Effect of aspect ratio of graphene oxide on properties of poly (vinyl alcohol) nanocomposites

被引：28
|
作者：
Morimune-Moriya, Seira [1 ]
Goto, Takuya [2 ]
Nishino, Takashi [3 ]
机构：
[1] Chubu Univ, Coll Engn, Dept Appl Chem, Kasugai, Aichi, Japan
[2] Mitsubishi Gas Chem Inc, Tokyo, Japan
[3] Kobe Univ, Grad Sch Engn, Dept Chem Sci & Engn, Nada Ku, Kobe, Hyogo 6578501, Japan
来源：
NANOCOMPOSITES | 2019年 / 5卷 / 03期
关键词：
Graphene oxide; poly (vinyl alcohol); aspect ratio; mechanical properties; thermal properties; barrier properties; reinforcement effect; VAPOR BARRIER PROPERTIES; MECHANICAL-PROPERTIES; THERMAL-CONDUCTIVITY; POLY(VINYL ALCOHOL); CLAY; COMPOSITES; BEHAVIOR; SIZE; POLYMER/CLAY; NANOSHEETS;
D O I：
10.1080/20550324.2019.1647688
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, the effect of aspect ratio of graphene oxide (GO) on the properties of poly (vinyl alcohol) (PVA) nanocomposites were investigated. The PVA/GO nanocomposites were prepared by a simple solution casting method. GO with 3 different lateral sizes, 0.5, 1.5 and 3 mu m were used. The higher the aspect ratio, the higher the Young's modulus obtained. The effect of aspect ratio on Young's modulus was in agreement with the Halpin-Tsai model, especially when GO was highly aligned in uniaxially drawn nanocomposites. Similar to the Young's modulus, the barrier properties increased with increasing GO aspect ratio. On the other hand, the highest glass transition temperature as well as the highest thermal decomposition temperature was achieved for the GO of the lowest aspect ratio. [GRAPHICS] .
引用
收藏
页码：84 / 93
页数：10
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