A kind of compound with anti-pollution effect and preparation method thereof

A compound and anti-pollution technology, applied in anti-fouling/underwater coatings, biocide-containing paints, coatings, etc., can solve the problems of high cost, difficult handling, and difficult glass surface adhesion, etc., to achieve increased smoothness, Wide application prospects and the effect of shortening the reaction time

Active Publication Date: 2020-05-01
ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned patent uses environmentally friendly perfluoropolyether compounds as raw materials, but does not introduce silicon-containing "bridge" groups, so it is not easy to adhere to the glass surface; in addition, due to the introduction of multiple amide groups The compound requires quite a lot of steps, and it is difficult to deal with after purification and separation, so the cost is extremely high, which limits its application

Method used

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  • A kind of compound with anti-pollution effect and preparation method thereof
  • A kind of compound with anti-pollution effect and preparation method thereof
  • A kind of compound with anti-pollution effect and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment relates to a preparation method of an anti-pollution compound, comprising the steps of:

[0042] 1) Under anhydrous and oxygen-free conditions, add 80g perfluoropolyether (1mol) (HOCH 2 PFPECH 2 OH), then add 400g 3M 7200 fluorine-containing solvent to dissolve, then slowly add 6.15g 3-isocyanatopropyltrimethoxysilane (1.5mol) dropwise through the dropping funnel at room temperature, stir for several minutes and then dropwise add 4 Drip condensation agent dibutyltin dilaurate reagent (DBTDL);

[0043] 2) Raise the temperature to 50 degrees Celsius to react and conduct IR detection every half an hour to detect whether 3369 disappears on the infrared spectrum and whether there are signals from 1235 and 1380. After 3369 completely disappears, continue the reaction for 1 hour. The low-boiling point 3M 7200 fluorine-containing solvent and the raw material 3-isocyanatopropyltrimethoxysilane were distilled off under reduced pressure, and the product was washe...

Embodiment 2

[0045] This embodiment relates to a preparation method of an anti-pollution compound, comprising the steps of:

[0046] 1) Under anhydrous and oxygen-free conditions, first add 80g of perfluoropolyether (HOCH 2 PFPECH 2 OH) (1mol), then add 400g 3M 7200 fluorine-containing solvent to dissolve, then slowly add 8.2g 3-isocyanatopropyltrimethoxysilane (2.0mol) dropwise through the dropping funnel at room temperature, stir for several minutes and then Add 4 drops of condensing agent dibutyltin dilaurate reagent (DBTDL);

[0047] 2) Raise the temperature to 50 degrees Celsius to react and conduct IR detection every half an hour to detect whether 3369 disappears on the infrared spectrum and whether there are signals from 1235 and 1380. After 3369 completely disappears, continue the reaction for 1 hour. The low-boiling point 3M 7200 fluorine-containing solvent and the raw material 3-isocyanatopropyltrimethoxysilane were distilled off under reduced pressure, and the product was wash...

Embodiment 3

[0049] This embodiment relates to a preparation method of an anti-pollution compound, comprising the steps of:

[0050] 1) Under anhydrous and oxygen-free conditions, first add 80g of perfluoropolyether (HOCH 2 PFPECH 2 OH) (1mol), then add 400g 3M 7200 fluorine-containing solvent to dissolve, then slowly add 10.3g 3-isocyanatopropyltrimethoxysilane (2.5mol) dropwise through the dropping funnel at room temperature, stir for several minutes and then Add 4 drops of condensing agent dibutyltin dilaurate reagent (DBTDL);

[0051] 2) Raise the temperature to 50 degrees Celsius to react and conduct IR detection every half an hour to detect whether 3369 disappears on the infrared spectrum and whether there are signals from 1235 and 1380. After 3369 completely disappears, continue the reaction for 1 hour. The low-boiling point 3M 7200 fluorine-containing solvent and the raw material 3-isocyanatopropyltrimethoxysilane were distilled off under reduced pressure, and the product was was...

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Abstract

The invention relates to a compound with an anti-pollution effect. The compound is PFPE(CH2OCONCH2CH2CH2Si(OR)3)2, wherein the PFPE is -(CF2O)x-(CF2CF2O)y-, and R is methyl or ethyl. According to thecompound disclosed by the invention, by virtue of tests, the contact angle of the compound to water reaches 114 degrees after film formation on a glass slide; and the compound has a contact angle of 72 degrees to n-hexadecane, and belongs to waterproof and oil-repellent materials. Meanwhile, the film-formed glass slide can be rubbed by steel wool under a load of 1kg for 10000 times without obviously reducing the waterproof and oil-repellent properties, so the glass slide has excellent rub resistance. By testing the dynamic friction coefficient, the dynamic friction coefficient reaches 0.03, the smoothness reaches an international level, and the compound also has wide application prospects in the field of other high-end optical device.

Description

technical field [0001] The invention relates to the technical field of anti-pollution on the surface of a touch screen, in particular to a compound with an anti-pollution effect. Background technique [0002] 3C industry, tempered glass, mobile phone touch screen, digital camera touch screen, flat panel display, optical glass lens, clock, office equipment and other surfaces are frequently touched and used frequently, and are often easily polluted by fingerprints, sweat, grease, and smeared cosmetics , and easily scratched by hard objects. The surface with anti-reflective coating is very sensitive to dirt, fingerprints, etc. Once it is polluted, it often affects the appearance and use effect. At the same time, these dirt are difficult to clean and require special treatment to restore the ideal state. Especially in demanding applications such as handheld electronics and displays, the challenge is to obtain a dirt-resistant surface with long-term durable properties. An effect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/71C08G18/50C08G65/336C09D5/16
CPCC08G18/5015C08G18/718C08G65/336C09D5/1637
Inventor 刘波吕太勇罗源军张鸣李斌
Owner ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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