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Development prospect of polycarboxylic acid water reducing agent

2019/10/6 15:38:50 8 字号: 分享

The polycarboxylic acid-based water reducing agent has a large degree of freedom in adjustment of the molecular structure, and there are many parameters that can be controlled by the manufacturing technology, so the potential for high performance is large. At present, foreign polycarboxylic acid water reducing agents have commercialized varieties, and relevant basic theoretical research is also deepening, especially for advanced instruments such as molecular mass fractionation and determination of synthesized polymers, using high performance liquid chromatography Studying the adsorption of polymers in cement systems and other researches on the effects of chemical structures on properties and the mechanism of action, so that many chemical structure information that was difficult to determine is concrete, the research results tend to be objective and quantitative, and the development of ideal performance water reducing agents The guiding role will be stronger. China's research in this field is still in its infancy, and it is not until 2000 that people gradually began to recognize the superiority of polycarboxylate superplasticizers and began preliminary research in the laboratory. However, with the rapid development of China's economic construction and the fact that China's cement admixture researchers should cooperate with polymer synthesis workers in cross-industry, polycarboxylate water reducers have completely replaced traditional naphthalene water reduction in this field. Agent. Moreover, its production costs have also been reduced to some extent. However, in general, the polycarboxylate water reducer independently developed in China has a certain degree in terms of the singularity of the variety and the stability of the product, and also with foreign companies, especially the top companies in Japan. gap. It is believed that through the unremitting efforts of researchers in China, the gap between China and foreign technology will become smaller and smaller, and in the near future, high-performance excellent water reducer products will be produced.