Abstract:The study on the influencing factors of its mechanical properties is important for the improvement of
its mechanical properties. Three types of nomex honeycomb with different resin distribution were made through two
different gumming processes. Then mechanical properties testing on the honeycomb and micro observation on phenolic
resin distribution at honeycomb hole wall were performed to study the effect of resin distribution and wall thickness of
honeycomb holes on their mechanical properties. The results show that sufficient flow of the resin may increase the
compressive strength of the honeycomb by 8% to 40%, decrease the shear strength by 9% to 21%. The resin forms
gum pillars at the end of the honeycomb nodes, which is the main cause for the increase of the compressive strength.
The forming of gum pillars results in the decrease of the average thickness of honeycomb hole walls and thus leads to
the decline of the shear strength.
