With many processing advantages, electrophoretic deposition (EPD) has
been chosen as the fabrication technique for inorganic-organic
nanocomposites. However, before the EPD process, avoiding the particles
agglomeration is considered a necessary perquisite for the success of
fabrication.
In this research, two different liquid-liquid extraction methods, one is
one-step and the other is two-step, were developed to solve the
agglomeration problem of inorganic particles. The adsorption
mechanisms of the extractors and extraction mechanisms were
investigated during this work. The strong adsorptions provided by –OH
groups of the extractors and further Schiff base reaction allowed for the
process of extraction.
In the fabrication, polyelectrolytes acted as the film forming and charging
agents. Relatively stable suspensions with extracted inorganic particles
were prepared for the EPD of inorganic-organic nanocomposites. The
thickness of deposited films is proportional to the concentration of the
suspension and deposition time. With the addition of flame retardant
inorganic particles, the prepared nanocomposite films showed an
enhanced flame retardant performance. / Thesis / Master of Applied Science (MASc)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/23399 |
| Date | 07 1900 |
| Creators | Zhao, Xinya |
| Contributors | Zhitomirsky, Igor, Materials Science and Engineering |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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