Nowadays, there are many air filters on the market, which can be roughly divided into three categories according to their use: primary-efficiency air filters, medium-efficiency air filters and high-efficiency air filters.
What can filter a large number of pollutants in the air is that the core of the air filter is the Teflon air filter membrane.
?There are two main methods for preparing Teflon air filtration membranes that have been reported so far.
One is to add the pore-forming agent NaCl to ptfe, then make the ptfe into a film, and then remove the NaCl by heating and washing with water. The vacancies left by the NaCl form pores. The microporous film made by this method has the smallest pore size. is 0.1μm.
The second is the mechanical stretching method. The microporous film made by the modified method has a special structure of island-like “knots” connected by microfibers. It is currently the main method for preparing PTFE microporous films.
? is a polytetrafluoroethylene filter membrane manufacturer specializing in R&D, production and sales.
The polytetrafluoroethylene filter membranes we produce are all imported raw materials, with high uniformity, stable performance and good air permeability.
It also has high filtration efficiency and can meet the filtration efficiency level requirements of sub-high efficiency, high efficiency and ultra high efficiency filters.
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