Super-absorbent self-crosslinking epoxy acrylate copolymer as well as preparation and application thereof
A technology of epoxy acrylate and methyl methacrylate, applied in the field of polymers, can solve the problems of complex formula and preparation process, unsatisfactory film-forming property, water absorption and thermal stability, etc., and achieve the best humidity control effect. , strong water absorption, excellent film-forming effect
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Embodiment 1
[0061] (1) Preparation of highly water-absorbent self-crosslinking epoxy acrylate copolymer emulsion
[0062] Raw material ratio: by weight
[0063] 1 part methyl methacrylate, 1 part butyl acrylate, 1 part methacrylic acid, 1 part β-hydroxypropyl methacrylate, 1 part glycidyl methacrylate, 1 part sodium bicarbonate, potassium persulfate 1 part, 1 part of compound emulsifier (0.5 part of non-ionic emulsifier Tween-20, 0.5 part of ionic sodium lauryl sulfate), 1 part of deionized water.
[0064] Preparation process: add deionized water, neutralizer, compound emulsifier and monomer methyl methacrylate 0.2 parts, butyl acrylate 0.2 parts, methacrylic acid 0.2 parts, methacrylic acid-β-hydroxypropyl 0.2 parts of glycidyl methacrylate and 0.2 parts of glycidyl methacrylate were stirred and pre-emulsified at 50°C for 20 minutes; the temperature was raised to 80°C, and then the remaining monomers and initiators were added dropwise into the reactor, and the polymerization reaction wa...
Embodiment 2
[0071](1) Preparation of highly water-absorbent self-crosslinking epoxy acrylate copolymer
[0072] Raw material ratio: by weight
[0073] 20 parts of methyl methacrylate, 10 parts of butyl acrylate, 10 parts of acrylic acid, 15 parts of hydroxyethyl acrylate, 15 parts of glycidyl methacrylate, 5 parts of sodium bicarbonate, 5 parts of potassium persulfate, 5 parts of compound emulsifier (1 part of non-ionic emulsifier OP-10, 4 parts of ionic sodium lauryl sulfate), 30 parts of deionized water.
[0074] Process: adding deionized water, sodium bicarbonate, compound emulsifier and monomer methyl methacrylate 2 parts, butyl acrylate 2 parts, acrylic acid 1 part, hydroxyethyl acrylate 1.5 parts, methacrylic acid 0.5 part of glycidyl ester, stirred and pre-emulsified at 30°C for 40 minutes; raised the temperature to 85°C, then added the remaining mixed monomer and initiator dropwise into the reactor, and polymerized for 2 hours under stirring to obtain a blue phase white superabso...
Embodiment 3
[0081] (1) Preparation of highly water-absorbent self-crosslinking epoxy acrylate copolymer emulsion
[0082] Raw material ratio: by weight
[0083] 50 parts of methyl methacrylate, 20 parts of butyl acrylate, 30 parts of fumaric acid, 30 parts of hydroxyethyl methacrylate, 30 parts of glycidyl methacrylate, 8 parts of sodium bicarbonate, 8 parts of potassium persulfate, 8 parts of compound emulsifier (1 part of non-ionic emulsifier OP-10, 7 parts of ionic sodium lauryl sulfate), 40 parts of deionized water.
[0084] Preparation process: add deionized water, sodium bicarbonate, compound emulsifier and 8 parts of methyl methacrylate, 8 parts of butyl acrylate, 6 parts of fumaric acid, and 5 parts of hydroxyethyl methacrylate into the reactor , 5 parts of glycidyl methacrylate, stirred and pre-emulsified at 20°C for 100 minutes; raised the temperature to 65°C, then added the remaining monomer and initiator dropwise into the reactor, and polymerized for 5 hours under stirring to...
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