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Reasons for using polyurethane material for seawater-proof cable bending restrictor

Reasons for using polyurethane material for seawater-proof cable bending restrictor:
1. Wide range of polyurethane material hardness (Shore A15 ~ D90);
2. The wear resistance of polyurethane material is about 3 to 5 times that of natural rubber, which can fully meet the wear resistance requirements of GJB 973A--2004;
3. Under the same hardness, it has higher bearing capacity than other elastomers;
4. Good low-temperature flexibility, and still have good bending performance at a low temperature of-60 °C;
5. Not affected by ozone erosion;
6. Radiation resistance, with satisfactory performance under the radiation dose of 105 ~ 106 Gy;
7. Polyether polyurethane material has better anti-mold performance, and the anti-mold grade-generally 0~1;
8. Extensive resistance to oil, grease, acid, alkali and other chemicals.
In addition, when using polyurethane materials for marine cable bending limiters, it should be noted that the long-term working temperature of polyurethane sheathing materials-generally cannot exceed 100 °C, otherwise adhesion is likely to occur.
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