China Polypropylene Needle Felt PP Needle Felt with Screen Mesh Supported, Find details about China Filter Cloth, Filter Fabric from Polypropylene Needle Felt PP Needle Felt with Screen Mesh Supported
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(ºC) | 88 | 88 | |
Short time Working temperature(ºC) | 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 |
Property | Polyester (PE) | Polypropylene | Nylon |
Acid | Excellent | Excellent | Excellent |
Alkali | Average | Excellent | Excellent |
Electrical Conductivity | Poor | Good | Average |
Elongation | 30%-40% | Better than PE | Poor |
Recovery | Excellent | Slightly better than PE | Poor |
Abrasion | Excellent | Good | Excellent |
Heat Resistance | 150 °C | 90 °C | 100 °C |
Softening point | 230 -240 °C | 140 -150 °C | 200 °C |
Melting point | 255 -265 °C | 165 -170 °C | 220 °C |