Recycling of polyurethanes: where we are and where we are going

G Rossignolo, G Malucelli, A Lorenzetti - Green Chemistry, 2024 - pubs.rsc.org
Polyurethanes (PUs) represent a family of useful synthetic polymers (thermoplastic or
thermosetting) obtained from diisocyanates and diols/polyols via polycondensation …

Progress toward sustainable polymer technologies with ball-mill grinding

A Rizzo, GI Peterson - Progress in Polymer Science, 2024 - Elsevier
The ball-mill grinding (BMG) of polymers has a long history, starting with Staudinger
showing in the 1930s that polystyrene undergoes chain scission upon ball milling. However …

Green Catalysts for Reprocessing Thermoset Polyurethanes

M Sun, DT Sheppard, JP Brutman, A Alsbaiee… - …, 2023 - ACS Publications
Polyurethane (PU) thermosets are usually landfilled at the end of their service lifetimes and
cannot be recycled through conventional means. Although dibutyltin dilaurate (DBTDL) is an …

Novel recycling processes for thermoset polyurethane foams

SA Madbouly - Current Opinion in Green and Sustainable Chemistry, 2023 - Elsevier
Polyurethane foams (PUFs) are widely used in many different industrial applications
including automotive, construction, packaging, medical devices, thermal insulation …

Vitrimerization of crosslinked elastomers: a mechanochemical approach for recycling thermoset polymers

A Bandegi, TG Gray, S Mitchell, AJ Oskouei… - Materials …, 2023 - pubs.rsc.org
Crosslinked poly (ethylene-vinyl acetate)(EVA) is extensively used in a wide range of
applications including solar cell encapsulates and athletic shoes. However, recycling large …

Foam-to-Elastomer Recycling of Polyurethane Materials through Incorporation of Dynamic Covalent TAD–Indole Linkages

K Unal, D Maes, L Stricker, K Lorenz… - ACS Applied Polymer …, 2024 - ACS Publications
Polyurethane (PU) foams are a large volume commodity product and as such pose a
considerable recycling challenge for the polymer manufacturing industry. The incorporation …

[HTML][HTML] A mechanochemical approach to recycle thermosets containing carbonate and thiourethane linkages

R Rahimzadeh, Y Han, I Manas-Zloczower - Polymer, 2024 - Elsevier
Over the past decades, various industries shifted from traditional materials such as glass
and metals to thermoset polymers due to their excellent chemical resistance, thermal …

Mechanochemistry Recycling of Polyurethane Foam Through Transcarbamoylation Mediated by Free Alcohol

J Chen, H Zhu, P Wu, C Zhang… - … Sustainable Chemistry & …, 2024 - ACS Publications
It is highly desirable to provide an effective methodology to recycle polyurethane foam (PUF)
wastes into similar or even higher value products, which is expected to promote the …

Reducing High-Molecular-Weight Oligomers in Biobased Pentamethylene Diisocyanate Trimers

Y Yang, Q Hu, F He, P Ma, G Li, H Li… - Industrial & Engineering …, 2024 - ACS Publications
New biobased pentamethylene diisocyanate (PDI) trimers have received increasing
attention because of their high biochar content and excellent performance in coatings …

Solving the dilemma between reprocessability and mechanical properties faced by recyclable bio-based polyurethane foam through confining imine bonds in the hard …

PH Wu, YQ Li, Y You, CJ Huang, HB Xie… - Industrial Crops and …, 2024 - Elsevier
Introducing dynamic covalent bonds (DCBs) into polyurethane (PU) foams can solve the
problem of their poor recyclability. However, a dilemma arises between reprocessability and …