As an environmentally friendly coating, waterborne coatings have been widely used in modern industry and construction. Its unique design principle is based on in-depth research on waterborne systems and optimization of coating performance.
The core of waterborne coatings is to replace traditional organic solvents with water as a dispersion medium. This change brings many advantages. The presence of water greatly reduces the emission of volatile organic compounds (VOCs) during the construction of coatings, significantly reducing the harm to the environment and human health, and meeting the increasingly stringent environmental protection requirements.
In the design of waterborne coatings, polymer emulsion is a key component. It is made by emulsion polymerization process, and the monomer is dispersed in water through a special polymerization reaction to form a stable emulsion. These polymer emulsions have certain cohesion and adhesion, and can form a uniform and continuous coating on the coated surface. In order to improve the performance of the coating, various additives are also added. For example, dispersants can make pigments and fillers evenly dispersed in the system to avoid agglomeration, thereby ensuring the color uniformity and stability of the coating; rheological additives help adjust the rheological properties of the coating so that it can achieve the ideal coating effect under different construction conditions.
In addition, the design of water-based coatings also focuses on compatibility with the substrate. According to different substrate surface characteristics, such as hydrophilicity or hydrophobicity, appropriate emulsion and additive systems are selected. This can achieve good adhesion, so that the coating is firmly attached to the substrate to prevent peeling and cracking.
In the process of research and development and application of water-based coatings, new formulas and processes are constantly explored through experiments and research to meet the needs of different users for coating performance, such as water resistance, wear resistance, corrosion resistance, etc.