CAJ | 학술논문

以3种不同形态的竹碎料为原料,不添加合成树脂,在不同热压温度条件下制备无胶竹碎料板,研究其性能特性。结果表明,随着热压温度的升高,3种无胶竹碎料板的内结合强度逐步增强,其中片状竹碎料压制的板材最高；同时,丝状和颗粒状竹碎料压制的板材吸水厚度膨胀率性能明显改善,190℃之前片状竹碎料压制的板材吸水厚度膨胀率性能最好,190℃时丝状和颗粒状竹碎料压制的板材出现严重炭化现象使吸水厚度膨胀率优于片状竹碎料压制的板材；另外,丝状竹碎料压制的板材静曲强度和弹性模量最大。竹碎料板的弯曲破坏模式主要包括下表面拉断、芯层剪切破坏,而拉伸破坏模式主要指中间芯层脆性断裂。
이3충불동형태적죽쇄료위원료,불첨가합성수지,재불동열압온도조건하제비무효죽쇄료판,연구기성능특성。결과표명,수착열압온도적승고,3충무효죽쇄료판적내결합강도축보증강,기중편상죽쇄료압제적판재최고；동시,사상화과립상죽쇄료압제적판재흡수후도팽창솔성능명현개선,190℃지전편상죽쇄료압제적판재흡수후도팽창솔성능최호,190℃시사상화과립상죽쇄료압제적판재출현엄중탄화현상사흡수후도팽창솔우우편상죽쇄료압제적판재；령외,사상죽쇄료압제적판재정곡강도화탄성모량최대。죽쇄료판적만곡파배모식주요포괄하표면랍단、심층전절파배,이랍신파배모식주요지중간심층취성단렬。
s:The obj ective of this paper is to evaluate some properties of binderless bamboo particleboard which was glued by extracted natural activator at different hot pressing temperature.The results reveal that all types of binderless particleboard are enforced at internal bond strength (IB)with increasing pressing temperature, and maximum one is made by slice chips.In addition,thickness swelling rate of water absorption (TS)has im-proved largely for the board made by slender and pelleted chips accordingly.But the best one is made by slice chips below 190 ℃ while it becomes to be the worst one when pressing temperature is above 190 ℃.Among all types of the species,the maximum modulus of rupture (MOR)and modulus of elasticity (MOE)come from binderless particleboard made by slice chips.The failure mode of bending test includes tensile failure of bottom surface and core shear failure while core tensile non-plastic crack is the main failure mode of transverse tensile test.