Fibre Glass Raw Materials and Manufacture

Presented by Shafaq Gillani and Usman Arshad

M.Phil.

1/9/2015 Institute of chemistry 1

Fibre Glass raw materials

Raw material Chemicals Use

Sand Silica, alumina, iron oxide Glass former

Albite, Feldspar Alumina, iron oxide,TiO2 Composite forming,brittle

Zinc Oxide ZnO Chemical resistance

Barium carbonate BaCO3 , SrCO3 Chemical resistance

Flourospar CaF2 ,Fe2O3 ,Al2O3, MgO Melt viscocity control

Sodium sulfate Na2SO4 Refining agent, Surfactant, oxidising agent

Cullet Silica, alumina, iron oxide Decrease the use of sand, limestone

Limestone CaCO3 Melting point lowering

Soda Ash Na2CO3 Impurity

Diopside CaMgSi2O6 Fasten melting reactions

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Manufacture

• Melting.

• Removal ofgas inclusions.

• Homogenization.

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• Heated bushing controls sizing

• Applicator maintains thin film

• Strand integrity ,lubricity resin compatibility

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• Traverse to winding ratio

• Package stability, strand properties, ease of pay out.

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