Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Photopolymerization of clay/polyurethane nanocomposites induced by an intercalated photoinitiator through sol–gel modification
AbstractAn organic silane photoinitiator (1173IPS) was synthesized through the reaction of (3-Isocyanatopropyl)triethoxysilane (IPS) and 2-hydroxy-2-methyl-1-phenylpropane-1-one (1173). The objective of this work was to intercalate photoinitiator 1173IPS into a montmorillonite (MMT) through sol–gel reaction of cationic triethoxysilanepropylamineformylethyl trimethyl ammonium iodide (APS) and 1173IPS. The modified clay was then mixed with urethaneacylate oligomer (CN962) and 1,6-hexanediol diacrylate (HDDA) to form polyurethane–nanoclay composites by photopolymerization. Real-time FTIR (RTIR) results showed the system had almost the same final conversion but different polymerization rates with different ratios of APS/1173IPS modified clay. XRD and TEM results showed that the modified clay was exfoliated and dispersed in parallel alignments as multilayers in the organic matrix.
Photopolymerization of clay/polyurethane nanocomposites induced by an intercalated photoinitiator through sol–gel modification
AbstractAn organic silane photoinitiator (1173IPS) was synthesized through the reaction of (3-Isocyanatopropyl)triethoxysilane (IPS) and 2-hydroxy-2-methyl-1-phenylpropane-1-one (1173). The objective of this work was to intercalate photoinitiator 1173IPS into a montmorillonite (MMT) through sol–gel reaction of cationic triethoxysilanepropylamineformylethyl trimethyl ammonium iodide (APS) and 1173IPS. The modified clay was then mixed with urethaneacylate oligomer (CN962) and 1,6-hexanediol diacrylate (HDDA) to form polyurethane–nanoclay composites by photopolymerization. Real-time FTIR (RTIR) results showed the system had almost the same final conversion but different polymerization rates with different ratios of APS/1173IPS modified clay. XRD and TEM results showed that the modified clay was exfoliated and dispersed in parallel alignments as multilayers in the organic matrix.
Photopolymerization of clay/polyurethane nanocomposites induced by an intercalated photoinitiator through sol–gel modification
Tan, Hailin (Autor:in) / Yang, Dongzhi (Autor:in) / Han, Jing (Autor:in) / Xiao, Ming (Autor:in) / Nie, Jun (Autor:in)
Applied Clay Science ; 42 ; 25-31
31.01.2008
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Photopolymerization and characteristics of reactive organoclay-polyurethane nanocomposites
| British Library Online Contents | 2009
Rheological Property of Intercalated Modification Clay
| British Library Online Contents | 2014
Investigation of Melt-Intercalated PET-Clay Nanocomposites
| British Library Online Contents | 2004