Completely hard – thanks to epoxy resin
September 14th, 2009 | By Angela in Aerospace Industry, Composite production, Exhibitors, Innovation | No Comments »
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.
The Krempel-Group, from Vaihingen, offers with the BD system, prepregs that are based on modified epoxy resins with high impact resistance and excellent dynamic properties. These can be processed into high strength structural components with all standard processes. The curing range is between 85 and 140 degrees Celsius, the maximum dimensional stability under heat is 125 degrees Celsius.
The experts of the AVK – Industrievereinigung Verstärkte Kunststoffe e.V. forecast an annual double-digit percentage growth rate for natural fibre reinforced plastics as well as for wood-plastic composites (WPC). The reasons for this are the aspects of energy saving during production and the associated reduction in carbon dioxide.
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