【摘要】 分别以丙烯腈-苯乙烯共聚物(AS),氟橡胶(F2311),聚氨酯弹性体(Eatane5701)和水性聚氨酯(WPU)为包覆原材料,采用水悬浮包覆法、喷涂法和破乳法包覆黑索今(RDX)。对包覆颗粒的进行了高效液相色谱(HPLC)分析,测定了RDX溶出量,计算了粘结剂对RDX的包覆度。对比了HPLC法与扫描电子显微镜(SEM)和X射线光电子能谱法(EDS)的表征效果。结果表明:以AS为包覆材料,喷涂法得到的包覆颗粒,包覆效果最好,SEM观测到包覆比较致密,与RDX表面有良好的物理接触,EDS没有检测到包覆不完全的情况,HPLC评价得到的包覆度为96.24%。更多还原

【Abstract】 C oated R DX w ere prepared by w ater suspension coating method,spray coating method and demulsification method,using acrylonitrile-styrene( AS) copolymer,fluoro rubber( F2311),polyurethane elastomer( Estane5701) and w aterborne polyurethane( W PU) as coating raw materials,respectively. T he high performance liquid chromatography( HPLC) determination of coated particles,quantitative determination of the dissolution quantity of R DX and calculation of the adhesive coated degree of R DX w ere carried out. T he characterization efficacy of HPLC,scanning electron microscope( SEM) and energy dispersive spectroscopy( EDS) w as compared. R esults show that using AS as raw material,the coated particles obtained by spray coating method have dense coating and perfect physical contact w ith the surface of R DX. T he situation of incomplete coating is not detected by EDS. T he degree of coverage obtained by HPLC is 96. 24%.更多还原