摘要: |
测定磺甲基酚醛树脂水溶液流体力学直径和(电势,以此考察磺甲基酚醛树脂在水中的分散特性。结果表明: 在去离子水中,当磺甲基酚醛树脂的质量浓度小于0.05 g/L时,体系分子聚集体的流体力学直径为105 run,其表面 带负电;当磺甲基酚醛树脂质量浓度高于0.05 时,磺甲基酚醛树脂分子聚集体之间开始聚集,聚集体的流体力学直径随之增加;不同电解质对磺甲基酚醛树脂水溶液的聚沉作用不同,NaCl与CaCLMgCUIClnNa^O#聚沉值 之比为1:0. 032: 0. 66: 0. 00058: 0.79;随NaCl质量浓度的增加,磺甲基酚醛树脂分子聚集体的流体力学直径随之增 加,(电势随之降低;pH =3.0时聚集体流体力学直径最大电势绝对值最小。 |
关键词: 磺甲基酚醛树脂 聚沉 流体力学直径 (电势 分散特性 |
DOI:10.3969/j.issn.1673-5005.2010.02.029 |
分类号:TE 357.46 |
基金项目: |
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Dispersion property of sulfomethyl phenol formaldehyde resin in water |
LI Ming-yuan1,GUO Ya-mei1,HE Hui-zong2,LIN Mei-qin1,PENG Bo1,GUO Ji-xiang1
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(1. Enhanced, Oil Recovering Research Center in China University of Petroleum, Beijing 102249, China;2. Qingdao Safety Engineering Institute, SINOPEC, Qingdao 266071,China)
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Abstract: |
The dispersion property of sulfomethyl phenol formaldehyde resin in water was studied by measuring its hydrodynamic diameter and zeta potential. The results show that the hydrodynamic diameter of the resin molecular aggregate is 105 nm and the aggregate is negative charged when the mass concentration of the resin is less than 0.05 g/L in distilled water. The molecular aggregates begin to congregate and the hydrodynamic diameter of the resin molecular aggregate becomes bigger when the mass concentration of the resin is more than 0.05 g/L The coagulation of the molecular aggregates is affected by different electrolytes. The ratio of critical coagulating concentration of NaCl to CaCl2,MgCl2, A1C13,Na2S04 for the same solution is 10.032 0. 66: 0.00058: 0.79. The hydrodynamic diameter of resin molecular aggregate increases but the absolute value of zeta potential decreases with the mass concentration of NaCl increasing. When the pH value of the solution is 3. 0,the hydrodynamic diameter of aggregate is the biggest but the absolute value of zeta potential is the least in the solution. |
Key words: sulfomethyl phenol formaldehyde resin coagulation hydrodynamic diameter zeta potential dispersion property |