Sökning: "cellulosananofibriller CNF"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden cellulosananofibriller CNF.

  1. 1. Physics-Informed Neural Networks and Machine Learning Algorithms for Sustainability Advancements in Power Systems Components

    Författare :Federica Bragone; Stefano Markidis; Kateryna Morozovska; Tor Laneryd; Michele Luvisotto; Matthias Ehrhardt; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics-Informed Neural Networks; Machine Learning; Data-Driven Methods; Circular Economy; Power Systems Components; Sustainability; Cellulose Nanofibrils; Fysikinformerade Neurala Nätverk; Maskininlärning; Datadrivna Metoder; Cirkulär Ekonomi; Kraftsystemets Komponenter; Hållbarhet; Cellulosananofibriller; Datalogi; Computer Science;

    Sammanfattning : A power system consists of several critical components necessary for providing electricity from the producers to the consumers. Monitoring the lifetime of power system components becomes vital since they are subjected to electrical currents and high temperatures, which affect their ageing. LÄS MER

  3. 2. Corrosion protection and nanomechanical properties of waterborne acrylate-based coating with and without nanocellulose on carbon steel

    Författare :Yunjuan He; Per M. Claesson; Orlando Rojas; KTH; []
    Nyckelord :Hydroxyacrylate-melamine copolymer; cellulose nanocrystals CNC ; cellulose nanofibrils CNF ; Electrochemical impedance spectroscopy EIS ; atomic force microscopy AFM ; corrosion protection performance; water uptake; nanomechanical and nano-wear properties; coating; nanocomposite.; Hydroxyakrylat-melamin-sampolymer; cellulosananokristaller CNC ; cellulosananofibriller CNF ; Elektrokemisk impedansspektroskopi EIS ; atomkraftsmikroskopi AFM ; korrosionsskyddsprestanda; vattenupptag; nanomekaniska egenskaper och nano-slitage; coating; nanokomposit.; Kemi; Chemistry;

    Sammanfattning : Corrosion protection is commonly achieved by applying a thin polymer coating on metal surfaces. In this doctoral thesis, a waterborne hydroxyacrylate-melamine copolymer coating was used for this purpose. The first step was to find the optimal curing conditions. LÄS MER

  4. 3. Towards compatibilization of cellulose nanofibrils in polymer matrices : Polymer design for mediating the nanofibril–matrix interface

    Författare :Rosella Telaretti Leggieri; Eva Malmström; Mats Johansson; Catarina de Carvalho Esteves; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cellulose nanofibril CNF ; copolymer; nanocomposite; coating; reinforcement; interface; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Magnifying the nanostructure of wood reveals the features of an extraordinary nanocomposite material. In this nanocomposite, long fibrils of semicrystalline cellulose, with a cross-section in the nanometer range and length up to several micrometers, are embedded in an amorphous matrix made of other polymeric components. LÄS MER

  5. 4. Cationic Dendritic Polymers and Their Hybridization with Cellulose Nanofibrils

    Författare :Faridah Namata; Michael Malkoch; Lars Wågberg; Francisco Javier de la Mata de la Mata; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dendritic polymers; antibacterial materials; carboxylated cellulose nanofibrils; hybrid hydrogels; bis-MPA polyester dendrimers; dendritic linear dendritic; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Antimicrobial resistance (AMR) is one of the major global threats to thehealth of humans, animals, plants and ecosystems. AMR arises whenbacteria, viruses, fungi, and parasites undergo changes over time; makingmedicines such as antibiotics, antivirals, antifungals and antiparasiticineffective at treating infections. LÄS MER

  7. 5. Utilizing Biopolymers in 3D Tumor Modeling and Tumor Diagnosis

    Författare :Negar Abbasi Aval; Torbjörn Pettersson; Aman Russom; Maria Tenje; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 3D tumor modeling; Spheroids; Cellulose Nano Fibrils; Layer by Layer; Extracellular matrix; Circulating Tumor Capturing; Pancreatic ductal adenocarcinoma PDAC ; 3D-tumörmodellering; Sfärer; Cellulosa; Lager-på-lager; Extracellulärmatris; Infångning av cirkulerande tumörceller; Mänskliga Duktala Adenocarcinom-Hepatocyter; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Cancer represents a significant global public health challenge and ranks as the second mostcommon cause of death in the United States. The onset of cancer entails an initial phasewhere cells lose their polarity and disconnect from the normal basement membrane, allowingthem to form distinct three-dimensional (3D) configurations that interact with adjacent cellsand the surrounding microenvironment. LÄS MER