Preparation method of ACR elastic resin with core-shell structure
A technology of elastic resin and core-shell structure, which is applied in the field of preparation of ACR elastic resin with core-shell structure, can solve the problem of ACR elastic resin losing elasticity, achieve the effects of improving elastic properties, excellent low-temperature performance, and improving compatibility
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Embodiment 1
[0043] (a) Synthesis of polysiloxane core emulsion
[0044] At room temperature, mix 40 parts of octamethylcyclotetraoxosilane, 1.0 parts of methyltrimethoxysilane, 1.2 parts of γ-methacryloxytrimethoxysilane, 100 parts of deionized water, and 1.2 parts of 31% concentrated hydrochloric acid , 0.8 parts of sodium dodecylbenzene sulfonate, and 0.2 parts of alkylphenol polyoxyethylene ether were mixed, pre-emulsified by a high-shear emulsifier for 10 minutes, and after deoxygenation by nitrogen, at a temperature of 80°C and a stirring rate of 250r React for 25.0 hours under the condition of / min, add 10% sodium hydroxide solution to adjust the pH value to 7, and obtain polysiloxane core emulsion, and the particle size of polysiloxane seed emulsion is 108nm;
[0045] (b) Synthesis of polysiloxane modified outer core emulsion
[0046] Mix 60 parts of butyl acrylate, 0.9 parts of sodium dodecyl sulfonate, 0.3 parts of alkylphenol polyoxyethylene ether, 0.5 parts of divinylbenzene, ...
Embodiment 2
[0050] (a) Synthesis of polysiloxane core emulsion
[0051] At room temperature, mix 30 parts of octamethylcyclotetraoxosilane, 0.6 parts of methyltrimethoxysilane, 1.8 parts of γ-methacryloxytrimethoxysilane, 90 parts of deionized water, and 0.7 parts of 31% concentrated hydrochloric acid , 0.6 parts of sodium dodecylbenzene sulfonate, and 0.2 parts of alkylphenol polyoxyethylene ether were mixed, pre-emulsified by a high-shear emulsifier for 10 minutes, and after deoxygenation by nitrogen, at a temperature of 65°C and a stirring rate of 250r React for 35.0 hours under the condition of / min, add 10% sodium hydroxide solution to adjust the pH value to 8, and obtain polysiloxane core emulsion, and the particle size of polysiloxane seed emulsion is 126nm;
[0052] (b) Synthesis of polysiloxane modified outer core emulsion
[0053] After mixing 70 parts of butyl acrylate, 1.2 parts of sodium dodecyl sulfonate, 0.4 parts of alkylphenol polyoxyethylene ether, 0.75 parts of allyl m...
Embodiment 3
[0057] (a) Synthesis of polysiloxane core emulsion
[0058] At room temperature, mix 60 parts of octamethylcyclotetraoxosilane, 0.3 parts of methyltrimethoxysilane, 6 parts of γ-methacryloxytrimethoxysilane, 150 parts of deionized water, and 1.5 parts of 31% concentrated hydrochloric acid , 1.5 parts of sodium dodecylbenzenesulfonate, and 0.5 parts of alkylphenol polyoxyethylene ether were mixed, pre-emulsified by a high-shear emulsifier for 10 minutes, and after deoxygenation by nitrogen, at a temperature of 70°C and a stirring rate of 210r React for 24.0 hours under the condition of / min, add 10% sodium hydroxide solution to adjust the pH value to 6, and obtain polysiloxane core emulsion, and the particle size of polysiloxane seed emulsion is 116nm;
[0059] (b) Synthesis of polysiloxane modified outer core emulsion
[0060] After mixing 40 parts of butyl acrylate, 0.6 parts of sodium dodecyl sulfonate, 0.2 parts of alkylphenol polyoxyethylene ether, 0.32 parts of 1,4 butan...
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