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首页> 外文期刊>Journal of Applied Polymer Science >Controlled cationic curing of epoxy composites with photochemically modified silanol encapsulated carbon black
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Controlled cationic curing of epoxy composites with photochemically modified silanol encapsulated carbon black

机译：Controlled cationic curing of epoxy composites with photochemically modified silanol encapsulated carbon black

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Epoxy resins have been an inspiration in adhesives and coatings, however, uneven photopolymerization kinetics result in wrinkled surface and filler segregation, causing aesthetic and mechanical damage. Hence a control over curing kinetics is required not only to dodge filler segregation but also to control composite surface smoothness. In this study, photochemical modification of carbon black with mercaptopropyltrimethoxysilane, has resulted in unique silanol dendrites exterior on carbon black. Kinetic investigation confirmed that E-a for cationic polymerization of modified CB composite is three folds less in comparison to neat matrix, and two folds less in comparison to unmodified CB composite. Silanol dendrites have contributed on epoxy curing kinetics, through activated monomer mechanism. Samples have been characterized through XPS, FTIR, SEM, TGA, DSC, Raman, and EDX.

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