The incombustibility of the military rigid polyurethane (PU) foam materials was studied. The optimum formula of compound flame retardant was determined by screening and orthogonal test.
It's generally made from ethyl vinyl acetate (EVA) foam or polyurethane (PU) and in many cases is supplemented by air or gel inserts.
它们通常由乙烯基醋酸乙脂(EVA)泡沫或聚氨酯(PU)材料制成，很多情况还填充了空气或胶体。
3
A polyurethane (PU) rigid foam was prepared, using PAPI and the polyether polyols deried from starch ethylene glycol glycoside (EGG) as the main materials, and the foaming processing was studied.