摘要
采用动态接触角和界面张力仪研究了氮含量不同的硝化棉(NC)与不同粒度的高氯酸铵(AP)表面性能以及NC与填料之间的界面性能,研究了界面性能对含AP和铝粉(Al)改性双基推进剂(AP/Al/CMDB)力学性能的影响。结果表明,NC的氮含量越低,AP的粒度越小,它们的表面张力以及其极性分量和非极性分量愈大。同时AP的粒度越小,NC与AP间界面张力和粘附功越小;但由于界面张力减小的效应强于粘附功越小的效应,推进剂的抗拉强度仍增大。而NC氮含量愈小,NC与AP间界面张力越小、粘附功愈大,推进剂抗拉强度增强。
The surface properties of AP with various particle sizes and nitrocellulose（NC） with various content of nitrogen,and the interface properties between NC and AP were studied by using the dynamic contact angle and interface tension technique.And the effects of the surface and interface properties on mechanical properties of Composite Modified Double-base Propellant Containing AP and Aluminium were also investigated.It was shown that the surface energy of AP increases with the increase in its particle size,while the surface energy of NC increases with the increasing nitrogen content of NC.At the same time,the particle size of AP plays a key role on the interface energy and adhesion energy between NC and AP,and the interface energy and adhesion energy decrease with decreasing particle size of AP.But the effect of interface energy decreasing on mechanical properties of the propellants is higher than that of adhesion energy,and the higher tensile strength of propellant is obtained when particle size of AP decreases.In addition,as the nitrogen content of NC decrease,the interface energy between NC and AP decrease and corresponding adhesion energy increase.The high tensile strength of corresponding propellant is also obtained herein.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2010年第6期685-688,共4页
Chinese Journal of Energetic Materials
关键词
物理化学
固体推进剂
表界面性能
硝化棉
粒度
高氯酸铵
physical chemistry； modified double-base propellant； surface and interface properties； nitrocellulose； ammonia perchorate
