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Jun 20, 2023
The Si-H addition of hydrogen containing polymethylsiloxane (PHMS) and acrylate monomers mainly occurs in the bulk homogeneous solution, and is less used in lotion. Water was selected as the dispersion medium, and hydrogen containing polymethyl siloxane, Butyl acrylate, and Methacrylamide were used as raw materials to conduct lotion polymerization at 80 ° C. PHMS/Butyl acrylate (BA)/light Methacrylamide (NMA) organosilicon composite lotion with both excellent properties was obtained. The morphology, particle size, and film properties of its latex particles were studied. The results showed that the concentration of initiator increased, The particle size of lotion first decreases and then rapidly increases, while the conversion rate first increases and then decreases.
Under the action of chlorolead acid, dimethyl diphenyl siloxane, vinyl Trimethoxysilane and Glycidol acrylate blocked by dimethyl hydrogen are selected for hydrosilylation Addition reaction to obtain a siloxane. The coating is polymerized with styrene methacrylate butyl acrylate methacrylic acid mixed lotion, and dibutyltin Lauric acid curing agent is added. After coating, the coating has good appearance and acid resistance.