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Triisopropanolamine and Triethanolamine

Views:61     Author:Sam Lee     Publish Time: 2018-03-18      Origin:Site Inquire

Triisopropanolamine [1,1,1′′amino-2-propanol, abbreviated as TIPA] is a product of three homologues, belonging to alkanolamines, an alcoholamine compound having an amine group and an alcoholic hydroxyl group. Because its molecule contains both amino group and hydroxyl group, it has comprehensive properties of amine and alcohol, and has a wide range of industrial applications. It is an important basic chemical raw material.

Performance:

1. Dispersion more better: When used in cement grinding aids, the basic principle of the role of grinding aids is the dispersibility of the two as surfactants due to the alkyl chain and hydroxyl group of triisopropanolamine. Heterogeneous spatial three-dimensional structure makes triisopropanolamine better than triethanolamine; dispersity is an important indicator of cement. In practical applications, triisopropanolamine has better effect on cement production Triethanolamine, and the improvement of the fluidity of the cement is also better than triethanolamine.

2. Early enhancement performance: Both are early strength agents, but triethanolamine reverses the early coagulation properties of the cement to achieve an early strong effect, while triisopropanolamine achieves an early strong effect by promoting early coagulation properties. Specifically, triethanolamine promotes the early hydration of aluminates, retards the hydration of silicates, increases the early strength, but shortens the setting time; triisopropanolamine promotes the water of ferric salts that are harder to hydrate The degree of dispersibility improves the degree of hydration of cement minerals, thereby improving the early strength.

3. Post-enhancement performance: Triethanolamine mainly promotes early strength, while triisopropanolamine greatly improves the post-strength of cement by promoting the hydration of difficult-to-hydrate minerals and improving the dispersibility of cement. Strength can be increased by 3 megapascals or even 5-12 megapascals.

4. Stable application performance: The application of triethanolamine has obvious limitation on its content. When the content exceeds 0.1%, the phenomenon of flash condensation sometimes occurs, which affects the coagulation characteristics of cement; and the blending of triisopropanolamine may occur. The amount range is from 0.001% to 0.2%, and with the increase of the amount, the enhancement effect will be gradually improved.


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