EVALUATION METHOD OF CROSSLINKED SILICONE RUBBER DECOMPOSED COMPOSITION AND DECOMPOSITION METHOD OF CROSSLINKED SILICONE RUBBER

摘要

PROBLEM TO BE SOLVED: To provide a quick evaluation method of a decomposed composition obtained by a decomposition method of a silica-containing crosslinked silicone rubber which is carried out under pressurization by use of a water-alcohol mixed solvent. SOLUTION: This evaluation method of crosslinked silicone rubber performed under pressurization by use of the water-alcohol mixed solvent is characterized by performing the evaluation with an extraction ratio obtained in the extraction of the crosslinked silicone rubber decomposed composition with the solvent.