CN1238449C - Organic montmorrilonite modified silicon polyacrylicresin outer wall paint - Google Patents
Organic montmorrilonite modified silicon polyacrylicresin outer wall paint Download PDFInfo
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- CN1238449C CN1238449C CN 02128131 CN02128131A CN1238449C CN 1238449 C CN1238449 C CN 1238449C CN 02128131 CN02128131 CN 02128131 CN 02128131 A CN02128131 A CN 02128131A CN 1238449 C CN1238449 C CN 1238449C
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Abstract
The present invention relates to organic montmorillonite modified silicon polyacrylicresin outer wall paint which is formed by the way that organic montmorillonite inserting layers are stripped into nanometer-size sheet layers and are uniformly dispersed into silicon acrylic paint made by the method of solvent polymerization. Thus, the paint has the advantages of excellent combination performance higher than that of the common silicon acrylic paint, strong automatic cleaning function, high dirt resistance, high weather resistance, excellent scrubbing resistance, unique bacteria resistance, etc. The paint has a wide application prospect in the aspect of the outer wall decoration of high buildings and super-high buildings.
Description
The present invention relates to a kind of organic montmorrilonite modified silicon polyacrylicresin outer wall paint, be specially adapted to the decoration of exterior wall of high-rise high-rise building.
Along with the fast development of Chinese national economy, the rapid emergence of high level, high-rise building has also proposed higher decoration requirement to buildings, rich color, and construction is simple, and long-lived high-performance building coating more and more is subject to people's attention.Organic-silicon-modified acrylate paint combines the premium properties of organosilicon and propylene ester, is the exterior coating of tool DEVELOPMENT PROSPECT with fastest developing speed.Yet no matter present silicon-acrylic coatings is to adopt solution polymerization or adopt letex polymerization, all is to be equipped with common fillers and to make, for example CN99112498.7.Although the over-all properties of these coating is than vinegar the third, phenylpropyl alcohol, pure acrylate dope improve a lot, but still be difficult to satisfy high-rise and the high-rise building decoration of exterior wall to high-weatherability, contamination resistance, the requirement of aspects such as abrasion resistance.
The object of the invention is exactly that a kind of good contamination resistance that has, the external wall of high-rise building coating of weathering resistance and abrasion resistance will be provided.
Organic montmorrilonite modified silicon polyacrylicresin outer wall paint of the present invention is by mixed solvent, silicon third resin, and organic montmorillonoid and sodium laurylsulfonate are by weight 1: (0.3-0.7): (0.05-0.2): (0.005-0.02) form by solution polymerization.Wherein mixed solvent is the mixed solvent of containing benezene and halohydrocarbon not, and vinyl acetic monomer, No. 120 gasoline, hexanaphthene, ethanol were by weight 1.0: 1.0: 0.3: 1.0 mixture; Silicon third resin is a methyl methacrylate, ethyl propenoate, and methacrylic acid, organosilicon pre-polymerization basis, composite initiator is by weight 1.0: (0,5-0.8): (0.3-0.5): (0.2-0.5): (0.005-0.01) copolymerization forms; Organic montmorillonoid is for handling expanded polynite through cetyl trimethylammonium bromide.
The organosilicon performed polymer is a vinyltriethoxysilane, octamethylcyclotetrasiloxane, and isopropyl benzene hydroperoxide is by weight 1.0: (0.5-0.8): (0.005-0.01) copolymerization forms.Composite initiator is benzoyl peroxide and 1: 1 mixture of isopropyl benzene hydroperoxide.
