Method for testing particle size of specific plastic titanium dioxide by particle size analyzer

A titanium dioxide and particle size analyzer technology, applied in particle size analysis, measuring devices, scientific instruments, etc., can solve the problems of difficult dispersion of titanium dioxide, inability to truly reflect the quality of intermediate products and finished products, and unfavorable production and processing of titanium dioxide. To achieve the effect of good dispersion performance

Inactive Publication Date: 2017-08-18
PANGANG GROUP RESEARCH INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, titanium dioxide is difficult to disperse in the test methods of the prior art, and the measured results are quite different from the real results, which cannot truly reflect the quality of intermediate products and finished products, which is not conducive to guiding the production and processing of titanium dioxide.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 0.1g of DuPont R104, prepare solvent, choose acetone and ethanol as the solvent, the mass fraction of acetone is 60%, mix the two fully, take 50mL, add the plastic titanium dioxide product that has been taken, add the dispersant, choose polyethylene glycol Alcohol 6000 is used as a dispersant, and the amount of dispersant is 0.3%. The solvent is dispersed under ultrasound for 15 minutes, left to stand for 1 minute, and then ultrasonically dispersed for 15 minutes. Samples are taken for testing and particle size is measured.

[0032] The average particle size of the product is 244nm.

Embodiment 2

[0034] Take Jintai CR200 0.1g, prepare solvent, choose acetone and ethanol as solvent, the mass fraction of acetone is 60%, mix the two fully, take 50mL, add the plastic titanium dioxide product that has been taken, add dispersant, choose glycerine Alcohol and polyethylene glycol 6000 are used as dispersants, and the dosage of dispersant is 0.4%. The solvent is dispersed under ultrasonic for 15 minutes, left to stand for 1 minute, and ultrasonically dispersed for 15 minutes again. Samples are taken for testing and particle size is measured.

[0035] The average particle size of the product is 273nm.

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Abstract

The invention discloses a method for testing particle size of specific plastic titanium dioxide by a particle size analyzer, and especially relates to a method for testing the particle size of specific plastic titanium dioxide by the particle size analyzer in metallurgy and chemical engineering domains. The method for testing the particle size of specific plastic titanium dioxide by the particle size analyzer includes steps of A, adding titanium dioxide in a solvent and preparing to be titanium dioxide solution; B, adding dispersing agent in the titanium dioxide solution; C, dispersing treatment; D, performing sampling detection and testing the particle size; controlling concentration of titanium dioxide, wherein the amount of titanium dioxide added in step A is 0.1-0.5g, and the solvent amount is 50 mL. Through selecting solvent and adjusting the dispersing treatment technique, the method has good dispersing performance, and the solution benefiting to test is obtained; the testing result is approached to the real particle size of a product.

Description

technical field [0001] The invention relates to a method for testing the particle size of titanium dioxide special for plastics by a particle size meter, in particular to a method for testing the particle size of titanium dioxide special for plastics by a particle size meter in the field of metallurgy and chemical industry. Background technique [0002] There are many factors affecting the pigment performance of titanium dioxide, among which particle size and distribution are one of the most important influencing factors. The particle size of titanium dioxide particles seriously affects its scattering coefficient. When the particle size is 200nm, the scattering coefficient is the highest. At this time, the pigment's decolorization power and hiding rate are the best, and the whiteness and gloss are the best. However, when the particle size becomes smaller, the weather resistance will decrease accordingly. For titanium dioxide with excellent pigment performance, the particle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02
CPCG01N15/02G01N2015/0277
Inventor 吕波成朝艳吴小平刘勇王海波伍良英
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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