| Simulation Study on Dispersions of Filler Particles in Latex by Stirring Impellers in Wet Mixing Process |
| Received:September 08, 2024 Revised:September 10, 2024 |
| DOI：10.12136/j.issn.1000-890X.2026.09.0690 |
| Key Words: wet mixing process；stirring impeller；filler particle；latex；dispersion |
| Author Name | Affiliation | E-mail | | LIU Zhenhua | Qingdao University of Science and Technology | Leoliu0924@163.com | | LIU Fumin* | Qingdao University of Science and Technology | liufumin@qust.edu.cn | | HOU Guoliang | Qingdao University of Science and Technology | | | ZHANG Hongsen | Qingdao University of Science and Technology | |
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| Abstract: |
| During the wet mixing processes of compounds，the uniformities of mixing between the filler particles and the latex under high-speed stirring by stirring impellers （semi-folded blade impeller，Rushton blades impeller and down-push 45° six-blade impeller）were simulated and analyzed.The results showed that，under the stirring impeller speed of 1 200 r·min-1，using the emi-folded blade impeller and a distance of 10 cm between the emi-folded blade impeller center and the agitator bottom，the distribution of the filler particles in the flow field was the best.As the semi-folded blade impeller speed increased，the mixing uniformity of filler particles and latex gradually was improved.At the semi-folded blade impeller speed of 1 200 r·min-1，the standard deviation of the filler particle volume fraction was 0.15，indicating that the filler particles reached a uniformly suspended state in the latex.As the semi-folded blade impeller speed increased，the Δ G′ of the compound prepared by the latex gradually decreased，and the dispersion uniformity of filler particles in the rubber matrix progressively improved.When the semi-folded blade impeller speed exceeded 1 200 r·min-1，the Δ G′ variation of the compound was minimal |
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