Ceramic green and fired body with a uniform microstructure prepared using living characteristics of photo-curable cycloaliphatic epoxide: Applicability of cycloaliphatic epoxide in photo-polymerization-based 3D printing

Ceramic bodies without warping using epoxide–acrylate hybrid ceramic slurry for photopolymerization‐based 3D printing

“…Thus, to check photo and thermal curing behavior of epoxide–acrylate hybrid slurries, FT‐IR spectra of epoxide–acrylate mixtures that do not contain inorganic particles were measured after completion of photo curing and photo/thermal curing. As shown in Figure 1A, the peaks of C = C at 1635 cm −1 , which can be attributed to the acrylate group, were observed before polymerization in all the mixtures 28,31 . It could be observed that the intensity of the cyclo‐aliphatic epoxy peak (785 cm −1 ) increased with incremental increase of the EMA content in the mixtures 28,32 .…”

“…Several dual curable acrylic‐epoxy‐based ceramic slurries to prepare various ceramic green bodies have been reported until now. The thermoset‐based bodies exhibited remarkable mechanical properties in comparison with those produced using the single curing system 28,29 …”

“…31 reported that shape distortion of DLP 3D printed acrylate polymer structures during light curing is due to different curing degrees of acrylate groups between the region exposed directly to light and other parts: difference of crosslinking density. Park et al 28 . monitored warping of 3D printed ceramic fired body prepared with acrylate‐based slurry.…”

“…They suggested that the cause of the warping phenomenon is due to the non‐uniformity in the layers and limitations in light penetration depth through the acrylate slurry. Even though warping of 3D printed ceramic fired body was dramatically improved in the same work through utilization of epoxide with only living characteristics, low curing speed of epoxide was not suitable for DLP 3D printing 23,28,30 …”

Synergistic Effect of BaCl2 on Corrosion Inhibition of Copper by Mentha Spicata Oil in 1M Nitric Acid: Gravimetric and Raman Spectroscopy Studies

“…[1][2][3][4][5][6][7][8][9] Moreover, epoxides are key materials for fine chemical synthesis due to their ring-opening activity. [10][11][12][13][14][15][16][17][18] Nowadays, the catalytic cycloaddition of CO 2 to different epoxides attracts considerable attentions of researcher all over the world as an efficient way for cyclic carbonates production as well as one of the best possible strategy for carbon dioxide neutralization by its fixation and recycling. [19][20][21][22][23][24][25] Nevertheless, the direct epoxidation of unsaturated compounds with chemical oxidants, e.g., organic hydroperoxides, leads to the formation of undesired by-products and is ineffective in many cases.…”