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TDS of N-type membrane(Standard GB23441-2009) | |||||||
S/N | Item | Index | |||||
PE | PET | D | |||||
I | II | I | II | ||||
1 | Tensile Strength | Tensile | ≥150N/50mm | ≥200N/50mm | ≥150N/50mm | ≥200N/50mm | - |
Elongation at maximum tension | 200% | 30% | - | ||||
Asphalt elongation at break | 200% | 150% | 450% | ||||
Stretching phenomenon | During the stretching process, there is no separation between the asphalt coating and the film before the film breaks. | - | |||||
2 | Nail tear strength | ≥60N | ≥110N | ≥30N | ≥40N | - | |
3 | Heat resistance | 70℃, slid no more than 2mm | |||||
4 | Low temperature flexibility | -20℃ | -30℃ | -20℃ | -30℃ | -20℃ | |
No crack | |||||||
5 | Impermeability | 0.2Mpa, 120min; Impermeable | - | ||||
6 | Peel strength | With other membrane | ≥1.0 N/mm | ||||
With aluminum sheet | ≥1.5N/mm | ||||||
7 | Nail rod water tightness | Qualified | |||||
8 | Water permeability/number of sheets | ≤2 | |||||
9 | Continuous stickiness | ≥20min | |||||
10 | Thermal aging | Rally retention rate | ≥80% | ||||
Maximum tensile elongation | ≥200% | ≥30% | ≥400% | ||||
Low temperature flexibility | -18℃ | -28℃ | -18℃ | -28℃ | -18℃ | ||
No crack | |||||||
Peel strength between membrane and aluminum palte | ≥1.5N/mm | ||||||
11 | Thermal stability | Appearance | Without drum, folding, sliding, flowing | ||||
change in size | ≥2% |
TDS of PY-type membrane(Standard GB23441-2009) | |||||
No. | Item | Index | |||
I | II | ||||
1 | Soluble content | 2.0mm | 1300 | - | |
3.0mm | ≥2100 g/m2 | ||||
4.0mm | ≥2900 g/m2 | ||||
2 | Tensile strength | Tensile | 2.0mm | ≥350N/50mm | - |
3.0mm | ≥450N/50mm | ≥600N/50mm | |||
4.0mm | ≥450N/50mm | ≥800N/50mm | |||
Elongation at maximum tension | ≥30 | ≥40 | |||
3 | Heat resistance | 70℃, without sliding, flowing, dripping | |||
4 | Low temperature flexibility | -20℃ | -30℃ | ||
No crack | |||||
5 | Impermeability | 0.3Mpa, 120min, qualified | |||
6 | Peel strength | With other membrane | ≥1.0N/mm | ||
With aluminum sheet | ≥1.5N/mm | ||||
7 | Nail rod water tightness | Qualified | |||
8 | Oil permeability/number of sheets | ≤2 | |||
9 | Continuous stickiness | ≥15min | |||
10 | Thermal aging | Maximum tensile elongation | ≥30% | ≥40% | |
Low temperature flexibility | -18℃ | -28℃ | |||
No crack | |||||
Peel strength between membrane and aluminum plate | ≥1.5N/mm | ||||
Dimensional atability | 1.5% | 1.0% | |||
11 | Self-adhesive asphalt peel strength | ≥1.5N/mm |
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