Preparation method of high-toughness and self-repairing ceramic foaming silicone rubber material

CN120349559APending Publication Date: 2025-07-22SHAOXING BAILISHENG NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202510631356.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2025-07-22

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Abstract

The invention discloses a preparation method of a high-toughness self-repairing ceramic foaming silicone rubber material, and belongs to the technical field of silicone rubber. The preparation method comprises the following steps: S1, mixing methyl vinyl silicone rubber, silane coupling agent modified fumed silica, silane coupling agent modified silicon carbide whiskers, aluminum hydroxide, hydroxyl silicone oil and stigmasterol to prepare base rubber; s2, uniformly mixing silicon resin microspheres, hollow glass microspheres and azodicarbonamide to obtain a foaming system; and S3, uniformly mixing the foaming system with the base rubber, adding double-end sulfydryl boric acid ester, a vulcanizing agent, cerium oxide and SiO2 (at) ZIF-8 nanoparticles, carrying out vulcanization foaming to obtain a pre-foamed master batch, and carrying out gradient vulcanization foaming on the pre-foamed master batch to obtain the ceramic foamed silicone rubber material. The method provided by the invention realizes efficient preparation of the ceramic foamed silicone rubber material with high filler content, endows the material with self-repairing ability, toughness and flame retardance, and is suitable for batch production.
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Citation Information

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