DowAksa offers a variety of solutions for reinforcing structures in the infrastructure, transportation and wind energy markets.
Non-Crimp Fabrics CF / Multiaxial Fabrics
Commonly used as a reinforcement within composite structures, multiaxials (MAs) or non-crimp fabrics (NCFs), as they are known, effectively allow composite manufacturers to process multiple layers of unidirectional fibers in a single fabric. The reinforcing fibers can be placed in different axes to optimise the performance of the finished laminates. MAs deliver higher tensile and flexural properties in the laminates compared to woven fabrics. The straight, uncrimped fibers within a multiaxial form allow good resin penetration and flow, which is ideal for infusion or RTM, whilst the stitching aids resin migration through the layers for maximal infusion rates. Prepregging of such fabrics is commonly used in the wind, marine, automotive and aviation industries.
Woven fabrics, used as a reinforcement within composite structures, low aerial weights and 3K woven fabrics, are commonly used to provide good surface penetration and aestethic touch to composite components. The reinforcing fibers are placed in 0° (zero degree) and 90° (ninety degree) bi-axial directions to optimise the performance of the finished laminates with 3D construction. Woven fabrics deliver lower tensile and flexural properties in the laminates compared to multiaxial fabrics. The unstraight, crimped fibers within a 3D form allow good surface penetration due to the lower gap between each positioned fiber on the weft and warp sections. Hand laying, RTM, infusion and prepregging of such fabrics are commonly used in the sporting goods, aviation, marine and automotive industries.