CN105176287A - Heat-resistant and flame-retardant modified acrylic emulsion paint - Google Patents
Heat-resistant and flame-retardant modified acrylic emulsion paint Download PDFInfo
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- CN105176287A CN105176287A CN201510547845.7A CN201510547845A CN105176287A CN 105176287 A CN105176287 A CN 105176287A CN 201510547845 A CN201510547845 A CN 201510547845A CN 105176287 A CN105176287 A CN 105176287A
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Abstract
The invention discloses a heat-resistant and flame-retardant modified acrylic emulsion paint. The paint comprises the following raw materials: acrylic emulsion, copolymer emulsion of vinyl acetate and ethylene, brominated epoxy resin, boron phenolic resin, zinc borate, nanometer magnesium hydroxide, hexamethylene tetramine, organic modified montmorillonite, sepiolite, nanometer silicon nitride, nanometer silicon carbide, aluminum tripolyphosphate, nanometer zinc oxide, nanometer aluminum oxide, ethanol, 2-ethyl-4-methylimidazole, polyvinylpyrrolidone, dodecyl mercaptan, 1,2-benzisothiazole-3-ketone, sodium carboxymethylcellulose, a defoaming agent and water. The heat-resistant and flame-retardant modified acrylic emulsion paint has the advantages of good heat resistance and water resistance, excellent weather resistance, good flame retardant effect, strong adhesive force with a substrate, and long service life.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of heat-proof combustion-resistant modified acrylic acid emulsion coating.
Background technology
Solvent based coating can in preparation and construction in a large number with an organic solvent, all there is very large harm, and cost be high to environment and operator.In recent years, along with improving constantly of people's environmental consciousness, the differentiation of the Water-borne modification of coating, solvent free and high solid has become the inexorable trend of paint development.
Water-borne coatings or be called water-based paint, take water as the coating that solvent or dispersion medium are made, it mainly comprises water soluble paint and water latex paint two class, its maximum feature is that whole or most of water instead of organic solvent, filmogen is dispersed or dissolved in water by different way uniformly, and paint film has the water-fast of similar solvent based coating and physicals in the dried or cured.The maximum feature of water-borne coatings is primary solvent with water, not only reduces production cost, greatly reduce environmental pollution, and have fire prevention, be easy to the features such as transport and storage, therefore has broad application prospects.
At present, along with the fast development of construction industry, especially high-weatherability, the applying of high energy saving building coating, the performance requriements of people to coating is more and more higher, its quality and quantity of existing water-borne coatings can not meet the demands, there is poor storage stability, heat-resistance of film, water tolerance and flame retardant effect are not very desirable defects.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of heat-proof combustion-resistant modified acrylic acid emulsion coating, its thermotolerance and water-tolerant, weather resistance is excellent, good flame retardation effect, with the strong adhesion of base material, and long service life.
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 20-35 part, brominated epoxy resin 5-15 part, boron bakelite resin 5-15 part, zinc borate 3-15 part, nano-sized magnesium hydroxide 5-15 part, hexamethylenetetramine 1-10 part, organic modification montmonrillonite 3-10 part, sepiolite 5-15 part, nano-silicon nitride 3-10 part, nanometer silicon carbide 2-10 part, aluminium triphosphate 2-10 part, nano zine oxide 3-10 part, nano aluminium oxide 2-10 part, ethanol 10-25 part, 2-ethyl-4-methylimidazole 1.5-5 part, polyvinylpyrrolidone 1-5 part, lauryl mercaptan 1-3 part, 1, 2-benzisothiazole-3-ketone 2-6 part, Xylo-Mucine 2-5 part, defoamer 1-2 part, water 30-50 part.