The preparation method of organic montmorrilonite modified silicon polyacrylicresin outer wall paint of the present invention is with mixed solvent (vinyl acetic monomer, No. 120 gasoline, hexanaphthene, ethanol 1.0: 1.0: 0.3: 1.0 mixture), silicon third resin, organic montmorillonoid and sodium laurylsulfonate add reactor successively by aforementioned weight ratio, are warming up to 50-90 ℃ and open stirring, rotating speed 120-150 rev/min, stirred 3-5 hour.Wherein silicon third resin is with methyl methacrylate, ethyl propenoate, methacrylic acid, the organosilicon performed polymer, composite initiator (1: 1 mixture of benzoyl peroxide and isopropyl benzene hydroperoxide) adds reactor by aforementioned weight ratio, open 80 rev/mins of stirring, rotating speeds,, reduce to room temperature then 50-100 ℃ of reaction 3-12 hour.Organic montmorillonoid is that the sodium-based montmorillonite aqueous solution with 5% weight ratio concentration is in 80 ℃ of cetyl trimethylammonium bromide aqueous solution that agitation and dropping is excessive, suction filtration after 1 hour, and wash with water to no Br-(bromide anion), vacuum-drying is to constant weight, and is milled to 500 powder.
The preparation of organosilicon performed polymer is with vinyltriethoxysilane, octamethylcyclotetrasiloxane, isopropyl benzene hydroperoxide adds reactor by aforementioned weight ratio, opens and stirs, 80 rev/mins of rotating speeds, be warming up to 80-100 ℃ of reaction 4-6 hour, and then be warming up to 130-160 ℃ of insulation 0.5-1 hour, open vacuum pump, decompression removes low-boiling-point substance, reduce to 13.3KPa to the still internal pressure, finish reaction, cooling discharge during 150 ℃ of temperature.
The optimum weight proportioning of organic montmorrilonite modified silicon polyacrylicresin outer wall paint of the present invention, mixed solvent: silicon third resin: organic montmorillonoid: sodium laurylsulfonate is 1.0: 0.5: 0.1: 0.01.Wherein, methyl methacrylate in silicon third resin: ethyl propenoate: methacrylic acid: organosilicon performed polymer: composite initiator is 1.0: 0.6: 0.4: 0.3: 0.008; Vinyltriethoxysilane in the organosilicon performed polymer: octamethylcyclotetrasiloxane: isopropyl benzene hydroperoxide is 1.0: 0.5: 0.01.
Polynite is the hydrous alumino silicates mineral, and crystal is a sandwich structure, utilizes cationic interchangeability between its crystal layer, organic cation is introduced made the polynite that organises between crystal layer.Organic montmorillonoid has lipophilicity, after joining in the silicon-acrylic coatings as filler, under the brute force shearing and chemical force effect of high-speed stirring, peel off to the very little structure lamella of sodium meter ruler, evenly spread in the polymkeric substance, the small-size effect of performance nano material, surface effects and quantum effect, thereby invest coating good comprehensive performances of the present invention, except that the performance that possesses general silicon-acrylic coatings, also have: 1. extremely strong self-cleaning function.Dust and dirt are washed or use the clear water wash clean automatically by rainwater easily; 2. high contamination resistance.Contamination resistance test shows, reflection coefficient reduced rate only are about 6%, far below 10% of standard code; 3. high patience.Can stand the test of temper(ing) experiment 1500h, be equivalent to the usage period of natural weathering more than 15 years; 4. good abrasion resistance.Abrasion resistance experiment measured value is about 20,000 times, is much higher than the kind organism generation oxidizing reaction of national Specification, thereby most germ and virus are killed.Actual measurement shows that total plate count bacteriostasis rate of the present invention is 100%, and the intestinal bacteria bacteriostasis rate is 100%.So the present invention has very good prospects for application as the exterior coating of high-rise and high-rise building.
Embodiment one, the preparation of organosilicon performed polymer
With vinyltriethoxysilane, octamethylcyclotetrasiloxane, isopropyl benzene hydroperoxide dropped into reactor by weight 1.0: 0.5: 0.01, opened and stirred, 80 rev/mins, 80-100 ℃ of reaction 4-6 hour, 130-160 ℃ of down insulation 0.5-1 hour, decompression removes low-boiling-point substance, reduces to 13.3KPa to the still internal pressure, when being 150 ℃, temperature finishes reaction, cooling discharge.
