| 羧基中和程度对聚丙烯酸钠分散性能的影响 |
| |
| 引用本文： | 马立治,武德珍,张强.羧基中和程度对聚丙烯酸钠分散性能的影响[J].北京化工大学学报(自然科学版),2003,30(1):45-47. |
| |
| 作者姓名： | 马立治 武德珍 张强 |
| |
| 作者单位： | 北京化工大学材料科学与工程学院,北京,100029 |
| |
| 摘 要： | 采用自由基溶液聚合的方法合成了低分子量的聚丙烯酸，使用 30%的NaOH将其中和为不同pH值的聚丙烯酸钠并用于钛白粉的分散。通过旋转粘度和最终沉降高度考察了羧基中和程度对于体系分散性能的影响，并用相差显微镜观察了微观分散相。结果表明羧基的中和程度越大，体系分散性越好，最佳pH值≈9.0。
|
| 关 键 词： | 聚丙烯酸钠 分散剂 钛白粉 聚丙烯酸钠 分散剂 钛白粉 |
| 修稿时间： | 2002年6月18日 |
Effect of the degree of carboxyl neutralization on the dispersivity of polyacrylate sodium |
| |
| MA Li-zhi,WU De-zhen,ZHANG Qiang.Effect of the degree of carboxyl neutralization on the dispersivity of polyacrylate sodium[J].Journal of Beijing University of Chemical Technology,2003,30(1):45-47. |
| |
| Authors: | MA Li-zhi WU De-zhen ZHANG Qiang |
| |
| Institution: | College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing; China |
| |
| Abstract: | Low molecular weight poly(acrylic acid) was synthesized by radical aqueous solution polymerization. Then 30% NaOH was chosen to neutralize it into polyacrylate sodium with different pH values which were used to disperse titanium pigment. The effect of degree of carboxyl neutralization on the dispersivity of the system was observed through the rotational viscosity and final settling height. Moreover, the phase differential microscope was used to determine the microscopic dispersion phase. All results show that deeper the degree of carboxyl neutralization, the better the system dispersivity, and the optimum pH value is about 9.0. |
| |
| Keywords: | polyacrylate sodium dispersing agent titanium pigment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京化工大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《北京化工大学学报(自然科学版)》下载免费的PDF全文 |
