Gelest SIO6640.0

They are utilized to modify a variety of surfaces that include glass, metal oxides, plastics and nano-crystals. Plastic substrates are critical in the manufacture of flexible electronic displays. Gelest offers a multitude of materials for metallization via low temperature vapor deposition techniques such as CVD and ALD to yield conductive coatings and dielectric coatings for light emitting diodes to include OLEDs, PLEDs and Phosphorescent OLEDs. The ability to customize the refractive index of Group IV materials makes them ideal candidates for cladding fiber optic cables and planar wave guides. Gelest offers an extensive range of materials for antireflective and refractive index coatings.

Coupling Agent, Intermediate, Surface Modifier, Water Repellent

Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase.. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete.