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A superhydrophobic coating applied to diagnostic glass slides and its preparation method

A technology of super-hydrophobic coatings and glass slides, which is applied in the direction of antifouling/underwater coatings, anti-corrosion coatings, fireproof coatings, etc., and can solve the problems of unapplicable diagnostic slides, etc., and achieve poor suspension stability, less impact, and improved Effects of thermal and chemical stability

Active Publication Date: 2021-03-23
南通大学技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the method proposed in this patent cannot be applied to diagnostic slides either

Method used

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  • A superhydrophobic coating applied to diagnostic glass slides and its preparation method
  • A superhydrophobic coating applied to diagnostic glass slides and its preparation method
  • A superhydrophobic coating applied to diagnostic glass slides and its preparation method

Examples

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Effect test

Embodiment 1

[0030] A kind of super-hydrophobic coating of the present invention is applied to diagnostic glass slide, take the weight of super-hydrophobic coating as 100%, this super-hydrophobic coating is made up of following components according to mass percentage:

[0031]

[0032] Among them, the specific surface area of ​​nano-silica is 200m 2 / g, the bulk density is 50g / L, the water content is 0.75wt.%, the burning rate is 0.5%, the weight of the copolymer of tetrafluoroethylene and hexafluoropropylene is 100%, and the content of hexafluoropropylene is 15wt.%. , where the molecular formula of the silane coupling agent is NH 2 CH 2 SiCl 3 .

[0033] The steps of a preparation method of a superhydrophobic coating applied to a diagnostic slide are as follows:

[0034] (1) 40.7wt.% copolymer of tetrafluoroethylene and hexafluoropropylene, 55wt.% thermosetting acrylic resin, 0.05wt.% adipic dihydrazide, 0.4wt.% reactive diluent, 0.5 wt.% thickener and 0.1wt.% defoamer are mixed e...

Embodiment 2

[0037] A kind of super-hydrophobic coating of the present invention is applied to diagnostic glass slide, take the weight of super-hydrophobic coating as 100%, this super-hydrophobic coating is made up of following components according to mass percentage:

[0038]

[0039]

[0040] Among them, the specific surface area of ​​nano-silica is 225m 2 / g, the bulk density is 55g / L, the water content is 1.5wt.%, the burning rate is 1.0%, the weight of the copolymer of tetrafluoroethylene and hexafluoropropylene is 100%, and the content of hexafluoropropylene is 20wt.%. , where the molecular formula of the silane coupling agent is SH(CH 2 ) 3 Si(OCOCH 3 ) 3 .

[0041] The steps of a preparation method of a superhydrophobic coating applied to a diagnostic slide are as follows:

[0042] (1) 38wt.% copolymer of tetrafluoroethylene and hexafluoropropylene, 29.92wt.% n-butyl methacrylate, 30wt.% methyl methacrylate, 0.03wt.% adipate Hydrazide, 0.1 wt.% ethoxylated trimethylolpr...

Embodiment 3

[0045] A kind of super-hydrophobic coating of the present invention is applied to diagnostic glass slide, take the weight of super-hydrophobic coating as 100%, this super-hydrophobic coating is made up of following components according to mass percentage:

[0046]

[0047] Among them, the specific surface area of ​​nano-silica is 175m 2 / g, the bulk density is 45g / L, the water content is 0.5wt.%, the burning rate is 0.1%, the weight of the copolymer of tetrafluoroethylene and hexafluoropropylene is 100%, and the content of hexafluoropropylene is 10wt.%. , where the molecular formula of the silane coupling agent is CH 2 CH(CH 2 ) 2 Si(OCH 3 ) 3 .

[0048] The steps of a preparation method of a superhydrophobic coating applied to a diagnostic slide are as follows:

[0049] (1) A copolymer of 43.47wt.% tetrafluoroethylene and hexafluoropropylene, 25wt.% ethyl acrylate, 25wt.% n-butyl acrylate, 0.08wt.% adipic dihydrazide, 0.3 Wt.% of 1,6-hexanediol diacrylate, 0.3wt.% o...

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Abstract

The invention relates to a super-hydrophobic paint applicable to diagnostic glass slides and a preparation method thereof. The method includes: by mass fraction, mixing 38-38% 48% of a copolymer of tetrafluoroethylene and hexafluoropropylene, 0.5-2% of thermosetting acrylic resin, 0.03-0.08% of adipic dihydrazide, 0.2-0.6% of an active diluent, 0.3-0.7% of a thickening agent and 0.05-0.15% of a defoaming agent in proportion evenly, then performing dispersing with a dispersant at a speed of 2000-2500r / min for 30-60min, then subjecting the mixed paint to ultrasonic dispersion for 40-60min, and then subjecting the dispersed paint to water bath heating at 60-80DEG C for 30-60min to obtain a mixed material, adding 0.5-2% by mass of nano silicon dioxide and 1-3% by mass of a silane coupling agent in proportion, and employing a three-roller machine to performing grinding 10 times so as to obtain the super-hydrophobic paint. The preparation process of the super-hydrophobic paint is simple andeasy to operate, and the paint can be subjected to enzyme and microwave treatment, and the paint has advantages of long storage time, acid resistance, good glass adhesion and the like.

Description

technical field [0001] The invention relates to a special coating and a preparation method thereof, in particular to a superhydrophobic coating applied to diagnostic glass slides and a preparation method thereof. Background technique [0002] Diagnostic slides are widely used in cytological diagnosis, pathological experiments, HPV detection, etc. When the reagent to be tested is dropped in the hole, the surrounding coating has a super-hydrophobic effect, so that the reagent to be tested can form a spherical shape and avoid reagent cross-contamination. Therefore, the coating material for diagnostic slides should have surface superhydrophobic properties, that is, the contact angle between the coating and water should be greater than 150°, and at the same time, it should have good adhesion to the slide substrate glass and be resistant to various solvents used in analysis and other characteristics. [0003] Surface hydrophobic technology has a wide range of applications in peop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/06C09D4/02C09D5/16C09D5/18C09D5/08C09D7/61C03C17/30
CPCC03C17/009C09D4/06C09D5/08C09D5/1618C09D5/1687C09D5/18
Inventor 朱鹏刘媛刘怡蓉
Owner 南通大学技术转移中心有限公司
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