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Method for synthesizing polyesteramide reverse osmosis membrane

A technology of reverse osmosis membrane and polyester amide, which is applied in the field of synthetic polyester amide reverse osmosis membrane, which can solve the problems of poor anti-pollution ability, limited application range, frequent changing and washing, etc., and achieve the effect of energy saving and wide application range

Inactive Publication Date: 2010-06-23
王志梅 +3
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for synthesizing a polyester amide reverse osmosis membrane. After processing, a new polyester amide reverse osmosis membrane can be obtained, which can effectively solve the problem of high energy consumption and anti-pollution ability of the reverse osmosis membrane in the prior art. Poor, frequent changing and washing, limited application range, etc.

Method used

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Embodiment Construction

[0019] The present invention relates to a kind of method of synthesizing polyester amide reverse osmosis membrane, it is characterized in that, comprises the steps:

[0020] 1) Take m-phenylenediamine, glucosamine hydrochloride, isopropanol, and deionized water in a certain proportion, and mix them evenly to form an aqueous phase;

[0021] 2) taking trimesoyl chloride and n-hexane in a certain proportion, dissolving the trimesoyl chloride in n-hexane to form an oil phase;

[0022] 3) adding a certain amount of nanoparticles and surface modifiers to the oil phase;

[0023] 4) Take the polysulfone base membrane as a carrier bracket, and immerse the upper surface of the polysulfone base membrane in water for 15 minutes;

[0024] 5) Take out the polysulfone base membrane in the water phase, and discharge the excess aqueous solution;

[0025] 6) Immerse the polysulfone-based membrane in the oil phase to react for a period of time, drain and dry in the air;

[0026] 7) Wash the p...

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Abstract

The aim of the invention is to provide a method for synthesizing polyesteramide reverse osmosis membrane, obtain a new polyesteramide reverse osmosis membrane and effectively solve the problems of the prior art that the energy consumption of the reverse osmosis membrane is large, the pollution resistance is poor, the reverse osmosis membrane is needed to change and wash frequently, the application range is limited, etc. The invention has the advantages that the method of the invention can be used to obtain the new polyesteramide reverse osmosis membrane, the fast aggregation of contaminants can be effectively prevented and the reverse osmosis membrane is not needed to change frequently, thus the application scope of the reverse osmosis membrane becomes wider.

Description

technical field [0001] The invention relates to a method for synthesizing a polyester amide reverse osmosis membrane. Background technique [0002] The rapid development of industry has brought about problems such as deteriorating water quality and increasing water consumption. Therefore, people have long been committed to the research and development of various purification treatment technologies. No matter what kind of water purification technology, there must be a filtration process, and the effect of filtration directly determines the overall effect of water purification technology. [0003] Osmosis is a common natural phenomenon. When two solutions with different concentrations are separated by a semipermeable membrane, only the solvent can pass through the membrane, but the solute cannot. The flow direction of solvent molecules is from the low-concentration side to the high-concentration side. When the molecular movement stops, the height difference or pressure differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/56
Inventor 王志梅吴慧英朱兴吉崔勇
Owner 王志梅
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