The influence of mixing time and colloidal silica on the lubricating

The influence of mixing time and colloidal silica on the lubricating properties of magnesium stearate was studied using an instrumented single-punch machine. The lubricant …

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Effect of Shear History on Rheology of Time-Dependent Colloidal …

The present article investigates the rheological behavior of time dependent colloidal gels made of hydrophilic fumed silica and a hydrophobic solvent. The results show …

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The influence of mixing time and colloidal silica on the lubricating

The lubricant was mixed with sodium chloride, anhydrous lactose, calcium citrate granulate and sodium chloride-colloidal silica-mixtures. Short mixing time decreased the negative effects of …

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(PDF) On the mechanism of colloidal silica action to …

Blends comprising microcrystalline cellulose or calcium hydrogen phosphate dihydrate and colloidal silica were examined using powder rheometer. The blends were formulated to represent effects...

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Rheology of UV curable colloidal silica dispersions for rapid

Initial higher shear stress for 43 vol% and additional mixing time could have influence on lower dispersion viscosity. For 50 vol% of silica ( Fig. 11 b, 40 vol% "nano" and 10 …

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Mixing order of glidant and lubricant – Influence on powder and …

In the present study we investigated the effect of the order of addition of two commonly used excipients, CS, a commonly used glidant, and MgSt, a universally used lubricant that also has …

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On the mechanism of colloidal silica action to improve flow …

In contrast with the image of 1% colloidal silica – MCC mixture (Fig. 11 c), it is seen that by the longest time of mixing, there is still enough colloidal silica present on the surface to …

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Preparation of Stable Colloidal Silica with Controlled Size …

In this experiment, the results showed that the higher solution pH (affect the decreasing of zeta potential value) and higher colloidal concentration (affect the increasing of zeta potential value) …

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(PDF) Effect of mixing proportion and mixing time on primary …

In this work different composition (75% - 25%, 70% - 30% and 65% - 35%) of zircon flour and colloidal silica is analyzed at different mixing time (at 24hrs, 48hrs and 72hrs). …

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Effects of colloidal silica suspension mixing on porosity of …

In this study, the effects of different silica concentrations in colloidal silica suspension, which was used as a mixing liquid for phosphate-bonded investment powders, on the porosity of set and …

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Analyzing the sol-gel transition of colloidal silica suspensions …

This study aims to investigate the application of time-resolved rheometry (TRR) for characterizing the sol-gel transition in acid-catalyzed tetraethyl orthosilicate (TEOS)-based …

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(PDF) On the mechanism of colloidal silica action to improve flow

Blends comprising microcrystalline cellulose or calcium hydrogen phosphate dihydrate and colloidal silica were examined using powder rheometer. The blends were …

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Effect of the alumina and silica source mixing procedure on the

In this study, different aluminum-silica sols were prepared by adjusting the alumina and silica source mixing procedure using aluminum carboxylate sol and tetraethoxysilane …

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(PDF) Effect of mixing proportion and mixing time on …

In this work different composition (75% - 25%, 70% - 30% and 65% - 35%) of zircon flour and colloidal silica is analyzed at different mixing time (at 24hrs, 48hrs and 72hrs). Viscosity,...

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