Mfg. process and tech. of fluorine carbon emulsion for paint
A technology of fluorocarbon emulsion and manufacturing method, applied in the direction of coating, etc., can solve the problems of human body harmfulness and environmental pollution, and achieve the effects of good initiation, high gloss and excellent storage stability
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Example Embodiment
[0022] Example 1
[0023] Water 240
[0024] Chlorotrifluoroethylene 250
[0025] Vinyl propionate 180
[0026] Undecylenic acid 3.5
[0027] Ethyl vinyl ether 60
[0028] Sodium dodecyl sulfonate 4
[0029] Polyoxyethylene alkyl ether 8.5
[0030] Sodium dihydrogen phosphate 3
[0031] Ammonium persulfate 4
[0032] As a result of the dispersion stability of the above-mentioned aqueous dispersion, the mechanical stability is good, and the high-temperature stability is not abnormal. The fluorine content was 10.2%, the solid content was 44.3%, and the yield was 88.6%.
Example Embodiment
[0033] Example 2
[0034] First, weigh the emulsifier and various monomers and add them to the dispersion tank. Fill the 5-liter reactor with nitrogen and evacuate, repeating two or three times. Then add the prepared solution into the reaction kettle using negative pressure. Under stirring, add chlorotrifluoroethylene, raise the temperature to 40-100 degrees, react for 5-40 hours, and the pressure is 0.6-2.6MPa.
[0035] Water 1300
[0036] Chlorotrifluoroethylene 1200
[0037] Vinyl acetate 760
[0038] Acrylic 14
[0039] Ethyl vinyl ether 220
[0040] Sodium perfluorooctanoate sulfonate 20
[0041] Polyoxyethylene alkyl ether 48
[0042] Sodium bicarbonate 35
[0043] 2,2,-Azobis[2-(2-imidazoline-2-substituted)propane]dihydrochloride 22
[0044] As a result of the dispersion stability of the above-mentioned aqueous dispersion, the mechanical stability is good, the storage stability is not abnormal, and the chemical stability is not abnormal. The fluorine content was 12.3%, the ...
Example Embodiment
[0045]Example 3 First, weigh the emulsifier and various monomers and add them to the dispersion tank. Fill the 2-liter reactor with nitrogen and evacuate, repeating two or three times. Then add the prepared solution into the reaction kettle using negative pressure. Under stirring, add chlorotrifluoroethylene, raise the temperature to 40-100 degrees, react for 5-40 hours, and the pressure is 0.6-2.6MPa.
[0046] Water 480
[0047] Chlorotrifluoroethylene 445
[0048] Butenyl vinyl ether 312
[0049] Acrylic 6
[0050] Ethyl vinyl ether 120
[0051] Sodium perfluorooctanoate sulfonate 7.8
[0052] Sodium dodecyl sulfonate 15
[0053] Sodium bicarbonate 6
[0054] 2,2,-Azobis[2-(2-imidazoline-2-substituted)propane]dihydrochloride 8
[0055] As a result of the dispersion stability of the above-mentioned aqueous dispersion, the mechanical stability is good, the storage stability is not abnormal, and the chemical stability is not abnormal. The fluorine content is 11.6%, the solid conten...
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