A kind of fluorocarbon emulsion containing sulfonic acid group and preparation method thereof
A fluorocarbon emulsion and sulfonic acid-containing technology, applied in the field of fine chemicals, can solve the problems of emulsifier migration, poor compatibility, poor emulsion stability, etc., and achieve the effect of excellent stability and resource saving
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[0033] A preparation method containing sulfonic acid group fluorocarbon emulsion, comprising the following steps:
[0034] 1) Raw materials: fluorine-containing acrylate, butyl acrylate, styrene, 2-acrylamide-2-methylpropanesulfonic acid, emulsifier, initiator and water.
[0035] Among them, the molar ratio of the polymerized monomer fluorine-containing acrylate, butyl acrylate, styrene, and 2-acrylamide-2-methylpropanesulfonic acid is 0.2-1.0:1.0:1.0:0.02-0.2; 0.5% to 5% of the total mass of the polymerized monomer; the initiator accounts for 0.1% to 2% of the total mass of the polymerized monomer; water accounts for 200% to 300% of the total mass of the polymerized monomer.
[0036] 2) Add all kinds of above-mentioned raw materials (among them: 70% of water is added, and the remaining 30% is used for later use), put into a container and shear at high speed for 30 minutes to obtain a pre-emulsion.
[0037] 3) Add the remaining 30% water and 5% pre-emulsion in a dry three-nec...
Embodiment 1
[0041] A preparation method of fluorocarbon emulsion containing sulfonic acid group, its raw material components and consumption are as follows:
[0042] Fluorine-containing acrylate, butyl acrylate, styrene, 2-acrylamide-2-methylpropanesulfonic acid, emulsifier (sulfonation rate: 80%, -R f For: -C 4 h 3 f 6 O), ammonium persulfate and water; wherein: the molar ratio of fluorine-containing acrylate, butyl acrylate, styrene, and 2-acrylamide-2-methylpropanesulfonic acid is 0.8: 1.0: 1.0: 0.04; emulsifier ( Sulfonation rate: 80%, -R f For: -C 4 h 3 f 6 O) accounts for 1.9% of the total mass of the polymerized monomers; ammonium persulfate accounts for 0.7% of the total mass of the polymerized monomers; water accounts for 250% of the total mass of the polymerized monomers.
[0043] The preparation technology of this a kind of fluorocarbon emulsion containing sulfonic acid group:
[0044] Add all kinds of above-mentioned raw materials (70% of which is added with water, and...
Embodiment 2
[0046] A preparation method of fluorocarbon emulsion containing sulfonic acid group, its raw material components and consumption are as follows:
[0047] Fluorine-containing acrylate, butyl acrylate, styrene, 2-acrylamide-2-methylpropanesulfonic acid, emulsifier (sulfonation rate: 24%, -R f For: -C 5 h 3 f 8 O), ammonium persulfate and water; wherein: the molar ratio of fluorine-containing acrylate, butyl acrylate, styrene, and 2-acrylamide-2-methylpropanesulfonic acid is 0.4: 1.0: 1.0: 0.02; emulsifier ( Sulfonation rate: 24%, -R f For: -C 5 h 3 f 8 O) accounts for 2.3% of the total mass of the polymerized monomers; ammonium persulfate accounts for 1.8% of the total mass of the polymerized monomers; water accounts for 225% of the total mass of the polymerized monomers.
[0048] The preparation technology of this a kind of fluorocarbon emulsion containing sulfonic acid group:
[0049] Add all kinds of above-mentioned raw materials (70% of which is added with water, and t...
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