Efficient Rovings for Wind Turbine Blades

For wind turbine blade applications, glass fiber yarns and reinforcements producer AGY has made available boron-free S-1 HM™ rovings suitable for both epoxy and polyester resin systems. According to ASTM calculations, in comparison to typical E-Glass products which offer tensile modulus of approx 70-75GPa, the S-1 HM™ rovings exhibit 90GPa tensile modulus of glass fibers, 20% more tensile modulus, 50 and 20% increase in compressive strength and compressive modulus, respectively, and consequently shows fatigue improvement by nearly 10-times. Added length of wind turbine blades allow the turbine to operate at full efficiency, thus reducing the cost of the electricity consumed, and also by and large make the complete wind turbine structure cost effective. The direct roving product form is tailored for standard conversion to unidirectional fabrics and prepregs, and multiaxial fabrics.