Polyimide also know as P84. Polyimide needlefelts are excellent high temperature filter media in terms of performance, generally surpassing the other standard media except for PTFE.
P84
Features
- Excellent steady under high temperature and resistance to acid
- P84 can operate continuously, under practical and low acid working conditions, at temperatures up to 260
- High filtration efficiency, high tensile strength
- The complex cross sectional shapes create 30-90% more collection surface area when compared to round or oval shaped fibres
- The unique tri-lobal fibre structure of P84 increases filtration efficiency.
Applications
- Incinerator plants,
- Cement Kiln gas
- Power generation.
- Asphalt/hot mix plants flue gas
- Mineral’s processing
- Soil remediation facilities
Disadvantages
- Fair resistance to alkali
Anti Acid – Good
Anti alkali – Good
Oxidizing Agents – Fair
Hydrolysis Stability – Fair