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Water treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof
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A fiber membrane and water treatment technology, which is applied in the direction of epoxy resin glue, osmosis/dialysis water/sewage treatment, general water supply saving, etc., can solve the problems of discoloration, improve bonding performance, shorten gel time, and improve work efficiency efficiency effect
Active Publication Date: 2020-07-24
康达新材料(集团)股份有限公司
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Embodiment 1
[0045] Mix and stir 91.5 parts by weight of E51, 5 parts by weight of carbon 12-14 alkylglycidyl ether (AGE), 2 parts by weight of EP4000, 0.9 parts by weight of KH-560, and 0.6 parts by weight of defoamer to obtain A Component;
[0046] 14.15 parts by weight of modified ring amine JH-5933, 34.4 parts by weight of polyetheramine D230, 30 parts by weight of polyetheramine T403, 5.95 parts by weight of polyamide 651, 15 parts by weight of salicylic acid, 0.5 parts by weight BYK-337, stirred and mixed at 75°C for 5h, cooled to room temperature to obtain component B;
[0047] Mix and stir components A and B at a weight ratio of 100:40 to obtain a membrane module potting compound.
Embodiment 2
[0049] 67.5 parts by weight of E51, 25 parts by weight of N170, 3 parts by weight of neopentyl glycoldiglycidyl ether, 3 parts by weight of 1,2-cyclohexanediol diglycidyl ether, 2 parts by weight of carboxyl-terminated butyl Nitrile rubber synthetic epoxy resin, 0.9 parts by weight of KH-560, and 0.6 parts by weight of defoamer are mixed and stirred evenly to obtain component A;
[0050] 17.15 parts by weight of modified ring amine JH-5933, 34.4 parts by weight of polyetheramine D230, 34 parts by weight of polyetheramine T403, 5.75 parts by weight of polyamide 651, 8 parts by weight of salicylic acid, 0.7 parts by weight BYK-306, stirred and mixed at 75°C for 5h, cooled to room temperature to obtain component B;
[0051] Mix and stir components A and B at a weight ratio of 100:45 to obtain a membrane module potting compound.
Embodiment 3
[0053] With the E44 of 70.5 parts by weight, the N170 of 15 parts by weight, the neopentyl glycoldiglycidyl ether of 5 parts by weight, the hexanediol diglycidyl ether of 6 parts by weight, the polyurethane modified epoxy resin of 2 parts by weight, 0.9 KH-560 in parts by weight and 0.6 parts by weight of defoamer are mixed and stirred evenly to obtain component A;
[0054] 14.15 parts by weight of modified cyclic amine JH-5933, 31.4 parts by weight of polyetheramine D230, 28 parts by weight of polyetheramine T403, 5.95 parts by weight of polyamide 651, 20 parts by weight of salicylic acid, 0.5 parts by weight BYK-341, stirred and mixed at 75°C for 5h, cooled to room temperature to obtain component B;
[0055] Mix and stir components A and B at a weight ratio of 100:35 to obtain a membrane module potting compound.
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Abstract
The invention discloses a water treatmentepoxy pouring sealant for preventing a hollow fiber membrane from discoloring. The water treatmentepoxy pouring sealant comprises a component A and a component B. The component A comprises the following components in parts by weight: 50-98 parts of epoxy resin; 1-5 parts of a toughening agent; 5-20 parts of an active diluent; 0.5-2 parts of a coupling agent; 0.1-1 part of a defoaming agent; the component B is prepared from the following components in parts by weight: 99-100 parts of curing agent forming matter; and 0.1-1.5 parts of leveling agent, wherein the curing agent forming matter is prepared by adding organic acid into an amine curing agent and carrying out modification reaction under a heating condition, and the mass ratio of the amine curing agent to the organic acid is 95: 5-60: 40. The problem of filament burning and color changing of the hollow fiber membrane is solved by adding the modified curing agent and the gelation time is shortened, the working efficiency of end sealing of the membrane module is greatly improved, and the risk of module shelling is better guaranteed due to improvement of the bonding performance.
Description
technical field [0001] The invention relates to the technical fields of chemical industry and environmental protection, in particular to a water treatment epoxy potting glue for preventing discoloration of hollow fiber membranes and a preparation method thereof. Background technique [0002] In the case of shortage of water resources, serious water pollution, and yearly increase in sewagedischarge, the availability of water resources is becoming more and more severe. Therefore, water treatment has become the main way to solve this problem, and reuse has become the solution to the serious shortage of water resources. important means. [0003] Water treatment refers to sewage treatment, including many treatment methods such as membrane water treatment, sludge treatment, seawaterdesalination, sponge city, etc. Compared with traditional water treatment processes, membrane water treatment is simple and has low energy consumption, mainly using physical technology (concentration...
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