| 不同乳液聚合物和硅酸盐水泥的相互作用 |
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| 引用本文： | 曹强.不同乳液聚合物和硅酸盐水泥的相互作用[J].渭南师范学院学报,2012(6):54-57. |
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| 作者姓名： | 曹强 |
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| 作者单位： | 渭南师范学院化学与生命科学学院,陕西渭南,714000 |
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| 基金项目： | 基金项目:渭南师范学院科研计划项目 |
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| 摘 要： | 用乳液聚合法在水介质中合成了带不同电荷的乳液粒子，通过检测流动电位测定乳液的电动性能．通过测定zeta电位和聚合物在水泥颗粒上的吸附量，研究了有机乳液聚合物与水化水泥粒子的相互作用．结果表明：阴离子乳液从水泥孔隙溶液中吸附大量的Ca2＋，水泥粒子zeta电位证明水化水泥表面能吸附乳液粒子．通过zeta电位和用沉淀法——紫外可见分光光度计测定得到的乳液在水泥表面的饱和吸附量是一致的．
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| 关 键 词： | 乳液聚合物 吸附 流动电位 zeta电位 水泥 |
Interaction between Different Latex Polymers and Portland Cement |
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| CAO Qiang.Interaction between Different Latex Polymers and Portland Cement[J].Journal of Weinan Teachers College,2012(6):54-57. |
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| Authors: | CAO Qiang |
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| Institution: | CAO Qiang(School of Chemistry and Life Science,Weinan Normal University,Weinan 714000,China) |
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| Abstract: | Differently charged latex particles were synthesized in aqueous media by emulsion polymerization technique.Electrokinetic latex surface properties were investigated by means of streaming potential measurements.The interaction between organic latex polymers and the surface of hydrating cement was investigated by measuring the zeta potential and adsorbed amount of polymer on cement.The results indicate that the anionic latexes adsorb a considerable amount of Ca2+ from the cement pore solution.Adsorption of the latex polymers on the surface of hydrating cement was confirmed by zeta potential measurements.The latex dosages are required to achieve saturated adsorption on the cement surface obtained from zeta potential measurements correspond well with those determined in the sedimentation-UV spectrophotometer test. |
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| Keywords: | latex polymers adsorption streaming potential zeta potential cement |
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