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The fabrication of mechanically durable and stretchable superhydrophobic PDMS/SiO₂ composite film.

ABSTRACT: Stretchable superhydrophobic film was fabricated by casting silicone rubber polydimethylsiloxane (PDMS) on a SiO₂ nanoparticle-decorated template and subsequent stripping. PDMS endowed the resulting surface with excellent flexibility and stretchability. The use of nanoparticles contributed to the sustained roughening of the surface, even under large strain, offering mechanically durable superhydrophobicity. The resulting composite film could maintain its superhydrophobicity (water contact angle ≈ 161° and sliding angle close to 0°) under a large stretching strain of up to 100% and could withstand 500 stretching-releasing cycles without losing its superhydrophobic properties. Furthermore, the obtained film was resistant to long term exposure to different pH solutions and ultraviolet light irradiation, as well as to manual destruction, sandpaper abrasion, and weight pressing.

SUBMITTER: Xue CH

PROVIDER: S-EPMC9054060 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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The fabrication of mechanically durable and stretchable superhydrophobic PDMS/SiO2 composite film.

Xue Chao-Hua CH Xue Chao-Hua CH Tian Qian-Qian QQ Jia Shun-Tian ST Zhao Ling-Ling LL Ding Ya-Ru YR Li Hui-Gui HG An Qiu-Feng QF

RSC advances 20200521 33

Stretchable superhydrophobic film was fabricated by casting silicone rubber polydimethylsiloxane (PDMS) on a SiO2 nanoparticle-decorated template and subsequent stripping. PDMS endowed the resulting surface with excellent flexibility and stretchability. The use of nanoparticles contributed to the sustained roughening of the surface, even under large strain, offering mechanically durable superhydrophobicity. The resulting composite film could maintain its superhydrophobicity (water con ...[more]

PMID: 35515442

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