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Comparison of TEA TIPA DEIPA three alcohol amine monomer cement grinding aids

Views:80     Author:su     Publish Time: 2018-11-05      Origin:Site Inquire

Comparison of TEA TIPA DEIPA three alcohol amine monomer cement grinding aids

As China's cement production capacity accounts for half of world production, the market for cement grinding aids is huge. Due to its strong technical strength, numerous independent intellectual property rights patents and years of production and operation experience, and extensive technical services, the company has a wide range of products, specialization and serialization, and has great technical and competitive advantages in the market. . Although domestic cement grinding aid companies have a large number, due to the low industry threshold, most of them do not have the technical strength they deserve. There is no independent research and development institution, but simple compounding, and product quality and technical support cannot Meet the needs of cement production companies. With the gradual compression of the profit margin of cement grinding aid enterprises, market competition is increasingly dependent on product quality, technical service and cost performance, and more and more relying on grinding and grinding new product research and development, the domestic cement additives industry will face more and more The challenge. How to deal with the challenges, I believe that Chinese companies only need to increase investment in scientific research and strive to develop and apply more at the forefront of technology. The two development directions should be worthy of attention to TEA's market share or always have a place. Therefore, domestic enterprises should gradually increase the modification of TEA and the research and development of alternative products while developing the optimization of the system, and develop new and efficient products, thus reducing the multi-process and stable quality control of the compounding. Research on direct synthesis of grinding aids (especially polymer synthetic grinding aids) has become a new development direction. Due to some limitations of the compound grinding aid, the direct synthesis grinding aid which directly assembles and modifies the target functional group by direct polymerization and modification by the polymerization reaction has obvious advantages. For example, it is possible to achieve both grinding aid dispersion and hydration induction by its surface-active dispersion properties and functional groups.

Research and application of modified triethanolamine and similar alternative products. Although DEIPA and TIPA have a tendency to replace TEA, TEA's market share has been a long-term advantage for a long period of time due to TEA's long history of application and greater market supply. Therefore, domestic enterprises should gradually increase the modification of TEA and the research and development of alternative products while developing the optimization of the system, and develop new and efficient products, thus reducing the multi-process and stable quality control of the compounding. 2) Research on direct synthesis of grinding aids (especially polymer synthetic grinding aids) has become a new development direction. Due to some limitations of the compound grinding aid, the direct synthesis grinding aid which directly assembles and modifies the target functional group by direct polymerization and modification by the polymerization reaction has obvious advantages. For example, it is possible to achieve both grinding aid dispersion and hydration induction by its surface-active dispersion properties and functional groups. Such as the addition of various polar groups, enhance the ability of the grinding aid to adsorb fine particles; adjust the proportion of each hydrophilic, lipophilic and other functional groups, so that the polymer can also reduce water, ventilating and other functions; The group makes the polymer possess the ability to chelate with metal ions, induce cement hydration, and highlight the ability of grinding aids. Expanding the sterically hindered group can directly slow down the agglomeration trend of cement fine particles, with better help. Grinding performance.

We can draw the following conclusions: (1) TEA, TIPA and DEIPA are good cement grinding aids and have good grinding aids.  (2) TEA has excellent early strength improvement, but it can not even weaken the late strength of cement; TIPA can not promote the early strength of cement, but can improve the characteristics of late strength; DEIPA has the advantages of both, for early strength。And the late strength has been significantly improved. (3) Due to the prevalence of chloride salt early strength agents and triisopropanolamine compared with triethanolamine, there are many advantages in terms of dispersibility, age enhancement, application conditions and relative cost, so the application is gradually increasing. , an increasingly widespread replacement of triethanolamine. (4) Diethanol monoisopropanolamine has a strong advantage in strength of both early strength and late strength, and will replace  triethanolamine and triisopropanolamine. At the same time, due to its low toxicity, DEIPA will not pollute the environment during  its use. It is in line with the current trend of low-carbon and environmental protection of cement grinding aids, and it is a new environmentally-friendly grinding aid. In addition, it has good compatibility with other additives, and industrial applications will inevitably become more and more.

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