General filter materials have low efficiency in removing dust particles below 1 μm, especially between 0.2 and 0.4 μm. Therefore, the emission concentration of dust particles below 1 μm is still very high, and the overall emissions The concentration range is around 40~80mg/m³. The use of PTFE-coated filter material can control the emission concentration to 10 mg/m³ or even lower, which can effectively control the emission of atmospheric pollutants.
Polytetrafluoroethylene is a A neutral polymer compound with a special molecular structure that is structurally symmetrical. The special structure makes it have good thermal stability, chemical stability, insulation, lubricity, water resistance, etc. Wide operating temperature range, can be used continuously for a long time at 260℃ (high temperature, instantaneous temperature can reach 280℃); strong chemical stability, corrosion resistance; good self-lubricating, extremely low friction coefficient, very little filtration wear; the surface of the PTFE membrane The tension is very low and has good non-stickiness and water repellency.
The coated filter material is made of fine pores and Low viscosity, so that the dust penetration rate is close to zero, and it provides good filtration efficiency when put into use. When the filtered objects deposited on the surface of the membrane filter material reach a corresponding thickness, they will automatically fall off and be easy to clean. PTFE coating The membrane filter material can achieve surface filtration. This is because the PTFE-coated filter material has a microporous structure and no through-holes on the surface, so dust cannot enter the interior of the membrane or the base material through the surface of the membrane. As a result, only gas passes through and dust or materials are trapped on the surface of the membrane. At present, membrane-coated filter materials have been widely used in many fields such as industrial dust removal and precision filtration.
The currently independently developed PTFE coated filter material is the core raw material for industrial dust removal filter cartridges and industrial dust removal filter bags. It has the characteristics of good compounding rate, fastness, reusability, good pulse dust removal effect, and high cost performance. , widely praised by customers! Interested parties can enter the store for consultation.
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