By Andreas Ferencz, Head of PU
Composites Resins, Henkel.
Henkel has given more details of the physical and processing properties of the polyurethane matrix resin it has developed for resin transfer moulding (RTM).
Henkel believes that this process will speed the production of composite components in the automotive industry with resins that can cure in one minute.
Composite components have become an increasingly important factor in the multi-material designs of modern cars, because they offer lower weight for equivalent performance compared with metal components.
Typically, fibre-reinforced composites in the automotive sector are glass- or carbon-fibre-reinforced. Particularly for mass-produced automobiles, resin injection processes such as epoxy RTM now predominate.
Henkel developed and launched its Loctite Max 2 resins in 2012 (see Urethanes Technology International October/November 2012 p 7). The product is a combination of Henkel’s composite matrix resins expertise and fundamental research on adhesives and surface modification. Henkel says its resin system is a complete and coherent system for the manufacture and integration of composite components in the automobile.
Compared with the epoxy resins normally used for RTM, Loctite Max 2 offers a very attractive combination of good mechanical properties and high…