有机烧蚀防热涂层是小型固体火箭发动机燃烧室室壁及膛内零件用的一种较好的烧蚀防热材料。由于有机烧蚀防热涂层具有不受被保护零件几何形状限制等优点,因此对于防护工作时间短的小型固体火箭发动机零件尤为适宜。过去研究的酚醛有机烧蚀防热涂层,用作某些发动机燃烧室壁、喷管座的防热层,均取得良好的防热效果,保证了发 Organic ablative heat-resistant coating is a good ablative and heat-proof material for chamber wall and bore in small solid rocket engine combustion chamber. Because of the advantages of organic ablative thermal coatings that are not limited by the geometry of the parts being protected, it is particularly suitable for small solid rocket motor parts that have short protection times. The past study of the phenolic organic ablative heat-resistant coating, for some engine combustion chamber wall, nozzle seat of the heat-proof layer, have achieved good heat protection, to ensure the hair