Siwin is a leading manufacturer and supplier of organosilanes for over 15 years.

Alkyl silanes possess alky(methyl, ethyl, propyl, butyl... to dodecyl, hexadecyl, Octadecyl) and alkoxy groups (hydrolyzable groups).  

Alkyl silanes are a type of silicon-based chemical substance that can form a protective film on surfaces, enhancing the wear resistance, water resistance, and chemical resistance of objects. Adding long-chain silanes to pigments and fillers can improve adhesion and dispersion, resulting in a more uniform coating, while also providing rust and corrosion protection for metal surfaces. In addition, long-chain silanes can be used as surface treatment agents to improve the compatibility of cellulose fibers and mineral fillers with the matrix.

Compared to general-purpose silane coupling agents, alkyl especially long-chain silanes have higher hydrophobicity, which means that fillers treated with them will have greater dispersibility. Another advantage is that the cured material will have improved flexibility.

The alkyl silanes or long-chain silanes are widely used in below fields:

Concrete Protective Materials: Long-chain silane impregnants penetrate into the interior of concrete through the micropores on the concrete surface and form a silicate structure with excellent hydrophobicity through chemical reactions with active substances inside the concrete. This can effectively prevent the invasion of corrosive media carried by water, thereby improving the durability of concrete.

Paints and Plastics Field: Long-chain silanes are widely used in the field of paints and plastics, which can improve the heat resistance, weather resistance and chemical resistance of products. Adding long-chain silanes to paints can be used as inter-facial surfactants to improve the durability and adhesion of coatings; adding long-chain silanes to plastics can improve the anti - ultraviolet ability of products and prolong the service life of products.

Rubber Field: In the rubber field, long-chain silanes are used to treat natural rubber and synthetic rubber to make them more wear-resistant, tear-resistant and chemically resistant. Adding long-chain silanes can improve the adhesion between rubber and metals and plastics, and improve the processability and service life of products.