摘要
研究了二醋酸纤维素（CA）与己内酯—环氧丙烷共聚物膜的生物降解过程。发现共混物膜的生物降解性能与其组成密切相关。共混膜的降解速率随着己内酯—环氧丙烷共聚物含量的增加而加快。共混物膜的生物降解是从表面开始进行的，并逐步深入到共混物膜的内部。在降解过程中，分子量较小的部分首先开始降解，而且降解的速度较高。分子量高的部分降解较慢，控制着整个共混膜的降解速率。
The biodegration of the blending flims of cellulese acetate(CA)and co-poly (capro-lactone-epoxy propane)was Studied. It was found that the biodegradation of the blending films isclosely related with the composition of the blends-The biodegradation of the blends increases withincreasing co-poy(caprolactone-epoxy propane) .The biodegradation occurs from the surface offilms and is gradually developed to the inside of them. The biodegradation of the part with the low-er molecular weight is easier and faster than that with the higher molecular weight and the rate ofthe biodegrdation of the blending films is controlled by the degradation of the part with the highermoecular weight.
出处
《纤维素科学与技术》
CAS
CSCD
1999年第1期28-32,共5页
Journal of Cellulose Science and Technology
基金
广东省科学基金
关键词
二醋酸纤维素
己内酯
环氧丙烷
共混膜
生物降解
cellulose acetate, co-poly (caprolactone-epoxy propane), blending filme, biodegra-dation
