South China has been rainy recently, and many areas have even been hit by floods. After the rainy season, many friends' houses need to be repaired, rectified, and decorated.
Paint is the simplest finishing method, with short construction period, high work efficiency, low dead weight, low price and convenient maintenance. Moreover, the paint can not only put a beautiful coat on the building, but more importantly, form a protective film on the surface of the article to achieve the functions of anti-rust, anti-corrosion and waterproof.
Paint related chemicals: dodecanol ester
With the increasing awareness of environmental protection, water-based latex paint as one of the decorative materials has become the main material of the interior wall decoration of the building, and the application rate of the exterior wall decoration of the building has also reached 35%.
However, many latex polymers used in latex paints cannot form films at room temperature. In order to form a complete coating film for latex paints, a film-forming aid capable of coalescence must be added.
Film-forming aids are usually very soluble and evaporate very slowly, which can soften the latex polymer particles, make these particles coalesce and fuse together, and form a better film. In addition to lowering the minimum film-forming temperature of latex paints, the film-forming aids can also improve the film properties of latex paints such as weather resistance, scrubability, and color development of the coating.
Dodecyl alcohol ester is widely used in building and decoration materials in my country and is an ideal film-forming aid.
Compared with other film-forming additives, dodecyl alcohol ester has many advantages:
1. It has low water solubility and is easily absorbed by latex ions. It can be directly contacted, and it is easier to swell the rubber particles;
2. The rate of volatilization is low, and it remains in the latex paint coating before film formation. The effect of the solvent will not be affected by the volatilization of water, and the continuity of film formation is good;
3. With proper volatility, it will completely evaporate in a short time after the latex paint is formed, and will not affect the expected hardness and gloss of the latex paint formula design.
Latex paint using dodecyl alcohol ester as a film-forming aid, the latex particles are more tightly and continuously bonded during film formation, can form a smooth and uniform paint film, have excellent leveling and sag resistance, can be harsh Good paint film under temperature and humidity conditions
