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 hydrolyze, the only chemical weakness being a susceptibility to oxidizing 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 °C);
? Excellent resistant to hydrolysis, acids and alkalies;
? Lower fiber release, Lower density,High mechanical characteristics.

 

Physical & Chemical Properties

Material	Ploypropylene(PO)
Weight(g/m2)	600
Thickness(mm)	2.2mm
Air permeability(m3/m2/min)	>15
Breaking Strength (N/5*20cm)(Warp)	>1200
Breaking Strength (N/5*20cm)(Weft)	>1800
Elongation(%)(Warp)	≤50
Elongation(%)(Weft)	≤45
Constant Working Temperature	90°c
Instant Working Temperature	130°c
Finishing Treatment	Singed,Calendering

 

Item	Name	Type	Air Permeability(±15%)	Thickness(±0.2%)	Weight
1	Filter Cloth	PO-1	260	2.6-2.8	550
2	Filter Cloth	PO-5	400	2.3-2.5	450
3	Filter Cloth	PO-10	600	2.2-2.4	400
4	Filter Cloth	PO-25	950	2.2-2.4	380
5	Filter Cloth	PO-50	1300	2.2-2.4	350
6	Filter Cloth	PO-100	1500	2.2-2.4	350
7	Filter Cloth	PO-150	1750	2.2-2.4	350
8	Filter Cloth	PO-200	2050	2.2-2.4	350
9	Filter Cloth	PO-250	2300	2.2-2.3	330

 

 Applications

Galvanic industry and Chemical industry
Pre-filtering solvents and acids
Pre-filter to extend final filter life
Final filter for noncritical filtrations
Liquid-solid separation with strong acid and alkali conditions filter press
Air filtration under 100°C