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Webinar emphasizes Part A urea accelerator use in composites

Zoom  Zoom Issue Date:2016-04-26   Browse:734
CompositesWorld is presenting a CVC Thermoset Specialties-sponsored webinar on May 18 at 1:00 p.m. EDT titled, "Maximizing Lightweight Composites Performance and Production Efficiency: Part A, Urea Accelerators."
Abstract: One-part epoxies are important to many segments for lightweight, high-performance composites. As a curing agent for epoxy resins, dicyandiamide provides one-part formulations with extended room-temperature shelf lives, but the curing reaction becomes very sluggish below 170°C, endangering the efficiency and economy in many applications. Substituted ureas can be used as latent accelerators for dicyandiamide-cured epoxy resins, permitting accelerated curing at low temperatures, while still optimizing important properties, such as shelf life of prepregs and glass transition temperature of final component. Future webinar topics will also discuss other options for maximizing composites performance, such as tougheners and specialty epoxy resins.
Primary topics:
Optimization of epoxy formulations for stronger, lightweight composites
Epoxy chemistries and how they impact end-use performance
Acceleration of cure while extending room-temperature pot life
Maintenance of essential characteristics while optimizing production efficiency
The webinar will be given by Hitesh Soni, Ph.D., epoxies product manager, CVC Thermoset Specialties (Moorestown, NJ, US). Click here to register.
Far 25.853 Fire test to aircraft material – Test method
Vertical flammability test: 14 FAR 25.853 b(4)), (App. F to part 25 part I § (a)
Smoke Density Test: 14 FAR 25.853 (d), (App. F to part 25, part V)
Heat Release Test: 14 FAR 25.853 (d), Appendix F, Part IV
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