Experimental Investigation of Innovative Layered Design for Moisture-Resistant Multi-Material Additive Manufacturing

Moisture Absorption Analysis
Table shows the moisture absorption behavior of five different material configurations (A–E) subjected to two environmental conditions—elevated temperature (70°C) and room temperature (23°C)—over a 7-day exposure period. The results indicate significant differences in moisture uptake patterns across configurations and temperatures. Configuration A at 70°C exhibited the highest moisture absorption, reaching 10.00 units by Day 7, while Configuration B showed the lowest at 0.59 units, suggesting a relatively hydrophobic nature or protective structure. In general, all configurations absorbed more moisture at 70°C compared to 23°C, highlighting the temperature's accelerating effect on diffusion and hygroscopic activity. Notably, the absorption trends for each configuration appear linear or quasi-linear over the duration, particularly for configurations with higher uptake.