LDH-热膨胀微胶囊的合成及发泡EVA复合材料的综合性能

doi:10.11896/cldb.19100111

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Abstract Hydrotalcite LDH-thermal expansion microcapsules were prepared by shell loading under suspension polymerization, foamed ethylene-vinyl acetate (EVA) composite was prepared using thermal expansion microcapsules. Expansion properties of LDH-thermal expansion microcapsule and comprehensive properties of foamed EVA composites were investigated by SEM-EDS, TG. The results showed that loading of LDH increased the expansion temperature of the microcapsules, the expansion ratio of LDH-microcapsules is more than 5 times, and the stable foam temperature reaches about 36 ℃. LDH-microcapsules significantly improved the foaming quality and mechanical properties of foamed EVA composite, its cell average diameter was 52.4 μm, the tensile strength is increased by 26.3% compared with the addition of unmodified microcapsules. At the same time, LDH-microcapsules/EVA composite has excellent thermal insulation properties, and the thermal conductivity was 0.090 8 W/(m·K).

Key words： LDH thermal expansion microcapsule thermal conductivity foaming materials

Published: 23 February 2021

CLC number:

TQ316.6

Fund:This work was supported by the Guizhou Province 100-level Talent Project([2016]5673), Guizhou Provincial Research Institute Service Enterprise Action Plan Project ([2018]4010).

Corresponding Authors: gw20030501@163.com

About author:: Yuxing Chen is studying for a master's degree in the School of Materials and Construction Engineering of Guizhou Normal University, mainly engaged in the research of polymer foam materials and thermal expansion microcapsules.
Wei Gong, Ph.D, professor, he is engaged in research of the structure and properties of polymer materials.

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	CHEN Yuxing
	WANG Tianhao
	LI Xiaojie
	FU Hai
	HE Li
	GONG Wei

Cite this article:

CHEN Yuxing,WANG Tianhao,LI Xiaojie, et al. Preparation of LDH-Thermal Expansion Microcapsules and Comprehensive Properties of Foamed EVA Composites[J]. Materials Reports, 2021, 35(4): 4194-4199.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.19100111 OR http://www.mater-rep.com/EN/Y2021/V35/I4/4194

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