Sökning: "oxygen barrier"

Visar resultat 1 - 5 av 32 uppsatser innehållade orden oxygen barrier.

  1. 1. Experimentell studie av egenskaperna av protein-baserat plast

    M1-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Muhamed Mahmutovic; [2020]
    Nyckelord :biobased; protein; plastics; film; plasticiser; biobaserad; protein; plast; film; mjukgörare;

    Sammanfattning : På grund av ökad användning av plast har biobaserade polymerer som förpackningsmaterialfått stor uppmärksamhet de senaste åren på grund av miljöhänsyn. Flera proteinmaterial, t.ex.vetegluten har varit i fokus för betydande forskning kring ny biobaserad plast och resultatenär lovande. LÄS MER

  2. 2. HfO2 and ITO Resistive Random-Access Memory

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Mattias Åstrand; [2020]
    Nyckelord :RRAM; Resistive switching; HfO2; ITO; Physics and Astronomy;

    Sammanfattning : The purpose of this work is of evaluating the choice of HfO2 and ITO as the dielectric and the top electrode in high performance resistive random-access memory (RRAM), respectively. The study is twofold, as it quantifies performance according to standard figures of merit for this technology, as well as provides insight into the physics of current conduction for this material choice. LÄS MER

  3. 3. Decreasing barrier while maintaining shelf-life for highly sensitive products - A more recyclable and sustainable packaging for infant formula

    Master-uppsats, Lunds universitet/Förpackningslogistik

    Författare :Eva Weishaupt; [2020]
    Nyckelord :infant formula; packaging material; lipid oxidation; TBARS assay; shelf-life; Technology and Engineering;

    Sammanfattning : With increasing concerns about environmental impacts of the food that is consumed, so is also the concern about packaging materials. This also comprises the packaging that is currently used to pack infant formula (IF), very often containing aluminum as the barrier material. LÄS MER

  4. 4. A study of the photochromic effect in oxygen containing rare-earth metal hydride thin films and multilayer structures

    Master-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Sigurbjörn Már Aðalsteinsson; [2020]
    Nyckelord :;

    Sammanfattning : In this work, we have studied the photochromic response of several oxygen containing rare-earth hydride thin films (REHO, RE = Y, Nd, Gd, and Dy). Their chemical composition was characterized by an iterative multi-method approach based on ion beams, while the photochromic effect was measured by means of optical spectrometry. LÄS MER

  5. 5. Transparent paper: Evaluation of chemical modification routes to achieve self-fibrillating fibres

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Paulina Sandberg Birgersson; [2020]
    Nyckelord :Transparent paper; nanopaper; nanocellulose; chemical modification of cellulose; cellulose nanofibrils CNF ; Transparent papper; nanopaper; nanocellulosa; kemisk modifiering av cellulosa; cellulosa nanofibriller CNF ; nanopapper;

    Sammanfattning : Transparenta papper tillverkade av cellulosa nanofibriller (CNF), visar stor potential att kunna ersätta petroleumbaserade plaster inom många användningsområden, till exempel för mat- och varuförpackningar. CNF, även känt som nanocellulosa, kombinerar viktiga cellulosaegenskaper, med unika egenskaper hos nanomaterial. LÄS MER