A brief discussion on polyurethane catalysts

a-1 is a solution composed of 70% bis(dimethylaminoethyl) ether and 30% dipropylene glycol , mainly used for soft polyether polyurethanefoam plasticproduction of foaming tertiary amine catalyst, also known as front-stage catalyst. a-1 has a particularly strong catalytic effect on water, so it can reduce the foam density. it has catalytic activity for both polyurethane foaming and gelling reactions, and is especially effective for foaming reactions. it…