Recycling method of insulating material silicon rubber waste

• Main Authors: PENG LEI, FU QIANG, LI ZHI, FU CHENGXI, DU MINGLIANG, ZHANG LI, LIN MUSONG
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention belongs to the technical field of cyclic utilization of insulating materials, and particularly relates to a cyclic utilization method of insulating material silicon rubber waste. The recycling method of the insulating material silicon rubber waste comprises the following steps: crushing the insulating material silicon rubber waste, mixing the crushed insulating material silicon rubber waste with an alcoholysis agent and a catalyst, and carrying out a reaction to obtain a siloxane product containing double bonds; the alcoholysis agent is unsaturated alcohol; the catalyst comprises at least one of zinc acetylacetonate, zinc chloride, zinc acetate, zinc trifluoromethanesulfonate, zinc oxide, zinc perchlorate, zinc fluoride and zinc bromide. The degradation product obtained by applying the recycling method of the insulating material silicon rubber waste can be applied to preparation of the insulating material again, and the prepared insulating material has good mechanical properties. Meanwhile, the