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  11. Highly Transparent Anti-smudge Coatings For Self-cleaning, Controllable Liquid Transport, And Corrosion Resistance

Highly Transparent Anti-Smudge Coatings for Self-Cleaning, Controllable Liquid Transport, and Corrosion Resistance

Hua Xu1, Chao Chen1, Shunfeng Hu1

  • 1Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Polymers
|February 13, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

A new fluorine-free anti-smudge coating was developed. This versatile coating offers transparency, repellency, self-cleaning, and robust protection for various applications.

Area of Science:

  • Materials Science
  • Surface Chemistry
  • Protective Coatings

Background:

  • Transparent anti-smudge coatings are crucial for maintaining surface cleanliness in various applications.
  • Existing coatings often rely on fluorine-based compounds, raising environmental concerns.
  • Developing effective fluorine-free alternatives is a significant challenge.

Purpose of the Study:

  • To develop a novel, highly transparent, and fluorine-free anti-smudge coating system.
  • To evaluate the repellency, self-cleaning, anti-corrosion, and mechanical properties of the developed coating.
  • To explore the potential applications of this versatile coating technology.

Main Methods:

  • Synthesized a hexa-functional coating precursor using poly(dimethysiloxane), tris(hydroxymethyl) aminomethane, and isophorone diisocyanate.
Keywords:
anti-ink abilityanti-smudge coatingscorrosion resistancemechanical robustness

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  • Utilized hexamethylene diisocyanate trimer as a curing agent for the coating formulation.
  • Tested coating performance on various substrates, assessing transparency, repellency, self-cleaning, corrosion resistance, and mechanical robustness.

    • Main Results:

    • Achieved highly transparent anti-smudge coatings with excellent repellency against water, oils, and ink.
    • Demonstrated effective self-cleaning properties in both air and oily environments.
    • Confirmed robust protection against strong acids, bases, salt solutions, and aqua regia.
    • Exhibited mechanical robustness, including tolerance to abrasion, impact, and bending, with excellent adhesion.
    • Showcased potential for controllable liquid transport and reduced bacterial contamination.

    Conclusions:

    • A novel fluorine-free anti-smudge coating system was successfully developed.
    • The coatings offer a unique combination of transparency, broad-spectrum repellency, self-cleaning, and superior protective properties.
    • These versatile and mechanically robust coatings hold significant promise for widespread industrial and commercial applications.
    self-cleaning performance