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인도네시아産 未利用 樹種의 木材性質(Ⅲ) - Kebambang, Bawang-bawang 및 Garu buaya 木材의 基礎性質 -
정성호(Song Ho Chong),정두진(Doo Jin Chung),박병수(Byoung Su Park),이도식(Do Sick Lee),조성택(Sung Taek Cho),이동흡(Rong Heup Lee),홍인표(In Pyo Hong),전수경(Su Kyoung Chun) 한국가구학회 2000 한국가구학회지 Vol.11 No.2
This study was carried out to investigate the wood properties fur development the proper uses of lesser-known tree species. The tested species are Kebambang(Pentace sp.), Bawang-bawang(Dysoxylum alliaceum Bl.), Garu buaya(Gonysrylus brunescens A. Shaw) grown in Indonesia.<br/> Fundamental wood properties such as anatomical, physical, mechanical and chemical properties and characteristics related to wood processing were examined. The results are summarized as follows ;<br/> The woods of these species are diffuse porous, coarse textured, and interlocked grained. The heartwood of Kebambang is distinguished clearly to the sapwood, but the heartwood of other species are not distinguished clearly to the softwood.<br/> The woods of Kebambang and Bawang-bawang have the moderate weight density and the low strength properties, but Garu buaya has the high weight density and the high strength properties. The woods of these species has high shrinkage.<br/> The sawing characteristics of Kebambang are excellent, but the other species are moderate. The machining characteristics by planer and drying characteristics of these species are moderate. These woods has poor characteristics in bending processing and decay durability.<br/> The wood of Bawang-bawang has high content of the extractives and lignin.<br/> Key words; Lesser-Known Species Grown in Indonesia, Kebambang, Bawang-bawang, Garu bUJYJ, Wood properties,<br/>
정성호 ( Song Ho Chong ),정두진 ( Doo Jin Jung ),박병수 ( Byung Su Park ),이도식 ( Do Sick Lee ),조성택 ( Sung Taek Cho ),서준원 ( Jun Won Seo ),권영한 ( Yeong Han Kwon ) 한국산림과학회 2004 한국산림과학회지 Vol.93 No.3
This study was carried out to investigate the wood properties for efficient utilization of warm temperate tree species of Quercus salicina grown in Korea. Fundamental wood properties in the anatomical, physical, mechanical and chemical characteristics were examined. Quercus salicina is radial-porous, straight grained and fine textured wood. The heartwood is not clearly distinguished from the sapwood. In physical properties, it has a high oven-thy specific gravity of 0.80±0.03, and high shrinkage from green to air-dried condition of 4.42±0.60% in radial and 10.31±0.50% in tangential direction. Mechanical properties determined are strong with the MOR of 1,170±l44kgf/㎠, and tensile strength parallel to grain of 1,851±236kgf/㎠ and shear strength of 182±10kgf/㎠. Also, this wood has high extractive contents : 10.64% for cold and 12.57% for hot water.
박상범 ( Sang Bum Park ),정성호 ( Song Ho Chong ),변희섭 ( Hee Seop Byeon ),류현수 ( Hyun Soo Ryu ) 한국목재공학회 2010 목재공학 Vol.38 No.3
중밀도섬유판(MDF)에 글씨나 그림을 새김질한 목판을 제조하고, 이를 탄화하여 서각작품을 제작하는 방법을 개발하였다. 섬유판의 탄화에 따른 외형적 및 조직학적 변화를 검토하고 제작된 탄화보드 서각작품에 대한 미학적 특징을 고찰하였다. 서각한 MDF를 850°C에서 탄화한 결과, 할열이나 뒤틀림은 관찰되지 않았으며, 치수는 가로 21.8%, 세로 18.8%, 두께 43.5% 줄어들었고, 중량은 69.2%, 밀도는 14.8% 감소하였다. 탄화보드의 전자 현미경에 의한 관찰 결과, 당초 섬유의 표면과 벽공을 둘러싸고 있던 접착제가 탄화되면서 목질섬유의 표면이 매끄럽게 변하고 벽공이 개열되며 섬유의 크기가 균일화되고 조직이 치밀화되는 현상을 나타내었다. 수작업에 의한 서각기법과 무할열 탄화기법의 융합에 의해 새로운 탄화보드 서각작품의 제작이 가능하였다. 탄화보드 서각작품은 목탄의 기능성과 서각의 아름다움을 부여하는 새로운 친환경 예술영역의 한 분야로서 이용될 수 있을 것이다. This study was focused to make a wooden plate that is engraved with writings or pictures on the medium density fiberboard (MDF), and then to produce a calligraphy-carving artwork by carbonization of the carved MDF. The external appearances and anatomical changes were investigated on the carbonized MDF and aesthetic characteristics was also discussed. No split and no twist were found after the carbonization (at 850°C) of the calligraphy-encarved MDF, shrinkages of the MDF were observed with portions of 21.8% in length, 18.8% in width and 43.5% in thickness, and 69.2% of weight loss with density decrease of 14.8% were observed as well. From the observation of the carbonized board by a scanning electron microscope, specific phenomena were found: the adhesives, surrounding the fiber`s surface and pits, were carbonized, the woody fibers were changed smoothly, the pits were opened, the fiber`s size was uniformized, and the organization was compacted. By the combination of handmade calligraphy-woodcarving and crack-free carbonizing methods, it was able to find a new method for manufacture carbonized calligraphy-woodcarving artwork. It is concluded that the calligraphy-woodcarving artwork using carbonized board can be a new access for the eco-friendly art that has the advantage of the functionality of charcoal and the aesthetic of calligraphy-woodcarving simultaneously.
이원희(Won-Hee Lee),박병수(Byung-Soo Park),변희섭(Hee-Seop Byeon),강호양(Ho-Yang Kang),정성호(Sung-Ho Chong) 한국가구학회 2008 한국가구학회지 Vol.19 No.1
A series of the studies on the applied physical properties of main domestic species have been conducted last three years. Equilibrium moisture content(EMC) of Pinus koraiensis, Larix kaemferi, Pinus koraiensis were investigated. The experiments for sorption property were conducted with 20- and 80-mesh wood powder and resulted in their EMC's at various sorption conditions. Amount of moisture sorption and sorption speed of Larix kaemferi were shown the most large values and very fast among three Korean main coniferous wood.