Organic bismuthCatalyst Bismuth environmentally friendly catalyst assembly commonly used in the polyurethane industry, including bismuth neodecanoate, bismuth laurate, bismuth isooctanoate, bismuth naphthenate, etc. Among them, bismuth neodecanoate has the best catalytic effect and its hydrolysis resistance is better than other bismuth salts. Our company specializes in supplying bismuth neodecanoate organobismuth catalyst, brand DY-20.
Type: Environmentally friendly polyurethane catalyst
Main ingredient: carboxylic acid Bismuth
Deyin Chemical Brand: DY-20
Bismuth content: 20±0.5%
Application:
DY-20 is A high-efficiency organobismuth catalyst, which has the advantages of low cost, easy handling, low toxicity and low radioactivity. Compared with organotin catalysts, DY-20 has a shorter induction period, a gradual increase in viscosity, and more selective catalysis of NCO groups. Good, the finished product has more bubbles and better mechanical properties. At the same time, DY-20 can also replace highly toxic catalysts such as organic lead and organic mercury.
DY-20 can be used in the production of polyurethane synthetic leather slurry, coatings, adhesives, sealants, track glue, elastomers and foam plastics.
Compared with organotin products, DY-20 is environmentally friendly, non-toxic and has good water resistance, and can be used in industries that require environmental protection and hydrolysis stability.
DY-20 can be used in room temperature/heated curing systems.
Advantages:
1. Safe and environmentally friendly, can replace lead and mercury and are being Tin abolished by legislation;
2. It has better hydrolysis stability and reduces the selectivity of reaction with water. In aqueous PU dispersion, it reduces Side reactions between water and NCO groups;
3. Promote NCO/OH reaction, avoid NCO side reactions, and reduce the generation of CO2;
4. In a one-component system, liberate the amine shielded by water instead of promoting the reaction between NCO and water;
5. The combination of organic bismuth and zinc has a synergistic effect, making the formulation and production more flexible and reducing energy consumption. Increase profits;
6. Can be used alone or in combination with amines or other organic metal compounds.
