CN1185311C - Preparation method of UV light stabilizing agent for water building outer wall coating material - Google Patents
Preparation method of UV light stabilizing agent for water building outer wall coating material Download PDFInfo
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- CN1185311C CN1185311C CN 01138614 CN01138614A CN1185311C CN 1185311 C CN1185311 C CN 1185311C CN 01138614 CN01138614 CN 01138614 CN 01138614 A CN01138614 A CN 01138614A CN 1185311 C CN1185311 C CN 1185311C
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Abstract
The present invention discloses a preparation method for ultraviolet stabilizing agents for water-based building exterior wall coatings. Nanometer silicon dioxide is used mainly, wet dispersing agents, multifunctional dispersing agents, humectant, stabilizing agents, defoaming agents, germicide, etc. are added, and ultraviolet stabilizing agents are prepared by stirring and ball milling. The ageing resistance of coatings can be greatly improved by adding ultraviolet stabilizing agents in building exterior wall coatings. The ultraviolet stabilizing agents for water-based building exterior wall coatings of the present invention are water-based slurry which is friendly to the environment in use and has good compatibility with various water-based coatings, such as styrene-acrylate water-based coatings, pure acrylic water-based coatings, silicone-acrylic coatings, ethylene-propylene water-based coatings, common latex and water soluble resin, and can be added in any process of the production of coatings.
Description
Technical field
The present invention relates to a kind of preparation method of UV light stabilizing agent for water building outer wall coating material, specifically, relate to preparation method by formulated a kind of UV light stabilizing agent for water building outer wall coating material such as silica nanometer level ultra-fine micropowder, multiple auxiliary agent and water.
Background technology
As everyone knows; water building outer wall coating material is owing to stand wind and weather out of doors for a long time; the coating catabiosis such as efflorescence, eclipsed, be full of cracks peeling of filming appear in exposure in sunshine, the cold and hot conversion meeting of alternation of wetting and drying and temperature, thereby lose decoration and the defencive function of coating to skin.People use through secular experimental study and engineering and progressively recognize, building external paint is aging mainly to be because the direct irradiation that a small amount of ultraviolet ray that contains in the sunlight is filmed to coating is caused.
Except that visible light and infrared rays, also has ultraviolet ray in the sunlight.Press the wavelength size, ultraviolet ray can be divided into shortwave UVC 190nm-280nm, medium wave UVB 280nm-320nm and long wave UVA 320nm-400nm.Ultraviolet wavelength is short more, and energy is strong more, and is serious more to organic destruction.By table 1 as seen, than long light-wave energy molecule is produced vibrates and rotates and the generation heat, and ultraviolet (UV) A, UVB, UVC can produce destruction to chemical bond such as C-H, C-C, C-Cl in the organism and the material with identical bond energy, thereby causes that organism, macromolecular compound are degraded into small molecules.The basic chemical bond of filmogen and pigment dyestuff is exactly C-C key and c h bond etc. in the coating, ultraviolet ray to the destruction of coating filmogen and pigment then can cause coating loss of gloss, fade, catabiosis such as efflorescence, be full of cracks.
The main method of prevention or minimizing paint aging is to add UV light stabilizing agent in coating, rely in the coating as the Switzerland Ciba company of refining and to add the work-ing life that Tinuvinl130 ultraviolet absorbers and Tinuvin292 hindered amine as light stabilizer increase coating, Switzerland Clariant company relies in the coating and adds the work-ing life that Saduvoy 3225 Dispersion UV light stabilizing agent increase coating.
Table 1 light wavelength and energy and common organic compounds chemistry bond energy
| Wavelength/nm | 200 | 300 | 400 | 500 | 700 | 800 |
| Luminous energy kJmol -1 | 598 | 397 | 301 | 238 | 171 | 146 |
| The chemistry key name | O-H | C-H | C-C | C-Cl | N-N | O-O |
| Bond energy/kJmol -1 | 462 | 413 | 347 | 326 | 158 | 138 |
The interpolation UV light stabilizing agent increases the method in work-ing life in coating certain defective, the Ciba used UV light stabilizing agent of company of refining mostly is nonpolar oily organic compound, be not suitable for being used for aqueous architectural coating, and the used UV light stabilizing agent of Clariant company is a water miscible liquid, can only add in the paint stage of aqueous architectural coating production process.In aqueous architectural coating is produced, press for and a kind ofly can add easy to use and outstanding effect aqueous architectural coating UV light stabilizing agent in any stage of production process.
Last decade comes, and is very burning hot in the research of the ultra tiny material of 1-100nm for the particle size that is referred to as nano material, promoted the development of nano material subject and nanosecond science and technology.Nano material has quantum size effect, small-size effect, surface effects and macro quanta tunnel effect.Nano material is because small-size effect makes it have the optical characteristics that conventional massive material does not possess, and all with the size of nanoparticle very strong dependence arranged as the energy waste in optical nonlinearity, photoabsorption, luminous reflectance, the optical transmission process etc.Studies show that nano silica powder has strong absorption to wavelength in the UV-light of 200-400nm, therefore, lay the foundation for utilizing nano silicon preparation UV light stabilizing agent for water building outer wall coating material.
Summary of the invention
Purpose of the present invention will provide a kind of UV light stabilizing agent for water building outer wall coating material exactly, and can add UV light stabilizing agent in any stage of aqueous architectural coating production process, is of value to the production of ageing-resistant water building outer wall coating material.
UV light stabilizing agent for water building outer wall coating material of the present invention is the slurry of being made by auxiliary agents such as nano-silica powder end, wetting dispersing agent, multi-functional dispersion agents.Concrete compound method is:
Starting material are pressed column weight amount % preparation:
Nanometer SiO
2Powder 20-40;
Polyoxyethylene nonylphenol ether 2-8;
2-amino-2-methyl-1-propanol 0.5-2.5
1,2-propylene glycol 2-8
5-chloro-2-methyl-4-isothiazoline-3-ketone 0.1-0.2;
Poly-methyl triethyl silicane 0.3-0.7;
Two (dioctyl pyrophosphate) hydroxyethanoic acid titanium 0.1-0.3;
Deionized water 58-66;
Each raw material weight per-cent sum of UV light stabilizing agent is 100%.
Optimum feed stock weight % is formulated as:
Nanometer SiO
2Powder 25-35;
Polyoxyethylene nonylphenol ether 3-7;
2-amino-2-methyl-1-propanol 1-2;
1,2-propylene glycol 3-7;
5-chloro-2-methyl-4-isothiazoline-3-ketone 0.1-0.2;
Poly-methyl triethyl silicane 0.4-0.6;
Two (dioctyl pyrophosphate) hydroxyethanoic acid titanium 0.1-0.3;
Deionized water 60-64;
Each raw material weight per-cent sum of UV light stabilizing agent is 100%.。Adopt polyoxyethylene nonylphenol ether as wetting dispersing agent in the batching, its molecular formula:
The preparation technology of UV light stabilizing agent for water building outer wall coating material of the present invention is: load weighted polyoxyethylene nonylphenol ether, 2-amino-2-methyl-1-propanol, 1,2-propylene glycol, 5-chloro-2-methyl-4-isothiazoline-3-ketone, poly-methyl triethyl silicane, two (dioctyl pyrophosphate) hydroxyethanoic acid titanium add in the deionized water, stir and they were mixed in 5-10 minute, add nanometer SiO then
2Powder stirred 20-40 minute, at last the mixed slurry component was added ball milling 43-53h in the ball mill, and until forming uniform thick soup compound, the soup compound pH value is controlled between the 7-10, makes UV light stabilizing agent for water building outer wall coating material of the present invention.
UV light stabilizing agent for water building outer wall coating material of the present invention with the advantage that existing UV light stabilizing agent is compared is:
UV light stabilizing agent for water building outer wall coating material of the present invention is the water-based slurry, can add in any process of coating material production, and with common latex and water soluble resin good consistency be arranged; The used nano silica powder of water-based slurry of the present invention can be buied its key technical indexes from the domestic market: purity 〉=99.9%.Median size 10nm, specific surface area 640m
2/ g, thing phase amorphous.Water-based slurry of the present invention also can be selected well-known additive for use, as: propylene glycol as wetting Agent for Printing Inks, 5-chloro-2-methyl-4-isothiazoline-3-ketone as sterilant, two (dioctyl pyrophosphate) hydroxyethanoic acid titanium as stablizer, poly-methyl triethyl silicane as defoamer, basic consumption is by the amount that the people adopted of knowing coating technology, and can obtain performances such as satisfied storage period, outward appearance, viscosity.
Adopt the prepared UV light stabilizing agent for water building outer wall coating material of the inventive method after testing, its performance is:
Median size 50nm
Viscosity 2000mPas
PH value 8.5
State white thickness slurry
The UV light stabilizing agent for preparing is added silicon-acrylic coatings through the 500h temper(ing), the variable color difference Δ E such as the following table 2 of aging front and back, senile experiment shows that after the adding UV light stabilizing agent, the paint aging degree weakens greatly.
Table 2 UV light stabilizing agent is to the influence of paint aging
| The UV light stabilizing agent addition, % | 0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 5.0 |
| Aging front and back variable color is poor, | 0.65 | 0.42 | 0.33 | 0.35 | 0.37 | 0.45 | 0.5 |
Embodiment
Realize that best implementation method of the present invention is:
Example 1: press column weight amount % batching:
Nanometer SiO
2Powder 25;
Polyoxyethylene nonylphenol ether 5;
2-amino-2-methyl-1-propanol 1.5;
1,2-propylene glycol 5;
5-chloro-2-methyl-4-isothiazoline-3-ketone 0.15;
Poly-methyl triethyl silicane 0.5;
Two (dioctyl pyrophosphate) hydroxyethanoic acid titanium 0.15;
Deionized water 62.7.The n value of the polyoxyethylene nonylphenol ether in the prescription is 10.
Technology is: the polyoxyethylene nonylphenol ether 5%, 1.5% 2-amino-2-methyl-1-propanol, 5% 1,2-propylene glycol, 5-chloro-2-methyl-4-isothiazoline-3-ketone of 0.15%, 0.5% poly-methyl triethyl silicane, two (dioctyl pyrophosphate) hydroxyethanoic acid titanium of 0.15% add in the deionized water, stir and they were mixed in 5 minutes, add nanometer SiO then
2Powder stirred 30 minutes, at last the mixed slurry component was added ball milling 48h in the ball mill, and until forming uniform thick soup compound, the soup compound pH value is controlled between the 8-9, makes UV light stabilizing agent for water building outer wall coating material of the present invention.
Claims (3)
1, a kind of preparation method of UV light stabilizing agent for water building outer wall coating material is characterized in that: the raw material of UV light stabilizing agent for water building outer wall coating material is pressed column weight amount % batching:
Nanometer SiO
2Powder 20-40;
Polyoxyethylene nonylphenol ether 2-8;
2-amino-2-methyl-1-propanol 0.5-2.5;
1,2-propylene glycol 2-8;
5-chloro-2-methyl-4-isothiazoline-3-ketone 0.1-0.2;
Poly-methyl triethyl silicane 0.3-0.7;
Two (dioctyl pyrophosphate) hydroxyethanoic acid titanium 0.1-0.3;
Deionized water 58-66;
Each raw material weight per-cent sum of UV light stabilizing agent is 100%.
2, the preparation method of a kind of UV light stabilizing agent for water building outer wall coating material according to claim 1, it is characterized in that: by following processing step preparation, polyoxyethylene nonylphenol ether, 2-amino-2-methyl-1-propanol, 1,2-propylene glycol, 5-chloro-2-methyl-4-isothiazoline-3-ketone, poly-methyl triethyl silicane, two (dioctyl pyrophosphate) hydroxyethanoic acid titanium add in the deionized water, stir and they were mixed in 5-10 minute, add nanometer SiO then
2Powder stirred 20-40 minute, at last the mixed slurry component was added ball milling 43-53h in the ball mill, and until forming uniform thick soup compound, soup compound is that the pH value of UV light stabilizing agent is controlled between the 7-10.
3, a kind of UV light stabilizing agent for water building outer wall coating material preparation method according to claim 1, it is characterized in that: described polyoxyethylene nonylphenol ether molecular formula is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138614 CN1185311C (en) | 2001-12-28 | 2001-12-28 | Preparation method of UV light stabilizing agent for water building outer wall coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138614 CN1185311C (en) | 2001-12-28 | 2001-12-28 | Preparation method of UV light stabilizing agent for water building outer wall coating material |
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|---|---|
| CN1428380A CN1428380A (en) | 2003-07-09 |
| CN1185311C true CN1185311C (en) | 2005-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01138614 Expired - Fee Related CN1185311C (en) | 2001-12-28 | 2001-12-28 | Preparation method of UV light stabilizing agent for water building outer wall coating material |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344716C (en) * | 2004-08-18 | 2007-10-24 | 天津中油渤星工程科技股份有限公司 | Elastic paint for exterior wall decoration and its manufacturing method |
| JP5084143B2 (en) * | 2005-02-14 | 2012-11-28 | 株式会社Ａｄｅｋａ | Light stabilizer emulsion composition |
| CN102040877B (en) * | 2010-09-29 | 2013-05-22 | 上海东升新材料有限公司 | Composite light-resistant color enhancer composition for exterior wall coating |
| CN103525211B (en) * | 2013-09-16 | 2016-01-20 | 安徽欧尚建材有限公司 | A kind of exterior wall latex coating |
| CN106634145A (en) * | 2016-09-29 | 2017-05-10 | 东至绿洲环保化工有限公司 | Organosilicon weathering agent for external spray coating for elevated support formwork |
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2001
- 2001-12-28 CN CN 01138614 patent/CN1185311C/en not_active Expired - Fee Related
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Assignee: Beijing Bbmg Cement Energy Technology Co., Ltd. Assignor: Beijing nanomei Technology Development Co., Ltd.|Beijing Building Materials Research Institute Co. Ltd. Contract record no.: 2010110000068 Denomination of invention: Preparation method of UV light stabilizing agent for water building outer wall coating material Granted publication date: 20050119 License type: Exclusive License Open date: 20030709 Record date: 20100621 |
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