Crystallization kinetics of poly(lactic acid)-talc composites

被引：283

作者：

Battegazzore, D. ^{[1
]}

Bocchini, S. ^{[1
]}

Frache, A. ^{[1
]}

机构：

[1] Politecn Torino, I-15100 Alessandria, Italy

来源：

EXPRESS POLYMER LETTERS | 2011年 / 5卷 / 10期

关键词：

thermal properties; crystallization; polylactic acid; mechanical properties; polymer composites; POLY(L-LACTIC ACID); CRYSTAL-STRUCTURE; PHASE-CHANGE; TALC; MORPHOLOGIES; NUCLEATION; BEHAVIOR;

D O I：

10.3144/expresspolymlett.2011.84

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The crystallization kinetics of poly(lactic acid) / talc composites were determined over a range of 0 to 15 wt% of talc. Talc was found to change the crystallization kinetics. The presence of talc increases the crystallization rate and this increase is related to talc concentration and to crystallization temperature. In order to understand the effect of talc and PLA crystallinity on mechanical properties, dynamic mechanical thermal analyses were performed on poly(lactic acid) / talc composites before and after an annealing process. It was demonstrated that the presence of crystals improves thermo-mechanical properties but in order to achieve good results at high temperatures the reinforcing effect of a filler such as talc is necessary.

引用

页码：849 / 858

页数：10

共 26 条

[21] Crystalline structure of annealed polylactic acid and its relation to processing [J].