Chemical Recycling of High-Molecular-Weight Organosilicon Compounds in Supercritical Fluids

Polymers (Basel). 2022 Nov 28;14(23):5170. doi: 10.3390/polym14235170.

Abstract

The main known patterns of thermal and/or catalytic destruction of high-molecular-weight organosilicon compounds are considered from the viewpoint of the prospects for processing their wastes. The advantages of using supercritical fluids in plastic recycling are outlined. They are related to a high diffusion rate, efficient extraction of degradation products, the dependence of solvent properties on pressure and temperature, etc. A promising area for further research is described concerning the application of supercritical fluids for processing the wastes of organosilicon macromolecular compounds.

Keywords: depolymerization; destruction; polydimethylsiloxane; recycling; silicone rubber; supercritical fluids.

Publication types

  • Review