The Development of a Low Odor and High Flame Retardant Polyurethane Foam for Bus Seat
A low odor and high flame retardant polyurethane foam for bus seat was prepared using low volatile organic compound(VOC)polyether,low VOC polymer polyol,crosslinking agent,reactive catalyst,silicone foam stabilizer and opening agent as component A,and a modified MDI(polyisocyanate)as component B.The effects of polyether polyol,polymer polyol and crosslinking agent on the properties of foam product were studied,and the flame retardancy and VOC content of the product were detected.The results showed that the mechanical properties of the product were the best when the dosage of the polyether polyol 10LD8005,polymer polyol HPOP40 and diethanolamine were 20 parts,30 part and 1 part,respectively.The polyurethane foam products for bus seat produced by this system material could meet the requirements of VOC of the standard ISO 12219-2:2012,and the flame retardancy meet the standard requirements of Flammability Characteristics of Interior Materials for Commercial Buses.