层合方式和压缩方向对层合瓦楞纸板压缩性能的影响

目的研究层合方式和压缩方向对层合瓦楞纸板压缩性能的影响。方法通过静态压缩对平齐式和交错式等2种层合瓦楞纸板的3个方向进行实验,得到相应的应力-应变曲线,运用能量效率法对其峰应力、平均抗压强度、总吸能和比能量吸收进行对比分析。结果 2种层合方式的瓦楞纸板在x,y,z方向的应力-应变曲线走势大致相似,峰应力、平均抗压强度、总吸能和比能量吸收均为x方向最大,y方向次之,z方向最小。在x,y,z各个方向上,平齐式层合瓦楞纸板的峰应力、平均抗压强度、总吸能和比能量吸收均高于交错式层合瓦楞纸板。结论不同层合方式和压缩方向对层合瓦楞纸板压缩性能的影响较大,设计重型缓冲包装时可以优先选择平齐式层合瓦楞纸板的x方向,可以更好地达到提高缓冲效果和节约材料的目的。

Influence of Laminating Style and Compression Direction on Compression Properties of Laminated Corrugated Paperboard

The work aims to study the influence of laminating style and compression direction on compression properties of laminated corrugated paperboard. Through static compression, three directions of two types (overlapping type and interlacing type) of laminated corrugated paperboards were tested and the corresponding stress-strain curves were obtained. The peak strength, mean crushing strength, total energy absorption and specific energy absorption were comparatively analyzed with energy efficiency method. The stress-strain curves of corrugated paperboards of the two laminating styles in the respective directions of x, y and z were generally similar. For the two types of laminated corrugated paperboard, the peak strength, mean crushing strength, total energy absorption and specific energy absorption were the largest in the x direction, followed by those in the y direction, and the smallest was in the z direction. The peak strength, mean crushing strength, total energy absorption and specific energy absorption of overlapping laminated corrugated paperboard were higher than those of interlacing laminated corrugated paperboard in the directions of x, y and z. Different laminating styles and compression directions have a greater influence on the compression properties of laminated corrugated paperboard. In the design of heavy-duty cushioning packaging, the x direction of flush laminated corrugated paperboard can be preferentially selected, which can better achieve the purpose of improving the cushioning effect and saving materials.