ASTM D2000 CA类
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类别 |
ASTM D2000 CA类 |
胶种类型 |
EPDM |
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配方编号 |
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检测项目 |
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A |
测试条件 |
常规物性 |
单位 |
测试方法 |
典型值典型值典型值典型值典型值 |
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23±2°C |
硬度(Hardness) |
邵氏A(Shore A) |
GB/T531 |
40 |
50 |
60 |
70 |
80 |
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拉伸强度(Tensile strength) |
兆帕(Mpa) |
GB/T528 |
11 |
12.5 |
13 |
13.1 |
12.5 |
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扯断伸长率(Elongation at Break) |
% |
726 |
686 |
588 |
537 |
370 |
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M300%定伸应力(300%Modulus) |
兆帕(Mpa) |
3.5 |
4.9 |
7.7 |
8.9 |
10.6 |
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撕裂强度(Tear Strength) |
KN/M |
GB/T529 |
15 |
19 |
20 |
23 |
20 |
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比重(Specific Gravity) |
g/cm3 |
GB/T533 |
1.12 |
1.14 |
1.16 |
1.18 |
1.23 |
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B |
(100°Cx22H x25%) |
压缩永久变形(Compression set) |
% |
GB/T7759 |
45 |
40 |
38 |
37 |
40 |
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C |
热空气老化(Heat aging resistance) |
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125°Cx70H |
硬度变化(Change in hardness) |
邵氏A(Shore A) |
GB/T3512 |
8 |
7 |
6 |
6 |
5 |
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拉伸强度变化率 (Change in Tensile strength) |
% |
-17 |
-16 |
-15 |
-14 |
-18 |
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扯断伸长率变化率 (Change in Elongation at Break) |
% |
-36 |
-33 |
-31 |
-32 |
-31 |
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D |
(40°Cxl20H xSOPPHM x20%) |
耐臭氧性能(Ozone resistance) |
不龟裂 (NO Crack) |
GB/T7762 |
无龟裂 |
无龟裂 |
无龟裂 |
无龟裂 |
无龟裂 |
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E |
(-40°Cx3MIN) |
耐低温脆性(low temperature brittleness) |
<-40°C |
GB/T1682 |
-53 |
-50 |
-45 |
-40 |
-40 |
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