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Vyon® Polytetrafluoroethylene (PTFE)

Polytetrafluoroethylene (PTFE) is a versatile, high performance fluoropolymer composed of carbon and fluorine atoms. While similar in structure to polyethylene (PE) and polypropylene (PP), PTFE carbon chain is shielded by fluorine atoms (Figure 1). This carbon-fluorine bond is known as 'one of the strongest bonds in organic chemistry' (dissociation energy: 460 KJ/mol) and as a result, gives PTFE exceptionally high chemical and thermal resistance.

Our expertise in sintering porous plastics enables us to produce high quality, PFOA/PFAS-free, sintered Vyon® PTFE with consistent pore size, permeability and pore size with no compromise on performance. Although PTFE is commonly associated with non-stick applications in the food industry, PTFE is widely used the life science, medical and pharmaceutical applications for its hydrophobic properties, high mechanical and chemical resistance. 

Figure 1. Product, SEM and structure illustration of Vyon® PTFE.

Properties of Vyon® PTFE

  • Hydrophobic
  • Excellent chemical resistance
  • High and low temperature resistance
  • Mechanical flexibility

Popular Applications

  • Chromatography eg. HPLC, sample preparation
  • Medical Devices eg. catheters

Grade

Material

Typical Mean Pore Size (µm)

Operating Temperature (°C)

Available Thickness (mm)

Vyon® PTFE10

PTFE

10

-60 - +260

1.0, 1.5, 2.0

Vyon® PTFE20

PTFE

20

-60 - +260

1.0, 1.5, 2.0

 

Polymer Chemical Compatibility Comparison

  Polymer Type
HDPE/UHMWPE PP PTFE
Chemicals  Acids      
 Bases      
 Oil      
 Non-polar aliphatic solvent      
 Aromatic solvent      
 Halogenated solvent      
 Oxidising agent      

Green - Good compatibility, Yellow - Fair compatibility, Red - poor compatibility

Regulatory Approvals

  • PFOA/PFAS-free: Compliant with (EU)10/2011, FDA, (EC)1935/2004 and (EC)2023/2006
  • USP Class VI
  • Water Safety: Compliant with W270 (11/2007) of the DVGW for the use in the drinking water sector
  • EU and FDA approved: Compliant with (EU)10/2011, FDA, (EC)1935/2004 and (EC)2023/2006

For more information on the range and grades of Vyon® PTFE materials available please contact enquiries@porvairsciences.com

Get In Touch

Please drop us an email via enquiries@porvairsciences.com or simply complete the contact form below to get in touch with a member of our Vyon® team.