摘要
为提高射流喷射的稳定性和薄膜成型效率,设计开发了具有气流聚焦功能的静电喷雾装置。仿真研究了喷雾空间电场和气体流场的分布特性,开展了静电喷雾实验研究,分析了喷雾射流喷射行为,讨论了静电喷雾薄膜沉积面积和纳米颗粒直径的控制规律。结果表明,辅助气流的加载能够有效提高喷嘴处射流的喷射速度,促进射流拉伸细化,对减小纳米颗粒直径、提高颗粒均匀性都具有很好的促进作用。
Electrostatic spray spinneret with gas focusing was designed herein,which improved the stability of electrostatic spray jet and the efficiency of micro thin film deposition.Distributions of space electric field and flow field of gas were simulated,regularity of the spray was analyzed,and effects of processing parameters on the deposition areas of the film and diameters of nanoparticles were discussed.Experimental results show that,the jet injection velocity is increased by loading of auxiliary flow,and continuous stretching of auxiliary flow will lead to decrease the diameters of nanoparticles and to improve the nanopartides homogeneity.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2017年第8期946-952,共7页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51405408)
福建省中青年教师教育科研项目(JAT160002)
厦门市科技计划资助项目(3502Z20163005)
厦门南方海洋研究中心资助项目(15GHS019HJ03)
关键词
静电喷雾
气流聚焦
纳米颗粒
薄膜沉积
射流行为
electrostatic spray
gas focusing
nanoparticle
film deposition
jet behavior
