Development and Evaluation of Mechanical Properties of Biodegradable PLA/Flax Fiber Green Composite Laminates

Motru, Suneel; Adithyakrishna, V H; Bharath, J; Guruprasad, R.

doi:10.1016/j.matpr.2020.04.318

Cited by 40 publications

(15 citation statements)

References 8 publications

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“… Loading versus displacement graphs from: ( a ) tensile test; ( b ) compression test; and ( c ) bending test. Reproduced with permission from [ 305 ]. …”

Section: Figurementioning

confidence: 99%

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Critical Review of Biodegradable and Bioactive Polymer Composites for Bone Tissue Engineering and Drug Delivery Applications

et al. 2021

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In the determination of the bioavailability of drugs administered orally, the drugs’ solubility and permeability play a crucial role. For absorption of drug molecules and production of a pharmacological response, solubility is an important parameter that defines the concentration of the drug in systemic circulation. It is a challenging task to improve the oral bioavailability of drugs that have poor water solubility. Most drug molecules are either poorly soluble or insoluble in aqueous environments. Polymer nanocomposites are combinations of two or more different materials that possess unique characteristics and are fused together with sufficient energy in such a manner that the resultant material will have the best properties of both materials. These polymeric materials (biodegradable and other naturally bioactive polymers) are comprised of nanosized particles in a composition of other materials. A systematic search was carried out on Web of Science and SCOPUS using different keywords, and 485 records were found. After the screening and eligibility process, 88 journal articles were found to be eligible, and hence selected to be reviewed and analyzed. Biocompatible and biodegradable materials have emerged in the manufacture of therapeutic and pharmacologic devices, such as impermanent implantation and 3D scaffolds for tissue regeneration and biomedical applications. Substantial effort has been made in the usage of bio-based polymers for potential pharmacologic and biomedical purposes, including targeted deliveries and drug carriers for regulated drug release. These implementations necessitate unique physicochemical and pharmacokinetic, microbiological, metabolic, and degradation characteristics of the materials in order to provide prolific therapeutic treatments. As a result, a broadly diverse spectrum of natural or artificially synthesized polymers capable of enzymatic hydrolysis, hydrolyzing, or enzyme decomposition are being explored for biomedical purposes. This summary examines the contemporary status of biodegradable naturally and synthetically derived polymers for biomedical fields, such as tissue engineering, regenerative medicine, bioengineering, targeted drug discovery and delivery, implantation, and wound repair and healing. This review presents an insight into a number of the commonly used tissue engineering applications, including drug delivery carrier systems, demonstrated in the recent findings. Due to the inherent remarkable properties of biodegradable and bioactive polymers, such as their antimicrobial, antitumor, anti-inflammatory, and anticancer activities, certain materials have gained significant interest in recent years. These systems are also actively being researched to improve therapeutic activity and mitigate adverse consequences. In this article, we also present the main drug delivery systems reported in the literature and the main methods available to impregnate the polymeric scaffolds with drugs, their properties, and their respective benefits for tissue engineering.

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“… Loading versus displacement graphs from: ( a ) tensile test; ( b ) compression test; and ( c ) bending test. Reproduced with permission from [ 305 ]. …”

Section: Figurementioning

confidence: 99%

“…Motru et al [ 305 ] developed flax-reinforced PLA polymer matrix composites. During fabrication, flax fibers were varied by weight, in the values of 7.9, 13.6, and 17.6%.…”

Section: Introductionmentioning

confidence: 99%

Critical Review of Biodegradable and Bioactive Polymer Composites for Bone Tissue Engineering and Drug Delivery Applications

et al. 2021

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“…Para 7,9 y 17,6 % de fibra, el módulo de Young es de aproximadamente 26 GPa, y para 13,6 %, parece reducirse a 22 GPa, la resistencia a la compresión disminuye de 36 MPa (7,9 %) a 25 MPa (17,6 %). Por su parte, el compuesto mejora a 45 MPa al incorporar un 13,6 % de fibra, además, el material cuenta con una absorción de energía en un rango de 25 a 30 julios, propiedades que hacen posible pueda sustituir materiales tradicionales para la elaboración de partes automotrices, pues también tiene la ventaja de ser un material biodegradable (Motru;Adithyakrishna;Bharath;Guruprasad, 2020).…”

Section: Industria Automotriz Y Aeronáuticaunclassified

Revisión: materiales poliméricos biodegradables y su aplicación en diferentes sectores industriales

Jaén-Posada

Montes-Florez

2021

Inf. tec.

