TMC-300对PLLA/PPC合金性能的影响

doi:10.11896/j.issn.1005-023X.2018.10.020

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Abstract In order to improve the crystallization properties of poly (L-lactic acid) (PLLA)/poly (propylene carbonate) (PPC) alloy, a PLLA-specific hydrazide nucleating agent TMC-300 was added into the alloy by melt blending. Differential scanning calori-meter (DSC), wide angle X-ray diffraction (WAXD), small angle X-ray scattering (SAXS), polarized optical microscopy (POM), scanning electron microscopy (SEM) and mechanical analysis were utilized to investigate the effects of TMC-300 on the properties of PLLA/PPC alloy. The results manifested that the addition of 0.5% TMC-300 had little effect on the compatibility between PLLA/PPC alloys, but the crystallinity of PLLA/PPC alloy increased, and the long period of PLLA in the alloy decreased. The number of PLLA nuclei in the alloy increased after adding in TMC-300, which the size of the spherulite decreased. In addition, the elongation at break of the PLLA/PPC alloy was increased with added 0.5% of TMC-300. The impact toughness of the alloy improved and its ma-ximal value corresponded to PLLA/PPC alloy of 80/20 mass ratio with addition of 0.5% TMC-300.

Key words： poly(L-lactic acid) poly(propylene carbonate) TMC-300 crystallization properties mechanical properties

Published: 25 May 2018 Online: 2018-07-06

CLC number:

O631

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	Articles by authors
	QI Yaping
	LUO Faliang
	WANG Kezhi
	SHEN Zhiyuan
	WU Xuejian
	WANG Diran

Cite this article:

QI Yaping,LUO Faliang,WANG Kezhi, et al. Effect of TMC-300 on the Performance of PLLA/PPC Alloy[J]. Materials Reports, 2018, 32(10): 1672-1677.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.10.020 OR https://www.mater-rep.com/EN/Y2018/V32/I10/1672

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