Silanes can interact with numerous substances (among them water).
Hydrophobic effects can be achieved by the application of alkylsilanes on a wide range of mineral substrates:
Porous surfaces, such as concrete, natural stone to create water repellence
Mineral fillers and pigments to improve dispersibility and compatibility in organic polymers
Oleophobic effects can be achieved by the application of fluoroalkylsilanes on a wide range of substrates.
Smooth surfaces, such as glass and ceramic to create durable anti-stick and easy-to-clean properties
Porous surfaces, such as concrete, natural stone to create easy-to-clean and anti-graffiti properties
Cellulose materials, such as wood to achieve long lasting water and oil repellence
Hydrophilic effects on mineral materials can be achieved by the use of silanes containing hydrophilic functionalities, such as amino, polyethylene oxide, and epoxy. These properties improve dispersibility in polar solvents, water, and polar polymers and allow higher filler loadings.
Organophilic effect on inorganic materials can be achieved by using a number of organofunctional silanes.
Many applications benefit from these properties:
Compatibility between filler/reinforcement and organic polymer
Higher filler loadings
Improved wetting of the inorganic material by the polymer