Quality Control and Detection of Polymer Gas Separation Membrane
Abstract: The ideal polymer gas separation membrane material should have high gas permeability and good gas permeability, high mechanical strength, excellent thermal and chemical stability and excellent film forming properties. Among the above requirements, the gas permeability of each component of the gas separation membrane separation gas is an important indicator for the development and research of various manufacturers.
Key words: quality control and detection of polymer gas separation membrane, polymer gas membrane separation, gas permeability, membrane separation test analyzer
text:
Gas membrane separation technology is a new type of high-efficiency separation technology. Compared with traditional separation technology, it has the characteristics of less investment, simple equipment, low energy consumption, convenient use, easy operation, safety and pollution-free. The applications of medicine, health, petrochemical, biotechnology, environmental engineering and other industries are more and more widely used, and have been highly valued by all parties. Polymer gas separation membrane materials are one of the key issues in the development of membrane separation technology. The ideal polymer gas separation membrane material should have high gas permeability and good gas permeability selectivity, high mechanical strength, excellent thermal and chemical stability, and excellent film forming processability. In the above requirements, the polymer gas separation membrane The gas permeability of each component of the separation gas is an important indicator of technical development and research by various manufacturers. Labthink will then briefly introduce the G2/110X membrane separation test analyzer for the gas permeability test of the components of the separation gas of the polymer gas separation membrane.
First, the principle of separation of polymer gas separation membrane
The gas membrane separation technology utilizes different gases in the raw material mixed gas to have different permeability to the polymer gas separation membrane material itself, and the pressure difference between the gas on both sides of the polymer gas separation membrane is used as a driving force, and the permeability on the permeate side is large. The gas-enriched material obtains a separation gas which is not easily permeable to gas enrichment on the permeate side, thereby achieving the purpose of gas separation.
Second, G2/110X membrane separation test analyzer test principle
Under the specified temperature conditions, the permeation chamber is separated by a sample of the polymer gas separation membrane, one side is a mixed gas of a certain pressure, and the other side is evacuated, so that it is formed on both sides of the sample of the polymer gas separation membrane. A certain mixed gas pressure difference, the gas will pass through the membrane to enter the low pressure side; then carried by the carrier gas flow into the separation chamber, the FID hydrogen flame ionization detector completes the determination of the gas content in the carrier gas, and then calculates the per unit time The amount of each gas passing through the sample per unit area. 
Labthink's G2/110X Membrane Separation Tester is the world's first detection instrument for the gas permeability test of various components of a polymer gas separation membrane. It uses an embedded computer system platform with excellent options and performance. Stable and reliable; using differential pressure test principle, chromatographic analysis technology; can realize qualitative and quantitative determination of permeation amount, selectivity and permeation rate of each component of single and mixed test gas; and heating and cooling bidirectional temperature control, can be carried out at any temperature within the range Separation membrane performance test meets the research needs of the analysis and improvement of the barrier properties of polymer gas separation membrane materials by scientific research institutions and institutions.
Of course, after ensuring that the polymer gas separation membrane has passed the gas permeability index of each component of the separation gas, it is necessary to control other indicators to ensure the quality of the product. For more information about related testing instruments, please call: enquiry.
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