| 酯化-共聚合成高效减水剂WD-1 |
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| 引用本文： | 周智鹏,王飞镝,武文超,邓海娥. 酯化-共聚合成高效减水剂WD-1[J]. 广东工业大学学报, 2006, 23(2): 24-28 |
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| 作者姓名： | 周智鹏 王飞镝 武文超 邓海娥 |
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| 作者单位： | 广东工业大学,轻工化工学院,广东,广州,510090;广东工业大学,轻工化工学院,广东,广州,510090;广东工业大学,轻工化工学院,广东,广州,510090;广东工业大学,轻工化工学院,广东,广州,510090 |
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| 基金项目： | 2003年广东工业大学学生课外科技活动立项资助(2003) |
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| 摘 要： | 以甲基丙烯酸与聚乙二醇为主要原料,经酯化制得聚乙二醇丙烯酸酯,将酯化物与烯丙基磺酸钠、甲基丙烯酸共聚制备出聚羧酸系高效减水剂WD-1.对产品进行了红外光谱分析,探讨了聚乙二醇的聚合度(n)、聚乙二醇封端与否以及酯化温度对聚羧酸系减水剂主要性能的影响.结果表明:采用n=9的聚乙二醇单甲醚进行酯化,温度为80℃时,产品具较好的综合性能;产品红外谱图与设计分子结构相符;聚羧酸系高效能减水剂WD-1可以使水泥具有较好的净浆流动度,混凝土减水率可达26.9%.
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| 关 键 词： | 聚羧酸系 减水剂 酯化 共聚 |
| 文章编号： | 1007-7162（2006）02-0024-05 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-04-20 |
Synthesis of High-Performance Water-reducing Agent WD-1 by Process of Esterification-Copolymerization |
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| ZHOU Zhi-peng,WANG Fei-di,WU Wen-chao,DENG Hai-e. Synthesis of High-Performance Water-reducing Agent WD-1 by Process of Esterification-Copolymerization[J]. Journal of Guangdong University of Technology, 2006, 23(2): 24-28 |
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| Authors: | ZHOU Zhi-peng WANG Fei-di WU Wen-chao DENG Hai-e |
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| Affiliation: | (Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510090,China) |
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| Abstract: | In this paper,high performance polycarboxylic type water-reducing agent WD-1 is synthesized in following steps: 1.Methyl acrylic acid is esterized with polyethylene glycol;2.The ester intermediate is polymerized with sodium allylsulfonate and methyl acrylic acid.The polymerization degree of PEG(n),the temperature of esterification(T)and their effect on major performance of water reducing agent WD-1 are discussed.The product is characterized by IR;and the total performance is tested.The results show that the water-reducing ratio of WD-1 is 26.9% when n=9 and T=80?℃. |
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| Keywords: | polycarboxylic water-reducing agent esterification copolymerization |
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