폴리우레탄 접착제를 이용한 혼합 구조용집성판의 접착성능평가
Evaluation of Bonding Performance of CLT Using Mixed Species with Polyurethane Adhesive
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초록
To evaluate the bonding performance of the mixed cross laminated timber (CLT) using the polyurethane adhesive, the face bonding test of layers between larch and yellow popular lamina was conducted. The mixed CLT was consisted of 5 ply which was the 3 major larch laminae and the 2 minor yellow popular laminae. The bonding test was measured according to the weight of adhesive and the clamping pressure. To verify the penetration of adhesive into cells, the microscopic properties of bonding layers was compared. The block shear strength and wood failure of mixed lamina was met the quality standard of EN (European standards). But The boiling water soaking delamination of the larch CLT was better than the mixed CLT which didn’t meet the EN standard. In larch lamina, the adhesive was mainly penetrated through the tracheid. On the other hand, in yellow poplar lamina adhesive was passed throughout to vessel and wood fibers. The glue line thicknesses of the MAa and MBa samples were about 102, 60.1 μm, for each.
Abstract
To evaluate the bonding performance of the mixed cross laminated timber (CLT) using the polyurethane adhesive, the face bonding test of layers between larch and yellow popular lamina was conducted. The mixed CLT was consisted of 5 ply which was the 3 major larch laminae and the 2 minor yellow popular laminae. The bonding test was measured according to the weight of adhesive and the clamping pressure. To verify the penetration of adhesive into cells, the microscopic properties of bonding layers was compared. The block shear strength and wood failure of mixed lamina was met the quality standard of EN (European standards). But The boiling water soaking delamination of the larch CLT was better than the mixed CLT which didn’t meet the EN standard. In larch lamina, the adhesive was mainly penetrated through the tracheid. On the other hand, in yellow poplar lamina adhesive was passed throughout to vessel and wood fibers. The glue line thicknesses of the MAa and MBa samples were about 102, 60.1 μm, for each.
참고문헌 (11)
- 권성민, "원통형 단판적층재 수종및 접착층의 현미경적 특징", 한국목재공학회 학술논문발표집, pp.332~333 (2013)
- 農林水産省, "直交集成板の日本農林規格", 農林水産省告示第 3079号, ~ (2013)
- APA- The Engineered Wood Association, "Standard for Performance-Rated Cross-Laminated Timber. ANSI", APA PRG 320, 2018
- "British Standard BS EN 16351:2015 Timber structures - Cross laminated timber - Requirements", ~
- Gavrilović-Grmus̆a, I, "Influence of the viscosity of UF resins on the radial and tangential penetration into poplar wood and on the shear strength of adhesive joints", Holzforschung, 66, pp.849~856 (2012)
- "ISO 16696-1:2019 Timber structures - Cross laminated timber - Part 1: Component performance, production requirements and certification scheme", ~
- Jourez, B, "Anatomical characteristics of tension wood and opposite wood in young inclined stem of Poplar (Populus euramericana CV. ‘Ghjoy’)", IAWA Journal, 22, pp.133~157 (2001)
- 김건호, "Bonding Performance of Adhesives with Lamina in Structural Glulam Manufactured by High Frequency Heating System", 목재공학, 43(5), pp.682~690 (2015), 한국목재공학회
- Kramer, A, "Viability of hybrid poplar in ANSI approved cross-laminated timber applications", Journal of Materials in Civil Engineering, 26(7), pp.06014009~ (2014)
- Luedtke, J, "1C-PUR-bonded hardwoods for engineered wood products: Influence of selected processing parameters", Eur. J. Wood Wood Prod, 73, pp.167~178 (2015)
- Mestek, P, "Cross laminated timber (CLT)-reinforcements with self-tapping screws" (2010), Np