Aminobutriol: The 'Stable Guardian' of Waterborne Coatings

Release time:

2026-03-02


In today's coatings industry, which pursues both high performance and environmental protection, Tris base is becoming an indispensable key additive in water-based coating formulations due to its unique multifunctional properties. Aminobutriol not only forms a stable hydrogen bond network through its multi hydroxyl structure, effectively preventing the aggregation and sedimentation of pigments and fillers, but also maintains the acid-base balance of the coating system, significantly reducing the emission of volatile organic compounds. Aminobutriol is moving from laboratory to industrial application, becoming an important force in promoting the green transformation of the coating industry.

 

Tris base

 

1、 Multi hydroxyl structure endows excellent dispersibility

 

The molecular structure of Tris is rich in three hydroxyl functional groups, which gives it excellent dispersion stability in water-based coating systems. Hydroxyl functional groups can form hydrogen bond networks with various components such as pigments, fillers, resins, etc. in coatings, effectively reducing the surface tension of pigments and fillers and preventing their aggregation and precipitation. This hydrogen bonding not only improves the dispersion uniformity of pigments in coatings, but also significantly enhances the storage stability of coatings, avoiding quality problems such as delamination and settling.

 

2、 Stable pH regulation function ensures system balance

 

Water based coating systems need to remain stable in alkaline environments (pH 7.5-9.5), and tromethamine, as an efficient pH buffer, can maintain the acid-base balance of the system over a wide pH range. Its buffering range is mainly concentrated between pH 7.0 and 9.0, which is particularly suitable for the pH adjustment needs of water-based coatings. The pKa value of tromethamine is 8.1, which can form a buffering pair with acidic components in the system and effectively resist pH fluctuations caused by external factors.

 

In the process of coating storage and use, the buffer capacity of tromethamine can prevent lotion demulsification, thickening failure and other problems caused by the decline of system pH value. Meanwhile, alkaline environment can also inhibit the growth and reproduction of microorganisms, extending the shelf life of coatings. The addition of tromethamine enables the coating system to maintain stable performance in various stages such as storage, transportation, and construction, ensuring the reliability of the final coating quality.

 

3、 Complete replacement of alpha carbon enhances color stability

 

Another key feature of the molecular structure of tromethamine is the complete substitution of the alpha carbon adjacent to the amino group, which endows it with excellent antioxidant properties. In the coating system, pigments and resins are prone to free radical oxidation reactions under environmental factors such as light and oxygen, leading to yellowing and discoloration of the coating film. The complete substitution structure of α - carbon in tromethamine can effectively inhibit the free radical oxidation chain reaction, thereby significantly improving the color stability of the coating.

 

4、 Hubei Xindesheng: Professional producer of tromethamine

 

In the production and application of tromethamine, Hubei Xindesheng Material Technology Co., Ltd. is highly recognized by customers for its professional technical strength and strict quality control system. The company uses proprietary process technology to produce aminobutriol products, which have the advantages of uniform particle size between crystals, low clumping, smooth particle structure, stable purity, and small batch differences, and can provide stable and reliable product supply for coating enterprises.

 

Product packaging

 

Xindesheng's tromethamine products are not only suitable for the field of water-based coatings, but also widely used in various fields such as biological buffering agents, pharmaceutical intermediates, surfactants, etc. The company always insists on providing high-quality products and services, providing strong technical support for customers in the development and application expansion of coating formulas through fully traceable raw materials, reliable and stable global supply, and professional testing systems.