Polyfunctional-group-modified polysiloxane emulsifier and preparation method thereof
A polysiloxane and multifunctional technology, which is applied in the field of polyfunctional modified polysiloxane emulsifier and its preparation, can solve problems such as product performance decline, system viscosity increase, product viscosity increase, etc. The effect of enhanced sexuality, less side reactions and stable product quality
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Embodiment 1
[0026] In a 500ml four-necked flask equipped with a thermometer, stirrer, nitrogen tube, and condenser, add 80.64g of α-16 olefins, 100.08g of low-hydrogen silicone oil with a hydrogen content of 0.2, and 24.00g of allyl Polyoxyethylene ether (M=200), 20.47g of isopropanol, under a nitrogen atmosphere, stirred and heated to 60°C, added 0.023g of catalyst (effective content 1000ppm), stirred at 60°C for 12h to complete the reaction, inserted Vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, cool down, get a colorless to light yellow translucent or slightly turbid flowable liquid, which is the polyfunctional modified polysiloxane emulsifier.
Embodiment 2
[0028] In a 500ml four-neck flask equipped with a thermometer, stirrer, nitrogen tube, and condenser tube, add 80.64g of α-16 olefins, 106.335g of low hydrogen-containing silicone oil with a hydrogen content of 0.25, and 27.00g of methyl-capped Allyl-terminated polyoxyethylene ether (M=600), 27.00g of methoxypolyethylene glycol acrylate (M=600), 48.195g of isopropanol, stirred and heated to 70°C under a nitrogen atmosphere, Add 0.145g of catalyst (effective content 1000ppm), stir the reaction at 70°C for 10h to end the reaction, connect to vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, cool down, and get a colorless to light yellow translucent or light yellow The turbid flowable liquid is the polyfunctional modified polysiloxane emulsifier.
Embodiment 3
[0030] In a 500ml four-neck flask equipped with a thermometer, a stirrer, a nitrogen tube, and a condenser tube, add 80.64g of α-12 olefins, 144.11g of low-hydrogen silicone oil with a hydrogen content of 0.36, and 19.2g of butyl-capped Allyl-terminated polyoxyethylene ether (M=400), methoxy polyethylene glycol methacrylate (M=400) of 19.2g, isopropanol of 78.95g, under nitrogen atmosphere, stirring is heated up to 80 ℃, add 0.342g of catalyst (effective content 1000ppm), stir the reaction at 80℃ for 8h to end the reaction, connect to vacuum, keep vacuum degree -0.08~-0.1MPa, 1~2h, cool down, and get colorless to light yellow translucent Or slightly turbid and flowable liquid, that is, polyfunctional modified polysiloxane emulsifier.
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