Flexural vibration properties of particle board using acrylic emulsion adhesives with differential glass transition temperature

Vibration characteristics of wood-based materials are essential parameters in considering the indoor environment of a building. This study investigates the effect of the physical properties of water-based adhesives on vibration characteristics of wood-based materials. Adhesive films and particle boards (PB) were prepared from acrylic emulsion adhesives (AE) with differential glass transition (T-g), and loss tangent of dynamic viscoelasticity (tan delta(D)) and flexural vibration property (tan delta(F)) were compared. The tan delta(D) master curve and tan delta(F) showed a similar tendency regarding frequency dependence. The apparent activation energy (Delta H) calculated from the shift factor of the master curve tends to be different depending on the T-g of AE and was especially high for AE with T-g = 13 degrees C along with blended AE. The dynamic Young's modulus (E-F) calculated from the flexural vibration tests showed higher values for AE at T-g = 13 degrees C, 41 degrees C, and 90 degrees C than that of urea-formaldehyde adhesive (UF).

Automated summary

The study investigates the influence of physical properties of water-based adhesives on the vibration characteristics of wood-based materials, indicating that acrylic emulsion adhesives exhibit different tan delta (D) and tan delta (F) values depending on their glass transition temperature (T-g). The dynamic Young's modulus (E-F) of acrylic emulsion adhesives is higher than that of urea-formaldehyde adhesive (UF) at specific T-g values.