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Polypropylene(PP) needle felt with Membrane
Post Time : 2012-05-16
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0086 574 8813 2208
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Product Details
Micro Filtration membranes are typically pleated with supports and used in cartridges, or die cut into flat parts used in small parts such as vents in medical devices or small filters in injection molded plastic housings. UF, NO and RO flat stock membranes are almost always spiral wrapped and configured into 40 long cylindrical modules. Hollow fiber membranes are usually packed in parallel fashion into cylinders. Fluid flow for MF is almost always perpendicular or dead-ended to the position of the membrane with particulate collecting on the surface of the membrane. Whereas, in UF, NF and RO, feed stream flow is parallel to the surface of the membrane as the fluid and particulate sweep the membrane surface. In this case, particles constantly transverse the surface and carried away in the majority of the feed stream, while the purified fluid penetrates the membrane. Permeate flow is referred to as flux . Feed pressure for MF Cartridges are typically from a few PSI to 20-30 PSI with flow rates measured in gallons per minute. UF, NF and RO have very tight molecular structures and are operated up from 50 to several hundred PSI with flux rates measured in a relatively low number of gallons per square meter of membranes surface area per day. As a result, a systems approach is common with UF, NF and RO separations.
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Comosition |
PP/PP ordinary scrim |
PP/PP high strength scrim |
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Weight g/m2 |
500 |
550 |
650 |
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Thickness mm |
2.1 |
2.3 |
2.5 |
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Air permeability m3/m2/min |
12.6 |
10.8 |
8.4 |
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Tensile strength N/5 20cm |
Warp |
>960 |
>1200 |
>1500 |
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Weft |
>1060 |
>1500 |
>1800 |
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|
Tensile elongation % |
Warp |
<35 |
<35 |
<35 |
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Weft |
<55 |
<55 |
<55 |
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Broken strength Mpa/min |
2.15 |
2.10 |
2.10 |
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Working temperature |
88 |
88 |
88 |
|
|
Short working temperature |
110 |
110 |
110 |
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Anti-acid |
Excellent |
Excellent |
Excellent |
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Anti-alkali |
Excellent |
Excellent |
Excellent |
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Anti-abrasion |
Excellent |
Excellent |
Excellent |
|
|
The stability of water solution |
Excellent |
Excellent |
Excellent |
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|
Finishing treatment |
Singeing or high temperature press |
High temperature press on both sides |
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Product Quality
Product Name: Polypropylene(PP) needle felt with Membrane
Item Code: ST0088
Lead Time : Within 15 days after received deposit
Negotiable : Can negotiable
Port : NINGBO CHINA
