In order to reducing the cost,MDI-type polyurethane(PU)plastic racetrack material used in sports was manufactured,by increasing the percent of NCO and adjusting the B-component in the raw materials.

• 以降低成本为目的,提高了预聚体的NCO质量分数,同时对B组分中的原材料进行了选择与调整,研制了MDI型双组分聚氨酯塑胶跑道铺装材料。