CN104946041A - Ageing-resistant coating for exterior walls - Google Patents
Ageing-resistant coating for exterior walls Download PDFInfo
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- CN104946041A CN104946041A CN201510295964.8A CN201510295964A CN104946041A CN 104946041 A CN104946041 A CN 104946041A CN 201510295964 A CN201510295964 A CN 201510295964A CN 104946041 A CN104946041 A CN 104946041A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses an ageing-resistant coating for exterior walls. Raw materials of the coating comprise the following ingredients, by weight, 50-65 parts of an acrylic emulsion, 30-45 parts of an organosilicone modified vinyl acetate-ethene copolymer emulsion, 3-15 parts of polystyrene, 2-8 parts of meerschaum, 3-10 parts of nanometer titania, 3-8 parts of hollow glass microspheres, 1-5 parts of iron oxide red, 1-3 parts of sodium carboxymethylcellulose, 0.1-0.5 part of sodium polyacrylate, 0.2-0.5 part of sodium hexametaphosphate, 1-4 parts of oxidized starch, 0.5-2 parts of an antifoaming agent, 0.1-0.5 part of a leveling agent, 2-10 parts of a coalescing agent and 5-20 parts of water. The ageing-resistant coating for exterior walls has high strength, good strain resistance and excellent aging resistance and has long service life when used as an exterior wall coating.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to the special aging resistant coating of a kind of exterior wall.
Background technology
Exterior coating rich color, facing is versatile and flexible, can the design style of expressed in abundance, has easy construction, maintenance update easily, from heavy and light, safe and reliable advantage, becoming the leading of China's external wall finishing material.Coating as exterior wall requires to have following characteristics: (1) good decorative property, requires exterior coating rich color and unfading is excellent, can keep original ornamental the long period; (2) good weatherability, because exposing in an atmosphere, the effect such as stand wind, Exposure to Sunlight, drench with rain, the phenomenons such as coating easily ftractures, peel off, variable color, thus lose original decoration defencive function; (3) contamination resistance is good, and exterior coating should have good contamination resistance, make coating not easily contaminated or pollute after easily washed; (4) water-tolerant, exterior coating exposes in an atmosphere, and often can be subject to rainwash, exterior coating should have good water tolerance; In addition, exterior coating also needs to have the resistance to mould sex change that high elasticity is become reconciled.Along with the development of society, the performance of people's External Wall is had higher requirement, and its intensity of existing exterior coating, contamination resistance and ageing resistance are not good enough, limit the application of exterior coating.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes the special aging resistant coating of a kind of exterior wall, its intensity is high, and contamination resistance is good, and ageing-resistant performance is excellent, as exterior coating long service life.
The special aging resistant coating of a kind of exterior wall that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 50-65 part, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 30-45 part, polystyrene 3-15 part, sepiolite 2-8 part, nano titanium oxide 3-10 part, hollow glass microballoon 3-8 part, red iron oxide 1-5 part, Xylo-Mucine 1-3 part, sodium polyacrylate 0.1-0.5 part, Sodium hexametaphosphate 99 0.2-0.5 part, Sumstar 190 1-4 part, defoamer 0.5-2 part, flow agent 0.1-0.5 part, film coalescence aid 2-10 part, water 5-20 part.
In a particular embodiment, the special aging resistant coating of a kind of exterior wall that the present invention proposes, in its raw material, the weight part of ACRYLIC EMULSION can be 50,52,53,53.6,54,56,58,59,59.3,61,62,62.3,63,64,64.5,65 parts; The weight part of organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions can be 30,32,34,35,36.3,38,39,39.4,40,40.6,41,42,43,43.5,44,44.6,45 parts; The weight part of polystyrene can be 3,4,5,5.3,6,6.7,7,7.5,8,8.6,9,9.3,10,10.3,11,11.2,13,13.6,14,14.5,15 parts; The weight part of sepiolite can be 2,2.3,2.8,3,3.4,4,4.5,5,5.3,6,6.3,7,7.4,8 parts; The weight part of nano titanium oxide can be 3,3.8,4,4.5,5,5.6,6,6.3,7,7.4,8,8.6,9,9.4,10 parts; The weight part of hollow glass microballoon can be 3,3.2,3.8,4,4.5,5,5.6,6,6.3,7,7.4,8 parts; The weight part of red iron oxide can be 1,1.2,1.6,1.85,2,2.3,2.6,2.7,3,3.4,3.7,4,4.5,4.68,5 part; The weight part of Xylo-Mucine can be 1,1.2,1.3,1.56,1.8,1.86,1.9,2,2.3,2.5,2.68,2.8,2.9,2.94,3 part; The weight part of sodium polyacrylate can be 0.1,0.12,0.18,0.2,0.23,0.28,0.3,0.34,0.4,0.46,0.5 part; The weight part of Sodium hexametaphosphate 99 can be 0.2,0.26,0.3,0.34,0.4,0.42,0.48,0.5 part; The weight part of Sumstar 190 can be 1,1.2,1.56,1.8,2,2.3,2.56,2.8,3,3.4,3.75,4 part; The weight part of defoamer can be 0.5,0.56,0.8,0.9,0.94,1,1.2,1.35,1.6,1.85,1.9,1.94,2 part; The weight part of flow agent can be 0.1,0.15,0.2,0.26,0.3,0.34,0.4,0.47,0.5 part; The weight part of film coalescence aid can be 2,2.3,2.5,2.85,3,3.4,4,4.6,5,5.3,6,6.7,7,7.5,8,8.6,9,9.4,10 parts, the weight part of water can be 5,6,7,8,8.6,9,9.3,10,10.6,11,11.3,12,12.6,13,15,16,18,18.6,19,19.4,20 parts.
Preferably, in its raw material, the weight ratio of ACRYLIC EMULSION, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions, polystyrene is 55-62:38-43:7-12.
Preferably, in its raw material, the weight ratio of sepiolite, nano titanium oxide, hollow glass microballoon, red iron oxide is 3-7:5-10:4-7:2-4.
Preferably, its raw material comprises following component by weight: ACRYLIC EMULSION 58-61 part, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 40-43 part, polystyrene 9-11 part, sepiolite 4.5-6.5 part, nano titanium oxide 7-8.5 part, hollow glass microballoon 5-6.7 part, red iron oxide 3-4.2 part, Xylo-Mucine 1.8-2.4 part, sodium polyacrylate 0.25-0.4 part, Sodium hexametaphosphate 99 0.32-0.4 part, Sumstar 190 2.1-2.8 part, defoamer 0.9-1.4 part, flow agent 0.25-0.4 part, film coalescence aid 5-8 part, water 10-16 part.
Preferably, its raw material comprises following component by weight: ACRYLIC EMULSION 60 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 42 parts, polystyrene 10 parts, sepiolite 6 parts, nano titanium oxide 7.6 parts, hollow glass microballoon 5.8 parts, red iron oxide 3.9 parts, Xylo-Mucine 2 parts, sodium polyacrylate 0.35 part, Sodium hexametaphosphate 99 0.38 part, Sumstar 190 2.4 parts, defoamer 1 part, flow agent 0.3 part, film coalescence aid 7 parts, 13.6 parts, water.
Preferably, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: polyvinyl alcohol is added deionized water for stirring and dissolve, then add sodium lauryl sulphate, obtains emulsion after being warming up to 95-100 DEG C of stirring; In emulsion, add the vinyl acetate of 20-35wt% in units of vinyl acetate mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1-1.5MPa, stirring is warming up to 70-85 DEG C, then ammonium persulfate solution is added, stirring reaction 1-3h, then add Diisopropyl azodicarboxylate, γ-methacryloxypropyl trimethoxy silane, vinyl silane triisopropoxide and remaining vinyl acetate successively, after reaction 0.8-2h, obtain described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions through cooling, discharging.
