Search for dissertations about: "reactive melt processing"

Found 5 swedish dissertations containing the words reactive melt processing.

2. 1. Interface design of biodegradable polyester/nanocellulose biocomposites via reactive melt processing: tailoring of polyester matrix

   Author : Angelica Avella; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; aminolysis; cellulose nanocrystals; wet-feeding; crosslinking; poly ε-caprolactone ; biocomposites; reactive melt processing;

   Abstract : Pushed by the societal awareness of plastic pollution, attempts are being made to find sustainable materials that can minimize the environmental impact of plastics. In this context, biocomposites based on biodegradable polymers and renewable lignocellulose are of interest. READ MORE

4. 2. Morphology and Properties of Polymer Blends -Polypropylene and a Thermoplastic Elastomer -Polypropylene/Polyamide (1/1) and a Modified Thermoplastic Elastomer

   Author : Bertil Ohlsson; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Reactive Processing; Compatibilization; Thermal Properties; Mechanical Properties; Morphology; SEBS; Polyamide; Polymer Blends; Polypropylene; Polymer technology; biopolymers; Polymerteknik;

   Abstract : The search for polymeric materials with new property profiles has stimulated a great interest into polymer blends and reactive processing. During recent years many new blends have reached the market. READ MORE

5. 3. Processing and properties of silane crosslinked wood-polyethylene composites

   Author : Göran Grubbström; Kristofer Gamstedt; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

   Abstract : Utilizing wood as filler and reinforcement in thermoplastic polymer-matrix composites, has gained interest during the last decades, mainly as profile extruded exterior building products such as deck boards, railings, and door- and window frame components. This thesis deals with silane-crosslinking of wood-polyethylene composites through reactiveextrusion. READ MORE

6. 4. Microwave-assisted transformations of lignin for value-added material applications

   Author : Jenevieve G. Yao; Minna Hakkarainen; Karin Odelius; Monika Österberg; KTH; []
   Keywords : lignin; microwave-assisted processes; organosolv fractionation; esterification; fused filament fabrication; digital light processing; lignin; mikrovågsassisterade strategier; organosolv-fraktionering; förestring; additiv tillverkning; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : The chemical diversity and structural complexity of lignin, an abundant biopolymer found in vascular plants, present a multitude of opportunities for the modification and fine-tuning of its properties to suit downstream demands. In this thesis, microwave-assisted strategies were explored as efficient and environment-friendly pathways for lignin valorization towards value-added material applications. READ MORE

7. 5. Surface modification approaches of cellulose nanofibrils and their effect on dispersibility

   Author : Tahani Kaldéus; Eva Malmström; Tekla Tammelin; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose nanofibrils; colloidal stability; re dispersibility; surface modification; bio-nanocomposites; interface; cellulosa nanofibriller; kolloidal stabilitet; re dispergerbarhet; ytmodifiering; bio-nanokompositer; gränssnitt; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : In the strive to find and develop sustainable bio-based materials an increased interest for nanocellulosic materials as attractive alternatives has arisen during the past decades. This can be attributed to their abundant renewability, remarkable inherent mechanical properties and their capability to be chemically modified. READ MORE