Gedara, Ajith K. A. , Chianella, Iva , Bhattacharyya, Debabrata , ENDRINO ARMENTEROS, JOSÉ LUIS, Zhang, Qi
Si
BioResour.
Article
Científica
1.747
0.386
01/11/2021
000748249200003
2-s2.0-85137265646
A bio-based wood adhesive formulation free of formaldehyde and made from alkali-treated wheat gluten (WG) and sodium alginate (SA) was developed. Its formulation was optimised, and it was characterised by Fourier Transform Infrared (FT-IR) spectroscopy. The bio-adhesive was utilized to make particle-boards both with virgin wood particles and recycled wood particles. A dry bio-adhesive content of 35% (w/w) was used to make samples with both type of particles. Single-layer samples of 10 mm thickness were obtained using wood particles of 1 mm (both virgin and recycled). These samples then were subjected to 3-point bending tests. Whereas the bending strength of samples made with recycled wood particles was 18.09 N/m(2) and therefore satisfied Type 18 of the Japanese industrial standards (JIS A 5908:2015), the bending strength of the samples made with virgin wood particles was 8.08 N/m(2) and satisfied 'Type 8 Base particle-board Decorative particle-board' of the Japanese standards. The density of particle-board samples made from recycled wood particles was 916 kg/m(3), while that of samples made from virgin wood particles was 732 kg/m(3). The alkali-treated WG and SA bio-adhesive has the potential to be used to re-manufacture particle-boards, which can then be recycled and not disposed in landfills.
Sodium alginate; Wheat gluten; Bentonite; Particleboard