Abstract
As perceived, fiber-reinforced photocuring resins possess various distinctive advantages over traditional reinforced resin systems. This includes a rapid curing rate, energy efficiency, no volatile organic compounds, high strength, good thermal stability, and chemical resistance. Printing 3D composite objects using vat polymerization techniques has been a center of interest where photocuring resins are applied. In our present study, we have synthesized resorcinol-based diglycidyl ether, that is, a resorcinol-based epoxy resin, and further acrylated to the resorcinol epoxy acrylate oligomer. This oligomer was further formulated to photocuring resins using a suitable quantity of reactive diluents and photoinitiators. Now, three types of synthetic fibers, that is, glass fibers, nylon fibers, and polyester fibers, were incorporated in this formulated resin at different loading percentages. The oligomer synthesized was analyzed for structural conformation using Fourier transform infrared spectroscopy and 13C nuclear magnetic resonance. Further, we comparatively examined the rheological behavior of prepared formulations, and compatible formulations were applied to stereolithography 3D printers. Finally, physical, mechanical, thermal, transmittance, and morphological characteristics were comparatively analyzed for prepared UV-cured composites. The outcomes obtained during characterizations of UV-cured composites will be inevitably reflected in 3D-printed objects.
Highlights
Resorcinol chemistry has seen an enormous leap in the field of polymer and coating technology
The amount of unsaturation, that is, acrylate functional groups, is much higher in the resorcinol epoxy acrylate (REA) oligomer when compared to conventional bisphenol A epoxy acrylate, which will successively lead to optimum cross-linking at the curing stage.[3]
Due to the numerous advantages attributed to the REA oligomer, it was considered suitable to formulate as a photocuring resin for stereolithography (SLA) 3D printing
Summary
Resorcinol chemistry has seen an enormous leap in the field of polymer and coating technology. Resins such as epoxy, aromatic polyesters, polyamides, and formaldehyde based on resorcinol and its derivatives are commercially manufactured polymers. Aromatic polyesters, polyamides, and formaldehyde based on resorcinol and its derivatives are commercially manufactured polymers These resorcinol-based polymers have established a diverse profile for their applications as adhesives, coatings, plastic moldings, rubber composites, etc.[1,2] The reported studies reveal that the resorcinol-based epoxy acrylate resin exhibits the quality of a high-performance material. It has excellent wetting and dispersing properties, which aids in uniform blending for pigments, fillers, and additives.[1,2] Due to the numerous advantages attributed to the REA oligomer, it was considered suitable to formulate as a photocuring resin for stereolithography (SLA) 3D printing
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