Now, how to choose a reasonable filter membrane for your application, I believe this is a question that everyone is concerned about. Here, I will take you to start with the filter membrane material and understand PTFE ultrafiltration membrane.
In 1896, Martin produced the first artificial ultrafiltration membrane. In the 1960s, the concept of molecular weight was proposed, which was the beginning of modern ultrafiltration. The advantages of ultrafiltration technology are easy operation, low cost, and There is no need to add any chemical reagents, especially the experimental conditions of ultrafiltration technology are mild, there is no phase change compared with evaporation and freeze-drying, and it does not cause changes in temperature and pH, thus preventing denaturation, inactivation and spontaneous degradation of biological macromolecules. dissolve.
In the preparation technology of biological macromolecules, ultrafiltration is mainly used for desalination, dehydration and concentration of biological macromolecules.
The ultrafiltration method also has certain limitations. It cannot directly obtain dry powder preparations.
For protein solutions, generally only a concentration of 10 to 50% can be obtained.
The principle of ptfe ultrafiltration membrane is not complicated.
During the ultrafiltration process, due to the continuous accumulation of trapped impurities on the membrane surface, concentration polarization will occur. When the solute concentration on the membrane surface reaches a certain limit, a gel layer is formed, which reduces the water permeability of the membrane. dropped sharply, which limited the application of ultrafiltration to a certain extent.
To this end, it is necessary to conduct research through experiments to determine the optimal process and operating conditions, minimize the impact of concentration polarization, and make ultrafiltration a reliable reverse osmosis pretreatment method.
It is a ptfe ultrafiltration membrane manufacturer specializing in R&D, production and sales.
The materials of the products produced by our company are all imported raw materials, with high uniformity, stable performance and good breathability.
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