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1	The Management of CSR within the plastic industry : A study of plastic producing companies within the Gnosjö region in Sweden / Ledningen av CSR inom plastindustrin : En studie av plastproducerande företag inom Gnosjöregionen i Sverige Avramidou, Sara, Tellstedt, Maria January 2020 (has links) Background: The matter of Corporate Social Responsibility (CSR) has more and more become a topic of interest today. As the concept has gained attention, the emphasis on its different concepts has shifted from the focus lying on the social responsibilities, to being more about the environmental responsibilities and impact of companies. Although the attention put on CSR and the environment has increased, an increase in the amount of plastic waste is still seen in the world. In Sweden, corporations accounts for as much as 50% of the total amount of plastic waste every year. Purpose: The purpose of this thesis is to analyse the management of environmental Corporate Social Responsibility in plastic producing companies, specifically the management of CSR within the Gnosjö region in Sweden Method: This qualitative study involves multiple case studies primarily based on semi-structured interviews with managers of plastic producing companies in the Gnosjö region of Sweden. Findings: The study showed that plastic companies are challenged in several ways, like re-using their production waste, caring for their employees, switching to more sustainable energy sources, and adhering to sustainable standards. Thus, companies’ goals are required to satisfy environmental demands by positioning their CSR-work towards customers’ environmental needs. Conclusion: This thesis conclude that companies’ have different views on the meaning of CSR. It was found that sales and profit were the main motivators of adopting CSR practices, followed by some ethical aspects. Companies will continue to experience an increased demand for recycled plastics and that the importance of CSR will persistently grow. New knowledge demands the development of new materials and better strategies for recycling. Sustainable production Corporate Social Responsibility Plastic industry and Plastic waste management Business Administration Företagsekonomi
2	Technologické koncepty pro čištění oceánů / The ocean cleaning technology concepts Jedličková, Kateřina January 2020 (has links) The main aim of this master's thesis is the world ocean pollution by plastic waste. The introductory part of the thesis contains general information about the production of plastics and plastic waste, followed by data on ocean pollution by plastic waste including the estimated amount, pollution sources, and composition. Part of the thesis consists of the introduction of known concepts that are already actively looking for a solution to marine waste and of their mutual comparison. The following part deals with the plastic waste management, the possibilities of its treatment and utilization. The last area is the draft of an alternative system that is focused on an effective solution in accordance with environmental aspects. Within this draft, a material and economic balance is made.
3	Strategies and analytical procedures for a sustainable plastic waste management. An application to poly (ethylene terephthalate) and polylactide in the packaging sector. Badía Valiente, José David 11 November 2011 (has links) El propósito de esta tesis doctoral fue evaluar la influencia de los diferentes procesos de gestión de residuos, tales como la valorización material, energética y biológica de dos poliésteres clave de la industria del embalaje: el actual no-renovable poli (tereftalato de etileno) (PET) y el potencial candidato para sustituirlo en un futuro próximo, la polilactida (PLA) de base renovable. Se utilizaron diversas plantas piloto para simular las condiciones de la degradación sufrida por PET y PLA en el reciclado mecánico, la pirólisis, la combustión y el enterramiento en suelo. Los cambios fueron monitorizados por calorimetría diferencial de barrido (DSC), análisis dinámico-mecánico-térmico (DMTA), análisis termogravimétrico (TGA), espectrometría infrarroja con transformada de Fourier (FTIR), espectroscopia de correlación 2D-IR para el análisis de gases (EGA), espectrometría de masas MALDI-TOF, microscopía electrónica de barrido (SEM), índice de fluidez de masa fundida (MFR), ensayos de tracción e impacto Charpy y viscosimetría. Se han propuesto, desarrollado y aplicado diversas estrategias y procedimientos analíticos para establecer parámetros fiables para ser utilizados como indicadores de la degradación y por tanto controlar la influencia de cada proceso de valorización en la calidad del material. El comportamiento de PET y PLA reciclados mecánicamente se evaluó en base a sus propiedades químicas, microestructurales, mecánicas y térmicas. Se observó una pérdida general de prestaciones de PET y PLA reprocesado una vez y dos veces, respectivamente. Además, las propiedades de los materiales reciclados de PLA fueron mejores en términos relativos a los productos reciclados de PET. Las descomposiciones térmica y termo-oxidativa causadas por los procesos de pirolisis y combustión se evaluaron sobre la estabilidad térmica, gases emitidos y cinéticas de descomposición. Se destaca el uso de la combustión controlada para ambos polímeros, ya que se necesita menos energía para iniciar la descomposición, y la mezcla de gases que se desprenden es más homogénea. / Badía Valiente, JD. (2011). Strategies and analytical procedures for a sustainable plastic waste management. An application to poly (ethylene terephthalate) and polylactide in the packaging sector [Tesis doctoral]. Editorial Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/12890 / Palancia Plastic waste management Poly(ethylene terephthalate) (pet) Polylactide (pla) Material valorisation Energetic valorisation Biological valorisation Thermal analysis Physico-chemical assessment MAQUINAS Y MOTORES TERMICOS
4	Catalysts with Increased Surface Affinity for Chemical Recycling of PET Waste ABEDSOLTAN, HOSSEIN 07 September 2022 (has links) No description available. Chemical Engineering Chemistry Materials Science Mechanical Engineering Organic Chemistry Packaging Polymer Chemistry Polymers Sustainability Engineering Environmental Engineering Environmental Science Experiments Mathematics Plastics Plastic Wastes Plastic Recycling Techniques for Plastic Waste Management Chemical Recycling Hydrolysis Wetting Contact Angle Measurements Shrinking-core Model Surface Interfaces Catalysts Catalysis Ionic Liquids Synthesis Polymers Degradation Kinetic Studies Polyesters Packaging Water Bottles PET TPA Aryl Sulfonic Acids.

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