CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Yong Zhang,Qiuli Liu,Jing Li,Haichen Yao,Yihang Hou,Jiazi Hou
Optical antiglare films with high light transmittance and high haze are capable of mitigating the adverse effects of glare on eyes and offering a healthy visual experience. However, the haze increase is always accompanied with the severe loss of the light transmittance, posing a considerable challenge to simultaneously achieving high transmittance and high haze. In this work, a polyvinylbutyral (PVB) nanofibers-based polydimethylsiloxane (PDMS) film featuring of matched refractive indices, loosely fiber stacked density in PDMS, and appropriate fiber diameter close to the visible light wavelength, was prepared with exceptional antiglare property. Subsequently, it was further air sprayed with a hydrophobic F17@SiO 2 coating to endow the P-PVB/F17@SiO 2 composite film superhydrophobicity and self-cleaning with the water contact angle reaching 170.4°, expanding its practical applications. By employing a trimodal light regulation strategy, including Rayleigh scattering of nanoparticles, light reflection induced by micro-tunnels, and Mie scattering caused by nanofibers, the P-PVB/F17@SiO 2 film demonstrated an excellent transmittance of 90.73% and an admirable haze of 94.5%. Therefore, based on the straightforward, large-scale, cost-effective manufacturing, this work proposes a reliable way to achieve optical antiglare film with effective light regulation, which shows a great potential for applications in smart mobility, intelligent buildings, and flexible electronics, etc.
研究领域:
材料科学
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光学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2020
·Vol. 138
·期 14
·50160
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IF 2.52
Dongqiao Zhang,Jiemin Yi,Fei Zhao,Ye Yin,Zhijun Jin,Wenshi Ma,Xiaohong Peng,Dongjie Yang
Flexible organic light emitting diodes (FOLEDSs) require a barrier layer with transparency, thermal stability, and flame retardance to prevent water from inducing the corrosion of electrode and ultimately deterioration. Herein, HPS spheres were incorporated into the vinylidene chloride-methyl acrylate (VDC-MA) matrix to enhance the water vapor barrier property, thermostability, and anti-glare effect. Scanning electron microscopy showed that HPS spheres were more compatible with VM (89.86-10.14) by presenting better water vapor barrier property rather than with VM (92.38-7.62). The anti-glare effect of composite film was improved with HPS spheres, while the transparency still maintained over 80%. Thermogravimetric analysis showed that the weight loss still maintained over 50% with the incorporation of HPS spheres, indicating significant improvement compared with control VDC-MA films. Our research supplies an effective approach to prepare transparent and flame retardant hybrid films with enhanced water vapor barrier, thermostability, and anti-glare properties, which is promising in the encapsulation of FOLEDSs and other electronics areas.
研究领域:
材料科学
·
电子封装技术
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
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2024
·
IF 5.7
Manli Zhou,Taishun Zhang,Bao Zhang,Xiaohong Peng
Anti-glare coatings offer a promising solution for mitigating light pollution, with the construction of a rough surface being essential to their effectiveness. In this paper, a series of waterborne polyurethane (WPU) coatings with self-antiglare effect were successfully synthesized by adjusting the molar ratio of the post-chain extenders sodium N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonate (BES) and hydrazine hydrate (N 2 H 4 ). This approach utilized BES as a post-chain extender for the first time, resulting in a double micro-rough surface structure that enabled the coating to achieve better anti-glare effect with relatively lower roughness. The effects of BES and N 2 H 4 on particle size, morphology, gloss, zeta potential, transmittance, and hydrophilicity of WPU were investigated. When the BES content accounted for 30 mol% of the post-chain extenders, the average particle size of the emulsion was 1321.4 nm, and the 60° gloss of the coating was 36.1 GU. Additionally, we thoroughly analyzed the formation mechanism of the “worm-like” micro-rough structure on the surface of latex particles. The strongly hydrophilic -SO 3 − Na + groups in the emulsion pulled the molecular chains to extend to the outer layer of the latex particles. Upon water evaporation, these molecular chains curled up on the particle surfaces, forming a "worm-like" micro-rough structure. XRD spectrum, FBI-SEM, and TEM images confirmed that this micro-rough structure was formed by self-assembly on the particle surface rather than internal crystallization. This finding provides novel insights into the development of self-antiglare WPU coatings characterized by intricate rough surfaces. Furthermore, it contributes to the advancement of surface and interface science through improved performance of WPU coatings.
