Introduction to Polyurethane Delayed Catalysts

Who has an introduction to polyurethane delay catalysts? Delayed catalyst, also known as polyurethane delayed catalyst, is a special type of polyurethane catalyst that has a longer operating time and does not affect the later curing of the product compared to conventional catalysts. Delayed catalysts themselves are also a type of positive catalyst. Adding them to a non catalyst system will only accelerate the reaction rate of the system and will not inhibit the reaction rate. Delay catalysts are widely used in polyurethane rigid foam, polyurethane soft foam, molded foam, polyurethane adhesive, coating, elastomer, soles slurry and other fields. Generally speaking, delayed catalysts can be divided into delayed foaming catalysts and delayed gel catalysts. Both can be widely used in the field of polyurethane foam, while delayed gel polyurethane catalysts are commonly used in the field of CASE. Thermosensitive catalysts are also a type of delayed catalyst. Delayed amine catalyst A-300 is a delayed crosslinking catalyst designed specifically for the production of polyurethane for automotive seat cushions and backrests. The production of foamed plastics will open more holes, but at the same time maintain the stability of the foaming formula, and will not collapse. For the use of systems with modified ingredients, quick reaction and slow flow, the fluidity can be improved. Delayed amine catalyst C-225 is an amine catalyst used for rapid demoulding of high resilience polyurethane foam. This catalyst can balance the foam formation reaction and ripening reaction, optimize the fluidity of the reaction mixture, and shorten the demoulding time at the same time. So delayed amine catalyst C-225 is the best additive for the production line of turntable car seats. Delayed amine catalyst A-400 is a water-soluble tertiary amine composite catalyst used for molding polyurethane foam, which has delayed catalytic effect, and is specially designed for production of automobile seat cushion. The delayed amine catalyst A-400 can be metered separately by mixing with water or polyether polyols. It has good effect on lasting pouring time and increasing open hole foam structure. The delayed amine catalyst A-400 and Dongguan Guangzhou delayed amine catalyst A-300 are both new types of delayed action catalysts.