Essays about: "oxygen barrier"

Showing result 16 - 20 of 35 essays containing the words oxygen barrier.

1. 16. Metalization of Micro Fibrillated Cellulose (MFC) films

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

   Author : Yasser Kadhim; [2017]
   Keywords : Micro Fibrillated Cellulose MFC films; MFC Metalization; MFC packaging; PVD thin film coating;

   Abstract : In this thesis, two MFC based films Carboxymethylated-Microfibrillated Cellulose (MFC) and Enzymatic-MFC were characterized and metalized in order to improve the barrier properties at high relative humidity. Several methods were used for the characterization process, which were Atomic Force Microscopy (AFM), Contact Angle (CA), Energy Dispersive Spectra (EDS), Light Microscopy (LM), Scanning Electron Microscopy (SEM), and Oxygen Transmission Rate (OTR). READ MORE

3. 17. Performance of cavity barriers exposed to fire : A model scale test

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Sara Gustafsson; Stina Jonsson; [2017]
   Keywords : Cavity barriers; Model scale test; timber; constructions; fire spread; glowing combustion; smouldering; cavities;

   Abstract : To build multi story buildings out of timber is of a common interest in the building sector. Timber as a building material has many profits, such as the low cost, the availability and the ability to recycle it, the low carbon footprint and the workability. READ MORE

4. 18. Investigation of high-barrier materials development for long shelf-life dairy-based products with enhanced properties

   University essay from Lunds universitet/Förpackningslogistik

   Author : Anna Kim; [2016]
   Keywords : barrier materials; OTR; shelf-life; flexible packaging; rigid packaging; Technology and Engineering;

   Abstract : This thesis has been pursuing an objective to investigate the recent developments in the field of high oxygen barrier materials for the dairy based medical nutrition portfolio. The main goal of this research was to identify the materials and/or approaches that would allow the decrease of oxygen ingress with resulting shelf-life extension. READ MORE

5. 19. CO induced faceting of Rh(553)

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

   Author : Ka Sin Lai; [2015]
   Keywords : Science General;

   Abstract : We have investigated the CO induced faceting of a Rh(553) surface using Scanning Tunneling Microscope (STM), Low Energy Electron Diffraction (LEED) and Auger Electron Spectroscopy (AES). The sample was exposed to a CO pressure of 1x10^-3 mbar, at different sample temperatures. READ MORE

6. 20. Production of Dialdehyde Cellulose and Periodate Regeneration: Towards feasible oxidation processes

   University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper

   Author : Elisabeth Höglund; [2015]
   Keywords : Dialdehyde cellulose; periodate regeneration;

   Abstract : Cellulose is an attractive raw material that has lately become more interesting thanks to its degradability and renewability and the environmental awareness of our society. With the intention to find new material properties and applications, studies on cellulose derivatization have increased. READ MORE