PTFE Cloth
PTFE (Polytetrafluoroethylene) filter felt is a polymer material with excellent chemical resistance, high temperature resistance and low friction coefficient. It is used in many industrial applications requiring high temperature, corrosive gas or liquid filtration. It is one of the most common materials used to make filter bags.
Advantages of PTFE Filter Felt
⚫ Chemical resistance: PTFE has excellent chemical resistance and can resist the erosion of a variety of corrosive substances such as strong acids, strong alkalis, and solvents.
⚫ High temperature resistance: PTFE can work in a higher temperature range, usually able to withstand temperatures above 200°C (392°F).
⚫ Low coefficient of friction: The surface of PTFE has a very low coefficient of friction, which makes the surface of the filter felt not easy to adhere to pollutants and easy to clean.
⚫ High Filtration Efficiency: Due to the fine nature of PTFE fibers, PTFE filter felts can effectively capture fine particles and particulates.
⚫ Long Life: PTFE filter felts typically have a long life due to their chemical and temperature resistance.
Features of Our PTFE Filter Felt
| Product Name | PTFE impregnation PTFE needle felt 750g/m² | |
| Product Code | ES-PTFE750TFI | |
| Physical properties | ||
| Fiber | PTFE fiber | |
| Scrim | PTFE yarn | |
| Weight | g/m² | 750 |
| Thickness | mm | 1,1 |
| Width | m | ≤2.2 |
| Finish treatment | PTFE impregnation | |
| Air permeability | l / m2 / S @200pa | 100 ~ 160 |
| Tensile strength | Warp (N/5×20cm) | 800 |
| Weft(N/5×20cm) | 800 | |
| Tensile elongation | Warp (%) | 15 |
| Weft (%) | 20 | |
| Temperature | ||
| Continue temperature | C° | 250 |
| Instant temperature | C° | 280 |
| Chemical Properties | ||
| Anti-acid | Excellent | |
| Anti-alkali | Excellent | |
| Anti-abrasion | Good | |
| Hydrolysis stability | Excellent | |
⚫ Our capacity is 5000m2 per day.
⚫ The max width is 2.2 m.
⚫ It can work in max 270℃.
⚫ Standard weight: 750gsm, 800gsm
⚫ Finish treatment: Singeing, Calendering, Heat setting.
Blending PTFE(Teflon) Needle Felt: we can lower the cost by 10% – 30%. Our sales manager will advise you to choose the most suitable fabrics after we have a clear understanding of your plant. Blending PTFE Needle Felts are more economical. After our calculation, we can lower the cost by 10%-30%. PTFE(Teflon) Needle Felt is one of the most excellent chemical fiber fabric. This material has acid-alkali resistance of various characteristics of organic solvents, almost insoluble in all solvents. At the same time, PTFE fabric has great heat-resistance and its coefficient of friction is low, so we can easy to clean this fabric.
Physical and Chemical Properties
| Product Name | PTFE membrane PTFE needle felt 750g/m² | |
| Product Code | ES-PTFE750TFM | |
| Physical properties | ||
| Fiber | PTFE fiber | |
| Scrim | PTFE yarn | |
| Weight | g/m² | 750 |
| Thickness | mm | 1.1 |
| Width | m | ≤2.2 |
| Finish treatment | PTFE impregnation, PTFE membrane | |
| Air permeability | l / m2 / S @200pa | 30 ~ 80 |
| Tensile strength | Warp (N/5×20cm) | ＞800 |
| Weft(N/5×20cm) | ＞800 | |
| Tensile elongation | Warp (%) | 10 |
| Weft (%) | 15 | |
| Shrinkage (250℃) | Warp (%) | ＜1 |
| Weft (%) | ＜1 | |
| Temperature | ||
| Continue temperature | C° | 250 |
| Instant temperature | C° | 280 |
| Chemical Properties | ||
| Anti-acid | Excellent | |
| Anti-alkali | Excellent | |
| Anti-abrasion | Good | |
| Hydrolysis stability | Excellent | |
Post-treatment
For PTFE needle punched felt, we can treat it with different post-processing according to different working conditions. There are mainly the following post-processing treatments:
- PTFE Impregnation
- PTFE Membrane
- Anti-static
Applications
PTFE filter felt is widely used in high temperature flue gas purification, corrosive gas filtration, high temperature liquid filtration and other fields. In these applications, they can effectively capture and filter out solid particles and liquid droplets in the air, protecting the environment and equipment from pollution and corrosion.
