The development status of DEIPA in China and its future development prospects and application in cement grinding aids China's DEIPA is mainly used in cement grinding aids. The dosage is 0.5 to 10,000 parts per million of cement. It can be combined with polyol, triethanolamine and harmless inorganic salts. It can be designed as a high-volume product. It can be used to enhance multi-mixed materials. It can also be designed as a low-volume product for high-grade cement to achieve a comprehensive effect of enhanced production

Triisopropanolamine (TIPA) is one of the commonly used components of cement grinding aids. Currently, TIPA is for silicates The strength and hydration properties of cement and Portland cement containing fine limestone particles have been studied.

Development and application prospects of cement grinding aid products The main market for the application of cement grinding aids, the development and application of new cement grinding aid products need to be strengthened, and its research focus has shifted to polymer synthesis technology. The synthetic polymer grinding aid combines various functional groups into the main chain structure of the polymer, and the smaller grinding aid effect and the compound grinding aid have a leaping improvement. Because the synthetic polymer grinding aid generally has a low effective amount, the grinding aid has obvious effect, and a suitable dosage range, the fluctuation of the dosage has little effect on the performance of the cement, and the production safety can be better ensured. Polymer grinding aids have low cost, good performance and high comprehensive benefits, and have broad application prospects.

Introduction to cement grinding aids and two principles Cement grinding aid is a kind of chemical additive to improve the grinding effect and performance of cement grinding. It can significantly increase the output of cement platform, the strength of cement at different ages, and improve its fluidity. The cement grinding aid can greatly reduce the phenomenon of electrostatic adsorption ball formation formed during the grinding process, and can reduce the re-agglomeration tendency of the ultrafine particles formed during the grinding process.

Cement grinding aid industry will usher in a more standardized development period The main function of cement grinding aid is to help the grinding in the grinding process. As a grinding aid manufacturer, we must first strengthen production management and determine appropriate internal control indicators

The effect of the combination of TEA and TIPA on Portland cement is similar to the superposition of the effects of the two monomer grinding aids alone, and there is no change in the hydration product due to the composite, and the hydration process is not significantly changed

Triisopropanolamine (TIPA) is one of the commonly used components of cement grinding aids. At present, TIPA has studied the strength and hydration properties of Portland cement and Portland cement containing fine limestone particles. However, TIPA's research on the hydration mechanism of limestone portland cement and its effect on the micro structure of Portland cement and limestone portland cement hardened paste is not comprehensive enough. Therefore, this paper focuses on the experimental research on the strength, hydration process and micro structure of hardened slurry of Portland cement and limestone Portland cement.

The use of triisopropanolamine cement grinding aids has good grinding effect and significantly improves the strength of the later period of the cement. The raw material triisopropanolamine is based in China and reduces the cost of cement grinding, and has broad application prospects.

The grinding characteristics of DEIPA in Portland cement grinding were studied. The effect of DEIPA on the grinding process and the comprehensive properties of the powder was investigated. The results showed that DEIPA promoted the grinding process of cement. The grinding time of the cement is shortened; the content of fine particles smaller than 5 μm is reduced, and the particle size distribution is changed. DEIPA increases the particle uniformity and roundness of the grinding sample, improves the agglomeration of the particles, and reduces the angle of repose of the cement powder. The powder refraction angle with 0.015% DEIPA was reduced from 41.5° (reference) to 36.5°.The DEIPA as portland cement admixutres have good advantages in cement grinding and increase cement 28 days strength.

Foreign cement grinding aid products, most of the manufacturers also a few models, the technology is relatively mature, and its formulations are also basically fixed, do not need to change the formula often in order to adapt to changes in cement and seasons, as the concrete admixture products It is a single or composite product such as amines(Diethanolisopropanolamine,Triethanolamine,Triisopropanolamine),polyols, and acetates.