Water-proof conveyor belt is generally used in the large-scale concrete structures such as dams, reservoirs, basement etc., setting the water-proof conveyor belt inside the seam position for prevent ing water leakage..
Cross section of water-proof conveyor belt:
No.
| Project
| Natural Rubber
| Synthetic Rubber
| 1
| Shore A hardness, degree
| 60±5
| 60±5
| 2
| Tensile Strength Mpa£¬≥
| 18
| 16
| 3
| Snapped elongation %£¬≥
| 450
| 400
| 4
| Snapped elongation
| 70¡æx24h%£¬≤
| 35
| 35
| 23¡æx168h%£¬≤
| 20
| 20
| 5
| Tear strength N/m£¬≥
| 35
| 35
| 6
| Brittle temperature ¡æ≤
| -45
| -40
| 7
| Hot air aging
| 70¡æx72h
| Hardness changes, Shore A, in
| 8
| | Tensile strength rate of change (decrease)%≤
| 10
| | change rate of elongation (decrease)%≤
| 20
| | 70¡æx96h
| Hardness changes, Shore A, in
| | 8
| Tensile strength rate of change (decrease)%≤
| | 10
| Elongation rate of change (decrease)%≤
| | 20
| 8
| Ozone aging50pp 20% 48h
| grade 2
| grade 0
|
|
