Premium
Fabrication of durable superhydrophobic coating on fabrics surface for oil/water separation
Author(s) -
Ji Qiang,
Xiao Xinyan,
Ye Zhihao,
Yu Nanlin
Publication year - 2019
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.24982
Subject(s) - materials science , polydimethylsiloxane , coating , contact angle , composite material , abrasion (mechanical) , superhydrophobic coating , dip coating , fabrication , chemical resistance , medicine , alternative medicine , pathology
A superhydrophobic fabric coating with hierarchical structure was fabricated by a dip coating, in which dodecyltrimethoxysilane (DTMS)‐modified alumina (Al 2 O 3 ) was used as modifier and polydimethylsiloxane (PDMS) as additive. The effects of the amounts of Al 2 O 3 nano‐sized particles and PDMS on the water contact angle (WCA) and the sliding angle (SA) of the as‐prepared fabrics coating samples were studied. The surface morphology of the as‐prepared samples was characterized by SEM, and the abrasion resistance and chemical resistance experiments were performed by abrasion resistance test, tape tear test, and chemical soaking test. The results show that WCA and SA of the superhydrophobic fabrics coating are 158° and 6°, respectively. With the increasing addition of PDMS, the abrasion resistance of hydrophobic fabrics coating is improved. The WCA value of the as‐prepared fabrics coating is still >150° after five abrasion cycles. The obtained fabrics exhibit excellent superhydrophobicity and oleophilicity due to the hydrophobic modification of DTMS for Al 2 O 3 nano‐sized particles. And the separation efficiency of the as‐prepared superhydrophobic fabrics coating for n ‐dodecane and water system can reach 99.98%. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers