Article
Chemistry, Applied
Jiating Wen, Zhe Sun, Fanglong Zhu, Haojun Fan
Summary: A fluorine-free anti-smudge waterborne polyurethane coating was developed by dispersing hexamethylene diisocyanate trimer into organosilicon-grafted waterborne polyurethane. The coating exhibited low surface energy, preventing contaminants from penetrating and showing excellent anti-graffiti performance and high optical transparency.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Applied
Guang Yang, Zhimin Zhang, Chengqiang Li, Jianqing Hu
Summary: This article introduces a simple method to fabricate highly transparent omniphobic coatings using PDMS as a low-surface-tension reagent incorporated into the polyurethane matrix. The coating shows excellent repellency to liquids with surface tensions higher than 20mN/m and has self-cleaning performance. It can be easily applied to various substrates without affecting its ink repellency, especially for fabric with anti-smudge performance.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Applied
Mengyu Zhou, Zhiming Ha, Lei Lei, Yuzheng Xia, Peng Mao, Xiaonong Chen, Bifa Fan, Shuxian Shi
Summary: In this study, transparent and omniphobic bio-based polyurethane coatings with high hardness, excellent anti-smudge and anti-corrosion properties were successfully prepared. The effects of R-value and PDMS-OH dosage on coating properties were thoroughly investigated. The coatings exhibited anti-smudge properties and maintained their performance even after multiple polishing cycles. Moreover, the coatings provided better corrosion protection for tinplate compared to regular polyurethane coatings.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Polymer Science
Mingyang Li, Daidong Wei, Wenchao Zhang, Liyan Liang, Qiwen Yong
Summary: A vegetable oil-based polyol was used to obtain a biobased polyurethane anti-smudge coating with excellent anti-ink and self-cleaning performance. The coating exhibited high smoothness, transparency, and mechanical robustness, and could easily repel water, ink, and other liquids without leaving any residue.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Haihang Luo, Huan Wei, Li Wang, Qiang Gao, Yi Chen, Jun Xiang, Haojun Fan
Summary: A novel anti-smudge coating based on waterborne polyurethane, polydimethylsiloxane, and hexamethoxymethylmelamine has been developed. The coating exhibits excellent transparency, resistance to liquid corrosion, and anti-smudge capabilities, even when subjected to bending or impact.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yixing Zeng, Hongqiang Li, Jian Li, Jinxin Yang, Zhonghua Chen
Summary: Metal corrosion can cause severe economic loss. Anti-corrosion coating is effective and economic for protecting metal facilities. Polyurethane-urea coatings with different isocyanate indexes were prepared and their chemical structure, conductivity, and corrosion resistance were studied. The coatings with isocyanate index of 1.0-1.1 showed good corrosion resistance and conductivity. This research provides a new strategy for preparing solvent-free anti-corrosion coatings and promoting the development of anticorrosive materials.
SURFACES AND INTERFACES
(2023)
Article
Polymer Science
Amado Lacruz, Mireia Salvador, Miren Blanco, Karmele Vidal, Amaia M. Goitandia, Lenka Martinkova, Martin Kyselka, Antxon Martinez de Ilarduya
Summary: Waterborne polyurethane-urea dispersions (WPUD) based on fully biobased materials have been successfully synthesized, providing enhanced hydrophobicity and water column for textiles. Grafting POSS-OH to the polymeric backbone has also led to textile coatings with improved hydrophobicity, thermal, mechanical, and water column properties, making them highly demanded in protective workwear and technical textiles.
