Structure and properties of rigid foams derived from quebracho tannin

被引：35

作者：

de Yuso, A. Martinez ^{[1
]}

Lagel, M. C. ^{[1
,2
]}

Pizzi, A. ^{[2
,3
]}

Fierro, V. ^{[1
]}

Celzard, A. ^{[1
]}

机构：

[1] UMR CNRS Univ Lorraine 7198 ENSTIB, Inst Jean Lamour, F-88026 Epinal, France

[2] EA Univ Lorraine 4370 ENSTIB, LERMAB, F-88026 Epinal, France

[3] King Abdulaziz Univ, Dept Phys, Jeddah 21413, Saudi Arabia

来源：

MATERIALS & DESIGN | 2014年 / 63卷

关键词：

Quebracho tannin; Organic foam; Characterisation; Physical properties; Thermal conductivity; MECHANICAL-PROPERTIES; PARAMETERS; INSULATION;

D O I：

10.1016/j.matdes.2014.05.072

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The first highly porous organic rigid foams based on condensed tannin extracted from quebracho tree (Schinopsis sp.) are reported. Samples having different densities have been prepared and characterised. Their porous structure and physical properties have been compared with those of foams prepared in similar conditions but based on mimosa or pine tannins. We show that the properties of quebracho foams are comparable, and in some cases better, than those made from other tannins. Quebracho and mimosa present very similar behaviours, attributed to the fact that the corresponding flavonoid units have identical reactive A-rings. In contrast, pine foams behave differently, due to their different A-ring. The results indicate that quebracho is thus an excellent alternative to mimosa for producing thermally insulating tannin foams presenting good mechanical performances. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：208 / 212

页数：5

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