Preferably, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 2-10 part polyvinyl alcohol is added 15-30 part deionized water for stirring and dissolve, then add 0.1-1 part sodium lauryl sulphate, after being warming up to 95-100 DEG C of stirring, obtain emulsion, in the emulsion obtained, add 10-15 part vinyl acetate mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1-1.5MPa, stirring is warming up to 70-85 DEG C, then 2-5 part ammonium persulfate solution is added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 2-5%, stirring reaction 1-3h, then 0.1-0.5 part Diisopropyl azodicarboxylate is added successively, 2-6 part γ-methacryloxypropyl trimethoxy silane, 1-3.5 part vinyl silane triisopropoxide and 35-40 part vinyl acetate, through cooling after reaction 0.8-2h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
Preferably, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 7 parts of polyvinyl alcohol are added 15 parts of deionized water for stirring and dissolve, then add 0.3 part of sodium lauryl sulphate, after being warming up to 98 DEG C of stirrings, obtain emulsion, in the emulsion obtained, add 13 parts of vinyl acetates mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1.2MPa, stirring is warming up to 80 DEG C, then 2.5 parts of ammonium persulfate solutions are added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 3%, stirring reaction 2.2h, then 0.36 part of Diisopropyl azodicarboxylate is added successively, 3 parts of γ-methacryloxypropyl trimethoxy silane, 2.6 parts of vinyl silane triisopropoxides and 38 parts of vinyl acetates, through cooling after reaction 1.6h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
Preferably, the median size of nano titanium oxide is 5-10nm.
Preferably, described film coalescence aid is one or more the combination in ethylene glycol monobutyl ether, propylene glycol, mannitol.
The special aging resistant coating of exterior wall described in the present invention can Paint preparation technology conveniently, is mixed by each raw material and obtains.
ACRYLIC EMULSION has excellent weathering resistance, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions has excellent water tolerance, ACRYLIC EMULSION is have selected and organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions cooperatively interacts as the filmogen of coating in the present invention, and with the addition of polystyrene, the performance of ACRYLIC EMULSION and organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is worked in coordination with, give the weathering resistance of coating excellence, water tolerance, improve the ageing resistance of coating, with the sticking power of base material, and by controlling ACRYLIC EMULSION, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions, the content of polystyrene, particle surface polarity in emulsion is significantly changed, improve the contamination resistance of coating, the cooperation of sepiolite, nano titanium oxide, hollow glass microbead, red iron oxide joins in system as color stuffing, by controlling the ratio of four, and with the addition of sodium polyacrylate and Sodium hexametaphosphate 99, make color stuffing good dispersity in system, improve hardness and the thermotolerance of coating, and give the germ resistance of coating excellence, improve the contamination resistance of coating, improve the ageing resistance of coating.
In the present invention, by selecting suitable raw material, and optimize the content of each raw material, the opacifying power of the special aging resistant coating of the exterior wall obtained is good, and intensity is high, water-proofing anticracking, water-fast, ageing-resistant, and good decorative property.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
The special aging resistant coating of a kind of exterior wall that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 50 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 45 parts, polystyrene 3 parts, sepiolite 8 parts, nano titanium oxide 3 parts, hollow glass microballoon 8 parts, red iron oxide 1 part, Xylo-Mucine 3 parts, sodium polyacrylate 0.1 part, Sodium hexametaphosphate 99 0.5 part, Sumstar 190 1 part, defoamer 2 parts, flow agent 0.1 part, film coalescence aid 10 parts, 5 parts, water; Wherein, the median size of nano titanium oxide is 5nm; Described film coalescence aid is the combination of ethylene glycol monobutyl ether, propylene glycol, mannitol, and the weight ratio of ethylene glycol monobutyl ether, propylene glycol, mannitol is 1:3:2.
Performance Detection is carried out to the special aging resistant coating of exterior wall in the present embodiment, its outward appearance is full, smooth, good without lump, glossiness; Carry out 10000 anti-corrosion test films without breakage; 2000h artificial ageing resistance test film non-foaming, do not peel off, flawless; Alkali resistance 200h film is without exception.
