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路博润透明耐水解TPU Estane 2103-70A
Density / Specific Gravity | 1.06 | g/cm | ASTM D792 |
Melt Mass-Flow Rate (MFR)(224°C/8.7 kg) | 11 | g/10 min | ASTM D1238 |
Molding Shrinkage | ASTM D955 | ||
Flow | -0.30 to 0.80 | % | |
Across Flow | 0.40 to 0.50 | % | |
| Hardness | Nominal Value | Unit | Test Method |
Durometer Hardness(Shore A) | 72 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
Taber Abrasion Resistance(1000 g, H-22 Wheel) | 3.00 | mg | ASTM D1044 |
| Elastomers | Nominal Value | Unit | Test Method |
Tensile Stress | ASTM D412 | ||
50% Strain, 3.20 mm | 2.10 | MPa | |
*** Strain, 3.20 mm | 3.00 | MPa | |
300% Strain, 3.20 mm | 5.20 | MPa | |
Tensile Strength(Break, 3.20 mm) | 24.7 | MPa | ASTM D412 |
Tensile Elongation(Break, 3.20 mm) | 730 | % | ASTM D412 |
Elongation Set After Break(3.20 mm) | 50 | % | ASTM D412 |
Tear Strength2(3.20 mm) | 66.5 | kN/m | ASTM D624 |
Compression Set | ASTM D395B | ||
25°C, 22 hr | 25 | % | |
70°C, 22 hr | 75 | % |
| Thermal | Nominal Value | Unit | Test Method |
Glass Transition Temperature | -69.0 | °C | DSC |
Vicat Softening Temperature | 75.6 | °C | ASTM D15253 |
CLTE - Flow | 1.8E-4 | cm/cm/°C | ASTM D696 |
TPU在浑浊下耐水性能是良好的，1～2年内不会发生明显水解，尤其以聚醚系列更佳。聚酯系列在50℃的水中浸泡半年或70℃浸泡3周或100℃浸泡3～4天，会完全分解，这是TPU适合作为环保材料的原因之一，需经常性与水接触之产品，则建议使用聚醚系列。一般的塑胶原料长期在70℃以上的环境下容易氧化,TPU抗氧化能力良好;一般而言TPU耐温性可达120℃。
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