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TY - JOUR
TI - Antifouling and anticorrosion performance of the composite coating made of tetrabromobisphenol-A epoxy and polyaniline nanowires
AU - Wu, Changhao
AU - Wang, Jixiao
AU - Song, Shuangshuang
AU - Wang, Zhi
AU - Zhao, Song
T2 - Progress in Organic Coatings
AB - Tetrabromobisphenol-A epoxy (TBEP), based on its hydrophobicity and antibacterial activity, is suitable to prepare top coating. Meanwhile, bisphenol-A epoxy (EP), based on its strong adhesion strength with metals, is a commonly material to prepare primer coating. Polyaniline (PANI) nanowires, which can facilitate the formation of passivation layer, is usually used as additive to reinforce the corrosion resistance of coatings. Herein, the composite coating composed of EP primer coating with 2 wt% PANI nanowires and TBEP top coating with 2 wt% PANI nanowires was assembled and characterized. Because the hydrophobic and antibiotic bromine atoms existed in TBEP, the composite coating exhibited low water absorption (0.32 wt%) and high antibacterial rate (over 93.17 %) compared with pure EP coating. Moreover, the composite coating had good adhesion with metals (dry: 5.65 MPa, wet: 4.07 MPa) and excellent anticorrosion properties (|Z|0.01 Hz > 1011 ohms·cm2 after 70 days immersion) in comparison to the composite coating without PANI nanowires, since the PANI nanowires provide multifunctional behaviors such as passivation, barrier, etc. This work might give a new perspective to prepare efficient antifouling and anticorrosion coating via reasonably combine the advantages of different functional materials.
DA - 2020/11/01/
PY - 2020
DO - 10.1016/j.porgcoat.2020.105888
DP - ScienceDirect
VL - 148
SP - 105888
J2 - Progress in Organic Coatings
LA - en
SN - 0300-9440
UR - http://www.sciencedirect.com/science/article/pii/S0300944020310997
Y2 - 2020/08/24/12:35:02
KW - Anticorrosion
KW - Antifouling
KW - Bisphenol-A epoxy
KW - Composite coating
KW - Polyaniline nanowires
KW - Tetrabromobisphenol-A epoxy
ER -