• 文献标题:   High-performance poly(vinyl alcohol)-chitosan sponge modified with graphene oxide
  • 文献类型:   Article
  • 作  者:   WEI DL, LUO XF, XIONG LJ, HUANG HB, LI L, YU XH, WEI L
  • 作者关键词:   poly vinyl alcohol, chitosan, graphene oxide, sponge
  • 出版物名称:   POLYMER BULLETIN
  • ISSN:   0170-0839 EI 1436-2449
  • 通讯作者地址:   Wuhan Inst Technol
  • 被引频次:   4
  • DOI:   10.1007/s00289-018-2537-1
  • 出版年:   2019

▎ 摘  要

Three-dimensional porous sponge with good mechanical strength, high absorption capacity and recyclability is of scientific and technological interest. In this work, graphene oxide has been incorporated into poly(vinyl alcohol)-chitosan sponge during acetalization reaction of poly(vinyl alcohol) for the fabrication of macroporous and amphiphilic sponges. Mercury intrusion porosimetry and scanning electron microscopy indicate that the as-prepared sponges have interconnected open-cell structures. The incorporation of graphene oxide and the interconnected macroporous structures in the amphiphilic sponges endow them with improved absorption capacity for both water and organic liquids. Moreover, the absorbed liquids can be effectively collected through simple squeezing and the sponges can be used repeatedly while maintaining a relative high absorption capacity. The simple fabrication and improved performance of the resulting sponges suggest that they have potential industrial applications.