PTFE membrane needle felt
The filtering surface of membrane is a very thin, extremely smooth, anti-chemistry.and microporous film of expanded PTFE. For durability, the ePTFE membrane is bonded to the surface of a base fabric (the backing material), and realizes surface filtration.By Coating inhance the Surface filtration. the dust rest on the surface of the filter felt not penetrating in it.
Fetures
Because the PTFE membrane has the advantage of smooth, chemical stability, long service life and waterproof, it results in excellent dustcake release, high filtration efficiencies and longer service life.
Application
Membrane surface filtration has been used successfully in baghouses for a number of years. During that time, it has proven that it can be an economical choice for product collection and emission control.
All the needle felt we made can be treated with PTFE membrane.
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Name
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PTFE membrane needle felt
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Compositions
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membrane
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Weight(g/ m2)
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500
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Thickness (mm)
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1.80
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Air permeability (L/m2/s)
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30-60
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Tensile strength
(N/5 20cm)
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wrap
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1000
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weft
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1100
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Tensile Elongation(％)
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wrap
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＜37
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weft
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＜35
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Broken strength
(Mpa/min) |
2.35
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Continuous working temperature(℃)
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≤130
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Short time Working temperature(℃)
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160
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Anti-acid
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Fair
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Anti-alkali
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Fair
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Anti-abrasion
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Excellent
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The stability of water solution
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Fair
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Finishing treatment
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Heating setting, PTFE membrane.
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