Characterization of the thermal properties of PLA fibers by modulated differential scanning calorimetry

被引：174

作者：

Solarski, S ^{[1
]}

Ferreira, M ^{[1
]}

Devaux, E ^{[1
]}

机构：

[1] ENSAIT, Lab Gen & Mat Text, UPRES, F-59056 Nantes, France

来源：

POLYMER | 2005年 / 46卷 / 25期

关键词：

modulated differential scanning calorimetry (MDSC); fibers; PLA;

D O I：

10.1016/j.polymer.2005.10.027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polylactide (PLA) has been Melt Spun to produce multifilament continuous yarns. The thermal characteristics of PLA filaments have been investigated using modulated differential scanning calorimetry (MDSC). With MDSC, it is possible to separate the different thermal events and to analyze them more precisely. The influence of hot drawing on thermal properties of PLA filaments has been Studied. Hot drawing promotes all increase of glass transition temperature (T-g) and a decrease of heat capacity. The cold crystallization spreads oil a larger range of temperature and the peak occurs at a lower temperature. The initial degrees of cristallinity of PLA filaments have been calculated thanks to the reversing and non reversing curves of MDSC. Tensile properties of PLA filaments are also investigated. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：11187 / 11192

页数：6

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