Investigation of nonreactive fluoroalkyl-containing surfactants for reducing release energy of ultraviolet-cured acrylate resins
(Color online) (a) Photograph of the exterior of the mechanical measurement system and (b) an illustration of the measurement steps for detecting forces generated on detaching a cured resin from a silica lens. In (b), step 1 comprises placing a droplet of curable resin, replacing air with PFP gas, and moving a FAS13-modified modified silica lens downward; step 2 comprises contacting a resin droplet with the silica lens and exposing the resin to UV light through the silica lens; and step 3 comprises moving the silica lens upward and monitoring the forces detected on detaching the cured resin from the silica lens.
(Color online) Five-stroke–force curves of a surfactant-free base resin (Ref) and a resin with C8F13 as an additive surfactant, measured in air and PFP.
(Color online) Five-stroke–force curves of resins containing C8 and C10F17 additive surfactants, measured in air and PFP.
Average release energies per area measured for a base resin (Ref) and resins containing additive surfactants under air and PFP atmospheres.
(Color online) Photographs of cured resins containing C8F13, C10F17, and C12F21 on silicon substrates.
Chemical structures and abbreviations of used additive surfactants and average release energies per area of cured resins containing 2.0 wt. % surfactant.
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