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标题:Formation of Turmeric-Based Thin Films: Universal, Transparent Coatings.
时间:2020-02-14 23:05:15
DOI:10.1021/acs.langmuir.7b00230
PMID:28345932
作者:Yeon, Do Kyoung; Ki, So Hyun; Choi, Jeanne
出版源: 《Langmuir》 ,33 (15) :3639-3646
摘要:Curry stains on clothes and dishes in daily life inspired us to investigate the potential use of turmeric powder, the major ingredient in curry, as a universal coating material. After condition optimization, the coating solution was made by boiling and filtering a turmeric slurry, and the coating was formed at pH 3, leading to the formation of ultrathin, transparent films. Various inorganic and polymeric substrates were successfully coated with turmeric-based materials, including gold, TiO2, SiO2, glass, stainless steel, indium tin oxide, nylon, polyethylene, polycarbonate, polypropylene, acryl, and poly(ethylene terephthalate). The turmeric-based coating was also applied to poly(tetrafluoroethylene) (PTFE, Teflon) and cyclic olefin copolymer (COC), and after double dip-coating, the water contact angle was changed from 118.2° to 49.1° for PTFE and from 91.2° to 44.7° for COC. The water contact angles for the other substrates converged to 35° after coating, confirming the substrate-independent universal co...
大小:1127 kb
页数:29 PAGES
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