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Composite mica cerium titanium pearl pigment and preparation method thereof

A pearlescent pigment and composite technology, applied in the direction of inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., can solve problems such as insufficient gloss, achieve high gloss, good gloss effect and color effect, and good decorative effect Effect

Inactive Publication Date: 2010-04-14
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CeO 2 - Mica pearlescent pigment is coated with oxide CeO on the surface of mica pearlescent pigment by liquid phase coating method 2 , get yellow pearlescent pigment, but its gloss is not enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] at 20% CeO 2 - 20% TiO coated on mica pearlescent pigment 2 Film layer, first coated to obtain 20% CeO 2 - Mica pearlescent pigments. Prepare Diluted TiCl 4 The solution is standby (hereinafter referred to as standby dilution), and its concentration is 10%; weigh 20 grams of CeO 2 - Mica pearlescent pigment, add 200ml distilled water to make 10% CeO 2 - Mica pearlescent pigment suspension, heated and stirred in a water bath at 65°C with a stirring speed of 500r / min; take the standby dilution solution and add 200ml of distilled water to dilute again with a concentration of 10% TiCl 4 solution; prepare 500ml of NaOH solution with a concentration of 5%; first adjust the pH of the suspension to 3 with dilute hydrochloric acid, and simultaneously add CeO with a peristaltic pump 2 - TiCl is added dropwise to the suspension of mica pearlescent pigments 4 solution and NaOH solution, TiCl 4 The dropping rate of the solution was 1.3 ml / min, and the dropping rate of the NaO...

example 2

[0022] at 30% CeO 2 - 10% TiO coated on mica pearlescent pigment 2 Film layer, first coated to obtain 30% CeO 2 - Mica pearlescent pigments. Weigh 10 grams of CeO 2 - Mica pearlescent pigment, add 300ml distilled water to make 3.3% CeO 2 - Mica pearlescent pigment suspension, then heat and stir the suspension in a water bath at 90°C with a stirring speed of 200r / min; take 20.5ml of the standby diluent (concentration is 12.8%) and add 500ml of distilled water to dilute the concentration again to 0.54% TiCl 4 solution; prepare 800ml of urea solution with a concentration of 1.5%; first adjust the pH of the suspension to 2.5 with dilute hydrochloric acid, and simultaneously add CeO with a peristaltic pump 2 - TiCl is added dropwise to the suspension of mica pearlescent pigments 4 Solutions and urea solutions, TiCl 4 The dropping rate of the solution was 2.5 ml / min, and the dropping rate of the urea solution was changed to keep the pH value of the suspension at 2.5 in a wate...

example 3

[0024] at 40% CeO 2 - 5% TiO coated on mica pearlescent pigment 2 Film layer, first coated to obtain 40% CeO 2 - Mica pearlescent pigments. Weigh 10 grams of CeO 2 - Mica pearlescent pigment, add 500ml of distilled water to make 2.0% CeO 2 -The suspension of mica pearlescent pigment was heated and stirred in a water bath at 60°C, and the stirring speed was 500r / min; 1.1g of TiOSO was weighed 4 The solid was dissolved in 200ml of distilled water to make 0.55% TiOSO 4 solution; prepare 500ml of ammonia solution with a concentration of 1%; first adjust the pH of the suspension to 3.0 with dilute hydrochloric acid, and simultaneously add CeO with a peristaltic pump 2 - Mica pearlescent pigment suspension is added dropwise to TiOSO 4 Solutions and Ammonia Solutions, TiOSO 4 The titration rate of the solution was 0.8 ml / min, and the dropping rate of the aqueous ammonia solution was changed to keep the pH value of the suspension at 3.0 in a water bath at 60°C. When TiOSO 4 A...

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PUM

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Abstract

The invention relates to a pearl pigment technology, in particular to a composite mica cerium titanium pearl pigment and a preparation method thereof. CeO2-mica pearl pigment is a yellow pearl pigment which is obtained by cladding oxide CeO2 on the surface of mica pearl pigment by a liquid phase cladding method, but has poor glossiness. The composite mica cerium titanium pearl pigment comprises aCeO2-mica substrate on which TiO2 oxide is cladded, and the cladding rate of TiO2 is 1-20%. The surface glossiness of TiO2-CeO2-mica pearl pigment prepared by multi-layer cladding is much higher thanthat of the CeO2-mica pearl pigment, and the color of the yellow CeO2-mica pearl pigment is turned into bright yellow instead of being covered by the cladded CeO2, thus having better luster effect and color effect than the pearl pigment cladded with single-layer CeO2.

Description

Technical field [0001] The present invention relates to pearlescent pigment technology, especially composite mica-cerium-titanium pearlescent pigments and preparation methods. Background technique [0002] Pearlescent pigments are widely used in coatings, pigments, cosmetics and other industries. cO 2 -Mica pearlescent pigment is coated with oxide CeO on the surface of mica pearlescent pigment through liquid phase coating method 2 , a yellow pearlescent pigment was obtained, but its glossiness was not enough. Contents of the invention [0003] The purpose of the invention is to provide CeO with good gloss and the ability to increase yellow 2 - Composite mica-cerium-titanium pearlescent pigment with brightness and preparation method. [0004] Technical solution of the present invention: composite mica cerium titanium pearlescent pigment, including CeO 2 -Mica substrate, in CeO 2 -TiO coating on mica substrate 2 Oxide, TiO 2 The coverage rate is 1 to 20%. [0005] O...

Claims

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Application Information

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IPC IPC(8): C09C3/06C09C1/00
Inventor 钟盛文晏婷婷张骞
Owner JIANGXI UNIV OF SCI & TECH
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