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Polyether sulfone/poly butylene carbonate hollow fiber blend membrane and preparation method thereof

A technology of polybutylene carbonate and polyethersulfone, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of polyethersulfone non-biodegradation, environmental pollution, etc., and achieve good biodegradation Sex, the effect of improving hydrophilicity

Active Publication Date: 2016-03-02
SUZHOU JUN KANG MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyethersulfone is not biodegradable, and its waste will pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The ingredients and mass percentages are as follows: polyethersulfone 10%, PBC 5%, dimethyl sulfoxide 75%, polyvinylpyrrolidone (PVP-K30) 10%. Add the above raw materials into the container, heat to 70°C, stir and dissolve to make a solution, filter the solution, and vacuum defoam for 5 hours. Fill the spinning solution into a barrel with heating and heat preservation function, and keep the temperature at 70°C. The spinning solution is extruded from the spinneret used for spinning hollow fiber membranes, and solidified and formed by wet spinning process. The parameters are: air layer height 0 cm, coagulation bath water, temperature 20°C. Single-stage stretching, the water bath is used as the stretching medium, the temperature of the water bath is 50°C, and the stretching ratio is 1.5 times. Then the solvent and part of the porogen were removed in water at 75°C, dried under nitrogen protection, and sterilized to obtain the polyethersulfone and polybutylene carbonate hol...

Embodiment 2

[0035] The ingredients and mass percentages are as follows: polyethersulfone 11%, PBC 4%, polyethylene glycol (molecular weight 10000) 10%, dimethylacetamide 75%. Put the above-mentioned raw materials into a container, heat to 75°C, stir and dissolve to form a solution, filter the solution, and vacuum defoam for 5 hours. The spinning solution is loaded into a barrel with heating and heat preservation function, and the temperature is kept at 75°C. Dimethylacetamide and water are prepared into a spinning coagulation bath, and the mass percent concentration of dimethylacetamide is 2%. It is extruded with a spinneret for spinning hollow fiber membranes, and solidified by a dry-wet spinning process. The parameters are: the height of the air layer is 5cm, and the coagulation bath is dimethyl acetamide with a mass percentage concentration of 2%. Acetamide aqueous solution, temperature 15°C. The stretching is carried out in two stages, the water bath is used as the stretching medium...

Embodiment 3

[0037] The ingredients and mass percentages are as follows: polyethersulfone 12%, PBC 3%, polyvinylpyrrolidone (PVP-K90) 8%, N-methyl-2-pyrrolidone 77%. Add the above-mentioned raw materials into a container, heat to 65°C, stir and dissolve to form a solution, filter the solution, and vacuum defoam for 5 hours. The spinning solution is loaded into a barrel with a heating and heat preservation function, and the temperature is kept at 65°C. N-methyl-2-pyrrolidone and water are prepared into a spinning coagulation bath, and the mass percent concentration of N-methyl-2-pyrrolidone is 3%. It is extruded with a spinneret spinning a hollow fiber membrane, and solidified by a dry-wet spinning process. The parameters are: the height of the air layer is 10 cm, and the coagulation bath is methyl-2-pyrrolidone with a mass percentage concentration of 3%. -2-Pyrrolidone aqueous solution, temperature 10°C. The stretching is carried out in two stages, the water bath is used as the stretchin...

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Abstract

The invention discloses a polyether sulfone / poly butylene carbonate (PBC) hollow fiber blend membrane and a preparation method thereof. The polyether sulfone / poly butylene carbonate hollow fiber blend membrane comprises 5 to 15wt% of polyether sulfone, 1 to 5wt% of poly butylene carbonate, 5 to 10wt% of a pore forming agent, and 60 to 84wt% of an organic solvent. According to the preparation method, polyether sulfone, poly butylene carbonate, the pore forming agent, and the organic solvent are mixed so as to obtain a spinning solution; the spinning solution is subjected to extrusion using a spinning nozzle used for spinning hollow fiber membranes; a hollow fiber membrane is obtained via wet spinning or dry-wet spinning; and the polyether sulfone / poly butylene carbonate hollow fiber blend membrane is obtained via stretching, water washing, and drying. The polyether sulfone / poly butylene carbonate hollow fiber blend membrane is capable of resisting steam sterilization, and possesses high hydrophilic performance; waste can be treated easily; and the preparation method is suitable of industrialized production.

Description

technical field [0001] The invention relates to a hollow fiber membrane and a preparation method thereof, in particular to a polyethersulfone / polybutylene carbonate hollow fiber blend membrane and a preparation method thereof. Background technique [0002] Hemodialysis has been developed for more than 90 years. Hemodialysis is to extract blood out of the body, remove metabolic waste and impurities in the blood through the dialysis membrane in the hemodialysis machine, and then transport the purified blood back to the body. The dialysis membrane is composed of countless roots Composed of hollow fibers, when blood flows through these hollow fibers, the electrolyte solution with a concentration similar to that located on the outer layer of the hollow fibers performs material exchange through diffusion / convection, thereby removing metabolic waste in the blood, maintaining electrolyte and acid-base balance, and removing Excess moisture. [0003] With the development of hemodialy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/68B01D67/00B01D69/08
Inventor 黄臣勇沈新元邢雪奎高庆丰张婷婷王志全邢瀚王洁甘莹
Owner SUZHOU JUN KANG MEDICAL TECH
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