Sökning: "biocomposite"

Visar resultat 11 - 15 av 26 avhandlingar innehållade ordet biocomposite.

1. 11. Biofoams and Biocomposites based on Wheat Gluten Proteins

   Författare :Qiong Wu; Mikael Hedenqvist; Richard Olsson; Hélène Angellier-Coussy; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wheat gluten; biofoam; biocomposite; freeze-drying; flame-retardant; silica; antimicrobial; bimodal; conductive biofoam; flax fiber; crack-resistance; Kemi; Chemistry;

   Sammanfattning : Novel uses of wheat gluten (WG) proteins, obtained e.g. as a coproduct from bio-ethanol production, are presented in this thesis. A flame-retardant foam was prepared via in-situ polymerization of hydrolyzed tetraethyl orthosilicate (TEOS) in a denatured WG matrix (Paper I). LÄS MER

3. 12. 3D printing of Green Water Purification Filters : Design towards Sustainable and Scalable Biocomposite Materials

   Författare :Natalia Fijoł; Aji P. Mathew; Lennart Bergström; Alexander Bismarck; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 3D printing; water treatment; polylactic acid; nanocellulose; nanochitin; hydroxyapatite; green metal-organic frameworks; materialkemi; Materials Chemistry;

   Sammanfattning : The globally escalating water pollution and water scarcity necessitates the development of efficient and sustainable water treatment technologies. This thesis investigates the feasibility of utilizing renewable and waste materials in the form of green composites for the fabrication of water purification filters via Fused Deposition Modelling (FDM). LÄS MER

4. 13. Ring-opening polymerization from cellulose for biocomposite applications

   Författare :Hanna Lönnberg; Anders Hult; David Plackett; KTH; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cellulose; ring-opening polymerization; polycaprolactone; grafting from; Chemistry; Kemi;

   Sammanfattning : There is an emerging interest in the development of sustainable materials with high performance. Cellulose is promising in this regard as it is a renewablere source with high specific properties, which can be utilized as strong reinforcements in novel biocomposites. LÄS MER

5. 14. Surface Modification of Cellulose by Covalent Grafting and Physical Adsorption for Biocomposite Applications

   Författare :Carl Bruce; Eva Malmström; Anna Carlmark; Linda Fogelström; Youssef Habibi; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemi; Chemistry;

   Sammanfattning : There is an increasing interest to replace fossil-based materials with renewable alternatives. Cellulose fibers/nanofibrils (CNF) are sustainable options since they are biobased and biodegradable. In addition, they combine low weight with high strength; making them suitable to, for example, reinforce composites. LÄS MER

7. 15. Studies on Metalloenzymatic Dynamic Kinetic Resolutions and Iron-Catalyzed Reactions of Allenes

   Författare :Karl P. J. Gustafson; Jan-Erling Bäckvall; Johannes de Vries; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Racemization; Dynamic Kinetic Resolution; Enzyme Catalysis; XAS; Asymmetric Synthesis; organisk kemi; Organic Chemistry;

   Sammanfattning : The main focus of this thesis lies in the development of new transition metal-catalyzed chemoenzymatic dynamic kinetic resolutions (DKR) of both alcohols and amines. The first part of the thesis deals with the development of new heterogeneous systems for the DKR of amines. LÄS MER