Approaches on the Complex Crystallization in PLA/Babassu Based on Modulated Differential Scanning Calorimetry Analyses

被引：0
作者：
Pedro H. M. Nicácio
Amanda M. C. Severo
Ana B. S. Barros
Ananda K. C. Albuquerque
Renate M. R. Wellen
Katharina Koschek
机构：
[1] Federal University of Campina Grande,Department of Materials Engineering
[2] Federal University of Paraíba,Department of Materials Engineering
[3] Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM,undefined
来源：
Journal of Polymers and the Environment | 2022年 / 30卷
关键词：
PLA; Babassu; Crystallizations; Kinetics; MDSC;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Poly(lactic acid) (PLA) and PLA/5% Babassu compounds were molten mixed, afterwards aged at temperatures ranging from 50 to 90 °C during 15 to 60 min. The aging effect on the phase transitions of PLA compounds was investigated using modulated differential scanning calorimetry (MDSC), through analysis of total, reversing and non-reversing heat flows. The crystallization and melting phenomena were evidenced, as well as the increase of crystalline ordering upon aging. The kinetics of cold crystallization and recrystallization during the melting event were solely elucidated using MDSC. The phase transitions were modeled using Pseudo-Avrami, which displayed good fits between the theoretical and experimental data. This work reports the influence of the composite aging on reordering and recrystallization phenomena of PLA and PLA/Babassu composite with insights of the reordering and recrystallization phenomena.
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页码：3840 / 3851
页数：11
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