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- W2408200042 abstract "돌침대에 사용되는 석재의 무게를 줄여 경량화를 추구하려면 석재의 두께를 줄이고 보강재료로 석재의 강도를 유지해야 한다. 본 연구에서는 돌침대용 석재/목재 보드 개발에 대한 연구를 진행하였다. 돌침대에 삽입될 돌의 무게를 줄이기 위해 석재와 목재를 접합하였다. 목재의 강도 향상과 표면개질을 위하여 열처리 조건에 따른 목재의 물성변화를 관찰하였다. 대기 조건에서 열처리한 목재의 경우 고온의 온도에 따라 목재의 강성이 높아졌다. 열처리 최적조건은 표면에너지와 인장, 굴곡 강도변화 경향을 바탕으로 <TEX>$100^{circ}C$</TEX> 조건임을 확인하였다. 석재와 목재간 높은 접착력을 확보하기 위해 최적의 접착제 조성을 연구하였다. 아민계 에폭시 접착제, 폴리우레탄(PU)계 접착제, 염화고무계(CR) 접착제 마지막으로 염화비닐초산계 접착제에 따른 석재와 목재간 랩 전단실험을 진행하였다. 랩 전단 실험 후 파단면을 관찰해볼 때 에폭시 접착제를 이용할 때 목재 기지의 인열 파괴가 발생되었다. 접착면에서의 전단력이 목재 자체의 파괴 강도보다 높다는 결과를 바탕으로 최적의 접착제 조건이 에폭시계 접착제임을 확인할 수 있었다. Stone board for the rock bed was needed to reduce weight using thin thickness and reinforced materials. In this work, stone/wood board for rock bed was studied. Stone and wood were attached to reduce total weight of stone for rock bed. For reinforcing wood heat treatment method was used to change surface and mechanical properties. Mechanical strength of heat treated wood increased more than neat condition. The optimum heat treatment condition was set on <TEX>$100^{circ}C$</TEX> under tensile, flexural loads whereas surface energy was also obtained by contact angle measurement. Optimum adhesive condition was to get the maximum adhesion between stone and wood. Lap shear test was performed for stone/wood board with different adhesives such as amine type epoxy, polyurethane, chloro-rubber and vinyl chloride acetate type. Fracture surface of lap shear test was shown at wood fracture part on stone using amine type epoxy adhesive. It was found that for high adhesion between stone and wood the optimum adhesive was epoxy type for the rock bed." @default.
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- W2408200042 date "2015-06-30" @default.
- W2408200042 modified "2023-09-26" @default.
- W2408200042 title "Interfacial and Mechanical properties of Different Heat Treated Wood and Evaluation of Bonding Property between Stone and Wood for Rock Bed" @default.
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- W2408200042 doi "https://doi.org/10.17702/jai.2015.16.2.69" @default.
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