Sökning: "clay nanoparticles"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden clay nanoparticles.

1. 1. Polymer Nanocomposites in Thin Film Applications

   Författare :Linda Fogelström; Anders Hult; José M. Kenny; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nanocomposites; hyperbranched polymers; montmorillonite; clay nanoparticles; exfoliated; coatings; crosslinking; TEM; XRD; mechanical properties; thermal properties; cellulose nanofibers; Atom Transfer Radical Polymerization; Ring-Opening Polymerization; poly ε-caprolactone ; surface modification; grafting; interfacial adhesion; Polymer chemistry; Polymerkemi;

   Sammanfattning : The introduction of a nanoscopic reinforcing phase to a polymer matrix offers great possibilities of obtaining improved properties, enabling applications outside the boundaries of traditional composites. The majority of the work in this thesis has been devoted to polymer/clay nanocomposites in coating applications, using the hydroxyl-functional hyperbranched polyester Boltorn® as matrix and montmorillonite clay as nanofiller. LÄS MER

3. 2. Exploring Biopolymer-Clay Nanocomposite Materials by Molecular Modelling

   Författare :Yan Wang; Hans Ågren; Vincenzo Carravetta; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bio-nanocomposite; interfacial mechanism; binding affinity; dimensional stability; counterions; hydration; stress-strain behavior; xyloglucan; chitosan; chitin; molecular dynamics; montmorillonite.; 生物复合材料，界面机理，分子间亲和力，材料尺寸稳定性，抗衡离子，水合作用，应力应变表现， 木葡聚糖，壳聚糖，甲壳素，分子动力学模拟，蒙脱土; bio-nanokompositer; gränsytor; affinitet; dimensionsstabilitet; jonhydrering; spännings-töjningsbeteende; xyloglukan; kitosan; kitin; molekyldynamisk; montmorillonit.; Kemi; Chemistry; Fiber- och polymervetenskap; Fibre and Polymer Science; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : In this thesis, bio-nanocomposites made from two alternative biopolymers and montmorillonite (Mnt) clay have been investigated by molecular modelling. These biopolymers are xyloglucan (XG) and chitosan (CHS), both of which are abundant, renewable, and cost-effective. LÄS MER

4. 3. Biofilm adhesion on silicone materials

   Författare :Sevil Atarijabarzadeh; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Silicone composite high voltage insulators are sometimes contaminated by microorganisms in outdoor applications, which results in the insulator becoming conductive and thereafter failure of the insulators. In this work, it has been tried to develop silicone materials with antimicrobial properties. LÄS MER

5. 4. Characterization of some natural and synthetic materials with silicate structures

   Författare :Edwin Escalera; Farid Akhtar; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Konstruktionsmaterial; Engineering Materials; Materialteknik; Engineering Materials;

   Sammanfattning : The present thesis deals with characterization of silicate structures with a determined morphology and structure such as ordered mesoporous silica and layered silicates. Mesoporous silica groups are amorphous solids exhibiting highly ordered pore structures with narrow pore size distributions and large surface areas. LÄS MER

7. 5. Wood Nanotechnologies for Transparency, Fire Retardancy and Liquid Separation

   Författare :Qiliang Fu; Lars Berglund; Hiroyuki Yano; KTH; []
   Nyckelord :Teknisk materialvetenskap; Materials Science and Engineering; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : In this thesis, wood nanotechnologies for transparent, fire-retardant and hydrophobic/lipophilic wood have been developed. There are two main parts; wood template preparation/processing concepts and materials design using these templates.In the wood template processing part, highly porous nanostructured wood templates are prepared. LÄS MER