CN109836052A - A kind of construction method of polymer matrix super-hydrophobic coat - Google Patents
A kind of construction method of polymer matrix super-hydrophobic coat Download PDFInfo
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- CN109836052A CN109836052A CN201910197258.8A CN201910197258A CN109836052A CN 109836052 A CN109836052 A CN 109836052A CN 201910197258 A CN201910197258 A CN 201910197258A CN 109836052 A CN109836052 A CN 109836052A
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Abstract
The present invention relates to a kind of construction methods of polymer matrix super-hydrophobic coat, specifically the polymer microballoon dispersion liquid with positive charge is blended with the silicon dioxide gel with negative electrical charge, by electrostatic self-assembled effect building there is polymer/silica dioxide composite particles polymer/silica dioxide composite particles dispersion liquid of rasp berry structure can form a film in glass surface, it can be obtained the super-hydrophobic coat that contact angle is greater than 150 ° through silane coupling agent hydrophobic treatment after film forming, this coating has many advantages, such as that film forming is uniform, hydrophobicity is good, adhesion strength is high.
Description
Technical field
The invention belongs to functional paint technical fields, and in particular to a kind of side of constructing of polymer matrix super-hydrophobic coat
Method.
Background technique
Super-hydrophobic coat has the characteristics that self-cleaning, is usually used in glass or metal surface to prevent outside contamination super-hydrophobic
There are mainly two types of the construction methods of coating, one is low surface energy coat is constructed using chemic modified method, utilizes the low pole of coating
Property reduce water adhesive force, achieving the purpose that super-hydrophobic, another is to construct biomimetic features such as lotus leaf structure in coating surface
Deng reducing the active area between water droplet and coating, and then reduce the adhesive force between water droplet and coating, it is super thin to reach structural type
Water is currently, super-hydrophobic coat has been applied to the fields such as marine anticorrosion, Crude Oil Transportation, high-rise glass automatically cleaning, in society and economy
Increasing effect is played in development still, although super-hydrophobic coat has the above advantages, there is preparation price
The features such as high, inconvenient to use, low with coating surface binding force, was such as application No. is 201810981040.7 using vapor deposition method
Dense coating surface is constructed using the fluorocarbons of deposition, and then reduces surface covering surface energy, reaches super-hydrophobic purpose but this side
Method complex process, it is at high cost, it is unfavorable for the titanium dioxide that 201510661330. X of heavy industrialization application uses chemical modification
Silicon is blended with coating, and then improves the hydrophobic ability of coating by hydrophobic silica, although the method operation letter
It is single, but effect is general, and silica can be low by modifying super hydrophobicity rear surface, is uniformly mixed very in water paint, therefore
The a series of problems for constructing process appearance in view of current super-hydrophobic coat using limited, the invention proposes a kind of simple, efficient
The method for preparing super-hydrophobic coat inherently improves coating in conjunction with the dual characteristics of chemical modification and building biomimetic features
Super-hydrophobicity.
Summary of the invention
The technical problem to be solved by the present invention is to overcome existing super-hydrophobic coat construction methods complicated, at high cost, adhesive force
The disadvantage of difference
The present invention in order to solve the technical problem, proposes dividing using the polymer microballoon and electronegative silicon dioxide granule of positive charge
Polymer/silica dioxide composite particles with rasp berry structure are constructed by self-assembling method in dephasing, utilize this rasp berry knot
The compound particle of structure is had the special construction of hydrophobic property in glass surface film forming building and is carried out using silane coupling agent hydrophobic
It is as follows to achieve the purpose that prepare super-hydrophobic coat its specific implementation step for the processing of layer surface super-hydrophobicization:
(1) in terms of mass parts, the microspheres quality in polymer microballoon dispersion liquid is set as 100 parts of 1~10 part of stabilizer is molten
Solution is in microballoon dispersion liquid, then being slowly added to 5~30 parts of mass fractions into the microballoon dispersion liquid dissolved with stabilizer is 40wt%'s
Silicon dioxide gel is mixed 20~150 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
(2) with sheet glass, by polymer/SiO 2 composite microsphere dispersion liquid, pulling film forming constructs coating and makes its glass table repeatedly
Face all standing and thin and thick is uniform can be obtained hydrophobic coating after dry
(3) hydrophobic coating surface of above-mentioned acquisition is sprayed into the hydrophobic agent solution of silane coupler solution, after 60~150 DEG C of drying i.e.
