文献类型：期刊文献

英文题名：Comparison of the effects of commercial nucleation agents on the crystallization and melting behaviour of polylactide

作者：Gui, Zongyan[1];Lu, Chong[1];Cheng, Shujun[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：32

期号：1

起止页码：15

外文期刊名：POLYMER TESTING

收录：;EI(收录号：20125015778334);WOS:【SCI-EXPANDED(收录号:WOS:000314448100004)】；

语种：英文

外文关键词：Polylactide; Nucleation agent; Crystallization; Melt behaviour; Non-isothermal; Kinetic

摘要：The effects of eight commercial nucleation agents on the crystallization of polylactide (PLA) were comparatively investigated by differential scanning calorimetry. Among them, TMC-328 (TMC) and PET-C (PETC) show significant nucleation effects on PLA. Under the same nucleation agent content, the crystallization temperatures of PLA/TMC samples are about 15 degrees C higher than those of PLA/PETC samples at the same cooling rate. However, PETC accelerates the crystal growth of PLA more effectively than TMC. Due to the high crystallization temperatures, the crystals nucleated by TMC are more perfect than those nucleated by PETC. The PLA/PETC samples show double melting peaks. The PLA/TMC samples are more transparent than the PLA/PETC samples. However, TMC promotes the degradation of PLA more seriously than does PETC. (c) 2012 Elsevier Ltd. All rights reserved.