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Hydrophobic PTFE Membrane for Vented Urine Bags & Drainage Bottles - China Suppliers & Factory
Product Introduction
PTFE membrane is hydrophobic in nature and is effective barriers to microbes and particulate matter. The high reduction and water intrusion pressures allow the membranes to resist high surface tension liquids while venting gases.
Membranes are used in a variety of applications such as vents of drainage systems, sensors protection and priming components because it’s available in a range of pore sizes options to suit your retention and flow rate requirements.
These hydrophobic and oleophobic characteristics offer the membrane itself broad chemical compatibility and excellent particulates retention. It serve as a barrier and reduce the risk of particulate contamination in gas where aerosol comes out of the drainage bottle & bag to avoid the health care personnel get infections.
PTFE membranes are laminated to a non-woven polyester support material, offering easy handling and physical characteristics, giving the membrane wide sealing methods, and also sterilizing methods compatibility.
Features
- Hydrophobic and oleophobic properties
- Excellent removal performance of particle, bacterial and viral
- Protection from airborne contaminants to patients, workers, and equipment
- Vents of sealed systems such as drainage containers and priming accessories
Specifications
| Property | Specification |
|---|---|
| Material | PTFE-PP/PTFE-PET |
| Thickness | 100μm~200μm, customizable |
| Pore size range | 0.22μm/0.45μm/1.0μm |
| WBT performance | 0.22μm: 200Kpa@10min; 0.45μm: 100Kpa@10min; 1.0μm: 60Kpa@10min |
| Air Flow (ml/min/cm²) @0.1bar | 0.22μm: 300; 0.45μm: 700; 1.0μm: 2300 |
| Endotoxin | <0.5EU/ml |
Performance
Sealing Methods
- Adhesive
- Insert molding
- Mechanical
- Radio frequency
- Ultrasonic
Sterilization
- Ethylene oxide
- Autoclave
Other Applications
- Electronic equipment protection
- Sensor protector pressure equalization
⚠️ Warning
- Handle with care to avoid damaging the filter material
- Sterilization by irradiation is not acceptable
- Do not use glue or cyclohexanone for adhesion as it can clog the micro porous itself, preventing gas from passing through
Ordering Information
| Material | Pore Size | Thickness (μm) | Size |
|---|---|---|---|
| PTFEo | 022 | Customized | Roll |
| 045 | Sheet | ||
| 100 | Customizable |
Frequently Asked Questions (FAQ)
What are the primary functions of the PTFE membrane?
PTFE membranes are naturally hydrophobic and act as effective barriers to microbes and particulate matter. They resist high surface tension liquids while allowing gases to vent.
What pore sizes are available for these membranes?
The membranes are available in a variety of pore sizes, specifically 0.22μm, 0.45μm, and 1.0μm, to meet different flow rate and retention requirements.
Which sterilization methods are compatible with PTFE membranes?
PTFE membranes are compatible with Ethylene oxide and Autoclave sterilization methods. However, sterilization by irradiation is not acceptable.
How can PTFE membranes be sealed?
Common sealing methods include adhesive, insert molding, mechanical, radio frequency, and ultrasonic sealing.
Why is it advised not to use glue or cyclohexanone for adhesion?
Glue or cyclohexanone should not be used because they can clog the micropores of the membrane, which prevents gas from passing through and compromises venting performance.