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, in its raw material, the weight part of ACRYLIC EMULSION can be 100 parts; The weight part of vinyl acetate-ethylene copolymerization emulsions can be 20,23,24,25,26,28,29,29.3,32,34,34.6,35 parts; The weight part of brominated epoxy resin can be 5,6,7,8,8.5,9,9.3,10,10.3,11,11.3,12,13,13.4,14,14.6,15 parts; The weight part of boron bakelite resin can be 5,6,7,8,8.5,9,9.3,10,10.3,11,11.6,12,13,13.4,14,14.6,15 parts; The weight part of zinc borate can be 3,4,5,6,8,9,9.6,10,12,13,13.4,14,14.6,15 parts; The weight part of nano-sized magnesium hydroxide can be 5,6,7,8,9,9.3,10,12,13,13.5,14,14.6,15 parts; The weight part of hexamethylenetetramine can be 1,2,3,4,5,6,8,9.6,10 part; The weight part of organic modification montmonrillonite can be 3,4,5,6,6.3,7,8,8.5,9,9.3,10 parts; The weight part of sepiolite can be 5,6,7,8,9,9.6,12,13,13.4,14,14.6,15 parts; The weight part of nano-silicon nitride can be 3,4,5,6,6.3,7,8,8.5,9,9.4,10 parts; The weight part of nanometer silicon carbide can be 2,3,4,5,6,6.3,7,8,8.5,9,9.4,10 parts; The weight part of aluminium triphosphate can be 2,3,4,5,6,6.3,7,8,9,9.4,10 parts; The weight part of nano zine oxide can be 3,4,5,6,6.3,7,8,8.5,9,9.4,10 parts; The weight part of nano aluminium oxide can be 2,3,4,5,6,6.3,7,8,8.5,9,9.4,10 parts; The weight part of ethanol can be 10,12,13,15,16,18,19,19.3,21,23,23.4,24,24.6,25 parts; The weight part of 2-ethyl-4-methylimidazole can be 1.5,2,2.3,2.8,3,3.4,3.7,4,4.2,4.6,4.8,5 parts; The weight part of polyvinylpyrrolidone can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.8,4,4.5,5 part; The weight part of lauryl mercaptan can be 1,1.2,1.8,2,2.1,2.3,2.38,2.4,2.6,2.8,3 part; The weight part of 1,2-benzisothiazole-3-ketone can be 2,3,4,4.2,4.8,5,5.3,6 parts; The weight part of Xylo-Mucine can be 2,2.3,2.8,3,3.4,3.8,4,4.2,4.8,5 parts; The weight part of defoamer can be 1,1.2,1.5,1.68,1.8,2 part; The weight part of water can be 30,32,35,38,42,45,48,49,49.3,50 parts.
Preferably, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 28-33 part, brominated epoxy resin 8-13 part, boron bakelite resin 8-12 part, zinc borate 8-10 part, nano-sized magnesium hydroxide 6-9 part, hexamethylenetetramine 5-7 part, organic modification montmonrillonite 5-8 part, sepiolite 9-13 part, nano-silicon nitride 6-8 part, nanometer silicon carbide 6-8 part, aluminium triphosphate 5-8 part, nano zine oxide 6-8 part, nano aluminium oxide 5-7 part, ethanol 16-21 part, 2-ethyl-4-methylimidazole 3.2-4 part, polyvinylpyrrolidone 2.8-3.5 part, lauryl mercaptan 1.6-2.3 part, 1, 2-benzisothiazole-3-ketone 3.9-4.6 part, Xylo-Mucine 3.5-4 part, defoamer 1.3-1.7 part, water 42-46 part.
Preferably, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 32 parts, brominated epoxy resin 11 parts, boron bakelite resin 10 parts, zinc borate 9.2 parts, nano-sized magnesium hydroxide 7 parts, hexamethylenetetramine 6 parts, organic modification montmonrillonite 7 parts, sepiolite 12 parts, nano-silicon nitride 7 parts, nanometer silicon carbide 7.3 parts, aluminium triphosphate 6 parts, nano zine oxide 7 parts, nano aluminium oxide 6 parts, ethanol 20 parts, 2-ethyl-4-methylimidazole 3.6 parts, polyvinylpyrrolidone 3.2 parts, lauryl mercaptan 2 parts, 1, 2-benzisothiazole-3-ketone 4 parts, Xylo-Mucine 3.6 parts, defoamer 1.5 parts, 45 parts, water.
Preferably, described ACRYLIC EMULSION is modified acrylic acid emulsion; Described modified acrylic acid emulsion is prepared according to following technique: 20-50 part octamethylcyclotetrasiloxane, 30-45 part t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.2-0.5 part sodium hydroxide by weight, stir and be warming up to 90-100 DEG C, reaction 0.5-1.5h, adjust ph is obtain material A after 7; By weight by 3-10 part vinyltrimethoxy silane, 5-10 part vinyl silane triisopropoxide, 5-15 part vinylformic acid-2,4,6-tribromophenyl, 10-25 part dodecafluoroheptyl methacrylate, 2-10 part vinylbenzene, 30-50 part methyl methacrylate, 20-50 part Hydroxyethyl acrylate mix and obtain material B; By weight 0.3-1 part sodium lauryl sulphate, 0.5-1.5 part polyoxyethylene octylphenol ether are added in 100-200 part water, stir at 30-38 DEG C, then 10-20 part material A and 10-20 serving material B is dripped, 10-25min is stirred at 80-90 DEG C, then 0.1-0.8 part Sodium Persulfate and 0.1-0.5 part sodium bisulfite is added, 0.1-0.5 part Sodium Persulfate is added again after stirring 20-50min, then drip 20-50 part material A and 30-50 serving material B, after stirring 50-120min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion.
