It refers to special fiber that has the function of separating gas, liquid and other substances, or can be used as a bioreactor. It is generally divided into five categories according to the size of membrane micropores and separation principle: microfiltration membrane, ultrafiltration membrane, dialysis membrane, reverse osmosis membrane and evaporative osmosis membrane. It can separate uhrafine particle, suspended solids, macromolecule and polymer of different molecular weight grades, fungi, plasma, serum, mixed gases, ions Enzymes, urea, uric acid, creatinine, and proteins. The preparation method mainly uses hollow spinneret and dry wet spinning to form fibers, and some can use C-shaped spinneret and melt spinning methods. In addition to being used as water treatment, brackish water and seawater desalination devices, solvent or heavy metal recovery devices, artificial organs, mixed gas separation devices and evaporative osmosis devices, they can also be made into various bioreactor by using their self-supporting characteristics and separation functions. They inject solidified enzymes, etc. into hollow fiber, and then pass liquid raw materials into hollow fiber. The chemical reaction is carried out by biological enzymes, and the generated products can be made into pure products through the wall. Compared with the previous non hollow fiber bioreactor, it has the characteristics of high yield, easy operation, easy automation, no need to change mechanical materials and anti microbial mixing. In addition, it can also be applied to the proliferation of cancer antibodies in the treatment of cancer.
Organic polymer materials -> Fiber -> Specialty fibers