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Title: 
ABES data for "Study of the Curing Process of Tannin- and Lignin-Based Adhesive Using an Automated Bonding Evaluation System"

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Version history:
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1.0 // 2026-03-27 (Current) DOI: 10.5281/zenodo.19253004

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Authors:
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-Maks Brus, Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, 1000, Slovenia, ORCID: 0009-0009-7046-8438
-Jernej Dolenc, Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, 1000, Slovenia
-Aleš Serženta, Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, 1000, Slovenia
-Milan Šernek, Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, 1000, Slovenia, ORCID: 0000-0002-9365-6126

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Contact:
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maks.brus@bf.uni-lj.si

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Adhesive naming convention:
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Adhesive mixture			Designation	Formulation		Ratios
--------------------------------------------------------------------------------------------------
Tannin-hexamine				T-H		H2O : T : H		60 : 40 : 2,4
Tannin-hexamethylenediamine		T-HMDA		H2O : T : HMDA		60 : 40 : 3
Tannin-hexamine-hexamethylenediamine	T-H-HMDA	H2O : T : H : HMDA	60 : 40 : 2,4 : 3
Lignin-hexamine				L-H		H2O : L : H		60 : 40 : 2,4
Lignin-hexamethylenediamine		L-HMDA		H2O : L : HMDA		60 : 40 : 3
Lignin-hexamine-hexamethylenediamine	L-H-HMDA	H2O : L : H : HMDA	60 : 40 : 2,4 : 3
--------------------------------------------------------------------------------------------------

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Data collection:
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To determine the optimal pressing conditions for the T-HMDA, T‑H‑HMDA, L‑HMDA, and L‑H‑HMDA mixtures, four pressing temperatures were selected: 125 °C, 150 °C, 175 °C, and 200 °C, as well as ten different pressing times: 15 s, 30 s, 60 s, 120 s, 180 s, 240 s, 300 s, 420 s, and 600 s. For the reference mixtures T‑H and L‑H, only the temperature of 200 °C was selected, using the same times. For each temperature–time combination, at least five measurements were performed.
For shear strength measurements using the ABES method, two veneer strips with dimensions 117 mm × 20 mm × 0.85 mm (length × width × thickness) are used. The veneers are cut with a special pneumatic AES cutter (Adhesive Evaluation Systems Inc., Oregon, USA), with the length parallel to the axial fiber direction. An amount of 200 g/m² of adhesive is applied to the veneer and spread with a spatula over an area of 5 mm × 20 mm (100 mm²). The two strips are inserted into the jaws of the machine, which is set so that the overlap between the strips is 5 mm. The specific pressing pressure is 1.2 MPa.
After pressing, the joint is loaded by an axial displacement that induces tensile shear stresses. After joint failure, the maximum force (F) is recorded, and the exact length (l) and width (b) of the overlap are measured. From these values, the shear strength (fv) of the adhesive joint is calculated according to the equation: fv = F / (l × b).

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Data processing:
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None (Raw data), only time and shear strength reported.

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File naming convention:
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example: ABES_L-H-HMDA_150.csv - ABES measurements for L-H-HMDA at 150 °C

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Data structure:
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-Files are in comma delimited (,) .csv
-Decimal separator is dot (.)
-First row represents the variable name 
-Second row represents the variable unit.

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Licence:
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CC-BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode

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Related works:
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DOI will be added upon publication of the associated article.






