Sökning: "core binders"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden core binders.

1. 1. Factors Related to the Formation of Gas Porosity in Grey Cast Iron: Investigation of Core Gas Evolution and Gas Concentrations in Molten Iron

   Författare :Jessica Orlenius; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; core binders; Gas porosity; hydrogen; grey iron; gas absorption; nitrogen; oxygen; gas evolution rate; green sand; mould filling; gas volume; gas solubility;

   Sammanfattning : Since gas porosity is a major casting problem, it is of greatest importance to increase the knowledge about the foundry process in order to minimise the presence of gas porosity and thereby improving the casting quality. Gas porosity is generally considered to originate from gases precipitated during solidification of iron and from entrained gas picked up by the metal during the mould filling. LÄS MER

3. 2. Heterogeneous Film-Forming Latexes : Preparation - Morphology - Mechanical Properties

   Författare :Ola Karlsson; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; core-shell; particle morphology; heterogeneous latexes; particle size; crosslinking; hydrophilicity; poly isoprene-co-styrene-co-methacrylic acid ; monomer partitioning; internal particle viscosity; transmission electron microscopy TEM ; calorimetric reactor; two-stage; seeded emulsion polymerization; film morphology; mechanical properties; paper coating.; Polymer technology; biopolymers; Polymerteknik;

   Sammanfattning : This thesis describes the preparation of heterogeneous latexes, which may serve as binders in coating applications, and the characterization of these. The latexes were prepared in two-stage seeded emulsion polymerization. LÄS MER

4. 3. Respiratory symptoms and lung function in foundry workers exposed to low molecular weight isocyanates

   Författare :Håkan Löfstedt; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :formaldehyde;

   Sammanfattning : Background: Some foundries use the Hot Box method, which involves use of a nitrogen-containing binder system to produce cores for hollow castings. During the process, low molecular weight isocyanates such as isocyanic acid (ICA) and methyl isocyanate (MIC) are formed, which are potentially toxic. LÄS MER

5. 4. Targeting Biological Systems by Organic Synthesis Methods - Cancer Cells and Proteins

   Författare :Cecilia Winander; Lars Baltzer; Stefan Sjöberg; Jörgen Carlsson; Vladimir Tolmachev; Thomas Schrader; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; carborane; doxorubicin; 125I; molecular recognition; four-helix bundle; polypeptide conjugate; affinity; chitinase; acetylcholine esterase; Organisk kemi;

   Sammanfattning : This thesis describes the design and synthesis of molecules with potential roles in biomedicine, with an emphasis on molecular recognition in complex biological environments. The first chapter describes the synthesis and evaluation of compounds for use in nuclide therapy. LÄS MER

7. 5. Studies on O-glycosylation of mucin-type proteins and their binding to antibodies, bacterial toxins and viral receptors

   Författare :Stefan Gaunitz; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Carbohydrates are ubiquitous on the surface of all cells in mammals where they are involved in interactions with the surroundings (extracellular matrix), other cells (including self and non-self) and microbes (bacteria and virus). Carbohydrate-protein interactions in nature are often mediated via multivalent binding where the combined strength of multiple receptor- ligand interactions results in a binding that is highly specific and strong. LÄS MER