Liquid air filter membrane is a filter material used to separate liquids and gases. Its parameters have an important impact on the filtration effect and vapor permeability performance. . The following are the main parameters of this film.
1. Pore diameter
The pore diameter determines its filtration The size of the effect is usually expressed in microns (μm). The smaller the pore size, the better the filtration effect, but the breathability is also reduced accordingly. Different application scenarios require different pore sizes. For example, the usually required pore size in masks is about 0.3 microns.
2. Thickness
Thickness of liquid air filter membrane Determines the balance between its filtration efficiency and breathability. Generally speaking, thicker masks can provide higher filtration efficiency, but will increase the breathing resistance of the mask, thus affecting the user’s comfort. Therefore, the balance between filtration efficiency and breathability needs to be considered comprehensively during design.
3. Porosity
Porosity refers to the open pore space in the film proportion. The greater the void ratio, the more vapor permeable it is, but the filtration efficiency is also reduced accordingly. The general requirement for use in masks is that the void ratio is between 30% and 50%.
4. Filtration efficiency
Filtration efficiency refers to the ability to filter out harmful substances, usually Expressed as a percentage. Different membranes have different filtration efficiencies, and different usage scenarios have different requirements for filtration efficiency. For example, in protective equipment, harmful substances such as small particles and viruses need to be filtered out, so the filtration efficiency is required to be high.
5. Material selection
The selection of materials will also affect its performance. Common materials include polyester, polypropylene, polytetrafluoroethylene, etc. Different materials have different physical and chemical properties and filtration characteristics. For different application scenarios, it is necessary to select appropriate materials to manufacture liquid air filter membranes.
In summary, the parameters of liquid air filter membrane have an important impact on the filtration effect and breathability performance. The balance between various parameters needs to be considered comprehensively during design to provide suitable filter materials for different application scenarios. Interested parties are welcome to enter the store and contact us.
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