溶液共混法制备碱式硫酸镁晶须/聚丙烯复合材料及其力学性能

doi:10.11896/cldb.18070183

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Abstract Aseries of polypropylene/magnesium oxysulfate whisker (PP/MOSw) composites were prepared via solution blending method, using xylene as solvent, PP resin as matrix and lauric acid modified MOSw as filler. Mechanical property tests showed that the tensile strength, yield strength and impact strength were all greatly increased when the amount of MOSw was less than 5wt%. With the further increase of MOSw content, the tensile strength and yield strength of PP/MOSw composites turned to decline, but still greater than those of composites prepared via melt blending method. The SEM analyses of fracture surface implied that less than 5wt% amount of MOSw was well-dispersed. However, great amount of MOSw easily led to aggregating and had poor compatibility with PP matrix. Besides, Turcsányi equation was used to quantitative calculate the interfacial interaction between MOSw and PP matrix. The results also confirmed that less than 5wt% amount of MOSw led to stronger interfacial interaction. With the increase of MOSw content, the interfacial interaction instead became weaker.

Key words： solution blending method magnesium oxysulfate whisker polypropylene interfacial interaction

Published: 31 July 2019

CLC number:

TB332

Fund:This work was financially supported by the National Natural Science Foundation of China (21868030) and the Doctoral Scientific Research Foundation of Qinghai University (4106040151).

About author:: Li Dangreceived his Ph.D. degree in inorganic che-mistry from the Qinghai Institute of Salt Lakes, University of Chinese Academy of Sciences (UCAS) in Jan. 2017. He was appointed to the faculty upon graduation, and is currently a lecturer of the School of Chemical Engineering, Qinghai University. He has published more than 10 journal papers as the first author, authorized 1 national invention patent. His research interests focus on the polymers/inorganic materials composites, and has carried out the fundamental theory research about the modification of new inorganic materials of salt lakes & their applications in polymer matrices.

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	DANG Li
	LI Wanqin
	LYU Zhihui
	HU Jielin
	CIWANG Lamu
	LIU Wei

Cite this article:

DANG Li,LI Wanqin,LYU Zhihui, et al. Preparation and Mechanical Properties of Polypropylene/Magnesium Oxysulfate Whisker Composites by Solution Blending Method[J]. Materials Reports, 2019, 33(18): 3135-3139.

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http://www.mater-rep.com/EN/10.11896/cldb.18070183 OR http://www.mater-rep.com/EN/Y2019/V33/I18/3135

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