The mix is the key – metering and mixing systems for composites
September 21st, 2009 | By Angela in Composite production, Exhibitors, Wind Energy Industry | 1 Comment »
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.
Epoxy resins are the elixir for numerous composite applications. They consist of polymers, which together with suitable hardeners produce a duroplastic plastic of high strength and chemical stability. When epoxy resin and hardener are mixed, after a specific time, curing of the originally viscose mixture takes place. Depending on the formulation and temperature, this time span can take a few minutes or may last several hours. In some cases, the curing time may also take several months.
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