Rubber-like materials derived from biosourced phenolic resins

5th International Conference New Achievements in Materials and Environmental Science

材料科学;生态环境科学

Amaral-Labat, G.^1,2 ; Grishechko, L.I.^1,3 ; Lenze Silva, G.F.B.^2 ; Kuznetsov, B.N.^3,4 ; Fierro, V.^1 ; Pizzi, A.^5,6 ; Celzard, A.^1

Institut Jean Lamour, UMR Université de Lorraine, CNRS No 7198, ENSTIB, 27 rue Philippe Séguin, CS 60036, Épinal Cedex

88026, France^1

University of São Paulo, Department of Metallurgical and Materials Engineering PMT-USP, Cidade Universitária, Avenida Mello Moraes, 2463, São Paulo, SP

CEP 05508-030, Brazil^2

Institute of Chemistry and Chemical Technology, SB RAS, 50/24, Akademgorodok Street, Krasnoyarsk

660036, Russia^3

Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk

660041, Russia^4

LERMAB, Université de Lorraine, 27 rue Philippe Séguin, CS 60036, Épinal Cedex

88026, France^5

Dept. of Physics, King Abdulaziz University, Jeddah, Saudi Arabia^6

关键词: Autocondensation;    Bark extracts;    Cyclic compression;    Elastic properties;    Flame propagation;    Quasi-static;    Rubberlike materials;    Stress strain characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/879/1/012013/pdf
DOI  :  10.1088/1742-6596/879/1/012013

来源: IOP

【 摘 要 】

The present work describes new gels derived from cheap, abundant and non-toxic wood bark extracts of phenolic nature, behaving like elastomers. Especially, we show that these materials might be used as rubber springs. Such amazing properties were obtained by a quite simple synthesis based on the autocondensation of flavonoid tannins in water at low pH in the presence of a plasticizer. After gelation and drying, the materials presented elastic properties that could be tuned from hard and brittle to quite soft and deformable, depending on the amount of plasticizer in the starting formulation. Not only the materials containing the relevant amount of plasticizer had stress-strain characteristics in quasi-static and cyclic compression similar to most commercial rubber springs, but they presented outstanding fire retardance, surviving 5 min in a flame at 1000°C in air. Neither flame propagation nor drips were noticed during the fire test, and the materials were auto-extinguishable. These excellent features make these materials potential substitutes to usual organic elastomers.