Introduction of polyurethane delay catalyst
Who has the introduction of polyurethane delay catalyst? Delayed catalyst, or polyurethane delayed catalyst, is a special type of polyurethane catalyst that has a longer operating time than conventional catalysts and does not affect the later curing of the product.
Delayed catalysts are also a type of positive catalyst, and when added to a catalyst-free system, they will only speed up the reaction rate of the system, not inhibit it. Delayed catalysts are widely used in polyurethane rigid foams, polyurethane flexible foams, molded foams, polyurethane adhesives, coatings, elastomers, shoe sole pastes, etc.
Generally speaking, delayed catalysts can be divided into two types: delayed foam catalysts and delayed gel catalysts, both of which can be widely used in polyurethane foam field, while delayed gel type polyurethane catalysts are mostly used in CASE field.
Thermosensitive catalysts are also a kind of delayed catalysts. Delayed amine catalyst A-300 is a delayed cross-linking action catalyst designed for the production of polyurethane for car seat cushions and backrests. It produces foam that is more porous while maintaining the stability of the foam formulation without collapsing, and improves flow for systems that use modified ingredients that react quickly and flow slowly. Delayed amine catalyst C-225 is an amine catalyst for fast release high resilience polyurethane foams. This catalyst allows a balance between foam formation and maturation reactions, optimizes the flow of the reaction mixture, and reduces the demolding time at the same time.
Therefore, delayed amine catalyst C-225 is the best additive to be used in turntable type car seat production line. Delayed amine catalyst A-400 is a water-soluble tertiary amine compound catalyst with delayed catalytic effect for molded polyurethane foam, specially designed for automotive seat cushion production. Delayed amine catalyst A-400 can be dosed alone with water or polyether polyol.
It is good for long lasting pouring time and increasing open cell foam structure. Delayed amine catalyst A-400 is the same new type of delayed action catalyst as delayed amine catalyst A-300.
