Open Access

ARTICLE

Formaldehyde-Free Prorobitenidin/Profi setinidin Tannin/ Furanic Foams Based on Alternative Aldehydes: Glyoxal and Glutaraldehyde

X. Li¹, A. Pizzi^1,2,*, X. Zhou^3,*, V. Fierro⁴, A. Celzard⁴

1 ENSTIB-LERMAB, University of Lorraine, 27 rue Philippe Séguin, BP1041, 88051 Epinal cedex 9, France
2 Dept. of Physics, King Abdulaziz University, Jeddah, Saudi Arabia
3 Yunnan Key Laboratory of Wood Adhesives and Glue Products, Southwest Forestry University, Kunming, P.R. 650224, China
4 V. Fierro, A. Celzard, IJL-ENSTIB, University of Lorraine, 27 rue Philippe Séguin, BP1041, 88051 Epinal cedex 9, France

* Corresponding Authors: ;

Journal of Renewable Materials 2015, 3(2), 142-150. https://doi.org/10.7569/JRM.2014.634117

Received 01 June 2014; Accepted 13 August 2014;

Abstract

Tannin/furanic foams, typically 95% composed of materials of natural origin such as prorobinetinidin/ profi setinidin tannins and furfuryl alcohol, are potential alternatives to oil-based synthetic foams such as phenol-formaldehyde, and polyurethane foams. This article describes the development of second generation tannin/furanic foams, which are not only formaldehyde free, but also use nonvolatile, nontoxic aldehydes. Both glyoxal and glutaraldehyde were tried to substitute formaldehyde in tannin/furanic foams. The physical properties of these new foams are described and discussed. It was found that glutaraldehyde can totally substitute formaldehyde during tannin/furanic foam preparation, but that glyoxal cannot. The optimized proportion to prepare such new foams is tannin:glutaraldehyde = 30:4 by weight. Formaldehyde-free glutaraldehyde-containing foams are open-celled and present good compression resistance and high thermal insulation.

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Keywords

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