A Review Of Chemical Recycling Pathways For Waste Polyurethane

Authors

  • Karnam Bharti
  • Raminder Kaur

DOI:

https://doi.org/10.63278/mme.vi.1767

Keywords:

Polyurethane (PU), Chemical Recycling, Hydrolysis, Alcoholysis, Acidolysis, Glycolysis, Aminolysis, and Phosphorolysis, Rigid foam, Flexible foam.

Abstract

Polyurethane (PU) is a commonly utilized polymer due to its versatility and performance properties. However, its resistance to deterioration creates considerable hurdles for end-of-life care. This review gives a shortoverview of present recycling strategies for PU, with a particular emphasis on chemical recycling processes, including hydrolysis, alcoholysis, acidolysis, glycolysis, aminolysis, and phosphorolysis. These approaches enable the breakdown of PU into useful chemical constituents, facilitating potential reuse in polymer synthesis.This review highlights the mechanism, advantages, and limits of each method. Although additional optimization is required, chemical recycling offers a viable approach for enhancing the sustainability of PU material lifecycles.

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Published

2025-05-07

How to Cite

Bharti, Karnam, and Raminder Kaur. 2025. “A Review Of Chemical Recycling Pathways For Waste Polyurethane”. Metallurgical and Materials Engineering, May, 1781-1803. https://doi.org/10.63278/mme.vi.1767.

Issue

Vol. 31 No. 5 (2025)

Section

Research

License

Copyright (c) 2025 Karnam Bharti, Raminder Kaur

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