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[1]张智,雷宇芳,鄢佳佳,等.新型固体聚羧酸高效减水剂的研制[J].武汉工程大学学报,2013,(07):60-65.[doi:103969/jissn16742869201307012]
　ZHANG Zhi,LEI Yu fang,YAN Jia jia,et al.Synthesis of novel solid polycarboxylic waterreducer[J].Journal of Wuhan Institute of Technology,2013,(07):60-65.[doi:103969/jissn16742869201307012]
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新型固体聚羧酸高效减水剂的研制(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年07期
页码:
60-65
栏目:
资源与土木工程
出版日期:
2013-07-31

文章信息/Info

Title:
Synthesis of novel solid polycarboxylic waterreducer
文章编号:
16742869(2013)07006006
作者:
张智; 雷宇芳; 鄢佳佳; 李顺凯; 屠柳青
中交武汉港湾工程设计研究院有限公司， 湖北 武汉 430040
Author(s):
ZHANG Zhi; LEI Yufang; YAN Jiajia; LI Shunkai; TU Liuqing
Wuhan Harbour Engineering Design & Research Institute Co.,Ltd of CCCG, Wuhan 430040, China
关键词:
聚羧酸高效减水剂; 固态; 本体聚合
Keywords:
high efficiency polycarboxylic water reducer;  solid;  bulk polymerization
分类号:
TB333； O646.542
DOI:
103969/jissn16742869201307012
文献标志码:
A
摘要:
聚羧酸高效减水剂生产浓度一般为20%～40%(质量分数)，不宜储存和运输，限制了其更广泛的应用.利用本体聚合方法合成固体聚羧酸减水剂，在不加任何溶剂的情况下，利用原料中大单体TPEG、丙烯酸的物理化学特性，通过合适的引发剂（BPO），实现反应原料熔融态下的聚合反应.最佳反应条件为TPEG∶AA∶MAS=0.8∶3.25∶0.4（摩尔比），引发剂BPO用量为单体总质量的1%，反应温度为80 ℃，引发剂滴加时间为2 h，保温时间为1.5 h.反应结束后趁热将产物倒出，冷却至室温，经研磨成粉末，得到产品.实验得到的固体聚羧酸减水剂产品经研磨后无粘结现象，颗粒尺寸在0.125 mm时，46 s即可实现完全溶解，150 d未出现变质结块现象.通过净浆试验和混凝土试验对产品进行了性能测试，结果表明产品性能超过了国内同类固体聚羧酸高效减水剂的产品水平.本体聚合法制备固体聚羧酸高效减水剂工艺简单、操作容易、对环境友好，具有非常广阔的工业前景.
Abstract:
High efficiency water reducer of polycarboxylic acid as a new kind of building materials is in concentration of 20%-40%, which is unfavorable for storage and transportation, and limits its extensive application. The solid water reducer of polycarboxylic acid was synthesized through bulk polymerization method without any solvent, in the presence of initiator (BPO), polymerized under the melting state. The optimum reaction conditions were as fellow: the molar ratio of crude materials was TPEG∶AA∶MAS = 0.8∶3.25∶0.4,the dosage of initiator (BPO) was 1% of the monomer weight, the temperature of reaction was 80℃,the time of initiator dropwising was 2 hours and the time of warm keeping was 1.5 hours. The crude product was poured out after cooling to room temperature, the end product was made after grinded as a powder. The powder of solid polycarboxylic water reducing agent which was grinded to 0.125 mm can be dissolved in 46 seconds without any cementation in 150 days. The cement paste and concrete experiment results show that the product performance is better than that of the similar products at home. This preparation of high efficiency water reducer of solid poly carboxylic acid by bulk polymerization has advantages of simple process, easy operation, friendly environment, which opens up broad prospects for commercialization.

参考文献/References:

