The incorporation of graphene to enhance mechanical properties of polypropylene self-reinforced polymer composites

被引：11

作者：

Wang J. ^{[1
,2
]}

Song F. ^{[3
]}

Ding Y. ^{[3
]}

Shao M. ^{[3
]}

机构：

[1] College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing

[2] State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing

[3] School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing

来源：

Materials and Design | 2020年 / 195卷

基金：

中国国家自然科学基金;

关键词：

Film stacking; Graphene; Mechanical properties; Melt spinning; Self-reinforced polymer composites;

D O I：

10.1016/j.matdes.2020.109073

中图分类号：

学科分类号：

摘要：

Lightweight, easy recyclability and improved bonding can be achieved by self-reinforced polymer composites (SPC). However, the mechanical properties of SPC are usually limited. This paper describes the incorporation of graphene platelets (GNP) into polypropylene (PP) to produce PP/GNP SPC. PP/GNP fibers were firstly prepared by melt compounding and spinning, and then PP/GNP SPC were produced by film stacking. The thermal, mechanical, and morphological properties of the produced samples were characterized via DSC, WAXD, tensile test, peeling test, optical microscopy, and SEM. The combination of film stacking technology of SPC and nanotechnology of graphene enhanced the mechanical properties significantly. The tensile strength, tensile modulus, and interfacial strength of PP SPC with only 0.062 wt% GNP were increased by 117, 116, and 116%, respectively. The reinforcement is attributed to the high intrinsic mechanical properties of GNP and the self-reinforced mechanism. The spinning promotes the alignment of GNP, and the compaction process induces the in-plane orientation of GNP. In addition, a small number of GNP do not increase the cost significantly. © 2020 The Authors

引用

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