Cut fibers : continuous fibers having been worked on a chopper with guillotine. The obtained lengthes are controled.
Technical fibers
CALIBRATED ÉCRU POLYPROPYLEN
1- FIBER: |
|
| Synthetic fiber | (CH2CHCH3)n |
PHYSICAL PROPERTIES: |
|
| Reaction to the heat | Averagely flammable - Plasticizes towards 150/155°C - Point of fusion towards 170/175°C |
| Resumed in humidity (%) : (25°C. - 65% H.R.) | 2 |
| Resistance in the UV | Average |
| Specific density (g/cm3) | 0,91 |
MECHANICAL PROPERTIES: |
|
| Dry tenacity (cN/Tex) | 22 - 55 |
| Wet tenacity (cN/Tex) | 27 - 40 |
| Dry elongation (%) | 40 - 250 |
| Wet elongation (%) | 70 - 180 |
CHEMICAL PROPERTIES: |
|
| Resistance to acids | Very strong |
| Resistance to bases | Very strong |
| Resistance to solvents | Very strong |
| Resistance to micro-organisms | Very strong |
| Resistance to oxidizers | Very strong |
| Sensitive to | Aromatic compounds - Dissolution with high temperature in chlorinated solvents |
2- PRODUCTS: |
|
| Diameter of fibers (dTex) | 2,2 - 2,8 - 3,3 - 6,7 - 17 |
| Diameter of fibers (microns) | 17,5 - 19,8 - 21,5 - 30,6 - 48,7 |
| Lenghtes of fibers (mm) | 0,5 to 6 |
| Possible physical treatments | Control of the humidity rate - Defibrement |
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