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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 71 to 80 of 842 (0.009 seconds)| 71 |
Angle resolved XPS study of the migration of a silane additiveFraser, Stuart January 2001 (has links)
No description available.
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Elastomer modified epoxies : Toughening of tetraglycidyl diamino diphenyl methane epoxyLee, W. H. January 1986 (has links)
No description available.
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| 73 |
The cure characteristics and physical properties of glycidyl-ether epoxy resinsGreenfield, C. L. January 1988 (has links)
No description available.
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| 74 |
Rheology of polyester and epoxy liquids during cure.Ryan, Michael E. January 1973 (has links)
No description available.
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Toughening of Epoxies Based on Self-Assembly of Nano-Sized Amphiphilic Block Copolymer MicellesLiu, Jia 16 January 2010 (has links)
As a part of a larger effort towards the fundamental understanding of mechanical
behaviors of polymers toughened by nanoparticles, this dissertation focuses on the
structure-property relationship of epoxies modified with nano-sized poly(ethylene-altpropylene)-
b-poly(ethylene oxide) (PEP-PEO) block copolymer (BCP) micelle particles.
The amphiphilic BCP toughener was incorporated into a liquid epoxy resin and selfassembled
into well-dispersed 15 nm spherical micelle particles. The nano-sized BCP, at
5 wt% loading, can significantly improve the fracture toughness of epoxy (ca. 180%
improvement) without reducing modulus at room temperature and exhibits only a slight
drop (ca. 5 �C) in glass transition temperature (Tg). The toughening mechanisms were
found to be BCP micelle nanoparticle cavitation, followed by matrix shear banding,
which mainly accounted for the observed remarkable toughening effect. The unexpected
?nano-cavitation? phenomenon cannot be predicted by existing physical models. The
plausible causes for the observed nano-scale cavitation and other mechanical behaviors
may include the unique structural characteristics of BCP micelles and the influence from
the surrounding epoxy network, which is significantly modified by the epoxy-miscible
PEO block. Other mechanisms, such as crack tip blunting, may also play a role in the toughening. Structure-property relationships of this nano-domain modified polymer are
discussed. In addition, other important factors, such as strain rate dependence and matrix
crosslink density effect on toughening, have been investigated. This BCP toughening
approach and conventional rubber toughening techniques are compared. Insights on the
decoupling of modulus, toughness, and Tg for designing high performance thermosetting
materials with desirable physical and mechanical properties are discussed.
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| 76 |
Surface science studies of olefin oxidation on the silver surfaceJavadekar, Ashay Dileep. January 2009 (has links)
Thesis (M.Ch.E.)--University of Delaware, 2009. / Principal faculty advisor: Mark A. Barteau, Dept. of Chemical Engineering. Includes bibliographical references.
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A preliminary study of the use of epoxy resin adhesives for joining concrete to steel in composite constructionSeverud, Laverne Kenneth, 1938- January 1960 (has links)
No description available.
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| 78 |
Rheology of polyester and epoxy liquids during cure.Ryan, Michael E. January 1973 (has links)
No description available.
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| 79 |
Structure-dielectric property relationships for epoxy systems : a free volume analysisSimpson, Joycelyn Ovetta 08 1900 (has links)
No description available.
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| 80 |
Machining of ceramic filled epoxy and its impact on injection mold ApplicationsTomori, Oluwatosin Oyewole 08 1900 (has links)
No description available.
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