title: Self-healing polyelectrolyte multilayered coating for anticorrosion on carbon paper.
abstract: Ideally, if the corrosion resistance coating on carbon paper (CP) can be endowed with the self-healing property, the service life and the reliability of the carbon paper will be greatly increased as the gas diffusion layer. In this paper, different cycles of s branched poly (ethyleneimine) (bPEI) and poly (acrylic acid) (PAA) were modified on the surface of the carbon paper via layer-by-layer (LbL) self-assembly technology. The prepared polyelectrolyte multilayered coatings can not only protect the carbon fiber from corrosion, but also take advantages of the surrounding water to quickly repair themselves after damaged. The effects of the assembly cycles on morphology, resistance, air permeability and the contact angle of carbon papers were investigated, then the differences of the carbon papers in electrolysis process were explored. The results reveal that all the prepared coatings can protect carbon papers from corrosion, while when the assembly cycles was 10, the coatings are most efficient.
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China; Central Laboratory of Linyi People's Hospital, Linyi 276003, PR China.
authors.forename: Yanxi
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, PR China.
authors.forename: Xinmin
authors.initials: X
authors.lastname: You
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China.
authors.forename: Jiaoyu
authors.initials: J
authors.lastname: Ren
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, PR China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China. Electronic address: lqge@seu.edu.cn.
authors.forename: Liqin
authors.initials: L
authors.lastname: Ge
keywords: Anticorrosion; Carbon paper; Layer-by-layer; Self-healing