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Found 4 essays matching the above criteria.

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

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

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

    Abstract : 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. READ MORE

  3. 2. Enhancement of Phenol Formaldehyde Adhesive with Crystalline Nano Cellulose

    University essay from Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Author : Johan Ekstrand; [2019]
    Keywords : Nano Cellulose; Fibrillated cellulose; Wood Adhesive; Shear strength; Adhesive Enhancement; Formaldehyde adhesive; Phenol Formaldehyde;

    Abstract : Abstract The wood industries to this day use almost exclusively petroleum derived adhesives that are based mainly on the reaction of formaldehyde with urea, melamine or phenol. These adhesives have low cost and good adjustable properties which makes it hard for bio-based alternatives to compete. READ MORE

  4. 3. 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

  5. 4. AFM study of Micro Fibrllated Cellulose, (MFC) in controlled atmosphere

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Author : Jonatan Andersson; [2016]
    Keywords : AFM Micro Fibrillated Cellulose MFC Controlled Atmosphere Humidity Swelling;

    Abstract : In this thesis, Atomic Force Microscopy (AFM) is used to characterize Micro Fibrillated Cellulose (MFC) produced by two different methods according to their size and shape. For one of these MFC-types, their interaction with the humidity in the atmosphere is investigated and their swelling is calculated. READ MORE