There is increasing interest in thermoplastic polymer matrix composites due to their potential for simplified recycling and integration into circular economy strategies. A straightforward method for their production is film stacking, where a laminate is pre-assembled as alternating layers of thermoplastic films and fiber reinforcements, then consolidated by compression molding in a hot-plate press. This method requires the matrix to be available in film form.

In this work, a glass fiber reinforced polyamide 6 laminate was produced via film stacking. The composite’s quality depends strongly on processing parameters that control polymer melt infiltration prior to matrix solidification.

Laminate composition was assessed by the calcination method. Mechanical and physical properties—tensile, flexural, and density—were measured and compared to predictions from micromechanics and classical laminate theory. Charpy impact strength was also evaluated using notched and unnotched edgewise specimens, as well as unnotched flatwise specimens.

A composite with approximately 45 wt% glass fiber content, in line with predictions, was obtained. The tensile modulus (~12 GPa) matched theoretical estimates, while the flexural modulus (~9 GPa) was slightly lower, suggesting incomplete fiber tow wet-out. This indicates potential for optimization of processing conditions.

Impact testing yielded Charpy values of 55 kJ/m² (notched) and 75 kJ/m² (unnotched) in edgewise configuration, demonstrating significant notch sensitivity. Flatwise results were inconclusive due to specimen flexibility.

The obtained results provide a property baseline for this composite system and support future improvements to compression molding parameters in film stacking.