Ingeniería Mecánica

Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/900

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Start date: 2023Subject: search.filters.subject.BIODEGRADABLE

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    Análisis de propiedades mecánicas a utensilios biodegradables
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2025-02) Araujo Pérez, Kevin Ricardo; Reinoso Manobanda, Marlon Joel; López Velástegui, Jorge Enrique
    This analysis aims to evaluate the mechanical properties of biodegradable spoons and forks to determine their viability as a sustainable alternative to conventional utensils. The development of prototypes from biodegradable materials allows competition in relation to plastic products due to their high contamination worldwide. Mechanical parameters were analyzed to determine whether the material used in the fork and spoon prototypes are efficient and comparable to plastic utensils. These mechanical parameters include bending, tensile, hardness and hydrophobicity, the first three parameters are performed on a universal mechanical testing machine, while the last one is performed in a conventional way with a design program, where the contact angle was measured. The materials used for the fork and spoon prototypes are a key element to achieve similar properties to plastic and biodegradable utensils already on the market, so corn starch and wheat starch were chosen. The analysis of these parameters was compared qualitatively and quantitatively. The results obtained showed that the utensils made from wheat starch have similar characteristics, being in some aspects superior to plastic and biodegradable utensils on the market. In addition, their hydrophobic behaviour was optimal, as the contact angle exceeded 90 degrees at most points, making them a viable alternative for the biodegradable utensil industry.
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    Diseño y construcción de una máquina para producir platos con material biodegradable para el Laboratorio de Materiales de la FICM-UTA
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2023-03) Guamanquispe Salas, Paúl Aníbal; Pardo Domínguez, Alex Fabricio; López Velástegui, Jorge Enrique
    From an environmental protection point of view, it makes sense to stop using singleuse containers made of polluting plastics and start using biodegradable and compostable products. Biodegradable and compostable tableware is much more environmentally friendly compared to disposable plastic tableware. A biodegradable material decomposes much faster than plastic, thus acting as a solution to a major issue today. Technical and technological know-how was provided to design and build a machine to produce dishes with biodegradable material. Research on biodegradable materials and how it can be transformed into a single-use container was carried out. Afterwards, the design was made considering several proposals of other examples and following design parameters, as well as standards related to the subject. The prototype was built and finally the tests were carried out with a proposed raw material, which is based on wheat bran. The biodegradable plates were manufactured by programming the prototype at a temperature in the matrices of 140 degrees Celsius, a pressure of 7 bars and within one minute a biodegradable plate of approximately 70 grams was obtained. Once the biodegradable plate was achieved, some tests were carried out to get an idea of its mechanical properties, especially its resistance to bending.