ACS Applied Engineering Materials
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2025
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IF 3.5
Ximing Zhong,Yue Hong,Wenchao Min,Chao Chen,Guowei Liang,Xizhi Zhang,Hua Xu,Hongjun Zhou,Xinhua Zhou
In this work, a biobased cationically photocurable omniphobic coating system was effectively developed via a facile strategy by using epoxidized soybean oil as a biomass coating precursor, tetrakis [(epoxycyclohexyl) ethyl] tetramethylcyclotetrasiloxane as an effective cross-linking agent, and polydimethylsiloxane as an omniphobic agent to provide coatings with low surface energy. Due to the rational design of this coating system, no extrinsic organic solvent was added, and 20 s ultraviolet radiation was sufficient for coating curing. The as-prepared omniphobic coatings were highly optically transparent and mechanically robust, and they also possessed exceptional liquid repellency and chemical shielding durability against various contaminants and corrosive agents. Besides, these coatings exhibited remarkable self-cleaning performance and also could be appropriately used for anti-ink, antigraffiti, and antifingerprint purposes. In addition, they could be applied for fabricating functional noctilucent coatings and bestowed them with an omniphobic property. More strikingly, this coating system could be cured via sunlight exposure without compromising the omniphobic property, enabling these coatings to be availably applicable for various substrates, including the thermosensitive ones. Therefore, the features of facile preparation, short curing duration, and optional curing strategy, in addition to above versatile functions, make these biobased omniphobic coatings tremendously promising for practical applications.
研究领域:
材料科学
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表面工程
·
高分子化学
·
应用化学
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DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Guoqiang Wu,Yubo Liu,Pengwei Xie,Yizhe Liu,Zhengfeng Ma,Chunhong Zhang,Xiaowei Pei,Yang Wu,Feng Zhou
The protection of equipment in harsh environments necessitates more stringent performance requirements for protective coatings. This study presents an all-in-one construction strategy that integrates three components, including brush-like organosilicon modified polyacrylic resin (Si-PA, functional module 1), isocyanate-end organosilicon polyurethane (Si-PU, functional module 2), and hexamethylene diisocyanate trimer (HDIT, crosslinking module 3) to develop a high-strength transparent coating, exhibiting omniphobicity, self-cleaning, low-temperature toughness, and self-lubrication. Within the coating system, the Si-PA component imparts omniphobic, self-cleaning, and self-lubricating properties via its pendant polysiloxane side chains. The Si-PU component significantly enhances the coating's toughness in cold ambience, increasing it from 429 kJ/m 3 to 1282 kJ/m 3 at −50 °C. The crosslinker HDIT provides a high degree of crosslinking and contributes to the coating's high strength, while also enhancing its self-lubricating and anti-stain performances. In addition, the coating exhibits remarkable durability under harsh conditions, including exposure to organic solvent corrosion, ultraviolet radiation, immersion in hot water and salt solutions, and 20,000 friction cycles, while maintaining its hydrophobicity. Notably, these room-temperature curing coatings can be applied to various substrate surfaces to form a transparent hydrophobic protective layer. Overall, this work presents an important approach for the design and fabrication of multifunctional protective coatings through the regulation of three distinct components.
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DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2020
·
IF 3.784
Meiling Zhang,Jing Yu,Jun Wang
Slippery liquid-infused porous surfaces (SLIPSs) are gaining remarkable amount of interest because of their exceptional liquid and solid repellency properties, their tolerance to high pressures and transparency. The lubricant layer may be depleted, leading to the loss of the “slippery” characteristics of the SLIPSs. Herein, we aimed to increase the lubricant storage capacity to enhance the long-term stability of SLIPSs through the construction of a hierarchical structure on the alloy substrates; the SLIPS herein thus represents a new kind of anti-corrosion material. By comparing the wetting speed of the lubricant and shear resistance properties, we showed that SLIPS with a ZnO/Co 3 O 4 /SiO 2 hierarchical structure provided the best lubricant wettability among the samples investigated herein; the lubricant was contained in the interior of this sample, thus providing the highest shear-tolerance observed. We also investigated the anti-corrosion property of SLIPSs that comprised ZnO/Co 3 O 4 /SiO 2 . The hierarchical structure had enough space to store the lubricant, which provided excellent corrosion protection for the alloy substrate.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2019
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IF 7.015
Wei Zhang,Yubing Lu,Jun Liu,Xipeng Li,Baoan Li,Shichang Wang
Superhydrophobic and oleophobic membrane applied in membrane distillation was fabricated by constructing a re-entrant composite structure via immobilizing silica nanoparticles (NPs) on the polyvinylidene fluoride (PVDF) membrane. The silica coated membrane with the assistance of polydopamine (PDA) was then fluorosilanized by means of a silane coupling agent 1H,1H,2H,2H-perfluorooctyltrichlorosilane. A series of characterizations were implemented to investigate the effects of modification process on the structure and performance of the PVDF composite membranes . The fouling and wetting behaviors of original and modified membranes were explored by direct contact membrane distillation (DCMD) tests using a mixed solution of inorganic salts, organic matter and surfactant as the feed. The results indicated that silica NPs and fluorinated silane were presented on the PVDF membrane substrate. After surface modification, the liquid entry pressure (LEP) increased by 120%, in addition, the water contact angle (WCA) increased from 127.0° to 169.0°, and the oil contact angle (OCA) increased from 2.8° to 112.1°. The modification process showed no effect on the pore size and pore structure . Furthermore, the composite membrane exhibited excellent chemical stability and prominent mechanical stability. The re-entrant structure resulting from nanoparticles and microspheres and the omniphobic feature were conferred on the composite membrane. The DCMD tests showed that the composite membrane kept a stable permeate flux in the long-term concentration experiment, with the salt rejection rate approximately 100%. What's more, the composite membrane did not suffer from fouling and wetting, and still dry and clean after the test. In comparison, the pristine membrane was seriously polluted during the test, and the permeate flux decreased to 28.3% of the initial value. Overall, the novel modified PVDF composite membrane reported in this work presents outstanding anti-fouling performances.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 33
·23621-23628
·
IF 3.9
Yingfen Huang
Developing a slippery lubricant-infused porous surface (SLIPS) is an important strategy for fabricating dynamically omniphobic surfaces. In this study, biocompatible and non-toxic liquid silicone rubber, TiO2 nanoparticles, and dimethyl silicone oil were used to fabricate a SLIPS. Subsequently, systematic investigation was conducted to explore its associated properties and address existing challenges in this field. The chosen lubricant exhibited a strong chemical affinity towards the substrate, eliminating the need for any functionalization treatment prior to infusion. In addition, the fabricated SLIPS exhibited excellent dynamic omniphobicity as well as shear stability, thermal stability, chemical stability, and mechanical stability. Moreover, it demonstrated good self-cleaning performance for droplets, with varying surface energies, temperatures, and pH values, as well as for common dyes and contaminants. In addition, damage from external forces could self-repair on the SLIPS, which is beneficial for extending the service life and application range.
