COMPOSITES EUROPE 2012 Blog

Every movement must be just right when the blade and rotor hub of a wind turbine are married together at a dizzy height.  Because screwing the rotor blade onto the rotor hub 100 metres above the ground represents a major bonding technology challenge. Heavy-duty threaded bushes are bonded into the fibre-reinforced flange on the blade holder of each blade – and the bond must be absolutely rock solid.

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The wind energy industry is one of the most important customers for composites; at the same time the greatest challenges are made here on the load-bearing capability of the fibre reinforced plastics. Consequently, not only the right raw materials but also their specific blend is a major precondition for use in wind energy.

The industrial production of the enormous blades would be impossible to achieve without the use of technical plastics. Production of the models or the moulds for constructing the rotor shells or the rotor blades as such would be impossible. Even the adhesion of the upper and lower shell would be virtually impossible to achieve.

Two-component metering and mixing systems are required so that the right mixture of epoxy and polyurethane resins as well as modelling and adhesive pastes can be used. A reputable manufacturer of this processing technique is Tartler GmbH from Lützelbach, which will demonstrate its competencies at the COMPOSITES EUROPE trade fair, which will take place from 27 to 29 October 2009 in Stuttgart.

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