Comparison of the effects of commercial nucleation agents on the crystallization and melting behaviour of polylactide

被引：69

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

来源：

POLYMER TESTING | 2013年 / 32卷 / 01期

关键词：

Polylactide; Nucleation agent; Crystallization; Melt behaviour; Non-isothermal; Kinetic; NONISOTHERMAL CRYSTALLIZATION; POLY(L-LACTIC ACID); POLY(LACTIC ACID); PHASE-CHANGE; KINETICS; NANOCOMPOSITES; MORPHOLOGY; PLLA;

D O I：

10.1016/j.polymertesting.2012.08.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

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.

引用

页码：15 / 21

页数：7

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