Ternary fluorine-containing resin as well as preparation method and application thereof
A technology of fluorine-containing resin and trifluoropropylene, which is applied in chemical instruments and methods, textiles and papermaking, non-woven fabrics, etc., can solve the problems of hydrophilic modification instability, etc., to improve water flux, reduce pollution, and The effect of exhaust emissions
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Embodiment 1
[0034] Embodiment 1, preparation of ternary fluororesin
[0035] Vacuumize the 1L reactor to remove water and air, pass carbon dioxide and then vacuumize, repeat three times; introduce 43.0g of pre-cooled vinyl acetate into the vacuumized reactor, and then press 48.0g of trifluoropropene into the vacuumized reactor monomer, heating the reactor to 35°C; then carbon dioxide was pressed into the reactor with a high-pressure plunger pump, and after the pressure reached 36MPa, 3.0g of 4wt% (CF 3 CF 2 (CF 2 OCF (CF 3 )) 2 COO) 2 The 1,1,2-trifluorotrichloroethane solution was added to the reactor to initiate polymerization; after 8 hours of polymerization, the valve was slowly opened to recover carbon dioxide and remaining monomers, and fresh carbon dioxide was repeatedly filled to extract the copolymer, and finally collected As a product, 59.3 g of a binary copolymer of vinyl acetate and trifluoropropylene was obtained.
[0036] Mix 10.0g of vinyl acetate and trifluoropropyle...
Embodiment 2
[0040] Embodiment 2, the preparation of ternary fluororesin
[0041] Vacuumize the 1L reactor to remove water and air, pass carbon dioxide and then vacuumize, repeat three times; introduce 43.0g of pre-cooled vinyl acetate into the vacuumized reactor, and then press 48.0g of trifluoropropene into the vacuumized reactor monomer, heating the reactor to 35°C; then carbon dioxide was pressed into the reactor with a high pressure plunger pump, and after the pressure reached 48MPa, 3.0g concentration of 4wt% (CF 3 CF 2 (CF 2 OCF (CF 3 )) 2 COO) 2 The 1,1,2-trifluorotrichloroethane solution was added to the reactor to initiate polymerization; after 8 hours of polymerization, the valve was slowly opened to recover carbon dioxide and remaining monomers, and fresh carbon dioxide was repeatedly filled to extract the copolymer, and finally collected As a product, 59.6 g of vinyl acetate and trifluoropropylene binary copolymer were obtained.
[0042] Mix 10.0g of vinyl acetate and tr...
Embodiment 3
[0046] Embodiment 3, the preparation of ternary fluororesin
[0047] Vacuumize the 1L reactor to remove water and air, pass carbon dioxide and then vacuumize, repeat three times; introduce 43.0g of pre-cooled vinyl acetate into the vacuumized reactor, and then press 48.0g of trifluoropropene into the vacuumized reactor monomer, heating the reactor to 35°C; then carbon dioxide was pressed into the reactor with a high-pressure plunger pump, and after the pressure reached 65MPa, 2.5g of 4wt% (CF 3 CF 2 (CF 2 OCF (CF 3 )) 2 COO) 2 The 1,1,2-trifluorotrichloroethane solution was added to the reactor to initiate polymerization; after 7 hours of polymerization, the valve was slowly opened to recover carbon dioxide and remaining monomers, and fresh carbon dioxide was repeatedly filled to extract the copolymer, and finally collected As a product, 59.9 g of a binary copolymer of vinyl acetate and trifluoropropylene was obtained.
[0048] Mix 10.0g of vinyl acetate and trifluoropro...
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