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Comparison of Rheological Behavior of Three Gel-Type Vehicles for Printing Ink
Abstract:
Three gel-type vehicles were synthesised and their rheological behavior was investigated in this paper. The main differences of three samples are the concentraton of resin (R-1>> G-1> G-2) and gelata (R-1<< G-1< G-2). The results show that R-1 is more temperature sensitive which might not favorable for the high speed printing. G-2 and G-1, which contain higher amount of gelling agent, might have a enhanced net-structure due to the reaction between gelling agent and resin. And the results of dynamic strain sweep and frequency sweep indicate that the gelata can give a good viscoelastic to the vehicle while the higher amount of resin might benefit the stability of vehicle. Although the most suitable ratio of gel-vehicle desired further discovery, the rheological behavior could be a proper means as to optimize the formula of ink.
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2791-2795
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Online since:
January 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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