Sökning: "carbon fibers"

Visar resultat 11 - 15 av 66 avhandlingar innehållade orden carbon fibers.

1. 11. Development of Constituents for Multi-functional Composites Reinforced with Cellulosic Fibers

   Författare :Zainab Al-Maqdasi; Roberts Joffe; Nazanin Emami; Liva Pupure; Yvonne Aitomäki; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose fibers; multi-functional; composites; nano-reinforcement; thermoplastics; development; Polymeric Composite Materials; Polymera kompositmaterial;

   Sammanfattning : Bio-basedcomposites are being increasingly used in applications where weight saving,and environmental friendliness is as important as structural performance. Obviously, bio-based materials have their limitations regarding durability and stability of the properties,but their potential in use for advanced applications can be expanded if they were functionalized and considered beyond their structural performance. LÄS MER

3. 12. Structural and Physical Effects of Carbon Nanofillers in Thermoplastic and Thermosetting Polymer Systems

   Författare :Sanjukta Chatterjee; Svensson Svante; Ritva Serimaa; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymer; Composite; Carbon nanotube; Graphene;

   Sammanfattning : Ever since the discovery of carbon nano materials like carbon nanotube (CNT) and graphene, this class of materials has gained significant attention due to their exotic properties. The principle idea of my present research project is to understand the novel improvements induced in polymer matrices with inclusion of the nanofillers. LÄS MER

4. 13. Carbon Nanotubes for Electronic Packaging: Growth, Novel Devices and 3D Networks

   Författare :Yifeng Fu; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-scale modeling; electrospinning; microfin; PDMS; chemical vapor deposition CVD ; Carbon nanotube CNT ; double-walled CNT DWNT ; CNT covalent bonding; CNT transfer; thermal management; packaging;

   Sammanfattning : Carbon nanotubes (CNTs) have shown great potential of application in electronics because of their attractive physical properties, such as high surface-to-volume ratio, high electron mobility, high Young’s modulus, high thermal conductivity, low thermal expansion coefficient, etc. However, many obstacles are yet to be removed to use CNTs as building blocks in electronic systems. LÄS MER

5. 14. Development of Cellulose-Based, Nanostructured, Conductive Paper for Biomolecular Extraction and Energy Storage Applications

   Författare :Aamir Razaq; Albert Mihranyan; Srømme Maria; Leif Nyholm; Johan Bobacka; Uppsala universitet; []
   Nyckelord :Polypyrrole; Cladophora cellulose; Conductive paper; Electrochemically controlled ion-exchange; DNA extraction; Paper-based energy storage devices; Chopped Carbon fibers; Teknisk fysik med inriktning mot nanoteknologi och funktionella material; Engineering Science with specialization in Nanotechnology and Functional Materials;

   Sammanfattning : Conductive paper materials consisting of conductive polymers and cellulose are promising for high-tech applications (energy storage and biosciences) due to outstanding aspects of environmental friendliness, mechanical flexibility, electrical conductivity and efficient electroactive behavior. Recently, a conductive composite paper material was developed by covering the individual nanofibers of cellulose from the green algae Cladophora with a polypyrrole (PPy) layer. LÄS MER

7. 15. Wood-derived lignin-based fibers as supercapacitor electrodes

   Författare :Azega Rajendra Babu Kalai Arasi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; lignin; green electrode materials; energy storage; supercapacitor;

   Sammanfattning : Today, in order to replace fossil energy sources with renewable energy sources such as solar and wind, reliable energy storage systems that can provide power regardless of the intermittent nature of the energy sources must be created. Especially with the future’s rising energy demands the development of such energy storage systems from green-collar materials with the least negative environmental impact is pressing. LÄS MER