The present work investigates the ablative and thermal properties of an epoxy resin which was modified with titanium dioxide nanoparticles having different size. Prepared samples were submitted to temperatures above 1900 °C and tested for their thermo-protective and ablative properties. The effect of epoxy composite components on thermo-protective and ablative properties: the maximum back side temperature, and the average weight loss under intensive heat flow conditions as well as temperature distribution on the ablation surface of the sample using a thermographic camera and a pyrometer have been established. A statistical analysis of the test results was made. It was confirmed that epoxy resin crosslinked with polyaminoamide hardener and modified with TiO_2(21 nm) i TiO_{2(100 nm+1% Mn)} showed improved thermo-protective properties in comparison with unmodified epoxy matrix.

本工作研究了用具有不同尺寸的二氧化钛纳米粒子改性的环氧树脂的烧蚀和热性能。将准备好的样品置于高于1900°C的温度下，并测试其热防护和烧蚀性能。环氧复合材料组分对热防护和烧蚀性能的影响：最大背面温度，强热流条件下的平均重量损失以及使用热像仪和高温计在样品烧蚀表面上的温度分布已建立。对测试结果进行统计分析。确认环氧树脂与聚氨基酰胺固化剂交联并经TiO _{2（21 nm）} i TiO _{2（100 nm + 1％Mn）}改性 与未改性的环氧基质相比，具有更好的热防护性能。