无机成核剂改善聚乳酸结晶性能的研究进展

doi:10.11896/j.issn.1005-023X.2018.07.017

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Abstract As a semi-crystalline polymer, polylactic acid (PLA) has a excruciatingly low crystallization rate, which makes PLA crystallize negligibly during the forming process, and consequently to a large extent attenuates the product’s heat resistance and other properties. Hence the shortcoming mentioned above can be overcome by improving PLA’s crystallization, to which the addition of inorganic fillers is an effective approach. This paper aims to summarize the preparation of variety of composite materials with excellent crystallization performances by blending PLA with different types of inorganic nucleating agent fillers. The inorganic nucleating agent dispersed in the PLA matrix act as a nucleation site to increase the nucleation density. The molecular interaction force, the high orientation of the molecular chain, and the satisfied crystallinity lead to the increment of melting enthalpy and the decline of melting entropy, and thereby benefiting the PLA’S heat resistance.

Key words： polylactic acid (PLA) inorganic nucleating agent crystallizability blending modification

Published: 11 May 2018

CLC number:

TQ327.9

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	Articles by authors
	ZHAO Xipo
	LIU Chang
	XU Min
	PENG Shaoxian

Cite this article:

ZHAO Xipo,LIU Chang,XU Min, et al. Improving the Crystallization of Poly(lactic acid)(PLA) by Adding Inorganic Nucleating Agents: a Review of the Variety[J]. Materials Reports, 2018, 32(7): 1158-1164.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.07.017 OR http://www.mater-rep.com/EN/Y2018/V32/I7/1158

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