Ultrafiltration membrane of hollow fiber made form polyarylether sulfone or polyarylether ketone of containing phenolphthalein lateral group, and preparation method

A technology of polyaryl ether sulfone and polyaryl ether ketone, which is applied in the field of hollow fiber ultrafiltration membrane separation and membrane separation, can solve the problems of high temperature sterilization of membrane and limit the application of membrane, and achieve good anti-oxidation effect.

Inactive Publication Date: 2005-11-16
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

Membrane separation technology is used in the concentration, separation, purification and removal of pyrogens in pharmaceutical products. It is necessary to sterilize the membrane at high temperature, generally steam sterilization above 120°C, which limits the application of the membrane.

Method used

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  • Ultrafiltration membrane of hollow fiber made form polyarylether sulfone or polyarylether ketone of containing phenolphthalein lateral group, and preparation method
  • Ultrafiltration membrane of hollow fiber made form polyarylether sulfone or polyarylether ketone of containing phenolphthalein lateral group, and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0079] Example 1: Take 70g of the membrane material polyarylethersulfone (P), 100g of the solvent DMAc (S1) and 230g of NMP (S2) to form a mixed solvent, add 25g of propionic acid (A), and prepare 425g of membrane solution. Stir at 90°C for 15 hours to prepare a uniform film-forming solution. After filtering and defoaming, the hollow fiber membrane is prepared according to the preparation method "6" of the present invention. The pressure of the spinning kettle is 0.1MPa, the temperature of the spinning stock solution (kettle temperature) is 30°C, the drawing speed is 25m / min, the core liquid is water at 60°C, the air gap is 0, the first gel bath is water, and the temperature is 60°C. The second gel bath was water at 60°C.

[0080] After soaking in water at 25°C for 24 hours, the performance of the membrane was tested. Under the conditions of operating pressure of 0.1MPa and temperature of 25°C, the pure water flux of the membrane is 735L / m 2 .h, the rejection rate of the me...

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Abstract

A hollow-fibre ultrafiltration membrane able to resist high temp, solvent, acid, alkali and oxidizing is prepared from the polyarylether sulfone (PES-C) or polyarylether ketone (PEK-C) containing the phenolphthalein as side radial. Its shaping process and technological conditions are also disclosed.

Description

Technical field: [0001] The polyarylether sulfone or polyarylether ketone hollow fiber ultrafiltration membrane containing phenolphthalein side groups and a preparation method thereof belong to the technical field of membrane separation, in particular to the technical field of hollow fiber ultrafiltration membrane separation. Background technique: [0002] Membrane separation is a new separation technology in the early 1960s. It has developed rapidly due to its energy saving and simple operation, and has caused fundamental changes in some traditional industries. For example, the concentration, purification and separation of pharmaceutical products and pyrogens (also known as bacterial endotoxins, have affinity for polar and non-polar solutions, have heat resistance, and the decomposition speed is above 200 ° C, it will cause In the removal of fever, headache, nausea, vomiting, coma, etc., death in severe cases), traditional methods such as distillation will cause a large amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/68
Inventor 陈翠仙李昕李继定
Owner TSINGHUA UNIV
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