The preparation of embodiment two, silicon third resin
With methyl methacrylate, ethyl propenoate, methacrylic acid, organosilicon performed polymer, composite initiator (1: 1 mixture of benzoyl peroxide and isopropyl benzene hydroperoxide) were by weight 1.0: 0.6: 0.4: successively drop into reactor at 0.3: 0.008, open and stir, 80 rev/mins of rotating speeds, controlled temperature is reduced to room temperature then 50-100 ℃ of scope internal reaction 3-12 hour.
The preparation of embodiment three, organic montmorillonoid
The sodium-based montmorillonite aqueous solution of 5% weight ratio concentration at 80 ℃, is stirred and drips the excessive cetyl trimethylammonium bromide aqueous solution down, and 1 hour suction filtration is washed to no Br-(bromide anion), and constant weight is arrived in vacuum-drying, and is milled to 500 order powders.
The preparation of embodiment four, organic montmorrilonite modified silicon polyacrylicresin outer wall paint
With mixed solvent (vinyl acetic monomer, 120# gasoline, hexanaphthene, ethanol 1.0: 1.0: 0.3: 1.0 mixture), silicon third resin, organic montmorillonoid and sodium laurylsulfonate were by weight 1: 0.5: 0.1: 0.01 adds reactor successively, be warming up to 50-90 ℃, open and stir, rotating speed 120-150 rev/min, stirred 3-5 hour.
Claims (6)
1. silicon polyacrylicresin outer wall paint, it is characterized in that: mixed solvent, silicon third resin, organic montmorillonoid and sodium laurylsulfonate are by weight 1: (0.3-0.7): (0.05-0.2): (0.005-0.02), form by solution polymerization, wherein 1. mixed solvent be vinyl acetic monomer, No. 120 solvent oils, hexanaphthene, ethanol by weight 1.0: 1.0: 0.3: 1.0 mixture; 2. silicon third resin is a methyl methacrylate, ethyl propenoate, methacrylic acid, the organosilicon performed polymer, composite initiator is by weight 1.0: (0.5-0.8): (0.3-0.5): (0.2-0.5): (0.005-0.01) high molecular polymer that forms of copolymerization, organosilicon performed polymer wherein is by vinyltriethoxysilane, octamethylcyclotetrasiloxane, isopropyl benzene hydroperoxide is by weight 1.0: (0.5-0.8): (0.005-0.01) high molecular polymer that forms of copolymerization, and composite initiator is benzoyl peroxide and isopropyl benzene hydroperoxide by weight 1: 1 mixture; 3. organic montmorillonoid is for handling expanded polynite through cetyl trimethylammonium bromide.
2. silicon polyacrylicresin outer wall paint as claimed in claim 1, it is characterized in that the organosilicon performed polymer is a vinyltriethoxysilane, octamethylcyclotetrasiloxane, isopropyl benzene hydroperoxide are by weight 1.0: (0.5-0.8): (0.005-0.01) high molecular polymer that forms of copolymerization.
3. silicon polyacrylicresin outer wall paint as claimed in claim 1 is characterized in that composite initiator is benzoyl peroxide and 1: 1 mixture of isopropyl benzene hydroperoxide.
4. silicon polyacrylicresin outer wall paint as claimed in claim 1, it is characterized in that: mixed solvent, silicon third resin, the weight proportion of organic montmorillonoid and sodium laurylsulfonate is 1.0: 0.5: 0.1: 0.01, wherein: organosilicon acrylic resin is methyl methacrylate, ethyl propenoate, methacrylic acid, and organosilicon performed polymer, composite initiator weight proportion are 1.0: 0.6: 0.4: copolymerization in 0.3: 0.008 forms; Wherein the organosilicon performed polymer is by vinyltriethoxysilane, and octamethylcyclotetrasiloxane, the weight proportion of isopropyl benzene hydroperoxide are that copolymerization in 1.0: 0.5: 0.01 forms, and compound to draw agent be benzoyl peroxide and 1: 1 mixture of isopropyl benzene hydroperoxide.
5. one kind as power require the preparation method of 1 described silicon polyacrylicresin outer wall paint, it is characterized in that mixture, silicon third resin, organic montmorillonoid and sodium laurylsulfonate drop into reactor successively by the described weight ratio of claim 1, be warming up to 50-90 ℃, open and stir, rotating speed 120-150 rev/min, stirred 3-5 hour, wherein the preparation of silicon third resin is with methyl methacrylate, ethyl propenoate, methacrylic acid, the organosilicon performed polymer, composite initiator adds reactor by the described weight ratio of claim 1, open and stir, 80 rev/mins of rotating speeds 50-100 ℃ of reaction 3-12 hour, are reduced to room temperature then; Organic montmorillonoid preparation be the aqueous solution with the sodium-based montmorillonite of 5% weight ratio concentration in 80 ℃ of cetyl trimethylammonium bromide aqueous solution that agitation and dropping is excessive, suction filtration after 1 hour, and washing with water to no Br
-(bromide anion), vacuum-drying be to constant weight, and be milled to 500 order powder.
6. the preparation method of silicon polyacrylicresin outer wall paint as claimed in claim 1, the preparation that it is characterized in that the organosilicon performed polymer is with vinyltriethoxysilane, octamethylcyclotetrasiloxane, isopropyl benzene hydroperoxide adds reactor by the described weight ratio of claim 2, open and stir, 80 rev/mins of rotating speeds, be warming up to 80-100 ℃ of reaction 4-6 hour, and then be warming up to 130-160 ℃ the insulation 0.5-1 hour, open vacuum pump, decompression removes low-boiling-point substance, reduces to 13.3Kpa to the still internal pressure, finish reaction, cooling discharge during 150 ℃ of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02128131 CN1238449C (en) | 2002-12-30 | 2002-12-30 | Organic montmorrilonite modified silicon polyacrylicresin outer wall paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02128131 CN1238449C (en) | 2002-12-30 | 2002-12-30 | Organic montmorrilonite modified silicon polyacrylicresin outer wall paint |
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| CN1511902A CN1511902A (en) | 2004-07-14 |
| CN1238449C true CN1238449C (en) | 2006-01-25 |
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| CN 02128131 Expired - Fee Related CN1238449C (en) | 2002-12-30 | 2002-12-30 | Organic montmorrilonite modified silicon polyacrylicresin outer wall paint |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2422608B (en) | 2004-12-30 | 2008-10-01 | Ind Tech Res Inst | Self-cleaning coating comprising hydrophobically-modified particles |
| CN100368445C (en) * | 2006-05-18 | 2008-02-13 | 中山大学 | Preparation method and application of organosilicon acrylate/nanometer clay composite emulsion |
| CN102226057B (en) * | 2010-12-31 | 2013-04-10 | 西安经建油漆股份有限公司 | Self-crosslinking organosilicone heat-resistant coating |
| CN102180731B (en) * | 2011-02-16 | 2013-07-17 | 成都正光投资集团有限公司 | Polymer emulsion coated slow release fertilizer taking nanomaterial as carrier and preparation method thereof |
| CN104312357A (en) * | 2014-10-15 | 2015-01-28 | 合肥环照高分子材料厂 | Texture decoration outer wall coating |
| CN105175765A (en) * | 2015-09-18 | 2015-12-23 | 颍上县龙裕扬工贸有限公司 | Brightening paste for decorating and processing plastic product |
| CN105907305B (en) * | 2016-06-28 | 2018-04-20 | 安阳华森纸业有限责任公司 | The preparation method of flame-retardant waterproof coating |
| CN111500173B (en) * | 2020-03-31 | 2021-07-02 | 东华大学 | A kind of reinforced antifouling polymer coating with self-healing properties and its preparation |
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- 2002-12-30 CN CN 02128131 patent/CN1238449C/en not_active Expired - Fee Related
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