Preparation method of high-performance fingerprint-resistant agent

An anti-fingerprint agent, high-performance technology, applied in the fields of architectural glass, touch screen, optical glass, can solve problems such as performance degradation and durability, and achieve the effect of improving hardness, firm bonding, and improving bonding fastness

Active Publication Date: 2016-11-09
QUZHOU FLUORIDE & SILICON RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Examples

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preparation example Construction

[0027] A kind of preparation method of high-performance anti-fingerprint agent of the present invention comprises the following steps:

[0028] 1) Under the protection of nitrogen, NaOH solution is added to the fluoroether solution of hydroxyl-terminated perfluoropolyether (PFPE-OH) as a catalyst. The molecular weight of hydroxyl-terminated perfluoropolyether (PFPE-OH) is 2000-8000, and the structural formula is as follows Show:

[0029]

[0030] Wherein m is an integer of at least 1, n and I are each an integer of at least 0, the concentration of the NaOH solution is 20% to 50%, and the molar ratio of NaOH to hydroxyl-terminated perfluoropolyether is (5:1) to (20: 1), then add allyl bromide, reflux for 6 to 8 hours, wash with water, and distill off the solvent and residual water under reduced pressure. One or more mixtures to obtain allyl-terminated perfluoropolyether, the reaction equation is as follows;

[0031]

[0032] 2) Use a three-necked flask device with a ref...

Embodiment 1

[0041] 1) In the three-necked flask device that reflux condenser and constant pressure funnel are equipped with, add 20g hydroxyl-terminated perfluoropolyether (PFPE-OH, molecular weight is 2500) and 7200 hydrofluoroether of 100ml 3M Company, under nitrogen protection Add 8 g of 20% NaOH solution as a catalyst, then add 3.84 g of allyl bromide, reflux for 6 hours, wash with water, and distill under reduced pressure to remove the solvent and residual water to obtain 18.6 g of allyl-terminated perfluoropolyether;

[0042] 2) Use a three-necked flask device with a reflux condenser and a constant pressure funnel, add 50ml of a 7300 solution of 12.4g of hydrogen-containing silicone oil to the constant pressure funnel, and add 10g of a 7200 solution of allyl perfluoropolyether to the three-necked flask. 50ml of the solution, stirred and mixed evenly, controlled the temperature at 80°C, added 0.1g of chloroplatinic acid catalyst, slowly added hydrogen-containing silicone oil dropwise,...

Embodiment 2

[0045] 1) In a three-necked flask device equipped with a reflux condenser and a constant pressure funnel, add 20g of hydroxyl-terminated perfluoropolyether (PFPE-OH, with a molecular weight of 5000) and 100ml of 7300 hydrofluoroether from 3M Company, under nitrogen protection Add 8 g of 10% NaOH solution as a catalyst, then add 3.84 g of allyl bromide, reflux for 6 hours, wash with water, and distill under reduced pressure to remove the solvent and residual water to obtain 19.8 g of allyl-terminated perfluoropolyether;

[0046] 2) Use a three-necked flask device with a reflux condenser and a constant pressure funnel, add 50ml of a 7300 solution of 12.4g of hydrogen-containing silicone oil to the constant pressure funnel, and add 10g of a 7300 solution of allyl perfluoropolyether to the three-necked flask. 50ml of the solution, stirred and mixed evenly, controlled the temperature at 100°C, added 0.1g of chloroplatinic acid catalyst, slowly added hydrogen-containing silicone oil ...

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Abstract

The invention discloses a preparation method of a high-performance fingerprint-resistant agent. The preparation method includes the following steps that hydroxyl-terminated perfluorinated polyether and allyl bromide react to obtain allyl-terminated perfluorinated polyether; allyl-terminated perfluorinated polyether and hydrogen-containing silicone oil are subjected to a layer adding reaction through silicone hydrogen, and perfluorinated polyether-hydrogen-containing silicone oil (unreacted hydrogen still exists in silicone oil) is obtained; the obtained product and allyl siloxane continue to be subjected to a silicone hydrogen water adding reaction to obtain a needed target product pectinate perfluorinated polyether-siloxane; then pectinate perfluorinated polyether-siloxane is prepared into the fingerprint-resistant agent. The prepared fingerprint-resistant agent has the advantages of being good in hydrophobic and oleophobic performance, excellent in anti-fouling property and good in fingerprint easy-to-move property, a fingerprint-resistant coating and a glass base material are high in bonding force, the product is good in abrasion resistance, and compared with the prior art, the durability and abrasion resistance of the fingerprint-resistant agent are greatly improved.

Description

technical field [0001] The invention relates to the fields of touch screens, optical glass, architectural glass, etc., and in particular to a comb-shaped perfluoropolyether-siloxane obtained by reacting hydroxyl-terminated perfluoropolyether, hydrogen-containing silicone oil and allyl siloxane Alkanes can be formulated into high-performance anti-fingerprint agents. 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. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D187/00C09D5/16C08G81/00
CPCC08G81/00C09D5/1662C09D187/00
Inventor 郦聪李建刘国清
Owner QUZHOU FLUORIDE & SILICON RES INST
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