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Hydrophilic / Hydrophobic PVDF Membrane
Polyvinylidene Fluoride (PVDF) membrane is a naturally hydrophobic, unsupported membrane, it has received great attention because of its outstanding properties including high thermal stability, great mechanical strength and chemical resistance, which makes it has good resistance to organic solvents, corrosion, oxidation and withstand solutions of pH 2-10.
Cobetter Polyvinylidene Fluoride (PVDF) filter is available in Hydrophobic version or Hydrophilic version(after hydrophilic treatment). The PVDF membrane is produced with high porosity and optimized porous structure, it is an essential membrane in various industries, for example Medical, Laboratory,Food & Beverage, Pharmaceutical, etc.
The hydrophobic PVDF membrane with great hydrophobic ability, fast air flow rate and professional general /sterile filtration capability, easy for assembling as unnecessary to distinguish the front and back side, can be ideally used as a PVDF venting membrane filter or air filtration/sterilization for medical devices or diagnosis assay.
Also hydrophobic PVDF membrane can be used as a carrier media of biosensors or a transfer membrane for protein blotting applications (Western Blot / ELISPOT). The optimized porous structure and high binding capacity for protein of Cobetter hydrophobic PVDF membrane makes it easy to access bound proteins and remove unbounded probes. The low background for fluorescent blots of PVDF membrane significantly increases signal-to-noise ratios for high sensitively in quantitative, multiplexing applications.
For more details, please click to: PVDF Western Blotting Membrane
The hydrophilic PVDF membrane with very low protein binding and high flow rate features, is ideal for clarification, pre-filtration and sterile filtration of fluids such as water, diagnostic reagent, buffer, cell culture medium, ophthalmic solution, blood products/serum, etc, offering efficient bacterial and particulate retention.
Also the hydrophilic version PVDF membrane are popular in the usage of syringe filter, funnel filter, vacuum filter and sterility testing devices applications for particles removal, sample preparation or general filtration,etc.
| S58 Filtration Unit | Ascle U Filtration Funnel | Disposable Vacuum Filter | Sterility Testing | Syring Filter |
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Meet ATCC*19146) Retention Test. 107cfu/ cm Brevundimonas diminuta (ATCC*19146)
"Non-fiber releasing" as defined by FDA 21 CFR 210.3(b)(6) Filter Standards
Low Extractables & Background
Broad Chemical Compatibility
Hydrophobic PVDF Membrane - Ventilation Filter - Sterile-grade Filtration for Compressed Air, Oxygen, Nitrogen. Etc - Binding Assay - Western Blotting Membrane - Immunoblotting Test - Protein Sequencing - Biosensors | Hydrophilic PVDF Membrane Widely Used for Below Filtration as PVDF Filters (Membrane Filters, Capsule Filter, Cartridge Filter, Syringe Filter, Funnel Filter, etc) - Particulate Removal - Clarifying Filtration - General Filtration - Analytical Sample Preparation, μHPLC - Diagnostic Reagent Filtration and Sterilization - Media filtration - Low Protein Adsorption Filtration - Endotoxin Adsorption (Positively Charged) |
General Specifications
Color | White |
Surface | Plain |
Pore Size | 0.1 / 0.22 / 0.3 / 0.45 / 0.65 / 1.0 / 2.0 μm |
Wettability | Hydrophilic or Hydrophobic |
Sterilization | Autoclave, Ethylene Oxide, E-Beam, Gamma Irradiation |
Sealing Compatibility | Ultrasonic, Heat, Mechanical, RF Welding, Inserting Molding |
Specifications
Detailed Description | Pore Size | Thickness | Water Flow Rate | Bubble Point | Endotoxin |
Hydrophilic PVDF | 0.1μm | 125μm | 85s | 550 kPa | ≤ 0.5EU/ml |
0.22μm | 125μm | 35s | 390 kPa | ≤ 0.5EU/ml | |
0.45μm | 125μm | 9s | 230 kPa | ≤ 0.5EU/ml | |
0.65μm | 125μm | 6s | 180 kPa | ≤ 0.5EU/ml | |
1.0μm | 125μm | 12s ( -5 kPa ) | 110 kPa | ≤ 0.5EU/ml | |
2.0μm | 125μm | 6s ( -5 kPa) | 75 kPa | ≤ 0.5EU/ml | |
Detailed Description | Pore Size | Thickness | Air Flow Rate | WEP | Endotoxin |
Hydrophobic PVDF | 0.22μm | 160μm | 40s | 260 kPa | ≤ 0.5EU/ml |
0.22μm | 65μm | 28s | 320 kPa | ≤ 0.5EU/ml | |
| 0.45μm | 115μm | 11s | 140 kPa | ≤ 0.5EU/ml | |
1.0μm | 110μm | 4s | 70 kPa | ≤ 0.5EU/ml |
Cobetter Hydrophilic PVDF Membrane Shows Extremely Low Protein Binding
| Test Method: 1. Put the membrane samples and 1mg/ml BSA solution together into the bottle, and the bottle will be put on the laboratory shaker for 1 hour vibration to make sure the protein is fully absorbed. 2. Use an ultraviolet spectrophotometer to measure the protein value of the BSA solution before and after the membrane adsorption, then calculate the protein bound of each membrane. |
- Roll Type
- Sheet Type
- Disc Type
- Adhesive Backing Type
- Customization
For technical data sheet or application inquiry, you are more than welcome to contact our sales representative by sales@cobetterfilter.com or leave a message
PVDF Cartridge Filter Solution | PVDF Capsule Filter Solution |
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COPYRIGHT 2014 Hangzhou Cobetter Filtration Equipment Co.,Ltd ALL RIGHTS RESERVED.
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