首页|Room Temperature Processed Hard Easy Clean Coating Using Ammonia Treatment
Room Temperature Processed Hard Easy Clean Coating Using Ammonia Treatment
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NETL
NSTL
Trans Tech Publications Ltd
In this paper we report the fabrication of hydrophobic hard coatings using sol-gel processing and cured at room temperature by an ammonia-assisted process. The coating thickness can be tuned from several hundreds of nanometer to several microns. These coatings show both high transparency (better than PMMA or glass substrates) and high hardness (pencil hardness 2H-4H on PMMA). The coatings are very smooth with surface roughness Ra less than 2 nm for coatings with different thicknesses from 200 nm to 2 μm. The water contact angle (WCA) of the coating is about 115 to 120° and the sliding angle for a 20 μl water drop is less than 10°. The advantage of this process is the ease for larger area application and especially suitable for plastic surface treatment due to the low temperature curing process.
sol-gelammonia treatmenthardnesshydrophobic
Zhang Xiao、Qian Min、Liu Yuchan、Xie Hong
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Singapore Institute of Manufacturing Technology, Singapore 638075
NETL
NSTL
Trans Tech Publications Ltd
