In the presence of water, the alkoxy group of CFS-290 cas 21142-29-0[KBE503;Z-6036;Y-9936] will hydrolyze to form a reactive silicone hydroxyl group, while releasing ethanol as a by-product of the hydrolysis reaction. The methacryloyloxy group can be copolymerized with other monomers containing unsaturated double bonds such as acrylic acid, methacrylic acid, vinyl acetate, styrene, etc. under the action of heat or peroxide initiation, or with newly initiated unsaturated double bonds on plastics, rubber or resins under the action of peroxide initiation. The product can be fully or partially cross-linked and cured by the addition reaction with the newly initiated unsaturated double bond on the plastic, rubber or resin under the action of peroxide initiation. Through the above two-way reaction, this product can realize the coupling and linking between inorganic fillers (or substrates) and organic polymer materials, or realize the silanization grafting modification or cross-linking of resins.

The hydrolysis of CFS-290 cas 21142-29-0[KBE503;Z-6036;Y-9936] requires the use of organic acids (such as formic acid, acetic acid, etc.) as catalysts, specifically by adjusting the pH of water to about 3.5~4.5, then adding silane and stirring for a period of time (at least 30 minutes or more) until the silane is completely dissolved and the solution is clear and transparent. Their hydrolysates are unstable and it is recommended to use them up within 24 hours. Fogging of the solution means that the silane has partially self-polymerized to form a polymer of silane (silicone) and failed.

Their aqueous solutions can significantly reduce the surface energy, and the hydrophobic organic part of the silane forms an oriented layer at the gas/liquid interface.

When treating mineral fillers, the minerals can be co-mingled with the silane at high shear rates without the addition of any solvent. After treating the silane, the treated substrate or mineral surface should be dried briefly at 104 to 121°C to allow the silanol to complete condensation and to remove the small amount of ethanol formed during hydrolysis of the ethoxysilane.

Suitable inorganic materials for this product include glass, glass fiber, glass wool, mineral wool, mica, quartz and other siliceous materials and aluminum hydroxide, magnesium hydroxide, kaolin, talcum powder, steel, zinc, aluminum and other metals and their oxides, but it is basically ineffective on fillers such as calcium carbonate, graphite, carbon black, barium sulfate and others that do not contain hydroxyl groups on their surfaces.

Suitable polymers for this product include (but not limited to) unsaturated polyester resin, peroxide-cured rubber such as EPR, EMDP, silicone rubber, butylbenzene, natural and other peroxide-cured rubber, peroxide-cross-linked plastics such as PE, PVC, etc.