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Henkel’s aerospace group has launched Epsilon 99100, a benzoxazine RTM/VARTM resin system, optimized for aerospace applications.
Henkel say that this innovative technology is an efficient and effective alternative to the epoxy chemistry. Epsilon 99100 significantly enhances mechanical performance and durability, while lowering the costs associated with composite structure during manufacture and service.
Epsilon 99100 represents the first of a family of aerospace composite resin systems which will be introduced in 2008. Epsilon 99100 is stable at ambient temperatures for over a year as a one-part resin and , according to Henkel, features include:
• Broad processing window – great for large parts and intricate shapes
• Viscosity stability – long injection window for large parts
• Low heat release during cure – allow for manufacture of large parts, lowers residual stresses
• Low cure shrinkage – improved translation of strength in final part
• Fire retardant – suitable for aircraft fuselage and interior applications
• High hot/wet property retention – higher service temperature to enable a wide range of aircraft applications
• Improved UV resistance – no discoloration compared to epoxies
• Good thermal resistance – acceptable for high temperature areas
Additionally, this 180°C cure resin system provides a combination of properties including hot/wet glass transition temperature at 165°C, high toughness, high compressive strength and modulus, good solvent resistance and FST properties.The Epsilon benzoxazine family of resins has a unique orange colour.
“Epsilon 99100’s wide range of applications will revolutionize aircraft composite assemblies as a result of its unique combination of benefits as a structural composite resin”, said Raymond Wong, vice president of technology, Henkel. “This innovation is a result of Henkel’s commitment to developing new and innovative cost-effective technologies for our customers.“
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