Optical Stability of PMMA via Untreated Silica under Environmental Cycling

Assumption under test

Nanoparticle inclusion inevitably increases haze over time in transparent polymers.

Edge of Practice experiment

PMMA containing 1–3 wt% untreated silica is subjected to repeated humidity and temperature cycling for 8–12 weeks while tracking haze and gloss.

Failure condition

Progressive haze increase exceeding neat PMMA baseline.

Pass criterion

Flat or reduced haze relative to initial value and neat PMMA.

Status: Final · Mid-Cycle