The navigation mark comprises a buoy body, the buoy body comprises a protective shell located on the outer side, a floating body is arranged in the protective shell, and a high-density polyethylene protective layer is arranged between the exterior of the floating body and the inner wall of the protective shell. The floating body is a polyurethane layer. And the protective shell is a low-density polyethylene layer. The cable is simple in structure, and the protective shell is a low-density polyethylene layer and has good flexibility, extensibility, electrical insulating property, certain air permeability, good chemical stability, alkali resistance and common organic solvent resistance. The high-density polyethylene protection layer is arranged between the exterior of the floating body and the inner wall of the protection shell, and the high-density polyethylene protection layer is high in stretchability and creep property, small in permeability to water vapor and air, low in water absorption and capable of adapting to thermal expansion and cold contraction of the polyurethane floating body.
本发明公开一种具备保护层的航标,包括浮标主体,所述浮标主体包括位于外侧的保护壳,所述保护壳内设有浮体,所述浮体外和所述保护壳内壁之间设置高密度聚乙烯保护层。所述浮体为聚氨酯层。所述保护壳为低密度聚乙烯层。本发明结构简单,保护壳为低密度聚乙烯层,具有良好的柔软性、延伸性、电绝缘性、一定的透气性,其化学稳定性能较好,耐碱、耐一般有机溶剂。本发明在浮体外和所述保护壳内壁之间设置高密度聚乙烯保护层,其拉伸性和蠕变性较强,对水蒸气和空气的渗透性小,吸水性低,可适应聚氨酯浮体的热胀冷缩。
Navigation mark with protective layer
一种具备保护层的航标
2024-03-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
Europäisches Patentamt | 2024
|Europäisches Patentamt | 2020
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