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Updated: Oct 3, 2025
08:40
Standard Test Method ASTM D 7998-19 for the Cohesive Strength Development of Wood Adhesives
Published on: May 17, 2020
3.1K
High-Performance Adhesive Joint Made from Densified Wood
Benjama Meethaworn1, Suthon Srivaro1,2,3,4, Sureurg Khongtong1,2,3,4
1Materials Science and Engineering Program, School of Engineering and Technology, Walailak University, Thasala District, Nakhon Si Thammarat 80160, Thailand.
Polymers
|February 15, 2022
Summary
This study enhanced wooden adhesive joints using densified rubberwood, achieving a 40% increase in shear strength. Optimal surface sanding and wood density significantly boosted joint performance and wood failure rates.
Area of Science:
- Materials Science
- Wood Engineering
- Adhesive Technology
Background:
- Adhesive joint strength is critical for engineering wood products.
- Enhancing joint performance requires advanced material treatments.
- Densified wood offers potential for improved mechanical properties.
Purpose of the Study:
- To investigate the performance of adhesive joints made from densified rubberwood.
- To determine the effect of mechanical compression, polymer impregnation, and surface sanding on joint strength.
- To optimize the density of treated rubberwood for maximum adhesive joint performance.
Main Methods:
- Rubberwood was densified using mechanical compression and polymer impregnation.
- Surface sanding with varying grit sandpaper was applied to treated wood.
- Shear strength and wood failure rates of adhesive joints were measured.
Main Results:
- Densified rubberwood joints exhibited a 40% increase in maximum shear strength compared to original wood.
- Higher wood density (1.05–1.30 g/cm³) correlated with increased shear strength.
- Surface sanding with larger grit sandpaper increased wettability and glueline thickness, impacting joint strength.
Conclusions:
- Densification and optimal surface treatment significantly enhance rubberwood adhesive joint strength.
- Increased wood density and appropriate sanding are key factors for superior joint performance.
- This research provides a pathway for developing high-performance engineered wood products.
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