Article
Polymer Science
Zhijun Wu, Yixing Lin, Xinyi Yuan, Xiaosong Zhou, Jin Luo, Xunfu Zhou, Canqun Liu, Jinqing Qu
Summary: In this work, a novel sorbitol-based epoxy anti-smudge coatings (EPs) system were developed with SE as raw material, PDMS-NH2 as a liquid-repellent agent and isophorone diamine as a curing agent. These coatings show excellent thermal stability and exhibit remarkable self-cleaning performance with good liquid repellency to various liquids. Additionally, they have high transparency, excellent corrosion resistance, and can be dyed into different colors without affecting their anti-ink performance, making them suitable for practical applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Environmental
Renganath Rao Ramesh, Raghava Rao Jonnalagadda
Summary: In this study, superhydrophobic materials were successfully fabricated using imine chemistry and modification of the amine group. These materials exhibited excellent performance in terms of water sliding angles, resistance to acids and alkali, and stability at high temperatures. A method for directed growth of superhydrophobic particles on cellulose mesh was developed, and a spray coating technique was introduced to overcome abrasion caused by prolonged use. The prepared material is a suitable and non-toxic alternative for fabrication of self-cleaning materials and superhydrophobic finish.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Jue Wei, Xinpeng Wei, Minghuan Hou, Jian Wang
Summary: Excessive ice accumulation in low-temperature environments can cause economic losses and safety hazards. Superhydrophobic coatings can retard ice formation, but may form interlocking structures with ice, making it difficult to remove. Photothermal coatings provide an effective solution for de-icing and the combination of photothermal de-icing and superhydrophobic anti-icing can achieve a fluorine-free photothermal superhydrophobic coating (PSC).
ACS APPLIED NANO MATERIALS
(2023)
Article
Polymer Science
Xiaoquan Li, Fuping Bian, Shi Li, Xuefeng Gui, Mingfeng Yao, Jiwen Hu, Shudong Lin
Summary: This study developed multifunctional silicone acrylate prepolymers that can be rapidly cured into transparent films in air using UV curing technology, with high transparency, excellent heat resistance, and anti-smudge properties.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Applied
Canqun Liu, Jiayi Wu, Xiaosong Zhou, Xunfu Zhou, Zhijun Wu, Jinqing Qu
Summary: In this study, a novel fluorine-free anti-smudge polyurethane coating system was developed. The coating showed excellent self-cleaning performance and inhibiting ink deposition ability.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Polymer Science
Nima Alizadeh, Eldon Triggs, Ramsis Farag, Maria L. Auad
Summary: Flexible graft-interpenetrating polymer networks were synthesized using polyurethane and acrylic-based copolymers, with styrene and methyl methacrylate as co-monomers. The chemical bonds between the polymers in the network helped decrease phase separation, and changing the co-monomer composition affected the properties of the IPN system. Various tests were conducted to characterize the thermo-mechanical and mechanical properties of the IPN samples, showing excellent transparency, impact resistance, and potential for high-performance applications.
EUROPEAN POLYMER JOURNAL
(2021)
Review
Chemistry, Applied
Pavan M. Paraskar, Mayur S. Prabhudesai, Vinod M. Hatkar, Ravindra D. Kulkarni
Summary: The scientific community has been focused on the research of sustainable development in the past decade, with green bio-based polyurethane coatings replacing traditional petroleum-based coatings, due to their ease of access, biodegradability, low cost, and lesser environmental impact in the coating industry.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Xiaoquan Li, Fuping Bian, Shi Li, Xuefeng Gui, Mingfeng Yao, Jiwen Hu, Shudong Lin
Summary: UV/moisture dual curable siloxymethyl-modified silicone acrylate (SMSA) prepolymers were synthesized via sequential hydrosilylation of pentaerythritol tetraacrylate (PETTA), hydride-terminated polydimethylsiloxane (H-PDMS), and trimethoxysilane (TMOS). These prepolymers combine the advantages of UV and moisture curing, allowing for rapid curing and addressing the issues of UV curing in shadowed areas and thick coatings. The dual curing process also resolves the problems of oxygen inhibition and poor adhesion commonly associated with conventional UV-curable silicone materials. The UV/moisture dual cured coatings have potential applications in UV-curable anti-smudge and anti-fingerprint coatings.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)