China's Refractories

《中国耐火材料》英文版

China's Refractories ›› 2024, Vol. 33 ›› Issue (4): 38-41.DOI: 10.19691/j.cnki.1004-4493.2024.04.007

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Wettability of Silica Sol Modified Multi-layer Graphene

LI Yangzhe1, YU Baisong1, ZHU Yening1, TU Junbo1,*, SU Yuqing1, WEI Juncong1, WANG Yilong2   

  1. 1 Hebei Province Key Laboratory of Inorganic Nonmetallic Materials, North China University of Science and Technology, Tangshan 063009, China;
    2 Hebei Guoliang New Materials Limited Company, Tangshan 063000, China
  • Online:2024-12-15 Published:2024-12-12
  • Contact: *e-mail: tujunbo@126.com
  • About author:Li Yangzhe, born in 1999, received her bachelor's degree in inorganic nonmetallic materials engineering from North China University of Science and Technology in 2021. At present she is a graduate student in Wuhan University of Science and Technology, majoring in materials science and engineering. Her research direction before graduation is steel ladle lining refractories.

Abstract: To expand the application of multi-layer graphene in water-based systems, modified multi-layer graphene was prepared by vacuum impregnation with silica sol and carbon-embedded heat treatment at 300, 500 or 700 °C for 3 h. The phase composition, microstructure and wettability of the modified multi-layer graphene heat treated at different temperatures were studied. The results show that the water wettability of the modified multi-layer graphene is improved after vacuum impregnation with silica sol and carbon-embedded heat treatment; the optimum heat treatment temperature is 300 °C, and the modified multi-layer graphene has the water wetting angle of 64.7°.

Key words: multi-layer graphene, surface modification, silica sol, vacuum impregnation method, wetting angle