Search for dissertations about: "thesis on poly lactic acid"

Showing result 1 - 5 of 20 swedish dissertations containing the words thesis on poly lactic acid.

  1. 1. Plasticized Poly (lactic acid) Films - Preparation and Properties

    Author : Nadia Ljungberg; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phase separation; aging; thermal properties; dynamic mechanical properties; processing; film preparation; oligomer synthesis; poly lactic acid ; plasticizers; migration; cold crystallization; Polymer technology; biopolymers; Polymerteknik;

    Abstract : The development of biodegradable polymers from renewable resources is of importance in order to prevent the depletion of fossil fuels and the increasing emissions of carbon dioxide to the atmosphere caused by the commodity plastics of today. However, to be able to replace these non-environmentally friendly materials, production costs of biodegradable polymers have to be decreased and their physical properties need to be enhanced. READ MORE

  2. 2. Graphene Oxide Technology to Advance the Performance of Poly(lactic acid) Materials

    Author : Huan Xu; Minna Hakkarainen; Jean-Marie Raquez; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Poly lactic acid ; Graphene Oxide; Stereocomplex; Nucleation Mechanism; Crystalline Morphology; Filler Structure; Mechanical Properties; Gas Barrier; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : In the past two decades, a burgeoning biorefinery concept has grown in concert with the materials science, contributing to the rise of biobased materials that respect environment and are versatile for various applications. An excellent example is poly(lactic acid) (PLA) that exhibits high strength and desirable degradability. READ MORE

  3. 3. Properties of poly(lactic acid) in presence of cellulose and chitin nanocrystals

    Author : Shikha Singh; Kristiina Oksman; Maria Lluisa Maspoch; Alfonso Jiménez; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; poly lactic acid ; chitin nanocrystals; nanocellulose; crystallization; orientation; nanocomposites; mechanical properties-other properties; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : Plastic based materials are widely used for industrial and domestic packaging application. However, disposal of such petroleum-based materials e.g. polyethylene (PE), polypropylene (PP), and polyethyleneterephthalate (PET) has become a huge threat to the environment. READ MORE

  4. 4. Study on multifunctional smart drug delivery systems

    Author : Yunsuk Jo; KTH; []
    Keywords : Drug delivery systems; Poly lactic acid ; Poly N-isopropylacrylamide ; Controlled-release; Stimuli-sensitive polymer; Mathematical modeling; Self-assembly; Au nanoparticle; Shell-in-shell structure;

    Abstract : .... READ MORE

  5. 5. Cellulose-based Nanocomposites – The Relationship between Structure and Properties

    Author : Shiyu Geng; Kristiina Oksman; Laurent Matuana; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; Nanocellulose; Nanocomposite; Dispersion; Poly vinyl acetate ; Poly lactic acid ; Alignment; Mechanical characteristics; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : Nanocellulose materials extracted from various types of biomass have recently attracted significant attention. Due to their remarkable mechanical properties, large surface area and biodegradability, they can be promising reinforcements in nanocomposites. READ MORE