▎ 摘　　要

NOVELTY - Preparing high-strength and high-temperature-resistant ceramic fiber elastomer thermal insulation material involves dispersing uniformly first portion of ceramic microfiber, graphene oxide solution, surfactant and water through the first stirring to obtain a dispersion, adding a reducing agent and a silicone rubber prepolymer to the dispersion, dispersing uniformly through the second stirring, performing pre-reduction reaction to obtain a pre-reduction product, adding a second portion of ceramic microfiber to the pre-reduced product, dispersing uniformly through the third stirring, and performing reduction reaction to obtain ceramic microfiber/graphene composite wet gel. USE - Method for preparing high-strength and high-temperature-resistant ceramic fiber elastomer thermal insulation material used in elastic aerogel material, aerospace high-temperature thermal insulation, and high temperature heat insulation of chemical metallurgy or high temperature heat insulation of nuclear power generation (claimed). ADVANTAGE - The prepared high-strength and high-temperature-resistant ceramic fiber elastomer thermal insulation material has the maximum compression strength of 0.75 megapascal under 10% compression deformation and the long-term temperature resistance of 1300℃. DETAILED DESCRIPTION - Preparing high-strength and high-temperature-resistant ceramic fiber elastomer thermal insulation material involves dispersing uniformly first portion of ceramic microfiber, graphene oxide solution, surfactant and water through the first stirring to obtain a dispersion, adding a reducing agent and a silicone rubber prepolymer to the dispersion, dispersing uniformly through the second stirring, performing pre-reduction reaction to obtain a pre-reduction product, adding a second portion of ceramic microfiber to the pre-reduced product, dispersing uniformly through the third stirring, performing reduction reaction to obtain ceramic microfiber/graphene composite wet gel, soaking the obtained ceramic microfiber/graphene composite wet gel in water, wet-pressing the soaked ceramic microfiber/graphene composite wet gel to obtain wet-pressed ceramic microfiber/graphene composite wet gel, subjecting orderly wet-pressed ceramic microfiber/graphene composite wet gel to the steps of pre-freezing, freezing, drying, and annealing to obtain a high-strength and high-temperature-resistant ceramic fiber elastomer heat insulating material. An INDEPENDENT CLAIM is included for a high-strength and high-temperature-resistant ceramic fiber elastomer thermal insulation material is prepared by preparation method.