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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

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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