glass fibers 1-8-08 - Glass Fibers Douglas J Gardner...

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1 Glass Fibers Douglas J. Gardner Professor Wood-Polymer Hybrid Composites Glass Fiber Manufacture
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2 Glass Raw Materials More than half the mix is silica sand, the basic building block of any glass. Other ingredients are aluminum,calcium and magnesium oxides, and borates. Some countries use basaltic (volcanic) glass Furnace The temperature is so high > 1600 °C that the sand and other ingredients dissolve into molten glass. The inner walls of the furnace are lined with special "refractory" bricks that must periodically be replaced.
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