3D-printed strong hybrid materials with low shrinkage
The effect of micro-sized and nano-sized SiO 2 on the hybrid paste's rheological behavior was studied through steady-state and oscillatory measurements. Fig. 1a and b shows the steady-state viscosity and the yield stress (τ y) of the paste at 28 °C.In the absence of silica, the pure resin P100M0N0 possessed a viscosity (η) of ~0.7 Pa s, exhibiting a Newtonian response (Fig. 1a).
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