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Method for detecting uniformity of organic coating of special titanium dioxide for plastics

A detection method, titanium dioxide technology, applied in the direction of weighing by removing certain components, can solve the problem that the uniformity detection method cannot meet the short-term mass screening or batch inspection work, and achieve good application prospects and convenient uniformity , the effect of easy operation

Inactive Publication Date: 2021-08-13
攀钢集团重庆钒钛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the current uniformity detection method of the organic coating of titanium dioxide specially used for plastics cannot satisfy the problem of a large number of screening or batch inspection work in a short time

Method used

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  • Method for detecting uniformity of organic coating of special titanium dioxide for plastics
  • Method for detecting uniformity of organic coating of special titanium dioxide for plastics
  • Method for detecting uniformity of organic coating of special titanium dioxide for plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Use the shrinkage method to sample a titanium dioxide product A for plastics, weigh 2.00g of the sample, pour it into a beaker filled with 250ml of tap water, and number it 1#, 2#, 3#, and mix it with a glass rod. Observe the hydrophobicity of three groups of parallel samples, the results show that the parallel samples of the samples are floating on the water surface and are hydrophobic; then weigh m 0 =5.0000g sample and crucible, and numbered 1`#, 2`# and 3`#, placed in a muffle furnace at 300°C and heated for 120min to constant weight, record the mass m of the sample after constant weight 1 . Calculate the volatile content of 1`#, 2`# and 3`# parallel samples respectively, and if the change degree X of the volatile content calculated by the three groups of experiments is ≤ 1%, then the organic treatment package of the titanium dioxide specially used for plastics can be evaluated. The film uniformity is good.

[0026]

[0027] It can be seen from the above table ...

Embodiment 2

[0029] Sampling of a special titanium dioxide product B for plastics was carried out by the reduction and division method, and 5.00g of the samples were weighed and poured into beakers filled with 250ml of tap water, and numbered 1#, 2#, 3#, and mixed with a glass rod. Observe the hydrophobicity of three groups of parallel samples, the results show that the parallel samples of the samples are floating on the water surface and are hydrophobic; then weigh m 0 =5.0000g sample and crucible, and numbered 1`#, 2`# and 3`#, placed in a muffle furnace at 300°C and heated for 120min to constant weight, record the mass m of the sample after constant weight 1 . Calculate the volatile content of 1`#, 2`# and 3`# parallel samples respectively, and if the change degree X of the volatile content calculated by the three groups of experiments is ≤ 1%, then the organic treatment package of the titanium dioxide specially used for plastics can be evaluated. The film uniformity is good.

[0030]...

Embodiment 3

[0033] Sampling of a special titanium dioxide product C for plastics was carried out by the method of reduction and division, and 2.00g samples were weighed and poured into a beaker filled with 250ml tap water, and numbered as 1#, 2#, 3#, and mixed with a glass rod. Observe the hydrophobicity of three groups of parallel samples, the results show that the parallel samples of the samples are floating on the water surface and are hydrophobic; then weigh m 0 =5.0000g sample and crucible, and numbered 1`#, 2`# and 3`#, placed in a muffle furnace at 300°C and heated for 120min to constant weight, record the mass m of the sample after constant weight 1 . Calculate the volatile content of 1`#, 2`# and 3`# parallel samples respectively, and if the change degree X of the volatile content calculated by the three groups of experiments is ≤ 1%, then the organic treatment package of the titanium dioxide specially used for plastics can be evaluated. The film uniformity is good.

[0034] ...

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Abstract

The invention belongs to the technical field of conventional performance detection of special titanium dioxide for plastics, and particularly relates to a detection method for rapidly judging the uniformity of the organic coating of special titanium dioxide for plastics. In order to solve the technical problem that the existing method for detecting the uniformity of the organic coating of special titanium dioxide for plastics cannot meet the requirements of short-time mass discrimination or batch inspection, the invention provides the detection method for judging the uniformity of the organic coating of special titanium dioxide for plastics. The detection method comprises the steps of uniformly mixing a sample and water, and if titanium dioxide floats on the water surface, indicating that the sample is hydrophobic and qualified; and heating the qualified sample to constant weight, calculating the percentage X of the mass difference of the sample before and after heating to constant weight and the mass of the sample before heating to constant weight, and if X is less than or equal to 1%, indicating that the sample is good in uniformity. The method can be used for quickly and conveniently judging the uniformity of the organic coating of special titanium dioxide for plastics, has the characteristics of simplicity and convenience in operation, low cost and high accuracy, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of conventional performance detection of titanium dioxide special for plastics, and in particular relates to a detection method for quickly determining the uniformity of organic coatings of titanium dioxide special for plastics. Background technique [0002] Titanium dioxide is a white inorganic pigment with stable chemical properties. It is considered to be a white pigment with better performance in the world. It is widely used in coatings, plastics, paper and other industries. In the field of plastics, the uniformity of the organic coating of titanium dioxide for plastics is a very critical process index, which directly affects the application performance of subsequent titanium dioxide products. [0003] The so-called organic coating of titanium dioxide is to coat various surfactants or additives on the surface of titanium dioxide particles, which can effectively improve the surface energy, surface wettabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 徐庭敏柯良辉周俊和柳
Owner 攀钢集团重庆钒钛科技有限公司
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