Details

Autor(en) / Beteiligte

• Zheng, Hao
• Pan, Mingwang
• Wen, Jie
• Yuan, Jinfeng
• Zhu, Lei
• Yu, Haifeng

Titel

Robust, Transparent, and Superhydrophobic Coating Fabricated with Waterborne Polyurethane and Inorganic Nanoparticle Composites

Ist Teil von

• Industrial & engineering chemistry research, 2019-05, Vol.58 (19), p.8050-8060

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report the fabrication of a robust, transparent, and superhydrophobic organic–inorganic composite coating with simple, low-cost, effective, and environmentally friendly characteristics. First, a waterborne polyurethane (WPU) emulsion and silica fluoride (F-SiO2) nanoparticle dispersion were synthesized. Subsequently, the organic–inorganic superhydrophobic surfaces with low surface energy were constructed by spraying, in order, the WPU emulsion and F-SiO2 nanoparticle dispersion on substrates. The robust composite coating had superhydrophobicity and good optical transparency, in which the WPU provided a strongly adhesive elastic substance for the anchoring of superhydrophobic F-SiO2 nanoparticles to further construct a mechanically and chemically resilient nanocomposite coating. After 250 cycles of abrasion, a long period of ultraviolet irradiation, and oil-pollution and cross-cut tests, the nanocomposite coating still exhibited excellent properties including good self-cleaning, transparency, abrasion resistance, aging resistance, and strong adhesion. Even after being oil-contaminated, the WPU/F-SiO2 composite coatings still possessed superhydrophobic properties, showing their future application as self-cleaning surfaces and protective coatings for various substrates.