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      저자 : Maiping Yang (검색결과 2 건)
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        A Versatile Method to Construct Superhydrophobic Fabrics with Good Durability and Self-cleaning Performance

        Maiping Yang,WeiQu Liu,Liyan Liang,Chi Jiang,Yankun Xie,Hongyi Shi,Fengyuan Zhang,Ke Pi 한국섬유공학회 2020 Fibers and polymers Vol.21 No.8

        In this paper, various fabrics with good self-cleaning performance were prepared via a facile dip-coating method. The fabrics composed with different fibers and woven techniques were firstly immersed in ZnO sol to increase the surfaceroughness, then dip-coated in fluoroalkylsilane (HFT) solution to reduce the surface energy. The coated fabric showedexcellent superhydrophobicity with a water contact angle (WCA) of 157.8 o and water shedding angle (WSA) of 5 o. Themorphologies and chemical compositions of prepared fabrics were observed with SEM, XPS and EDS. The obtained fabrickept stable water-repelling property in acidic and alkaline solutions, solvents and UV irradiation. Benefited from its high antiwaterability and photocatalysis function of ZnO, the coated fabric demonstrated excellent self-cleaning performance. Thisversatile approach of constructing superhydrophobic fabrics is attractive and could be large-scaled employed in industrialproduction process.

      • KCI등재

        Hydrophobic Waterborne Epoxy Coating Modified by Low Concentrations of Fluorinated Reactive Modifier

        Hongyi Shi,Weiqu Liu,Maiping Yang,Xinsheng Liu,Yankun Xie,Zhengfang Wang 한국고분자학회 2019 Macromolecular Research Vol.27 No.4

        Fluorinated (meth) acrylate oligomer modified epoxy resin (PHFBMA-DGEBA) and polyether-modified epoxy resin (MPEG-DGEBA) were successfully synthesized and used as reactive modifier and emulsifier for epoxy resins, respectively. GPC, FTIR and 1H NMR were employed to verify the synthesis. The influence of both the concentration and the molecular weight of PHFBMA-DGEBA on the properties of waterborne epoxy resin coatings was investigated. Surface energy and surface composition were probed by contact angle measurements and X-ray photoelectron spectroscopy (XPS), which strongly confirmed the enrichment of fluorinate atoms on the surface. The surface energy of waterborne epoxy coating was decreased from 44.46 mN/m to 23.20 mN/m by adding just 0.09 wt% PHFBMADGEBA- 2, indicating its high effectiveness in improving the surface hydrophobicity. Moreover, the physical properties of waterborne epoxy coatings prepared with different concentration and molecular weight of fluorinated reactive modifier, such as water absorption, Shore D hardness, adhesion, thermal properties and optical transmittance, were also analyzed in detail. Taken together, the waterborne epoxy coatings prepared with low concentrations of reactive modifier are economical and have great potential in large scale industry applications.

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