TY - JOUR
T1 - A method of measuring wood failure percentage of wood specimens bonded with melamine-urea-formaldehyde resins using image analysis
AU - Kim, Minseok
AU - Park, Byung Dae
N1 - Publisher Copyright:
© 2021, Korean Society of Wood Science Technology. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Transparent and colorless melamine-urea-formaldehyde (MUF) resins make it difficult to identify the area of wood failure percentage (WFP) in the fracture surface of bonded wood specimens. Therefore, in this study, we develop a method of measuring WFP after the adhesion strength measurement of MUF resins under shear stress. The fractured wood surface of block shear strength (BSS) specimens bonded with cold-setting MUF resins at three melamine contents (20%, 30%, and 40%) was marked black, and then, WFP was accurately measured via image analysis. WFP values measured using this method consistently increased with BSS as the melamine content increased, showing the reliability of this new method. The results suggested that this new method is useful and reliable for measuring the WFP of the fracture surface of wood specimens bonded with colorless adhesives such as urea-formaldehyde, MUF, and melamine-formaldehyde resins.
AB - Transparent and colorless melamine-urea-formaldehyde (MUF) resins make it difficult to identify the area of wood failure percentage (WFP) in the fracture surface of bonded wood specimens. Therefore, in this study, we develop a method of measuring WFP after the adhesion strength measurement of MUF resins under shear stress. The fractured wood surface of block shear strength (BSS) specimens bonded with cold-setting MUF resins at three melamine contents (20%, 30%, and 40%) was marked black, and then, WFP was accurately measured via image analysis. WFP values measured using this method consistently increased with BSS as the melamine content increased, showing the reliability of this new method. The results suggested that this new method is useful and reliable for measuring the WFP of the fracture surface of wood specimens bonded with colorless adhesives such as urea-formaldehyde, MUF, and melamine-formaldehyde resins.
KW - Block shear strength
KW - Image analysis
KW - MUF resins
KW - Wood failure percentage
UR - http://www.scopus.com/inward/record.url?scp=85108618410&partnerID=8YFLogxK
U2 - 10.5658/WOOD.2021.49.3.274
DO - 10.5658/WOOD.2021.49.3.274
M3 - Article
AN - SCOPUS:85108618410
SN - 1017-0715
VL - 49
SP - 274
EP - 282
JO - Journal of the Korean Wood Science and Technology
JF - Journal of the Korean Wood Science and Technology
IS - 3
ER -