PHOTOACOUSTIC CHARACTERIZATION OF THE EFFECTS OF AIR INCLUSION ON THE THERMAL-PROPERTIES OF FOAMED POLYURETHANE

被引：11

作者：

LEITE, NF ^{[1
]}

MIRANDA, LCM ^{[1
]}

机构：

[1] INST POLITECN RIO DE JANEIRO,BR-28600 NOVA FRIBURGO,RJ,BRAZIL

来源：

JOURNAL OF MATERIALS SCIENCE | 1992年 / 27卷 / 20期

关键词：

D O I：

10.1007/BF00541605

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The usefulness of the open photoacoustic cell technique for investigating the effects of air inclusions on the thermal properties of foamed polyurethane is demonstrated. It is shown that the thermal diffusivity and thermal expansion coefficients increase with decreasing values of the resin to catalyst ratio, which corresponds to greater air inclusion in the resin.

引用

页码：5449 / 5452

页数：4

共 22 条

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