Article
Chemistry, Physical
Fengyuan Zhang, Shuo Wang, Weiqu Liu, Hongyi Shi, Liyan Liang, Chunhua Liu, Ke Pi, Wenchao Zhang, Juanjuan Zeng
Summary: This paper explores the fabrication of novel waterborne polyurethane (WPU) composite coatings with superior corrosion protection performance by intercalating functionalized graphene oxide (GO). The results highlight that hydrophobic nanoparticles remarkably enhance the corrosion protection performance of the coatings.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Jianhua Zhou, Chen Liu, Kai Lu, Fangxin Dong
Summary: In this study, a phytic acid-polydopamine functionalized GO@PA@PDA was synthesized and incorporated into waterborne polyurethane (WPU) with DOPO derivatives and hydroxyl-terminated polydimethylsiloxane (PDMS) through in situ polymerization. The incorporation of GO@PA@PDA significantly enhanced the flame retardancy and mechanical properties of the modified WPU. Additionally, the addition of GO@PA@PDA increased the surface roughness and hydrophobicity of the GPD-WPU composite films. Coating GPD-WPU as a finishing agent on polyester fabric improved its flame retardancy.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Chemistry, Applied
Zhiqiang Li, Zhaoyang Zhang, Shouxiang Liu, Yang Qiao, Yanyan Wei
Summary: Silane coupling agent KH560-FA containing furan groups was synthesized to modify the surface of graphene oxide, and maleimide group-capped waterborne polyurethane was synthesized simultaneously. A self-healing material based on polymer/modified graphene oxide with a microcrosslinking network structure was synthesized via Diels-Alder (DA) reaction. The addition of modified graphene oxide significantly enhanced the hydrophobicity and mechanical properties of the material. Moreover, when the dosage of KH560-FA-GO reached 0.4 wt%, the corrosion resistance of the coating prepared from the emulsion was remarkably improved, indicating the potential application of the material in the field of coatings.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2023)
Article
Polymer Science
Zejun Pu, Jiahong Pang, Xiaohang He, Rongli Zhu, Jiachun Zhong, Xiaobo Liu, Diyong Jiang, ZhongPei Ning
Summary: In this study, waterborne polyurethane modified by epoxy resin (WEPU) and graphene oxide (GO) derivatives were synthesized by copolymerization, and their synergistic effect on the anti-corrosion properties of waterborne polyurethane (WPU) coating was investigated. The results showed that the introduction of well-dispersed GO nanosheets into WEPU system enhanced the corrosion protection performance and significantly improved the water barrier property of the coating.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Applied
Changjiang Yu, Martina Salzano de Luna, Angela Marotta, Corinna Ponti, Ilaria Esposito, Fabio Scherillo, Zhanhua Wang, Xi Zhang, Hesheng Xia, Marino Lavorgna
Summary: The study successfully developed a self-healing waterborne polyurethane coating with Diels-Alder bonds for self-repair, utilizing NIR light as trigger. The nanocomposite PU coatings demonstrated fast and effective self-healing under NIR light irradiation, along with enhanced corrosion protection for the underlying substrate.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Nanoscience & Nanotechnology
Qingsong Zhu, Yuxiang Huang, Yilong Li, Manting Zhou, Sankui Xu, Xianhu Liu, Chuntai Liu, Bingnan Yuan, Zhanhu Guo
Summary: The synthesis of ADTP-GO-PPy hybrids and their application in waterborne epoxy coatings can significantly enhance the dispersion ability, leading to improved corrosion resistance of mild steel.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Engineering, Environmental
Qi Yuan Ng, Jiun Hor Low, Ming Meng Pang, Christopher Igwe Idumah
Summary: A comparative study was conducted to investigate the use of unfunctionalized lignin and functionalized lignin as reinforcing fillers for waterborne polyurethane film. The results showed that the functionalized lignin significantly improved the tensile properties and thermal stability of the film compared to the unfunctionalized lignin. The addition of functionalized lignin increased the ultimate tensile strength by 9% and made the film more flexible with higher deformation resistance. The thermal stability of the bio-composite films was not compromised by the addition of functionalized lignin.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Nanoscience & Nanotechnology
