Preparation of superhydrophobic and UV blocking cotton fabric via sol-gel method and self-assembly

Chengyu Pan, Li Shen, Songmin Shang, Yanjun Xing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

56 Citations (Scopus)

Abstract

Superhydrophobic surface has been successfully prepared on cotton substrates with inexpensive and ordinary raw materials, Al(NO3)3and sodium stearate (C17H35COONa). Such surfaces were obtained first by dip-coating the nano-Al sol, then the surface of the Al coating was modified with sodium stearate, to gain a thin film through self-assembly. The wettability of treated fabrics was characterized by water contact angle, spray test and hydrostatic pressure test. The results showed that the cotton fabrics treated with 1.5% Al sol and 20 mmol/L sodium stearate showed excellent hydrophobic properties and UV protection efficiency, water contact angle could reach 146.27° and the UPF value was 164.06 (UPF rating 50+). The morphology and surface roughness were characterized by SEM and AFM. The interaction between sodium stearate and Al coating was elucidated by XPS.
Original languageEnglish
Pages (from-to)110-117
Number of pages8
JournalApplied Surface Science
Volume259
DOIs
Publication statusPublished - 15 Oct 2012

Keywords

  • Cotton
  • Self-assemble
  • Sol-gel
  • Superhydrophobicity
  • UV-blocking

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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