Modeling of particle migration inside vibration bubbles in bubble-stretching dispersion method
Bubble-stretching based dispersion method can be used to prevent the agglomeration of nano-particles during the process of preparing nano-composites,whereas its effectiveness is restricted by the practically low migration ratio of particles onto the bubble wall.Theoretical models for bubble vibration and particle migration have been presented,followed by numerically study on effects of different parameters on migration ratio of particles on to the bubble wall.The numerical results have shown that bubble initial radius,bubble initial pressure and particle diameters impact the particle migration ratio obviously and it is found that the particle migration ratio can be improved effectively through the optimal control of the vibration parameters of the bubble happed in the dispersion process.Therefore,this article provides a theoretical basis for the efforts on increasing the particles migration ratio and thus the dispersion effectiveness of nano-particles in polymer melt.
particle migration vibration bubbles bubble-stretching dispersion
Fei Wang Yanling Zhang Liang Zhao Xiaoming Wang
School of Mechanical and Electronic Engineering, Harbin Institute of Technology,Harbin, 150001, China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-8
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）