| Properties
General Properties
Because of the uniform polymer structure Dolanit in general show good mechanical characteristics. The high molecular weight of the Dolanit polymer ensures a higher thermal stability compared to conventional textile acrylic fibres. Continuous temperatures of 125 °C with peaks up to 150 ° are applicable in high temperature filtration depending on gas composition.
Dolanit starts to decompose at 330 °C before reaching the melting point at 350 °C.
There is a good resistance against hydrolysis and the fibres show an excellent stability against UV.
Chemical Properties
Dolanit fibres are resistant to resistant against solvents like alcohols, chlorinated or aromatic hydrocarbons. They are soluble in high polar aprotic solvents like dimethylformamide,. dimethylacetamide or ethyl carbonate.
There is a good stability against organic and inorganic acids with the exception of high concentrated acids with strong oxidising power like sulphuric acid or nitric acid.
A good resistance is observed against alkalis. Dolanit fibres retain more than 90 % tenacity after exposure to aqueous caustic soda solution of pH 13 at 80 °C.
Fibre Properties
The surface structure, crimp and friction properties ensure a good processability with carding, needle punching and spinning. Compared to other homopolymer acrylic fibres Dolanit shows the highest tenacity values leading to higher yarn and fabric strength.
- The fibre cross section is kidney shaped
- The lustre is bright
| Dolanit Staple Fibre (2,2dtex) Typical Textile data |
|
Parameter
|
Value
|
Note
|
|
Density [g/cm³]
|
1,18
|
|
Tenacity [cN/tex]
|
60-70
|
|
Elongation at break [%]
|
15-20
|
|
Hot Air Shrinkage [%]
|
1,5-2,0
|
at 180 °C, 5 minutes
|
|
Moisture regain [%]
|
2,0
|
65% relative humidity, 20 °C
|
|
Inspec Fibres 
DOLANIT® 
Properties 
