Preparation method of modified montmorillonite-containing reticulated polyurethane microbial carrier
A microbial carrier, montmorillonite technology, which is applied in the treatment of granular microbial carriers, chemical instruments and methods, biological water/sewage treatment, etc. The problem of slow film hanging speed, etc., achieves the effect of good bioaffinity, improved nitrification reaction rate, and fast film hanging speed.
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Embodiment 1
[0030] The preparation method of the reticular polyurethane microbial carrier that adds modified montmorillonite of the present embodiment may further comprise the steps:
[0031] Step 1: 10 parts of vinyl polyoxypropylene polyol vinyl polyethylene oxide polyol, 80 parts of ethylene glycol polyether polyol, H 2 5 parts of O, 1 part of silicone oil, 0.1 part of tin catalyst stannous octoate, 0.3 part of amine catalyst triethylenediamine, and 20 parts of olefin monomer styrene are added to the reaction kettle and stirred evenly; add 0.2 part of modified montmorillonite, Stir evenly, and keep warm at 40°C, as component 1; the above-mentioned parts are parts by mass;
[0032] Step 2: Add 125 parts of diphenylmethane diisocyanate (MDI) and 0.08 part of free radical polymerization initiator benzoyl peroxide (BPO) into the reactor, stir evenly, and use it as component 2; the above-mentioned parts are parts by mass ;
[0033] Step 3: Mix component 1 and component 2, stir evenly, pou...
Embodiment 2
[0036] The preparation method of the reticular polyurethane microbial carrier that adds modified montmorillonite of the present embodiment may further comprise the steps:
[0037] Step 1: 15 parts of vinyl polyethylene oxide polyol, 100 parts of ethylene glycol tetrahydrofuran polyether polyol, 10 parts of adipic acid polyester polyol, H 2 6 parts of O, 2 parts of silicone oil, 0.15 part of tin catalyst stannous octoate, 0.5 part of amine catalyst triethylenediamine, and 15 parts of olefin monomer styrene were added to the reaction kettle and stirred evenly; adding 0.5 part of modified montmorillonite, Stir evenly, and keep warm at 40°C, as component 1; the above-mentioned parts are parts by mass;
[0038] Step 2: Add 130 parts of diphenylmethane diisocyanate (MDI) and 0.06 parts of free radical polymerization initiator azobisisobutyronitrile into the reaction kettle, stir evenly, and use it as component 2; the above-mentioned parts are parts by mass;
[0039] Step 3: Mix com...
Embodiment 3
[0042] The preparation method of the reticular polyurethane microbial carrier that adds modified montmorillonite of the present embodiment may further comprise the steps:
[0043] Step 1: 5 parts of vinyl polyethylene oxide polyol, 70 parts of oxypropylene polyether polyol, 30 parts of aromatic polyester polyol, H 2 8 parts of O, 2 parts of silicone oil, 0.05 parts of tin catalyst dibutyltin dilaurate, 0.8 parts of amine catalyst triethylamine, and 5 parts of olefin monomer divinylbenzene were added to the reaction kettle and stirred evenly; Montmorillonite, stirred evenly, and kept warm to 35°C, as component 1; the above-mentioned parts are parts by mass;
[0044]Step 2: Add 120 parts of diphenylmethane diisocyanate (MDI) and 0.01 part of free radical polymerization initiator benzoyl peroxide (BPO) into the reactor, stir evenly, as component 2; the above-mentioned parts are parts by mass ;
[0045] Step 3: Mix component 1 and component 2, stir evenly, pour into a mold for f...
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