meta - Aramide Fibre (m-AR)

meta - Aramide Fibre (m-AR)

A high performance aromatic fibre  made of the main components 1,3- phenylenediamine and isophthalic acid. DuPont, with their Nomex® brand fibre  is one of the most important suppliers. In general m-AR tends to be gradually degraded under hostile flue gas conditions e. g.: combination of elevated temperatures above (140°C to 200°C and excessive moisture (>10%). Consequently filter media made of m-Aramid are frequently processed with an additional protection against acids and hydrolysis.
Dog bone-shaped fibre cross-section with good dust separating efficiency. 

Typical fields of application:

Specific properties
Temperature resistanceContinuous:  200 °C/Peak: 240 °C
Melting pointDecomposition begins above 370 °C
Spontaneous ignition675 °C
LOI-Value26–30 %
Density1,38 g/cm³
Moisture pick-up5 % at 65 % relative humidity and 20 °C
Resistance to hydrolysisLimited
Acid resistanceLimited
Alkali resistanceGood
Resistance to oxidationGood
Resistance to solventsExcellent

KAYSER FILTERTECH GmbH