Fiberglass

Fiberglass, as the name suggests, is a material that is made from delicate fibers of glass

. It is a composite material that is used as a reinforcing agent for various polymer products. The fiberglass that is known to us today was invented in 1893. It is formed with the extrusion of thin strands of silica into many tiny fibers with small diameters enough to qualify for textile processing. There are many types of fiberglass of which the E-glass is the most widely used. Other types include the A-glass, E-CR- glass, C-glass, D-glass R-glass and S-glass. E-glass is used for glass-reinforced plastics (a composite material that is made of plastic but reinforced by glass fibers). Glass fibers are highly preferred for usage owing to their high ratio of surface area to weight. This high ratio of surface area makes them more vulnerable to chemical reactions or attacks. The most thinnest and freshly made glass fibers are the strongest because of their ductile characteristic. It follows the simple principle of the more that surface is scratched, the less the tenacity or perseverance. The chemistry of the fiberglass is the same with the equality in chemical properties along the fiber and across the fiber. The glass fibers and glass mouldings can be affected by moisture as it is easily absorbed and can also destroy the tiny cracks and defects on the surface and thereby lessen the tenacity. The resistance of the molten glass to shear forces is of great importance for manufacturing success. The resistance should be relatively low during drawing or pulling the glass to reduce fiber circumference. The group mouldings of fiber glass that results after stages of chemical processes may be used in mats, thermal insulation, electrical insulation, heat and corrosion-resistant fabrics, reinforcement of various materials, sound absorption, high strength fabrics, pole vault poles, arrows, tent poles et cetera.

by: Gerry Dossen

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