作　　者： ; ; ;

机构地区： 南京理工大学化工学院

出　　处： 《推进技术》 2014年第1期133-137,共5页

摘　　要： 为了更好地改善硝酸铵(AN)的某些性能,以AN为主体,分别添加质量分数为1%,2%和3%的2,3-二羟甲基-2,3-二硝基-1,4-丁二醇四月桂酸酯(BHDBTL)、2,3-二羟甲基-2,3-二硝基-1,4-丁二醇四棕榈酸酯(BHDBTP)和2,3-二羟甲基-2,3-二硝基-1,4-丁二醇四硬脂酸酯(BHDBTS),对改性前后的硝酸铵分别进行了晶变、吸湿性的研究,结果表明当添加剂加入量分别为1%,2%,3%时,BHDBTP,BHDBTS对硝酸铵改性的效果要优于BHDBTL,且当添加剂为BHDBTS,添加量为2%时的改性硝酸铵的效果最佳;进一步对三种添加量为2%的添加剂改性前后的硝酸铵进行了扫描电子显微镜(SEM)测试,发现当添加剂为BHDBTS,改性硝酸铵的效果最佳。 In order to improve certain properties of ammonium nitrate (AN),AN was coated with 2,3-bis (hydroxymethyl)-2,3-dinitro-1,4-butanediol tetralaurate (BHDBTL),2,3-bis (hydroxymethyl)-2,3-dinitro-1,4-butanediol tetrapalmitate (BHDBTP),2,3-bis (hydroxymethyl)-2,3-dinitro-1,4-butanediol tetrastearate(BHDBTS),respectively.And the additive amount of each coating was 1％,2％ and 3％ (weight),respectively.The properties of the unmodified and modified AN about crystal transformation and hygroscopicity were studied.The results show that when the added quantity of three coating materials is 1％,2％ or 3％,respectively,BHDBTP and BHDBTS are superior to BHDBTL.Moreover,BHDBTS with added quantity of 2％ is the best for modification of AN.When the additive amount of coating is 2％,unmodified and modified AN coated with three coating materials are tested by SEM.It is found that BHDBTS is among the best for modification of AN.

关 键 词： 硝酸铵 改性 晶变 吸湿性

领　　域： [化学工程] [化学工程]