Embodiment 2
The special aging resistant coating of a kind of exterior wall that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 65 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 30 parts, polystyrene 15 parts, sepiolite 2 parts, nano titanium oxide 10 parts, hollow glass microballoon 3 parts, red iron oxide 5 parts, Xylo-Mucine 1 part, sodium polyacrylate 0.5 part, Sodium hexametaphosphate 99 0.2 part, Sumstar 190 4 parts, defoamer 0.5 part, flow agent 0.5 part, ethylene glycol monobutyl ether 2 parts, 20 parts, water; Wherein, the median size of nano titanium oxide is 10nm;
Wherein, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 8 parts of polyvinyl alcohol are added 22 parts of deionized water for stirring and dissolve, then add 0.6 part of sodium lauryl sulphate, after being warming up to 97 DEG C of stirrings, obtain emulsion, in the emulsion obtained, add 13 parts of vinyl acetates mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1.28MPa, stirring is warming up to 82 DEG C, then 3.8 parts of ammonium persulfate solutions are added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 4%, stirring reaction 1.8h, then 0.29 part of Diisopropyl azodicarboxylate is added successively, 5.2 parts of γ-methacryloxypropyl trimethoxy silane, 2.8 parts of vinyl silane triisopropoxides and 37 parts of vinyl acetates, through cooling after reaction 1.6h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
Embodiment 3
The special aging resistant coating of a kind of exterior wall that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 60 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 42 parts, polystyrene 10 parts, sepiolite 6 parts, nano titanium oxide 7.6 parts, hollow glass microballoon 5.8 parts, red iron oxide 3.9 parts, Xylo-Mucine 2 parts, sodium polyacrylate 0.35 part, Sodium hexametaphosphate 99 0.38 part, Sumstar 190 2.4 parts, defoamer 1 part, flow agent 0.3 part, propylene glycol 3 parts, mannitol 4 parts, 13.6 parts, water; Wherein, the median size of nano titanium oxide is 8nm;
Wherein, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 2 parts of polyvinyl alcohol are added 30 parts of deionized water for stirring and dissolve, then add 0.1 part of sodium lauryl sulphate, after being warming up to 100 DEG C of stirrings, obtain emulsion, in the emulsion obtained, add 10 parts of vinyl acetates mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1.5MPa, stirring is warming up to 70 DEG C, then 5 parts of ammonium persulfate solutions are added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 2%, stirring reaction 3h, then 0.1 part of Diisopropyl azodicarboxylate is added successively, 6 parts of γ-methacryloxypropyl trimethoxy silane, 1 part of vinyl silane triisopropoxide and 40 parts of vinyl acetates, through cooling after reaction 0.8h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
Embodiment 4
The special aging resistant coating of a kind of exterior wall that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 58 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 43 parts, polystyrene 9 parts, sepiolite 6.5 parts, nano titanium oxide 7 parts, hollow glass microballoon 6.7 parts, red iron oxide 3 parts, Xylo-Mucine 2.4 parts, sodium polyacrylate 0.25 part, Sodium hexametaphosphate 99 0.4 part, Sumstar 190 2.1 parts, defoamer 1.4 parts, flow agent 0.25 part, ethylene glycol monobutyl ether 1 part, propylene glycol 3 parts, mannitol 4 parts, 10 parts, water;
Wherein, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 10 parts of polyvinyl alcohol are added 15 parts of deionized water for stirring and dissolve, then add 1 part of sodium lauryl sulphate, after being warming up to 95 DEG C of stirrings, obtain emulsion, in the emulsion obtained, add 15 parts of vinyl acetates mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1MPa, stirring is warming up to 85 DEG C, then 2 parts of ammonium persulfate solutions are added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 5%, stirring reaction 1h, then 0.5 part of Diisopropyl azodicarboxylate is added successively, 2 parts of γ-methacryloxypropyl trimethoxy silane, 3.5 parts of vinyl silane triisopropoxides and 35 parts of vinyl acetates, through cooling after reaction 2h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
