含能材料2025，Vol.33Issue(10)：1210-1217,8.DOI:10.11943/CJEM2025044
类胡萝卜素对硝化棉/吸收药的安定作用
The Stabilizing Effect of Carotenoids on Nitrocellulose and NC/NG
摘要
Abstract
Carotenoids,valued for their exceptional free radical scavenging properties and low biological toxicity,were systemat-ically investigated as potential stabilizers for propellants.A comprehensive evaluation strategy,incorporating differential thermal analysis(DTA),methyl violet test strips,isothermal thermogravimetry,vacuum stability testing,and accelerating rate calorime-try(ARC),was employed to assess their stabilizing effects.Four representative carotenoids-lycopene,β-carotene,xanthophyll,and astaxanthin,were examined for their stabilization performance in nitrocellulose(NC)and absorptive composition systems.All tested carotenoids demonstrated superior thermal stability compared to conventional stabilizers.Notably,astaxanthin exhibit-ed the most significant enhancement:it prolonged the methyl violet discoloration time of NC by 40 min,reducing mass loss by 17.90%,decreased the maximum adiabatic decomposition temperature rise rate by 0.134℃·min-1,and lowered gas pressure re-lease per unit mass by 12.0 kPa.In absorptive compositions,it extended the methyl violet discoloration time by 34 min while re-ducing mass loss by 14.18%.Free radical scavenging tests and intermediate structural analyses revealed the underlying stabiliza-tion mechanism:carotenoids effectively suppress autocatalytic decomposition via nitrogen-oxygen free radical capture,achiev-ing nearly 90%scavenging efficiency at 8 mmol·L-1.Additionally,secondary derivatives formed during carotenoid degradation were free of nitrosamine groups,significantly reducing toxicological concerns.关键词
硝化棉/吸收药/安定剂/类胡萝卜素/氮氧自由基Key words
nitrocellulose/NC/NG/stabilizer/carotenoids/nitrogen oxygen free radical分类
武器工业引用本文复制引用
李亮,赵杨,金波..类胡萝卜素对硝化棉/吸收药的安定作用[J].含能材料,2025,33(10):1210-1217,8.基金项目
国家自然科学基金(22305196) （22305196）
四川省自然科学基金(2025ZNSFSC1374) National Natural Science Foundation of China(No.22305196),Natural Science Foundation of Sichuan Prov-ince(No.2025ZNSFSC1374) （2025ZNSFSC1374）
