Preparation technology of ethylhexyl salicylate emulsion

A technology of isooctyl salicylate and a preparation process, applied in the field of chemical materials, can solve the problems of poor thermal imaging effect, affecting work efficiency, difficult continuous production, etc., and achieves clear coating, low labor intensity, and thermal image. good quality effect

Inactive Publication Date: 2019-08-02
南阳九鼎材料科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the characteristics of solid isooctyl salicylate are very easy to stick with the temperature rise during the milling process, and block the filter screen and the grinding disc. After the blockage, the mill must be shut down for cleaning. The process is very troublesome, and continuous production is difficult, which seriously affects Work efficiency, and the effect is poor when applied to thermal imaging

Method used

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  • Preparation technology of ethylhexyl salicylate emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation technology of isooctyl salicylate emulsion, comprises the following steps:

[0024] (1) Pulverization: use a pulverizer to pulverize the massive solid isooctyl salicylate into small pieces with a particle size of ≤2cm;

[0025] (2) Freezing: cool the small pieces of material crushed in step (1) to below 5°C in a freezer or cold storage, and keep for 30 minutes;

[0026] (3) Grinding: Grinding the material obtained in step (2) into a powder with a particle size of ≤0.5mm by using a pulverizer;

[0027] (4) Grinding: Mix the powder obtained in step (3), an aqueous adhesive solution, a dispersant and water, and grind in a grinder for 4 hours to obtain an isooctyl salicylate emulsion. The isooctyl salicylate emulsion is The weight of particles with a medium particle size ≤ 1 μm accounts for more than 90%.

[0028] The grinding speed of the pulverizer described in step (3) is 55kg / h.

[0029] The weight ratio of powder, adhesive aqueous solution, dis...

Embodiment 2

[0033] A kind of preparation technology of isooctyl salicylate emulsion, comprises the following steps:

[0034] (1) Pulverization: use a pulverizer to pulverize the massive solid isooctyl salicylate into small pieces with a particle size of ≤2cm;

[0035] (2) Freezing: cool the small pieces of material crushed in step (1) to below 5°C in a freezer or cold storage, and keep for 50 minutes;

[0036] (3) Grinding: Grinding the material obtained in step (2) into a powder with a particle size of ≤0.5mm by using a pulverizer;

[0037] (4) Grinding: Mix the powder obtained in step (3), an aqueous adhesive solution, a dispersant and water, and grind in a grinder for 6 hours to obtain an isooctyl salicylate emulsion. The isooctyl salicylate emulsion is The weight of particles with a middle particle size ≤ 1 μm accounts for more than 90%.

[0038] The grinding speed of the pulverizer described in step (3) is 50kg / h.

[0039] The weight ratio of powder, adhesive aqueous solution, dis...

Embodiment 3

[0043] A kind of preparation technology of isooctyl salicylate emulsion, comprises the following steps:

[0044] (1) Pulverization: use a pulverizer to pulverize the massive solid isooctyl salicylate into small pieces with a particle size of ≤2cm;

[0045] (2) Freezing: cool the small pieces of material crushed in step (1) to below 5°C in a freezer or cold storage, and keep for 40 minutes;

[0046] (3) Grinding: Grinding the material obtained in step (2) into a powder with a particle size of ≤0.5mm by using a pulverizer;

[0047] (4) Grinding: Mix the powder obtained in step (3), an aqueous adhesive solution, a dispersant and water, and grind in a grinder for 5 hours to obtain an isooctyl salicylate emulsion, and the isooctyl salicylate emulsion is The weight of particles with a middle particle size ≤ 1 μm accounts for more than 90%.

[0048] The grinding speed of the pulverizer described in step (3) is 50kg / h.

[0049] The weight ratio of powder, adhesive aqueous solution,...

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Abstract

The invention discloses a preparation method of ethylhexyl salicylate emulsion. The method comprises the following steps: (1) crushing, namely, crushing blocky solid ethylhexyl salicylate into small blocky materials through a crushing machine; (2) freezing, namely, freezing the small blocky materials crushed in step (1) into a refrigerator or a cold storage; (3) powdering, namely, grinding the materials obtained in step (2) into powder through a powdering machine; (4) milling, namely, mixing the powder obtained in step (3), a binder water solution, a dispersant and water; and milling through amilling machine to obtain the ethylhexyl salicylate emulsion. The ethylhexyl salicylate remains good and long-lasting dispersing stage, and the obtained heat-sensitive image is high in quality.

Description

technical field [0001] The technical field of chemical materials of the present invention particularly relates to a preparation process of isooctyl salicylate emulsion. Background technique [0002] At present, solid isooctyl salicylate is widely used in thermal imaging materials. It is a very key color developer in thermal imaging materials. The state of solid isooctyl salicylate has a great influence on the developed image. The quality has a very important impact. The smaller the particles, the greater the density of the image after imaging, and the finer and richer the image level. Therefore, the solid isooctyl salicylate must be ground into tiny particles when it is used. The basic process is as follows: : Solid crushing→milling→grinding, that is, using a pulverizer to crush the bulk solid into granular, and then using a pulverizer to grind the pulverized granular material into a powder, and finally grinding according to a certain process method to become the desired emu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D129/04C09D133/02C09D5/26C09D7/63C09D101/28C09D121/00
CPCC09D5/26C09D7/63C09D101/284C09D101/286C09D121/00C09D129/04C09D133/02C08K5/20C08K5/1345C08K5/41C08K5/42
Inventor 燕明洋高景宏刘旭山祝玉成马鹏陆迪刘冲
Owner 南阳九鼎材料科技股份有限公司
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