Search for dissertations about: "Nanocelluloses"

Showing result 1 - 5 of 7 swedish dissertations containing the word Nanocelluloses.

  1. 1. Cellulose–Assisted Dispersion of Carbon Nanotubes : From Colloids to Composites

    University dissertation from KTH Royal Institute of Technology

    Author : Alireza Hajian; KTH.; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nanocelluloses; Carbon nanotubes; Composites; Colloids; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : It is a challenge to disperse nanoparticles to obtain a nanostructured composite. This thesis aims at providing a new route to fabricate carbon nanotube (CNT) composites and suggests mechanisms for nanocellulose–CNT interactions. This route is based on unmodified CNT dispersed in water with the help of nanocellulose. READ MORE

  2. 2. Nanocelluloses - surface modification and use in functional materials

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Michaela Salajková; KTH.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nanocellulose; surfactant; surface modification; papermaking process; quaternary ammonium salt;

    Abstract : Cellulose nanocomposites offer interesting potential in terms of improved properties and new functionalities compared with microcomposites. Preparation from colloidal suspensions is promising, since high reinforcement content is possible and a wide range of constituents can be used. READ MORE

  3. 3. Surface Modification of Nanocellulose towards Composite Applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Assya Boujemaoui; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nanocellulose; surface modification; functionalization; composites; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Nanocelluloses have attracted great interest during recent decades owing to their renewability, abundancy and remarkable physical and mechanical properties. The aim of this work was to investigate new strategies for surface modification and functionalization of nanocelluloses and their subsequent incorporation in polymer-host matrices. READ MORE

  4. 4. Nanopolysaccharides for adsorption of heavy metal ions from water

    University dissertation from Luleå tekniska universitet

    Author : Peng Liu; Luleå tekniska universitet.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : With population expansion and industrialization, heavy metal has become one of the biggest and most toxic water pollutants, which is a serious problem for human society today. The aim of this work is to explore the potential of nanopolysaccharides including nanocellulose and nanochitin to remove metal ions from contaminated water. READ MORE

  5. 5. Mechanical Pulp-Based Nanocellulose Processing and applications relating to paper and paperboard, composite films, and foams

    University dissertation from Sundsvall : Mid Sweden University

    Author : Sinke Henshaw Osong; Mittuniversitetet.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mechanical pulp; thermo-mechanical pulp; chemi-thermomechanical pulp; fractionation; fines; homogenisation; nanocellulose; nano-ligno-cellulose; microfibrillated cellulose; nanofibrillated cellulose; paper; strength properties; crill; TEMPO; nanographite NG ; composite films;

    Abstract : This thesis deals with processing of nanocellulose originating from pulps, with focus on mechanical pulp fibres and fines fractions. The nanocellulose materials produced within this research project were tested for different purposes ranging from strength additives in paper and paperboard products, via composite films to foam materials. READ MORE