In summer, the body secretes more oil and sweat, and the residual fingerprints on the screen of electronic devices become more and more obvious, which seriously affects the viewing experience. In order to solve this problem, anti-fingerprint film came into being. The common anti-fingerprint films on the market are mainly oleophobic and hydrophobic and frosted. The sol-gel method is a common method for producing oleophobic and hydrophobic anti-fingerprint films.

This method dissolves chemical substances containing specific functions in a solvent to form a precursor solution (sol), which is then coated on the surface of the substrate. After hydrolysis and condensation reactions, the sol gradually turns into a gel and finally forms a solid film. IOTA's n-propyltrimethoxysilane is an important precursor raw material in the sol-gel method.

n-propyltrimethoxysilane performs well in the preparation of anti-fingerprint films. First, the propyl group in its molecular structure has strong hydrophobicity and can form a hydrophobic layer with low surface energy on the surface of the film. It effectively reduces the adhesion of sweat and oil, thereby achieving excellent anti-fingerprint effect. Secondly, it is colorless and transparent, and the film prepared with it has a very high light transmittance and will not affect the screen display effect of electronic devices. In addition, since n-propyltrimethoxysilane can form a highly cross-linked siloxane network structure, this structure gives the film excellent wear resistance and effectively prevents the film from being scratched during daily use.

The sol-gel method is not only simple and efficient, but also can be carried out at a lower temperature. As a key precursor raw material, IOTA's n-propyltrimethoxysilane is widely used in the preparation of functional coatings for many substrates such as ceramics, glass, and metals.

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