Thermal Studies of Three-Dimensional Printing Using Pulsed Laser Heating

Xiao, Yue; Hong, Zhihan; Coleman, G.P.; Zhao, Hongbo; Liang, Rongguang; Lucas, Pierre; Hao, Qingbin

doi:10.30919/esmm5f103

Cited by 10 publications

(9 citation statements)

References 16 publications

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“…Depending on the material and machine technology, there are several different processes to perform layer manufacturing. Among them, fused filament fabrication (FFF), selective laser sintering (SLS), stereolithography (SLA), laminated object manufacturing (LOM) and fused particle fabrication (FPF) are of relevant importance [1,2,3,4,5,6]. In particular, the FFF technique is the most used method for polymer-based modeling [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Porosity and Crystallinity on 3D Printed PLA Properties

et al. 2019

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Additive manufacturing (AM) is a promising technology for the rapid tooling and fabrication of complex geometry components. Among all AM techniques, fused filament fabrication (FFF) is the most widely used technique for polymers. However, the consistency and properties control of the FFF product remains a challenging issue. This study aims to investigate physical changes during the 3D printing of polylactic acid (PLA). The correlations between the porosity, crystallinity and mechanical properties of the printed parts were studied. Moreover, the effects of the build-platform temperature were investigated. The experimental results confirmed the anisotropy of printed objects due to the occurrence of orientation phenomena during the filament deposition and the formation both of ordered and disordered crystalline forms (α and δ, respectively). A heat treatment post-3D printing was proposed as an effective method to improve mechanical properties by optimizing the crystallinity (transforming the δ form into the α one) and overcoming the anisotropy of the 3D printed object.

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Section: Introductionmentioning

confidence: 99%

Effect of Porosity and Crystallinity on 3D Printed PLA Properties

et al. 2019

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“…Figure 1 describes various techniques of a typical AM processes, used for printing polymeric, metallic and ceramic components. Polymer 3D printing techniques incorporate resin-, powder-based, and extrusion processes (Figure 2) [28][29][30][31][32][33]. Each of these processing step facilitates the layer-by-layer deposition of materials to build the 3D objects and parts [34].…”

Section: Three-dimensional Printing (3dp)mentioning

confidence: 99%

Preparation of Smart Materials by Additive Manufacturing Technologies: A Review

Mondal

Tripathy

2021

Materials

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Over the last few decades, advanced manufacturing and additive printing technologies have made incredible inroads into the fields of engineering, transportation, and healthcare. Among additive manufacturing technologies, 3D printing is gradually emerging as a powerful technique owing to a combination of attractive features, such as fast prototyping, fabrication of complex designs/structures, minimization of waste generation, and easy mass customization. Of late, 4D printing has also been initiated, which is the sophisticated version of the 3D printing. It has an extra advantageous feature: retaining shape memory and being able to provide instructions to the printed parts on how to move or adapt under some environmental conditions, such as, water, wind, light, temperature, or other environmental stimuli. This advanced printing utilizes the response of smart manufactured materials, which offer the capability of changing shapes postproduction over application of any forms of energy. The potential application of 4D printing in the biomedical field is huge. Here, the technology could be applied to tissue engineering, medicine, and configuration of smart biomedical devices. Various characteristics of next generation additive printings, namely 3D and 4D printings, and their use in enhancing the manufacturing domain, their development, and some of the applications have been discussed. Special materials with piezoelectric properties and shape-changing characteristics have also been discussed in comparison with conventional material options for additive printing.

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“…[18,19] Their ability to absorb huge volumes of water up to thousands of times their dry weight and their biomimeticity to the extracellular matrix (ECM) of living tissues, make them promising materials for a variety of medical and biomedical applications. [20][21][22] Injectable hydrogels jellify after a while to form a soft, self-standing and 3D mold-shape materials, and even can be injected to specific sites invivo. [23][24][25][26][27] They have distinctive biomedical and therapeutic properties with respect to surgically implantable materials such as minimal invasive delivery, minimum healing time, diminished scarring, least risk of infection, and ease of site-injection, [21,22,25,26,28] Various natural and synthetic injectable hydrogels have been synthesized for tissue engineering and regenerative medicine such as chitosan, [29,30] collagen/gelatin, [31,32] alginate, [33] fibrin, [34] elastin, [35] heparin, [36] hyaluronic acid, [37] PEG, [38,39] PCL, [40] and PLGA.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional sustainable quercetin polyphenol/functionalized carbon nanotubes; semi‐transparent conductive films and 3D printing inks

Fares

Radaydeh

2022

Polymer Composites

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Semi‐transparent conductive films (semi‐TCFs) were fabricated from sustainable onion quercetin polyphenol and functionalized carbon nanotubes (F‐CNTs) in presence of different metal ion crosslinking agents via layer‐by‐layer technique. Layer‐by‐layer semi‐TCFs were fabricated in presence of metal ion crosslinking agents of Ca2+, Ti2+, Sn2+, and Fe3+ ions. Optical transmittance values was in the range of 41%–67%, sheet resistance in 17–1567 kΩ/sq, and σdc/σop in 0.0005–0.02 range, which confirm their semi‐TCFs characteristics. Optimum performance of single‐layer F‐CNTs semi‐TCFs was as follows; transmittance = 46.6%, sheet resistance = 6.5 kΩ/sq, and σdc/σop = 0.06. 3D printing inks and injectable hydrogels were also fabricated from multifunctional sustainable onion/F‐CNTs in presence gelatin. Proposed mechanism of gelation was established for the 3D printing ink, and the semi‐Interpenetrating network hydrogel was verified using spectroscopic ATR‐FTIR technique. The injectable hydrogel showed promising characteristics of robustness, elasticity, anti‐microbial activity, biocompatibility, and stretchable low cost multifunctional materials that adapt them to be successfully employed in biomedical and surgical applications. Characteristic peaks that demonstrate chemical structure of quercetin and successful functionalization of F‐CNTs were observed in 1H‐NMR and ATR‐FTIR spectra. High thermal stability of F‐CNTs was observed (694°C) in TGA and DTG thermograms, and two C(002) and C(100) crystal structures of F‐CNTs were result. Topologic nanostructure of F‐CNTs and spherical shape clusters of quercetin were demonstrated using optical and scanning electron microscope images.

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Thermal Studies of Three-Dimensional Printing Using Pulsed Laser Heating

Cited by 10 publications

References 16 publications

Effect of Porosity and Crystallinity on 3D Printed PLA Properties

Effect of Porosity and Crystallinity on 3D Printed PLA Properties

Preparation of Smart Materials by Additive Manufacturing Technologies: A Review

Multifunctional sustainable quercetin polyphenol/functionalized carbon nanotubes; semi‐transparent conductive films and 3D printing inks

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