D-Encapsulant 电缆填充剂
描述
Vertellus D-Encapsulant 是一种双组分弹性聚氨酯化合物，用于光纤、铜缆等电缆灌封填充。该产品粘度低、可操作时间长，形成有效的水阻隔。其优异的柔韧性、电气性能
和长期稳定性，有效延长产品使用寿命。特别适用于对电气设备的长期保护。
典型特性
在室温下一周后固化，可以 60℃18 小时或者 80℃6 小时加速固化。以下是供参考
的固化后测试结果:
工艺性能
| Viscosity(at 25 C, ASTM D-2393) |
| Vorite®715-M1 | 130 cP. |
| Polycin®934-M4 | 315 cP. |
| Specific Gravity(ASTM D-1875) |
| Vorite®715-M1 | 1.008 |
| Polycin®934-M4 | 0.894 |
| Mix Ratio(Vorite®715-M1/Polycin®934-M4) |
| By weight | 17/83 |
| By volume | 15/85 |
| Mixed Viscosity(at 25 C) | 300 cP. |
| ASTM D-2393 |
| Gel Time(at 25 C, 100g) | 17-20 hours |
| CC-410 |
| Hardness(Shore OO) | 55 |
| ASTM D-1484 |
| Peak Exotherm(100g mass) | 32 C |
| ASTM D-2471 |
| Shrinkage on Curing | 0.5% |
| ASTM D-2566 |
| Tensile Strength | 25 psi |
| ASTM D-412 |
| Elongation | 130% |
| ASTM D-412 |
| Tear Strength | 5 pli |
| ASTM D-624 |
| Young's Modulus of Elasticity | 33 psi |
| ASTM D-638 |
| Compression Modulus | 22 psi |
| ASTM D-695 |
| Brittleness Temperature | < -50 C |
| ASTM D-746 |
| Thermal Conductivity | 0.718 Btu in/hr ft2 F |
| ASTM C-177 |
| Thermal Expansion | 5.4 x 10-5 cm/cm C |
| ASTM D-696 modified |
电气性质
| Dielectric Constant(1 KHz) | 3.3 |
| ASTM D-150 |
| Dissipation Factor(1 KHz) | 0.04 |
| ASTM D-150 |
| Volume Resistivity(ohm-cm) | 7 x 1013 |
| ASTM D-257 |
| Insulation Resistance | 2 x 1013 ohms |
| Telcordia MS17000 |
稳定性特性
| Moisture Absorption |
| 168 hrs, 24 F water | 0.1% |
| Hydrolytic Stability(168 hrs, boiling water) |
| Weight change | +0.5% |
| Hardness change (Shore OO) | - 5 |
| Dry Heat Aging(500 hrs, 100 C) |
| Weight change | -4.0% |
| Hardness change (Shore OO) | 0 |
| Insulation Resistance | 1.2 x 1010 ohms |
| 675 hrs, 35 C/95% RH |
| Hydrogen Generation | 0.37 l/g |
| 48 hrs, 176 F (GC/MS) |
| Component Flash Point(ASTM D-3828) |
| Vorite 715-M1 | > 200 C |
| Polycin 934-M4 | > 218 C |
| Component Pour Point(ASTM D-197) |
| Vorite 715-M1 | -36 C |
| Polycin 934-M4 | -34 C |
性能属性
| Corrosion of Copper | non-corrosive |
| Telcordia MS-17000 |
| Fungus Resistance | 0 growth |
| ASTM G-21 |
| Volumetric Expansion | 0% |
| Telcordia TR-NWT-000354 |
| Water Sensitivity(Expansion) | 0% |
| Telcordia TR-NWT-000354 |
| Polyethylene Stress-Cracking | Passes |
| Telcordia MS17000 |
| Polycarbonate Stress-Cracking | Passes |
| Telcordia TR-NWT-000354 |