| 聚丙烯酸-苯乙烯分散剂的合成及其对纳米二氧化锆分散性能的影响 |
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| 引用本文： | 舒绪刚,何湘柱,黄慧民,李大光.聚丙烯酸-苯乙烯分散剂的合成及其对纳米二氧化锆分散性能的影响[J].精细石油化工,2009,26(3). |
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| 作者姓名： | 舒绪刚 何湘柱 黄慧民 李大光 |
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| 作者单位： | 1. 仲恺农业工程学院化学化工学院,广东,广州,510025
2. 广东工业大学轻工化工学院,广东,广州,510006 |
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| 基金项目： | 国家自然科学基金，广州市应用基础研究项目 |
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| 摘 要： | 采用溶液聚合法以水为溶剂、过硫酸钾为引发剂,合成了低相对分子质量聚丙烯酸-苯乙烯聚合物分散剂。在中性水溶液,pH=2的酸性水溶液和2 mol/L KCl电解质溶液3种环境下,以纳米ZrO_2颗粒的分散粒径为分析依据对合成条件进行了优化探索。结果表明,在反应温度80℃,单体苯乙烯与丙烯酸摩尔比为1: 1,引发剂K_2S_2O_8用量为4%(质量分数),反应时间2 h条件下,制得的分散剂具有良好的分散效果。
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| 关 键 词： | 聚丙烯酸-苯乙烯 分散剂 溶液聚合法 |
SYNTHESIS AND INFLUENCE OF COPOLYMER OF STYRENE/ACRYL ACID FOR DISPERSING NANO-ZIRCONIUM DIOXIDE |
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| Shu Xugang,He Xiangzhu,Huang Huimin,Li Daguang.SYNTHESIS AND INFLUENCE OF COPOLYMER OF STYRENE/ACRYL ACID FOR DISPERSING NANO-ZIRCONIUM DIOXIDE[J].Speciality Petrochemicals,2009,26(3). |
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| Authors: | Shu Xugang He Xiangzhu Huang Huimin Li Daguang |
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| Abstract: | An styrene/acryl acid copolymer was employed as a dispersant for nano-ZrO_2 in pH=2, pH=7 and 2 mol/L KCl solution suspensions,by solution polymerization using water as solvent, K_2S_2O_8 as initiator.The optimum conditions were found as follows:temperature 80℃,molar ratio of styrene to acrylic acid 1:1,mass percentage of potassium persulphate to styrene and acrylic acid 4%, and reaction time 2 h.The effect of pH and ionic strength on the zeta potential and particle sizes of the nano-ZrO_2 and stabilizing mechanism of the dispersant was discussed. |
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| Keywords: | dispersant styrene/acrylic acid solution polymerization |
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