The Open Materials Science Journal

2016, 10 : 2-7
Published online 2016 April 30. DOI: 10.2174/1874088X01610010002
Publisher ID: TOMSJ-10-2

RESEARCH ARTICLE
 Study on Thermal Performance of Composites Prepared Using Poly(L-Lactic Acid) and Melamine

Yan-Hua Cai1,2, * and Li-Sha Zhao1,2
1 Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Yongchuan, Chongqing-402160, P.R. China
2 School of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing-402160, P.R. China

* Address correspondence to this author at the Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Yongchuan, Chongqing-402160, P.R. China; E-mail: caiyh651@aliyun.com

ABSTRACT

The goal of this work was to study the non isothermal and isothermal crystallization behavior of Poly(L-lactic acid) (PLLA) with melamine (TP) through differential scanning calorimeter and optical depolarizer. The study of the crystallization behavior of PLLA/TP composites indicated that TP could promote the crystallization of PLLA. The half time of overall crystallization of PLLA with 1.5 wt% TP, compared with the neat PLLA, gave rise to a decrease from 3999.44 s to the minimum value 228 s at 100 °C. In addition, the cooling rate also affected significantly the crystallization behavior of PLLA. The melting behavior of PLLA/TP composites exhibited a complicated and different melting process after cooling crystallization, and the increasing of TP content made melt mass flow rate of PLLA firstly decrease, then increases.

Keywords:

Composites, Crystallization, Fluidity, Melamine, Poly(L-lactic acid).