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Preparation method of high-performance anti-fingerprint agent

An anti-fingerprint agent, high-performance technology, applied in the field of preparation of high-performance anti-fingerprint agents, can solve problems such as performance degradation and durability problems, and achieve the effects of increased hardness, firm bonding, and excellent lubricating feel

Inactive Publication Date: 2018-02-16
QUZHOU FLUORIDE & SILICON RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the hydrolyzable group of this type of compound only exists at one end of the molecule, there are problems in durability, and the performance will decrease significantly after long-term use.

Method used

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  • Preparation method of high-performance anti-fingerprint agent
  • Preparation method of high-performance anti-fingerprint agent
  • Preparation method of high-performance anti-fingerprint agent

Examples

Experimental program
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preparation example Construction

[0026] A kind of preparation method of high-performance anti-fingerprint agent of the present invention comprises the following steps:

[0027] (1): Under nitrogen protection, allyl perfluoropolyether (PFPE-CH 2 -CH=CH 2 ) in the fluoroether solution, add Pt catalyst, then add the siloxane compound containing silicon-hydrogen bond, reflux reaction for 6 to 8 hours, wash with methanol, and then remove the fluoroether solvent by distillation under reduced pressure to obtain the complete compound containing silicon-hydrogen bond Fluoropolyether silane compound (A), the structural formula is as follows:

[0028]

[0029] Allyl-terminated perfluoropolyether (PFPE-CH 2 -CH=CH 2 ) has a molecular weight of 2000 to 8000, and the structural formula is as follows:

[0030]

[0031] Where m is an integer of at least 1, n and l are each an integer of at least 0, and each repeating unit can be randomly combined.

[0032] Silicon-hydrogen bond-containing siloxane compounds are on...

Embodiment 1

[0047] (1): Under the protection of nitrogen, 20g terminal allyl perfluoropolyether (PFPE-CH 2 -CH=CH 2 , the molecular weight is 2000) in the fluoroether solution (3M 7200) of adding Pt catalyst, then adding 4.92g siloxane compound containing silicon-hydrogen bond, reflux reaction for 6 hours, washing with methanol, and removing the fluoroether solvent by distillation under reduced pressure to obtain 22g contains the perfluoropolyether silane compound (A) of silicon-hydrogen bond, and the structural formula of the siloxane compound containing silicon-hydrogen bond is represented by the following formula:

[0048]

[0049] (2): Using a three-necked flask device with a reflux condenser, add 20 g of perfluoropolyether silane compound (A) containing silicon-hydrogen bonds obtained in step (1), 2.82 g of methylvinyldichlorosilane, Pt Catalyst and 100ml fluoroether solution (3M 7200), stir and mix evenly, control the temperature at 70°C, add Pt catalyst, react for 8h, wash with...

Embodiment 2

[0055] (1): Under the protection of nitrogen, 20g terminal allyl perfluoropolyether (PFPE-CH 2 -CH=CH 2 , Molecular weight is 4000) in the fluoroether solution (3M 7100) of adding Pt catalyst, then adding 2.4g siloxane compound containing silicon-hydrogen bond, reflux reaction for 7 hours, washing with methanol, removing the fluoroether solvent by distillation under reduced pressure to obtain 21g contains the perfluoropolyether silane compound (A) of silicon-hydrogen bond, and the structural formula of the siloxane compound containing silicon-hydrogen bond is represented by the following formula:

[0056]

[0057] (2): Using a three-necked flask device with a reflux condenser, add 20 g of perfluoropolyether silane compound (A) containing silicon-hydrogen bonds obtained in step (1), 4.26 g of methylvinyldichlorosilane, Pt Catalyst and 100ml fluoroether solution (Solvay HT110), stir and mix evenly, control the temperature at 70°C, add Pt catalyst, react for 7h, wash with tet...

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Abstract

The invention discloses a preparation method of a high-performance anti-fingerprint agent. The preparation method comprises the following steps that firstly, allyl terminated perfluoropolyether reactswith a siloxane compound containing silicon-hydrogen bonds for obtaining a perfluoropolyether silane compound containing silicon-hydrogen bonds, the obtained product reacts with methyl vinyl dichlorosilane for obtaining perfluoropolyether-silane with dichlorosilane modified terminal groups, the obtained perfluoropolyether-silane with dichlorosilane modified terminal groups reacts with allyl magnesium bromide for obtaining terminal allyl modified perfluoropolyether-silane with polyfunctional groups, the obtained terminal allyl modified perfluoropolyether-silane with polyfunctional groups reacts with methyldichlorosilane for obtaining dichlorosilane modified perfluoropolyether-silane, dendritic terminal allyl modified perfluoropolyether-silane is obtained by repeated reaction; and then theobtained dendritic multi-functional perfluoropolyether-silane reacts with a siloxane compound containing silicon-hydrogen bonds for obtaining the dendritic perfluoropolyether alkoxy silane compound with polyfunctional groups. The anti-fingerprint agent prepared by the method provided by the invention has a good hydrophobic oleophobic property and excellent antifouling property, and has excellent bonding fastness to glass substrates, and the wear resistance and the durability are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of anti-fingerprint agent preparation, and in particular relates to a preparation method of high-performance anti-fingerprint agent. Background technique [0002] In recent years, touch panelization of screens, represented by mobile phone displays, is accelerating. However, the exposed state of the touch panel makes it easy to be polluted by fingerprints, skin oil, sweat, cosmetics, etc. during use, which affects the appearance and use. Therefore, in order to improve the appearance and recognition, there are more and more requirements for the technology of making fingerprints not easy to adhere to the display surface or the technology of easy to remove dirt. The surface is not easy to cause damage, and it must have good wear resistance. Thereby it is often necessary to spray an anti-fingerprint agent on the surface of the touch screen. [0003] Currently commonly used anti-fingerprint agents all contain p...

Claims

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Application Information

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IPC IPC(8): C08G77/46C09D183/12C09D5/16
CPCC08G77/46C09D5/1675C09D183/12
Inventor 郦聪李建田小平
Owner QUZHOU FLUORIDE & SILICON RES INST
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