Hydroxyl acrylic ester emulsion for artificial stone manufacturing, preparation method and artificial stone manufactured by hydroxyl acrylic ester emulsion
A technology of hydroxy acrylate and acrylate, applied in the field of water-based artificial stone, can solve the problems of uneven distribution, slow curing process, easy occurrence of gel, etc., and achieve the effects of uniform structure, stable production process and good dispersion fineness
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Embodiment 1
[0046] The preparation method of hydroxyacrylate emulsion is as follows:
[0047] (1) an emulsifier composed of 6 parts by weight of alcohol ether sulfosuccinate sodium salt, 4 parts of allyl alkyl sodium sulfonate and 4 parts of alkyl polyoxyethylene sodium sulfonate, 100 parts of water and a mixed monomer composed of 180 parts of methyl methacrylate, 20 parts of itaconic anhydride, 25 parts of allyl vinyl ester and 2 parts of acrylic acid are stirred evenly to obtain a uniform pre-emulsion;
[0048] (2) Add 320 parts by weight of water, 3 parts by weight of alcohol ether sulfosuccinate sodium salt, 2 parts by weight of sodium allyl alkyl sulfonate and 30 parts by weight of polymer polyol into the reactor, and heat up to 70~85 ℃, add 4~15% pre-emulsion, 0.2~0.8 parts by weight of initiator potassium persulfate solution, react for 10~40 minutes, until the blue light is sufficient; add the remaining pre-emulsion and 1.2~2.5 parts by weight of initiator potassium persulfate Solut...
Embodiment 2
[0065] The preparation method of hydroxyacrylate emulsion is as follows:
[0066] (1) The parts by weight are respectively 4 parts of allyl alkyl sodium sulfonates, 5 parts of vinyl alkyl sodium sulfonates, 8 parts of alkyl polyoxyethylene sodium sulfonates, 140 parts of water Stir evenly with a mixed monomer composed of 300 parts of hydroxyethyl methacrylate, 40 parts of maleic anhydride, 30 parts of allyl vinyl ester and 5 parts of acrylic acid to obtain a uniform pre-emulsion;
[0067] (2) Add 350 parts by weight of water, 3 parts by weight of alcohol ether sulfosuccinate sodium salt, 2 parts by weight of sodium allyl alkylsulfonate and 50 parts by weight of polymer polyol into the reactor, and heat up to 70~85 ℃, add 4~15% pre-emulsion, 0.2~0.8 parts by weight of initiator ammonium persulfate solution, react for 10~40 minutes, until the blue light is sufficient; drop the remaining pre-emulsion and 1.2~2.5 parts by weight of initiator ammonium persulfate Solution, the time...
Embodiment 3
[0084] The preparation method of hydroxyacrylate emulsion is as follows:
[0085] (1) An emulsifier composed of 3 parts by weight of alcohol ether sulfosuccinate sodium salt, 6 parts of vinyl alkyl sulfonate sodium and 5 parts of alkyl polyoxyethylene sodium sulfonate, 120 parts of water Stir evenly with a mixed monomer composed of 220 parts of hydroxyethyl methacrylate, 50 parts of hydroxypropyl acrylate, 20 parts of allyl vinyl ester and 3 parts of itaconic acid to obtain a uniform pre-emulsion;
[0086] (2) Add 300 parts by weight of water, 3 parts by weight of alcohol ether sulfosuccinate sodium salt, 2 parts by weight of sodium allyl alkyl sulfonate and 10 parts by weight of polymer polyol into the reactor, and heat up to 70~85 ℃, add 4~15% pre-emulsion, 0.2~0.8 parts by weight initiator sodium persulfate solution, react for 10~40 minutes, until the blue light is sufficient; drop the remaining pre-emulsion and 1.2~2.5 parts by weight initiator sodium persulfate Solution,...
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