REACTIVE & FUNCTIONAL POLYMERS
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2025
·
IF 5.1
Hailong Wang,Jialong Zhu,Haolan Gou,Wenyu Fang,Hong Fan
The demand for high-transparent functional coatings with excellent hardness and excellent anti-smudge properties has increased significantly, especially for display devices such as smartphones and tablets. In this work, epoxy MQ silicone resins with different epoxy values were synthesized by sol-gel method and hydrosilylation reaction, and then cured with methyl hexahydrophthalic anhydride to obtain an organic-inorganic hybrid coating with extraordinary transparency (99.3 % at 550 nm) and high hardness (0.21 GPa). By introducing fluorocarbon chains into MQ silicone resin, the surface energy of the coating is reduced from 31.9 ± 0.5 mJ/m 2 to 23.1 ± 0.3 mJ/m 2 and the water contact angle is increased from 84.0° to 107.9°, showing excellent self-cleaning properties while maintaining good mechanical properties (hardness, 0.19 GPa) and excellent transparency (98 % at 550 nm). Moreover, the coating could maintain its outstanding performance after 100 cycles of steel wool abrasion or heating at 60 °C for 60 h. Therefore, this work provides insights into the fabrication of multifunctional coatings integrated with high transparency, wear resistance, as well as anti-smudge properties for touch screens.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2025
·Vol. 17
·期 3
·302
·
IF 4.9
Hua Xu,Chao Chen,Shunfeng Hu,Yiqi Chen,Dengle Duan,Guowei Liang,Ximing Zhong
Highly transparent anti-smudge coatings are attractive for diverse fields due to their inherent repellency against various contaminants and the ability to keep surfaces clean. In this work, a novel fluorine-free anti-smudge coating system was developed by using poly(dimethysiloxane), tris(hydroxymethyl) aminomethane, and isophorone diisocynate to synthesize a hexa-functional coating precursor and utilizing hexamethylene diisocyanate trimer as a curing agent. The resultant anti-smudge coatings are highly transparent and can be applied to various substrates. These coatings exhibit repellency against water, hexadecane, ink, pump oil, and crude oil and show self-cleaning performance in air and oily environments. Moreover, they display anti-ink ability and can be employed to reduce bacterial contamination. Of note, they can endow substrates with protection against corrosion from strong acids, strong bases, salt solutions, and even aqua regia. The developed coatings also show potential for controllable liquid transport. Moreover, these versatile coatings are mechanically robust, demonstrating tolerance against abrasion, impact, and bending and also exhibiting excellent adhesion to various substrates, indicative of their availability for widespread applications.
研究领域:
材料科学
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表面工程
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2022
·
IF 6.206
Peizhuang Wang,Li Zhang,Zhiqing Hu,Jiaqi Shang,Jiang Zhou
A facile construction of transparent and amphiphobic coatings has been established by simply casting aqueous suspension of chitin nanofibers (ChNFs) on glass substrate and then modified using 1 H ,1 H ,2 H ,2 H -perfluorodecyltrichlorosilane (PFDTS) through vapor deposition . It was confirmed that the fluoroalkylsilane groups were grafted onto the ChNFs coating surface after the PFDTS deposition. An amphiphobic coating was achieved with static contact angles of 156° and 97° for water and oleic acid , and the coating possessed anti-fingerprint property. Moreover, after 5 rubbings with an ethanol-socked cotton ball or 100 wipes with a lens cloth under a load of 200 g, the water contact angle and oleic acid contact angle of the ChNFs coatings remained larger than 120° and around 80°, respectively, and the change in transmittance was <1.7 %. Such properties suggested that the prepared transparent and amphiphobic ChNFs coatings are promising in anti-fingerprint protection for optical lenses/sensors and display screens.
