Product Item: Membrane Needle Punched Felt (PTFE Coated Felt)
Product Introduction: Membrane makes the felt obtain the properties of membrane material, at the same time felt keeps the original properties. . Generally, we use polytetrafluoroethylene (PTFE) for membrane. Its surface is smooth with high air permeability, and it is waterproof. Its chemical properties are stable. It can nearly retain all the particles in the dust gas, furthermore, it can guarantee the larges air flow rate but not increase the running resistance.
Property Index:
a.Polypropylene membrane needle punched felt
Make the Polypropylene felt obtain higher working temperature, smoother surface. This can make the cakes removal easier, and increase the filtration precise without change of large air permeability.
Material |
Polypropylene+PTFE coated |
Weight (g/m2) |
500 |
|
Thickness (mm) |
1.9 |
Air permeability (m3/m2/min) |
≥12 |
Breaking strength(N/5*20cm) |
Warp |
≥1000 |
Weft |
≥1000 |
Elongation(%) |
Warp |
≤35 |
Weft |
≤40 |
tenacity ( Mpa/min) |
2.55 |
Constant working temperature (℃) |
110 |
Instant working temperature (℃) |
150 |
Acid resistant |
excellent |
Alkali resistant |
excellent |
Abrasion resistant |
excellent |
Hydrolyze stability |
excellent |
Finishing |
Singed, calendering |
Material |
Polyester +Polypropylene+PTFE coated |
Weight (g/m2) |
500 |
|
Thickness (mm) |
1.90 |
Air permeability (m3/m2/min) |
13 |
Breaking strength(N/5*20cm) |
Warp |
≥1000 |
Weft |
≥1100 |
Elongation() |
经向 |
≤35 |
纬向 |
≤40 |
Constant working temperature (℃ |
130 |
Instant working temperature (℃) |
150 |
Finishing |
Singed, calendering ,PTFE coated |
Acid resistant |
excellent |
Alkali resistant |
good |
Alkali resistant |
excellent |
Hydrolyze stability |
good |