Reaction characteristics

In the presence of water, the alkoxy group of CFS-563 [31024-56-3] is hydrolysed to form a reactive silicone hydroxyl group, with the release of methanol as a by-product of the hydrolysis reaction. The silicone hydroxyl groups are chemically bonded to the hydroxyl groups on the surface of various inorganic materials (substrates or fillers) by condensation, while their diamines are chemically or physically bonded to suitable polymers, enabling the coupling of inorganic fillers (or substrates) to organic polymeric materials by the above two-way reaction.
The hydrolysis reaction of CFS-563 [31024-56-3] occurs automatically in the presence of water, without the addition of acids as catalysts. The pH of its hydrolysate solution is generally in the range of 10 to 11. To obtain a more stable hydrolysis product, it is recommended that the pH of the hydrolysate be adjusted to about 4.
The product will react with ketone and ester solvents, so it is not recommended to dilute the product with these solvents. Silane itself or silanised substrates can react with carbon dioxide in the air to form the corresponding carbonates or carbamates.
Suitable inorganic materials for this product include siliceous materials such as glass, glass fibre, glass wool, mineral wool, mica and quartz and metals and their oxides such as aluminium hydroxide, magnesium hydroxide, kaolin, talc, steel, zinc and aluminium, but are largely ineffective on fillers such as calcium carbonate, graphite, carbon black and barium sulphate which do not contain hydroxyl groups on their surface.
Suitable polymers for this product include (but are not limited to) phenolic, epoxy, furan, urea-formaldehyde, polyurethane, acrylic, polyester, silicone, nitrile and other thermosetting resins and plastics such as nylon, polycarbonate, PBT, PET, EVA, modified PP, PVC, PVB, PVAC and PS.