| 聚羧酸系高效减水剂的合成与分散机理研究 |
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| 引用本文： | 胡建华,汪长春,杨武利,府寿宽,陈博学,成克锦. 聚羧酸系高效减水剂的合成与分散机理研究[J]. 复旦学报(自然科学版), 2000, 39(4): 463-466 |
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| 作者姓名： | 胡建华 汪长春 杨武利 府寿宽 陈博学 成克锦 |
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| 作者单位： | 1. 复旦大学教育部聚合物分子工程开放实验室
2. 上海建工集团 |
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| 摘 要： | 在氧化还原的引发体系中，将聚乙二醇（ＰＥＧ）与马来酸酐（ＭＡ）的缩聚物，丙烯酸（ＡＡ），２－丙烯酰胺基－２－甲基－丙基磺酸（ＡＭＰＳ），丙烯酸羟丙酯（ＨＰＡ），醋酸乙烯酯（ＶＡｃ）共聚合成直链含 羟基、羟基、磺酸基等官能团，支链含醚基的多官能团共聚物，通过对其性能和机理研究发现，它们都是组成高效减水剂的基体；当聚合时ＰＥＧ缩聚物的比例较大和ＰＥＧ分子一定长时，产物有好的净浆流动性和一定的坍落度保持
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| 关 键 词： | 聚羧酸盐 高效减水剂 净浆流动性 混凝土 |
Synthesis and Mechanism of Poly (carboxylate) High-Range Water Reducing Agent |
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| HU Jian-hua,WANG Chang-chun,YANG Wu-li,FU Shou-kuan,CHEN Bo-xue,CHENG Ke-jing. Synthesis and Mechanism of Poly (carboxylate) High-Range Water Reducing Agent[J]. Journal of Fudan University(Natural Science), 2000, 39(4): 463-466 |
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| Authors: | HU Jian-hua WANG Chang-chun YANG Wu-li FU Shou-kuan CHEN Bo-xue CHENG Ke-jing |
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| Affiliation: | 1. Fudan University; 2. Shanghai Construct and Engineering Group |
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| Abstract: | In oxidation reduction initiation system, the polycondensate prepared from polyethylene glycol and maleic anhydride, acrylate acid, AMPS, HPA and vinyl acetate were copolymerized, the obtained copolymer having carboxyl, hydroxy and sulfonic group in the main chain, and ester group on the side chain. Through the study on it is property and mechanism, it is found that these groups all contribute to high range water reducing property. When the polycondensate of PEG has higher fraction in monomers and proper molecular weight, the product copolymer will have better sand liquid flowability and fine rheology performance. |
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| Keywords: | poly (carboxylate) high range water reducing agent sand liquid flowability |
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