Against the backdrop of advocating green and low-carbon development, water-based coatings are gradually replacing traditional solvent based coatings with their environmental advantages such as low VOC (volatile organic compounds), low pollution, and easy cleaning, becoming the mainstream choice in the fields of construction, furniture, automotive, and industrial coating. However, while water-based systems bring environmental benefits, they also face technical challenges such as slow drying speed, weak film-forming performance, and low curing efficiency. How to improve the comprehensive performance of water-based coatings without sacrificing environmental characteristics? The introduction of CAPS buffer provides an effective solution to this problem.

CAPS buffer

CAPS: Not just a buffering agent, but also a 'performance catalyst' for water-based coatings

CAPS， Cyclohexylamine sulfonic acid is a high-performance Good's buffer widely used in the fields of biochemistry and industry. Its pH range is 9.7-11.0, and it has excellent buffering ability in the alkaline range. In recent years, the application of CAPS in water-based coatings has gradually received attention, especially in water-based curing agent systems. It not only plays a core role in regulating the acid-base environment, but also deeply participates in the curing reaction process, significantly improving the overall performance of coatings.

Accelerate curing reaction and improve construction efficiency

In two-component water-based coating systems, the crosslinking reaction between resin and curing agent is the key to film formation. However, pH fluctuations in the reaction system can directly affect the activity and reaction rate of the curing agent. CAPS, with its stable buffering capacity, can effectively control the acidity and alkalinity of the reaction system, avoiding reaction delays or incompleteness caused by local pH imbalances. By maintaining a suitable alkaline environment, CAPS promotes the activation and cross-linking polymerization of curing agent molecules, significantly accelerating the curing speed of coatings.

Enhance the durability of the coating and extend its service life

Fast and sufficient curing not only improves construction efficiency, but also directly affects the final performance of the coating. With the assistance of CAPS, the curing reaction is more uniform and thorough, forming a denser cross-linked network, which significantly enhances the hardness, adhesion, water resistance, and chemical corrosion resistance of the coating. This enables water-based coatings to maintain stable performance in humid, high-temperature, or corrosive environments, effectively extending the service life of the coating and reducing resource waste and maintenance costs caused by frequent renovations.

Compatible with environmental protection systems, strengthening green advantages

The core competitiveness of water-based coatings lies in their environmental attributes, and the selection of additives must match this characteristic. As a buffer with good water solubility and high biocompatibility, CAPS can be well compatible with resins, lotion, additives and other components in the water-based system, and will not introduce harmful substances or produce side reactions. Its addition not only does not weaken the environmental advantages of water-based coatings, but also optimizes the reaction process, reduces the residue of unreacted monomers, lowers the potential release risk of harmful substances, and further strengthens the green attributes of the product.

Product packaging

Hubei Xindesheng: Providing high-quality CAPS raw materials for water-based coatings

Hubei Xindesheng Material Technology Co., Ltd. focuses on the research and production of biological buffering agents. The CAPS products produced by the company adopt advanced synthesis technology, with high purity, low impurities, and excellent batch stability. The product has been widely used in various fields such as water-based coatings, biopharmaceuticals, electrophoresis buffers, etc., and has been widely recognized by customers. Contact us immediately to obtain product technical information, samples, and application support, and work together to promote water-based coatings towards greater efficiency.