蜜胺甲醛树脂原位聚合法包覆六硝基六氮杂异伍兹烷  

Coating of ε-HNIW with Melamine-Formaldehyde Resin by In-situ Condensatesation Polymerization Reaction

作　　者：孟征[1] 欧育湘[1] 刘进全[1] 赵毅[1] 

机构地区：[1]北京理工大学材料科学与工程学院,北京100081

出　　处：《含能材料》2006年第5期333-335,339,共4页Chinese Journal of Energetic Materials

基　　金：总装预研基金项目(12060451867)

摘　　要：通过原位聚合法用蜜胺甲醛树脂包覆六硝基六氮杂异伍兹烷（HNIW）。以三聚氰胺、甲醛为原料，聚乙烯醇为增韧剂，碳酸钠为催化剂，制成预聚物溶液，与ε-HNIW共混滴加氯化铵溶液使预聚物固化成壳包覆HNIW。用FTIR、光学显微镜及机械撞击感度验证了钝感包覆效果。结果表明包覆较好，特性落高风。比原料提高了10.3cm。根据ε-HNIW的晶型热稳定性及蜜胺甲醛树脂的制备方法，讨论了包覆的最佳工艺条件。在蜜胺和甲醛之比是1：2．5，预聚体形成阶段反应pH值为8～9，原位聚合包覆阶段pH值为4～5，反应温度为70℃时可使ε-HNIW得到较好的包覆。ε-HNIW coated with melamine-formaldehyde resin was prepared by in-situcondensatesation polymerization from ε-HNIW as the core material , melamine and formallne as wall materials. The coated ε-HNIW was characterized on structure, morphologies, thermal properties and impact sensitivity. It showed that ε-HNIW was well-coated and the sensitivity was reduced as the H50 increased by 10.3 cm. The optimum reaction conditions are as follows ： the mole ratio of melamine to formaldehyde was 1 ： 2.5, and the pH of preparing prepolymer and in-situcondensatesation step are respectively 8-9 and 4-5, the temperature of in-situcondensatesation step is 70℃.

关 键 词：材料科学 原位聚合 六硝基六氮杂异伍兹烷 蜜胺树脂 包覆 

分 类 号：TQ564[化学工程—炸药化工]