本研究以添加氧化鐵燃燒觸媒的方法,來探討對含能複合材料物化性之影響,同時比較奈米級四氧化三鐵(Fe3O4)、微米級四氧化三鐵(Fe3O4)與微米級三氧化二鐵( Fe2O3 )對含能複合材料作用的差異。由研究結果顯示,無論奈米級Fe3O4或微米級Fe2O3及 Fe3O4對含能複合材料的燃燒性能皆有提昇效果,其中又以奈米級Fe3O4對材料的催化能力表現最優、微米級Fe2O3其次而微米級Fe3O4催化能力最小。另一方面因氧化鐵觸媒的加入,不但能對過氯酸銨之熱分解具催化作用,提昇材料的燃燒性能,同時對HTPB與IPDI的聚合固化反應亦具有催化作用,若氧化鐵觸媒添加過多,會使材料的聚合固化反應速率大幅增加,而導致EOM上升,造成加工上的困難度。本研究同時對不同種類及含量之氧化鐵觸媒所製成的複合材料進行機械性能測試,研究結果顯示含能複合材料之最大應力有隨氧化鐵觸媒含量增加而升高,而最大延伸率則有下降之趨勢。
For the different kinds of ferric oxides (Fe2O3 and Fe3O4) burning rate catalysts and different contents of the same catalyst affect the energetic composites materials. Additives of the different kinds of ferric oxides as catalysts enhance the burning rate as well as the pressure exponent of the energetic composites materials. The burning rate was increased with the Fe content. On the other hand, the catalytic thermal decomposition of ammonium perchlorate (AP) by ferric oxide the decomposition exothermic peak temperature at low-temperature range changes little, but it is continuously lowered at high-temperature decomposition range. The results show that Fe3O4 nanoparticles have good catalytic effect on the combustion of energetic composites materials.