摘要
讨论了聚氨酯软泡沫塑料的隔热机理和导热系数计算模型,对影响隔热性能的因素,如温度、密度、挤压、吸水率、环境压力等进行了分析。在这些不同影响因素下对聚氨酯软泡沫塑料的隔热性能进行了测试,得到了聚氨酯软泡沫塑料在各影响因素下的热导率关系曲线。在试验的基础上,总结归纳了聚氨酯软泡沫塑料隔热性能的普遍性规律。为聚氨酯软泡沫塑料的隔热应用提供了参考依据。
The mechanism of transmit heat and the calculation model of the thermal conductivity of the soft polyurethane foam have been discussed and the affect factors of the thermal conductivity. Temperature, density, and squeeze, absorb water the rate, environment pressure etc, have been analyzed. On these influence of affect factors of thermal conductivity, the thermal conductivity of the soft polyurethane foam has been measured and the relation curve of thermal conductivity have been given. On the basis of the measured, the general relations of thermal conductivity of the soft polyurethane foam have been setup. The reference of design for the application of theramal insulation has been provided.
出处
《真空与低温》
2006年第3期180-184,共5页
Vacuum and Cryogenics
关键词
聚氨酯软泡沫塑料
隔热性能
导热系数
计算模型
机理
影响因素
soft polyurethane foam
thermal insulation property
thermal conductivity
calculated model
mechanism
affect factor
