Perfluoropolyether silane, preparation method of perfluoropolyether silane and application of perfluoropolyether silane

A technology of fluoroaminosilane and reaction, which is applied in the field of perfluoropolyether silane and its preparation, can solve the problems of unrealized industrialization, and achieve the effect of low surface energy, good anti-fingerprint, and good anti-fingerprint performance

Active Publication Date: 2015-12-23
BEIJING LAINUOTAIKE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the synthesis and application of domestic all-polyether is

Method used

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  • Perfluoropolyether silane, preparation method of perfluoropolyether silane and application of perfluoropolyether silane
  • Perfluoropolyether silane, preparation method of perfluoropolyether silane and application of perfluoropolyether silane
  • Perfluoropolyether silane, preparation method of perfluoropolyether silane and application of perfluoropolyether silane

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Embodiment 1

[0095] 1) Add 2.50 g of tetraglyme, 2.78 g of RbF, and 900 g of perfluorooxetane in a high-pressure stainless steel reactor equipped with a stirrer, cooling jacket, thermometer and pressure gauge, and pass through at -30 Carry out anionic polymerization reaction at ℃ for 18 hours, and the HFPO oligomer shown in formula a is obtained after the reaction is completed;

[0096]

[0097] 2) After adding 5 grams of methanol to the HFPO oligomer shown in the obtained formula a in step 1), stir and carry out esterification reaction at room temperature for 12 hours to obtain the HFPO oligomer methyl ester shown in formula b;

[0098]

[0099] Gel permeation chromatography (GPC) analysis shows that the weight average molecular weight of the HFPO oligomer methyl ester is about 8400 and n is 54.

[0100] 3) by drying in a vacuum to remove unreacted methanol, and adding 1,3-bis(trifluoromethyl)benzene to the HFPO oligomer methyl ester obtained in step 2) as a reaction solvent. Then,...

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Abstract

The invention discloses perfluoropolyether silane, a preparation method of the perfluoropolyether silane and application of the perfluoropolyether silane. The perfluoropolyether silane has a structural general formula shown as a formula I. Compared with a common perfluoropolyether material, the perfluoropolyether silane has the advantages that no trifluoromethyl branch chain exists; the perfluoropolyether material shown as the formula I provided by the invention can be more regularly arranged on the surface of a substrate, so that lower surface energy can be realized on the surface; further, the surface of the substrate has a better anti-fingerprint and easy-to-clean effect. Therefore compared with the prior art, the perfluoropolyether silane has better anti-fingerprint performance.

Description

technical field [0001] The invention belongs to the field of materials, and relates to a perfluoropolyether silane, a preparation method and application thereof. Background technique [0002] As we all know, fluorine-containing materials have low surface energy, unique optical properties, chemical stability, dielectric properties and other characteristics, so they have extensive and unique applications in many products and fields. Our electronic products represented by smartphones and tablet computers have grown rapidly in recent years, have a huge consumer market, and the speed of product updates continues to accelerate. This brings a huge market for anti-fingerprint products. Take the most representative mobile phone market with the largest capacity as an example. The annual global mobile phone shipments are about 1.2 billion units, of which about 2 / 3 of the shipments, or about 800 million units, come from high-end brands. Calculated by using 1g of this product for ever...

Claims

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Application Information

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IPC IPC(8): C08G65/336C08G65/26C08G65/331C09D171/02C09D5/16
Inventor 解荡陈振昌张红娟
Owner BEIJING LAINUOTAIKE SCI & TECH
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