Mechanical and Water Absorption Properties of Waterborne Polyurethane/Graphene Oxide Composites

被引：4

作者：

Baskakov, Sergey A. ^{[1
]}

Baskakova, Yulia V. ^{[1
]}

Dvoretskaya, Elizaveta V. ^{[1
]}

Krasnikova, Svetlana S. ^{[1
]}

Lesnichaya, Valentina A. ^{[1
]}

Shulga, Yury M. ^{[1
,2
]}

Gutsev, Gennady L. ^{[3
]}

机构：

[1] Russian Acad Sci, Fed Res Ctr Problem Chem Phys & Med Chem, Moscow 142432, Russia

[2] Natl Univ Sci & Technol MISiS, Dept Funct Polymer Mat, Leninsky Pr 4, Moscow 119049, Russia

[3] Florida A&M Univ, Dept Phys, Tallahassee, FL 32307 USA

来源：

MATERIALS | 2023年 / 16卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

waterborne polyurethane; graphene oxide; composite; mechanical properties; water absorption; MODIFIED GRAPHENE OXIDE; FUNCTIONALIZED GRAPHENE; GRAPHITE OXIDE; ELECTRICAL-CONDUCTIVITY; NANOCOMPOSITES; COATINGS; PERFORMANCE; FABRICATION; REDUCTION; MATRIX;

D O I：

10.3390/ma16010178

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocomposites based on waterborne polyurethane (WPU) and graphene oxide (GO) have been synthesized and characterized. It was found that after the incorporation of GO, WPU films became mechanically more rigid, and the Young's modulus increased by almost six times. It is shown that the lateral size of GO sheets influences the mechanical properties of WPU/GO composites. In particular, composites with larger lateral size of GO sheets have higher values of Young's modulus. Additionally, if the mechanical properties are improved with the addition of GO additive, then water absorption decreases for WPU modified with small GO sheets whereas it increases for WPU modified with large GO sheets. Possible reasons for this behavior are discussed.

引用

页数：11

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