PPS high temperature resistant needle-punched filter felt
PPS fiber can keep intensity completely and bear chemistry naturing inherently, keep good filtration performance among the abominable environment, reach ideal service life. In coal boiler, rubbish incinerator, power plant of fly ash filtering of pulse clear dust catcher, PPS filter felts are an ideal filtration material.PPS filter felt is one of the main filter material able to bear the high temperature according to processed of production technology and artificial material of other high-temperature filter felt.
PPS (Polyphenylene Sulfide) Fibers Features
1. Exceptional Stability for a Wide Range of Temperature and FrequencyVariations
(working temperature 190℃, instantaneous operating temperature 230℃)
2. Be suitable for the oxygen content below 15%;
3. Chemical Resistance to Acids, Alkalis and Organic Solvents
4. Containing moisture in the flue gas; Hydrolysis Resistance
5. Very stable in finished felt form with stability standardsat 2% shrink or stretch.
6. Favorable temperature resistance melting point 285℃, limited oxygen index 34~35;
Disadvantages
- Fair resistance to oxidation under high temperature
When the oxygen in the smoke ( O2 content) over 10% and the operating temperature over 165℃, pps will be in decomposition.
Applications
PPS needle felt are suitable for a range of baghouse filtration applications that include:
• Coal fired boilers baghouses
• Municipal solid waste boilers and waste incinerator
• Calciners / Catalysts
•Electric power plant
• Electrolysis and otherSpecialtymembranes
• Iron and non ferrousMetal Industry
Compositions | PPS fiber |
Weight (g/m2) | 500 |
Thickness (mm) | 1.8 |
Air permeability(L/m2/s) | 200-300 |
Tensile strength (N/5×20cm) | Warp | ≥900 |
Weft | ≥1000 |
Tensile Elongation (%) | Warp | ≤30 |
Weft | ≤30 |
Broken strength(Mpa/min) | 2.6 |
Continous operating temperature(℃) | ≤190 |
Short time operatingtemperature(℃) | 230 |
Anti-acid | Excellent |
Anti-alkali | Excellent |
Anti-abrasion | Excellent |
The stability of water solution | Excellent |
Finishing treatment | High temperature hot pressing,Singeing |