Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/68
Inventor 陈翠仙李昕李继定
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com