Innovative exploration of additive incorporated biopolymer-based composites

Amenorfe, Leticia Peace; Agorku, Eric Selorm; Sarpong, Frederick; Voegborlo, R. B.

doi:10.1016/j.sciaf.2022.e01359

Cited by 10 publications

(6 citation statements)

References 123 publications

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“…Related to the 45 samples, the mechanical parameters were lower (approximately 133 MPa and 9.7 GPa). R-PLA(5) 15.64 ± 0.45 14.98 ± 0.15 8.77 ± 0.31 218.0 ± 18.2 224.6 ± 9.9 105.0 ± 7.6 R-PLA(10) 17.25 ± 0.51 13.63 ± 0.59 8.64 ± 0.40 291.3 ± 16.9 182.2 ± 9.4 93.9 ± 6.2 R-PLA(20) 15.25 ± 1.63 12.82 ± 0.92 7.58 ± 0.50 208.3 ± 13.3 163.9 ± 25.1 85.7 ± 4.4 R-PLA(30) 13.35 ± 0.30 13.82 ± 0.64 8.93 ± 0.11 186.6 ± 9.5 138.0 ± 23.4 102.4 ± 4.2 R-PLA(40) 12.96 ± 0.65 12.20 ± 0.54 7.76 ± 0.23 176.0 ± 7.7 150.1 ± 32.0 87.1 ± 1.1…”

Section: One-directional Tensile Test Before Agingmentioning

confidence: 99%

“…Materials 2024, 17, 1069 2 of 13 One example of such an additive to epoxy resin that will partially replace it is biopolymers that are derived from renewable agricultural and biomass feedstock [11,12]. They are gaining importance due to their unique properties, including, above all, high availability, low weight, biocompatibility, biodegradability, and strong barrier capacity [13,14]. These features make them an ideal substitute for petroleum-based products [15].…”

Section: Introductionmentioning

confidence: 99%

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Influence of a Biofiller, Polylactide, on the General Characteristics of Epoxy-Based Materials

Plota-Pietrzak,

Czechowski,

Masek

2024

Materials

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The aim of this work was to obtain epoxy-based composite structures with good mechanical performance, high aging resistance, and an improved degradability profile. For this purpose, powdered polylactide in the amount of 5, 10, 20, 30, and 40 phr was introduced into the epoxy resin, and the composites were fabricated by a simple method, which is similar to that used on an industrial scale in the fabrication of these products. The first analysis concerned the study of the effect of PLA addition to epoxy resin-based composites on their mechanical properties. One-directional tensile tests of samples were performed for three directions (0, 90, and 45 degrees referring to the plate edges). Another aspect of this research was the assessment of the resistance of these composites to long-term exposure to solar radiation and elevated temperature. Based on the obtained results, it was observed that the samples containing 20 or 40 phr of polylactide were characterized by the lowest resistance to the solar aging process. It was therefore concluded that the optimal amount of polylactide in the epoxy resin composite should not be greater than 10 phr to maintain its mechanical behavior and high aging resistance. In the available literature, there are many examples in which scientists have proposed the use of various biofillers (e.g., lignin, starch, rice husk, coconut shell powder) in epoxy composites; however, the impact of polylactide on the general characteristics of the epoxy resin has not been described so far. Therefore, this work perfectly fills the gaps in the literature and may contribute to a more widespread use of additives of natural origin, which may constitute an excellent alternative to commonly used non-renewable compounds.

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Section: One-directional Tensile Test Before Agingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of a Biofiller, Polylactide, on the General Characteristics of Epoxy-Based Materials

Plota-Pietrzak,

Czechowski,

Masek

2024

Materials

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“…The replacement of petroleum-based polymers with natural polymers is being widely explored as they are eco-friendly and sustainable. − Cellulose is a natural polymer, insoluble in water and many organic solvents . Cellulose can be derivatized through its treatment with sodium hydroxide and monochloride acetic acid (Williamson ether process) to produce sodium salt of carboxymethyl cellulose (CMC). , CMC is water-soluble, nontoxic, and biodegradable and acts as a viscosifier. , By virtue of these properties, CMC in the aqueous phase can be used to effortlessly fabricate high-quality eco-friendly films for various purposes, notably biopackaging. − …”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting Using High-Strength and Flexible 3D-Printed Cellulose/Hexagonal Boron Nitride Nanosheet Composites

Jayakumar,

Ambekar,

Mahapatra

et al. 2023

ACS Appl. Nano Mater.