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La producción de materiales poliméricos a nivel mundial representa un consumo estimado en volumen de 359 millones de toneladas en el último año. Los polímeros, por su versatilidad de producción y aplicación en diversos campos de la industria, hoy en día están generando un problema ambiental por las grandes cantidades de residuos que se generan para su disposición final. Con el objetivo de encontrar aplicaciones amigables con el medio ambiente, se han venido desarrollando diferentes tipos de materiales como son los biopolímeros, que se pueden utilizar para fabricar materiales compuestos de matriz polimérica con algún tipo de carga de origen orgánico como las fibras naturales, para elaborar productos para el sector alimenticio, de construcción y automotriz, entre otros. Los polímeros biodegradables se han convertido en una buena opción para ser empleados como material sustituto que puedan mitigar en cierta proporción el impacto ambiental generado por los polímeros convencionales. El presente trabajo reporta una revisión bibliográfica que muestra la tendencia de aplicación de los biopolímeros de matriz polimérica con fibra natural. Para este propósito, se generó una búsqueda de información relevante sobre las tendencias de estos materiales, como también de sus diferentes aplicaciones en diversos sectores de la industria a nivel mundial, que permitan dar un conocimiento claro de las nuevas tendencias de la investigación para futuros desarrollos e investigaciones.

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“…Among printing materials, polylactic acid (PLA) is one of the most popular polyester used in desktop 3D printing due to its low cost, appropriate tensile strength, and biodegradability [1,2]. It has been applied not only in packaging and food service but in the agricultural [3], medical [4], and automotive sectors as well [5]. Due to the wide range of applications, especially in gear pairs, several articles have begun to focus on 3D-printed machine elements.…”

Section: Introductionmentioning

confidence: 99%

Numerical Wear Analysis of a PLA-Made Spur Gear Pair as a Function of Friction Coefficient and Temperature

Fekete

2021

Coatings

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Polylactic acid (PLA)-made machine elements exhibit easy machining, biodegradability, and excellent mechanical properties. However, enhancing their wear resistance is still a crucial engineering point, which may be achieved by altering (lowering) their coefficient of friction (CoF). Therefore, the first aim of this paper is to analyze how wear is affected by the alteration of CoF. The second aim is connected to the fact that PLA is sensitive to heat, which also limits its applicability. Accordingly, the next goal is to explore the effect of temperature on wear propagation. This study answers these questions by means of multibody dynamics simulations of a PLA-made spur gear pair. Simulations were carried out under constant torque, while the CoF and the temperature were varied in a normal operation domain (CoF: 0.1–0.05, T = 20–30 °C). The results showed that the wear volume gradually began to decline at approximately 0.085 CoF, whilst convergence to steady-state wear could be observed at 0.05 CoF. In conclusion, alteration of the CoF can lower wear by 35%, in this specific domain, while even a 5 °C rise in temperature causes 40% wear progression. The feasibility of the numerical procedure was validated by comparing numerically and experimentally obtained wear–torque results.

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Development and Evaluation of Mechanical Properties of Biodegradable PLA/Flax Fiber Green Composite Laminates

Cited by 40 publications

References 8 publications

Critical Review of Biodegradable and Bioactive Polymer Composites for Bone Tissue Engineering and Drug Delivery Applications

Critical Review of Biodegradable and Bioactive Polymer Composites for Bone Tissue Engineering and Drug Delivery Applications

Revisión: materiales poliméricos biodegradables y su aplicación en diferentes sectores industriales

Numerical Wear Analysis of a PLA-Made Spur Gear Pair as a Function of Friction Coefficient and Temperature

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