Polypropylene needle punched felt for liquid filtration
The PP needle punched felt, which used in liquidsolid filtration, selects different specifications of PP fibers and ordinary staple scrim or high strength filament scrim. That grams differe nt from 350g/m2~700g/m2 and thickness different from 1.2mm~4.5mm all can be produced in our company, and can be divided into different widths. The post finished treatment includes singeing, calendaring etc.
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| STANDARD SPECIFICATION |
| ITEM NO（Filtration Micron） |
PP-1 |
PP-5 |
PP-10 |
PP-25 |
PP-50 |
PP-100 |
PP-200 |
| COMPOSITION |
100% POLYPROPYLENE |
| WEIGHT（g/sq.m） |
420±20 |
370±20 |
370±20 |
380±20 |
380±20 |
450±20 |
450±20 |
| THICKNESS（mm） |
1.7±0.2 |
1.8±0.2 |
1.8±0.2 |
1.8±0.2 |
1.9±0.2 |
2.4±0.2 |
2.4±0.2 |
| AIR PERMEABILITY（cc/cm2/sec） |
20±5 |
30±5 |
50±10 |
80±10 |
100±10 |
120±20 |
150±20 |
| BREAKING STRENGH （Kg/5cm） |
warp |
90±20 |
110±20 |
100±20 |
90±20 |
80±20 |
70±20 |
60±20 |
| weft |
90±20 |
110±20 |
100±20 |
90±20 |
80±20 |
70±20 |
60±20 |
| ELONGATION AT MAXBREAKING STRENGTH（%） |
Warp |
80±10 |
60±10 |
70±10 |
80±10 |
90±10 |
70±10 |
60±10 |
| Weft |
50±10 |
70±10 |
70±10 |
70±10 |
90±10 |
100±10 |
100±10 |
| Bursting strength（Kg/cm2） |
55±5 |
40±5 |
35±10 |
30±5 |
35±5 |
30±5 |
35±5 |
| Operating Temperature（℃） |
90（Dry Heat） |
| Max Surge Temperature（℃） |
110（Dry Heat） |
| Finish |
One side singed |
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| Remark: It is Liquid micron Felt .PP-1 ,PP-5 is means the filtration micron to be 1 mircron ,5 micron etc | |