| 湿法混炼工艺中搅拌桨对填料颗粒在胶乳中的分散性模拟研究 |
| Simulation Study on Dispersions of Filler Particles in Latex by Stirring Impellers in Wet Mixing Process |
| 投稿时间：2024-09-08 修订日期：2024-09-10 |
| DOI：10.12136/j.issn.1000-890X.2026.09.0690 |
| 中文关键词: 湿法混炼工艺 搅拌桨 填料颗粒 胶乳 分散性 |
| 英文关键词: wet mixing process stirring impeller filler particle latex dispersion |
| 基金项目:生物基材料与绿色造纸国家重点实验室开放基金资助项目（GZKF202209） |
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| 中文摘要: |
| 在胶料的湿法混炼工艺过程中，对搅拌桨（半折叶桨、Rushton桨和下推式45°六叶斜桨）高速搅拌时填料颗粒与胶乳混合均匀性进行模拟分析。结果表明：在搅拌桨转速为1 200 r·min-1的条件下，当采用半折叶桨和半折叶桨中心与搅拌器底部间距为10 cm时，填料颗粒在流场中分布最佳；随着半折叶桨转速的增大，填料颗粒与胶乳的混合均匀性逐渐提高，当半折叶桨转速为1 200 r·min-1时，填料颗粒体积分数标准差为0.15，填料颗粒在胶乳中达到均匀悬浮状态；随着半折叶桨转速的增大，由胶乳制得的混炼胶的Δ G′ 逐渐减小，填料颗粒在橡胶基体中的分散均匀性逐步提高，当半折叶桨转速超过1 200 r·min-1，混炼胶的ΔG′变化不大。 |
| 英文摘要: |
| 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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