研究领域:
材料科学
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表面化学
·
生物材料
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2022
·
IF 5.546
Xiaoquan Li,Fuping Bian,Shi Li,Xuefeng Gui,Mingfeng Yao,Jiwen Hu,Shudong Lin
UV curing technology is a new green technology developed in the 21st century, and has been widely used in daily life and industrial production. However, a major drawback encountered with UV curing is oxygen inhibition, especially in free radical photopolymerization. As reported herein, three multifunctional silicone acrylate prepolymers were obtained via the one-step hydrosilylation of dipentaerythritol hexaacrylate (DPHA) and hydride-terminated polydimethylsiloxane (H-PDMS). These prepolymers contain five acrylate groups at each end of the polysiloxane chain, and also has a high viscosity, all of which contribute to overcome oxygen inhibition, and thus they have efficient anti-oxygen inhibition abilities. After the addition of a few photoinitiators, each of the prepolymers could be rapidly cured in air to yield a transparent film. The transparency of these cured films is over 95% on the surface of an underlying polyethylene terephthalate (PET) substrate. They remain stable at temperatures reaching up to 352.2 to 364.8 °C, thus demonstrating that they have excellent heat resistance. Water droplets exhibit water contact angles between 103° and 105° on these films, and surface energies of the cured films are from 24.58 to 20.69 mN/m. Finally, the coatings have good anti-smudge and anti-fingerprint properties, and the overall results show that these films have potential applications as UV-curable anti-smudge coatings.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2023
·Vol. 10
·期 16
·2300045
·
IF 5.4
Yimin Luo,Boran Hao,Jingbo Li,ZhiPeng Liu,Yujie Yang,Litao Chen,Shuaikang Liu,Zhuangzhu Luo
In this work, a simple anti-fingerprint strategy (reduced ≈40–60%) to rearrange fingerprint droplets by patterned micro/nano-pore/spoons texture, air cushion and low surface energy is reported. Superior to previous precise and complex preparation methods, the micro/nano-texture are fabricated through conventional process of spray and dip. The pore and spoon can be freely switched by changing the process. The number (N) and size (r) of pores and spoons are controlled intelligently by solvent volatilization and interfacial tension ( γ FP/PU − H 2 O ${{\bm{\gamma }}_{{\rm{FP/PU}}{\bm{ - }}{{\rm{H}}_2}{\rm{O}}}}$ and γ FP/PU − Solvent ), the key for pore/spoon's forming and expanding. A physical model of interface intelligent controlling the micro/nano-pore/spoon surface texture induced by “Vacancy-Capture” is proposed. The description is being reported, for the first time, to the knowledge, expecting to make it possible to prepare anti-fingerprint engineering materials with newly potential industrial applications on optical device for large-scale in the future.
研究领域:
材料科学
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Ximing Zhong,Jie Sheng,Heqing Fu
In this paper, a novel anti-smudge coating cured by natural sunlight exposure or 35 s of UV irradiation was prepared. The coating shows highly transparency and it can be used in various substrates, including heat-sensitive materials. Besides, this coating repels against water, ink, cooking oil, crude oil, artificial fingerprint liquid, and protects substrates against strong acid, strong base, salt solution and organic solvent, indicative of striking self-cleaning and protective properties. And this coating can be used to fabricate anti-smudge products in various colors without compromising its anti-smudge properties. Optional curing strategies and rapid UV-curing property make this novel coating can be used in the special area.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2022
·
IF 6.206
Jingde Yang,Li Zhang,Peizhuang Wang,Jiang Zhou
In order to facilitate nano-fibrillation via ultrasound to prepare cellulose nanofibers (CNFs) from flocculent pulp, a semi-dry esterification was carried out to modify the pulp with maleic anhydride . Small amount water addition improves mixing of the reactants and increases extent of esterification. The modification significantly enhances nano-fibrillation of the pulp in subsequent ultrasound treatment. CNFs with about 200–400 nm in length and about 20–25 nm in width are obtained from the esterified pulp. CNFs coating, prepared by casting CNFs aqueous dispersion on glass slide, gives rise to about 4% increase in transmittance of the slide and improves anti-fingerprint property of the slide. The results of this study provide a solution for production of CNFs from flocculent pulps and demonstrate the potential application of CNFs for anti-reflection and anti-fingerprint coatings.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Xiaoquan Li,Fuping Bian,Shi Li,Xuefeng Gui,Mingfeng Yao,Jiwen Hu,Shudong Lin
