• 文献标题:   Mechanical and Water Absorption Properties of Waterborne Polyurethane/Graphene Oxide Composites
  • 文献类型:   Article
  • 作  者:   BASKAKOV SA, BASKAKOVA YV, DVORETSKAYA EV, KRASNIKOVA SS, LESNICHAYA VA, SHULGA YM, GUTSEV GL
  • 作者关键词:   waterborne polyurethane, graphene oxide, composite, mechanical propertie, water absorption
  • 出版物名称:   MATERIALS
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.3390/ma16010178
  • 出版年:   2023

▎ 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.