Organobismuth compounds have green and safe properties such as low cost, easy handling, low toxicity and low radioactivity. In the past 10 years, both the synthesis of new organobismuth compounds and the research of organobismuth compounds in organic synthesis, catalysts and biomedicine have been at a leading level. Rapid development stage. Organic bismuth products produced in advanced foreign countries have a history of more than 30 years and have been supplied to the European and American markets for many years. These environmentally friendly organobismuth catalysts can be cured at room temperature or under heat, making them an excellent alternative to toxic lead, mercury and tin products.
Introduction to organic bismuth:
1. It is safe and environmentally friendly, and can replace lead, mercury and tin, which is being abolished by legislation;
2. It has better stability against hydrolysis and reduces the selectivity of reaction with water. In water-based PU dispersions, reduce the side reactions between water and NCO groups;
3. Promote NCO/OH reaction, avoid NCO side reactions, and reduce the generation of CO2;
4. In single-component systems , liberate the amines shielded by water instead of promoting the reaction between NCO and water;
5. The combination of bismuth and zinc has a synergistic effect, making the formulation and production more flexible, reducing energy consumption, and increasing profits;
6. Can be used alone or in combination with amines or other organic metal compounds;
Organobismuth environmentally friendly and odorless polyurethane runway non-foaming catalyst:
1. Product description: This product appears as a light yellow transparent liquid , metal content 19.7-20.7%; density 1.01g/cm3 (25℃), viscosity 210mPa.s (25℃); has a special compound smell and is easily soluble in general polyurethane raw materials such as polyether, polyester polyol, etc.
This product does not contain toxic ingredients such as eight heavy metals, azo, and phthalates. The polyurethane material synthesized using this product can pass strict environmental protection regulations in the United States and the European Union. It is an ideal substitute for eliminating traditional organotin, mercury, lead and other catalysts.
