| Revista: | Maderas : ciencia y tecnología |
| Base de datos: | |
| Número de sistema: | 000544848 |
| ISSN: | 0718-221X |
| Autores: | Liu, Bowen1 Zhou, Yunxia1 Essawy, Hisham2 Chen, Qian1 Liang, Jiankun3 Zhou, Xiaojian1 Zhang, Jun1 Du, Guanben1 |
| Instituciones: | 1Southwest Forestry University, Yunnan key Laboratory of Wood adhesives and Glued products, Kunming. China 2National Research Centre, Department of Polymers and Pigments, Cairo. Egipto 3Kaili University, College of Architecture, Guizhou. China |
| Año: | 2022 |
| Volumen: | 24 |
| País: | Chile |
| Idioma: | Inglés |
| Resumen en inglés | A renewable tannin-based resin adhesive with enhanced bonding strength, good water resistance and long storage life has been prepared based on tannin, furfural and furfuryl alcohol coming from forest and agricultural products. Fourier transform infrared spectroscopy (FT-IR), Electrospray ionization mass spectroscopy (ESI-MS) and Differential scanning calorimetry (DSC) indicated that furfuryl alcohol and furfural can react with tannin under acidic conditions, with the involvement of -CH2-O- groups in the cross-linking of tannin-furfuryl alcohol-furfural resin (TFF) adhesive. The gel time of TFF was longer than that of tannin-furfural resin (TF), while the shear strength of TFF-bonded plywood suggested that the cured TFF adhesive acquired a performance superior to that of tannin (T) and TF adhesives. Furthermore, water resistance of TFF adhesive could be further enhanced with respect to T and TF adhesives through cross-linking with 3 % epoxy resin (EPR). |
| Keyword: | Cross-linking, EPR, Furfural, Furfuryl alcohol, Tannin-based adhesive. |
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