PP filter bags
corrasion resistance
high quality
anti-abrasion
anti-acid,
anti-alkali and lower soften point of PP are better than polyester, and its stability of water solution is excellent, so PP needle punched filter felt is often used in the field is fume temperature under 100°C, the density of acid and alkali is high or the field of filtering solid from liquid that the density of acid and alkali is high.
specifiaction:
Comosition | PP/PP ordinary scrim | PP/PP high strength scrim | ||
Weight(g/m2) | 500 | 550 | 650 | |
Thickness(mm) | 2.1 | 2.3 | 2.5 | |
Air permeability(m3/m2/min) | 12.6 | 10.8 | 8.4 | |
(N/5×20cm) Tensile strength | Warp | >960 | >1200 | >1500 |
Weft | >1060 | >1500 | >1800 | |
Tensile elongation | Warp | <35 | <35 | <35 |
Weft | <55 | <55 | <55 | |
Broken strengty (Mpa/min | 2.15 | 2.10 | 2.10 | |
Working temperature(°C) | ≤88 | ≤88 | ≤88 | |
Short working temperature(°C) | 110 | 110 | 110 | |
Anti-acid | Excellent | Excellent | Excellent | |
Anti-alkali | Excellent | Excellent | Excellent | |
Anti-abrasion |
Excellent | Excellent | Excellent | |
The stabilityof water solution | Excellent | Excellent | Excellent | |
Finishing treatment | Singeing or high temperature press | High temperature press on both sides | ||
