Acrylic acid ester promoter for polyvinyl chloride use, preparation method and application thereof
A technology of acrylate and polyvinyl chloride, which is applied in the field of acrylate additives for polyvinyl chloride, its preparation and application, can solve the problems of product performance impact, product quality control, product appearance impact, etc., and achieve melt fluidity Good, fast plasticizing effect
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[0029] Example 1
[0030] An acrylate additive for polyvinyl chloride with an average molecular weight of 9,000,000, obtained by emulsion polymerization of the following parts by mass: 20 parts by mass of ST, 50 parts by mass of MMA and 30 parts by mass of BUA.
[0031] The preparation method is:
[0032] Add an appropriate amount of demineralized water, 2 parts by mass of sodium lauryl sulfate, 20 parts by mass of a monomer mixture to the reactor, seal the manhole, turn on the stirring, pass nitrogen protection, pass steam and heat up to 40°C, add 0.5 Part by mass of ammonium sulfate or potassium persulfate was used as an initiator, and 90 parts by mass of the second-stage monomer mixture was added dropwise at 65° C., reacted for 5 hours, cooled, and spray-dried to obtain a finished product.
Example Embodiment
[0033] Example 2
[0034] An acrylate additive for polyvinyl chloride, with an average molecular weight of 10,000,000, is obtained by emulsion polymerization of the following parts by mass: 30 parts by mass of ST, 50 parts by mass of MMA and 20 parts by mass of BUA.
[0035] The preparation method is:
[0036] Add appropriate amount of demineralized water, 4 parts by mass of sodium stearate, 40 parts by mass of monomer mixture to the reaction kettle, seal the manhole, turn on the stirring, pass nitrogen protection, heat up to 50°C with steam, add 0.6 parts by mass Ammonium sulfate or potassium persulfate was used as an initiator, and 80 parts by mass of the second-stage monomer mixture was added dropwise at 70° C., reacted for 4 hours, cooled, and spray-dried to obtain a finished product.
Example Embodiment
[0037] Example 3
[0038] An acrylate additive for polyvinyl chloride with an average molecular weight of 11,000,000, obtained by emulsion polymerization of the following parts by mass: 10 parts by mass ST, 60 parts by mass MMA, 10 parts by mass BUA, and 10 parts by mass EA and 10 parts by mass of AN.
[0039] The preparation method is:
[0040] Add an appropriate amount of demineralized water, 3 parts by mass of sodium dodecylbenzene sulfonate, 60 parts by mass of a monomer mixture to the reaction kettle, seal the manhole, turn on the stirring, protect by nitrogen, and heat up to 60°C with steam. Adding 0.4 parts by mass of ammonium sulfate or potassium persulfate as an initiator, adding 70 parts by mass of the second-stage monomer mixture dropwise at 45° C., reacting for 4.5 hours, cooling, and spray drying to obtain a finished product.
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