Barium sulfate based polybasic composite white pigments and method for preparing same

A multi-component composite, white pigment technology, applied in inorganic pigment processing, chemical instruments and methods, fibrous fillers, etc., can solve the problems of high manufacturing cost, shortage of high-quality titanium resources, high sales price, etc., to achieve low production cost, Good dispersibility and scratch resistance, fine particle size effect

Inactive Publication Date: 2008-08-27
FOSHAN ONMILLION NANO MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Due to the increasing shortage of high-quality titanium resources and high manufacturing costs, the sales price in the market is very expensive

Method used

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  • Barium sulfate based polybasic composite white pigments and method for preparing same
  • Barium sulfate based polybasic composite white pigments and method for preparing same
  • Barium sulfate based polybasic composite white pigments and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: as figure 1 as shown,

[0038] A. Weigh 100g of barite ore powder with an average particle size of 1μm and 900mL of distilled water, add them into the reactor, then add 0.5g of sodium polyphosphate, and then stir. After the barite ore powder is uniformly dispersed, add Sulfuric acid adjusts the pH to 5;

[0039] B. Mix 1g of titanium dioxide, 0.5g of silane coupling agent KH 550 (Nanjing Shuguang Chemical Group Co., Ltd.), and 0.1g of stearic acid into the product of step A at room temperature; Particle size 50nm;

[0040] C. Put the ball-milled product into a plate filter press to remove water, and then dry it at 60°C. Then, the dried material is sent into a pulverizer for processing, and the barium sulfate-based multi-element composite white pigment can be prepared.

Embodiment 2

[0042] A. Weigh 100g of barite ore powder and 400mL of distilled water with an average particle size of 5 μm respectively, add them to the reactor, add 1g of sodium hexametaphosphate, and then stir. After the barite ore powder is uniformly dispersed, add sulfuric acid to dissolve the pH adjusted to 6;

[0043] B, 5g silicon dioxide, 1g silane coupling agent KH 560 (Nanjing Shuguang Chemical Group Co., Ltd.), 0.5g stearic acid, after mixing uniformly at room temperature, add in the product of step A; then put into a ball mill and ball mill until Average particle size 80nm;

[0044] C. Put the ball-milled product into a plate filter press to remove water, and then dry it at 80°C. Then, the dried material is sent into a pulverizer for processing, and the barium sulfate-based multi-element composite white pigment can be prepared.

Embodiment 3

[0046] A. Weigh 100g of barite ore powder with an average particle size of 10μm and 250mL of distilled water, add them into the reactor, add 2g of sodium polyacrylate, and then stir. After the barite ore powder is dispersed evenly, add a certain amount of Sulfuric acid, stir evenly, adjust the pH value to 7;

[0047] B. Mix 10g zirconium dioxide, 2g titanate coupling agent NDZ 201 (Nanjing Shuguang Chemical Group Co., Ltd.), and 1g sodium stearate into the product of step A after mixing uniformly at room temperature; put the composite slurry Ball mill in a sand mill to an average particle size of 1 μm;

[0048] C. Put the ball-milled product into a plate filter press to remove water, and then dry it at 100°C. Then, the dried material is sent into a pulverizer for processing, and the barium sulfate-based multi-element composite white pigment can be prepared.

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Abstract

The invention discloses barium sulfate group multi-composite white pigment, which is characterized in that the invention comprises components with parts by weight: 100 parts of powder with barium sulfate, 0.1-10 parts of dispersant, 0.1-90 parts of powder with high covering power, 0.1-10 parts of modifier and 0.01-20 parts of lubricating agent. The barium sulfate group multi-composite white pigment has fine and even particle diameter, high whiteness, excellent dispersing ability, strong covering powder and wonderful weather-ability, and has the advantages of low production cost, simple technique and suitable industrial production.

Description

technical field [0001] The invention relates to a barium sulfate-based multi-component composite white pigment and a preparation method thereof. Background technique [0002] Titanium dioxide is a white pigment widely used in coatings, plastics, papermaking, chemical fiber, ink, rubber and other fields. Due to its excellent hiding power, whiteness, chemical stability, high light and heat stability, and weather resistance Excellent properties such as anti-corrosion properties make it an excellent white pigment. [0003] At present, all countries are researching and exploring substitutes for titanium dioxide to reduce costs. U.S. Patent USP5248556 and Japanese Patent JP50123097 use composite silica titanium dioxide for papermaking; British Patent GB1532521 uses composite titanium dioxide for latex paint; but they all use coating technology, resulting in complex manufacturing processes and low product quality. The stability is poor. Once the film coat is broken during extrusi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/00
Inventor 陈焰杨珊艳刘晓荣何星辉郑明东李亚东刘学习
Owner FOSHAN ONMILLION NANO MATERIALS
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