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Meeting the Challenge of Thermoset Recycling for Under-the-Hood Applications
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English
Abstract
The composites industry has made considerable progress toward the recycling of sheet molding compound (SMC) and bulk molding compound (BMC). Composite recyclate generated from the grinding of thermoset parts is being used commercially in several “primary” applications; that is, in applications where performance requirements are comparable to those of applications which use virgin product. In order to increase the utilization of composite recyclate, the industry must overcome the paradox that recyclate-containing SMC is cost effective relative to alternative recyclable materials but is more expensive than virgin SMC. It is also desirable to develop formulations which utilize greater proportions of recyclate and which perform in the full range of applications which presently use SMC.
Although the utilization of post-consumer scrap for recyclate appears to be technically feasible, the lack of an infrastructure to economically recover the scrap presents a challenge. As the industry addresses that challenge, the opportunity to incorporate non-SMC post-consumer wastes as inputs to SMC and BMC may be an effective approach to achieve substantial post-consumer content in current products. Utilization of currently extractable post-consumer wastes for incorporation into composites may be the most effective short term means for our society to integrate its waste management needs and should not be overlooked in the quest for environmentally-friendly materials.
Authors
Citation
Gruskiewicz, M. and Butler, K., "Meeting the Challenge of Thermoset Recycling for Under-the-Hood Applications," SAE Technical Paper 950487, 1995, https://doi.org/10.4271/950487.Also In
References
- Jutte, Ralph B. Graham W. David “Recycling SMC” 46th Annual Conference Composites Institute, The Society of the Plastics Industry, Inc.
- Butler, Kurt “Recycling of Molded SMC and BMC Materials” 46th Annual Conference Composites Institute, The Society of the Plastics Industry, Inc.
- Rusch, Ken “Recycling of Automotive SMC - The Current Picture” 48th Annual Conference Composites Institute, The Society of the Plastics Industry, Inc.
- Graham, W. David Jutte R. B. Shipp D. L. “Recyclability of Glass Fiber Reinforcements in Thermoset and Thermoplastic Applications” 48th Annual Conference Composites Institute, The Society of the Plastics Industry, Inc.
- Hartt, George N. Carey Daniel P. “Economics of Recycling Thermosets” International Congress & Exposition
- DeMaio, Anthony J. “Engineering High Performance Thermoset Resins from Polyethylene Terephthalate Thermoplastics” 46th Annual Conference Composites Institute, The Society of the Plastics Industry, Inc.