These new resin systems allow part manufacturers to reduce production cycle times, and make strong parts with excellent durability and resistance to fatigue. Target markets include wind energy, building & infrastructure and marine. Because of their low inherent viscosity and compatibility with multiple fibre sizing types, glass impregnation with Daron 90/B18 and Daron 135/B5 resin systems is straightforward. The curing can take place at room temperature and is fast. Unlike comparable epoxy resin systems, a great through cure can be achieved by applying only a limited post-cure. The Daron 90/B18 and Daron 135/B5 resin systems can give excellent static and dynamic properties both with glass and with carbon fibres. The market for large structural composite parts has been dominated by epoxy resins for their good fatigue resistance (in spite of epoxy processing limitations and part manufacturing inflexibility). Unsaturated polyester and vinyl ester systems do provide significant processing benefits. Now with Daron 90/B18 and Daron 135/B5 resin systems DSM is able to offer the best of both worlds, so parts with great mechanical integrity and fatigue resistance can be made at high speed and low cost. “Composite part manufacturers would like to reduce their cycle times and increase production output,” explained Luuk Groenewoud, new business development manager structural applications at DSM Composite resins. “Through offering these new resin systems, DSM provide a robust solution for making big parts that can operate reliably with a long service life expectation.” www.dsmcompositeresins.com
