Fluorine-containing easily processed acrylate rubber and preparation method thereof
A technology of acrylate and ethyl acrylate, which is applied in the field of fluorine-containing easy-to-process acrylate rubber and its preparation, can solve the problems of expensive external mold release agent, corrosion of containers, easy to leave mold scale, etc., and achieve good durability High temperature performance, good processing performance, and the effect of improving processing performance
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Embodiment 1
[0029] Example 1 10g methyl acrylate, 80g ethyl acrylate, 5g hexafluorobutyl acrylate, 5g vinyl chloroacetate, 1g potassium persulfate, 1g ammonium bicarbonate, 200g deionized water, 2g sodium lauryl sulfate, 4g OP-10.
[0030] First, add 2g sodium lauryl sulfate, 4g OP-10, and part of deionized water into the emulsification tank and stir to dissolve; then add 10g methyl acrylate, 80g ethyl acrylate, 5g hexafluorobutyl acrylate, 5g vinyl chloroacetate After the ester is mixed, take 1 / 3 of it and add it to the emulsification tank, and emulsify at high speed for 30 minutes under the protection of nitrogen to form an emulsion; then add 1g of potassium persulfate, 1g of ammonium bicarbonate and part of deionized water into the mixing tank and stir to dissolve ;Transfer the emulsified emulsion and 1 / 3 initiator system solution to the reaction kettle in turn, initiate the polymerization reaction at 65°C, control the temperature at 65°C-70°C during the reaction, and drop the remainin...
Embodiment 2
[0032] Example 2 Methyl acrylate 10g, ethyl acrylate 75g, dodecafluoroheptyl acrylate 10g, vinyl chloroacetate 5g, potassium persulfate 1g, ammonium bicarbonate 1g, deionized water 150g, sodium lauryl sulfate 2g, OP-10 4g.
[0033] First, add sodium lauryl sulfate, OP-10 and part of deionized water into the emulsification tank and stir to dissolve; then mix the acrylate monomer, fluorine-containing monomer and vulcanization point monomer, take 1 / 3 into the In the emulsification tank, emulsify at a high speed for 30 minutes under the protection of nitrogen to form an emulsion; then add the initiator potassium persulfate, pH buffer ammonium bicarbonate and deionized water into the mixing tank and stir to dissolve; the emulsified emulsion and 1 / 3 The initiator system solution is transferred to the reaction kettle in turn, and the polymerization reaction is initiated at 65°C. During the reaction, the temperature is controlled at 65°C-70°C, and the remaining monomer and initiator ...
Embodiment 3
[0035] Example 3 60g of ethyl acrylate, 30g of butyl acrylate, 5g of dodecafluoroheptyl acrylate, 5g of vinyl chloroacetate, 1g of potassium persulfate, 1g of ammonium bicarbonate, 150g of deionized water, sodium dodecylbenzenesulfonate 1 part, OP-10 2g, polyoxyethylene cetyl ether 2g.
[0036]First, add sodium lauryl sulfate, OP-10, polyoxyethylene cetyl ether and deionized water into the emulsification tank and stir to dissolve; then add acrylate monomer, low-temperature monomer, fluorine-containing monomer, vulcanization After the monomers are mixed, take 1 / 2 into the emulsification tank and emulsify at high speed for 30 minutes under the protection of nitrogen; then add the initiator potassium persulfate, pH buffer ammonium bicarbonate and deionized water into the mixing tank and stir to dissolve ;Transfer the emulsified emulsion and 1 / 2 initiator system solution to the reaction kettle in turn, initiate the polymerization reaction at 65°C, control the temperature at 70°C-7...
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