Method for preparing carbon black inclusion pigment in situ by nonhydrolytic sol-gel process
The invention provides a method for preparing carbon black inclusion pigment in situ by nonhydrolytic sol-gel process. The method comprises the following steps of: adopting anhydrous zirconium source and anhydrous silicon source as precursors, adopting chloroalkane or anhydrous low-carbon alcohol as...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a method for preparing carbon black inclusion pigment in situ by nonhydrolytic sol-gel process. The method comprises the following steps of: adopting anhydrous zirconium source and anhydrous silicon source as precursors, adopting chloroalkane or anhydrous low-carbon alcohol as a solvent, adopting fluoride as a mineralizing agent, adding an organic compound capable of generating carbon black in situ into precursor mixing solution, forming zirconium silicate gel by condensation, backflowing and volume-bomb treatment, drying and grinding gel, putting the gel in an alumina crucible for sealed forging, then carrying out unsealed forging and obtaining zirconium-silicate-based carbon black inclusion pigments. The method solves the control difficult problem for dispersion and granularity in externally adding carbon black thoroughly, has the characteristics of high synthesis rate and low synthesis temperature, not only is the preparation process simplied, but also the pollution of carbon-black d |
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