Superefficient and robust polymer coating for bionic manufacturing of superwetting surfaces with “rose petal effect” and “lotus leaf effect”

Shuangjie Sun, Heng Li, Yahao Guo, Hao Yang Mi, Ping He, Guoqiang Zheng, Chuntai Liu, Changyu Shen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Mimicking the superwetting behaviors of nature creatures is advantageous for the development of multifunctional surfaces. Superhydrophobic surfaces are desired for applications such as self-cleaning, drag reduction, anti-staining, anti-corrosion, oil-water separation, etc. Herein, a superefficient approach is proposed to produce a robust ultrahigh molecular weight polyethylene (UHMWPE) coating on various substrates by dripping and drying UHMWPE solutions. The superhydrophobic surfaces can be tuned between Cassie impregnating state and Cassie state, which resembles the “rose petal effect” and “lotus leaf effect”, respectively, by simply adjusting the quenching temperature and the solvent system. UHMWPE/ortho-xylene biphasic solution resulted in a wrinkled morphology with a high-adhesion superhydrophobic surface, while the UHMWPE/ortho-xylene/cyclohexanone triple-phase solution led to a highly porous morphology with a low-adhesion superhydrophobic surface. The micro-nano structured surfaces displayed promising applicability in droplet transportation, selective oil absorption, anti-staining, and self-cleaning. They also possess superior stability and durability against various liquids and mechanical impact. This work provides a highly efficient approach to produce versatile bionic superhydrophobic coatings with tunable superwetting states.

Original languageEnglish
Article number106090
JournalProgress in Organic Coatings
Volume151
DOIs
Publication statusPublished - Feb 2021

Keywords

  • Lotus leaf effect
  • Rose petal effect
  • Self-cleaning
  • Superhydrophobic
  • Ultrahigh molecular weight polyethylene

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Surfaces, Coatings and Films
  • Organic Chemistry
  • Materials Chemistry

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