| PEG浓度及温度对聚砜铸膜液流变学和热力学性质的影响 |
| |
| 引用本文： | 郑庆柱,田侠,王鹏.PEG浓度及温度对聚砜铸膜液流变学和热力学性质的影响[J].科技导报(北京),2009,27(18):71-74. |
| |
| 作者姓名： | 郑庆柱 田侠 王鹏 |
| |
| 作者单位： | 郑庆柱,田侠(青岛农业大学资源与环境学院,山东,青岛,266109);王鹏(哈尔滨工业大学市政环境工程学院绿色化学与技术研究中心,哈尔滨,150090) |
| |
| 摘 要： | 以N,N-二甲基乙酰胺(DMAc)和N-甲基-2-吡咯烷酮(NMP)为混合溶剂,以聚乙二醇(PEG)为添加剂制备聚砜(PSF)铸膜液,采用旋转流变仪测定PSF铸膜液黏度,采用浊点滴定法绘制浊点相图,定量研究了温度和PEG浓度对聚砜铸膜液流变学和热力学性质的影响.在剪切速率0-100 s-1范围内,对铸膜液剪切速率和剪切应力的检测值进行拟合,得知聚砜铸膜液为牛顿流体,进而求出聚砜铸膜液的黏度值.结果表明,聚砜铸膜液黏度随PEG浓度的增大而增大,随温度的升高而减小.PEG减弱了铸膜液对非溶剂的容纳能力,加速铸膜液的液一液相分离;温度升高可增大铸膜液对非溶剂的容纳能力,减缓铸膜液的液一液相分离,
|
| 关 键 词： | 聚砜铸膜液 温度 聚乙二醇浓度 流变学性质 热力学性质 |
Effects of PEG Concentration and Temperature on the Rheological and Thermodynamic Properties of PSF Casting Solution |
| |
| ZHENG Qingzhu,TIAN Xia,WANG Peng.Effects of PEG Concentration and Temperature on the Rheological and Thermodynamic Properties of PSF Casting Solution[J].Science & Technology Review,2009,27(18):71-74. |
| |
| Authors: | ZHENG Qingzhu TIAN Xia WANG Peng |
| |
| Institution: | ZHENG Qingzhu1,TIAN Xia1,WANG Peng2 1. Department of Resource , Environment,Qingdao Agricultural University,Qingdao 266109,Sh,ong Province,China 2. Research Center for Green Chemistry , Technology,School of Municipal , Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China |
| |
| Abstract: | In this paper, N,N-dimethylacetamide (DMAc) and Nmethyl-2-pyrrolidone (NMP) were used as the mixed solvent, and poly(ethylene glycol) (PEG) was used as the additive in the polysulfone (PSF) casting solution. The blending ratio of DMAc to NMP was 8:2 in the mixed solvent. The effects of temperature and PEG concentration on the rheological and thermodynamic properties of the PSF casting solution were studied quantitatively based on the castingsolution viscosity measurement by Rotational Rheometer and the clou... |
| |
| Keywords: | polysulfone casting solution temperature PEG concentration rheological properties thermodynamic properties |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
