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PP NEEDLE PUNCHED FELT FILTER CLOTH

 

PP needle punched felt filter cloth
Polypropylene is a relatively low temperature fiber with quite excellent chemical resistance which finds use in specialist applications such as the chemical industry.
The fibers cannot hydrolyse, the only chemical weakness being a susceptibility to oxidising agents. Other than that they can be used almost universally provided the temperature is below 90°C.The fiber is of a low density (it floats in water) and so a given denier of fiber is much larger in diameter than the polyester equivalent. This leads to felts being quite thick, almost 50% thicker than for the same polyester weight.The fiber is very prone to static build up so the felts are often augmented by the incorporation of either conductive fibers or a conductive scrim or a combination of the two. This then helps to dissipate potential static electric discharges.

 

Features:

• Smooth surface, more defined pore size and good air permeability 
• Low temperature resistance ( 88-110 ℃) 
• Excellent resistant to hydrolysis, acids and alkalies. 
• Lower fiber release, Lower density,High mechanical characteristics

 

Applications:

• Galvanic industry and Chemical industry 
• Prefiltering solvents and acids 
• Prefilter to extend final filter life 
• Final filter for noncritical filtrations 
• TLiquid-solid sepration with strong acid and alkali conditions filter press 
• Air filtration under 100℃

 

Specification

Compositions

PP/PP ordinary scrim

Weight (g/ m2)

500

550

Thickness (mm)

2.1

2.3

Air permeability (L/m2/s)

12.6

10.8

Tensile strength
(N/5 20cm)

wrap

>960

>1200

weft

>1060

>1500

Tensile Elongation(%)

wrap

<35

<35

weft

<55

<55

Broken strength
(Mpa/min)

2.15

2.10

Continuous working temperature(℃)

88

88

Short time Working temperature(℃)

110

110

Anti-acid

Excellent

Excellent

Anti-alkali

Excellent

Anti-abrasion

Excellent

The stability of water solution

Excellent

Finishing treatment

High temperature hot pressing,Singeing

 

 

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