Acrylic rubber bale having excellent storage stability and water resistance
A technology of acrylic rubber and rubber bag, which is applied in the field of rubber cross-linked products, can solve the problems of acrylic rubber that are not recorded, and achieve the effect of excellent water resistance
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Embodiment 1
[0349] In a mixing vessel with a homogenizer, add 46 parts of pure water, 48.5 parts of ethyl acrylate, 29 parts of n-butyl acrylate, 21 parts of methoxyethyl acrylate, 1.5 parts of vinyl chloroacetate, and 0.709 parts of sodium lauryl sulfate and 1.82 parts of polyoxyethylene lauryl ether (molecular weight: 1500) as emulsifiers were stirred to obtain a monomer emulsion.
[0350] Next, 170 parts of pure water and 3 parts of the above-mentioned monomer emulsion obtained by emulsion polymerization were put into a polymerization reaction tank equipped with a thermometer and a stirring device, and cooled to 12° C. under nitrogen flow. Then, in the polymerization reaction tank, the remainder of the monomer emulsion, 0.00033 parts of ferrous sulfate, 0.264 parts of sodium ascorbate, and 0.22 parts of potassium persulfate were continuously added dropwise over 3 hours. Then, the reaction was continued while the temperature in the polymerization reaction tank was kept at 23° C., and af...
Embodiment 2
[0386]Change the monomer components to 98.5 parts of ethyl acrylate and 1.5 parts of vinyl chloroacetate, change the temperature of the first dehydrator barrel of the screw extruder to 100°C, and the temperature of the second dehydrator barrel to 120°C ℃, only the 1st dehydrator cylinder is drained, and the moisture content of the water-containing aggregate after the 1st dehydrator cylinder drainage is changed to 30%, except that, proceed in the same manner as in Example 1 to obtain an acrylic rubber bag ( B), Evaluation of each characteristic. These results are shown in Table 2.
Embodiment 3
[0388] Change the monomer components to 43 parts of ethyl acrylate, 25 parts of n-butyl acrylate, 26 parts of methoxyethyl acrylate, 2 parts of acrylonitrile and 4 parts of allyl glycidyl ether, in addition to , carried out in the same manner as in Example 2 to obtain an acrylic rubber bag (C), and evaluate each characteristic (the compounding agent was replaced with "combination 2"). These results are shown in Table 2.
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