STATIC COMPRESSIVE PROPERTIES OF MULTI-LAYER CORRUGATED SANDWICH PAPERBOARDS

摘要

Multi-layer corrugated sandwich paperboard is a favorable kind of cushioning and packaging material, but there is little reference to the selection of multi-layer corrugated sandwich paperboards as cushioning object. This paper analyses the compressive behavior of multi-layer corrugated sandwich paperboards. During the compression processing, the corrugated sandwiches were gradually squished from top to bottom. Experimental results show the compressive resistances are similar for the same type of corrugated sandwiches with different layers; the energy absorption of the multi-layer corrugated sandwich paperboards is significantly greater than the monolayer one; and the multi-layer corrugated sandwich paperboards have compression resistance capability for repetitious shock. Based on the compressive tests of corrugated sandwich paperboards of B, C, E, BE, CE and BC types, we researched the relationship between cushioning properties of multi-layer corrugated sandwiches and their relative density. The energy absorption of multi-layer corrugated sandwich paperboards increases with the relative density. These research results can be used to optimize and design corrugated sandwich pads.