Unidirectional / Multiaxials
Carbon unidirectional fabrics are composed by fibers oriented in a single direction, and then work in a single direction. They differ in the areal weight, corresponding to the specific weight of a square meter of that particular tissue, in the number of filaments that make up the fibers of the fabric and in the nature of the binder yarn in the warp, which can vary between polyester, glue, fiber glass and cotton (excluding UD prepregs which do not have any binder in the warp). In the multiaxials, the fibers are arranged parallel to superimposed layers, oriented in various directions and then sewn with thin filaments to keep them together. These fabrics are available in both simple structures dual-orientation (biaxial) and more complex (quadriaxial).
| Advantages | Types |
|---|
- Oriented fibers
- Excellent weight distribution
- Reduction of break points
- Linearity mechanical characterization
- Wide range stock
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