Essays about: "oxygen barrier"

Showing result 21 - 25 of 35 essays containing the words oxygen barrier.

  1. 21. Starch and Hemicellulose as Barrier Materials in Food Packaging : - A study of the materials permeability and structure with polyvinyl alcohol as a reference

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Elin Andersson; [2015]
    Keywords : ;

    Abstract : To prevent permeation through food packages, the packaging are often combined with barrier coatings. Many of these coatings are petroleum based and wished to be replaced with renewable materials. READ MORE

  3. 22. Graphene-based Coatings for Heat Exchangers

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Marie Långberg; [2015]
    Keywords : Polyaniline; graphene; materials chemistry; materialkemi; Chemistry;

    Abstract : This master thesis is a part of a larger interwork between SP, KTH and Alfa Laval funded by the SIO graphene programme, which end goal is to formulate an anti-corrosion coating based on graphene or graphene related materials (GRMs). The investigation is partly based on an article “Novel anticorrosion coatings prepared from polyaniline/graphene composites” from 2012 by Chang et al in combination of knowledge acquired during a previous EU project, www. READ MORE

  4. 23. Carboxylated Cellulose Nanocrystals Extraction from Kraft Pulp Using Ammonium Persulfate as Low Cost Source & Sustainable Method for High Quality Flexible Packaging Bio-coating

    University essay from Lunds universitet/Förpackningslogistik

    Author : Gerald Perry Estavillo Marin; [2015]
    Keywords : affordable CNC extraction; high quality CNC; sustainable packaging; FT-IR; TEM; XRD; contact angle; transparency; haze; optical properties; food packaging; bio-packaging; bio-coating; plastics; PET film; polyethylene terephthalate; Kraft CNC; Kraft pulp; cotton CNC; oxygen barrier; nanocellulose crystals; ammonium persulfate; CNCs; cellulose nanocrystals; Chemistry;

    Abstract : One of the leading challenges presented in 21st century for packaging industry is to address the growing environmental problems related to non-renewable flexible packaging. This leads to new growing interest in bio-based materials, among them cellulose nanocrystals (CNCs), which have already shown good performance in improving anti-fog and oxygen & water vapor barrier properties when applied to flexible film. READ MORE

  5. 24. Influence of gas sparging on membrane performance

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Sandra Farran-Lee; [2015]
    Keywords : chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : A new oxygen barrier film that is made of arabinoxylan has been developed by the company Xylophane. Arabinoxylan is available among other things in wheat bran. But a problem with the method of extracting the arabinoxylan is that after an alkali extraction is ultrafiltration used to remove impurities and the flux during this is quite low. READ MORE

  6. 25. Light barrier properties of paperboard, packages and plastic caps in packages

    University essay from Lunds universitet/Förpackningslogistik

    Author : Cam-Minh Tu; André Apt; [2013]
    Keywords : Technology and Engineering;

    Abstract : Examensarbetet inleddes den 15:e januari 2013 på Tetra Pak packaging solutions AB i Lund. Mjölk är en produkt, som är särskilt ljuskänslig. För att skydda mjölk från ljus, kan dess förpackning innehålla aluminiumfolie. Det laminerade aluminiumfoliet ger en utmärkt ljusbarriär, men är dyrt och är inte ett förnybart material. READ MORE