聚氨酯泡沫塑料在压缩加载过程的红外辐射研究  

Study on Infrared Temperature Rising of Polyurethane Foams Under Compression Loading

作　　者：周红萍[1] 温茂萍[1] 李丽[1] 张伟斌[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《红外技术》2009年第11期672-675,共4页Infrared Technology

摘　　要：对5种不同密度的聚氨酯泡沫塑料进行了等应变速率的单轴压缩加载实验,监测了过程中的红外辐射信息变化规律。实验结果表明:聚氨酯泡沫塑料在压缩加载过程中,前期表现为整体温升,后期红外辐射温度增幅变大,并在样品中间出现局部升温更显著的特征。样品的升温幅度与其密度存在正相关的线性关系。0.5 g/cm3的聚氨酯泡沫塑料在压缩至25%应变时温升达到了1.8℃。The uniaxial compression loading experiments under constant rate of five kinds of polyurethane foams of different densities were undone, and infrared radiation was tested in the compression progress. The result shows that the polyurethane foams samples have slowly intergrate temperature rising in the early period, while the amplification of infrared radiation temperature rising was increased and samples had local heat pots in the middle of samples in the later period. The temperature rising have linear relationship with samples＇ densities. The temperature rising of polyurethane foams with density of 0.5g/cm^3 is up to 1.8℃ while polyurethane foams is compressed to 25%.

关 键 词：聚氨酯泡沫塑料 压缩 红外辐射 密度 

分 类 号：TN219[电子电信—物理电子学]