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As a natural polymer, cellulose is abundant, low-cost, robust, and biodegradable and can be chemically modified. This work explores the enhancement of mechanical, thermal, and flexoelectric properties of three-dimensional (3D)-printed carboxymethyl cellulose (CMC) due to the addition of mechanically exfoliated hexagonal boron nitride (hBN). hBN was observed to act as a rheology modifier, and CMC reinforced with 2% hBN exhibited the maximum apparent viscosity of 12.24 Pa•s at a shear rate of 100 s −1 . The 0.5% hBN/CMC film exhibited the highest mechanical and thermal stability. A flexoelectric energy harvester was fabricated out of 3D-printed hBN/CMC composites to test the effectiveness of strain-induced charge production. By varying the load resistance and applied pressure, we were able to measure the voltage and current flowing through the device. We found that a load resistance of 180 kΩ connected across a 2% hBN/CMC device resulted in the highest power delivery of 5.5 nW. When mechanical strain is applied, a charge state fluctuation and spontaneous polarization in the hBN/CMC matrix are seen. This phenomenon can be explained based on the flexoelectric energy-harvesting mechanism, supported by density functional theory (DFT) calculations.

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“…[1][2][3] One promising approach in this endeavor is to tailor the properties of bio-polymers by incorporating synthetic monomers with enhanced mechanical properties in a controlled manner to impart new properties. [4][5][6] This strategy can potentially be employed to modulate the bio-compatibility and biodegradation rate of the resulting bio-polymer matrix. [7,8] However, owing to the intricate nature of biopolymer structure, the incorporation of synthetic polymers into biological systems is a challenging task that requires new methodologies for polymer synthesis and assembly.…”

Section: Introductionmentioning

confidence: 99%

Particle Network Self‐Assembly of Similar Size Sub‐Micron Calcium Alginate and Polystyrene Particles Atop Glass

Onuh

Bar‐On

Manor

2023

Macromolecular Bioscience

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Particle‐mediated self‐assembly, such as nanocomposites, microstructure formation in materials, and core‐shell coating of biological particles, offers precise control over the properties of biological materials for applications in drug delivery, tissue engineering, and biosensing. We study the assembly of similar‐sized calcium alginate (CAG) and polystyrene sub‐micron particles in an aqueous sodium nitrate solution as a model for particle‐mediated self‐assembly of biological and synthetic mixed particle species. The objective is to reinforce biological matrixes by incorporating synthetic particles to form hybrid particulate networks with tailored properties. By varying the ionic strength of the suspension, we alter the energy barriers for particle attachment to each other and to a glass substrate that results from colloidal surface forces. The particles do not show monotonic adsorption trend to glass with ionic strength. Hence, apart from DLVO theory—van der Waals and electrostatic interactions—we further consider solvation and bridging interactions in our analysis of the particulate adsorption‐coagulation system. CAG particles, which support lower energy barriers to attachment relative to their counterpart polystyrene particles, accumulate as dense aggregates on the glass substrate. Polystyrene particles adsorb simultaneously as detached particles. At high electrolyte concentrations, where electrostatic repulsion is largely screened, the mixture of particles covers most of the glass substrate; the CAG particles form a continuous network throughout the glass substrate with pockets of polystyrene particles. The particulate structure is correlated with the adjustable energy barriers for particle attachment in the suspension.This article is protected by copyright. All rights reserved

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Innovative exploration of additive incorporated biopolymer-based composites

Cited by 10 publications

References 123 publications

Influence of a Biofiller, Polylactide, on the General Characteristics of Epoxy-Based Materials

Influence of a Biofiller, Polylactide, on the General Characteristics of Epoxy-Based Materials

Energy Harvesting Using High-Strength and Flexible 3D-Printed Cellulose/Hexagonal Boron Nitride Nanosheet Composites

Particle Network Self‐Assembly of Similar Size Sub‐Micron Calcium Alginate and Polystyrene Particles Atop Glass

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