5/13/2023 0 Comments Crank and glassIn the early days of graphite epoxy wing skins they were called "black aluminum" until the design technology and the fabrics and prepreg systems advanced to the point of taking advantage of the mechanical properties. Then they are bagged and cured in an autoclave under pressure, heat and a vacuum to pull out all the excess resin to eliminate unused weight and bulk. Then pre impregnated with the resin system that fits the application. The advantage of graphite/epoxy comes from the ability to align the graphite fibers in the direction that the mechanical properties are needed, such as unidirectional, woven fabric, etc. There are many variations of carbon fiber and many types of resins. Typically in the recreation products industry, graphite/epoxy is called "composites" and glass/resin is called "fiberglass" So a rod made from graphite fibers and glass fibers would be a composite but pretty useless unless both were impregnated (prepreg) or wetted out with a resin. Fiberglass isn't a composite until it is wet with a resin, Graphite isn't a composite until it is impregnated with a resin. One example of a composite rod is one made from graphite AND fiberglass.Ĭoncrete is a composite. Composite is not the same thing as fiberglass but it can be made of fiberglass.and something else. Composite is made of more than one material hence “compositeâ€.
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