Preferably, described ACRYLIC EMULSION is modified acrylic acid emulsion, described modified acrylic acid emulsion is prepared according to following technique: 30 parts of octamethylcyclotetrasiloxanes, 40 parts of t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.3 part of sodium hydroxide by weight, stir and be warming up to 95 DEG C, reaction 1h, adjust ph is obtain material A after 7, by weight by 7 parts of vinyltrimethoxy silanes, 8 parts of vinyl silane triisopropoxides, 10 parts of vinylformic acid-2,4,6-tribromophenyl, 20 parts of dodecafluoroheptyl methacrylates, 5 parts of vinylbenzene, 35 parts of methyl methacrylates, 28 parts of Hydroxyethyl acrylates mix and obtain material B, by weight 0.6 part of sodium lauryl sulphate, 0.9 part of polyoxyethylene octylphenol ether are added in 150 parts of water, stir at 38 DEG C, then 13 parts of material A and 12 serving material B are dripped, 20min is stirred at 85 DEG C, then 0.5 part of Sodium Persulfate and 0.3 part of sodium bisulfite is added, add 0.3 part of Sodium Persulfate again after stirring 40min, then drip 35 parts of material A and 40 serving material B, after stirring 100min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion, in the preparation process of modified acrylic acid emulsion, first have selected octamethylcyclotetrasiloxane and t etram-ethyltetravinylcyclotetrasiloxane carries out copolyreaction, generate copolymerization product, then with vinyltrimethoxy silane, vinyl silane triisopropoxide, vinylformic acid-2, 4, 6-tribromophenyl, dodecafluoroheptyl methacrylate, vinylbenzene modified synergic acrylic ester emulsion, simultaneously by silicon, in fluorine and bromo element introducing system, the modified acrylic acid emulsion obtained on the one hand has hydrophobic shape structure, as filmogen, improve the water tolerance of coating, in addition, vinyltrimethoxy silane, adding of vinyl silane triisopropoxide facilitates copolymerization product, vinylformic acid-2, 4, 6-tribromophenyl, dodecafluoroheptyl methacrylate, vinylbenzene and methyl methacrylate, the copolymerization of Hydroxyethyl acrylate, improve the cross-linking density of ACRYLIC EMULSION in film process, improve the sticking power of film, water tolerance, thermotolerance and flame retardant resistance.
Preferably, the median size of described nano-sized magnesium hydroxide is 15-35nm; The median size of described nano-silicon nitride is 10-25nm; The median size of described nanometer silicon carbide is 20-35nm; The median size of described nano zine oxide is 10-25nm; The median size of described nano aluminium oxide is 10-30nm.
Preferably, the mixture that the properties-correcting agent that described organic modification montmonrillonite uses is one or more in tetrabutyl phosphonium bromide phosphine, cage-type silsesquioxane, sodium laurylsulfonate, sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, cetyl trimethylammonium bromide, sodium stearate, sodium ricinoleate, APTES, vinylbenzene, imidazoles.
Preferably, described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 10-25 part glycol ether by 2-5 part two water zinc acetate by weight, 3-10 part distilled water is added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 130-150 DEG C, and the time of reaction is 5-15h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying.
Preferably, described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 20 parts of glycol ethers by 3 part of two water zinc acetate by weight, 5 parts of distilled water are added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 145 DEG C, and the time of reaction is 12h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying; In modified nano zinc oxide, glycol ether is utilized to carry out modification to nano zine oxide, at the finishing groups such as alcoholic extract hydroxyl group of nano zine oxide, can ionize in water and generate charged group, make to produce Coulomb repulsion between nano granular of zinc oxide, thus improve the dispersiveness of nano zine oxide, make it be uniformly dispersed in coating, improve the stability of coating.
The modified acrylic acid emulsion of heat-proof combustion-resistant described in the present invention coating can acrylic emulsion coating preparation technology conveniently be prepared from.
