Starchy extruded foods are considered as solid foam and their texture is defined by their structure and the mechanical properties of the cell-wall, or constitutive material. This material is envisioned as dense composite of starch and proteins. In addition to composition, the mechanical properties of these composites depend on their morphology, cre...
Published in E3S Web of Conferences
This project investigates the feasibility and properties of 3D printed concrete using Portland Pozzolana Cement (PPC). The increasing demand for construction materials, particularly ordinary Portland cement (OPC), has led to a surge in its usage. Consequently, Portland Pozzolana Cement (PPC) has gained popularity as an alternative due to its advant...
Cochlear implant surgery is the standard of care for severe sensorineural hearing loss. Infection followed by implant extrusion is an infrequent complication of this surgery. The ideal treatment is explantation of the implant. However, implant removal and reimplantation is a challenging surgery and may have poor speech reception outcomes. The cost ...
This work is focused on the effect of the content and length of cellulose fibres on PLA foams produced by extrusion-foaming process assisted by sc-CO2. The produced foamed samples were characterised by water pycnometry, modulated differential scanning calorimetry, and scanning electron microscopy. Increasing the length and the content of cellulose ...
Microalgae are emerging as a promising feedstock for bioplastics, with Chlorella vulgaris yielding significant amounts of starch. This polysaccharide is convertible into thermoplastic starch (TPS), a biodegradable plastic of industrial relevance. In this study, we developed a pilot-scale protocol for extracting and purifying starch from 430 g (dry ...
High-moisture extrusion (HME) is widely used to produce meat analogues. During HME the plant-based materials experience thermal and mechanical stresses. It is complicated to separate their effects on the final products because these effects are interrelated. In this study we hypothesize that the intensity of the thermal treatment can explain a larg...
This thesis seeks to establish whether recycled E-waste rABS from Stena Recycling AB in Halmstad, Sweden, can be effectively utilized in additive manufacturing processes and if it can be applied similarly to virgin ABS. Results show that it is possible to apply the rABS granules on 3D-printing but with mechanical property losses and cosmetic losses...
The electrical conductivity of thermoplastic composites made of poly(3,4-ethylenedioxythiophene) (PEDOT) particles and poly(ethylene oxide) (PEO) matrices is here investigated, in particular using a manufacturing process based on twin-screw extrusion. PEDOT particles without PSS were first synthesized by oxidative polymerization in an aqueous mediu...
Published in International journal of biological macromolecules
Microcrystalline cellulose (MCC-30 wt%) was extruded with a blend of polybutylene succinate (PBS) and cellulose acetate (CADS=2.5-20 wt%) to produce two grades of binary (PBS/CA, PBS/MCC) and ternary (PBS/CA/MCC) specimens by injection into a mold previously thermostated at 22 °C and 78 °C. The structure-property relationships of neat PBS (n-PBS) a...
[ES] El objetivo de este proyecto es realizar la automatización del proceso de estiraje de perfiles de aluminio utilizados en la línea de producción de extrusión de aluminio con un nuevo sistema automatizado para la aplicación del proceso. En la actualidad, este proceso está parcialmente automatizado y requiere un alto grado de mantenimiento, lo qu...
