A Study Of Polyurethane-Modified Epoxy And Its Nanosilica Filled Composites

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dc.contributor.authorShereen Ong, Joo Suan
dc.date.accessioned2018-08-21T02:01:48Z
dc.date.available2018-08-21T02:01:48Z
dc.date.issued2009-11
dc.description.abstractThis study describes the chemical modification of epoxy resin with polyurethane-precursors (PU-precursors) of varying chain length and aromacity. PUprecursors with diol-diisocyanate ratio of 1:3 are optimum for a chemical incorporation into epoxy. Differentiating the present study from other available PUepoxy systems are the chemically incorporated PU, as well as the use of PU with low molecular weight (MW) and low degree of polymerization (n). These differentiating factors have been attributed to the successful aversion of phase separation, reduced glass transition temperature (Tg) and thermal stability, that has otherwise been common in PU-incorporated epoxy systems. Nevertheless, confining to chemical incorporation has limited the incorporated PU quantity to less than 6 phr.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/6377
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectPolyurethane-Modified Epoxyen_US
dc.subjectNanosilica Filled Compositesen_US
dc.titleA Study Of Polyurethane-Modified Epoxy And Its Nanosilica Filled Compositesen_US
dc.typeThesisen_US
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