1H,1H,2H,2H-Perfluorooctyltrimethoxysilane丨CAS 85857-16-5

1H,1H,2H,2H-Perfluorooctyltrimethoxysilane is a fluorinated organosilane widely used as a surface modifier, adhesion promoter, and hydrophobic agent in advanced material applications. It is commonly applied in the treatment of glass, ceramics, metals, and silicon-based substrates to impart water- and oil-repellency, reduce surface energy, and enhance chemical resistance. In polymer and coating industries, it is used to improve the compatibility between inorganic fillers and organic matrices, leading to enhanced mechanical properties and durability. It also finds applications in the fabrication of self-cleaning, anti-fouling, and anti-staining surfaces, as well as in electronics, optics, and automotive coatings where surface protection and long-term stability are critical. Its ability to covalently bond with hydroxyl-containing surfaces ensures durable and stable modification.

The benefits of 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane stem from its dual functionality: the perfluorinated tail provides excellent hydrophobicity and oleophobicity, while the trimethoxysilane group allows covalent attachment to hydroxylated surfaces. This results in durable, low-surface-energy coatings that resist water, oils, and dirt. The compound improves adhesion between organic and inorganic materials, enhancing mechanical strength and long-term stability in composites and coatings. Its thermal and chemical stability ensures performance under harsh processing and service conditions. Additionally, it enables the creation of functional surfaces with self-cleaning, anti-fouling, or protective properties, reducing maintenance and extending product lifespan. Its versatility in surface modification makes it valuable in industries ranging from electronics to construction and specialty coatings.