It can get super-hydrophobic coat
In the present invention, the particle size of the monodisperse polymer micro-sphere is 200nm~5 μm, and institute is electrically charged to be required to be positive electricity
Lotus, preferably potential value are 30~60mV.
In the present invention, the polymer microballoon material is polystyrene, polymethyl methacrylate and contains mentioned component
Copolymer microsphere
In the present invention, the stabilizer be polyvinylpyrrolidone, polyvinyl alcohol, alkyl phenol polyoxyethylene ether class emulsifier,
High-carbon fatty alcohol polyoxyethylene ether class emulsifier, polyoxyethylene carboxylate class emulsifier, fatty acid methyl ester ethoxylate cream
Agent, the ethylene oxide adduct emulsifier of polypropylene glycol, polyoxyethylated ionic emulsifying agent, arlacels cream
One or more of agent, alkylolamides type emulsifier
In the present invention, the size of the nanometer silicon dioxide particle is 10~200nm, institute is electrically charged require be it is negatively charged, it is excellent
Selecting potential value is -60~-30mV.
In the present invention, the silane coupling agent is dodecyltrimethoxysilane, tetradecyltrimethoxysilane, 16
Alkyl trimethoxysilane, octadecyl trimethoxysilane, eicosyl trimethoxy silane, docosyl trimethoxy
The one kind of silane coupling agents or several such as silane, ten trifluoro octyl trimethoxy silanes and 17 fluorine ruthenium trimethoxysilanes
Kind
The beneficial effects of the present invention are:
It is using the electrostatic interaction between polymer microballoon and silicon dioxide granule that silicon dioxide granule self assembly is micro- in polymer
Ball surface, the polymer/silica dioxide composite particles for constructing rasp berry structure are formed a film using the particle of rasp berry structure in glass surface
Super-hydrophobic structure is formed, in turn in its surface-hydrophobicized processing, has reached the hydrophobic dual purpose with chemical drains of structure
Selected cost of material is low in invention, and is environment-friendly products, safe and non-toxic, and due to the particle of polarity effect rasp berry structure
It is stronger with glass attachment power, not easily to fall off
Detailed description of the invention:
Fig. 1 is the rasp berry structure obtained of the embodiment of the present invention 1
Fig. 2 is static contact angle picture of the water droplet on the acquisition coating of embodiment 1
Fig. 3 is static contact angle picture of the water droplet on the acquisition coating of reference examples 1
Embodiment 1:
(1) 0.1g polyvinylpyrrolidone is dissolved in the polyphenyl second that 100g mass fraction is 5wt% and Microsphere Size is 900nm
In alkene dispersion liquid, then being slowly added to 2.5g mass fraction into microballoon dispersion liquid is that silica of the 40wt% having a size of 20nm is molten
Glue is mixed 60 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
(2) with sheet glass, by polymer/silica dioxide composite particles dispersion liquid, pulling film forming constructs coating and makes its glass table repeatedly
Face all standing and thin and thick is uniform can be obtained hydrophobic coating after dry
(3) hydrophobic coating surface of above-mentioned acquisition is sprayed into the 17 hydrophobic agent solutions of fluorine ruthenium trimethoxysilane, 140 DEG C of drying
After can be obtained super-hydrophobic coat
Embodiment 2:
(1) 0.1g polyvinylpyrrolidone is dissolved in the polyphenyl second that 100g mass fraction is 5wt% and Microsphere Size is 900nm
In alkene dispersion liquid, then being slowly added to 2g mass fraction into microballoon dispersion liquid is silicon dioxide gel of the 40wt% having a size of 20nm,
It is mixed 60 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
(2) with sheet glass, by polymer/silica dioxide composite particles dispersion liquid, pulling film forming constructs coating and makes its glass table repeatedly
Face all standing and thin and thick is uniform can be obtained hydrophobic coating after dry
(3) hydrophobic coating surface of above-mentioned acquisition is sprayed into the 17 hydrophobic agent solutions of fluorine ruthenium trimethoxysilane, 140 DEG C of drying
