Abstract
Transparent superhydrophobic materials can be used in car glass, curtain walls, mobile phone screens, and other items. However, the hydrophobicity, transparency, and abrasion resistance of the transparent superhydrophobic coating are mutually restricted, and it is difficult to prepare transparent superhydrophobic coating with good performance. In this article, taking the mobile phone screen transparent coating as the research object, the inorganic silicon resin crystal coating as the main material, and the organic silicon resin as the binder and the hardness regulator, with the addition of the hydrophobically modifying nano silica particles, a high-transparent, wear-resistant, and superhydrophobic coating is researched. Experiments showed that when the composition mass ratio of SJ-32F resin to 9825 resin is 9:1 and the mass ratio of modified nano silica is 1.7%, the coating has a hardness of 3H–4H suitable for mobile phone screens, the contact angle of the coating can reach more than 150°, the rolling angle is less than 10°, and the light transmittance of the coating remains high at 91–95%. The cross-hatch adhesion strength of the coating reaches 5B, and the average adhesion strength measured by the adhesion pull tester is about 5.4 MPa. When the rubbing times reached 100, the light transmittance of the coating remained above 80%, and the contact angle remained basically unchanged.
Highlights
IntroductionBecause of its frequent use, the screen of a mobile phone is polluted by other substances
We took the transparent coating of a mobile phone screen as the research object, used high-hardness (9H) inorganic silicon resin crystal coating as the main material, and used organic silicon resin as the binder, with nano silica particles hydrophobically modifying with heptafluorodecyltriethoxysilane; a high-transparent, wear-re
We took the transparent coating of a mobile phone screen as the research object, used high-hardness (9H) inorganic silicon resin crystal coating as the main material, and used organic silicon resin as the binder, with nano silica particles hydrophobically modifying with heptafluorodecyltriethoxysilane; a high-transparent, wear-resistant, superhydrophobic coating with good comprehensive performance was prepared on the glass surface by spraying
Summary
Because of its frequent use, the screen of a mobile phone is polluted by other substances. It is necessary to develop a self-cleaning, wear-resistant and transparent mobile phone screen, and superwetting materials are one of the choices of mobile phone screen coatings. Super-wetting materials have good anti-current conduction, anti-corrosion, waterproof, anti-fog, antimold, anti-snow, anti-freeze, anti-sticking, anti-pollution, and resistance reduction qualities, and other functions [1–6] which have a wide range of application prospects in the fields of transportation, clothing and textiles, liquid transportation, biomedicine, daily necessities and packaging, construction, and microanalysis [7–11]. Transparent superhydrophobic materials can be used in field lenses, car glass, curtain walls, mobile phone screens, and other occasions, and have anti-fouling, anti-fog, and waterproof properties [12–15], which can increase the safety and reliability of equipment, and is a special coating that is widely used. The light transmittance of this coating is one of the very important parameters
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