| WEN Fang,YANG Bo,PENG Xiao-po,ZHANG Shuang-hong,HUANG Guo-jia.Advance on Graphene Conductive Coatings[J],50(3):141-148, 157 |
| Advance on Graphene Conductive Coatings |
| Received:March 12, 2020 Revised:June 03, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.03.012 |
| KeyWord:graphene conductive coatings filler mechanism electrical conductivity |
| Author | Institution |
| WEN Fang |
Guangzhou Special Pressure Equipment Inspection and Research Institute, National Quality Supervision and Inspection Center of Graphene Product, Guangzhou , China |
| YANG Bo |
Guangzhou Special Pressure Equipment Inspection and Research Institute, National Quality Supervision and Inspection Center of Graphene Product, Guangzhou , China |
| PENG Xiao-po |
Guangzhou Customs District Technology Center, Guangzhou , China |
| ZHANG Shuang-hong |
Guangzhou Special Pressure Equipment Inspection and Research Institute, National Quality Supervision and Inspection Center of Graphene Product, Guangzhou , China |
| HUANG Guo-jia |
Guangzhou Special Pressure Equipment Inspection and Research Institute, National Quality Supervision and Inspection Center of Graphene Product, Guangzhou , China |
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| Abstract: |
| Graphene has many physicochemical properties such as ultra-high conductivity, mechanical property and thermal conductivity, which makes it the most widely studied two-dimensional nanomaterials. As a special and functional filler, graphene has been widely studied in the field of conductive anticorrosive coatings. In this paper, the structure characteristics of graphene were briefly summarized. The special crystal structure made it excellent physical and chemical properties. As a filler, graphene could improve the conductivity and corrosion resistance of coatings by taking advantage of its excellent conductivity and lamellar structure. Next, specific problems in the application of graphene in conductive coatings were described in detail. The dispersion of graphene was solved by adding additives and functionalizing modification of graphene oxide; an appropriate amount of additive was the key factor of conductive coating performance; graphene composites could reduce the additive amount of graphene and produce synergistic effects; and the preparation process of graphene conductive coating mainly included:solution mixing, melt blending and in-situ polymerization. Then, the conductive mechanism of graphene conductive coatings was described and analyzed by combining with the conductive model. The competition mechanism suggested that the conductivity of doped conductive coatings was the result of competition among conductive pathways, tunnel effect and field emission. Finally, the application prospect of graphene conductive coatings was prospected, and the research suggestions of graphene in the field of conductive coatings were put forward from the aspects of graphene dispersion method, mechanism research, preparation process, etc. |
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