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Investigating a Creep Behavior of Polypropylene
(2021)
A viscoelasticity consisting viscos and elastic part, is a model defining mechanical property of both elastic and viscous behaviour of a material. A polymer or a material can have both a linear and non-linear viscoelastic ...
Manufacturing marks on polymer films
(2020)
Polymer film fabrication is the first step in the plastic bag manufacturing process. This is the step that leaves most of the marks on the finished product, and these marks are exploited as unique identifiers in forensic ...
Differential scanning calorimetry (DSC) of failed injection molded parts
(2020)
This thesis was written about the analysis of failed injection molded polymer parts by using differential scanning calorimetry (DSC). The thermal properties of the selected materials for the experiment were identified by ...
Outgassing rates of PEEK, Kapton® and Vespel® polymers
(2020)
In this study commissioned by CERN, the outgassing behaviour of PEEK, Kapton® and Vespel® polymers has been investigated for potential use in the vacuum systems of particle accelerators. Polymeric materials are in general ...
Biodegradable polymer synthesis from renewable sources
(2021)
In this study, pectin was extracted from fruit peels and used it for the synthesis of plant-based polymer. Pectin was extracted from fruit peels with acid boiling and washing with ethanol. The extracted pectin was used to ...
Design, Simulation and Analysis of Bottle Opener for Injection Moulding
(2022)
Injection moulding is one of the most common methods of making plastic goods for a wide range of applications, from everyday items to high-tech equipment. This thesis studies the possibilities of combining injection moulding ...
Harmful substances in Waste of Electrical and Electronic Equipment: with focus on analyzing methods, recycling aspects and legislation
(2022)
Den ökande användningen av elektriska och elektroniska produkter orsakar en massiv ökning av e avfall. Det behövs lösningar för att lägga tonvikten på korrekt avfallshantering och återvinning, vilket inkluderar tekniska ...
Synthesis of polymer from bio waste (potato peel) and its biodegradability testing
(2022)
This thesis is about making bioplastic films from potato starch and testing their biodegradability. Three types of films were made. Firstly, starch extracted from potato peel in the laboratory was used to make one set of ...
Failure analysis of injection moulded parts using DSC
(2020)
The main purpose of this thesis was to study the use of differential scanning calorimetry (DSC) in the failure analysis of injection moulded plastics parts and focus on correctly interpreting data produced by Pyris software. ...
The influence of infill direction on the low cycle fatigue performance of 3D printed PLA polymer.
(2022)
Purpose of the thesis is to find out the infill direction on the low cycle fatigue performance of 3D printed PLA polymer. ISO 527 1B selects as a standard to prepare the sample, which was designed by SolidWorks software. ...