Applications and Challenges of Supercritical Foaming Technology.

Polymers (Basel)

College of Physical Education, Wuhan Sports University, Wuhan 430079, China.

Published: January 2023

With economic development, environmental problems are becoming more and more prominent, and achieving green chemistry is an urgent task nowadays, which creates an opportunity for the development of supercritical foaming technology. The foaming agents used in supercritical foaming technology are usually supercritical carbon dioxide (ScCO) and supercritical nitrogen (ScN), both of which are used without environmental burden. This technology can reduce the environmental impact of polymer foam production. Although supercritical foaming technology is already in production in some fields, it has not been applied on a large scale. Here, we present a detailed analysis of the types of foaming agents currently used in supercritical foaming technology and their applications in various fields, summarizing the technological improvements that have been made to the technology. However, we have found that today's supercritical technologies still need to address some additional challenges to achieve large-scale production.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9864728PMC
http://dx.doi.org/10.3390/polym15020402DOI Listing

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