［1］毛建，王钧，杨小利. 聚羧酸系高性能减水剂研究现状与发展\[J\].国外建材科技, 2005,26(1):46. Mao Jian, Wang Jun, Yang Xiaoli. The Status and Deyelopment of Polycarboxylic High Performance Waterreducing Agent \[J\].Science and Technology of Overseas Building Materials, 2005,26(1):46.（in Chinese）［2］王立久，卞利军，曹永民. 聚羧酸系高效减水剂的研究现状与展望\[J\]. 材料导报, 2003(2): 4345.Wang Jiuli, Bian Lijun, Cao Yongmin. Present Status and Prospects for Polycarboxylic High Performance WaterReducing Agent Research\[J\]. Materials Review, 2003(2): 4345. （in Chinese）［3］方云辉. 固体聚羧酸高效减水剂的制备研究\[J\]. 福建建筑, 2010(7): 145. Fang Yunhui. Preparation of solid polycarboxylate superplasticizer\[J\]. Fujian Architecture & Construction,2010(7): 145.(in Chinese)［4］守屋庆隆, 太田晃. 高性能AE减水剂の最近动向\[J\]. 材料, 1994(43): 491. Itohpia Ent. Trend to developmen of High Performance Waterreducing Agent \[J\], Material, 1994(43): 491. （in Chinese）［5］梁辉, 刘国军. 新型高效混凝土外加剂的应用与现状\[J\]. 中国水泥, 2005(3): 7882. Liang Hui, Liu Guojun. Present Status and Prospects for Novel c High Performance WaterReducing Agent Research \[J\]. China Building Material Equipment, 2005(3): 7882. （in Chinese）［6］Zhang Xiuzhi, Yang Yongqing, Pei Meishan. Application and development of the high range water reducing agent\[J\]. Journal of Jinan University: Sci. &Tech, 2004, 18(2): 139144［7］唐明述. 水泥混凝土与可持续发展\[J\]. 中国建材, 2003(10), 2325. Tang Mingshu. Cement, concrete and sustainable development \[J\].China Building Materials, 2003(10), 2325. （in Chinese）［8］杨国武, 梅名虎, 刘俊元,等. 真空薄层蒸发法制备固体聚羧酸系高性能减水剂\[C\]// 第三届全国混凝土外加剂应用技术专业委员会年会暨第三届全国聚羧酸系高性能减水剂及其应用技术交流会. 北京：中国建筑学会，2007.［9］张甬, 马双平. 高效减水剂的性能及其发展趋势\[J\]. 桂林工学院学报, 2005(2), 225228. ZHANG Yong, MA Shuangping. Performance and Development of Superplasticizers \[J\].Journal of Guilin Institute of Technology, 2005(2), 225228. （in Chinese）［10］贺娜, 于晓晨, 于才渊. 喷雾干燥技术的应用\[J\]. 干燥技术与设备, 2009, 7(3): 116119. HE Na, YU Xiaochen, YU Caiyuan. Application of Spraydrying Technique \[J\]. Drying Technology & Equipment, 2009, 7(3): 116119. （in Chinese）［11］周学永, 高建保. 喷雾干燥粘壁的原因与解决途径\[J\]. 应用化工, 2007(6): 599602. ZHOU Xueyong, GAO Jianbao. Reasons for wall sticking during spray drying and countermeasures \[J\].Applied Chemical Industry,2007(6): 599602. （in Chinese）［12］李崇智, 李永德, 冯乃谦. 聚羧酸系减水剂的合成工艺研究\[J\]. 建筑材料学报, 2002, 5(4): 326330. Li Congzhi, Li Yongde, Fegn Naiqian. Research on synthesis process and performance of polycarboxylate concrete superplasticizer \[J\].Journal of Building Materials, 2002, 5(4): 326330. （in Chinese）［13］伍双全,胡昊泽,刘治田,等.一种聚羧酸系减水剂的合成与性能\[J\]. 武汉工程大学学报, 2011,33( 7):913.WU Shuangquan,HU Haoze,LIU Zhitian, et al. Synthesis and properties of polycarboxylate superplasticizer\[J\]. Journal of Wuhan Institute of Technology, 2011, 33(7):913. （in Chinese）［14］Liu M Z, Liu R, Zhan F L, et al. Preparation of superabsorbent slow Release nitrogen fertilizer by inverse suspension polymerization\[J\]. Polym Int, 2007, 56(5): 729737.［15］寿崇琦, 徐小伟, 初永杰. 超支化型聚羧酸减水剂的合成\[J\]. 混凝土, 2010(1): 5557. SHOU Chongqi, XU Xiaowei, CHU Yongjie. Synthesis of hyperbranched polycarboxylic superplasticizer \[J\].Concrete, 2010(1): 5557. （in Chinese）［16］唐林生, 张国政, 李小丽,等. 新型聚乙二醇接枝聚羧酸减水剂的制备\[J\]. 混凝土, 2010(2): 7477.TANG Linsheng,ZHANG Guozheng,LI Xiaoli, et al. Preparation of a new polyethylene glycol grafting polycarboxylic waterreducing agents \[J\].Concrete, 2010(2): 7477. （in Chinese）［17］Plank J, Winter C h. Competitive adsorption between super plasticizer And retarder molecules on mineral binder surface\[J\]. Cement and Concrete Research, 2008(38): 599605.［18］王凌伟, 王飞镝, 郭宝春,等. 共聚型马来酸酐系减水剂的制备与结构性能的研究\[J\]. 材料导报, 2010, 24(5): 3336. WANG Lingwei,WANG Feidi,GUO Baochun,et al. Research on Preparation,Structure and Properties of Copolymeric Maleic Anhydride Superplasticizer \[J\].Materials Review, 2010, 24(5): 3336. （in Chinese）［19］杨斌. 聚羧酸减水剂机理及应用\[J\]. 广西质量监督导报, 2010(6): 4244. Yang Bin. Mechanism and Application of Polycarboxylic Acid Type Waterreducing Agent \[J\].Guang Xi Quanlity Supervision, 2010(6): 4244. （in Chinese）［20］杜丽娟. 聚羧酸系减水剂研究\[J\]. 现代商贸工业, 2009(6): 270271. Du Lijuan. The Research of Polycarboxylic Acid Type Waterreducing Agent \[J\].Modern Business Trade Industry,2009(6): 270271.(in Chinese)［21］赵苏, 于渤, 夏义兵. 减水剂在水泥水界面的吸附现象\[J\]. 沈阳建筑大学学报,2010,26(4): 724728. ZHAO Su,YU Bo,XIA Yibing. Adsorption Phenomenon of Superplasticizer on the CementWater Interface \[J\]. Journal of Shenyang Jianzhu University(Natural Science), 2010,26(4):724728. （in Chinese）

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备注/Memo

备注/Memo:
收稿日期：20130607作者简介：张智(1982)，男，湖北武汉人，工程师，博士.研究方向：新型建材材料的开发和应用.
更新日期/Last Update: 2013-07-31