Acoustic and Vibration Fields During Photopolymerisation: Bubble Motion, Particle Organisation and Cure Perturbation

Acoustic or mechanical excitation applied during photopolymerisation can reorganise bubbles, particles and interfaces while simultaneously perturbing heat transfer and cure kinetics. The engineering problem is therefore to separate genuine field-driven organisation from artifacts caused by vibration, cavitation or thermal drift. ER-355 combines force and acoustic-field characterisation with high-speed imaging, thermal measurement and post-cure microstructural analysis. Frequency, amplitude and boundary-condition sweeps are interpreted against particle-response and bubble-dynamics timescales. Qualification is framed around reproducible structure formation and cure uniformity, with explicit rejection of operating regions in which cavitation, heating or fixture resonances dominate the observed response.

ER-355.