Structural, mechanical, and thermal properties of 3D printed L‐CNC/acrylonitrile butadiene styrene nanocomposites

Abstract

3D printing has been extensively applied in human‐related activities, and therefore the 3D printed nanocomposites became more popular and important in end‐use products. In the present study, we use lignin‐coated cellulose nanocrystal (L‐CNC) to reinforce 3D printed acrylonitrile butadiene styrene (ABS) and explore the effect of L‐CNC on the structural, mechanical, and thermal properties of 3D printed L‐CNC/ABS nanocomposites. The results indicate that the addition of L‐CNC foams the ABS and decreases the density of 3D printed L‐CNC/ABS nanocomposites. However, the tensile modulus and storage modulus increase by adding 4% L‐CNC. The thermal stability of 3D printed L‐CNC/ABS nanocomposites is also significantly improved as indicated by an increase in the maximum degradation temperature. The morphology of the nanocomposites reveals good dispersion and interfacial adhesion between L‐CNC and ABS. The finding indicates that the 3D printed nanocomposites become lighter and stiffer with addition of L‐CNC, which will have great potential to be applied in end‐use products. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45082.

Comparison between polyethylene glycol and tributyl citrate to modify the properties of wood fiber/polylactic acid biocomposites

“…With the development of 3D printing technology, natural fiber-reinforced polymers have been 3D printed to produce components for tissue engineering, electronics and construction [48,49]. However, very brittle parts were obtained with cellulose [50]. Therefore, future work should investigate the suitability of these compounds for 3D printing using the optimum additive content obtained in the present study (5 wt% TBC) and evaluate the overall properties of the components with respect to those of the base matrix (PLA) and those produced using conventional methods such as extrusion, injection, and compression molding.…”

Structural changes during 3D printing of bioderived and synthetic thermoplastic materials

“…An understanding of the structural aspects and thermal behavior of both the filament and 3D prints is of utmost importance in designing functional products with improved properties. There are many studies to date concerning the mechanical behavior of 3D printed structures originating from several types of filaments (standalone polymers, polymer blends, or composites), but only a few deal with the structural and thermal behavior of both filament and corresponding 3D print . Furthermore, among these, most of the studies deal with custom‐made filaments, which may have limited practical applicability to mass production of 3D printed objects.…”

Three-Dimensional Printing of Wood-Derived Biopolymers: A Review Focused on Biomedical Applications

“…L-CNC is obtained by the SO 2 –ethanol–water (SEW) fraction method with sticky lignin precipitated with CNC. The presence of the hydrophobic lignin makes CNC less polar, which decreases the surface tension between the L-CNC and a nonpolar matrix, such as ABS 112 or methacrylate (MA) resin. 113 In the twin-screw blending of L-CNC/ABS, a high loading up to 10 wt % L-CNC was achieved in the composite, which was used to produce the feedstock filament for FDM printing.…”