Photostability and durability properties of photochromic organosilica coating on fabric
Parhizkar,M, Zhao,Y, Wang,X and Lin,T 2014, Photostability and durability properties of photochromic organosilica coating on fabric, Journal of Engineered Fibers and Fabrics, vol. 9, no. 3, pp. 65-73.
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Photostability and durability properties of photochromic organosilica coating on fabric
Photochromic fabrics were prepared by a dip-coating method using a silica sol-gel solution containing photochromic dyes. The coated fabric showed a rapid photochromic response. Three methods; incorporating a UV stabilizer in the coating layer, hydrophobic treatment of the porous surface, and covering the coating layer with an additional silica layer; were used to improve the photostability and durability. All three treatments improved the photostability without noticeably changing the photochromic response/fading speeds. Most of the treatments reduced the washing and abrasion durability. The extra coating layer increased the fabric rigidity.
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