
基本信息:
- 专利标题: 一种用于湿拌砂浆的聚羧酸型缓凝剂及其合成方法
- 专利标题(英):Polycarboxylic acid-type retarder for wet-mixed mortar and synthetic method thereof
- 申请号:CN201410782966.5 申请日:2014-12-17
- 公开(公告)号:CN105754044A 公开(公告)日:2016-07-13
- 发明人: 刘军 , 朱炎宁 , 岳彩虹 , 艾洪祥 , 王玉娟 , 王琴 , 陆建军 , 康明 , 韩世界
- 申请人: 中建西部建设股份有限公司
- 申请人地址: 新疆维吾尔自治区乌鲁木齐市经济技术开发区泰山路268号
- 专利权人: 中建西部建设股份有限公司
- 当前专利权人: 中建西部建设股份有限公司
- 当前专利权人地址: 新疆维吾尔自治区乌鲁木齐市经济技术开发区泰山路268号
- 主分类号: C08F283/06
- IPC分类号: C08F283/06 ; C08F220/06 ; C08F220/28 ; C08F228/02 ; C08F220/56 ; C08F2/38 ; C08F4/40 ; C04B24/16 ; C04B103/22
The invention discloses a polycarboxylic acid-type retarder for wet-mixed mortar and a synthetic method thereof. The method comprises the following steps: pouring nonsaturated polyoxyethylene ether into a reactor, adding water, stirring and gradually heating to completely dissolve solids, wherein mass ratio of water to nonsaturated polyoxyethylene ether is 1: 1.1; adding a nonsaturated sulfonate solution, stirring and adding an oxidizing agent, stirring and reacting for 10 min, simultaneously adding a solution A and a solution B drop by drop for 1-1.5 h until the solutions are completely added dropwise; and stirring and carrying out thermal insulation after completely adding dropwise, cooling below 30 DEG C, adjusting pH to 6-7 by the use of alkali lye, and adding water for adjustment so as to obtain the product. The invention has the following advantages: the production technology is simple; and the polycarboxylic acid-type retarder can be used along with multiple additives, has good adaptability to various cements and has high water-reducing rate.
IPC结构图谱:
C | 化学;冶金 |
--C08 | 有机高分子化合物;其制备或化学加工;以其为基料的组合物 |
----C08F | 仅用碳—碳不饱和键反应得到的高分子化合物 |
------C08F283/00 | 由单体接到C08G小类所包括的聚合物上聚合而得到的高分子化合物 |
--------C08F283/06 | .接到聚醚、聚氧化甲烯或聚醛缩醇上 |