Ultrasonic-assisted preparation of graphene oxide carboxylic acid polyvinyl alcohol polymer film and studies of thermal stability and surface resistivity

被引:23
|
作者
Li, Yongshen [1 ]
Li, Jihui [1 ]
Li, Yuehai [2 ]
Li, Yali [3 ]
Song, Yunan [1 ]
Niu, Shuai [1 ]
Li, Ning [4 ]
机构
[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China
[2] Minnan Normal Univ, Dept Chem & Environm, Zhangzhou 363000, Peoples R China
[3] Yongnian Cty Hosp Tradit Chinese Med, Dept Surg, Yongnian 057150, Peoples R China
[4] Real Estate CO LTD, CSCEC, Beijing 100070, Peoples R China
关键词
GO-COOH; GO-COOPVA film; Ultrasonic-assisted method; Thermal stability; Surface resistivity; DOPED GRAPHENE; DIRECT FUNCTIONALIZATION; HIGH-YIELD; REDUCTION; GRAPHITE; IONS;
D O I
10.1016/j.ultsonch.2017.08.038
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In this paper, flake graphite, nitric acid and acetic anhydride are used to prepare graphene oxide carboxylic acid (GO-COOH) via an ultrasonic-assisted method, and GO-COOH and polyvinyl alcohol polymer (PVA) are used to synthesize graphene oxide carboxylic acid polyvinyl alcohol polymer (GO-COOPVA) via the ultrasonic-assisted method, and GO-COOPVA is used to manufacture graphene oxide carboxylic acid polyvinyl alcohol polymer film (GO-COOPVA film) via a solidification method, and the structure and morphology of GO-COOH, GO-COOPVA and GO-COOPVA film are characterized, and the thermal stability and surface resistivity are measured in the case of the different amount of GO-COOH. Based on the characterization and measurement, it has been successively confirmed and attested that carboxyl groups implant on 2D lattice of GO to form GO-COOH, and GO-COOH and PVA have the esterification reaction to produce GO-COOPVA, and GO-COOPVA consists of 2D lattice of GO-COOH and the chain of PVA connected in the form of carboxylic ester, and GO-COOPVA film is composed of GO-COOPVA, and the thermal stability of GO-COOPVA film obviously improves in comparison with PVA film, and the surface resistivity of GO-COOPVA film clearly decreases.
引用
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页码:798 / 807
页数:10
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