Aiming to take ammonium nitrate (AN) into conventional use as new oxidizer agent for gas generating agents on automobile airbag system, the combustion and thermal decomposition characteristics of gas generating agents consist of 5- amino-1-H-tetrazole (HAT), and AN were investigated. It was suggested that combustion performance of HAT/AN gas generating agent was improved by preparing AN into double salt with copper nitrate, or calcium nitrate. Combustion characteristics of gas generating agents consist of HAT, AN, and basic copper nitrate (BCN) was also investigated, and it was indicated that the addition of BCN to HAT/AN gas generating agents is effective to enhance their combustion characteristics.
自動車用エアバッグガス発生剤の新規酸化剤候補として硝酸アンモニウム（以下ANと略記）の実用化を目指し，5− amino−1−H−tatrazole（以下HATと略記），およびANからなるガス発生剤の燃焼並びに熱分解挙動が検討された。AN を硝酸銅，あるいは硝酸カルシウムを用いて複塩化して用いる事により，HAT/ANガス発生剤の燃焼特性が改善される 事が示唆された。また，HAT,AN，塩基性硝酸銅（以下BCNと略記）からなるモデルガス発生剤についても燃焼特性を 検討し，BCNの添加がHAT/ANガス発生剤の燃焼成向上に有効である事が示唆された。
Ammonium nitrate, combustion, thermal analysis.