| 复色多相聚合物/ 油/ 水分散体系的悬浮稳定性及分散稳定性 |
| |
| 引用本文： | 仲惟兵,夏宇正,李效玉,焦书科. 复色多相聚合物/ 油/ 水分散体系的悬浮稳定性及分散稳定性[J]. 合成橡胶工业, 1999, 0(2): 93-97 |
| |
| 作者姓名： | 仲惟兵 夏宇正 李效玉 焦书科 |
| |
| 作者单位： | 北京化工大学材料科学与工程学院 |
| |
| 摘 要： | 采用Ｓｔｏｋｅｓ落球模型研究了两相密度差对油／水分散体系悬浮稳定性的影响规律，考察了水相粘度及水相界面张力对油／水分散体系分散稳定性的影响。结果表明：复色多相分散体系的悬浮稳定性主要由两相密度差决定，当两相密度差降至０．５ｋｇ／ｍ３时，可以制得悬浮稳定性很好的复色多相分散体系。水相粘度增大，悬浮稳定性提高。水相界面张力对丙烯酸酯－聚氨酯油相形成的分散体系影响较大，当其界面张力大于６９．５×１０－３Ｎ／ｍ时，分散稳定性好。只要粒子间不易相互融结，形成的复色多相分散体系便不发生渗色现象。
|
| 关 键 词： | - |
Suspension stability and dispersion stability of multicolor polyphase system of polymer/oil/water |
| |
| Zhong Weibing,Xia Yuzheng,Li Xiaoyu and Jiao Shuke. Suspension stability and dispersion stability of multicolor polyphase system of polymer/oil/water[J]. China Synthetic Rubber Industry, 1999, 0(2): 93-97 |
| |
| Authors: | Zhong Weibing Xia Yuzheng Li Xiaoyu Jiao Shuke |
| |
| Abstract: | The effects of density difference of two phases on the suspension stability of oil/water system were studied by Stokes falling ball model,and the influence of the viscosity and interface tension of water phase on the dispersion stability of oil/water system was also investigated.The results showed that the suspension stability of the system was mainly determined by the density difference of two phases. A dispersion system with good suspension stability was obtained when the density difference decreased to 0.5 kg/m3. The suspension stability improved with the increase of water phase viscosity.The interface tension of water phase greatly effecte the dispersion stability when acrylate polyurethane copolymer was used as oil phase.Dispersion stability was good when the interface tension of water phase was more than 69.5 mN/cm.There was no color permeating phenomenon as long as the oil phase granules were not easy to aggregate. |
| |
| Keywords: | multicolor polyphase dispersion system suspension stability dispersion stability color permeating |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《合成橡胶工业》浏览原始摘要信息 |
|
点击此处可从《合成橡胶工业》下载免费的PDF全文 |
