Chaotic Mixing Analyzing in Continuous Mixer with Tracing the Morphology Development of a Polymeric Drop

Processes

Guo Li¹  Huajian Ji¹  Linsheng Xie¹  Hao Guo²  Yu Yang²  Tao Chen³ 

[1] Engineering Center of Efficient Green Process Equipment and Energy Conservation, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China;International Joint Research Center for Optoelectronic and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China;School of Physics and Astronomy, Yunnan University, Kunming 650091, China;

关键词: continuous mixer;    chaotic mixing;    on-line visualization;    morphology development;   

DOI  :  10.3390/pr8101308

来源: DOAJ

【 摘 要 】

The chaotic mixing process in a continuous mixer plays an important role and has an essential influence on the performance of prepared materials. To reveal how a polymeric drop experienced the chaotic mixing and give more specific analysis about the chaotic mixing, the morphology development of a single drop was traced and recorded with an on-line visualization system. The drop would undergo elongation deformation, reorientation, and folding process, which were the typical signs of chaotic mixing. The elongation deformation was an important precondition for drop experiencing the reorientation and folding process and mainly existed in the region near the barrier, rotor tip clearance, and wedgelike region. The reorientation and folding process mostly appeared in the region near the rotor flat and interaction window. Besides, the erosion process of the drop was observed at the initial stage under lower rotor rotation speed. The chaotic mixing always held the dominant place in continuous mixer although the rotor rotation speed and drop viscoelasticity were adjusted. In this work, the chaotic mixing in a continuous mixer was dynamically presented. The dynamical results would give a more real and visual understanding of the chaotic mixing.

【 授权许可】

Unknown