 0 1 0的等温结晶过程符合 Avrami方程。Avrami指数约为 2 ,基本上与分子量及结晶温度无关。随着分子量的增大 ,尼龙 1 0 1 0结晶速率变慢 ,其片晶的侧面自由能增大。
The isothermal crystallization behaviors of nylon 1010 with different molecular weights were studied by DSC in this paper. Within the studied temperature scope, the isothermal crystallization behavior of nylon 1010 can be described by Avrami equation. The Avrami parameters are about 2 and independent of molecular weight and crystallization temperature. With the increase of molecular weight, the crystallization rate of nylon 1010 becomes slower and the folded chain surface energy accordingly increases.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2000年第2期121-124,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金!资助项目 (2 94741 63 )
关键词
尼龙1010
结晶度
分子量
恒温结晶
动力学
nylon 1010
crystallinity
isothermal crystallization
lamellae
sided and folded chain free energy
