Improving mechanical properties and biocompatibility of 3D printed PLA by the addition of PEG and titanium particles, using a novel incorporation method

Asadollahi, Mohammad; Gerashi, Ehsan; Zohrevand, Mohammad; Zarei, Masoud; Sayedain, Sayed Shahab; Alizadeh, Reza; Labbaf, Sheyda; Atari, Mehdi

doi:10.1016/j.bprint.2022.e00228

Cited by 32 publications

(17 citation statements)

References 31 publications

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“…The elongation at break (EB) was found to be decreased to 50.3 (pure PVA film), 12.77, 9.39, 6.14, and 5.15% with the addition of 5–20 wt % of CPSP in the PVA matrix. The trend observed in the elongation at break in the study was similar to the loading of LASP and green banana peel powder with PVA described in previous studies. The mechanical properties and thicknesses of film samples are listed in Table .…”

Section: Results and Deliberationsupporting

confidence: 89%

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Medadurai,

Pandiarajan,

Balasubramanian

et al. 2023

ACS Omega

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Ceiba pentandra shell powder (CPSP) biowaste is chosen as a biofiller combined with poly(vinyl alcohol) (PVA) as a matrix to make biofilms to increase the exploitation of biowaste materials and reduce the use of plastic materials. FTIR plots indicated no significant chemical reaction or formation of new functional groups during interaction between PVA and CPSP. XRD diffractograms showed that the crystallinity index (35.

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Section: Results and Deliberationsupporting

confidence: 89%

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Medadurai,

Pandiarajan,

Balasubramanian

et al. 2023

ACS Omega

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“…grade 99.9%, Sigma-Aldrich, Germany) were used to prepare PLA/Ti64 composites. Details of the filament fabrication method is explained elsewhere 85 and is described briefly here. Initially, PLA pellets were placed in an oven at 60 °C for 6 h to eradicate moisture.…”

Section: Methodsmentioning

confidence: 99%

Enhanced bone tissue regeneration using a 3D-printed poly(lactic acid)/Ti6Al4V composite scaffold with plasma treatment modification

Zarei

Dargah

Azar

et al. 2023

Sci Rep

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The mechanical and biological properties of polylactic acid (PLA) need to be further improved in order to be used for bone tissue engineering (BTE). Utilizing a material extrusion technique, three-dimensional (3D) PLA-Ti6Al4V (Ti64) scaffolds with open pores and interconnected channels were successfully fabricated. In spite of the fact that the glass transition temperature of PLA increased with the addition of Ti64, the melting and crystallization temperatures as well as the thermal stability of filaments decreased slightly. However, the addition of 3–6 wt% Ti64 enhanced the mechanical properties of PLA, increasing the ultimate compressive strength and compressive modulus of PLA-3Ti64 to 49.9 MPa and 1.9 GPa, respectively. Additionally, the flowability evaluations revealed that all composite filaments met the print requirements. During the plasma treatment of scaffolds, not only was the root-mean-square (Rq) of PLA (1.8 nm) increased to 60 nm, but also its contact angle (90.4°) significantly decreased to (46.9°). FTIR analysis confirmed the higher hydrophilicity as oxygen-containing groups became more intense. By virtue of the outstanding role of plasma treatment as well as Ti64 addition, a marked improvement was observed in Wharton's jelly mesenchymal stem cell attachment, proliferation (4′,6-diamidino-2-phenylindole staining), and differentiation (Alkaline phosphatase and Alizarin Red S staining). Based on these results, it appears that the fabricated scaffolds have potential applications in BTE.

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“…55 In contrast, AF presents a hydrophilic profile, characteristic of most natural fibers, 56 and therefore, the interaction between PLA and fiber caused surface alteration and increased hydrophilicity. Asadollahi et al 57 F I G U R E 4 FTIR spectra of PLA + 5% AF (a); PLA, PLA/5% AF, PLA/10%AF (b). FTIR, Fourier-transform infrared spectroscopy; PLA, poly(lactic) acid.…”

Section: Contact Anglementioning

confidence: 99%

Enhancement of sustainable fused deposition modeling 3D‐printing with agave Americana fiber‐reinforced poly(lactic) acid biofilaments

da Silva Neto,

de Freitas,

Barbosa

et al. 2023

J of Applied Polymer Sci

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Additive manufacturing (AM) of eco‐friendly biocomposites has been growing recently to obtain green fillers capable of reducing bioplastic costs without compromising the material processability and performance. This paper aims to study the effect of using different Agave America fiber volume ratios on the morphological, chemical, and thermal properties, contact angle, and hardness of poly(lactic) acid (PLA) filament for 3D printing. Sustainable biofilaments of PLA filled with 10 and 5 wt% of Agave Americana fiber were prepared in a thermokinetic mixer and extruded in a machine, and then used to print testing samples using fused deposition modeling (FDM) 3D printer. Biofilaments were characterized using scanning electron microscopy (SEM), thermogravimetry (TGA), differential scanning calorimetry (DSC), and Fourier‐transform infrared spectroscopy (FTIR) techniques. The addition of fiber did not significantly influence the biofilament's diameter and density compared to pure PLA. On the other hand, it influenced printed biofilaments' thermal stability and morphological characteristics. The biocomposites developed have shown enhancement in their shore hardness. Thus, the use of Agave Americana fiber reinforced in a PLA matrix did not compromise its thermal properties, nor its processability and printability, which could open the possibility of future research with a biocomposite with higher fiber content and an environmentally friendly alternative over traditional filler materials.

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Improving mechanical properties and biocompatibility of 3D printed PLA by the addition of PEG and titanium particles, using a novel incorporation method

Cited by 32 publications

References 31 publications

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Enhanced bone tissue regeneration using a 3D-printed poly(lactic acid)/Ti6Al4V composite scaffold with plasma treatment modification

Enhancement of sustainable fused deposition modeling 3D‐printing with agave Americana fiber‐reinforced poly(lactic) acid biofilaments

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