Hydrophobic PTFE Membrane Vents for IV Filters - Oleophobic Custom Solutions from China Suppliers & Factory
Product Introduction
Features
- Inherently Hydrophobic property
- High porosity
- Excellent chemical stability
- Oleophobic property optional
- High tensile strength
- High air flow of breathability
- Low solubility substances
- Antibacterial
- Wide pore options
- Performance customizable
Specifications
| Property | Specification Details |
|---|---|
| Material | PTFE |
| Thickness | Customizable |
| Pore size | Customizable |
| WR | 1.0μm: 60kpa@15min; 0.45μm: 150Kpa@15min; 0.2μm: 200Kpa@15min |
| Air Flow (mL/cm2/min) | 1.0μm: 2300; 0.45μm: 700; 0.22μm: 300 |
| Endotoxin | ＜0.5EU/ml |
Performance
Applications
- IV filters’ venting
- Gas filtration
- Bacteria interception
- Air-liquid separation
- Drainage bag/bottle
- Aerosol & microorganisms interception
- Medrad (high pressure injector) venting
- Humidifier bottle bacteria venting
- Spike & caps bacteria venting
- 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 material itself, preventing gas from passing through.
- Avoid contact with alcohol or high-permeability solvents, otherwise, the material will become hydrophilic before it is fully dried (oleophobic ePTFE membrane does not have this issue).
Ordering Information
| Material | Pore Size | Thickness (μm) | Size | Lot No. |
|---|---|---|---|---|
| PTFEs | 022 (0.22μm) | Customized | Roll | - |
| - | 045 (0.45μm) | - | Sheet | - |
| - | 100 (1.0μm) | - | Customizable | - |
Frequently Asked Questions (FAQ)
Hydrophobic PTFE membranes act as excellent venting media because they allow entrapped air to escape while blocking liquids. This ensures that only air-free fluids reach the patient's bloodstream, maintaining a safe and smooth infusion therapy.
Oleophobic PTFE membranes are highly recommended when the infusion therapy involves lipids or alcohol-based drugs (such as chemotherapeutics). The oleophobic property prevents these low-surface-tension fluids from wetting the membrane, ensuring long-lasting venting performance.
1.0μm membranes provide high air-flow rates for quick air elimination. 0.45μm membranes offer aerosol bacterial interception to trap airborne particles and bacteria. 0.2μm membranes provide the highest level of safety and bacterial retention, making them ideal for standard sterilizing-grade IV filters.
No, sterilization by irradiation is not acceptable for these PTFE membranes as it may damage the material structure and compromise its performance.
Contact with alcohol or high-permeability solvents can temporarily make standard hydrophobic PTFE membranes hydrophilic before they are completely dry, potentially causing leaks. If alcohol compatibility is required, using an oleophobic ePTFE membrane is recommended to avoid this issue.