试验项目Item | 指 标 specification |
P | G | GL | |
中间织物上面树脂层厚度,mm≥ The
resin thickness of Middle fabric | 0.40 | |
拉伸性能 Tension cap | 最大拉力,N/cm ≥ Maximum
tension N/cm ≥ | 250 | — | 120 | |
拉伸强度,Mpa ≥ Tension strength Mpa≥ | | 10 | | |
最大拉力时伸长率,%≥ Maximum tension elongation | 15 | | | |
断裂伸长率,%≥ Fracture elongation | | 200 | 100 | |
热处理尺寸变化率,%≤ Heat treatment size change rate | 0.5 | 0.1 | 0.1 | |
低温弯折性 Low-temperature bending | -25℃无裂纹 -25℃No craze |
不透水性 Water tightness | 0.3Mpa,2h不透水 0.3Mpa,2hNo seepage |
抗冲击性能 Attack resistance | 0.5kg·m,不渗水 0.5kg·m,No
seepage |
抗静电荷 static charge resistance | 20kg不渗水 No seepage | |
接缝剥离强度,N/mm≥ Seam
peeling strength | 3.0 | |
直角撕裂强度,N/mm≥ right-angle tear strength,N/mm≥ | | 50 | | |
梯形撕裂强度,N≥ Trapezoid tear strength | 250 | | 220 | |
吸水率(70℃ 168h), % Water absorbing apacity(70℃ 168h), % | 浸水后≤ After
soaking | 4.0 |
晾置后≥ air-cure later | -0.40 | |
热老化(80℃) Heat
aging | 时间 time | 672h |
外观 appearance | 无起泡、 裂纹、分层、 粘结和孔洞 No craze, no bubble, no
cohering, hole |
最大拉力(拉伸强度)保持率,%≥ Tensile strength retention | 85 |
伸长率保持率,%≥ Elongation rate of keeping | 80 |
低温弯折性 Cold bending Low temperature bend | -20℃无裂纹No craze No craze |
耐化学性 Chemistry resistance | 外观appearance | 无起泡、 裂纹、分层、 粘结和孔洞 No craze, no bubble, no
cohering, hole |
拉伸强度(最大拉力)保持率,%≥ Tensile strength retention | 85 |
伸长率保持率,%≥ Elongation rate of keeping | 80 |
低温弯折性 Low-temperature
bending | -20℃无裂纹 No craze |
人工气候加速老化 Man-made
climate quicken aging | 时间 time | 1500hb |
外观 appearance | 无起泡、 裂纹、分层、 粘结和孔洞 No craze, no bubble, no
cohering, hole |
拉伸强度(最大拉力)保持率,%≥ Tensile strength retention | 85 |
伸长率保持率,%≥ Elongation rate of keeping | 80 |
低温弯折性 Low temperature bend | -20℃无裂纹 No craze |
a 抗静态荷载仅对压铺屋面卷材。 b 单层卷材屋面使用产品的人工气候加速老化时间为2500h c 非外露使用不要求测定人工气候加速老化。 |
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