Embodiment 5
The special aging resistant coating of a kind of exterior wall that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 61 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 40 parts, polystyrene 11 parts, sepiolite 4.5 parts, nano titanium oxide 8.5 parts, hollow glass microballoon 5 parts, red iron oxide 4.2 parts, Xylo-Mucine 1.8 parts, sodium polyacrylate 0.4 part, Sodium hexametaphosphate 99 0.32 part, Sumstar 190 2.8 parts, defoamer 0.9 part, flow agent 0.4 part, film coalescence aid 5 parts, 16 parts, water;
Wherein, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 7 parts of polyvinyl alcohol are added 15 parts of deionized water for stirring and dissolve, then add 0.3 part of sodium lauryl sulphate, after being warming up to 98 DEG C of stirrings, obtain emulsion, in the emulsion obtained, add 13 parts of vinyl acetates mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1.2MPa, stirring is warming up to 80 DEG C, then 2.5 parts of ammonium persulfate solutions are added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 3%, stirring reaction 2.2h, then 0.36 part of Diisopropyl azodicarboxylate is added successively, 3 parts of γ-methacryloxypropyl trimethoxy silane, 2.6 parts of vinyl silane triisopropoxides and 38 parts of vinyl acetates, through cooling after reaction 1.6h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. the special aging resistant coating of exterior wall, it is characterized in that, its raw material comprises following component by weight: ACRYLIC EMULSION 50-65 part, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 30-45 part, polystyrene 3-15 part, sepiolite 2-8 part, nano titanium oxide 3-10 part, hollow glass microballoon 3-8 part, red iron oxide 1-5 part, Xylo-Mucine 1-3 part, sodium polyacrylate 0.1-0.5 part, Sodium hexametaphosphate 99 0.2-0.5 part, Sumstar 190 1-4 part, defoamer 0.5-2 part, flow agent 0.1-0.5 part, film coalescence aid 2-10 part, water 5-20 part.
2. the special aging resistant coating of exterior wall according to claim 1, it is characterized in that, in its raw material, the weight ratio of ACRYLIC EMULSION, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions, polystyrene is 55-62:38-43:7-12.
3. the special aging resistant coating of exterior wall according to claim 1 or 2, is characterized in that, in its raw material, the weight ratio of sepiolite, nano titanium oxide, hollow glass microballoon, red iron oxide is 3-7:5-10:4-7:2-4.
4. the special aging resistant coating of exterior wall according to any one of claim 1-3, it is characterized in that, its raw material comprises following component by weight: ACRYLIC EMULSION 58-61 part, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 40-43 part, polystyrene 9-11 part, sepiolite 4.5-6.5 part, nano titanium oxide 7-8.5 part, hollow glass microballoon 5-6.7 part, red iron oxide 3-4.2 part, Xylo-Mucine 1.8-2.4 part, sodium polyacrylate 0.25-0.4 part, Sodium hexametaphosphate 99 0.32-0.4 part, Sumstar 190 2.1-2.8 part, defoamer 0.9-1.4 part, flow agent 0.25-0.4 part, film coalescence aid 5-8 part, water 10-16 part.
5. the special aging resistant coating of exterior wall according to any one of claim 1-4, it is characterized in that, its raw material comprises following component by weight: ACRYLIC EMULSION 60 parts, organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions 42 parts, polystyrene 10 parts, sepiolite 6 parts, nano titanium oxide 7.6 parts, hollow glass microballoon 5.8 parts, red iron oxide 3.9 parts, Xylo-Mucine 2 parts, sodium polyacrylate 0.35 part, Sodium hexametaphosphate 99 0.38 part, Sumstar 190 2.4 parts, defoamer 1 part, flow agent 0.3 part, film coalescence aid 7 parts, 13.6 parts, water.
