Sökning: "fibre angle"

Visar resultat 26 - 30 av 59 avhandlingar innehållade orden fibre angle.

  1. 26. Betulin-modified cellulosic textile fibers with improved water repellency, hydrophobicity and antibacterial properties

    Författare :Tianxiao Huang; Monica Ek; Mats Johansson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Antibacterial; Betulin; Biorefinery; Cellulose; Grafting; Coating; Hydrophobicity; Textile; Water repellency; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Textiles made from natural sources, such as cotton and flax, have advantages over those made of synthetic fibers in terms of sustainability. Unlike major synthetic fibers that have a negative impact on the environment due to poor biodegradability, cotton cellulose is a renewable material. LÄS MER

  3. 27. Use of Cellulose for the Preparation of Capsules and Beads with Molecularly Tailored Properties

    Författare :Katarzyna Mystek; Lars Wågberg; Bernard Cathala; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; regenerated cellulose; partially modified cellulose; capsules; beads; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The continuously increasing global production of petroleum-based polymers to meet the ever growing demand for plastics for use in a multitude of industrial sectors (e.g. packaging and textiles) has an impact on human health, climate change and the entire ecosystem. LÄS MER

  4. 28. Polyethylene – metal oxide particle nanocomposites for future HVDC cable insulation : From interface tailoring to designed performance

    Författare :Dongming Liu; Ulf Gedde; Mikael Hedenqvist; Richard Olsson; Linda Schadler; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC; electrical insulation; core-shell nanoparticles; surface modification; silane chemistry; nanocomposites; polyethylene; adsorption; long-term stability; interface; particle dispersion; cavitation; conductivity; HVDC; elektrisk isolation; ytmodifiering; silankemi; nanokompositer; polyeten; adsorption; långtidsstabilitet; ytskikt; partikeldispergering; kavitation; ledningsförmåga; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Low-density polyethylene (LDPE) nanocomposites containing metal oxide nanoparticles are considered as promising candidates for insulating materials in future high-voltage direct-current (HVDC) cables. The significant improvement in dielectric properties compared with unfilled polymer is attributed to the large and active interface between the nanoparticles and the polymer. LÄS MER

  5. 29. Light Scattering Effects in Transparent Wood Biocomposites

    Författare :Hui Chen; Lars Berglund; Ilya Sychugov; Max Yan; Mikael Sjödahl; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transparent wood; cellulose; biocomposite; light transmission; anisotropic scattering; Rayleigh scattering; photon budget; photon diffusion theory; light-transparent wood interaction; Transparent trä; cellulosa; biokomposit; ljustransmission; anisotropisk spridning; Rayleigh-spridning; fotonbudget; fotondiffusionsteori; ljus-transparent trä interaktion; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Transparent wood (TW) shows interesting optical properties and offers a sustainable alternative to petroleum-based polymer glasses. The influence of the TW internal structure (e.g. LÄS MER

  7. 30. Hydrophobization of cellulose for bio-based materials

    Författare :Tianxiao Huang; Monica Ek; Merima Hasani; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betulin; Cellulose; Hydrophobicity; Mechanical properties; Polymer-matrix composites; Sustainability; Textile; Betulin; Cellulosa; Hydrofobicitet; Hållbarhet; Mekaniska egenskaper; Polymer-matriskompositer; Textil; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Cellulosa, vilken är huvudkomponenten i växter förekommer rikligt i naturen, både på land och i havet. Cellulosabaserade material har i tusentals år använts av människan för dagliga förnödenheter som bränsle och konstruktionsmaterial. Cellulosa isolerades först av den franske forskaren Anselme Payen 1838. LÄS MER