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Surface anti-dirty treatment composition containing tetrafluoroethylene derived hydrofluorother

A technology of tetrafluoroethylene and antifouling treatment, which is applied in paints containing biocide, antifouling/underwater coatings, polyether coatings, etc., which can solve the problem that the compound coating does not show sufficient oil repellency and lubricity, and the production is environmentally friendly High pressure, complex production process and other problems, to achieve the effect of excellent solubility, cost reduction, and good substrate wettability

Active Publication Date: 2017-05-24
QUZHOU FLUORIDE & SILICON RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 3M has published several patents on the synthesis and application of perfluoropolyether siloxane (such as CN1998813320.2, CN200480025773.X, CN200780030231.5, etc.), but the perfluoropolyether group of the above-mentioned perfluoropolyether siloxane The molecular weight is low and the molecular chain is short, so that the compound coating does not show sufficient oil repellency and lubricity
However, perfluorobutyl methyl ether and perfluorobutyl ethyl ether are prepared by electrolytic fluorination process, the production process is complicated, and a lot of waste will be generated during the preparation process; therefore, the cost is high and the production environmental protection pressure is great

Method used

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  • Surface anti-dirty treatment composition containing tetrafluoroethylene derived hydrofluorother
  • Surface anti-dirty treatment composition containing tetrafluoroethylene derived hydrofluorother
  • Surface anti-dirty treatment composition containing tetrafluoroethylene derived hydrofluorother

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0131] Synthesis Example 1: (Monomer CH 2 =CHCH 2 OCH 2 PFPE 1 Synthesis of-F1)

[0132] In a three-necked flask device equipped with a reflux condenser and a constant pressure funnel, 500g of C4 and 1500ml of HFE-347(CF 3 CH 2 OCF 2 CF 2 H), adding 80 g of 20% NaOH solution as a catalyst under the protection of nitrogen, then adding 60 g of Al, reacting at reflux for 6 hours, washing with water, and distilling under reduced pressure to remove the solvent and residual water to obtain 510 g of F1.

Synthetic example 2

[0133] Synthesis Example 2 (Monomer CH 2 =CHCOOCH 2 PFPE 1 Synthesis of-F2)

[0134] In a four-necked reaction flask equipped with a stirrer, a constant temperature oil bath, a thermometer and a condenser, 1000g of C1, 30g of A2, an appropriate amount of water-carrying agent, a small amount of hydroquinone polymerization inhibitor and a small amount of p-toluenesulfonic acid catalyst are added. Under stirring, the temperature is raised to 120°C for esterification reaction. When the water in the water separator approaches the theoretical value, the esterification reaction is completed. Then, the water-carrying agent and the unreacted A2 were removed by normal pressure distillation and vacuum distillation, and then the catalyst and polymerization inhibitor were washed out by water, and dried in vacuum to obtain 993g F2.

Synthetic example 3

[0135] Synthesis Example 3 (Monomer CH 2 =C(CH 3 )COOCH 2 PFPE 1 Synthesis of-F3)

[0136] Using the same method as Synthesis Example 2, 1005gF3 was obtained by reacting 1000gC1 with 45gA3.

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PUM

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Abstract

The invention discloses a surface anti-dirty treatment composition containing tetrafluoroethylene derived hydrofluorother. The surface anti-dirty treatment composition is prepared from, by mass, 0.01-19.99 parts of comb typperfluorinated polyether, 0.01-19.99 parts of trimethoxysilane-terminated perfluorinated polyether, 0-5 parts of other siloxane or perfluorinated polyether, 80-99.9 parts of tetrafluoroethylene derived hydrofluorother, wherein the total mass fraction of the comb typperfluorinated polyether, the trimethoxysilane-terminated perfluorinated polyether, other siloxane or perfluorinated polyether and the tetrafluoroethylene derived hydrofluorother is 0.1-20 parts. The surface anti-dirty treatment composition is excellent in anti-dirty performance and good in durability, the adopted tetrafluoroethylene derived hydrofluorother replacing a solvent is safe, environment-friendly and excellent in dissolving property, and the cost is reduced greatly.

Description

Technical field [0001] The invention belongs to the technical field of surface antifouling treatment, and relates to a surface antifouling treatment composition containing tetrafluoroethylene-derived hydrofluoroether. Background technique [0002] The transparent optical devices of touch electronic display devices (such as mobile phone glass screens, etc.) are often in contact with fingers and are easily contaminated by fingerprints, sweat, oil stains, etc., and once the dirt is formed, it is difficult to remove without solvents. Use solvents There is a risk of damaging the display device; on the other hand, dirt also affects the visual perception of the display device. In order to prevent dirt from contaminating the display device and possible damage to the device in the process of removing the dirt, it is of great significance to develop a surface coating with anti-fouling and easy decontamination functions. [0003] In order to achieve the above objectives, researchers have dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D171/00C09D5/16C09D7/00
Inventor 裴金东李建郦聪
Owner QUZHOU FLUORIDE & SILICON RES INST
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