Polypropylene Needle Felt,Polypropylene Needle Punched Felt,Polypropylene Needled Felt

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Polypropylene Needle Felt 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. Feature 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 Liquid-solid sepration with strong acid and alkali conditions filter press Air filtration under 90℃ Specification Material Polypropylene/polypropylene scrim Weight(g/m2) 500 550 600 650 Thickness(mm) 2.0 2.2 2.4 2.6 Air permeability(m3/m3/min) 12.6 10.8 9.6 8.4 Tensile Strength(N/5X20cm) Warp >960 >1150 >1350 >1500 Weft >1060 >1400 >1650 >1800 Tensile elongation(%) Warp <35 <35 <35 <35 Weft <55 <55 <55 <55 Working temperature(oC) Continues <90 <90 <90 <90 Instant 110 110 110 110 Anti-acid Excellent Excellent Excellent Excellent Anti-alkali Excellent Excellent Excellent Excellent Anti-abrasion Excellent Excellent Excellent Excellent Finishing treatment Singeing or high temperature press

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China Zhejiang Heading Filter Material Co.,Ltd

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