Reutilización y modificación de bolsas biodegradables de PLA para aplicaciones avanzadas en manufactura.
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción
Abstract
La creciente demanda de materiales sostenibles como alternativa a los convencionales ha impulsado la necesidad de prácticas de fabricación responsables que equilibren el uso eficiente de recursos limitados, reduzcan el impacto ambiental y mantengan la viabilidad económica, promoviendo al mismo tiempo el bienestar humano. En este contexto, el uso de PLA reciclado en la impresión 3D surge como una solución prometedora para disminuir los costos y la huella ambiental asociados al uso de PLA virgen. Sin embargo, uno de los principales desafíos radica en la baja resistencia mecánica de los componentes fabricados con PLA reciclado, lo que subraya la necesidad de comprender y optimizar sus propiedades mecánicas y su potencial de sostenibilidad.
Este estudio evaluó el desempeño del PLA reciclado en la impresión 3D mediante la creación de mezclas con PLA virgen y la incorporación de glicerina como plastificante. Se analizaron propiedades mecánicas, calidad del filamento y rendimiento en impresión 3D. Los resultados demuestran que el PLA reciclado puede ser una alternativa viable al PLA virgen si sus propiedades se modifican y controlan adecuadamente. Además, estrategias como la combinación con materiales vírgenes, la optimización de parámetros de impresión y el uso de aditivos han mostrado ser efectivas para mejorar el comportamiento del PLA reciclado. Los estudios demuestran una disminución de propiedades de hasta el 40%, por lo que la mezcla de PLA reciclado y virgen se presentó dentro de las estadísticas aceptable, haciéndolo así un candidato importante para aplicaciones de impresión 3D. Aunque gran parte de las investigaciones se han centrado en los beneficios ambientales del PLA reciclado, esta investigación también aborda las dimensiones económicas y sociales de su implementación, incluyendo un análisis del mercado de producción de filamentos para impresión 3D. A pesar de los avances, se requiere más investigación para comprender plenamente los impactos ambientales, económicos y sociales del uso de PLA reciclado en la fabricación aditiva.
Los hallazgos de este estudio consiguieron demostrar una vez más, en conjunto con los estudios previos, que es necesaria la adición de material virgen para poder controlar la degradación de propiedades referida a materiales reciclados. Además, aporta una base sólida para que profesionales y académicos exploren el potencial de los materiales reciclados y los adapten a las necesidades específicas de sus aplicaciones, fomentando así la economía circular y la sostenibilidad en la industria de manufactura avanzada.
The increasing demand for sustainable materials as alternatives to conventional ones has driven the need for responsible manufacturing practices that balance the efficient use of limited resources, reduce environmental impact, and maintain economic viability while promoting human well-being. In this context, the use of recycled PLA in 3D printing emerges as a promising solution to lower costs and the environmental footprint associated with virgin PLA. However, one of the main challenges lies in the low mechanical strength of components made with recycled PLA, highlighting the need to understand and optimize its mechanical properties and sustainability potential. This study evaluated the performance of recycled PLA in 3D printing by creating blends with virgin PLA and incorporating glycerin as a plasticizer. Mechanical properties, filament quality, and 3D printing performance were analyzed. The results demonstrate that recycled PLA can be a viable alternative to virgin PLA if its properties are adequately modified and controlled. Furthermore, strategies such as combining with virgin materials, optimizing printing parameters, and using additives have proven effective in improving the performance of recycled PLA. Studies indicate a reduction in properties of up to 40%, making the blend of recycled and virgin PLA statistically acceptable and positioning it as a significant candidate for 3D printing applications. While much research has focused on the environmental benefits of recycled PLA, this study also addresses the economic and social dimensions of its implementation, including an analysis of the 3D printing filament production market. Despite the progress made, further research is needed to fully understand the environmental, economic, and social impacts of using recycled PLA in additive manufacturing. The findings of this study once again demonstrated, in conjunction with previous research, the necessity of adding virgin material to control the degradation of properties observed in recycled materials. Additionally, it provides a solid foundation for professionals and academics to explore the potential of recycled materials and adapt them to the specific needs of their applications, thereby fostering a circular economy and sustainability in the advanced manufacturing industry.
The increasing demand for sustainable materials as alternatives to conventional ones has driven the need for responsible manufacturing practices that balance the efficient use of limited resources, reduce environmental impact, and maintain economic viability while promoting human well-being. In this context, the use of recycled PLA in 3D printing emerges as a promising solution to lower costs and the environmental footprint associated with virgin PLA. However, one of the main challenges lies in the low mechanical strength of components made with recycled PLA, highlighting the need to understand and optimize its mechanical properties and sustainability potential. This study evaluated the performance of recycled PLA in 3D printing by creating blends with virgin PLA and incorporating glycerin as a plasticizer. Mechanical properties, filament quality, and 3D printing performance were analyzed. The results demonstrate that recycled PLA can be a viable alternative to virgin PLA if its properties are adequately modified and controlled. Furthermore, strategies such as combining with virgin materials, optimizing printing parameters, and using additives have proven effective in improving the performance of recycled PLA. Studies indicate a reduction in properties of up to 40%, making the blend of recycled and virgin PLA statistically acceptable and positioning it as a significant candidate for 3D printing applications. While much research has focused on the environmental benefits of recycled PLA, this study also addresses the economic and social dimensions of its implementation, including an analysis of the 3D printing filament production market. Despite the progress made, further research is needed to fully understand the environmental, economic, and social impacts of using recycled PLA in additive manufacturing. The findings of this study once again demonstrated, in conjunction with previous research, the necessity of adding virgin material to control the degradation of properties observed in recycled materials. Additionally, it provides a solid foundation for professionals and academics to explore the potential of recycled materials and adapt them to the specific needs of their applications, thereby fostering a circular economy and sustainability in the advanced manufacturing industry.
Description
Tesis presentada para optar al título de Ingeniera Civil Mecánico
Keywords
Biopolímeros, Resistencia de materiales, Aprovechamiento de desechos