Cationic Polymerized Epoxy and Radiation Cured Acrylate Blend Nanocomposites Based on WS2 Nanoparticles—Part A: Curing Processes and Kinetics

Cationic photo-initiated and polymerized epoxies are characterized by good adhesion, high modulus, zero volatiles, low shrinkage living polymerization characteristics. Radiation—cured acrylate resins rapid initial curing with increased strength. The combination of radiation-cured acrylates may present advantageous attributes. Thus, the system investigated is a hybrid epoxy/methyl three different initiators for cationic epoxies, radical reaction thermal initiator. When incorporating additives like opaque WS2 nanoparticles (NPs), absorption photo radiation takes place, which lead to activity. Curing kinetics measurements revealed that absorbing/masking effect was insignificant, surprisingly, level enhanced when NPs were incorporated. FTIR results demonstrated covalent bonds formed between inorganic fullerenes (IF-WS2) crosslinked matrix. Viscosity showed surprising reduction five ten times in low-shear viscosity upon incorporation compared neat resins. It concluded decrease NPs, addition conversion, has profound advantages structural adhesives 3D printing To best our knowledge, this investigation first report on radiation-induced containing leads an degree reduced shear viscosity.