Sökning: "transport-properties"

Visar resultat 1 - 5 av 238 avhandlingar innehållade ordet transport-properties.

1. 1. Transport Properties and Durability of LCP and FRP materials for process equipment

   Författare :Stefanie Römhild; Mikael Hedenqvist; Rodney Rychwalski; KTH; []
   Nyckelord :Liquid crystalline polymer LCP ; Vectra A950; disclination; annealing; transport properties; diffusion; lining; bonding; glass fibre reinforced plastics FRP ; thermoset; vinyl ester; novolac; water; water activity; sorption isotherm; long-term properties; FEP;

   Sammanfattning : This thesis focuses on transport properties and durability of liquid crystalline polymers (LCP)and fibre reinforced plastics (FRP) with regard to application in industrial process equipment.In the first part of the study the possibility of using a thermotropic LCP of type Vectra A950as lining material for FRP process equipment was investigated. LÄS MER

3. 2. Transport properties and rheological properties of polymers with special molecular architecture

   Författare :Homa Yousefi; KTH; []
   Nyckelord :Dendritic polymers; Liquid crystalline polymers; Transport properties; Shear-induced orientation; Structure;

   Sammanfattning : .... LÄS MER

4. 3. Molecular associations and transport properties of amphiphiles and gastrointestinal mucin in aqueous solution

   Författare :Géraldine Lafitte; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; transport properties; diffusion NMR; Magnetic resonance imaging; Physical chemistry; hydrophobic association; electrostatic repulsion; gel; Mucin; Surfactant;

   Sammanfattning : An effective uptake/absorption of drug formulations involve many processes; one being the transport of the active molecule through the mucus layer. The mucus layer is a complex mixture of biological molecules. Among them, mucin is the molecule that mainly provides the gel properties of the layer. LÄS MER

5. 4. Durability of fire exposed concrete : Experimental Studies Focusing on Sti„ffness & Transport Properties

   Författare :Joakim Albrektsson; Johan Silfwerbrand; Lars Boström; Manouchehr Hassanzadeh; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete; Fire; Polypropylene fibres; Durability; Tunnel; Damage assessment; Ultrasonic pulse velocity; Water absorption; Chloride migration; DIC; Byggvetenskap; Civil and Architectural Engineering;

   Sammanfattning : Road and rail tunnels are important parts of the modern infrastructure. High strength concrete (HSC) is commonly used for tunnels and other civil engineering structures, since it allows high load carrying capacity and long service life. In general, Swedish road and rail tunnels should be designed for a service life of 120 years. LÄS MER

7. 5. Devlopment and relaxation of orientation in liquid crystalline polymers : transport properties of liquid crystalline polymer blends

   Författare :Göran Wiberg; KTH; []
   Nyckelord :;

   Sammanfattning : In this thesis different types of liquid crystallinepolymers have been investigated with respect to build up andrelaxation of orientation. The potential of making new barriermaterials using liquid crystalline polymer blends was alsostudied. LÄS MER