Ziyang Zhou, Abdolvahab Seif, Sepideh Pourhashem, Pier Luigi Silvestrelli, Alberto Ambrosetti, Majid Mirzaee, Jizhou Duan, Alimorad Rashidi, Baorong Hou
Summary: In this study, layer-by-layer MXene/graphene oxide nanosheets wrapped with 3-aminopropyltriethoxy silane are proposed as an anti-corrosion promoter for waterborne epoxies. The nanohybrid exhibits superior corrosion protection efficiency compared to other modified organic coatings, and enhances the barrier performance, surface roughness, and adhesion strength of the epoxy coating.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Chan Xie, Yu Jia, Mingshan Xue, Zuozhu Yin, Yidan Luo, Zhen Hong, Weiqing Liu
Summary: A new strategy of grafting chitosan onto graphene oxide and electrostatic self-assembling with hydrotalcite was proposed. The corrosion resistance of the coating was improved by the synergistic effect of graphene oxide and hydrotalcite stacking, as well as the self-healing characteristics of chitosan and phosphate ions.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Materials Science, Paper & Wood
Shanshan Li, Xinghuan Lin, Shuling Gong
Summary: This study presents a common strategy involving dipping-drying based layer-by-layer self-assembly coating to functionalize fabric surfaces. Novel cation and anion waterborne polyurethanes were successfully designed and synthesized, resulting in antibacterial and hydrophobic properties on the fabric surfaces. The coated fabrics showed excellent antibacterial properties and improved hydrophobicity, making them suitable for industrial production and application on various fibers.
Review
Chemistry, Multidisciplinary
Martina Salzano de Luna
Summary: Polyurethane coatings have been widely used for protective coatings due to their versatile chemistry. Concerns over the negative impact of traditional petroleum-based and solvent-borne PUs on the environment and human health have led to the research on more eco-friendly alternatives. This review article provides an overview of the development and protective performance of green polyurethane coatings.
ADVANCED MATERIALS INTERFACES
(2022)
Review
Engineering, Manufacturing
Jincan Cui, Yanyang Bao, Yahui Sun, Heng Wang, Jing Li
Summary: This review discusses the effects of functionalized graphene oxide (fGO) on the corrosion protection properties of waterborne coatings, focusing on coating integrity, interfacial adhesion, network formation, water resistance, and corrosion inhibition.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Min-Gu Kim, Kyoung-Il Jo, Eunji Kim, Jae-Hyung Park, Jae-Wang Ko, Jin Hong Lee
Summary: The study focused on the thermal and mechanical properties, water resistance, and dimensional stability of PDMS-modified waterborne polyurethanes.
Article
Engineering, Multidisciplinary
Xiaojuan Lai, Xiaohu Liu, Lei Wang, Bin Yuan, Guiru Liu, Hui Cao
Summary: In this study, a functionalized graphene-modified waterborne polyurethane-acrylate composite emulsion was successfully synthesized, which exhibited improved temperature resistance and film properties, making it suitable for pharmaceutical packaging.
JOURNAL OF APPLIED SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Sergey A. Baskakov, Yulia V. Baskakova, Elizaveta V. Dvoretskaya, Svetlana S. Krasnikova, Valentina A. Lesnichaya, Yury M. Shulga, Gennady L. Gutsev
Summary: Nanocomposites based on waterborne polyurethane (WPU) and graphene oxide (GO) were synthesized and characterized. The incorporation of GO led to a significant increase in the Young's modulus of WPU films. The mechanical properties of WPU/GO composites were found to be influenced by the lateral size of GO sheets. Additionally, the water absorption of WPU was affected differently depending on the size of GO sheets.
