Trocknung und Lagerung und von Monomeren in der Polymerproduktion
Die Qualität von Monomerpartikel ist von entscheidender Wichtigkeit für die finalen Eigenschaften vieler Polymerprodukte (z.B. Acrylglas, Lacke, etc.). Bei der Herstellung von Monomerpartikeln ist der Trocknungsschritt von hoher Wichtigkeit für mögliche Veränderungen der Partikel während der Lagerung, die in weiterer Folge das Produkt beeinflussen.
In Zusammenarbeit mit unserem Partner (einem großen Hersteller dieser Monomere) vergeben wir zwei Masterarbeiten für Verfahrenstechnik- bzw. CPE-Studierende. Ziel dieser Arbeiten ist eine tiefgreifendere Analyse der chemischen und physikalischen Veränderungen während der Trocknung bzw. der Lagerung eines granularen Monomers. Diese Analyse erfolgt großteils auf Basis von experimentellen Arbeiten, z.B. Partikelgrößenanalyse, MS, HPLC, oder einem neu zu entwickelnden Trocknungsexperiment. Weiters ist für den Teil „Trocknung“ die Weiterentwicklung eines Berechnungsprogrammes, sowie eine Auslegung durchzuführen.
Wir bieten:
Kontakt
Stefan Radl, radlnoSpam@tugraz.at, 0680 / 12 22 168
Heidrun Gruber-Wölfler, woelflernoSpam@tugraz.at, 0316 / 873 30406.
Möglicher Startzeitpunkt: 1. Jänner 2022
Background Polymers are used in the electrical industry to insulate devices. Especially in corrosive atmospheres the investigation of the degradation of these polymers and the protected devices is of vital importance to increase their longevity. One main influence is the diffusion of corrosive substances through the protective layer of a device. In recent years as computational power became cheaper, using molecular dynamics simulations to quantify transport properties of polymers became more commonly used.
In this thesis molecular dynamics (MD) simulations should be used to quantify the transport processes of different penetrator molecules in polymers. Investigations regarding the polymer’s chain-length, the degree of cross-linking, as well as the charge of the penetrator molecules under different environmental conditions should be conducted.
Tasks
Requirements
Work on the thesis is paid (6 months), and we offer office space, computers, simulation software and expertise, as well as integration to a highly-relevant research project
Contact Dr. Stefan Radl (radlnoSpam@tugraz.at; 0680 12 22 168) Dipl.-Ing. Philipp Mayr, BSc. (philipp.mayrnoSpam@tugraz.at)
Background
The Institute of Process and Particle Engineering is a world leader in the development of pharmaceutical products and processes.
In this context, we are offering a paid master thesis where the student is employed at an external company.
The goal of the master thesis is to create the basis for product development, focusing on a novel drug delivery system where the medicine is contained in a flavored gel, either as solution, emulsion or suspension. Drug delivery occurs via breaking a seal of a snap-package and sucking out the flavored gel. Target patient populations includes:
What we offer:
Start: Spring 2021
Contact: Univ.-Prof. Dr. Johannes Khinast, khinastnoSpam@tugraz.at
The Institute of Process and Particle Engineering is a world leader in the development of simulation tools for industrial-scale bioprocessing units, funded by the Spin-Off Fellowship Program of the FFG. For example, our current code can model processes in large-scale bioreactors, up to 200m3 . We are therefore offering a student job with the possibility to do a master thesis with the goal of creating a comparison algorithm for bioreactors. The objective is to find the influencing factors that determine the productivity difference between reactors. This should be done by comparing reactors of different scales and for reactors at the same scale but different geometry and should aid scale up or process transfer processes in the industry.
Start: Fall 2020
Contact Dr. Christian Witz 0316 873 30416 christian.witznoSpam@tugraz.at
For this construction thesis we are looking for a student to design a water bath made of stainless steel for continuous cooling crystallization in a tubular reactor (plug flow crystallizer).
Using such a tubular crystallizer the continuous cooling crystallization process should be carried out in two water baths of different temperature. Each water bath has separate glass inserts which enable the visual observation of the crystallization process within the tubes via a high speed camera. To achieve high resolution images a backlight source e.g. a LED panel in addition to the camera is necessary. Due to the reflection of the water inside the bath the distance between the backlight and the camera should be as short as possible. To keep the tube cycles uniformly immersed and to guide them special tube mountings are also required.
What we offer
Contact
Dipl.-Ing. Alexander Meister, BSc Inffeldgasse 13 / III, 8010 Graz alexander.meisternoSpam@tugraz.at
Institute of Process and Particle Engineering Inffeldgasse 13 8010 Graz