Composition–Property Balance in <scp>PETG</scp> / <scp> SiO <sub>2</sub> </scp> / <scp>PBT</scp> Composites for Tran
Glycol‐modified polyethylene terephthalate (PETG) composites were examined through two formulation steps to balance mechanical properties, optical performance, and water uptake. Fumed and precipitated silica were compared at 0.5–2.0 wt%, followed by poly(butylene terephthalate) (PBT) blending with the selected sili...