Search for dissertations about: "film extrusion"

Showing result 1 - 5 of 16 swedish dissertations containing the words film extrusion.

2. 1. Thermoplastic processing of starch and cellulose-containing polymers

   Author : Mats Thunwall; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermoplastic starch; amylose; extrusion; injection moulding; polymers; cellulose; film blowing; composite;

   Abstract : Starch and cellulose are two naturally occurring polymers that have the potential to reduce the dependence on fossil resources if used as replacements or as complements to synthetic polymers. There are however some problems associated with the use of these polymers that have to be addressed and solved. READ MORE

4. 2. Wheat Gluten -Based Materials and Composites: Extrusion, Casting and Antimicrobial Properties

   Author : Hasan Türe; Mikael Hedenqvist; José-Maria Lagaron; KTH; []
   Keywords : wheat gluten; extrusion; urea; montmorillonite; sol-gel process; hybrid materials; casting; compression moulding; potassium sorbate; antifungal; plasticiser; thermal; mechanical and barrier properties.;

   Abstract : The use of bio-based polymers as packaging materials has gained much attention due to increasing environmental concerns regarding non-biodegradable petroleum-derived plastics. Wheat gluten (WG) is a valuable renewable resource for the production of bio-based materials because of its low price, biodegradability, good film-forming properties and good gas barrier properties under dry conditions. READ MORE

5. 3. Protein-based Packaging Films, Sheets and Composites: Process Development and Functional Properties

   Author : Sung-Woo Cho; Mikael Hedenqvist; Amar K. Mohanty; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; wheat gluten; solution casting; compression molding; extrusion; injection molding; aging; migration; opacity; heat sealability; hemp fiber; laminate; polylactic acid; clay; nanocomposites.; Other chemical engineering; Övrig kemiteknik;

   Abstract : The depletion of the petroleum resources and a number of environmental concerns led to considerable research efforts in the field of biodegradable materials over the last few decades. Of the diverse range of biopolymers, wheat gluten (WG) stands out as an alternative to synthetic plastics in packaging applications due to its attractive combination of flexibility and strength, high gas barrier properties under low humidity conditions and renewability. READ MORE

6. 4. Processing and Development of Wheat Gluten Plastics

   Author : Henrik Ullsten; Mikael S. Hedenqvist; Nathalie Gontard; KTH; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Wheat Gluten; Extrusion; Processing; Chemistry; Kemi;

   Abstract :  Renewable packaging materials are of interest for a more sustainable environment. Wheat gluten is one of the most interesting candidates to replace petroleum-based oxygen-barrier polymers for packaging applications. READ MORE

7. 5. Highly-filled biocomposites: modelling, processing, and characterization

   Author : Sajjad Pashazadehgaznagh; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; modelling; fiber orientation; rheology.; Wood plastic composites WPCs ; extrusion; surface instability;

   Abstract : The use of polymer with natural fiber reinforcements is expected to increase significantly. This can be noted in several industrial sectors of strategic importance for Sweden, such as automotive, packaging, construction, and furniture industries. READ MORE