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nano-mmt
Nano cast stone glue performance and effect, generally in the hydrated into gel state is applied and application to achieve the best effect and the largest re hydration should be first of inorganic gel is prepared into water dispersion liquid, water gel formation, then add other compounded solvent, buffer liquid, electrolyte, thermal insulating agent or organic glue.
Preparation of nano montmorillonite (not adding other ingredients):
Under the condition of stirring, the amount of (depending on the need for viscosity and, with solid content 2.5%-5%) inorganic gel slowly adding hot water or cold water, formation water gel time depending on water temperature and stirring into colloidal viscosity increased with the extension of storage time.
1, boiling: after mixing in a dispersed state by boiling that water into glue, to be cooled after a certain period of time, can be obtained with the viscosity.
2, hot water: after mixing can accelerate the speed of water into plastic, and the industry is relatively easy to achieve, to be cooled, hydration completely.
3, room temperature: after about fifteen minutes, the powder is dispersed in the water, but the water is slow, 24 hours after the preparation of viscosity can be achieved.
4, mixing speed has a certain effect on the time of gelation.
Two, the choice of mixer:
High shear and low shear mixer can be used for preparing its dispersion, but > 3000 rpm /MIN of the high shear mixer can effectively removes small reunion, and for the product element toxicity, no corrosion, stable property, the mixer material without special requirements.
Three, cleaning equipment:
As the product in the water into plastic, dry after water loss can be re hydration, it is generally not on the next batch of too much impact.
Four, the preparation of a good hydration dispersion can be diluted to use, but need to dilute the process of mixing, dilute the need for a certain period of time after the re hydration.
Five, concentration and viscosity is not in all range is linear change and the solid content is 2.5%, the viscosity is greater than 800 CPS.