CAJ | 학술논문

通过在二氧化硅(SiO_2)溶胶向凝胶转变过程中,依次加入黑索今(RDX)的丙酮-N,N-二甲基酰胺(DMF)混合溶液和氟橡胶(FPM_(2602))的乙酸乙酯溶液,采用提拉法和手工旋转涂抹法制备了白色半透明状质量分数为80%的RDX/SiO_2传爆药薄膜.结果表明,当正硅酸乙酯(TEOS)和乙醇摩尔比为1:4时,随醇水摩尔比的适当减小,膜的韧性降低并且成膜后RDX粒径变小;溶胶在60℃陈化时,随陈化时间增加,溶胶粘度由3 Pa-s增至凝胶点时的13 Pa·s,此时涂膜,所得薄膜表面平整.扫描电镜表明,在薄膜内部,300～500 nm的球状SiO_2黏附在RDX表面,形成3～5μm且星块状的RDX/SiO:复合膜单元,是一种新型的膜状传爆药.
통과재이양화규(SiO_2)용효향응효전변과정중,의차가입흑색금(RDX)적병동-N,N-이갑기선알(DMF)혼합용액화불상효(FPM_(2602))적을산을지용액,채용제랍법화수공선전도말법제비료백색반투명상질량분수위80%적RDX/SiO_2전폭약박막.결과표명,당정규산을지(TEOS)화을순마이비위1:4시,수순수마이비적괄당감소,막적인성강저병차성막후RDX립경변소;용효재60℃진화시,수진화시간증가,용효점도유3 Pa-s증지응효점시적13 Pa·s,차시도막,소득박막표면평정.소묘전경표명,재박막내부,300～500 nm적구상SiO_2점부재RDX표면,형성3～5μm차성괴상적RDX/SiO:복합막단원,시일충신형적막상전폭약.
In the process of silica(SiO_2)sol transiting into gel,the definite mixture of acetone,N,N-dimethylformamide(DMF)and hexogen(RDX)and the mixture of acetic ester and fluorine rubber(FPM_(2602))were added sequentially,and the sub-transparent white 80% RDX/SiO_2 booster membranes were obtained by pulley and manual spin coating methods.Results show that when the molar ratio of silicic acid tetracthyl ester(TEOS)to ethanol is 1 : 4,with the proper decreasing of the molar ratio between ethanol and water,the ductility of membrane and the particle size of RDX decrease.When the sol ages at 60 ℃,the viscosity of sol solution increases from 3 Pa · s to 13 Pa · s at gel point with the increasing of aging time,and the membranes acquired by spin coating is thin and smooth.The SEM photographs show that the spheroidal SiO_2 with particle size of 300 - 500 nm adheres on the surface of RDX and forms a blocklike composite membrane element of RDX/SiO_2 with size of 3-5μm,which is a new-type booster membrane.