Process‐property relationship in polylactic acid composites reinforced by iron microparticles and<scp>3D</scp>printed by fused filament fabrication

Hasanzadeh, Rezgar; Mihankhah, Peyman; Azdast, Taher; Bodaghi, Mahdi; Moradi, Mahmoud

doi:10.1002/pen.26556

Cited by 9 publications

(3 citation statements)

References 37 publications

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“…9 Numerous methods have been used for the production of three-dimensional porous polymeric scaffolds utilized in bone regeneration. [10][11][12][13][14] These processes primarily involve solvent casting and particulate leaching, gas foaming, emulsion freeze-drying, electrospinning, and 3D printing. [12][13][14] Each of these methods has its specific drawbacks.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of bone tissue engineering scaffolds with a hierarchical structure using combination of 3D printing/gas foaming techniques

Aghaiee,

Azdast,

Hasanzadeh

et al. 2024

J of Applied Polymer Sci

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The goal of this research was to study and optimize the structure and geometric features of scaffolds made using a combined method of 3D printing and gas foaming. This endeavor aimed to produce scaffolds with a hierarchical structure that closely resemble bone tissue. The study examined the effects of saturation pressure, foam temperature, and foam time on the scaffolds using response surface methodology (RSM). RSM is statistical technique used for optimizing and analyzing processes by modeling relationship between input variables and output responses. The results of multi‐objective optimization showed that highest pressure (55 MPa), the shortest time (40 s), and the temperature of 68°C were the optimal conditions. RSM was also used to develop mathematical models of structural properties, dimensional accuracy, and mechanical strength, focusing on different foam parameters, which could be used to predict desired properties. Subsequently, the designed scaffold underwent MTT assay testing to assess cell toxicity indicating its biocompatibility. The results demonstrate that by using the correct foam parameters in combination with 3D printing, it is possible to achieve polymer scaffolds with proportional dimensions, geometry, and mechanical strength suitable for cell growth to use inside the human body.

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Section: Introductionmentioning

confidence: 99%

“…[10][11][12][13][14] These processes primarily involve solvent casting and particulate leaching, gas foaming, emulsion freeze-drying, electrospinning, and 3D printing. [12][13][14] Each of these methods has its specific drawbacks. In the particulate leaching method, there is no control of open pores connection.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of bone tissue engineering scaffolds with a hierarchical structure using combination of 3D printing/gas foaming techniques

Aghaiee,

Azdast,

Hasanzadeh

et al. 2024

J of Applied Polymer Sci

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“…The significant effect of printing parameters on the properties of the final manufactured component and the use of novel geometric parameters. A key challenge in manufacturing composite components via this method is to find the relationship between the mechanical characteristics of the parts and the process parameters [16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the 3D Printing of Nylon Reinforced by Carbon Fiber through Fused Filament Fabrication Process, Effects of Extruder Temperature, and Printing Speed

Moradi,

Malekshahi Beiranvand,

Salimi

et al. 2024

International Journal of Polymer Science

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This study investigated how the extruder temperature, printing speed, and specimen geometry interact during a tensile test of continuous carbon fiber-reinforced nylon matrix composites produced by the fused deposition modelling (FDM) process. The investigation utilized statistical techniques. For this purpose, tensile examinations were done on manufactured samples using a testing apparatus. The study’s objective is to identify the most efficient specimen geometry for tensile testing result optimization and to maximize the 3D printing process’s capability for producing complex, freeform patterns in these composites. In this study, the input parameters required for the response surface methodology (RSM) were varying extruder temperature (240-255°C) and printing speed (60-80 mm/s), and experimental responses included modulus, elongation at break, and weight. The findings of the regression analysis showed output responses are influenced by both input variables. The results showed that the strength of the samples was significantly influenced by the input parameters. To draw the surface and residual plots, the software of design expert software was used. The interaction between the two input variables suggests raising the extruder temperature and decreasing printing speed, which leads to printing heavier samples. Inversely, the diversity between the forecasted and real responses for the optimal specimens is less than 10% which is assumed to be acceptable for the design of experiments (DOE). The analysis took into account the lower and upper ranges of the input variable with the goal of enhancing both the most modulus and fracture elongation while simultaneously degrading the weight of the specimens. To achieve this objective, the extruder temperature and printing speed are between 240 and 250°C and 65 and 75 mm/s, respectively.

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A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

Srivastava,

Bhati,

Singh

et al. 2024

Polymer Engineering & Sci

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Poly(lactic acid) (PLA) is one of the most promising biopolymers extensively used in food, packaging, medical and pharmaceutical industries. It is due to favorable physicochemical properties, in‐situ hydrolytic degradation and well‐established processing parameters. However, in medical engineering applications, PLA shows some drawbacks like low cell adhesion, biological inertness, slow degradation rate and high acid inflammation. These shortcomings of pure PLA could be addressed by blending it with other bioresorbable materials and compatibilizers. This review provides comprehensive information on different PLA composites in the field of tissue engineering, implants, injury management and drug delivery systems. The PLA‐based composites are divided into four parts: PLA/polymer, PLA/metal, PLA/ceramic, and PLA/nanoparticles. It also investigates various synthesis process, role of different compatibilizers, in vitro studies and their in vivo applications.Highlights Review the trends of bioresorbable PLA blends/composites. Extensively focused on PLA blend with polymer, metal, ceramic, and nanoparticles. Role of reinforcement and compatibilizer to overcome shortcomings of PLA implant. Highlights advantages, limitations, and properties of different types of PLA implants. Discuss various clinical applications and future of PLA blends/composite scaffolds.

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Process‐property relationship in polylactic acid composites reinforced by iron microparticles and3Dprinted by fused filament fabrication

Cited by 9 publications

References 37 publications

Fabrication of bone tissue engineering scaffolds with a hierarchical structure using combination of 3D printing/gas foaming techniques

Fabrication of bone tissue engineering scaffolds with a hierarchical structure using combination of 3D printing/gas foaming techniques

Experimental Investigation on the 3D Printing of Nylon Reinforced by Carbon Fiber through Fused Filament Fabrication Process, Effects of Extruder Temperature, and Printing Speed

A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

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