Optimizing the printability and dispersibility of functionalized zirconium oxide/acrylate composites with various nano-to micro-particle ratios

Ju, Yangyul; Ha, Jinsu; Song, Yeeun; Yun, Ji Sun; Lee, Doojin

doi:10.1016/j.ceramint.2020.07.168

Cited by 18 publications

(5 citation statements)

References 35 publications

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“…Many works define printability as the capability of the material to self-sustain after the extrusion process and maintain the fabricated shape. [14,22,23] Others relate the extrusion force produced by an FDM extruder to the rheological properties of a molten polymer. [24,25] The models already available in literature do not consider differences in rheological behavior during the extrusion process of a 3D-printable ink.…”

Section: Extrusion Modelmentioning

confidence: 99%

Direct Ink Writing of Recycled Composites with Complex Shapes: Process Parameters and Ink Optimization

et al. 2021

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Within the complex framework of additive manufacturing, direct ink writing (DIW) processes significantly contribute to extending the range of 3D‐printable materials (i.e., thermosetting resins, ceramics, hydrogels). Thanks to this technology, viscous inks are easily extruded for the creation of 3D structures. Nevertheless, the quick recovery of the solid‐like behavior after extrusion remains one of the most crucial open issues for 3D‐printable inks. The main goal herein is to improve the printability of a UV‐curable thermosetting composite ink reinforced with mechanically recycled glass fiber composites by modifying its rheological behavior. The overall process is optimized, leading to the definition of the optimal extrusion parameters for these types of materials. Furthermore, the retraction mode is successfully developed for the DIW of recycled composites. Additional features are achieved, thanks to the aforementioned improvements, such as 3D complex shapes, assembled pieces, and/or moving built‐in mechanisms, increasing the number of new potential applications of recycled glass fiber‐reinforced polymers.

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Section: Extrusion Modelmentioning

confidence: 99%

Direct Ink Writing of Recycled Composites with Complex Shapes: Process Parameters and Ink Optimization

et al. 2021

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“…33,53 The native bone architecture, strength, and material can be mimicked more efficiently with DLP 3D printing, as the technology provides an edge by facilitating the mixing and dispersion of reinforcements similar to the mineral phase of the bone, that is, HAp. [54][55][56] The DLP 3D-printing technology offers several advantages in the context of structure and compositional combinations that a biomaterial candidate can achieve, for example, it helps in achieving precise microarchitectures with interconnected networks similar to that of the trabecular bone. 57 Such an architecture is essential from the point of view of cell proliferation, and hence bone tissue growth.…”

Section: Introductionmentioning

confidence: 99%

“…62 However, with this approach, it is crucial to optimize the formulations as the addition of reinforcements in the photocurable resin results in variations in print depth, print quality, and resin cure profile. 55,[63][64][65] Hence, it is necessary to tune the printability by analyzing the cure characteristics and tweaking the print parameters relevant to regulate the 3D printing efficiency. 66,67 Additionally, composite bone scaffolds thus fabricated with bone-mimicking composition must also demonstrate in vivo biocompatibility before they get claimed as biomaterial candidate for implanting and bone scaffolding applications.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, with the bone‐mimicking approach, DLP as a fabrication technique facilitates the incorporation of suitable bioceramic fillers in a scaffold composition with a biocompatible photocurable resin matrix, which can be useful in replicating the bone composition with tailored design and mass customization 62 . However, with this approach, it is crucial to optimize the formulations as the addition of reinforcements in the photocurable resin results in variations in print depth, print quality, and resin cure profile 55,63–65 . Hence, it is necessary to tune the printability by analyzing the cure characteristics and tweaking the print parameters relevant to regulate the 3D printing efficiency 66,67 .…”

Section: Introductionmentioning

confidence: 99%

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Biomineralized fluorocanasite‐reinforced biocomposite scaffolds demonstrate expedited osteointegration of critical‐sized bone defects

Vyas,

Mondal,

Kumawat

et al. 2023

J Biomed Mater Res

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The development of patient‐specific bone scaffolds that can expedite bone regeneration has been gaining increased attention, especially for critical‐sized bone defects or fractures. Precise adaptation of the scaffold to the region of implantation and reduced surgery times are also crucial at clinical scales. To this end, bioactive fluorcanasite glass‐ceramic microparticulates were incorporated within a biocompatible photocurable resin matrix following which the biocomposite resin precursor was 3D‐printed with digital light processing method to develop the bone scaffold. The printing parameters were optimized based on spot curing investigation, particle size data, and UV–visible spectrophotometry. In vitro cell culture with MG‐63 osteosarcoma cell lines and pH study within simulated body fluid demonstrated a noncytotoxic response of the scaffold samples. Further, the in vivo bone regeneration ability of the 3D‐printed biocomposite bone scaffolds was investigated by implantation of the scaffold samples in the rabbit femur bone defect model. Enhanced angiogenesis, osteoblastic, and osteoclastic activities were observed at the bone‐scaffold interface, while examining through fluorochrome labelling, histology, radiography, field emission scanning electron microscopy, and x‐ray microcomputed tomography. Overall, the results demonstrated that the 3D‐printed biocomposite bone scaffolds have promising potential for bone loss rehabilitation.

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“…Incorporating POSS into polymers may also affect filler-filler or filler-matrix interactions, composite properties, physical or chemical entanglement, and dispersion stability. The linear viscoelastic (LVE) features of a small amplitude oscillatory shear (SAOS) test are one of the adaptable methods for evaluating nanocomposites' filler dispersion, filler-filler or filler-matrix interactions, and polymer entanglement [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Enhanced dispersion stability and interfacial damping of POSS-functionalized graphene oxide in PDMS nanocomposites

Lee

Song

Kim

et al. 2022

Funct. Compos. Struct.

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Polyhedral oligomeric silsesquioxane (POSS) functionalized graphene oxide (GO) is prepared to improve the dispersity of GO nanofillers in a polydimethylsiloxane (PDMS) matrix. Improved interfacial affinity of the GO-POSS with a polymer matrix is characterized by a small amplitude oscillatory shear (SAOS) test. We confirm that the POSS-functionalized GO induces better filler dispersibility and less filler aggregation in the matrix, resulting in enhanced elasticity in the solution. After curing, the POSS interface works as a soft and lubricating layer at the interface, which enhances interfacial damping within the nanocomposites.

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Optimizing the printability and dispersibility of functionalized zirconium oxide/acrylate composites with various nano-to micro-particle ratios

Cited by 18 publications

References 35 publications

Direct Ink Writing of Recycled Composites with Complex Shapes: Process Parameters and Ink Optimization

Direct Ink Writing of Recycled Composites with Complex Shapes: Process Parameters and Ink Optimization

Biomineralized fluorocanasite‐reinforced biocomposite scaffolds demonstrate expedited osteointegration of critical‐sized bone defects

Enhanced dispersion stability and interfacial damping of POSS-functionalized graphene oxide in PDMS nanocomposites

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