TY - JOUR
T1 - The bond strength development of coconut wood in relation to its density variations
AU - Gurr, J.
AU - Barbu, M.C.
AU - Frühwald, A.
AU - Chaowana, P.
N1 - Cited By :1
Export Date: 14 December 2023
CODEN: JADNA
Correspondence Address: Chaowana, P.; School of Engineering and Technology, Thailand; email: [email protected]
Funding details: Universität Hamburg, UH
Funding text 1: This work was supported by the Institute of Wood Science, University of Hamburg, Germany, and the German Federal Thuenen Institute of Wood Research, Germany. The authors gratefully acknowledge the Institute of Wood Science, Universität Hamburg (UHH), and the German Federal Thünen Institute of Wood Research (TI) for the available research equipment and financial support. We would like to express our sincere thanks to Dr. Dieter Fink of Applikatio Freiburg, Dr. Ralph Lehnen (TI), Daniel Hasemann (UHH), and Barlas Oran (Karadeniz Technical University Trabzon, Turkey) for their valuable suggestions and support.
Funding text 2: The authors gratefully acknowledge the Institute of Wood Science, Universität Hamburg (UHH), and the German Federal Thünen Institute of Wood Research (TI) for the available research equipment and financial support. We would like to express our sincere thanks to Dr. Dieter Fink of Applikatio Freiburg, Dr. Ralph Lehnen (TI), Daniel Hasemann (UHH), and Barlas Oran (Karadeniz Technical University Trabzon, Turkey) for their valuable suggestions and support.
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PY - 2022/6/20
Y1 - 2022/6/20
N2 - This study examines the influence of density variations in coconut palm wood (Cocos nucifera L.) on bond strength development using three types of adhesives: urea formaldehyde (UF), melamine urea formaldehyde (MUF), and polyvinyl-acetate (PVAc). A special testing device called Automated Bonding Evaluation System (ABES) was used to investigate the bond strength development between coconut veneers as a function of adhesive type, wood density (moisture content of 10%), pressing time, and bond-temperature development. Coconut wood density was shown to greatly affect the bond line. The bond strength of medium-density material (600–700 kg/m3) was lower than that of high-density material (900–1,000 kg/m3). Interestingly, the medium-density coconut veneers achieved higher bond strength with shorter pressing times, while the high-density coconut veneers reached better results with longer pressing times. Moreover, the bond strength improved by increasing the hot-pressing time resulting in higher bond-line temperatures. A comparison was made between coconut wood and beech wood for similar bonding parameters.
AB - This study examines the influence of density variations in coconut palm wood (Cocos nucifera L.) on bond strength development using three types of adhesives: urea formaldehyde (UF), melamine urea formaldehyde (MUF), and polyvinyl-acetate (PVAc). A special testing device called Automated Bonding Evaluation System (ABES) was used to investigate the bond strength development between coconut veneers as a function of adhesive type, wood density (moisture content of 10%), pressing time, and bond-temperature development. Coconut wood density was shown to greatly affect the bond line. The bond strength of medium-density material (600–700 kg/m3) was lower than that of high-density material (900–1,000 kg/m3). Interestingly, the medium-density coconut veneers achieved higher bond strength with shorter pressing times, while the high-density coconut veneers reached better results with longer pressing times. Moreover, the bond strength improved by increasing the hot-pressing time resulting in higher bond-line temperatures. A comparison was made between coconut wood and beech wood for similar bonding parameters.
KW - adhesive bonding evaluation system (ABES)
KW - beech veneer
KW - bond strength
KW - Coconut palm wood
KW - coconut veneer
KW - Bond strength (materials)
KW - Formaldehyde
KW - Hardwoods
KW - Hot pressing
KW - Metabolism
KW - Polyvinyl acetates
KW - Urea
KW - Urea formaldehyde resins
KW - Veneers
KW - Adhesive bonding evaluation
KW - Adhesive bonding evaluation system
KW - Beech veneer
KW - Bond strength
KW - Coconut veneer
KW - Density variations
KW - Pressing time
KW - Strength development
KW - Wood density
KW - Adhesives
KW - Hot Pressing
KW - Polyureas
UR - https://www.mendeley.com/catalogue/de32753d-18c1-346c-9f5b-1b2571869ef1/
U2 - 10.1080/00218464.2022.2091437
DO - 10.1080/00218464.2022.2091437
M3 - Article
SN - 0021-8464
VL - 98
SP - 1520
EP - 1533
JO - Journal of Adhesion
JF - Journal of Adhesion
IS - 10
ER -