Webinar: The Future of Thermoset Testing: A Look at the Latest Developments by Gardner Business Media, Inc. Webinars

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About This Webinar

Composite systems consist of two sub-constituents: woven fibers as the reinforcement element and resin as the matrix. The most commonly used fibers are glass and carbon, which can be processed in plane or satin structures to form woven fabrics. Carbon fibers, in particular, are known for their high strength/weight properties. Thermoset resins, such as epoxies and polyurethanes, are used in more demanding applications due to their high physical-mechanical properties.

However, composites manufacturers still face the challenge of designing the right cure cycles and repairing out-of-shelf-life parts. To address these issues, Alpha Technologies proposes using the encapsulated sample rheometer (premier ESR) to determine the viscoelastic properties of thermosets. Premier ESR generates repeatable and reproducible analytical data and can measure a broad range of viscosity values, making it ideal for resins such as low viscous uncured prepreg or neat resins as well as highly viscous cured prepregs. During testing, before cure, cure and after cure properties can be detected without removing the material from the test chamber. Moreover, ESR can run a broad range of tests, from isothermal and non-isothermal cures to advanced techniques such as large amplitude oscillatory shear tests.

During this webinar, Alpha Technologies will be presenting some of the selected studies that were completed on epoxy prepreg systems utilizing ESR and how it solves many issues in a fast and effective way. It will highlight the advantages of this technique that were proven with the work of several researchers. Moreover, Alpha Technologies will display part of these interesting findings using the correlations between the viscoelastic properties such as G’ and mechanical properties such as short beam shear strength (SBS).

Presented by:

Presenters

Berrin Degirmenci

Applications Specialist

Berrin Degirmenci works has been the application development engineer for Europe, the Middle East and Asia at Alpha Technologies in Italy since April 2023. She received her Ph.D. in polymer science and technology from Istanbul Technical University in collaboration with the University of Bologna in March 2023. Prior to joining Alpha Technologies, Berrin worked for Dow Chemical in various roles ranging from technical sales engineer, applications engineer, and polyurethane industrial components technology leader for Europe, the Middle East, Asia, and India. Prior to Dow, she held the roles of product specialist and industrial sales manager with Zorlu Holding and Total Oil in Turkey.

Lou Dorworth

Direct Services Manager, Abaris

Lou Dorworth has over 40 years of experience in the aerospace composites industry. He has a solid background in composite research and development and material and processing engineering as well as teaching related subjects. He is the direct services division manager at Abaris Training Resources in Reno, Nevada and is a co-author of the textbook "Essentials of Advanced Composite Fabrication and Repair"—both the first and second editions. Lou also sits on the SME technical community committee and is chair of the SAMPE bonding and joining technical committee, a subset of the technical excellence committee.

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