序号 | 项 目 | 指 标 | | | | | |
PVC | PE | EVA | ECB | TPO | | | |
1 | 断裂拉伸强度,Mpa | ≥10 | ≥14 | ≥16 | ≥14 | ≥18 | |
2 | 扯断伸长率,% | ≥200 | ≥400 | ≥550 | ≥500 | ≥600 | |
3 | 不透水性,30min无渗漏 | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa | |
4 | 剪切状态下的粘合性,N/mm | 3.0或卷材破坏 | | | | | |
5 | 低温弯折性,℃ | -20℃ | -25℃ | -35℃ | -35℃ | -40℃ | |
6 | 剪切性 (N/㎜) | 卷材与卷材 | ≥1.5 | ≥1.5 | ≥1.5 | ≥1.5 | ≥1.5 |
卷材与铝板 | ≥3.0 | ≥3.0 | ≥6.0 | ≥6.0 | ≥6.0 | | |
7 | 剥离性能,N/㎜ | ≥1.5 | ≥1.5 | ≥2.0 | ≥2.0 | ≥3.0 | |
8 | 热气老化处理 | 断裂伸长率变化率,% | 70 | 80 | 80 | 80 | 80 |
9 | 臭氧老化 | 伸长率20%,200 | 无裂纹 | | | | |