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Dyneema Composite Fabric (DCF), also known as Cuben Fiber (CTF3), is a high-performance non-woven composite material used in high-strength, low-weight applications. It is constructed from a thin sheet of ultra-high-molecular-weight polyethylene ( UHMWPE , "Dyneema") laminated between two sheets of polyester .
Dyneema and Spectra are brands of lightweight high-strength oriented-strand gels spun through a spinneret. They have yield strengths as high as 2.4 GPa (350,000 psi) and density as low as 0.97 g/mL (0.035 lb/cu in) (for Dyneema SK75). [ 12 ]
Sewn slings have a rated breaking strength of at least 22 kilonewtons (4,900 lb f). Short sewn slings are a component of quickdraws, sometimes known as dogbones. Traditionally, slings have been made of nylon. Increasingly, ultra high molecular weight polyethylene sold under the brand names Dyneema, Dynex and Spectra is used. These have much ...
This technique is mostly used for Dyneema ropes. [8] The principle of a Dyneema eye is a core-to-core splice, in which a length of at least 60 times the diameter of the rope is taken back into itself. DSM advises using 60 times the diameter for coated Dyneema, and 100 times the diameter for uncoated Dyneema. For 6mm coated rope, this would mean ...
Webbing is cut with a hot wire as is nylon rope, which prevents fraying and unravelling. However, when webbing does fray and unravel, the result is less disastrous than with rope, providing a modest advantage. Webbing suffers the drawback of less elasticity than perlon rope, and it may be more difficult to handle with gloves or mittens on. [4 ...
Dyneema, a braided Ultra High Molecular Weight Polyethylene (UHMWPE) line, and the identically structured line, Spectra, are stronger and lighter than Kevlar for a given diameter. One of the most important characteristics of line for high altitude kite flying is small diameter and high strength to weight ratio.
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