Organotin drier is a kind of organotin compound, which is mainly used as drier of polyurethane, polyester, acrylate and other resins, and can also be used in coatings and inks and other fields. Commonly used organotin catalysts include dibutyltin dilaurate, dimethyltin dilaurate, etc. At present, organotin catalysts have been replaced by environment-friendly tin catalysts. Environment-friendly tin catalysts do not have nine types of organotin restricted by the European Union, and have a shorter service life. Compared with organotin, the post-curing effect is slightly worse. Organotin driers are a class of chemical substances used in paints and paints. They have triple functions of catalysts, desiccants and bacteriostats, and can promote the drying, curing and corrosion protection of paints and paints. Such driers include organic stannate, organic tin grease, organic tin oxide, organic tin pyruvate, etc., among which organic tin grease and organic stannate are the two most common types.
Organotin driers are widely used and are widely used in the production process of paints and coatings. The addition of organotin driers can improve the drying speed of paints , Shorten offline time and increase productivity. In addition, organotin driers can also improve the hardness, adhesion, wear resistance and weather resistance of coatings, and at the same time have antibacterial effects, prolonging the service life of coatings and paints.
However, since organotin driers have certain risks of toxicity and environmental pollution, corresponding safety measures need to be taken during use and disposal. In addition, some countries and regions also have certain restrictions on the content of organotin driers used in coatings and paints.
