Organic silicone modified high water absorption resin and preparation method thereof
A technology of super absorbent resin and organosilicon, applied in the field of organosilicon modified super absorbent resin and its preparation, super absorbent resin and its preparation field, can solve the problems of hindering the penetration of water molecules and decreasing the water absorption rate, and achieve its own Effects of increased strength, low cohesive energy, and high bond energy
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[0012] (1), preparation of oligosiloxane
[0013] Weigh the required amount of organosiloxane, dissolve it in dilute acetic acid solution with a concentration of 0.1-3wt%, and control the concentration of organosiloxane to 0.1-5%. The clear and transparent oligosiloxane aqueous solution is used for polymerization. If the solution is cloudy, it should not be used. The acid used is preferably a dilute solution of AA or AMPS.
[0014] (two), the preparation of organosilicon modified superabsorbent resin
[0015] Non-limiting examples are described as follows:
[0016] Aqueous Chemical Polymerization
[0017] 1. Take AA and partially neutralize it with alkali, the neutralization degree is 70-90%, add an aqueous solution of oligosiloxane to the monomer solution, control the amount of organosiloxane to 0.1wt% of AA, and adjust the monomer with water The total concentration is deoxidized by passing nitrogen under stirring, and then adding 0.05-0.25% initiator potassium persulfate...
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