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Novel Cure Systems for Natural Fiber Reinforced Thermosets

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Novel Cure Systems for Natural Fiber Reinforced Thermosets

 

In natural fiber reinforced Unsaturated Polyester Resin composites, drying of the natural fiber material is essential to reach proper mechanical properties. When using Cobalt accelerator systems for room temperature cure the cure under moist conditions results in undercure especially at the fiber interface due to inhibition of the cobalt. Non cobalt based, accelerator systems like, copper and iron, were found to be much less prone to water inhibition. Natural fiber composites with undried fibers were prepared with similar mechanical performance and fiber-matrix adhesive strength as for the cobalt system with dried fibers. Furthermore elevated temperature cure of SMC/BMC compounds was possible without pre-drying of the fibers. 

 

Authors: Auke G. Talma,  Roel Zuijderduin,Maartje Steensma,Willem Bottger,Aart W. Van Vuure,Carlos Fuentes Rojas,Rolf Groot

 

Conference: SAMPE Europe Conference 2016

SKU/Code: Euro2016-39

Pages: 13 

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