A durable superhydrophobic coating was fabricated via LBL self-assembly technology with 3-glycidyl oxypropyl trimethoxysilane (KH560),poly dodecyl/methylsilsesquioxane (PDMSQ) latex and crosslinked aminopolysiloxane (JASO) latex as building units,cotton fabrics as film-forming substrates.Finally,the application process were optimized by single factor experiments.The chemical composition and microscopic morphology of the fabric surface was analyzed by XPS and FESEM.Results shown that the as-prepared coating had an expected structure.Superhydrophobicity of the treated fabric was the best with static water contact angles (WCA) of 160.8° while the mass fraction of KH560,the solid contents of PDMSQ and JASO latexes were 1%,2%,and 1%,respectively.WCA could still reach 144.6°after 25 soaping cycles.FESEM results indicated that PDMSQ were evenly adsorbed on the cotton fabric surface and created a micro/nano dual scaled roughness in combination with micro-scaled roughness of cotton fibers itself,which finally provided favorable conditions for the construction of the superhydrophobic fabric and successfully prepared durable superhydrophobic coating.
Hao Lifen, Yang Jiaojiao, Xu Wei, Liu Hongna, Wang Xuechuan
. Assembly and performance of durable superhydrophobic coating on fabric surface[J]. New Chemical Materials, 2020
, 48(8)
: 121
-124
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.08.026
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