Open Access

ARTICLE

Dynamic Foaming Behaviour of Polyurethane vs Tannin/ Furanic Foams

M.C. Basso^1,2, A. Pizzi^1,3,*, A. Celzard⁴

1 Laboratory of Studies and Research on Wood Material(LERMAB), University of Lorraine, 27 rue Philippe Seguin, CS60036, 88026, Epinal, France
2 Silva-Indunor Group, Cerrito 1136, C1010AAX , Buenos Aires, Argentina
3 King Abdulaziz University, Abdullah Sulayman, Jeddah 22254, Saudi Arabia
4 Jean Lamour Institute (IJL), University of Lorraine, 27 rue Philippe Seguin, CS60036, 88026, Epinal, France

* Corresponding Author:

Journal of Renewable Materials 2013, 1(4), 273-278. https://doi.org/10.7569/JRM.2013.634125

Received 06 October 2013; Accepted 31 October 2013;

Abstract

: Simultaneously monitoring the variation of temperature, foam rising rate, internal foam pressure and dielectric polarisation, the latter being a direct measure of setting and curing of a thermosetting foam, has allowed the comparison of the dynamic variation of determinant parameters of polyurethane foams and of tannin/furanic foams of different formulation and characteristics. This monitoring provides a good description of the process and possible characteristics of the prepared foam and constitutes an invaluable tool for foam formulation. Such a comparison indicates that fundamental differences, but also similarities, exist between the foaming processes of the two classes of foam. The dynamics of the foams were compared for (i) a tannin/furanic foam formulation using formaldehyde and a low-boiling blowing agent (STD); (ii) a tannin/ furanic foam containing neither formaldehyde nor blowing agent (MN65)., (iii) the same as (i) but with the addition of a small proportion of surfactant (MN8’), and (4) a commercial PUR foam formulation.

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Keywords

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