采用粗、细2种竹束为原料分别制备重组竹,探讨竹束形状对其浸胶与二次干燥工艺和重组竹性能的影响。结果表明:竹束的形状对浸胶工艺有一定影响,浸胶时间超过10 min后细竹束的上胶量总大于粗竹束;竹束形状对浸胶后的二次干燥工艺有明显影...采用粗、细2种竹束为原料分别制备重组竹,探讨竹束形状对其浸胶与二次干燥工艺和重组竹性能的影响。结果表明:竹束的形状对浸胶工艺有一定影响,浸胶时间超过10 min后细竹束的上胶量总大于粗竹束;竹束形状对浸胶后的二次干燥工艺有明显影响,在相同干燥时间和温度下,细竹束的干燥速率总大于粗竹束;由不同形状竹束制备的重组竹性能有所不同,粗竹束制得的重组竹其含水率和24 h TS均大于细竹束,而静曲强度、弹性模量和内结合强度3项指标均小于细竹束所制备的重组竹。展开更多
The effects of lay-up layer numbers on laminated bamboo bundle board’s physical and mechanical properties and connection performance were analyzed.The results show that under the conditions of same layer numbers,alon...The effects of lay-up layer numbers on laminated bamboo bundle board’s physical and mechanical properties and connection performance were analyzed.The results show that under the conditions of same layer numbers,along with the increase of the lay-up directions,the bending strength,bending modulus,compression strength and horizontal shear strength of the laminated board showed a downward trend,while using non-single direction lay-up structure,the board’s waterproof property was lower than that of single lay-up board, but the board’s connection performance was raised. Therefore,in the real application,with the condition of guaranteeing the mechanical properties of the board to meet operating requirements,the lay-up directions should be increased to improve the board’s connection performance and to increase the board’s safety.展开更多
文摘采用粗、细2种竹束为原料分别制备重组竹,探讨竹束形状对其浸胶与二次干燥工艺和重组竹性能的影响。结果表明:竹束的形状对浸胶工艺有一定影响,浸胶时间超过10 min后细竹束的上胶量总大于粗竹束;竹束形状对浸胶后的二次干燥工艺有明显影响,在相同干燥时间和温度下,细竹束的干燥速率总大于粗竹束;由不同形状竹束制备的重组竹性能有所不同,粗竹束制得的重组竹其含水率和24 h TS均大于细竹束,而静曲强度、弹性模量和内结合强度3项指标均小于细竹束所制备的重组竹。
文摘The effects of lay-up layer numbers on laminated bamboo bundle board’s physical and mechanical properties and connection performance were analyzed.The results show that under the conditions of same layer numbers,along with the increase of the lay-up directions,the bending strength,bending modulus,compression strength and horizontal shear strength of the laminated board showed a downward trend,while using non-single direction lay-up structure,the board’s waterproof property was lower than that of single lay-up board, but the board’s connection performance was raised. Therefore,in the real application,with the condition of guaranteeing the mechanical properties of the board to meet operating requirements,the lay-up directions should be increased to improve the board’s connection performance and to increase the board’s safety.
