JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
Other TitleEffect of fuel-oxidizer ratio and atmospheric gas on combustion behavior of guanidine nitrate and basic copper nitrate mixture
Author(jpn)中島, 美穂; 松永, 浩貴; 東, 英子; 高木, 聡介; 加藤, 勝美
Author(eng)Nakashima, Miho; Matsunaga, Hiroki; Higashi, Eiko; Takagi, Sousuke; Katoh, Katsumi
Author Affiliation(jpn)福岡大学; 福岡大学; 福岡大学; 日本化薬株式会社; 福岡大学
Author Affiliation(eng)Fukuoka University; Fukuoka University; Fukuoka University; Nippon kayaku Co., Ltd.; Fukuoka University
Issue Date2018-01-10
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構研究開発報告: 高エネルギー物質研究会: 平成29年度研究成果報告書
JAXA Research and Development Report: Technical Report of The Research Activity for High Energy Materials (2017)
Start page67
End page72
Publication date2018-01-10
Abstract自動車エアバッグ用ガス発生剤の燃焼ガスに含まれる有害ガス(CO, NH3 およびNOx)を低減させるための基礎的研究として, 硝酸グアニジン(GN)/塩基性硝酸銅(BCN)混合物に対してストランド燃焼試験を行い, 燃焼速度および燃焼ガス組成に及ぼす試料組成および雰囲気ガス種類の影響について検討した. その結果, GN/BCN のモル比が7/4 の際に燃焼速度が最大となった. 一方, 同組成の試料は, 試験を実施したその他の試料(GN/BCN = 12/4, 10/4, 9/4, 8/4)の中で最も有害ガス発生量が多かった. また, N2, Ar およびHe 雰囲気下において燃焼試験を実施したところ, He 雰囲気下の圧力指数はその他の雰囲気に比べ高くなった. また, NOx の発生量は, Ar < N2 < He の順に増加する傾向が見られ, 雰囲気ガスの熱伝導率の違いが燃焼ガス組成に影響を及ぼした可能性がある.
As a fundamental study for reducing toxic gases such as CO, NH3, and NOx in the combustion gas for gas generators in automotive airbags, the influence of composition ratio and type of atmospheric gas on the combustion behavior of a guanidine nitrate (GN) and basic copper nitrate (BCN) mixture was investigated using the chimney-type strand burner. The results indicated that the burning rate was highest at the molar ratio of GN/BCN = 7/4. However, the mixture with this molar ratio released the most amount of toxic gases among the other examined samples (GN/BCN = 12/4, 10/4, 9/4, 8/4). In addition, the results of combustion tests conducted under N2, Ar, or He atmospheres revealed that the pressure index under He was higher than that under the other atmospheres. And, the amount of NOx increased under the different atmospheres in the following order: Ar < N2 < He. This may indicate that the thermal conductivity of atmospheric gases influences the combustion gas composition.
Description形態: カラー図版あり
Physical characteristics: Original contains color illustrations
KeywordsAirbag; Gas generator; Guanidine nitrate; Basic copper nitrate; Combustion gas
Document TypeTechnical Report
JAXA Category研究開発報告
NASA Subject CategoryTechnology Utilization and Surface Transportation
Report NoJAXA-RR-17-008

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