Eco-friendly Lignocellulosic Particleboards Bonded with Free-formaldehyde Itaconic Polyamidoamine Epichlorohydrin/soy Protein Adhesive | ||
| Egyptian Journal of Chemistry | ||
| Article 88, Volume 63, Issue 3, March 2020, Pages 961-972 PDF (2.36 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2019.14090.1869 | ||
| Authors | ||
| Maha Sultan* ; Mona Nassar; A.A Abdel Hakim; Youssef Refaat | ||
| Packaging Materials Department, National Research Centre, Cairo, Egypt. | ||
| Abstract | ||
| HEREIN, we demonstrate a promising route to prepare an eco-friendly particleboards (Pb) bonded with novel itaconic polyamidoamine epichlorohydrin/soy protein adhesive (IA-PEA/SP). The as prepared materials, IA-PEA and (IA-PEA/SP), characterized with 1H-NMR spectroscopy, viscosity, solid content, shear bonding strength, and water resistance. The physico-mechanical tests of IA-PEA/SP bonded- plywood (0.5/5 weight ratio) attained an enhanced dry and wet shear bonding strength of 5.94 ±0.36 MPa and 1.220.02± MPa compared with an alkali-denatured SP adhesive control. The water resistance tests, proved the sustainability of the prepared composite. Moduli of rupture and elasticity of Pb were 7.07 ± 0.12 MPa and of 0.21± 0.005 GPa. A two-fold internal bonding strength (IB) was obtained at IA-PAE/SP adhesive (40%) compared to the control. The water absorption and the thickness swelling improve by ~ 40% and 33%. TGA and Ʃ Ea calculations showed proper thermal properties. The proposed IA-PAE/SP adhesive paves the way for using green wood adhesives. | ||
| Keywords | ||
| Eco-friendly; Free-formaldehyde; Particleboards; Physico-mechanical properties; Shear bonding strength; Soy protein; Thermal analysis | ||
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