The main component of polyurethane foam and the technique were studied to develop a rigid polyurethane foam(PUF) which could be used in the sandwich structure.

• 针对夹层结构的特点,通过对聚氨酯泡沫的各主要组分及发泡工艺的研究,研制出了一种适用于夹层结构的硬质聚氨酯泡沫。