|
|
|
 |
|
|
|
|
needlona® – needle felts
needlona® is our product group for high-quality needle felts. They are usually made from synthetic fibres and a scrim. BWF Envirotec, as the worldwide market leader, offers needle felts which are made from all types of fibres and scrims currently available on the market. The scope of supply ranges from standard needle felts for low temperature applications to high-tech products for high temperature applications. In the following table you will find an overview of the available types as well as their characteristic properties.
|
|
Fibre Type:
|
Continuous
operating temp.
(Maximum)
|
)
|
BWF
data
|
|
Resistance
to Hydrolysis
|
|
Resistance
to Acids
|
|
Resistance
to Alkalis
|
|
Resistance
to Oxidation
|
|
Polypropylene
|
90 °C / (95 °C)
|
PP
|
1
|
1
|
1
|
4
|
|
Polyamide
|
110 °C / (115 °C)
|
PA
|
4
|
3
|
2
|
3
|
|
Polyacrylonnitrile copolymer
|
115 °C / (120 °C)
|
AC
|
2
|
3
|
3
|
2
|
|
Temperature resistant Olefin
|
125 °C / (135 °C)
|
RO
|
1
|
1
|
1
|
4
|
|
Polyacrylonnitrile homopolymer
|
125 °C / (140 °C)
|
DT
|
2
|
2
|
3
|
2
|
|
Polyester
|
150 °C / (150 °C)
|
PE
|
4
|
3
|
4
|
2
|
|
Polyphenylensulfide
|
190 °C / (200 °C)
|
PPS
|
1
|
1
|
1
|
3
|
|
m-Aramide
|
200 °C / (220 °C)
|
NO, NX
|
3
|
3
|
3
|
3
|
|
Polyamide® -Imide
|
200 °C / (220 °C)
|
KMT
|
4
|
3
|
4
|
3
|
|
Polyimide
|
240°C / (260 °C)
|
PI
|
2
|
3
|
3
|
2
|
|
Polytetrafluor- ethylene
|
250 °C / (280 °C)
|
PTFE, TF, TFL
|
1
|
1
|
1
|
1
|
|
1 = excellent, 2 = good, 3 = moderate, 4 = restricted
|
All needle felts can be combined with the finishes of BWF Envirotec. The surface and protective treatments significantly extend the service life as well as the mechanical and chemical resistance of the needle felt.
For more information on our products and their areas of application, please contact our sales department or your local BWF Envirotec sales representative. |
|
|
|
|
