Study on the Printability through Digital Light Processing Technique of Ionic Liquids for CO2 Capture

Abstract

Here we present new 3D printable materials based on the introduction of different commercially available ionic liquids (ILs) in the starting formulations. We evaluate the influence of these additives on the printability of such formulations through light-induced 3D printing (digital light processing—DLP), investigating as well the effect of ionic liquids with polymerizable groups. The physical chemical properties of such materials are compared, focusing on the permeability towards CO2 of the different ILs present in the formulations. At last, we show the possibility of 3D printing high complexity structures, which could be the base of new high complexity filters for a more efficient CO2 capture.

3D Printing of PDMS-Like Polymer Nanocomposites with Enhanced Thermal Conductivity: Boron Nitride Based Photocuring System

“…The rotational viscosity was evaluated imposing a shear ramp to the samples and observing their behavior ( Figure 3 a). Pure TRAD presents a Newtonian behavior with an already relatively high viscosity (~1 Pa*s) when compared with other common DLP printable formulations [ 43 , 44 ]. Nevertheless, a viscous monomer can help the shelf-life of the formulations; in our case the filled formulations resulted stable for at least 7 days.…”

“…A typical liquid resin for light-based 3D printing is made of three main ingredients: (i) the oligomer/monomer, which is responsible of the final physical and mechanical characteristics of the printed structure, (ii) the photoinitiator, which induces the polymerization reaction and (iii) a dye or colorant which assures a good resolution [ 42 , 43 ]. By properly selecting the different formulation components and fillers, it is possible to tailor specific functional properties to the final 3D printed objects [ 44 , 45 , 46 , 47 ]. Few examples of SL and DLP resins with enhanced thermal conductivity have been very recently proposed [ 48 , 49 , 50 ].…”

Recent Advances in 3D Printing of Structured Materials for Adsorption and Catalysis Applications

“…As such, this section is focused on categorizing the four established pathways of scaffold formulation and analyzing the relevant literary reports for adsorptive and catalytic materials. It is also worth noting that other techniques, such as stereolithography, where the active material is suspended in a photopolymer and melted by an ultraviolet laser in a layer-wise fashion to produce the final scaffold, are beginning to be applied adsorbent and catalyst manufacturing, − however, they are not as well-developed and, therefore, are not discussed in this review.…”

A printability study of multichannel nerve guidance conduits using projection-based three-dimensional printing

“…34 These printing parameters are mutually influential, and configuration parameters are vital for achieving optimal printing performances. 35 In this study, key parameters included light intensity, exposure time, and layer thickness, which were especially significant for printing NGCs with multichannel structures. Light intensity is tuned by controlling voltage to the light source and directly affects photocuring efficiency.…”