火炸药学报
火炸藥學報
화작약학보
CHINESE JOURNAL OF EXPLOSIVES & PROPELLANTS
2014年
6期
62-64,69
,共4页
刘所恩%陈锦芳%潘葆%赵美玲%宫慧心%张国辉%任晓斌
劉所恩%陳錦芳%潘葆%趙美玲%宮慧心%張國輝%任曉斌
류소은%진금방%반보%조미령%궁혜심%장국휘%임효빈
复合改性双基推进剂%N-甲基对硝基苯胺(PNMA)%化学安定剂%能量特性
複閤改性雙基推進劑%N-甲基對硝基苯胺(PNMA)%化學安定劑%能量特性
복합개성쌍기추진제%N-갑기대초기분알(PNMA)%화학안정제%능량특성
modified double-base propellant%PNMA%chemical stabilizer%energy characteristics
采用传统的无溶剂法和螺压工艺制备了以 N-甲基对硝基苯胺(PNMA)为含能化学安定剂的 HMX/Al-CMDB推进剂,研究了PNMA 对推进剂的制备工艺、化学安定性、力学性能及能量特性的影响。结果表明,用PMNA部分或完全替代Ⅱ号中定剂(C2)后,甲基紫化学安定性试验试纸变色时间大幅度增长,表明含 PNMA 的HMX/Al-CMDB推进剂的化学安定性显著提高,随着PNMA含量的增加,试纸变色所需时间增加。用PNMA 替代C2后,推进剂的密度没有变化,爆热值增加52 kJ/kg,能量有较大提高,对降低压强指数有利,但对推进剂力学性能以及制造工艺无不良影响。
採用傳統的無溶劑法和螺壓工藝製備瞭以 N-甲基對硝基苯胺(PNMA)為含能化學安定劑的 HMX/Al-CMDB推進劑,研究瞭PNMA 對推進劑的製備工藝、化學安定性、力學性能及能量特性的影響。結果錶明,用PMNA部分或完全替代Ⅱ號中定劑(C2)後,甲基紫化學安定性試驗試紙變色時間大幅度增長,錶明含 PNMA 的HMX/Al-CMDB推進劑的化學安定性顯著提高,隨著PNMA含量的增加,試紙變色所需時間增加。用PNMA 替代C2後,推進劑的密度沒有變化,爆熱值增加52 kJ/kg,能量有較大提高,對降低壓彊指數有利,但對推進劑力學性能以及製造工藝無不良影響。
채용전통적무용제법화라압공예제비료이 N-갑기대초기분알(PNMA)위함능화학안정제적 HMX/Al-CMDB추진제,연구료PNMA 대추진제적제비공예、화학안정성、역학성능급능량특성적영향。결과표명,용PMNA부분혹완전체대Ⅱ호중정제(C2)후,갑기자화학안정성시험시지변색시간대폭도증장,표명함 PNMA 적HMX/Al-CMDB추진제적화학안정성현저제고,수착PNMA함량적증가,시지변색소수시간증가。용PNMA 체대C2후,추진제적밀도몰유변화,폭열치증가52 kJ/kg,능량유교대제고,대강저압강지수유리,단대추진제역학성능이급제조공예무불량영향。
A modified double-base propellant containing HMX and Al powder (HMX/Al-CMDB)with P-Nitro-N-methylamine (PNMA)as energetic chemical stabilizer was prepared by traditional solventless method and screw extrusion process.The effects of PNMA on the preparation process,chemical stability,mechanical performance and energy characteristics of HMX/Al-CMDB propellant were studied.The results show that the time needed for color change in methyl-violet test is substantially increased when N,N′-dimethyl-N,N′-diphenylurea (C2 )is partially or totally replaced by PNMA,indicating that the stability of the HMX/Al-CMDB propellant containing PNMA is significantly improved.The time needed for color change of test paper increases with the increase of the proportion of PNMA in the formulation.After the substitution of C2 by PNMA,the density of the propellant has no change, the heat of detonation increases by 52 kJ/kg and the energy increases remarkably,which is beneficial to reduce pressure exponent and has no adverse effect on the mechanical property and manufacturing process of the propellant.