High Temperature Composite Needle Felt as an Alternative for Aramid
【Characteristics】
High temperature composite needle felt has mechanical strength, low elongation, high heat resistance, good wear resistance, folding and strong (several times more than fiberglass) acid, strong alkaline, good oxidation resistance. It has excellent chemical stability, does not age, dust trapped in surface easily peels off, increasing the life of the filter.
Today, PTFE fiber has the best chemical resistance in the world, extracted from fluorine stone, fiber melting point up to 327 ℃, instant temperature up to 300 ℃, PTFE fibers have good low wear resistance, flame retardancy and good insulation and thermal insulation. It can withstand severe corrosion and oxidative problems, does not occur during hydrolysis. High filtration efficiency and good cleaning performance. Even with high temperatures, surface adhesion is only a small amount of dust. Under the same operating conditions, the service life of the filter material is 1-3 times longer than other materials. High degree of price-quality.
【Test parameter】
Physical
Material: fiberglass, aramid short fiber, PTFE short fiber/non-alkaline glass fiber filament base cloth
Surface Weight: 950g/m2
Thickness: 2-2.5mm
Longitudinal: > 1800N / 5 × 20cm
Transverse: > 1800N / 5 × 20cm
Breathability: 8-12m2/ m2.min
Processing: Singeing, calendering, propics, high-density coating
Filtration Accuracy: > 8 microns
Concentration from the exit: <30mg / m³
Chemical
Acid resistance: good
Alkali resistance: excellent
Abrasion resistance: excellent
Hydrolysis Inactivity: Excellent
Temperature
Working: (℃) 240 (dry)
Peak: (℃) 280 (dry)
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