Thermal properties of lignin- and molasses-based polyurethane foams

被引：55

作者：

Hatakeyama, H. ^{[2
]}

Kosugi, R. ^{[2
]}

Hatakeyama, T. ^{[1
]}

机构：

[1] Lignocel Res Co, Bunkyo Ku, Tokyo 1120015, Japan

[2] Fukui Univ Technol, Fukui 9108505, Japan

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 92卷 / 02期

关键词：

molasses; sodium lignosulfonate; thermal conductivity; PU foams;

D O I：

10.1007/s10973-007-8963-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Lignin- and molasses-based polyurethane (PU) foams with various lignin/molasses mixing ratios were prepared. The hydroxyl group in molasses and lignin is used as the reaction site and PU foams with various isocyanate (NCO)/the hydroxyl group (OH) ratios were obtained. Thermal properties of PU foams were investigated by differential scanning calorimetry (DSC), thermogravimetry (TG) and thermal conductivity measurement. Glass transition temperature (T-g) was observed depending on NCO/OH ratio in a temperature range from ca. 80 to 120 degrees C and thermal decomposition temperature (T-d) from ca. 280 to 295 degrees C. Mixing ratio of molasses and lignin polyol scarcely affected the Tg and Td. Thermal conductivity of PU foams was in a range from 0.030 to 0.040 W m(-1) K-1 depending on mixing ratio of lignin and molasses.

引用

页码：419 / 424

页数：6

共 37 条

[1] Effect of filler shape on mechanical properties of rigid polyurethane composites containing plant particles [J].