Study on Printing Process of X612N Aramid Paper Honeycomb Core
Liu Wenpin, Ma Jianzhong, Yang Jinjun, Shi Xiangning
AVIC Composite Corporation Ltd, Beijing 101300, China
Abstract：The differences in thickness, basis weight, water absorption, and air permeability between domestic X612N-2mil and imported T412-2mil aramid papers were compared. The surface morphology of the two was characterized by SEM. In addition, the preliminary test the domestic aramid paper effect on printing process which shows that the domestic X612N-2 mil aramid paper has the characteristics of small thickness, small basis weight, large water absorption, large air permeability and more surface holes than imported one. The front surface water absorption of domestic aramid paper is higher 679.7% than imported aramid paper, the back surface water absorption is higher 838.8%, and the air permeability is about 10 times higher than imported aramide paper. After domestic aramid paper is printed and pressed, the node bond strength and white core density (un-dipping) are higher than imported aramid paper, with 26.8% higher node strength and 10.8% higher white honeycomb core density. According to the characteristics of domestic aramid paper, the relationship of the node bond strength between the air permeability, printing speed and glue viscosity of domestic X612N-2 mil aramid paper was studied. According to the requirements of node bond strength (≥4N/cm) in the production process. Based on the analysis of single factor and node bond strength data, the paper air permeability/printing speed/glue viscosity model was established and verified. The results show that according to different air permeability papers, the main process parameters of printing speed and glue viscosity can be obtained. This range data could provide the theoretical guidance for the printing process, and the application of domestic aramid paper in the aramid paper honeycomb field is expanded.
Keywords：honeycomb; domestic aramid paper; printing; process parameters; property
Liu Wenpin，Ma Jianzhong，Yang Jinjun，et al. Study on printing process of X612N aramid paper honeycomb core[J]. Engineering Plastics Application，2020，48(6)：57-61.