Materials Reports  2021, Vol. 35 Issue (z2): 163-166 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Research of Viscosity Reducing Polycarboxylate Superplasticizer Synthesized by Emulsion Polymerization |
| WANG Suping1, WANG Yuan2, HU Zhihao2, PAN Yang2, HU Chuanshan2, LI Zhengping2, GAO Huimin2, WEN Xuan2
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1 Wuhan Yuanjin Building Materials Technology Co., Ltd., Wuhan 434300, China
2 Wuhan Sanyuan Special Building Materials Co., Ltd., Wuhan 434300, China |
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Abstract In order to solve the problems of high viscosity and slow flow rate in the mixing process of high-strength concrete, viscosity reducing polycarboxylic superplasticizer was synthesized by free radical polymerization with Methylallyl polyoxyethylene ether, butyl methacrylate, acrylic acid and methacrylic acid. The acid ether ratio, ester ether ratio, the amount of emulsifier and other test factors were investigated. The test results show that the optimum synthesis process of polycarboxylic superplasticizer is that the acid ether ratio is 3.5, the ester ether ratio is 1.5, the dosage ratio of AA∶MAA is 2, the reaction temperature is 35—45 ℃, and the dosage of emulsifier is 0.4% of the system quality. The product shows good viscosity reduction performance in the concrete test, and effectively reduce the plastic viscosity of concrete.
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Published: 09 December 2021
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About author:: Suping Wang, master, graduated from Wuhan Institute of Technology, majoring in polymer chemistry and phy-sics, research field:synthesis and application of polycarboxylic superplasticizer.
Yuan Wang, engineer, graduated from Huazhong Agricultural University in June 2012 with a master's degree. He has published more than 10 journal papers, applied 10 national invention patents, He is mainly engaged in the research of building functional materials and new building materials. |
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