GAP原位聚合包覆RDX的研究  

Study on RDX Coated by GAP through In-situ Polymerization

作　　者：陈炜 刘巧娥 陈腾[1] 郝嘎子 胡玉冰 姜炜[1] CHEN Wei;LIU Qiaoe;CHEN Teng;HAO Gazi;HU Yubing;JIANG Wei(School of Chemical Engineering,Nanjing University of Science and Technology,Jiangsu Nanjing,210094;Research Institute of Gansu Yinguang Chemical Industry Group Co.,Ltd.,Gansu Baiyin,730900)

机构地区：[1]南京理工大学化工学院,江苏南京210094 [2]甘肃银光化学工业集团有限公司科研所,甘肃白银730900

出　　处：《爆破器材》2019年第6期14-18,23,共6页Explosive Materials

基　　金：国家安全重大基础研究项目;基础产品创新火炸药科研专项;国防科技卓越青年科学基金

摘　　要：以聚叠氮缩水甘油醚(GAP)为包覆层材料,甲苯二异氰酸酯(TDI)为交联剂,二月桂酸二丁基锡(DBTDL)为催化剂,乙酸乙酯为溶剂,采用原位聚合法,制备了GAP-TDI/RDX复合材料。利用SEM、FT-IR、XRD、DTA对样品进行了形貌表征和性能测试;利用DTA对其热分解特性进行了研究,结合不同升温速率下的DTA曲线对样品的热分解动力学参数进行了计算。结果表明,GAP成功包覆在RDX表面。所制备的GAP-TDI/RDX复合材料的热分解表观活化能相比原料RDX降低了4.6 kJ/mol,说明复合材料的热分解活性得到提高;GAP-TDI/RDX复合材料的特性落高H 50从15.2 cm提升至25.6 cm。A GAP-TDI/RDX composite was prepared via in-situ polymerization by using Glycidyl azide polymer(GAP)as a coating material,toluene diisocyanate(TDI)as a crosslinking agent,dibutyltin dilaurate(DBTDL)as a catalyst,and ethyl acetate as a solvent.Morphology and performance of the samples were characterized by SEM,FT-IR,XRD and DTA.Thermal decomposition characteristics of the sample were studied by DTA,and thermal decomposition kinetic parameters of the sample were calculated by integrating the DTA curves at different heating rates.The results show that GAP successfully coats on the surface of RDX.The apparent activation energy of thermal decomposition of the prepared GAP-TDI/RDX composites is 4.6 kJ/mol lower than that of the raw material RDX,indicating that the thermal decomposition activity of the composites has been improved.The characteristic drop height,H 50,of the GAP-TDI/RDX composite increases from 15.2 cm to 25.6 cm.

关 键 词：原位聚合 GAP-TDI/RDX 复合材料 热分解 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]