Article
Polymer Science
Zhenzhen Pi, Changyu Deng, Hongmei Pan, Kemei Pei
Summary: Polyethylene glycol 1000 (PEG1000) and epoxy resin E20 were used to synthesize the E20/PEG1000 polymer (EP1K), which was later transformed into a self-emulsifying water-based epoxy curing agent by reacting with m-Xylylenediamine (MXDA). The effects of various factors on the properties of the curing agent were analyzed, and the coating properties of the waterborne epoxy varnish were tested. The results showed excellent anti-corrosion performance and mechanical properties for the prepared varnish under specific conditions.
Article
Chemistry, Applied
Lisheng Zhou, Pengbo Zhang, Liming Shen, Liangyong Chu, Jian Wu, Yujie Ding, Beijie Zhong, Xiaoyan Zhang, Ningzhong Bao
Summary: In this study, maleic acid diamine modified graphene oxide was used as a filler to prepare GO/WEP composite coatings with high cross-linking degree, improved hydrophobicity, and high barrier properties. This enhances the corrosion resistance of waterborne epoxy resin.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Materials Science, Coatings & Films
Tao Zhou, Jin Zhang, Jianguo Zhao, Wenshan Qu, Xinyu Li, Shijie Li, Baoyan Xing, Yongchun Fu
Summary: The research focused on using waterborne epoxy curing agent containing GO to enhance the corrosion protection performance of epoxy resin coatings. The new strategy involved endcapping, modifying, and in-situ grafting processes to develop a curing agent with superior barrier effects and environmentally-friendly characteristics, exhibiting desirable corrosion protection capacity with a low VOC content.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Baojie Dou, Hang Xiao, Xiuzhou Lin, Yingjun Zhang, Shixiong Zhao, Song Duan, Xiulei Gao, Zhiwen Fang
Summary: The study utilized fluorinated graphene to enhance the anti-corrosion performance of waterborne epoxy resin coating, improving barrier properties and tensile strength of the coating.
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Xiaoze Ma, Lijuan Chen, Kang Lei, Bokai Liao, Zehua Dong, Xinpeng Guo
Summary: The incorporation of NZ/BNNS nanocomposites significantly improves the corrosion protection performance of WEP coating through passive and active protection mechanisms. The two-dimensional structure and impermeability of NZ/BNNS provide enhanced passive protection, while the release of corrosion inhibitors under acidic conditions contributes to active protection by adsorbing on the substrate.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Applied
Gongwen Tang, Tingting Ren, Yi Wang, Zhishan Yan, Linrong Ma, Xiangyu Hou, Xin Huang
Summary: The addition of halloysite nanotubes and modified halloysite nanotubes had little effect on the thermal stability of the SEP coating, but it reduced the corrosion resistance. The self-curing epoxy coating itself showed excellent corrosion resistance and is promising for use in heavy-duty anti-corrosion applications such as heat exchangers.
PIGMENT & RESIN TECHNOLOGY
(2022)
Article
Chemistry, Applied
Yuqin Tian, Weishan Wang, Li Zhong, Xiang Jiang, Xinya Zhang
Summary: The study demonstrates that incorporating modified GO with TPOAC into WEP coatings can significantly enhance the corrosion resistance of coatings on aluminum alloy substrates, reduce internal defects, and show better corrosion impedance under experimental conditions.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Applied
Majid Soleimani, Ehsan Bagheri, Peiman Mosaddegh, Tina Rabiee, Afsaneh Fakhar, Morteza Sadeghi
Summary: The study focused on preparing stable waterborne epoxy emulsions and investigating the impact of silica nanoparticles on their properties. The addition of non-ionic emulsifier and acrylate terpolymer latex improved the stability of the emulsions, while the proper amount of silica nanoparticles enhanced properties such as adhesion strength, wear resistance, corrosion resistance, and contact angle.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Polymer Science
Ding Nan, Xin Li, Dongsheng Li, Qiong Liu, Biao Wang, Xin Gao, Ting Ma, Na He, Yu Xu, Junhui Dong
Summary: A waterborne epoxy coating with superior corrosion resistance was developed using a novel amino-functionalized graphene oxide (GO) that was modified by 2,5-diaminobenzenesulfonic acid. The modified GO showed a rougher surface but maintained a complete sheet structure. The coating containing 0.2 wt.% DGO exhibited higher impedance and lower corrosion current density, as well as increased adhesion and reduced adhesion loss, making it a promising anticorrosion coating for long-term metal protection.
Article
Materials Science, Multidisciplinary
Li Cheng, Chengbao Liu, Hao Wu, Haichao Zhao, Liping Wang
Summary: By utilizing versatile emulsion-induced approach, sandwich-like 2D nanocontainers based on mesoporous polydopamine (PDA) heterostructures on ultrathin bio-ceramic hydroxyapatite (HA) nanosheets were synthesized for potential application in improving coating service life in marine environment.
Article
Chemistry, Applied
Tong Liu, Jiayu Wei, Lingwei Ma, Shuan Liu, Dawei Zhang, Haichao Zhao
Summary: The study demonstrated that epoxy coatings containing PANP exhibit excellent corrosion resistance and self-healing ability, effectively enhancing the anticorrosive properties of Q235 mild steel. The coatings showed strong barrier effect and O-2 shielding ability, as well as maintaining high impedance modulus in a NaCl solution for 40 days.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Shi-Dong Zhu, Yan-Peng Li, Hong-Wei Wang, Jin-Ling Li, An-Qing Fu, Gang Chen, Dong Ma, Xuan-Peng Li, Frank Cheng
Summary: The working environment for tubing in oil and gas fields is becoming more serious due to the exploration of unconventional oil and gas resources, leading to the increasing need for a protective internal coating to be used in tubing. A new mica-graphene/epoxy composite coating with different graphene contents (0.0, 0.2, 0.5, 0.7, and 1.0 wt.%) was prepared to improve the tubing resistance to a corrosive medium. The results showed that the addition of a certain amount of graphene into the mica/epoxy coating significantly improved the corrosion resistance of the composite coating, with the coating containing 0.7 wt.% graphene exhibiting the best performance.
Article
Materials Science, Ceramics
Jian Zhang, Wen-Guang Lu, Hui Yan, Zheng-Bai Zhao, Lixin Xu, Jian-Hui Ye, Weili Li
Summary: Modified fillers have been designed and fabricated to improve the wear resistance and anti-corrosion properties of waterborne epoxy coatings. Glass flakes have been modified with kh560 to enhance their surface activity. By grafting phytic acid and zinc ions onto the surface of modified glass fillers, PA-Zn2+-m-GF hybrids have been obtained and used as fillers to significantly enhance the mechanical properties and corrosion resistance of the WEP coating.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Yu Zhou, Guobo Chen, Shenggang Yan, Chunhua Ni, Liangmin Yu, Xia Li
Summary: This article successfully prepared acrylate copolymers through simple radical polymerization and used them as functional fillers for epoxy composite coatings. The copolymers improved the performance and anticorrosion ability of the coatings and endowed them with strong self-healing characteristics.
PROGRESS IN ORGANIC COATINGS
(2022)
Review
Materials Science, Multidisciplinary
Chencheng Li, Zhengbin Xia, Huan Yan, Qingze Shi, Jun Weng
Summary: This study developed a novel bio-based waterborne epoxy coating with superior water repellency and anti-corrosion performance by embedding functionalized polydimethylsiloxane. The coating containing 5% functionalized polydimethylsiloxane showed optimum anticorrosive performance, attributed to the water-repellent property of the enriched polydimethylsiloxane and the passivation protection of benzotriazole.
