Non-covalently functionalized graphene strengthened poly(vinyl alcohol)

被引：244

作者：

Wang, Xiaodong ^{[1
]}

Liu, Xianhu ^{[1
]}

Yuan, Hongyue ^{[1
]}

Liu, Hu ^{[1
]}

Liu, Chuntai ^{[1
]}

Li, Tingxi ^{[2
]}

Yan, Chao ^{[3
]}

Yan, Xingru ^{[4
]}

Shen, Changyu ^{[1
]}

Guo, Zhanhu ^{[4
]}

机构：

[1] Zhengzhou Univ, Natl Engn Res Ctr Adv Polymer Proc Technol, Zhengzhou 450002, Henan, Peoples R China

[2] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China

[3] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang, Jiangsu, Peoples R China

[4] Univ Tennessee, Integrated Composites Lab, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA

来源：

MATERIALS & DESIGN | 2018年 / 139卷

关键词：

Graphene; Mechanical properties; Nanocomposites; Noncovalent functionalization; EXFOLIATED GRAPHITE OXIDE; AQUEOUS DISPERSIONS; CHEMICAL-REDUCTION; HIGH-PERFORMANCE; POLYMER; COMPOSITES; NANOCOMPOSITES; FILMS; MORPHOLOGY; INTERFACE;

D O I：

10.1016/j.matdes.2017.11.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, non-covalently functionalized reduced graphene oxide (rGO) reinforced poly(vinyl alcohol) (PVA) nanocomposites were prepared by solution mixing. The agglomeration of graphene sheets was prevented by using surface modifying agent poly(sodium 4-styrenesulfonate) (PSS). The improved mechanical properties, including the Young's modulus and tensile strength of the PVA/rGO nanocomposites compared to neat PVA were attributed to the strong interactions between PVA and rGO such as pi-pi, hydrogen bonding, and CH-pi. A 55% maximum increase in the modulus was obtained by adding only 0.1 wt% rGO, and an increase of 48% in tensile strength was achieved by adding 0.3 wt% rGO. In addition, the thermal properties of the nanocomposites were also improved, which was attributed to the restriction of graphene oxide (GO)/rGO sheets on the chain mobility of polymers on the GO/rGO sheets surface. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：372 / 379

页数：8

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