2020
DOI: 10.3390/polym12122939 View full text |Buy / Rent full text
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Abstract: In this article, polylactic acid-based composites reinforced with 5% of polyethylene, iron, and magnesium powders were prepared by extrusion and compressed under the pressure of about 10 MPa and characterized. These composites were mechanically, thermally, and morphologically evaluated. It was found, compared to the pure polylactic acid (PLA), an improvement in tensile strength (both σ and YS0.2) was obtained for the composite with the iron powder addition, while the magnesium powder slightly improved the duct… Show more

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“…La relación de la cantidad de PLA en el material, la presencia de otros materiales y su arquitectura molecular, están directamente relacionadas con sus compatibilidad química y propiedades mecánicas (Oksiuta et al, 2020). En la Tabla 1 se muestran las propiedades mecánicas del PLA.…”
Section: Figura 1 Estructura Química Del Plaunclassified
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“…La relación de la cantidad de PLA en el material, la presencia de otros materiales y su arquitectura molecular, están directamente relacionadas con sus compatibilidad química y propiedades mecánicas (Oksiuta et al, 2020). En la Tabla 1 se muestran las propiedades mecánicas del PLA.…”
Section: Figura 1 Estructura Química Del Plaunclassified
“…Dentro de las principales características mecánicas asociadas a la evaluación del grado de inalterabilidad del PLA (o mezcla), para establecer una durabilidad y biocompatibilidad del producto final, están la determinación de pérdida de masa, grado de cristalinidad, energía termogravimétrica y de activación, dureza y tracción, resistencia a fractura, y tensión para deformación, entre otras (Oksiuta et al, 2020;Qiu et al, 2016).…”
Section: Ensayos De Propiedades Mecánicas De Plaunclassified
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“…In detail, the physical (i.e., mechanical and degradation) properties of polymers strongly depend on their molecular weight, crystallinity degree, physical aging time, test, and environmental conditions. For example, PLA presents relatively high mechanical properties (flexural strength up to 140 MPa, Young's modulus 5-10 GPa, total tensile elongation about 3%, Charpy impact fracture~2.5 kJ/m 2 ), with excellent optical properties, good processing ability (with low shrinkage not causing product deformation) and biodegradation time over the period of several months up to two years [103]. On the other hand, PCL is a biodegradable polymer with very high flexibility, a tensile strength between 4 and 785 MPa and a Young's modulus in the range 0.21-0.44 GPa, presenting a degradation time of 2-to-3 years [104].…”
Section: Tissue Engineering Strategiesmentioning
“…Mostly, the composites are prepared to utilize the hand layup technique to obtain a uniform surface level of the composites. Hybrid composites are prepared with constant content of (15 wt %) banana fiber and by varying groundnut shell ash to modify the strengths [ 13 ]. From the prepared composites, the author conducted the mechanical tests namely tensile, hardness, impact, and compression test [ 14 , 15 , 16 ].…”
Section: Introductionmentioning