Tests carried out at the German industrial group’s windpower competence center in Otterup, Denmark, suggest the freer-flowing resins– liquids drawn through laminates of fibre-glass in a mould to formcomposite blades – spread more evenly, more quickly, and harden faster thancurrent versions, potentially cutting blade manufacture cycle time from 16-24hours down to seven to eight hours.
The finished rotor blades “are sturdier, longer-lastingand more lightweight than those produced with the epoxy resins and unsaturatedpolyesters used previously”, claims the company.
“We
