Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Micrograph Library Full Record for Micrograph 596

Full Record for Micrograph 596

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Micrograph no
Brief description
Glass-fibre reinforced polymer
alignment, composite material Link to MATTER Glossary entry for composite material, fibre Link to MATTER Glossary entry for fibre, glass Link to MATTER Glossary entry for glass, glass fibre reinforced composite, glass fibres Link to MATTER Glossary entry for glass fibres, injection moulding Link to MATTER Glossary entry for injection moulding, polymer Link to MATTER Glossary entry for polymer, polymer composite, polypropylene (PP), thermoplastic, toughness Link to MATTER Glossary entry for toughness
Composite, Polymer, Polymer composite
Polypropylene (PP)
Polypropylene with 15% glass fibres
Standard codes
Injection moulding
Short fibre reinforced thermoplastics are mouldable but the fibres confer greater toughness and stiffness upon them. This micrograph is a cross-section of the handle of a gas lighter.
Sample preparation
Reflected light microscopy
Length bar
400 μm
Further information
15 vol % of short glass fibres are intimately mixed with the polypropylene matrix and injection moulded together. The fibre orientation reflects the flow of material into the mould. In this case, the fibres are well aligned in the outer layers of the moulding but more randomly aligned near the core.
J A Curran
Department of Materials Science and Metallurgy, University of Cambridge
Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales