CN105199512B - A kind of water-based hydrophobic agent and preparation method thereof - Google Patents
A kind of water-based hydrophobic agent and preparation method thereof Download PDFInfo
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- CN105199512B CN105199512B CN201510648590.3A CN201510648590A CN105199512B CN 105199512 B CN105199512 B CN 105199512B CN 201510648590 A CN201510648590 A CN 201510648590A CN 105199512 B CN105199512 B CN 105199512B
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Abstract
The invention discloses a kind of water-based hydrophobic agent, according to parts by weight, including 80~120 parts of acidic silicasols, 20~30 parts of polyacrylate emulsions, 0.5~1 portion of anion surfactant and 5~10 parts of organosilicon modifiers.The anion surfactant is mixed by hydrophilic lipophilic balance for 2~7 and 12~17 two analog anion surfactants.The invention also discloses the preparation method of the water-based hydrophobic agent.The water-based hydrophobic agent of the present invention has wide range of applications, low in raw material price, environmental protection, is easy to promote, more than 3 times of extended shelf-life；The hydrophobic membrane initial contact angle that water-based hydrophobic agent is formed is up to more than 140 °, belongs to super-hydrophobic, and scrubbing resistance, with more preferable durability.
Description
Technical field
The invention belongs to paint field, specifically a kind of water-based hydrophobic agent and preparation method thereof.
Background technology
Water-based hydrophobic agent is can to form a kind of special water resistant knot after a kind of water-borne dispersions of mixture compound, film forming
Structure (change contact angle), makes body surface have extremely strong hydrophobic, hydrophobic, water resistance.Current water-repelling agent species is more, typically
For organic silicon emulsion, it is added in emulsion paint as additive, there is certain requirement to addition, if measuring effect at least
It is affected, if painting quality can at most be influenceed by measuring, and price is higher, is not suitable for using in some low-grade materials.
Ludox environmental protection, cheap to be easy to get, surface can play hydrophobic effect after organic-silicon-modified, and Recent study is lived
Jump.But, modified Ludox property is unstable, and hydrophobic effect is also unsatisfactory.Therefore urgent need one kind is cheap, use
The wide water-based hydrophobic agent of scope.
The content of the invention
It is an object of the invention to provide a kind of good durability, widely used water-based hydrophobic agent.
It is a further object of the present invention to provide the preparation method of the water-based hydrophobic agent.
To reach above-mentioned purpose, the present invention uses following technical scheme：
A kind of water-based hydrophobic agent, according to parts by weight, including 80~120 parts of acidic silicasols, 20~30 parts of polyacrylic acid
Emulsion, 0.5~1 portion of anion surfactant and 5~10 parts of organosilicon modifiers.
Further, the glass transition temperature of the polyacrylate emulsion is 5~10 DEG C, and solid content is 45%.
Further, the anion surfactant by hydrophilic lipophilic balance for 2~7 and 12~17 two classes it is cloudy from
Sub- surfactant is mixed.
Further, the anion surfactant that the hydrophilic lipophilic balance is 2~7 is Span 80, Emcol EO-
50 or MOA-3.
Further, the anion surfactant that the hydrophilic lipophilic balance is 12~17 is polysorbas20, polysorbate40
Or PEG400.
Further, the organosilicon modifier is MTMS, MTES, dodecyl
Trimethoxy silane, dodecyl triethoxysilane, hexadecyl trimethoxy silane, hexadecyl,
At least one of octadecyl trimethoxysilane and octadecyltriethoxy silane.
The preparation method of water-based hydrophobic agent described in above-mentioned any one claim, be specifically：By acidic silicasol and
Polyacrylate emulsion stirs, and adds anion surfactant, dropwise addition in 40~60 DEG C, 1.5h is warming up under stirring organic
Silica modifier, is incubated 4~6h, and the lower cooling of stirring is produced.
The invention has the advantages that：
The present invention uses acidic silicasol for raw material, is modified through organosilicon modifier surface, utilizes anion surface active
The addition of agent, is terminal when controlling and changing in course of reaction from oil-in-water phase (W/O) to Water-In-Oil phase (O/W), while addition is suitable
When polyacrylate emulsion be film forming matter, gained water-based hydrophobic agent has wide range of applications, you can used separately as coating,
It can be also used as functional additive as basecoat material and be added in emulsion paint；And the price such as acidic silicasol used
Cheap, environmental protection, cost of material is greatly lowered, and is easy to promote, is adapted to industrialized production；Products therefrom is paste, is made
Used time adds a small amount of water to dilute, and the layering that modified Ludox is easily separated out and caused is effectively prevent, to storage temperature
It is less demanding, more than 3 times of extended shelf-life；The hydrophobic membrane initial contact angle that water-based hydrophobic agent is formed is up to more than 140 °, category
In super-hydrophobic, and scrubbing resistance, with more preferable durability.
Embodiment
With reference to specific embodiment, the present invention is described further：
Acidic silicasol is prepared by ion-exchange used in following examples；The vitrifying of polyacrylate emulsion used
Temperature is 5~10 DEG C, and solid content is 45%；The number refers both to parts by weight.
Embodiment 1
100 parts of acidic silicasols and 23 parts of polyacrylate emulsions are stirred, 1 portion of anion surfactant is added
(by Span 80 and polysorbas20 according to weight ratio 1：1 mixes), 7 parts of dropwise addition in 40~60 DEG C, 1.5h is warming up under stirring to be had
Machine silica modifier is (by MTMS and hexadecyl trimethoxy silane according to weight ratio 7：3 mix), protect
Warm 5h, the lower cooling of stirring is produced.
Embodiment 2
100 parts of acidic silicasols and 30 parts of polyacrylate emulsions are stirred, 0.8 portion of anion surfactant is added
(by Emcol EO-50 and polysorbate40 according to weight ratio 1：1 mixes), 5 parts of dropwise addition in 55 DEG C, 1.5h is warming up under stirring to be had
Machine silica modifier (octadecyltriethoxy silane), is incubated 5h, and the lower cooling of stirring is produced.
Embodiment 3
100 parts of acidic silicasols and 20 parts of polyacrylate emulsions are stirred, 1 portion of anion surfactant is added
(by MOA-3 and PEG400 according to weight ratio 1：1 mixes), it is warming up under stirring in 45 DEG C, 1.5h and 10 parts of organosilicons is added dropwise
Modifying agent (MTES), is incubated 5h, and the lower cooling of stirring is produced.
Embodiment 4
80 parts of acidic silicasols and 25 parts of polyacrylate emulsions are stirred, 0.5 portion of anion surfactant is added
(by Emcol EO-50 and PEG400 according to weight ratio 1：1 mixes), 8 parts of dropwise addition in 60 DEG C, 1.5h is warming up under stirring to be had
Machine silica modifier is (by hexadecyl and octadecyltriethoxy silane according to weight ratio 1：2 mixing and
Into), 4h is incubated, the lower cooling of stirring is produced.
Embodiment 5
120 parts of acidic silicasols and 28 parts of polyacrylate emulsions are stirred, 0.6 portion of anion surfactant is added
(by MOA-3 and polysorbas20 according to weight ratio 1：1 mixes), 6 parts of organosilicons of dropwise addition in 40 DEG C, 1.5h are warming up under stirring and are changed
Property agent is (by dodecyltrimethoxysilane and dodecyl triethoxysilane according to weight ratio 3：2 mix), insulation
6h, the lower cooling of stirring is produced.
Performance test
The water-based hydrophobic agent of embodiment 1~5 is subjected to durability test, with commercially available prod as a comparison case.
1st, Emulsion Stability Test：10g or so samples are weighed in 10mL band grinding port plug centrifuge tubes, it is steady in 70 DEG C of water-baths
Determine 1h, 800 type centrifuge 3500r/min are centrifuged 10 minutes, see whether layering.And calculate emulsion stability：Emulsified after centrifugation
Liquid total height × 100% in layer height/centrifuge tube.
As a result：Embodiment 1~5 is not stratified, and comparative example is layered, and emulsion stability is 30%.
2nd, scrubbing resistance is tested：
Using spraying coating process by the water-based hydrophobic agent after being diluted with a small amount of water in the wood surface film forming Jing Guo grinding process,
Naturally hydrophobic film layer can be obtained by placing 24h.
Contact angle method of testing：Test environment (23 ± 2) DEG C, RH (50 ± 5) %, test method is according to sessile drop method, by water
Drop is placed in wood surface, and drop volume is the interior completion tests of 2s after 1~3 μ L, drop contact coating, continuously can take pictures or record
Picture, the image at crawl 2s moment seeks contact angle values as contact angle at initial stage.
Scrub performance is tested：Cleaned using windscreen wiper bar, while applying 300g load to windscreen wiper bar, windscreen wiper bar is by cylinder
Driving, reciprocal clean once is circulated for one, and scouring frequency is 48 circulations/min, and 0.5% washing powder is added dropwise during scouring
Solution.Contact angle is tested successively after scouring 10000,30000,50000 circulations.
