Mooring | Materials | Application | Program | Links | ||||||
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Synthetics | Steel | ||||||||
Kevlar |
Polyethylene is an amorphous plastic with relatively low tensile strength. Through gel spinning the crystals achieves a maximum orientation, this give the material a high strength and stiffness (High Modulus Polyethylene). HPME has an extremely low coefficient of friction and is extremely resistant to abrasion. HPME is also prone to cold flow and therefore has a high creep rate.
The polyethylene line for mooring applications is a so-called parallel core construction. This construction consists the core elements and the cover. The core elements are three-strand ropes that are oriented parallel to the longitudinal axis of the rope. The cover provides dimensional stability to the rope structure and protects the cores from external damage. It does not contribute to the strength of the rope.
Because of it's low weight and small diameter a polyethylene deep rope can be transported without special measures. In most cases length is dictated by the use and not by shipping limitations. |
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Dyneema |
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