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

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

Inactive Publication Date: 2012-07-11
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] Example 1: as figure 1 shown,

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

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

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

Embodiment 2

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

[0043] B, 5g silicon dioxide, 1g silane coupling agent KH 560 (Nanjing Shuguang Chemical Group Co., Ltd.), 0.5g stearic acid are added in the product of step A after mixing at room temperature; Average particle size 80nm;

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

Embodiment 3

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

[0047] B, 10g zirconium dioxide, 2g titanate coupling agent NDZ 201 (Nanjing Shuguang Chemical Group Co., Ltd.), 1g sodium stearate are added in the product of step A after mixing at room temperature; Ball milled 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 at 100°C. Then, the dried material is sent to a pulverizer for processing, and the barium sulfate-based multicomponent 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 multicomponent composite white pigment and a preparation method thereof. Background technique [0002] Titanium dioxide is a white pigment widely used in coatings, plastics, papermaking, chemical fibers, inks, rubber and other fields. Because titanium dioxide has excellent hiding power, whiteness, chemical stability, high light and thermal stability, weather resistance It has excellent properties such as stability, making it an excellent white pigment. [0003] At present, all countries are researching and exploring alternatives to titanium dioxide to reduce costs. U.S. Patent USP5248556 and Japanese Patent JP50123097 use composite silica-based 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 product Poor stability, once the film coating is broken during extrus...

Claims

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Application Information

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Patent Type & Authority Patents(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