Polyacrylonitrile (PAN)

Polyacrylonitrile is an acrylic homopolymer, known as acrylic in filtration, is made from 100% acrylonitrile.

The main advantage of acrylic fiber (polyacrylonitrile) is its excellent resistance to hydrolysis, its low cost compared to high-performance fibers and relatively high thermal stability. Acrylic is not hydrolyzed, many applications use water repellent treatments to reduce tendencies of adhesion of moisture or rainfall.

Application in the following industries:

  • Cement industry
  • Road construction
  • Metal industry
  • Drying industry
Chemical resistance:

  • Acids – good
  • Alkalis – not bad
  • Oxidizers – good
  • Hydrolysis – excellent
  • Solvents – good

Maximum Continuous in Dry Conditions:  120°C 
Maximum Surge in Dry Conditions:  145°C 

Additional treatments for polyacrylonitrile fabrics used:

 Filter bags: Polypropylene

oil and water repellent

 Filter bags: Polypropylene

oil and water repellent PTFE-based

 Filter bags: Polypropylene


 Filter bags: Polypropylene

with admixture of PI (polyimide) fibers