Essays about: "suspension polymerisation"

Found 3 essays containing the words suspension polymerisation.

1. 1. Development of an Expancel Product through Optimisation of Polymer Composition and the Suspension Stabilising System

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Frida Berggren; [2014]
   Keywords : microspheres; suspension polymerisation; Pickering emulsions; flocculation;

   Abstract : Thermally expandable microspheres are spherical particles around 5-­‐40 µm in size, consisting of a polymeric shell in which a blowing agent has been encapsulated. The microspheres are expanded upon heating, resulting in a particularly low density. Microspheres are therefore suitable to use as light weight filler or as foaming agent. READ MORE

3. 2. Synthesis of Thermo Expandable Microspheres

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Jessica Fredlund; [2011]
   Keywords : microspheres; expandable; filler; suspension polymerization;

   Abstract : Termiskt expanderbara mikrosfärer är ihåliga polymera partiklar i vilka en flyktig drivgas har kapslats in. När mikrosfärerna upphettas förgasas drivgasen, vilket ökar trycket i mikrosfärerna så att de expanderar och deras volym ökar avsevärt. READ MORE

4. 3. Precipitation and aging of magnesium hydroxide before suspension polymerisation

   University essay from Institutionen för medicinsk biokemi och mikrobiologi

   Author : Therese Skoglund; [2005]
   Keywords : Colloidal suspension; particle size; emulsion; stabilization; viscosity;

   Abstract : A colloid of magnesium hydroxide is used to stabilize droplets of monomers before suspension polymerisation. The characteristics of precipitated magnesium hydroxide changes significantly during the first hours. The viscosity is high and flucctuating at first but decreases and becomes low and stable after a few hours. READ MORE