After can be obtained super-hydrophobic coat
Embodiment 3:
(1) 0.1g polyvinylpyrrolidone is dissolved in the polyphenyl second that 100g mass fraction is 5wt% and Microsphere Size is 900nm
In alkene dispersion liquid, then being slowly added to 4g mass fraction into microballoon dispersion liquid is silicon dioxide gel of the 40wt% having a size of 50nm,
It is mixed 60 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
(2) with sheet glass, by polymer/silica dioxide composite particles dispersion liquid, pulling film forming constructs coating and makes its glass table repeatedly
Face all standing and thin and thick is uniform can be obtained hydrophobic coating after dry
(3) hydrophobic coating surface of above-mentioned acquisition is sprayed into the 17 hydrophobic agent solutions of fluorine ruthenium trimethoxysilane, 140 DEG C of drying
After can be obtained super-hydrophobic coat
Embodiment 4:
(1) 0.1g polyvinylpyrrolidone is dissolved in the polyphenyl second that 100g mass fraction is 5wt% and Microsphere Size is 900nm
In alkene dispersion liquid, then being slowly added to 2.5g mass fraction into microballoon dispersion liquid is that silica of the 40wt% having a size of 20nm is molten
Glue is mixed 60 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
(2) with sheet glass, by polymer/silica dioxide composite particles dispersion liquid, pulling film forming constructs coating and makes its glass table repeatedly
Face all standing and thin and thick is uniform can be obtained hydrophobic coating after dry
(3) hydrophobic coating surface of above-mentioned acquisition is sprayed into the hydrophobic agent solution of octadecyl trimethoxysilane, after 140 DEG C of drying
It can be obtained super-hydrophobic coat
Embodiment 5:
(1) 0.2g polyvinylpyrrolidone is dissolved in the polystyrene that 100g mass fraction is 5wt% and Microsphere Size is 1 μm
In dispersion liquid, then being slowly added to 2.5g mass fraction into microballoon dispersion liquid is silicon dioxide gel of the 40wt% having a size of 20nm,
It is mixed 60 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
(2) with sheet glass, by polymer/silica dioxide composite particles dispersion liquid, pulling film forming constructs coating and makes its glass table repeatedly
Face all standing and thin and thick is uniform can be obtained hydrophobic coating after dry
(3) hydrophobic coating surface of above-mentioned acquisition is sprayed into the hydrophobic agent solution of octadecyl trimethoxysilane, after 140 DEG C of drying
It can be obtained super-hydrophobic coat
Reference examples 1:
(1) directly the polystyrene dispersion liquid that 100g mass fraction is 5wt% and Microsphere Size is 900nm is used to form a film, is used
Sheet glass by dispersion liquid, construct coating and make its glass surface all standing and the uniform of thin and thick repeatedly by pulling film forming
(2) it can be obtained control coatings after drying the coating of above-mentioned acquisition at 140 DEG C
For the product hydrophobic performance for clearly indicating that 5 embodiments Yu reference examples 1, test knot is listed with following form
Fruit
1 test result of table
Claims (6)
1. a kind of construction method of polymer matrix super-hydrophobic coat, step include:
In terms of mass parts, the microspheres quality in polymer microballoon dispersion liquid is set as 100 parts of and dissolves 1~10 part of stabilizer
5~30 parts of mass fractions are slowly added in microballoon dispersion liquid, then into the microballoon dispersion liquid dissolved with stabilizer as the two of 40wt%
Silica sol is mixed 20~150 minutes and constructs polymer/silica dioxide composite particles dispersion liquid
With sheet glass, by polymer/SiO 2 composite microsphere dispersion liquid, pulling film forming constructs coating and keeps its glass surface complete repeatedly
It covers and thin and thick is uniform, can be obtained hydrophobic coating after dry
The hydrophobic coating surface of above-mentioned acquisition is sprayed into the hydrophobic agent solution of silane coupling agent, can be obtained after 60~150 DEG C of drying
Super-hydrophobic coat.
