【摘要】 本文介绍低温绝热用硬质聚氨酯泡沫塑料的力学、热学性质及其成型工艺。分析了影响聚氨酯泡沫塑料低温性能的各种因素并给出了大量的实验数据和曲线。最后叙述了聚氨酯泡沫塑料的低温绝热结构及应用情况。更多还原

【Abstract】 This thesis introduces the moulding technique, mechanical and thermal properties of the rigid polyurethane foams used in cryogenic insulation. It provides a great number of experimental data and curves and analyses various factors affecting cryogenic properties of polyurethane foams. Last, the structures of polyurethane foams used in cryogenic insulation and their applications are discussed.更多还原