Preparation, characterization and properties of montmorillonite/epoxy compounds
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Case Western Reserve University School of Graduate Studies / OhioLINK
1994
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=case1057604761 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-case10576047612021-08-03T05:31:04Z Preparation, characterization and properties of montmorillonite/epoxy compounds Kelly, Paul Thomas Preparation characterization properties montmorillonite/epoxy compounds In order to utilize the expanding nature of smectite clays in the compensation of shrinkage in epoxy systems, several "epoxyphilic" montmorillonites were prepared via ion exchange reactions. These epoxyphilic montmorillonites contain moieties within their structures that can react with either the epoxide resin, curing agent or both. The swelling behavior of aminolauric acid-intercalated montmorillonite (ALA-MMT) was studied under various swelling conditions prior to curing of the epoxy. It was determined that to obtain larger montmorillonite interlayer distances in the cured epoxy, the ALA-MMT should be swollen in the curing agent rather than the epoxide resin. The curing reaction was shown to increase the interlayer spacing of the ALA-MMT more efficiently when swollen in the curing agent rather than the epoxide resin. Based on these results, models for the swelling behavior of ALA-MMT is proposed. The addition of 2-5% epoxyphilic montmorillonite to epoxy was observed to reduce the maximum residual stress by more than 50%. The glass transition temperatures of these clay/epoxy compounds were generally higher than the pure epoxy. The modulus and ultimate strengths of these compounds were as high or higher than pure epoxy. However, due p rimarily to large agglomerations of montmorillonite particles, the ultimate elongation was drastically reduced. 1994 English text Case Western Reserve University School of Graduate Studies / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=case1057604761 http://rave.ohiolink.edu/etdc/view?acc_num=case1057604761 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Preparation characterization properties montmorillonite/epoxy compounds |
| spellingShingle |
Preparation characterization properties montmorillonite/epoxy compounds Kelly, Paul Thomas Preparation, characterization and properties of montmorillonite/epoxy compounds |
| author |
Kelly, Paul Thomas |
| author_facet |
Kelly, Paul Thomas |
| author_sort |
Kelly, Paul Thomas |
| title |
Preparation, characterization and properties of montmorillonite/epoxy compounds |
| title_short |
Preparation, characterization and properties of montmorillonite/epoxy compounds |
| title_full |
Preparation, characterization and properties of montmorillonite/epoxy compounds |
| title_fullStr |
Preparation, characterization and properties of montmorillonite/epoxy compounds |
| title_full_unstemmed |
Preparation, characterization and properties of montmorillonite/epoxy compounds |
| title_sort |
preparation, characterization and properties of montmorillonite/epoxy compounds |
| publisher |
Case Western Reserve University School of Graduate Studies / OhioLINK |
| publishDate |
1994 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=case1057604761 |
| work_keys_str_mv |
AT kellypaulthomas preparationcharacterizationandpropertiesofmontmorilloniteepoxycompounds |
| _version_ |
1719421176016535552 |