On mechanical, thermal and morphological investigations of almond skin powder-reinforced polylactic acid feedstock filament

Kumar

Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci.

et al. 2021

Self Cite

In this study, the ZnO nanoparticles (NP) prepared by sol-gel method have been reinforced with polylactic acid by novel co-rotating twin-screw compounder to prepare feedstock filaments for 3D printer. The processed PLA-ZnO feedstock filaments were subjected to mechanical, thermal and morphological analysis. The results of the study suggested that PLA-2% ZnO feedstock filaments prepared under 15 kg load and 0.15Nm torque exhibited better mechanical properties. On account of shape memory effects, PLA-ZnO composite has shown the good shape recovery up to 99.77% (based upon dimensional change) and 100% (based upon weight change) under hydro-thermal stimulus.

Section: Mechanical and Surface Propertiessupporting

confidence: 91%

On Mechanical, Thermal, Morphological and Shape Memory Effect of Sol-Gel Prepared ZnO Nanoparticle Reinforced PLA Composites Materials

Kumar

Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci.

et al. 2021

Self Cite

“…Looking at a more environmentally friendly use, the role of ASP has been recently studied in enhancing the mechanical performance of some melt compounded biopolymers [25][26][27]. Nonetheless, due to the lack of miscibility between hydrophobic polymer matrices and highly hydrophilic almond shell fillers, the obtained green composites usually presented poor ductility and low thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Effect of Almond Shell Waste on Physicochemical Properties of Polyester-Based Biocomposites

et al. 2020

Polyester-based biocomposites containing INZEA F2® biopolymer and almond shell powder (ASP) at 10 and 25 wt % contents with and without two different compatibilizers, maleinized linseed oil and Joncryl ADR 4400®, were prepared by melt blending in an extruder, followed by injection molding. The effect of fine (125–250 m) and coarse (500–1000 m) milling sizes of ASP was also evaluated. An improvement in elastic modulus was observed with the addition of< both fine and coarse ASP at 25 wt %. The addition of maleinized linseed oil and Joncryl ADR 4400 produced some compatibilizing effect at low filler contents while biocomposites with a higher amount of ASP still presented some gaps at the interface by field emission scanning electron microscopy. Some decrease in thermal stability was shown which was related to the relatively low thermal stability and disintegration of the lignocellulosic filler. The added modifiers provided some enhanced thermal resistance to the final biocomposites. Thermal analysis by differential scanning calorimetry and thermogravimetric analysis suggested the presence of two different polyesters in the polymer matrix, with one of them showing full disintegration after 28 and 90 days for biocomposites containing 25 and 10 wt %, respectively, under composting conditions. The developed biocomposites have been shown to be potential polyester-based matrices for use as compostable materials at high filler contents.

J of Applied Polymer Sci

“…Some of the plant‐based fillers include biomass (cellulose, lignin, hemicellulose etc. ), 76,102 sugarcane bagasse, 103 husks from rice and wood, 104–106 fibers from banana, 44 pine, hemp, harakeke, 107 jute, flax, 108 bamboo, 109 thermomechanical pulp, 110 cork powder, 111 saw dust, 68 cardboard dust, wood flour, 112,113 cocoa shells, 114 walnut shell powder, 115 almond skin powder, 116 and so on. The inclusion of fillers causes shrinkage which makes printing more accurate 117 .…”

Section: Methodsmentioning

confidence: 99%

A short review on fused deposition modeling 3D printing of bio‐based polymer nanocomposites

Mandala

Bannoth

Akella³

et al. 2021

Fused deposition modeling (FDM), one among the most commonly used additive manufacturing (AM), techniques has been widely used in recent years to produce customized parts with intricate geometries, especially from thermoplastics. This method was limited in its ability to produce parts for industrial applications due to inferior properties and the poor quality of fabricated parts. Hence, researchers are being driven to discover novel materials that are viable for FDM in order to keep up with enormous demand for functional products. In the recent years, it is widely recognized that the emphasis was placed on the bio‐based polymer composite matrices rather than conventional thermoplastics due to its vital advantages that aid in the replacement of synthetic and perilous materials. On this context, this review focuses on the recent advancements in FDM printing with biomaterials. Specifically, attempts have been made to investigate and provide nutshell of 3D printing of current bio‐based nanocomposites which consist of either bio‐derived filler or polymer matrices in order to make 3D printing sustainable. The effect of fillers on the filaments and FDM based products, evolution of novel characteristics of bio nanocomposites, the printability of the developed composites and their development in leading applications were also investigated and summarized.