Microstructure, Thermal Properties and Rheological Behavior of PLA/PCL Blends for Melt-blown Nonwovens

被引：9
|
作者：
Sun, Hui [1 ]
Yu, Bin [1 ]
Han, Jan [1 ]
Kong, Jinjin [1 ]
Meng, Lingrui [1 ]
Zhu, Feichao [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Natl & Local United Engn Key Lab Text Fiber Mat &, Hangzhou 310018, Zhejiang, Peoples R China
来源：
POLYMER-KOREA | 2014年 / 38卷 / 04期
基金：
中国国家自然科学基金;
关键词：
poly(lactic acid); poly(epsilon-caprolactone); microstructure; thermal properties; ALIPHATIC POLYESTERS; PHYSICAL-PROPERTIES; POLY(EPSILON-CAPROLACTONE); CRYSTALLIZATION; MORPHOLOGY;
D O I：
10.7317/pk.2014.38.4.477
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(lactic acid) (PLA) and poly(epsilon-caprolactone) (PCL) blends with various components for melt-blown nonwovens were prepared by a twin-screw extruder. Tributyl citrate (TBC) was added in order to improve the miscibility between PLA and PCL. The results showed that small circular particles of PCL were dispersed in PLA matrix uniformly. The addition of PCL had the heterogeneous nucleation effect on the crystallization of PLA and decreased thermal stability of PLA. The flow of pure PLA and blends approached to Newtonian liquid at a low shear rate and expressed more obvious viscoelasticity at a high shear rate.
引用
收藏
页码：477 / 483
页数：7
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