UV-curing technology is an efficient, energy-saving and eco-friendly technology, which has been widely used in industrial production and daily life. However, UV curing is difficult to achieve with thick coatings, coloured coatings, and shadowed regions of coatings, which greatly limits the applicability of this process. As reported herein, UV/moisture dual curable siloxymethyl-modified silicone acrylate (SMSA) prepolymers were synthesized through the two-step sequential hydrosilylation of pentaerythritol tetraacrylate (PETTA), hydride-terminated polydimethylsiloxane (H-PDMS) and trimethoxysilane (TMOS). The prepolymer contains UV-curable acrylate groups and moisture-curable siloxymethyl groups, and thus it can be readily cured via exposure to UV light , moisture, or a combination of UV light and moisture. Combining the advantages of UV and moisture curing, the prepolymer is capable of curing rapidly and overcomes the problem of UV curing about shadowed areas and thick coatings. This combined UV/moisture dual curing process also solves the problem of oxygen inhibition and poor adhesion of conventional UV-curable silicone materials. The properties of UV/moisture dual cured coatings were characterized and found to exhibit excellent transparency, heat resistance , as well as hydrophobicity . The transparencies of these coatings are over 93% even the thicknesses are up to 100 µm. The coatings remain stable when temperatures reach up to 296.5 and 317.2 °C. The water contact angles of coatings are between 97° and 103°, and surface energies of the coatings vary from 25.43 to 21.27 mN/m. The UV/moisture dual cured coatings also have excellent resistance to smudge and fingerprints. Therefore, they will be suitable for the preparation of anti-smudge and anti-fingerprint coatings.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2020
·
IF 4.469
Ximing Zhong,Meng Zhou,Sheng Wang,Heqing Fu
Existing approaches for the preparation of anti-smudge surfaces are prominently confined to the use of fluorinated materials and highly toxic organic solvents. Smooth water-borne non-fluorinated anti-smudge surfaces are highly desirable for their high safety, low cost and environmental friendliness, and they could also address the challenges plagued by the deficiencies in long-term stability, durability, and scalability existing in present coating systems. Herein, we, for the first time, develop a novel smooth non-fluorinated anti-smudge system by crosslinking the hydrophilic groups in two water-borne components. The resultant surfaces are highly transparent, and they show striking anti-smudge performance toward various liquids, including water, hexadecane, diiodomethane, decane, ethanol, etc. Besides, these surfaces demonstrate remarkable chemical shielding ability against acid solution and alkali solution and thus protect substrates against exposure to harsh chemical environments. Also, they exhibit self-healing ability against chemical and physical damages. Compared with commercial fluorinated amphiphobic surface and superhydrophobic surface, these non-fluorinated surfaces show incomparable advantages in anti-smudge performance, pump oil and crude oil droplets could slide off the surface without leaving any traces. Furthermore, these surfaces could be applied for anti-graffiti and anti-fingerprint purposes due to their outstanding anti-smudge performance toward water-borne and oil-borne paints, ink, and artificial fingerprint liquid. More strikingly, they could maintain anti-smudge performance even after being subjected to long-term UV irradiation and physical damages, such as impact and scratch, indicative of the remarkable weathering resistance and the outstanding mechanical durability of these coating surfaces. Therefore, excellent performances in addition to the cost-effective and environmentally-friendly features make these newly-developed smooth water-borne non-fluorinated anti-smudge surfaces promising for widespread applications.
研究领域:
材料科学
·
表面化学
·
环境科学
·
涂层技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）