采用水热法制备ZrO2空心微球作为隔热填料,以萘改性的耐热酚醛环氧树脂为基体,制备了4种不同ZrO2含量的热电池隔热涂层,表征了其性能.结果表明,所制ZrO2为直径约500nm的空心球,表面粗糙;酚醛环氧树脂的热分解温度约为370℃,适宜的ZrO2空心球添加量为50%～60%(ω).ZrO2含量为50%(ω)时,室温下隔热涂层结合强度为21.6MPa,剪切强度为11.4MPa,热导率为0.05W/(m·K);300℃下隔热涂层剪切强度为3.1MPa,热导率为0.04W/(m·K). The hydrothermal method was used to prepare ZrO2 hollow microspheres as thermal insulation filler, and four kinds of thermal insulation coatings with different content of ZrO2 were prepared by using naphthalene-modified heat-resisting phenolic epoxy resin as matrix. The results showed that , The prepared ZrO2 hollow spheres with a diameter of about 500nm, the surface roughness; phenolic epoxy resin thermal decomposition temperature of about 370 ° C, suitable ZrO2 hollow sphere addition of 50% ~ 60% (ω) .ZrO2 content of 50% (ω), the bonding strength of the insulation coating at room temperature is 21.6MPa, the shear strength is 11.4MPa, the thermal conductivity is 0.05W / (m · K); the shear strength of the thermal insulation coating at 300 ℃ is 3.1MPa , Thermal conductivity of 0.04W / (m · K).