WOOD RESEARCH Volume 71, Number 2, 2026
LEI YAN, QIANHUI HUO, JINGWEN SHA, LILI YU, SHUGUANG LI, and HUI LI

THE EFFECTS OF INTERFACE MODIFICATION ON THE PROPERTIES OF WASTE WOOD/POLYBUTYLENE SUCCINATE COMPOSITES

In this study, wood-plastic composites were prepared using waste wood powder (WWP) and polybutylene succinate (PBS). Three interfacial modifiers, γ-glycidoxy-propyltrimethoxysilane (KH560), isopropyl tri(dioctylpyrophosphate) titanate (CS201), and maleic anhydride-grafted PBS (MAPBS) were used to modify the interface of the composites and enhance the mechanical properties. The materials were characterized using infrared spectroscopy, three-point bending, and water absorption tests. The results indicated that all three interfacial modifiers were successfully grafted onto the wood powder surface, thereby influencing the mechanical properties. When the mechanical properties of the composites reached their optimal levels, the optimal loading levels of KH560, CS201, and MAPBS were 2%, 1%, and 2%, resp. At this point, compared to the unmodified composite, the elastic modulus increased by 9.44%, 15.03%, and 12.92%, resp; the flexural strength increased by 5.35%, 11.51%, and 8.91%, resp; the water absorption decreased by 4.88%, 3.68%, and 6.21%, resp; and the thickness swelling decreased by 4.56%, 3.08%, and 7.54%, resp.

WOOD RESEARCH Volume 63, Number 2, 2018
Hervice Kouefouet, G. Bawe, C.M. Fouotsa Woutsop, P. K. Talla, J.A. Mukam Fotsing, and E. Foadieng

Probabilistic approach of the failure of Lovoa trichilioides and Triplochiton scleroxylon

The aim of this work is the probabilistic modeling of the failure of Lovoa trichilioides and Triplochiton scleroxylonspecies. A general presentation of the wood while focusing on the Weibull distributions was carry out. Parameters of the Weibull distribution for each of the materials were determined. We remark that when the Weibull shape parameter is small, the failure stresses dispersion is greater and the Weibull scale parameter increase or decrease depending on the stress. It is also shown that Lovoa trichilioides exhibits a high dispersion of breaking stress in contrast to Triplochiton scleroxylon. A comparison of the experimental data with the statistical laws allowed us to show that the three-parameter Weibull distribution better models the failure than the normal and the two-parameter Weibull distributions. The studies of variance prove that the failure stresses of Triplochiton scleroxylon vary less in comparison with that of Lovoa trichilioides.