| 棉浆粕黑液改性氨基磺酸系高效减水剂的研究 |
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| 引用本文： | 陈国新,祝烨然,黄国泓,杜志芹,沈燕平.棉浆粕黑液改性氨基磺酸系高效减水剂的研究[J].混凝土,2012(3):108-110. |
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| 作者姓名： | 陈国新 祝烨然 黄国泓 杜志芹 沈燕平 |
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| 作者单位： | 南京水利科学研究院瑞迪高新技术公司;南京市水工新材料工程技术研究中心 |
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| 摘 要： | 利用棉籽粕黑液对传统氨基磺酸系高效减水剂中进行改性,研究了其改性工艺,结果表明较佳的改性工艺条件为:n(对氨基苯磺酸钠)∶n(苯酚)∶n(甲醛)=1∶2∶5.5,棉籽粕黑液质量占对氨基苯磺酸钠与苯酚总质量百分数的10%,反应时间5 h,反应pH值9,反应温度90℃左右。改性产物的分散性能较未改性产物略有下降,但保水性能明显改善。
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| 关 键 词： | 氨基磺酸系 高效减水剂 棉浆粕黑液 改性 合成 |
Study on cotton pulp black liquor modified aminosulfonic-based superplasticizer |
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| CHEN Guo-xin,ZHU Ye-ran,HUANG Guo-hong,DU Zhi-qin,SHEN Yan-ping.Study on cotton pulp black liquor modified aminosulfonic-based superplasticizer[J].Concrete,2012(3):108-110. |
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| Authors: | CHEN Guo-xin ZHU Ye-ran HUANG Guo-hong DU Zhi-qin SHEN Yan-ping |
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| Affiliation: | 1(1.R&D High-tech Co.,Ltd.,Nanjing Hydraulic Research Institute,Nanjing 210024,China; 2.Nanjing Hydraulic Project New Material Engineering Technology Research Center,Nanjing 210024,China) |
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| Abstract: | A method of preparation modified aminosulfonic-based superplasticizer using cotton pulp black liquor was discussed.The result indicates that the bettermodified technological conditions were as follow:n(sodium sulfanilate)∶n(phenol)∶n(formaldehyde)=1∶2∶5.5,mass percent of cotton pulp black liquor 10%,reaction time 5 h,reaction temperature 90 ℃ and pH 9.The modified product had a little worse dispersing capability than unmodified one,but its bleeding rate decreased apparently. |
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| Keywords: | superplasticizer aminosulfonic-based modification synthesis cotton pulp black liquor |
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