Fluorescent electronic protective paint and preparation method thereof

A protective coating, fluorescent technology, applied in luminescent coatings and other directions, can solve the problems of performance degradation, long preparation time, and difficult coating, and achieve strong adaptability and durability, stable fluorescence visibility, good environmental friendliness sexual effect

Inactive Publication Date: 2018-03-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for electronic components, such as printed circuit boards, electronic components, touch screen components, etc. If there is no proper protection, electronic equipment is prone to short circuit, performance degradation and equipment failure, and it is difficult to operate for a long time with high reliability
[0003] In the prior art, acrylic resin, polyurethane, and epoxy resin are often used to waterproof electronic components, and there are problems such as difficult coating, long processing time, and low efficiency.
The fluorine-containing acrylate polymers that have been reported so far are mostly used for solution polymerization, which takes a long time to prepare, and often uses fluorine-based solvents, which pollutes the environment and is expensive.
In addition, although the existing electronic waterproof coating composition can achieve a good hydrophobic effect, it is not suitable for detection because the coating is thin and transparent, and there are problems such as quality control.

Method used

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  • Fluorescent electronic protective paint and preparation method thereof
  • Fluorescent electronic protective paint and preparation method thereof
  • Fluorescent electronic protective paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] (1) 0.2g CTAB (a kind of quaternary ammonium salt surfactant that is a cationic emulsifier), 0.2g AE09 (a kind of fatty alcohol polyoxyethylene ether that is a co-emulsifier) ​​are mixed with 40g water, Stir at 10°C for 30 min to obtain an emulsifier solution.

[0037] (2) 4g perfluorohexaneethyl methacrylate (C6MA), 5g octadecyl acrylate, 0.01g dopamine methacrylamide, 0.001g 1,8-naphthalimide acrylate and step (1) to obtain The emulsifier solution was mixed, vigorously stirred for 30 minutes, and then treated with an ultrasonic cell pulverizer for 5 minutes to obtain a monomer pre-emulsion.

[0038] (3) Pour the monomer pre-emulsion into a container, heat to 60° C., add 0.1 g of azobisisoheptanonitrile, and polymerize at constant temperature for 6 hours. The reacted emulsion is demulsified with ethanol, and the resulting precipitate is filtered and dissolved with perfluoro-2-n-butyltetrahydrofuran, and the fluoropolymer is precipitated with a large amount of methanol...

example 2

[0040] (1) Mix 0.1g CTAB, 0.1g AE09 and 36g water, and stir at 15°C for 25min to obtain an emulsifier solution.

[0041] (2) Add 6g of (N-methylperfluorohexanesulfonamido)ethyl acrylate (C6SA), 3g of cetyl methacrylate, 0.1g of dopamine methacrylamide, 0.01g of 1,8-naphthalene Amine acrylate, 0.1 g of dodecanethiol and the emulsifier solution obtained in step (1) were mixed, vigorously stirred for 20 minutes, and then treated with an ultrasonic cell pulverizer for 8 minutes to obtain a monomer pre-emulsion.

[0042] (3) Pour the monomer pre-emulsion into a container, heat to 70° C., add 0.15 g of azobisisoheptanonitrile, and polymerize at constant temperature for 5 hours. The reacted emulsion is demulsified with ethanol, the obtained precipitate is filtered, and perfluoro-2-n-butyltetrahydrofuran is dissolved, and a large amount of methanol is used to precipitate the fluorine-containing polymer, repeated several times, and heated and dried to obtain a pure polymer. Finally, t...

example 3

[0044] (1) Mix 0.05g CTAB, 0.05g AE09 and 32g water, and stir at 20°C for 20min to obtain an emulsifier solution.

[0045] (2) Add 9g of (N-methylperfluorohexanesulfonamido) ethyl methacrylate (C6SMA), 0.1g of norbornyl acrylate, 0.2g of dopamine methacrylamide, 0.3g of 1,8-naphthalene Imide acrylate, 0.2 g of dodecanethiol and the emulsifier solution obtained in step (1) were mixed, vigorously stirred for 10 min, and then treated with an ultrasonic cell pulverizer for 10 min to obtain a monomer pre-emulsion.

[0046] (3) Pour the monomer pre-emulsion into a container, heat to 80° C., add 0.2 g of azobisisoheptanonitrile, and polymerize at constant temperature for 3 hours. The reacted emulsion is demulsified with ethanol, the resulting precipitate is filtered and dissolved with HFE-458, and a large amount of methanol is used to precipitate the fluoropolymer, repeated several times, heated and dried to obtain a pure polymer. Finally, the formulated coating composition was diss...

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Abstract

The invention discloses a fluorescent electronic protective paint and a preparation method thereof. The paint comprises 40-90 weight parts of a fluorinated acrylate monomer, 1-50 weight parts of a non-fluoroacrylate monomer, 0.01-5 weight parts of a fluorescent monomer, and 0.1-5 weight parts of a dopamine monomer with double-bond. The invention utilizes an emulsion method to prepare the fluorescent visual protective paint composition, and the preparation process is efficient, economical and environment-friendly. The prepared paint has strong adaptability and durability. The paint compositionprepared according to the invention can be applied to various materials, especially to waterproof paint of printed circuit boards, hard disk drive components, electronic components, display screens, touch screen components and other electronic components. In addition, the coating has fluorescence visibility and stable fluorescence effect, and is convenient for quality control in a detection and coating process.

Description

technical field [0001] The invention relates to the technical field of electronic protective coatings, in particular to a fluorescent electronic protective coating and a preparation method thereof. Background technique [0002] With the continuous development of electronic technology, the application of electronic products is becoming more and more extensive, and the protection of various electronic equipment and instruments is becoming more and more important. Increasingly compact and complex electronic devices, such as mobile phones, tablets, walkmans, etc., often malfunction when wetted by water. Especially for electronic components, such as printed circuit boards, electronic components, touch screen components, etc. If there is no proper protection, electronic equipment is prone to short circuit, performance degradation and equipment failure, and it is difficult to operate for a long time with high reliability. [0003] In the prior art, acrylic resins, polyurethanes, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D133/16C09D5/22C08F220/18C08F220/24C08F220/36C08F220/38C08F220/10C08F216/14C08F2/24
CPCC09D133/08C09D133/16C08F2/24C08F220/18C08F220/38C09D5/22C08F220/387C08F220/1818C08F220/24C08F220/36C08F216/1416C08F220/10
Inventor 张庆华余燕妮詹晓力陈丰秋
Owner ZHEJIANG UNIV
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