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    1. Medical

      Cobetter Skived PTFE Membrane is a porous PTFE membrane, produced by skiving process based on sintering technology. The PTFE granules are sintered and formed under high temperature and high pressure molding, then skived into a membrane with a specific thickness by professional skiving equipment, and converted into roll and more applicable forms. It is worth mentioning that the pore size of the membrane has been determined in the early sintering process, combine with Cobetter's special skiving process and professional process control, our skived porous sintered PTFE membrane ensures the consistency of the pore size and the stability of the pore structure. The skived PTFE is made of pure PTFE material without any additives, reinforcing agents, and no supporting layer. Compared with the expanded PTFE membrane, sintered and skived PTFE membrane can better exert the great physical and chemical properties of Polytetrafluoroethylene PTFE material itself. In terms of formats, Cobetter offers standard rolls, sheets, die cut discs, connected with adhesives, and various other forms. 


      Manufacturing Process

      Sintered-PTFE-Manufacturing-process-CBT-01.png

      Sintered-PTFE-Manufacturing-process-CBT-02.png


      For applications in need of ultra-hydrophobicity, high air permeability, high temperature tolerances, good corrosion resistance, out-standing chemical resistance, and great robustness, sintered and skived PTFE membrane is a perfect choice.


      Key Measuring Properties

      - Water Entry Pressure (WEP)

      Air Permeability (Gurley)

      Maximum Working Temperature

      Continues Working Temperature

      IP Protection Rate

      Reflective Percentage

      Dielectric constant

       

      Suitable Assembly Methods

      Thermal welding

      Ultrasonic welding

      Connected with adhesive

      Press fit

      Overmolding


      Geometric Options


      WidthLengthThicknessPore Size
      Roll

      Various slit roll width, maximum 300mm

      Customized length0.1 - 3.5 mm0-10um

      Size

      Pore Size
      DiscsBased on die cutting, maximum 300mm diameter discs0-10um



      Other Various Formats

      Rotary cut plugs

      Rods

      Tubes

      Thermoformed shapes

      Customized shapes from machined process


      Sintered and Skived PTFE Various Applications

      Medical Devices

      Infusion Devices

      IV Catheter, Arterial Syringe Devices

      Drug Delivery Components

      Infusion Therapy Vents (venting membranes for IV spike, IV Filter, Prime Stop Cap) 

      Injection Control

      Reusable Sterilization Containers, use PTFE reusable filter, withstand repeated sterilization cycles of high temperature and pressure, remain stable bacteria resistance BFE99.99%.

      Lyophilization Tray, Bone/Tissue Protection Package, 

      use PTFE lyophilization vent filter, ensure low temperature stability, as sterile barrier with BFE99.99%.

      Drainage

      Ostomy System, Urinary Drainage Bag

      Sensor Application☆

      Sensor Protective Filter

      Sensor protection skived PTFE membrane is designed to protect the sensor from dust, water and other pollution sources, and balance the internal and external pressures to improve the sensor life term. 

      Air Monitoring Sensor

      For environmental gas analysis applications, the specially treated PTFE filter can specifically adsorb single or multiple gases that may interfere the sensor reading, including H2S, SO2, HMDS, organic substances, alcohol, etc.

      Electrochemical Sensor

      PTFE catalyst carrier filter can collect current, and is not easy to shrink or deform due to the curing of the catalyst. It has the characteristics of high pressure resistance.

      In-Vitro Diagnostics

      Sample Analysis

      Regent carrier, Sample Filtration, Wick, Vent

      Lab Analytical Science

      Chromatography

      Solid Phase Extraction (SPE) frits, Automated pipetting system

      Specially treated PTFE pipette filter, used to capture and bind specific target substances

      Protein concentration, purification and filtration, retain organic solvents

      Purification and Extraction

      DNA/RNA extraction and purification, Reagent carrier

      Bio-processing Media

      Disposable biological processing media and filters

      Automotive and Aerospace

      Lighting

      Vent for automotive lighting shell, balance the pressure, prevent moisture entering, and is tough and durable.

      Battery

      Battery vent, safety isolator, easy for assemble

      Powertrain

      Engine system vent, waterproof and oil-proof

      Fluid Reservoir

      Fluid reservoir vent

      Electronic Products

      Acoustics

      Mobile electronic components, water-proof and acoustic vent

      Flow modulator, balance the airflow pressure in the speaker room

      Mobile Electronics housing

      Mobile electronic products vent, providing IP protection above IP6

      Outdoor electronics housing vent

      Telecommunication

      Low dielectric media in antennas and cables

      UVC Reflective Media
      Cobetter microporous PTFE sheets provide reliable resistance to degradation, high reflectivity, and diffuse (Lambertian) reflectance

      UVC Disinfection

      Air conditioning system disinfection, using Ultraviolet light reflective membrane

      Air purifier, using UV light reflective membrane

      Closed disinfection system, using Disinfection Ultraviolet light reflective PTFE membrane

      UVC lighting system, using Disinfection UV light PTFE membrane

      Robot and mobile disinfection system, using Ultraviolet light reflective sheet

      Portable handheld UV system, using Ultraviolet light reflective sheet

      Household water disinfection system, using UV light reflective sheet

      Building water disinfection system, using UV light reflective sheet

      Personal water disinfection system, using UV light reflective sheet

      UV Applications

      Phototherapy, using Ultraviolet light reflective PTFE membrane

      UV curing, using Ultraviolet light reflective PTFE membrane

      Integrating spheres, using UV light reflective PTFE
      Architectural lighting, using UV light reflective PTFE
      LED application, using UV light reflective PTFE

      Multiple optical test applications, in photometry equipments, using UV light reflective PTFE

      Industrial Applications

      Fuel system

      Marine fuel vent, Oleophobic PTFE membrane, reduce hydrocarbon emissions

      Fuel filtration and vent for small engine systems

      Industrial Packing

      Covering or packaging material for industrial and household containers

      Petroleum and Gas

      Transmission ventilation system vent 



      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




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