introduction
The production of PTFE needle-punched filter material involves a series of complex steps, including fiber drawing, detangling, twisting, warping, reeding, expanding, weaving, and post-treatment. The post-treatment process comprises heat setting, sintering, and deep PTFE impregnation, which forms a protective layer around each PTFE fiber, enhancing its oxidation resistance and reducing inter-fiber porosity to effectively prevent dust penetration.
Product Features
- Abrasion Resistance: PTFE fibers boast superior abrasion resistance, resisting wear and thereby extending the service life of the filter material.
- Corrosion Resistance: With its exceptional chemical stability, PTFE fiber demonstrates excellent corrosion resistance against most chemicals, including strong acids, bases, and organic solvents, making it suitable for various corrosive environments.
- Chemical Stability: The macromolecular chain structure of PTFE fiber ensures its stability in harsh flue gas filtration environments, resisting aging or degradation.
- Surface Properties: PTFE needle-punched filter material has a smooth surface with oil and water repellency rated up to level 5, maintaining this property even at high temperatures. This allows it to retain its oil and water resistance during washing and ensures long-lasting performance.
application area
- Air Filtration: For filtering air in air conditioning systems, clean rooms, electronic factories, etc., effectively removing pollutants such as dust, bacteria, and viruses from the air.
- Flue Gas Purification: Crucial in flue gas treatment in industries like steel, cement, and power generation, significantly reducing emissions of dust, SO2, NOx, and other pollutants. PTFE membrane-coated needle-punched felt is particularly favored for its high filtration efficiency and long service life, with membrane pore sizes typically between 0.23μm, achieving filtration efficiencies of over 99%, nearly achieving zero emissions.
- Chemical Industry: For filtering gases during chemical production processes, preventing harmful gases from harming the environment and humans.
- Other Sectors: Also plays a significant role in gas and liquid filtration in industries such as petroleum, food, and pharmaceuticals.
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