The water-based hydrophobic agent of table 1 obtains the hydrophobic performance of film layer
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example | |
| Initial contact angle (°) | 140 | 147 | 151 | 135 |
| After cleaning 10000 times (°) | 138 | 143 | 146 | 123 |
| After cleaning 30000 times (°) | 135 | 140 | 143 | 101 |
| After cleaning 50000 times (°) | 132 | 138 | 141 | 99 |
As shown in Table 1, the hydrophobic membrane initial contact angle that water-based hydrophobic agent of the invention is formed is up to more than 140 °, is higher than
Comparative example, belongs to super-hydrophobic, and scrubbing resistance, still has higher contact angle after cleaning 50000 times, with preferably durable
Property.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Belong to those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (6)
1. a kind of water-based hydrophobic agent, it is characterised in that according to parts by weight, including 80~120 parts of acidic silicasols, 20~30 parts
Polyacrylate emulsion, 0.5~1 portion of anion surfactant and 5~10 parts of organosilicon modifiers；The anion surface active
Agent is mixed by hydrophilic lipophilic balance for 2~7 and 12~17 two analog anion surfactants.
2. water-based hydrophobic agent according to claim 1, it is characterised in that the glass transition temperature of the polyacrylate emulsion is
5~10 DEG C, solid content is 45%.
3. water-based hydrophobic agent according to claim 1, it is characterised in that the hydrophilic lipophilic balance for 2~7 it is cloudy from
Sub- surfactant is Span 80, Emcol EO-50 or MOA-3.
4. water-based hydrophobic agent according to claim 1, it is characterised in that the hydrophilic lipophilic balance is 12~17 the moon
Ionic surface active agent is polysorbas20, polysorbate40 or PEG400.
5. water-based hydrophobic agent according to claim 1, it is characterised in that the organosilicon modifier is methyl trimethoxy epoxide
Silane, MTES, dodecyltrimethoxysilane, dodecyl triethoxysilane, cetyl front three
In TMOS, hexadecyl, octadecyl trimethoxysilane and octadecyltriethoxy silane
It is at least one.
6. the preparation method of the water-based hydrophobic agent described in above-mentioned any one claim, it is characterised in that by acidic silicasol
Stirred with polyacrylate emulsion, add anion surfactant, being warming up to be added dropwise in 40~60 DEG C, 1.5h under stirring has
Machine silica modifier, is incubated 4~6h, and the lower cooling of stirring is produced.
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| CN201510648590.3A CN105199512B (en) | 2015-10-08 | 2015-10-08 | A kind of water-based hydrophobic agent and preparation method thereof |
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| CN201510648590.3A CN105199512B (en) | 2015-10-08 | 2015-10-08 | A kind of water-based hydrophobic agent and preparation method thereof |
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| CN105199512B true CN105199512B (en) | 2017-08-25 |
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| CN109825119A (en) * | 2017-11-23 | 2019-05-31 | 洛阳尖端技术研究院 | A kind of anti-flaming dope and its preparation method and application |
| CN108517154A (en) * | 2018-03-16 | 2018-09-11 | 南开大学 | A kind of aqueous, floride-free super hydrophobic coating and preparation method |
| CN109171351A (en) * | 2018-09-11 | 2019-01-11 | 倪学林 | A kind of washing silk quilt and its manufacture craft |
| CN112391878A (en) * | 2020-11-05 | 2021-02-23 | 上海荣腾包装服务有限公司 | Stone-plastic composite board and preparation method thereof |
| CN115368025B (en) * | 2022-06-17 | 2024-06-14 | 苏州京程材料有限公司 | Anti-pollution self-cleaning glass substrate and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4432907B2 (en) * | 2003-12-25 | 2010-03-17 | エスケー化研株式会社 | Water-based paint composition |
| CN103483955A (en) * | 2013-09-24 | 2014-01-01 | 青岛三立新源电器有限公司 | Waterproof and heat-insulating paint composition for buildings |
| CN103709868A (en) * | 2013-12-25 | 2014-04-09 | 广州泰祥实业新材料科技（新丰）有限公司 | Microspherical SiO2 aerogel compound heat-insulating/warm-keeping external wall paint and preparation method thereof |
| CN104449161A (en) * | 2013-09-25 | 2015-03-25 | 青岛市首胜实业有限公司 | Production technique of silica-sol-type stone waterproofing agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586309A (en) * | 1991-09-27 | 1993-04-06 | Mitsubishi Kasei Vinyl Co | Ship bottom coating material |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4432907B2 (en) * | 2003-12-25 | 2010-03-17 | エスケー化研株式会社 | Water-based paint composition |
| CN103483955A (en) * | 2013-09-24 | 2014-01-01 | 青岛三立新源电器有限公司 | Waterproof and heat-insulating paint composition for buildings |
| CN104449161A (en) * | 2013-09-25 | 2015-03-25 | 青岛市首胜实业有限公司 | Production technique of silica-sol-type stone waterproofing agent |
| CN103709868A (en) * | 2013-12-25 | 2014-04-09 | 广州泰祥实业新材料科技（新丰）有限公司 | Microspherical SiO2 aerogel compound heat-insulating/warm-keeping external wall paint and preparation method thereof |
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