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A material added to the matrix to provide the required properties; ranges from short fibres through complex textile complex textile forms.
A material, generally a polymer that has an indefinite and often high molecular weight and a softening or melting range and exhibits a tendency to flow when it is subjected to stress. Resins are used as the matrices to bind together the reinforcement material in composites.
The amount of resin in a laminate expressed as either a percent of total weight or total volume.
Areas of insufficient resin, usually identified by low gloss, dry spots or fibre show.
A moulding process in which catalysed resin is transferred into an enclosed mould into which the fibre reinforcement has been placed; cure normally is accomplished without external heat. RTM combines relatively low tooling and equipment costs with the ability to mould large structural parts.
A process used in spray-up and hand lay-up procedures where the resin and glass reinforcement are compacted to a uniform laminate with rollers.
A number of yarns, strands, tows, or ends collected into a parallel bundle with little or no twist.
When combined, the properties of the composite material is some combination of the properties of the two constituent materials. The composite property equals the amount of the fiber property multiplied by the volume percentage of fibre, plus the amount of matrix property multiplied by the volume percentage of matrix.
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