4. Other cell fillers used with glass microspheres
4.1 Cenospheres
Cenospheres are by-products recovered from the fly ash of pulverized coal-fired power plants.
The chemical composition of these fly ashes varies according to the origin of the coal used; they are essentially based on silica and alumina. These dark-colored cellular fillers have a density of 0.70 to 0.85 g/cm 3 , a particle size ranging from 10 to 300 µm and a compressive strength of around 15 MPa.
SCROLL TO TOP4.2 Synthetic resin microspheres
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Other cell fillers used with glass microspheres
Bibliography
Events
Offshore Technology Conference
Offshore Norway
http://www.offshorenorway.no/event/activitymonths
Society of Petroleum Engineers
Standards and norms
- Plastics – Methods for determining the density of non-cellular plastics – Part 3: Method using a gas pycnometer - NF EN ISO 1183-3 - 1999
- Rigid cellular plastics – Determination of compression characteristics - ISO 844 - 2014
- Plastics – Determination of compression properties - NF EN ISO 604 - 2004
- Rigid cellular plastics -- Determination of bending properties – Part 2: Determination of flexural...
Patents
US4767726: Glass microbubbles
US4904293: Method for producing silica microspheres
US5069702: Method of making small hollow glass spheres
US4983550: Hollow glass spheres
US5534348: Hollow borosilicate microspheres and method of making
US5064784: Glass frit useful for the preparation of glass bubbles, and...
Directory
Glass microsphere manufacturers in Europe (non-exhaustive list)
3M France
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