研究领域:
材料科学
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表面工程
·
纳米技术
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DOI
高影响因子
Coatings
·
2025
·Vol. 15
·期 8
·965
·
IF 2.8
Wei Zhang,Xuran Zhu,Baoan Li,Boyang Hu,Leyu Shen,Yanzong Meng,Haifeng Gao
Commercial hydrophobic membranes encounter severe problems such as membrane wetting and membrane fouling under extreme conditions, which affect membrane separation performance. To enhance the anti-fouling abilities of hydrophobic membranes, a composite membrane with omniphobic characteristics was fabricated successfully in this paper. Titanium dioxide (TiO2) nanoparticles were in-situ grown via the hydrothermal synthesis method, and then fluorosilane with low surface energy was grafted on polyvinylidene fluoride (PVDF) membranes. Subsequently, the morphologies, chemical compositions, wetting properties and structural parameters of composite membranes were characterized systematically. Various contaminants were added to the feed to investigate the anti-fouling and anti-wetting performances of the composite membrane in membrane distillation tests. The results showed that butyl titanate was first hydrolyzed to form titanium hydroxide (Ti(OH)4) and then it was dehydrated to form TiO2in the hydrothermal environment. TiO2crystals continued to grow and formed rough morphology with micro-nano synergistic distribution, which is similar to a “sunflower” disk composed of cubic clusters and nanopillars. Meanwhile, fluorosilane successfully was grafted onto TiO2. The contact angles of deionized water, 0.4 mM sodium dodecyl sulfate (SDS) solution and 0.2%v/vmineral oil emulsion on the composite membrane surface were 167.3°, 162.0° and 158.5°, respectively, endowing the composite membrane with excellent omniphobic features. In direct contact membrane distillation (DCMD) tests, the composite membrane exhibited a relatively stable membrane permeate flux, and the salt rejection rate almost reached 100%. The mixture, consisting of inorganic salts, organic substances, surfactants and oil emulsions, was used as feed. In contrast, the commercial PVDF membrane flux decreased drastically and even dropped to 0 due to the membrane fouling and wetting. As for the pristine PVDF membrane, the membrane surface was covered with pollutants and membrane pores were blocked. Therefore, it was proved that the omniphobic composite membrane possesses outstanding anti-fouling and anti-wetting performance.
研究领域:
膜科学
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材料工程
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表面化学
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环境工程
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产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Kang Fu,Yi Tian,Zongting Zhu,Shixin Fa,Qiuyu Zhang
Transparent omniphobic coatings have attracted extensive research over the past decade to meet growing application demands. Polydimethylsiloxane (PDMS)-based anti-fouling coatings have been widely reported to contribute a liquid-like surface for liquid repellency. The bulky PDMS chains usually make the surface greasy and energy-consuming. Fluorinated epoxy is expected to overcome the above drawbacks and contribute to excellent mechanical robustness. However, the reported fluorinated epoxy coatings are unsatisfactory due to severe phase separation, excessive fluorine content, poor self-healing and weatherability. In this work, a thiolactone-terminated fluorinated prepolymer (TTFP) was prepared through thiol-click chemistry. The thiolactone structure limited the phase separation and reacted efficiently with epoxy resin in a thiol-click manner after ring-opening. The flexible TTFP molecules had a strong surface migration ability, allowing the product coating to be liquid repellent with a low fluorine content and self-healed after damage. Therefore, a low-cost, eco-friendly, anti-ultraviolet, self-healed, highly transparent, mechanically robust and chemically resistant fluorinated epoxy coating was proposed. In addition to the excellent repellency to ink traces, fingerprints and thick paint, the coating with 5H pencil hardness could maintain omniphobic properties after 100 h of intensive UV irradiation or 12 h of alkali corrosion. Benefiting from the strong surface migration ability of flexible fluoroalkyl chains, the coating could recover its omniphobicity within 30 min of heating. The characterization results show the excellent comprehensive properties of the coating and its great potential for application in various scenarios.
研究领域:
材料科学
·
表面化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）