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Hollow fibrous membranes of modified poly(ether sulfone) and their production

A polyethersulfone and fiber membrane technology, which is used in the synthesis and preparation of functional polymer materials, can solve problems such as the lack of improvement in anticoagulant properties, and achieve excellent biocompatibility, high selective separation, and simple equipment. Effect

Active Publication Date: 2005-10-12
成都欧赛医疗器械有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The anticoagulant performance of the material has not been improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] 1. Add 18 grams of polyethersulfone, 8 grams of polyvinylpyrrolidone, 2 grams of propylene glycol, and 66.9 grams of N-methylpyrrolidone into a container with a stirrer and a thermometer, and stir and dissolve at a temperature of 75-95 ° C for 15 hours; In another container, 0.1 part of biologically active macromolecular DNA was dissolved in 5 parts of water, and mixed uniformly at room temperature. Then slowly add the DNA aqueous solution into the polyethersulfone polymer solution in batches, stir and mix evenly at room temperature, and prepare a uniform polymer mixed solution. The solution is filtered, defoamed and "aged" to obtain a polymer spinning stock solution. Two concentric hollow fiber spinnerets are used to filter the spinning raw hydraulic pressure and extrude through the spinneret with a metering pump. Pure water is the core liquid; the extrusion speed of the spinning solution is 4ml / min; Through a distance of 15 cm, solidify and form in a water bath at a ...

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Abstract

A hollow modified polyethersulfone fibre membrane is prepared through proportionally mixing polyethersulfone, hydrophilic high-molecular material, pore-forming agent and solvent, stirring at 75-95 deg.C for 2-24 hr, dissolving the bioactive macro-molecular material in water, slowly adding it to said solution of polyethersulfone, stirring, fitlering, defoaming, curing, dry-wet spinning, shaping in water bath at 20-42 deg.C, drafting, winding and post-treating.

Description

1. Technical field [0001] The invention relates to a modified polyethersulfone hollow fiber membrane and a manufacturing method thereof. It belongs to the field of synthesis and preparation of functional polymer materials. 2. Background technology [0002] Polyethersulfone (PES) special engineering plastic is an excellent special polymer material for engineering because of its high glass transition temperature and good physical and chemical stability. As a membrane material for blood purification, the inventors applied for Chinese invention patents in 1997 and 1998 respectively, ZL97107831.9 "Polyethersulfone hollow fiber membrane and its manufacturing method and application", and ZL98111939.5 "Small area hollow fiber Membrane plasma separation filter". Abroad, Japan Nikkiso company G. Setin et al., Artifi: Organs, 17 (5): 339-345, 1993, reported in 1993 the clinical research of hemodialyzer made of polyester alloy (containing polyether sulfone). [0003] Chen Xueying of ...

Claims

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Application Information

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IPC IPC(8): B01D71/68
Inventor 赵长生刘承杰廖世龙
Owner 成都欧赛医疗器械有限公司
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