6. the special aging resistant coating of exterior wall according to any one of claim 1-5, it is characterized in that, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: polyvinyl alcohol is added deionized water for stirring and dissolve, then add sodium lauryl sulphate, after being warming up to 95-100 DEG C of stirring, obtain emulsion; In emulsion, add the vinyl acetate of 20-35wt% in units of vinyl acetate mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1-1.5MPa, stirring is warming up to 70-85 DEG C, then ammonium persulfate solution is added, stirring reaction 1-3h, then add Diisopropyl azodicarboxylate, γ-methacryloxypropyl trimethoxy silane, vinyl silane triisopropoxide and remaining vinyl acetate successively, after reaction 0.8-2h, obtain described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions through cooling, discharging.
7. the special aging resistant coating of exterior wall according to any one of claim 1-6, it is characterized in that, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 2-10 part polyvinyl alcohol is added 15-30 part deionized water for stirring and dissolve, then add 0.1-1 part sodium lauryl sulphate, after being warming up to 95-100 DEG C of stirring, obtain emulsion, in the emulsion obtained, add 10-15 part vinyl acetate mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1-1.5MPa, stirring is warming up to 70-85 DEG C, then 2-5 part ammonium persulfate solution is added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 2-5%, stirring reaction 1-3h, then 0.1-0.5 part Diisopropyl azodicarboxylate is added successively, 2-6 part γ-methacryloxypropyl trimethoxy silane, 1-3.5 part vinyl silane triisopropoxide and 35-40 part vinyl acetate, through cooling after reaction 0.8-2h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
8. the special aging resistant coating of exterior wall according to any one of claim 1-7, it is characterized in that, described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions is prepared according to following technique: by weight 7 parts of polyvinyl alcohol are added 15 parts of deionized water for stirring and dissolve, then add 0.3 part of sodium lauryl sulphate, after being warming up to 98 DEG C of stirrings, obtain emulsion, in the emulsion obtained, add 13 parts of vinyl acetates mix, pass into nitrogen and discharge oxygen, then passing into ethene keeps pressure to be 1.2MPa, stirring is warming up to 80 DEG C, then 2.5 parts of ammonium persulfate solutions are added, wherein, in ammonium persulfate solution, the massfraction of ammonium persulphate is 3%, stirring reaction 2.2h, then 0.36 part of Diisopropyl azodicarboxylate is added successively, 3 parts of γ-methacryloxypropyl trimethoxy silane, 2.6 parts of vinyl silane triisopropoxides and 38 parts of vinyl acetates, through cooling after reaction 1.6h, discharging obtains described organic-silicon-modified vinyl acetate-ethylene copolymerization emulsions.
9. the special aging resistant coating of exterior wall according to any one of claim 1-8, is characterized in that, the median size of nano titanium oxide is 5-10nm.
10. the special aging resistant coating of exterior wall according to any one of claim 1-9, is characterized in that, described film coalescence aid is one or more the combination in ethylene glycol monobutyl ether, propylene glycol, mannitol.
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| CN105255300A (en) * | 2015-11-23 | 2016-01-20 | 宁波尚高新材料有限公司 | Macromolecule waterproof building coating and preparation method thereof |
| CN105440816A (en) * | 2015-12-24 | 2016-03-30 | 常熟市福达金属制件有限公司 | Ton barrel for paint production |
| CN107236389A (en) * | 2017-07-25 | 2017-10-10 | 芜湖乾凯材料科技有限公司 | Anti-aging coating of nano modification and preparation method thereof |
| CN108977073A (en) * | 2018-08-10 | 2018-12-11 | 安徽信达家居有限公司 | A kind of coating improving outdoor furniture ageing-resistant performance |
| CN111875734A (en) * | 2019-05-02 | 2020-11-03 | 大连化学工业股份有限公司 | Silicon modified vinyl acetate ethylene copolymers |
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| CN105255300A (en) * | 2015-11-23 | 2016-01-20 | 宁波尚高新材料有限公司 | Macromolecule waterproof building coating and preparation method thereof |
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