국내산재-남양재로 제조된 직교형적층패널의 물리적 특성

• Published in: 농업생명과학연구 Vol. 58; no. 4; pp. 101 - 107
• Main Authors: 차민성, 고준호, 김동헌, 고상훈, 박한민, Min Seong Cha, Jun Ho Goh, Dong Heon Kim, Sang Hun Goh, Han Min Park
• Format: Journal Article
• Language: Korean
• Published: 경상국립대학교 농업생명과학연구원 31.08.2024; 농업생명과학연구원
• Subjects: 자연과학일반; Cross-Laminated wood panels; 흡수율; Absorption ratio; 두께팽창률; Peeling ratio; 박리율; 직교형적층패널; Thickness swelling; Dimensional stability; Water resistant immersion peeling; 치수안정성; 침지박리
• ISSN: 1598-5504; 2383-8272
• DOI: 10.14397/jals.2024.58.4.101

이 연구에서는 국내산 중·소경목 이용확대 및 목재마루판으로써 효율적인 활용을 위하여 남양재인 티크, 멀바우와 국내산재인 낙엽송과 백합나무를 혼합적층한 직교형적층패널을 제작하였고, 상온침지 및 내수 침지박리시험을 실시하여 치수안정성과 내수성을 조사하였다. 상온에서 24시간 침지 후 측정한 흡수율은 3.4% - 6.8%의 범위에 있었고, TLa (Teak-Larch)가 가장 높은 값을 나타내었다. 흡수두께팽창률은 TTu (Teak-Tulip tree)가 4.7%로 가장 낮았고, TLa가 7.0%로 가장 높은 값을 나타내었다. TLa를 제외한 모든 시험편이 KS에 고시된 목재제품의 규격과 품질기준 6%이하에 부합하였다. 내수침지박리시험 후의 박리율의 경우, TLa가 1.1%로 가장 낮았고, MLa (Merbau-Larch)가 50%로 가장 높은 값을 나타내었다. MTu (Merbau-Tulip tree)와 TLa는 KS에 고시된 품질기준에 부합하였으나, MLa와 TTu는 고시된 품질기준에 부합하지 못하는 것이 확인되었다. 내수침지박리시험 후의 흡수율과 흡수두께팽창률은 각각 13.3% (TLa) - 29.1% (MTu), 7.5% (TTu) - 9.8% (MTu)의 범위로 흡수율은 4.3배, 흡수두께팽창률은 1.4배 상온침지 후의 그것보다 증가하는 것이 확인되었다. In this study, for efficient use and expansion of domestic small - and medium- diameter woods, cross-laminated wood panels composed of tropical hardwoods such as merbau and teak and domestic temperate woods such as larch and tulip tree were manufactured, immersion tests in room temperature and water-resistant immersion peeling tests of cross-laminated wood panels were conducted to investigate dimensional stability and water resistance. The water absorption rates of cross-laminated wood panels measured after 24 hours of immersion at room temperature ranged from 3.4% - 6.8%, with TLa (Teak-Larch) having the highest value. The thickness swelling of cross-laminated wood panels was lowest for TTu (Teak-Tulip tree) at 4.7% and highest for TLa at 7.0%. All specimens, except for TLa met the KS standards for wood products, which require a thickness swelling of 6% or less. In terms of peeling ratios in glue lines after water-resistance immersion peeling tests of cross-laminated wood panels, TLa showed the lowest value at 1.1%, while MLa (Merbau-Larch) exhibited the highest value at 50%. MTu (Merbau-Tulip tree) and TLa fitted in the quality standards specified by KS, while MLa and TTu didn’t fit in the specified quality standards. After the water-resistant immersion peeling test, the water absorption and thickness swelling ranged from 13.3% (TLa) - 29.1% (MTu) and from 7.5% (TTu) - 9.8% (MTu), respectively. It was confirmed that the water absorption ratio increased by 4.3 times and the thickness swelling increased by 1.4 times compared to those after room temperature immersion.