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= Useful Materials =

Fibreglass
Task:

After reading the information in your text and below...
 * 1) Draw a labelled diagram explaining how layering is used to give fibre-glass strength.
 * 2) Explain where fibreglass was first used and why
 * 3) How did this use differ from the use of fibre-glass today? Give five examples of its use today.
 * 4) Why is fibre-glass used to reinforce polymers, such as fibre-glass resin? Use the word thermosetting plastics in your answer.
 * 5) Some manufacturers incorporate other fibres into high performance fibre-glass objects. Carbon-fibre and Kevlar are two examples of this. How do the properties of carbon-fibre and kevlar differ from ordinary fibre-glass?
 * 6) Explain some of the safety concerns surrounding the use of fibre-glass?
 * 7) Show what you can do to avoid the discomforts or health risks of fibre-glass. (Pictures :-))

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==The ancient Egyptians used glass fibers, incorporating them into vases and containers as decorative trim by winding the glass around a core of glazed clay. Butfiberglass manufacture on a large scale did not take place until the twentieth century. The first modern technique for makingfiberglass was patented in 1836 by Dubus-Bonnel of France, who wove hot glass strands on a Jacquard-type loom. == What is commonly known as "fiberglass" today, however, was invented in 1938 by [|Russell Games Slayter] of [|Owens-Corning] as a material to be used as [|insulation]. It is marketed under the trade name **Fiberglas,** which has become a [|genericized trademark]. A somewhat similar, but more expensive technology used for applications requiring very high strength and low weight is the use of [|carbon fiber]. (Source: Wikipedia )
 * Fiberglass**, ([|also called] **fibreglass** and **glass fibre**), is material made from extremely fine [|fibers] of [|glass]. It is used as a reinforcing agent for many [|polymer] products; the resulting [|composite material], properly known as [|fiber-reinforced polymer] (FRP) or [|glass-reinforced plastic] (GRP), is called "fiberglass" in popular usage. Glassmakers throughout history have experimented with glass fibers, but mass manufacture of fiberglass was only made possible with the invention of finer machine tooling. In 1893, [|Edward Drummond Libbey] exhibited a [|dress] at the[|World's Columbian Exposition] incorporating glass fibers with the [|diameter] and texture of [|silk] fibers. This was first worn by the popular stage actress of the time [|Georgia Cayvan].

How to make a fibre-glass surf-board
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how to make a fibre-glass subwoofer
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Fibre-glass insulation
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