Production method of improved reverse osmosis filter membrane base cloth
A production method and reverse osmosis technology, applied in reverse osmosis, semi-permeable membrane separation, chemical instruments and methods, etc., can solve the problems of easy deformation and too simple support structure.
Active Publication Date: 2018-11-27
ZHEJIANG LVLONG NEW MATERIAL CO LTD
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Problems solved by technology
[0004] Although the support body disclosed in this patent has good mechanical strength, the structure of the support body is too simple and is prone to deformation. Therefore, it is necessary to design a production method of an improved reverse osmosis filter membrane base cloth
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[0048] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0049] The reverse osmosis filter membrane base fabric includes the base layer, and both sides of the base layer are provided with reinforcement layers. The thickness ratio of the reinforcement layer to the base layer is 1:5. The reinforcement layer is composed of the following components by weight: polysulfone 8-12 parts , 5-9 parts of polyethersulfone, 45-70 parts of dimethylformamide, 6-8 parts of ethanol, 12-20 parts of ammonia water, 2-5 parts of antibacterial agent, 3-7 parts of polyethylene glycol and porogen 2-5 parts; In the present embodiment, the porogen adopts the existing auxiliary agent that can be bought on the market; Adopt this structure, by all being provided with reinforcing layer on both sides of the bas...
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Abstract
The invention provides a production method of improved reverse osmosis filter membrane base cloth and solves the technical problems that an existing supporting body is too simple in structure and easyto deform and the like. The production method of the improved reverse osmosis filter membrane base cloth comprises the following steps: a, putting 9 parts of polysulfone, 7 parts of polyether sulfone, 55 parts of dimethylformamide, 7 parts of ethanol, 14 parts of ammonia water, 3 parts of an antibacterial agent, 4 parts of polyethylene glycol and 2 parts of a pore-foaming agent into a stirrer tobe uniformly stirred to prepare a coating liquid; b, putting a base layer into the coating liquid, insulating the base layer for 20 Min at 46 DEG C, padding the base layer and rinsing the base layer thoroughly; and c, firstly roasting the rinsed base layer for 4 Min at 26 DEG C, then roasting the base layer for 7 s at 52 DEG C, and finally, airing the base layer at a constant temperature to obtainreverse osmosis filter membrane base cloth; and d, packaging: winding a product shell fabric to a roller made from a paper material to form a whole rolled shell fabric, and packaging the whole rolledshell fabric through a packaging device. The production method provided by the invention has the advantage that the product is stable in quality.
Description
technical field [0001] The invention relates to a production method of an improved reverse osmosis filter membrane base cloth. Background technique [0002] Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution; because it is opposite to the direction of natural osmosis, it is called reverse osmosis. Membranes used to perform reverse osmosis operations are called reverse osmosis membranes. A unit consisting of a membrane, a support for fixing the membrane, a spacer, and a container for accommodating these components is called a membrane module or membrane device. [0003] After retrieval, Chinese patent literature discloses a composite membrane support and a composite membrane using it [application number: 201080019045.3; publication number: CN 102413909B]. This composite film support is characterized in that it is a laminated dry thermoplastic long-fib...
Claims
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IPC IPC(8): D06M15/63D06M15/53D06M13/402D06M13/144B01D61/02B01D67/00B01D71/68D06M101/32
CPCB01D61/025B01D67/0079B01D69/10B01D69/12B01D71/68B65B11/02B65B35/20B65B35/24B65B35/50B65B43/18B65B43/30B65B43/54B65B51/10C08L81/06C08L2203/14C08L2205/025C08L2205/03D06M13/144D06M13/402D06M15/53D06M15/63D06M16/00D06M2101/32D06N3/0006D06N3/0036D06N3/12D06N2209/1671D06N2213/02C08L71/02
Inventor 陈俊锋
Owner ZHEJIANG LVLONG NEW MATERIAL CO LTD