Relevant data shows that filter bags are widely used in waste incineration, coal power, steel, and cement industries, and the material that plays an important role here is the clean room FFU filter membrane.
China’s clean room grade standards are the same as the international standard ISO14644. They are divided into clean rooms (areas) and related controlled environments based on the highest indicator of suspended particle concentration, and only consider particle size limits. The value (lower limit) is a particle group with a cumulative distribution in the range of 0.1um ~ 5.0um.
According to particle diameter, it can be divided into conventional particles (0.1um ~ 5.0um), ultrafine particles (5.0um).
The clean room FFU filter membrane is an asymmetric membrane, and the micropore sizes are different on the front and back sides of the membrane.
The cross-sectional micropore size of the membrane is larger than the micropore size on its surface, and the vertical and horizontal micropore sizes are also different, with the longitudinal micropores being larger than the transverse ones.
Using the unique node fibrillarity, smooth surface, chemical resistance, air permeability and water impermeability, large air permeability, flame retardant, high temperature resistance, strong acid and alkali resistance and other characteristics of the ptfe filter membrane, it can be used for atmospheric dust removal, air purification, etc. .
The clean room FFU filter membrane produced has strong hydrophobicity, chemical resistance, waterproofness and low wind resistance, and can achieve high dust removal efficiency, for some extremely fine particles with a diameter of 0.1um-0.3um , the filtration level can reach H13-U16.
In addition, biaxially oriented film can undoubtedly achieve ultra-low emissions in intercepting various types of dust generated during the production process of the company, and it fully complies with current environmental protection standards.
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