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3B is launching HiPer-tex W2020 high performance roving to satisfy OEMs’ needs for longer and lighter rotor blades to meet the offshore and onshore multi-megawatt wind turbines.
Building upon the recently developed sizing technology applied to Advantex SE2020, 3B say the new HiPer-tex W2020 is also specifically engineered for epoxy polymer systems used in resin infusion or prepreg processes.
3B explain how they deliver a high modulus glass with outstanding mechanical properties providing significantly greater strength and strain-to-failure than traditional E-glass. They say the new HiPer-tex W2020 roving offers the following properties in a typical unidirectional laminate (average glass volume fraction 60%):
“HiPer-tex W2020 provides the answer to the evolving market requirements for stiffer and better performing materials. Its optimized glass composition combined with proprietary sizing technology for epoxy systems allow turbine manufacturers to increase blade lengths while keeping blade weight under control. These longer blades generate higher turbine efficiency leading to a lower cost per kWh,” says Luc Peters, 3B Wind Energy Technical Product Manager.
3B claim that when comparing blades manufactured with traditional E-glass, HiPer-tex W2020 achieves up to 10% weight saving for the same blade design and length. Alternatively, the blade length can be extended by up to 6% while maintaining the same weight but offering up to 12% more energy output. They say it offers better wet-out therefore a more consistent laminate quality. The improved resin matrix adhesion provides higher shear strength and substantially greater inter-fibre strength when compared with existing high modulus fibre glass in the market place.
According to 3B, these attributes, together with the fatigue performance, good hydrolysis and the inherent corrosion resistance due to the boron-free glass formulation, makes the new HiPer-tex W2020roving the benchmark solution that designers need to improve existing rotors and, more importantly, to help create the next generation of epoxy blades for offshore and onshore wind turbines.
Onur Tokgoz, 3B Wind Energy Global Business Leader said “3B is collaborating with the whole value chain in the wind industry sector to bring to market new cost competitive and high performance reinforcements which further pushes the limits of glass fibre rotor blade designs.”
Tokgoz goes on to say, “Aligned with 3B’s strategy to be the wind energy solution provider we are contributing to the reduction of the cost of energy with this important addition to our new benchmark series of products. 3B is keen to lead the development of new glass reinforcement solutions to support and enable the growth of multi-megawatt wind turbines.”
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