Title: Recyclamine^® - Novel Amine Building Blocks for a Sustainable World

Authors: Pradip Kumar Dubey, Satish Kumar Mahanth, Amit Dixit

DOI: 10.33599/nasampe/s.21.0632

Abstract: Epoxy thermosets are high performance polymers having superior mechanical, adhesive, and very good chemical resistant properties, preferred for versatile applications in Composites, Coating, Construction, Electrical & Electronics segments. Unfortunately, unlike thermoplastics, thermosetting plastics are not recyclable. Thermoset waste generated during manufacturing and end-of-life pose significant ecological, environmental and societal challenges all over the world. A new class of high-performance amine-based epoxy curing agents, Recyclamines®, have been developed for the creation of inherently recyclable thermoset materials. Recyclamine® technology is based on specifically engineered recyclamine® curing agents which enables cleavage points that converts thermosetting epoxies into thermoplastics under specific set of conditions. These cleavage points are reversible at specific condition and hence enable disintegration of the thermoset matrix. During this disintegration process, all the valuable reinforcing components such as carbon fiber, glass fiber, kevlar®, plastic material in a thermoset composite, can be recovered. More importantly, the thermoset manufacturing waste can be recycled, reused and re-integrated back into the manufacturing ecosystem. In this paper general overview of the recyclable epoxy technology and platform chemistry is presented, including the underlying chemical principle that fosters recycling and recovery of the cured thermoset epoxy. Recyclable epoxy systems based on Recyclamine® are developed and characterized for process and performance properties. Recycling and recovery of epoxy thermoset composite is demonstrated as proof of the concept.

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Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000632

Pages: 13

Price: FREE