polyurethane rigid foam catalyst use

polyurethane catalyst products are as follows:

dy-1: standard foam polyurethane catalyst, 70% bdmaee dissolved in glycol
dy-1p: bis(dimethylaminoethyl) ether, high-efficiency foaming catalyst
dy-5: standard foaming polyurethane catalyst for rigid foam
dy-9: stannous octoate, used in polyurethane foam, case and other fields
dy-12: dibutyltin dilaurate, used in polyurethane foam, case and other fields
dy-15: standard potassium isooctanoate catalyst, used in the production of spray rigid foam, pir foam and other products
dy-33: 33% triethylenediamine solution , widely used in the preparation of polyurethane foam and also in the production of polyurethane adhesives
dy-41: polyurethane trimerization catalyst, used in many fields of polyurethane rigid foam
dy-46: potassium acetate solution, for the reaction of isocyanate trimerization to form polyisocyanurate has strong catalytic efficiency
dy-50: quaternary ammonium salt, which provides outstanding foam aging performance and is suitable for many fields that require improved production efficiency
dy- 54: polyurethane trimerization catalyst/epoxy accelerator
dy-83: gel co-catalyst for molding and hard foam, promotes skin curing
dy-bdma: benzyldimethylamine, polyurethane block soft foam, hard foam, adhesive and coating catalyst
dy-dmea: dimethylethanolamine, weak balance catalyst, providing earlier milky time
dy-dbu: strong gel polyurethane catalyst
dy-tmeda: tetramethylethylenediamine, a milder foaming/gelling catalyst
dy-tmeda: tetramethylpropylenediamine, used for various foaming/gelling equilibrium catalysts
dy-tmhda: foaming/gel balanced polyurethane catalyst, improves surface curing and adhesion
the polyether component of the polyurethane rigid foam catalyst is purified by distillation to remove moisture; the polyether component is added to remove water there are many types of agents; for polyether components, choose a good catalyst, such as lead. the catalytic effect is to catalyze the reaction of hydroxyl groups faster than that of catalytic water; if it is a paint, pay attention to the substrate treatment and environmental humidity; if it is pouring, it must be controlled good temperature; if it is foaming, you must choose a suitable and reasonable amount of foaming agent.