Superhydrophobic and mechanically robust polysiloxane composite coatings containing modified silica nanoparticles and PS-grafted halloysite nanotubes

Jie Wang; Ling Zhang; Chunzhong Li

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Superhydrophobic and mechanically robust polysiloxane composite coatings containing modified silica nanoparticles and PS-grafted halloysite nanotubes

Full Length Article | Updated：2026-01-06

- Superhydrophobic and mechanically robust polysiloxane composite coatings containing modified silica nanoparticles and PS-grafted halloysite nanotubes
- Chinese Journal of Chemical Engineering Vol. 52, Issue 12, Pages: 56-65(2022)
- Affiliations：
  
  Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science & Technology,Shanghai,China,200237
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Jie Wang, Ling Zhang, Chunzhong Li. Superhydrophobic and mechanically robust polysiloxane composite coatings containing modified silica nanoparticles and PS-grafted halloysite nanotubes[J]. Chinese Journal of Chemical Engineering, 2022, 52(12): 56-65.
DOI：

Jie Wang, Ling Zhang, Chunzhong Li. Superhydrophobic and mechanically robust polysiloxane composite coatings containing modified silica nanoparticles and PS-grafted halloysite nanotubes[J]. Chinese Journal of Chemical Engineering, 2022, 52(12): 56-65. DOI：

摘要

Abstract

Excellent mechanical properties are the prerequisite for the application of superhydrophobic polymer coatings. However

significantly improving the mechanical properties without affecting other properties such as hydrophobicity is a huge challenge. In this study

a superhydrophobic coating with excellent mechanical properties was prepared by spraying a mixture of polysiloxane resins based on three siloxane monomers

hexadecyltrimethoxysilane (HDTMS) modified nano-SiO

particles (SiO

-HDTMS) and polystyrene-grafted halloysite nanotubes (HNTs-PS). SiO

-HDTMS dispersed homogeneously in polysiloxane coatings and the water contact angle of corresponding coating exceeding 150°

achieving superhydrophobicity. The SiO

-HDTMS/HNTs-PS/polysiloxane composite coatings showed excellent abrasion resistance with the water coating contact angle remaining above 150° after 90 abrasion cycles

indicating that HNTs-PS can significantly improve the mechanical properties of the coating without affecting the hydrophobic properties of the coating. The achieved coating also exhibited excellent antifouling and acid and alkali corrosion resistance. This

work provides a convenient and ecologically friendly method to prepare superhydrophobic polysiloxane composite coating with excellent mechanical properties

which is promising in the application of anti-fouling

anti-corrosion

and oil–water separation

etc

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