• 文献标题:   Surface-Coated Thermally Expandable Microspheres with a Composite of Polydisperse Graphene Oxide Sheets
  • 文献类型:   Article
  • 作  者:   JIAO SZ, SUN ZC, ZHOU Y, LI FR, WEN JY, CHEN YJ, DU XY, LI LH, LIU YY
  • 作者关键词:   conductive polymer, graphene oxide, polydisperse chemical conversion, screenprinting, thermally expandable microsphere
  • 出版物名称:   CHEMISTRYAN ASIAN JOURNAL
  • ISSN:   1861-4728 EI 1861-471X
  • 通讯作者地址:   Beijing Inst Graph Commun
  • 被引频次:   3
  • DOI:   10.1002/asia.201901233 EA NOV 2019
  • 出版年:   2019

▎ 摘  要

Surface-modified thermally expandable microcapsules (TEMs) hold potential for applications in various fields. In this work, we discussed the possible surface coating mechanism and reported the properties of TEMs coated with polyaniline (PANI) and polydisperse graphene oxide sheets (ionic liquid-graphene oxide hybrid nanomaterial (ILs-GO)). The surface coating of PANI/ ILs-GO increased the corresponding particle size and its distribution range. The morphologies analyzed by scanning electron microscopy indicated that no interfacial gap was observed between the microspheres ink and substrate layer during the substrate application. The thermal properties were determined by thermogravimetric and differential thermal analyses. The addition of ILs-GO to the polyaniline coating significantly improved the thermal expansion and thermal conductivity of the microcapsules. The evaporation of hexane present in the core of TEMs was not prevented by the coating of PANI/ ILs-GO. The printing application of TEMs showed excellent adaptability to various flexible substrates with great 3D appearance. By incorporating a flame retardant agent into TEMs coated by PANI/ILs-GO, finally, these TEMs also demonstrated a great flame retardant ability. We expect that these TEM-coated PANI/ ILs-GO are likely to have the potential to improve the functional properties for various applications.