Pozzolan Based 3D Printing Composites: From the Formulation Till the Final Application in the Precision Irrigation Field

Schiavone, Nicola; Verney, Vincent; Askanian, Haroutioun

doi:10.3390/ma14010043

Cited by 7 publications

(5 citation statements)

References 54 publications

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“…The observed poor mechanical properties of wood-PLA composites are caused by the poor compatibility of hydrophilic wood and hydrophobic PLA, which results in poor interfacial adhesion. Usually in wood/polymer composites, adhesion is improved by chemical methods with the use of sodium hydroxide, polyolefin, isocyanates, triazines, maleimides, polyols, polyethylene glycol, or mineral fillers [14][15][16][17][18]. The application of these compounds allows for the enhancement of the toughness and strength of PLA-wood composites, but they have a complicated production process and increased costs.…”

Section: Introductionmentioning

confidence: 99%

Discharge Plasma Treatment as an Efficient Tool for Improved Poly(lactide) Adhesive–Wood Interactions

et al. 2021

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Poly(lactide) (PLA) films obtained by thermoforming or solution-casting were modified by diffuse coplanar surface barrier discharge plasma (300 W and 60 s). PLA films were used as hot-melt adhesive in joints in oak wood. It was demonstrated that lap shear strength increased from 3.4 to 8.2 MPa, respectively, for the untreated and plasma-treated series. Pull-off tests performed on particleboard for the untreated and treated PLA films showed 100% cohesive failure. Pull-off strength tests on solid oak demonstrated adhesion enhancement from 3.3 MPa with the adhesion failure mode to 6.6 MPa with the cohesion failure mode for untreated and treated PLA. XPS revealed that carbonyl oxygen content increased by two-to-three-fold, which was confirmed in the Fourier-transform infrared spectroscopy experiments of the treated PLA. The water contact angle decreased from 66.4° for the pristine PLA to 49.8° after treatment. Subsequently, the surface free energy increased from 47.9 to 61.05 mJ/m2. Thus, it was clearly proven that discharge air plasma can be an efficient tool to change surface properties and to strengthen adhesive interactions between PLA and woody substrates.

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Section: Introductionmentioning

confidence: 99%

Discharge Plasma Treatment as an Efficient Tool for Improved Poly(lactide) Adhesive–Wood Interactions

et al. 2021

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“…Additionally, the specific surface area was 559.1 cm 2 /g and 139.0 cm 2 /g for roasted argan cake and pulp, respectively. The distribution lacked dispersibility, and the size of the narrow distribution (span) for roasted argan cake and pulp, respectively, was 3.1 and 2.8, calculated by dividing the difference in diameter at 90% and 10% of the cumulative volume by the diameter at 50% of the cumulative volume [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

Thermal, Morphological and Mechanical Properties of a BioPE Matrix Composite: Case of Shell, Pulp, and Argan Cake as Biofillers

et al. 2023

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Extrusion and hot compressing molding processes were used to create bio-polyethylene (BioPE) composites reinforced with argan byproducts (shell, pulp, and argan cake) as bio-fillers. The thermal stability of the composites wass analyzed by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Dynamical mechanical analysis and rheological testing were used to investigate their mechanical properties. The morphological results showed a good adhesion between the argan and BioPE matrix. More efficient mechanical properties have been distinguished in the case of argan byproduct-based composite. A higher Young’s modulus was noted for all the biocomposites compared to pure BioPE. Thermal analysis revealed that the addition of bio-filler to polymer reduced decomposition temperatures. This study provides an ecological alternative for upgrading the valorization of abundant and underutilized Moroccan biomass. Furthermore, the possibility of using argan byproducts in composite manufacturing will help open up new markets for what is currently considered waste.

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“…Only some studies already developed biodegradable and compostable containers for agriculture through 3D printing. Schiavone, Verney, and Askanian 79 developed a composite made up of natural pozzolan fillers, a pyroclastic rock from industrial mineral waste, and a PLA matrix to generate filaments for 3D printing to produce irrigation pots with a porous structure capable of regulating water flow. On the other hand, Seggiani et al 80 used blends of polycaprolactone (PLA) and collagen to produce pots applicable in agriculture through the FDM printing process.…”

Section: Resultsmentioning

confidence: 99%

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

da Silva Fortes,

de Abreu,

de Sousa Nascimento Junior

et al. 2023

Polymer Composites

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Additive manufacturing, which has become popular in recent years, is the process of joining materials through the deposition of layers to form parts based on data from a 3D model and fused deposition modeling. The search for biodegradable materials for the production of filaments for 3D printing is increasing and opening up possibilities for the development of new sustainable products, including the use of lignocellulosic waste in the formulation. Therefore, the present work aims to develop polymeric filaments based on polybutylene adipate terephthalate and low content (2.5 and 5 wt%) of peanut and soybean shells and evaluate their potential for 3D printing. The charges were characterized in terms of chemical composition. Tensile and dimensional variation tests were performed on samples manufactured from two different filling orientations: −45/45° and 0/90°. The printability of the filament was based on the manufacture of prototypes of agricultural tubes that were also characterized by thermogravimetry and their morphology through scanning electron and optical microscopy. Both natural residues significantly (p < 0.05) affected the sample dimensions and mechanical properties. However, the filling orientation difference was insignificant (p > 0.05). The filaments produced showed good processability, thermal and dimensional stability. The samples produced showed a satisfactory surface finish without exposing load agglomerates. These results demonstrate the feasibility of using lignocellulosic fillers, such as peanut and soybean shells, in additive manufacturing and indicate the possibility of producing parts with varied geometries.Highlights Use of lignocellulosic residues in biodegradable filaments. The filament produced with fillers of peanut and soybean shells showed good processability. Filament fracture depends on the raster angle. It was possible to produce tubes with good surface quality and mechanical properties.

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Pozzolan Based 3D Printing Composites: From the Formulation Till the Final Application in the Precision Irrigation Field

Cited by 7 publications

References 54 publications

Discharge Plasma Treatment as an Efficient Tool for Improved Poly(lactide) Adhesive–Wood Interactions

Discharge Plasma Treatment as an Efficient Tool for Improved Poly(lactide) Adhesive–Wood Interactions

Thermal, Morphological and Mechanical Properties of a BioPE Matrix Composite: Case of Shell, Pulp, and Argan Cake as Biofillers

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

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