General Properties Procon polyphenylene sulphide (PPS) is based on a fully aromatic, halogen free, semi crystalline polymer which shows excellent thermal and chemical properties. The polymer melts at 285 °C and provides a glass-transition temperature of 85 °C , the fibres can be used up to 190 °C depending on the environment.
Procon exhibits inherent flame resistance which is described by the high limiting oxygen index of 40 %. As with most aromatic polymers the UV resistance is poor.
Chemical Resistance Procon PPS in general shows excellent chemical properties and is almost insoluble in organic solvents up to 200 °C. The polymer and the fibres are only affected by strong mineral acids like concentrated sulphuric and nitric acid or strong oxidizing environments.
Fibre Properties
- Round and trilobal fibre cross section available
- The natural colour is beige
| Textile Data |
|
Parameter
|
Test Method
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Value
|
|
Tenacity
|
|
43 cN/tex
|
|
Elongation at Break
|
|
34,5%
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|
Shrinkage at 180°C 30 min
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30 min. 180°C / 356°F
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<3,5%
|
|
Limiting Oxygen Index (LOI)
|
|
40%
|
|
Melting Point (Tm)
|
DSC
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285 °C
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|
Density
|
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1,34 g/cm³
|
Filtration Properties
- Especially the trilobal shaped fibre type has a higher surface area compared to other round shaped fibres
