5. Chemical processes (solvolysis, glycolysis, acidolysis, etc.)

Chemical recycling is based on the principle of depolymerization by solvolysis. This technique involves treating a polymer or polymer-matrix composite with a reactive solvent capable of depolymerizing the resin by cutting the bonds present in the macromolecular network, leading to a liquid mixture of depolymerization products [2][42]. Depending on the case, glycolysis, acidolysis, hydrolysis or alcoholysis are used to describe the chemical treatment involving glycol, acid, water or alcohol respectively.