Film making liquid for polyvinyl chloride hydrophilicity alloy separating film and preparing method thereof
A polyvinyl chloride, hydrophilic technology, applied in semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc., can solve the problems of industrial production difficulties, low equipment manufacturing costs, decreased filtration capacity, etc., and achieve pollution cleaning and recovery. Good ability, extended cleaning cycle and life, the effect of anhydride functionality improvement
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Embodiment 1
[0022] The membrane-making solution of the polyvinyl chloride hydrophilic alloy separation membrane of the present invention comprises the following components in parts by weight:
[0023] PVC 12
[0024] Polyvinyl butyral 2
[0025] Maleic anhydride 1
[0026] Organotin 0.5
[0027] Dimethylacetamide 75
[0028] Polyethylene glycol 9.5
[0029] The preparation method of the film-making solution of the polyvinyl chloride hydrophilic alloy separation membrane of the present invention is realized by the following scheme: 12 parts by weight of polyvinyl chloride resin, 2 parts by weight of polyvinyl butyral, 1 part by weight of cis Butenedioic anhydride, 0.5 parts by weight of organotin and 75 parts by weight of dimethylacetamide are poured into the reaction kettle and fully mixed and stirred. After basically dissolving, 9.5 parts by weight of polyethylene glycol are added. After stirring for 10 hours, vacuum defoaming was carried out, and the membrane-forming solution of th...
Embodiment 2
[0032] The membrane-making solution of the polyvinyl chloride hydrophilic alloy separation membrane of the present invention comprises the following components in parts by weight:
[0033] PVC 5
[0034] Polyvinyl butyral 10
[0035] Maleic anhydride 2
[0036] Organotin 1
[0037] Dimethylformamide 79
[0038] Li salt 3
[0039] The preparation method of the film-making liquid of the polyvinyl chloride hydrophilic alloy separation membrane of the present invention is realized by the following scheme: 5 parts by weight of polyvinyl chloride resin, 10 parts by weight of polyvinyl butyral, 2 parts by weight of cis Butenedioic anhydride, 1 weight part of organotin and 79 weight parts of dimethylformamide were poured into the reaction kettle together, stirred at a constant temperature of 80°C, and after basically dissolving, 3 weight parts of Li salt were added, and the After stirring at 80° C. for 10 hours, vacuum defoaming was carried out, and the membrane-forming solution ...
Embodiment 3
[0042] The membrane-making solution of the polyvinyl chloride hydrophilic alloy separation membrane of the present invention comprises the following components in parts by weight:
[0043] PVC 10
[0044] Polyvinyl butyral 2
[0045] Maleic anhydride 2
[0046] Organotin 0.3
[0047] Dimethylacetamide 30.85
[0048] Dimethylformamide 30.85
[0049] Polyethylene glycol 24
[0050] The preparation method of the film-making liquid of the polyvinyl chloride hydrophilic alloy separation membrane of the present invention is realized by the following scheme: 10 parts by weight of polyvinyl chloride resin, 2 parts by weight of polyvinyl butyral, 2 parts by weight of cis Butenedioic anhydride, 0.3 parts by weight of organotin, 30.85 parts by weight of dimethylformamide, and 30.85 parts by weight of dimethylacetamide were poured into the reaction kettle together, stirred at a constant temperature of 50°C, and after basically dissolving, the Add 24 parts by weight of polyethylene g...
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