研究领域:
材料科学
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界面化学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2020
·
IF 4.469
Huihua Huang,Wei Zhou,Ziyuan Zhong,Shuangshuang Peng,Xiaohong Peng
Polymeric antiglare coatings are suitable for use on flexible substrates but are vulnerable to accidental scratches and cuts. Presently, polymers which can automatically heal the damages, has been successfully developed. However, the room-temperature self-healing polymers with superior mechanical robustness are still formidable challenge to prepare and highly desirable. Reported herein is an self-antiglare waterborne poly(urea-urethane) (WPU) (the transparency and the 60° gloss are 91.4 % and 27.2, respectively) possessing the superior robust mechanical properties at room-temperature self-healing materials, with the tensile strength and toughness up to 11.0 MPa and 52.1 MJ m −3 , respectively. For this purpose, aromatic disulfide containing two amino groups, which can offer a unique quadruple H-bond and a disulfide bond, were incorporated into the hard segment. Compared with linear-array H-bond, unique H-bond of zigzag array can undergo efficiency exchange at room temperature, inducing nearby disulfide metathesis. Therefore, the mechanical properties could be recovered to more than 83 % at room temperature after the sample was cut in half and reconnection. This finding can provide a novel insight into the research of robust room-temperature self-healing polymers and antiglare coatings.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER TESTING
·
2021
·
IF 4.282
Weiwei Fan,Junchao Wang,Zhengjun Li
To endow antiglare waterborne polyurethane with toughness, thermal stability, and water resistance is highly desired. Herein, we first prepared amphiphilic polyurethane modified silica (MSiO 2 ) nano-particles by in-situ polymerization and then physically incorporated it with waterborne polyurethane (WPU) dispersion to fabricate WPU composite (WPU-MSiO 2 ). The FT-IR, TG-DTG, and SEM analyses demonstrated that the urethane chains were covalently attached onto the silica surface, and the MSiO 2 exhibited good dispersibility and compatibility with WPU matrix. Moreover, embedded MSiO 2 particles could not only impart the WPU-MSiO 2 composites with good antiglare function, but also improve the mechanical, thermal, and water resistance of composites. Notably, the most effective enhancements in antiglare and other physicochemical performances were achieved when incorporating 3 wt% of MSiO 2 into the WPU dispersion to fabricate the WPU-MSiO 2 3 composite. In particular, the WPU-MSiO 2 3 composite film possessed the transmittance of 94.6% and 60° gloss of 27.0, respectively, which satisfying the requirement of an antiglare coating. Furthermore, WPU-MSiO 2 3 composite exhibited great increase in tensile strength, elongation at break, maximum decomposition temperature, and water contact angle (20.8 MPa, 636.5%, 389.5 °C, and 99.1°, respectively) as well when compared to the neat WPU and WPU-SiO 2 3 films. The present research provided a cost-effective way for preparing high-performance antiglare polymer coatings.
研究领域:
材料科学
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纳米技术
·
涂层技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Taishun Zhang,Manli Zhou,Bao Zhang,Xiaohong Peng
The use of waterborne polyurethane (WPU) is becoming increasingly prevalent in the effort to address the issue of glare. However, WPU continues to exhibit certain limitations in terms of its performance, including deficiencies in mechanical properties, and low chemical resistance. Consequently, this study employed polyacrylate (PA) modification to create waterborne polyurethane/acrylate (WPUA) hybrid emulsions with a core–shell structure, aiming to enhance their optical properties. Furthermore, different types of alcohol crosslinkers were added to investigate their effects on the optical and mechanical properties of the coatings. Accordingly, this paper presented the design and preparation of a multihydroxyl crosslinking modified antiglare core–shell PU@PA heteropolymer resin utilizing five different hydroxyl-containing crosslinking agents: polyhydroxy alcohols, trimethylolpropane, pentaerythritol, xylitol, and dipentaerythritol. The impact of selecting crosslinkers with varying hydroxyl numbers as well as optimizing their concentrations on particle size, gloss, and tensile strength of WPUA was thoroughly examined. Results revealed that with xylitol as the crosslinker at a mass fraction of 0.9%, the emulsion's average particle size was 680.6 nm, the gloss of the coating reached 42.8 GU, and the tensile strength was 22.31 MPa. The resulting functional WPUA exhibited excellent optical and mechanical properties, offering new insights for the development of antiglare 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
APPLIED SURFACE SCIENCE
·
2013
·
IF 2.112
Shisen Song,Yaojie Sun,Yandan Lin,Bo You
In this paper, we present a facile coating technique to fabricate the light diffusing film with hemispherical surface convex micro-structure. The coating was prepared by different ratio of light-diffusing particles (LDP)/polyacrylates composites via in situ radical polymerization, with the H 2 SO 4 and vinyl triethoxysilane (A-151) pretreatment made the LDP better dispersed and incorporated with polyacrylate polymer chains. When the mass ratio (LDP/polyacrylate) was 0.5, the film obtained the highest light-diffusing effect and more than 90% transmittance due to the formation of hemispherical surface convex micro-structure. The light diffusing films have excellent anti-glare property if applied to LED light system.
研究领域:
材料科学
·
光学工程
✓ 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）