2. in a kind of construction method of polymer matrix super-hydrophobic coat, it is characterised in that: the monodisperse polymer micro-sphere
Particle size is 200nm~5 μm, and institute is electrically charged to be required to be positive charge, and preferably potential value is 30~60mV.
3. a kind of construction method of polymer matrix super-hydrophobic coat, it is characterised in that: the polymer microballoon material is polyphenyl
Ethylene, polymethyl methacrylate and the copolymer containing mentioned component.
4. a kind of construction method of polymer matrix super-hydrophobic coat, it is characterised in that: the stabilizer is polyvinylpyrrolidine
Ketone, polyvinyl alcohol, alkyl phenol polyoxyethylene ether class emulsifier, high-carbon fatty alcohol polyoxyethylene ether class emulsifier, fatty acid polyoxy
Vinyl esters emulsifier, fatty acid methyl ester ethoxylate emulsifier, polypropylene glycol ethylene oxide adduct emulsifier, polyoxy
One or more of the ionic emulsifying agent of vinylation, arlacels emulsifier, alkylolamides type emulsifier.
5. a kind of construction method of polymer matrix super-hydrophobic coat, it is characterised in that: the ruler of the nanometer silicon dioxide particle
Very little is 10~200nm, institute it is electrically charged require be it is negatively charged, preferably potential value be -60~-30mV.
6. a kind of construction method of polymer matrix super-hydrophobic coat, it is characterised in that: the silane coupling agent is dodecyl
Trimethoxy silane, tetradecyltrimethoxysilane, hexadecyl trimethoxy silane, octadecyl trimethoxysilane,
Eicosyl trimethoxy silane, docosyl trimethoxy silane, ten trifluoro octyl trimethoxy silanes and 17 fluorine
The one or more of the silane coupling agents such as ruthenium trimethoxysilane.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113004749A (en) * | 2019-12-20 | 2021-06-22 | 广东美的白色家电技术创新中心有限公司 | Super-hydrophobic coating and preparation method and application thereof |
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| CN104672962A (en) * | 2015-03-22 | 2015-06-03 | 河北工业大学 | Inorganic substance super-hydrophobic paint and application thereof |
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2019
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| CN106536447A (en) * | 2014-07-17 | 2017-03-22 | 代尔夫特科技大学 | Process for the production of cementitious material |
| CN104672962A (en) * | 2015-03-22 | 2015-06-03 | 河北工业大学 | Inorganic substance super-hydrophobic paint and application thereof |
| CN107998997A (en) * | 2017-12-26 | 2018-05-08 | 中科院广州化学有限公司 | One species raspberry shape microballoon, super-hydrophobic coat and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113004749A (en) * | 2019-12-20 | 2021-06-22 | 广东美的白色家电技术创新中心有限公司 | Super-hydrophobic coating and preparation method and application thereof |
| WO2021121422A1 (en) * | 2019-12-20 | 2021-06-24 | 广东美的白色家电技术创新中心有限公司 | Superhydrophobic coating, method for preparing same and use thereof |
| JP2023503523A (en) * | 2019-12-20 | 2023-01-30 | ▲広▼▲東▼美的白色家▲電▼技▲術▼▲創▼新中心有限公司 | Superhydrophobic coating layer and method of preparation and use thereof |
| JP7381173B2 (en) | 2019-12-20 | 2023-11-15 | ▲広▼▲東▼美的白色家▲電▼技▲術▼▲創▼新中心有限公司 | Superhydrophobic coating layer and its preparation method and use |
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Application publication date: 20190604 |