請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/41984
標題: Preparation of clay/epoxy nanocomposites by layered-double-hydroxide initiated self-polymerization
作者: Chan, Y.N.
戴憲弘
Juang, T.Y.
Liao, Y.L.
Dai, S.A.
Lin, J.J.
關鍵字: Epoxy
Layered double hydroxides
Nanocomposite
silicate nanocomposites
mechanical-properties
clay nanocomposites
epoxy nanocomposites
exfoliated clay
montmorillonite
intercalation
hybrids
resin
polypropylene
期刊/報告no:: Polymer, Volume 49, Issue 22, Page(s) 4796-4801.
摘要: An anionic clay, magnesium-aluminum layered double hydroxide (Mg(2)Al-NO(3)-LDH), was prepared by a co-precipitation method and intercalated with poly(oxypropylene)-amindocarboxylic acid (POP-amido acid). Depending on the POP-intercalating agents with molecular weight at 2000 or 400 g/mol, the intercalated LDHs were analyzed to have d spacing of 6.8 or 2.7 nm and organic incorporation of 80 and 55 wt%, respectively. Two comparative POP/LDH hybrids were allowed to initiate the self-polymerization of the epoxy resin, diglycidyl ether of bisphenol-A (DGEBA). The curing rate was significantly increased by using the hybrids as initiators for epoxy curing, demonstrated by DSC thermal analysis that the exothermic peak shifted from 182 to 152 degrees C by increasing organoclay addition. The resultant nanocomposites prepared from the anionic LDH initiated epoxy self-polymerization have the improved thermal and physical properties, evidenced by TGA, XRD, TEM, and SEM analyses. (C) 2008 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/41984
ISSN: 0032-3861
文章連結: http://dx.doi.org/10.1016/j.polymer.2008.08.062
顯示於類別:化學工程學系所

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