What are the advantages of organobismuth polyurethane catalyst compared to other types of catalysts? Advantage?
1. Safe and environmentally friendly, can replace lead, mercury and tin which are being abolished by legislation;
2. Yes Better hydrolysis resistance, reduced selectivity of reaction with water, and reduced side reactions between water and NCO groups in aqueous PU dispersions;
3. Promote NCO/OH reaction, avoid NCO side reactions, and reduce 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 bismuth and zinc has a synergistic effect, making the formula Make production more flexible, reduce energy consumption, and increase profits;
6. Can be used alone or in combination with amines or other organometallic compounds.
OrganobismuthPolyurethane catalyst is mainly a thermoplastic linear Structure, it has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials, and has smaller compression deformation. It has good heat insulation, sound insulation, earthquake resistance and anti-toxic properties. Therefore it is used as packaging, sound insulation and filtering materials. Rigid polyurethane plastic is lightweight, has superior sound and thermal insulation properties, is resistant to chemicals, has good electrical properties, is easy to process, and has low water absorption. It is mainly used in structural materials for construction, automobiles, aviation industry, and thermal insulation. The performance of polyurethane elastomer is between that of plastic and rubber, with oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness and elasticity. Mainly used in shoemaking industry and medical industry. Polyurethane can also be used to make adhesives, coatings, synthetic leather, etc.
Now that the domestic environmental protection pressure is increasing, various companies have begun to seek transformation, with the creation of green and environmentally friendly polyurethane production processes as the main development direction, and the gradual elimination of backward production capacity. It is expected that in the next few years, my country’s polyurethane products will be mainly used in the construction field, furniture field and sports field.
