CN102976657B - 一种混凝土减水剂及其制备方法 - Google Patents
一种混凝土减水剂及其制备方法 Download PDFInfo
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- CN102976657B CN102976657B CN201210513902.6A CN201210513902A CN102976657B CN 102976657 B CN102976657 B CN 102976657B CN 201210513902 A CN201210513902 A CN 201210513902A CN 102976657 B CN102976657 B CN 102976657B
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 14
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 14
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
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Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104478279B (zh) * | 2014-12-27 | 2016-08-24 | 陕西科技大学 | 一种多磺酸盐型水泥减水剂及其制备方法 |
CN105254205A (zh) * | 2015-10-06 | 2016-01-20 | 李康 | 一种混凝土保坍剂及其制备方法 |
CN105174795B (zh) * | 2015-10-16 | 2018-02-27 | 山西华凯伟业科技有限公司 | 一种混凝土保坍剂及其制备方法 |
CN105566572A (zh) * | 2015-12-19 | 2016-05-11 | 桂林理工大学 | 一种马来酸酐接枝型聚羧酸保塑剂及其制备方法 |
CN107057003B (zh) * | 2017-05-09 | 2019-04-09 | 山东华伟银凯建材科技股份有限公司 | 自养护型聚羧酸系减水剂及其制备方法 |
CN108033708A (zh) * | 2017-12-19 | 2018-05-15 | 萧县沃德化工科技有限公司 | 一种高效混凝土减水剂 |
CN108192045A (zh) * | 2017-12-29 | 2018-06-22 | 中科院广州化学有限公司 | 一种含纤维素醚类单体的聚羧酸减水剂及其制备方法和应用 |
CN108530587B (zh) * | 2018-04-16 | 2020-04-10 | 科之杰新材料集团有限公司 | 一种酯类保水触变型聚羧酸减水剂的制备方法 |
CN109897554B (zh) * | 2018-06-27 | 2021-01-12 | 湖北工业大学 | 纤维素纳米晶改性装配式外墙板拼接缝粘结密封材料 |
CN110218022B (zh) * | 2019-06-20 | 2021-10-29 | 中交二航武汉港湾新材料有限公司 | 壳寡糖接枝改性聚羧酸减水剂及其制备方法 |
CN111039588A (zh) * | 2019-12-18 | 2020-04-21 | 云南森博混凝土外加剂有限公司 | 一种混凝土用锁水抗离析剂及其制备方法 |
CN111908852A (zh) * | 2020-08-28 | 2020-11-10 | 江苏蓝圈新材料股份有限公司 | 一种预制构件用混凝土及其制备方法 |
CN112250799B (zh) * | 2020-10-19 | 2022-11-22 | 上海是大高分子材料有限公司 | 一种有机硅改性聚羧酸盐分散剂及其制备方法和应用 |
CN113621260A (zh) * | 2021-09-02 | 2021-11-09 | 浙江曼得丽涂料有限公司 | 一种丙烯酸魔彩岩粒真石漆及其制备方法 |
CN113999349A (zh) * | 2021-12-07 | 2022-02-01 | 科之杰新材料集团(海南)有限公司 | 一种和易型减水剂及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102603996A (zh) * | 2012-02-28 | 2012-07-25 | 武汉理工大学 | 一种醚类聚羧酸保坍剂及其制备方法 |
CN102786255A (zh) * | 2012-07-17 | 2012-11-21 | 中科院广州化学有限公司 | 一种水性砂浆改性剂及其制备方法与应用 |
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Patent Citations (2)
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CN102603996A (zh) * | 2012-02-28 | 2012-07-25 | 武汉理工大学 | 一种醚类聚羧酸保坍剂及其制备方法 |
CN102786255A (zh) * | 2012-07-17 | 2012-11-21 | 中科院广州化学有限公司 | 一种水性砂浆改性剂及其制备方法与应用 |
Non-Patent Citations (1)
Title |
---|
聚醚型超塑化剂的合成及其性能研究;吕新璐;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20110915(第09期);原文第42页(3)合成实验至第44页第1段 * |
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Address after: 276034 north of the intersection of Wenquan road and Fenghuang street, Fenghuangling sub district office, Hedong District, Linyi City, Shandong Province Patentee after: LINYI HONGYI TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 276034 No. 369 Renmin Street, Hedong District, Shandong, Linyi Patentee before: SHANDONG HONGYI TECHNOLOGY Co.,Ltd. |
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Address after: 276000 north of the intersection of Wenquan road and Fenghuang street, Fenghuangling sub district office, Hedong, Linyi City, Shandong Province Patentee after: Linyi conch New Material Technology Co.,Ltd. Address before: 276034 north of the intersection of Wenquan road and Fenghuang street, Fenghuangling sub district office, Hedong District, Linyi City, Shandong Province Patentee before: LINYI HONGYI TECHNOLOGY DEVELOPMENT Co.,Ltd. |