<scp>3D</scp>printing of a composite<scp>iPP</scp>/quill of chicken feathers functionalized with pimelic acid

Patiño-Almanza, Rodrigo; Flores-Hernández, Cynthia Graciela; Rivera‐Armenta, José Luis; Strachota, Adam; Almendárez-Camarillo, A.

doi:10.1002/pc.27072

Cited by 5 publications

(4 citation statements)

References 60 publications

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“…The specimen specifications and their geometric were based on ASTM D4065 for DMA and ASTM D256 for Izod (Figure 1). The printing parameters presented in Table 1 are taken from previous research by the research group 35 …”

Section: Experimental Workmentioning

confidence: 99%

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Dynamical mechanical and impact strength behavior of 3D‐printing testing specimens manufactured by fused filament fabrication of isotactic polypropylene/functionalized titania nanotubes nanocomposites: Influence of β‐crystal promoting

Flores,

Martínez,

Padilla

et al. 2024

Polymers for Advanced Techs

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Thermomechanical and impact properties of isotactic polypropylene nanocomposites reinforced with titania nanotubes (TiNTs) at weight distributions of 0.5, 1, and 1.5 wt% were investigated. The goal of this study was to create a novel iPP‐based nanocomposite filament fused filament fabrication (FFF) with improved thermo‐mechanical and impact properties to enable the creation of more customized geometries. First, TiNTs were chemically functionalized with pimelic acid (PA) to promote the β‐crystalline phase using Ca as anchoring. FTIR results revealed the presence of new bands at 1575 and 1413 cm−1, which were attributed to the anchoring of the PA molecule on the TiNT surface. TEM images of the TiNTs confirmed its tubular morphology before and after the functionalization, while the SEM/EDS analysis showed the good dispersion of carbon which can only come from the organic molecule employed in the functionalization. The nano‐reinforcements were incorporated by extrusion generating a filament to produce 3D‐printed specimens. The efficacy of the modified reinforcement as a β‐crystalline phase promoter was evaluated by wide‐angle x‐ray diffraction. The nanocomposite with 1% modified TiNTs showed the highest β‐crystal promotion with a kβ‐index of 89% while the nanocomposites reinforced with unmodified TiNTs reached only 15%. Furthermore, the thermomechanical and impact properties were characterized by dynamic mechanical analysis and Izod. In the first, the storage modulus (E′) was higher than the raw iPP for all nanocomposites, with an increase of about 148% and 107%, while the nanocomposite with a high percentage of β‐crystal showed an increase of 183% in the impact strength properties. A shift of Tg to higher temperatures was attributed to better interfacial interactions polymer/nano‐reinforcement because of the functionalization. The modified nano‐reinforcement was able to generate a 3D‐printed nanocomposite with higher stiffness and impact strength properties than the raw iPP.

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Section: Experimental Workmentioning

confidence: 99%

“…The printing parameters presented in Table 1 are taken from previous research by the research group. 35…”

Section: Dma and Izod Specimen Fabricationmentioning

confidence: 99%

Dynamical mechanical and impact strength behavior of 3D‐printing testing specimens manufactured by fused filament fabrication of isotactic polypropylene/functionalized titania nanotubes nanocomposites: Influence of β‐crystal promoting

Flores,

Martínez,

Padilla

et al. 2024

Polymers for Advanced Techs

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“…Las especificaciones geométricas de las probetas se han basado en la norma ASTM: D4065 para análisis de DMA. Los parámetros de impresión que a continuación se presentan en la Tabla 1 y los parámetros de fabricación de filamento se han tomado de investigaciones previas realizadas por el grupo de investigación (Patiño-Almanza et al, 2022). 2.3 Caracterización de polimorfo cristalino β por medio de difracción de rayos-X de ángulo amplio para los nanocompósitos de iPP/TiNTs.…”

Section: Materiales Y Métodosunclassified

Modelado por deposición fundida de polipropileno isotáctico reforzado con nanotubos de titanio (TiNTs).

Ramírez-Flores

Villarreal-Martinez²,

Patiño-Almanza³

et al. 2022

ICBI

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En este trabajo se evaluó el rendimiento de refuerzo de nanotubos de Titania en una matriz de polipropileno isotáctico (iPP). Este refuerzo se añadió al 1,0 y 1,5% en peso en la matriz de polipropileno. Para verificar la formación de la estructura tubular, se realizó un análisis FT-IR, mostrando la presencia de las bandas 912 y 647 cm−1 que corresponden a la región de frecuencia del esqueleto del nanotubo de Titania. Se fabricó un filamento de los nanocompositos para la impresión de probetas mediante FDM con ayuda de una impresora Ender 3 Pro. Las propiedades termo-mecánicas se caracterizaron mediante análisis mecánico dinámico (DMA) donde, para los compositos 1,0 y 1,5% en peso. El módulo de almacenamiento (E') fue superior en comparación con el iPP puro, mostrando una mejoría del (40% y 60%) respectivamente.

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“…They have also compared the physico‐mechanical properties of FFF samples with compression‐molded samples using the same grade of raw materials. Long et al 7 and Almanza et al 8 have also constituted ternary composites with PP in 3D mode and studied their failure properties.…”

Section: Introductionmentioning

confidence: 99%

How open‐stage melt crystallization affects tensile and shrinkage properties of 3D printed polypropylene

Chatterjee

Chanda

et al. 2023

Polymer Engineering & Sci

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Melt crystallization of isotactic Polypropylene (PP) on open platform during 3D processing is critical and often challenging. Numerous factors that influence the melt extrusion of PP directly influence its crystallization and hence impact the physico‐mechanical properties of the printed parts. The present article represents a detailed investigation of the influence of 3D processing parameters on tensile and shrinkage properties of PP subject to respective melt‐crystallization behaviors. Moreover, the article also demonstrated the best experimental conditions that can produce mechanically stronger parts (even stronger than compression molded specimens used for comparison) with minimum warping. Influence of print temperature, bed temperature, print layer thickness (when the layer thickness varies by a margin of four folds), print orientation (horizontal or vertical), and infill rates was found to be highly sensitive towards melt crystallization of the PP dumbbell (which was printed as a product) hence brought about the highest variation in tensile and shrinkage properties. A print head temperature of above 220°C and a bed temperature of 60°C produced stronger dumbbells when printed with a higher layer thickness (0.20 mm/0.25 mm) in horizontal conditions with a 100% infill rate. Such specimens possessed higher tensile strength, and elongation at break values than the compression molded sample.

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3Dprinting of a compositeiPP/quill of chicken feathers functionalized with pimelic acid

Cited by 5 publications

References 60 publications

Dynamical mechanical and impact strength behavior of 3D‐printing testing specimens manufactured by fused filament fabrication of isotactic polypropylene/functionalized titania nanotubes nanocomposites: Influence of β‐crystal promoting

Dynamical mechanical and impact strength behavior of 3D‐printing testing specimens manufactured by fused filament fabrication of isotactic polypropylene/functionalized titania nanotubes nanocomposites: Influence of β‐crystal promoting

Modelado por deposición fundida de polipropileno isotáctico reforzado con nanotubos de titanio (TiNTs).

How open‐stage melt crystallization affects tensile and shrinkage properties of 3D printed polypropylene

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