Reaction characteristics

In the presence of water, the alkoxy group of CFS-S861 [CAS 2530-86-1] is hydrolysed to form a reactive silicone hydroxyl group, with the release of methanol as a by-product of the hydrolysis reaction. These silicone hydroxyl groups are chemically bonded to hydroxyl groups on the surface of various inorganic materials (substrates or fillers) by condensation reactions. Through these two-way reactions, the product enables the coupling and joining of inorganic fillers (or substrates) with organic polymeric materials.
The hydrolysis reaction of CFS-S861 [CAS 2530-86-1] occurs automatically in the presence of water and does not require the addition of acids as catalysts. The pH of their hydrolysate solutions is generally in the range of 10 to 11. For more stable hydrolysis products, it is recommended to adjust the pH of the hydrolysate 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.