In the present invention, using ACRYLIC EMULSION as main filmogen, it can give the low temperature flexibility of film excellence and dynamic splitting resistance, can form the coating of densification simultaneously, enhance the water tolerance of film, but its cohesiveness and intensity lower, vinyl acetate-ethylene copolymerization emulsions is linear polymeric polymkeric substance, because not containing active function groups in molecular structure, water tolerance is not fine, film unit elongation is low, but its polarity is strong, good to the adhesive property of base material and color stuffing, select vinyl acetate-ethylene copolymerization emulsions as auxiliary film forming matter in the present invention, and have adjusted its content in system, it is made to coordinate with ACRYLIC EMULSION, reach mutual supplement with each other's advantages, maximize favourable factors and minimize unfavourable ones, give water tolerance and the pull resistance of film excellence, improve the cohesive strength of film and ground simultaneously, make coating difficult drop-off in the process used, brominated epoxy resin has excellent electric insulating quality and cementability, also there is excellent self-extinguishing and thermotolerance in addition, and low toxicity, join in system, give the flame retardant resistance of coating excellence, improve the cohesive strength of coating simultaneously, coordinate with vinyl acetate-ethylene copolymerization emulsions, improve the defect that ACRYLIC EMULSION cohesive strength is low, boron bakelite resin has excellent high thermal resistance, integrate catalysis simultaneously, become charcoal and foaming, after coordinating with zinc borate, nano-sized magnesium hydroxide, hexamethylenetetramine, form cooperative flame retardant system, further improve the flame retardant resistance of coating, effectively prevent mechanicalness loss of energy simultaneously, organic modification montmonrillonite is uniformly dispersed in system, it is elongated that its sheet structure can make gas enter the path of coating, improve the water proof of coating, barrier, give the water tolerance of coating excellence, thermotolerance and weathering resistance, in the process of coating burns, heat is not easily transferred to matrix surface, extend the combustion time of base material, add sepiolite, nano-silicon nitride, nanometer silicon carbide, aluminium triphosphate, nano zine oxide, after nano aluminium oxide, existence due to sepiolite makes color stuffing be dispersed in system, by controlling the content of color stuffing, have adjusted the foaming degree of boron bakelite resin and the relation of layer of charcoal intensity, while enhancing coating apyrous, enhance physical strength and the sticking power of film, improve the weathering resistance of film, extend the work-ing life of film, in addition, nano titanium oxide can form strong interface binding power with boron bakelite resin with its surface effects, volume effect and quantum size effect, further improves the intensity of coating.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 35 parts, brominated epoxy resin 5 parts, boron bakelite resin 15 parts, zinc borate 3 parts, nano-sized magnesium hydroxide 15 parts, hexamethylenetetramine 1 part, organic modification montmonrillonite 10 parts, sepiolite 5 parts, nano-silicon nitride 10 parts, nanometer silicon carbide 2 parts, aluminium triphosphate 10 parts, nano zine oxide 3 parts, nano aluminium oxide 10 parts, ethanol 10 parts, 2-ethyl-4-methylimidazole 5 parts, polyvinylpyrrolidone 1 part, lauryl mercaptan 3 parts, 1, 2-benzisothiazole-3-ketone 2 parts, Xylo-Mucine 5 parts, defoamer 1 part, 50 parts, water.
Embodiment 2
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 20 parts, brominated epoxy resin 15 parts, boron bakelite resin 5 parts, zinc borate 15 parts, nano-sized magnesium hydroxide 5 parts, hexamethylenetetramine 10 parts, tetrabutyl phosphonium bromide phosphine-modified polynite 3 parts, sepiolite 15 parts, nano-silicon nitride 3 parts, nanometer silicon carbide 10 parts, aluminium triphosphate 2 parts, nano zine oxide 10 parts, nano aluminium oxide 2 parts, ethanol 25 parts, 2-ethyl-4-methylimidazole 1.5 parts, polyvinylpyrrolidone 5 parts, lauryl mercaptan 1 part, 1, 2-benzisothiazole-3-ketone 6 parts, Xylo-Mucine 2 parts, defoamer 2 parts, 30 parts, water.
Embodiment 3
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 28 parts, brominated epoxy resin 13 parts, boron bakelite resin 8 parts, zinc borate 10 parts, nano-sized magnesium hydroxide 6 parts, hexamethylenetetramine 7 parts, organic modification montmonrillonite 5 parts, sepiolite 13 parts, nano-silicon nitride 6 parts, nanometer silicon carbide 8 parts, aluminium triphosphate 5 parts, nano zine oxide 8 parts, nano aluminium oxide 5 parts, ethanol 21 parts, 2-ethyl-4-methylimidazole 3.2 parts, polyvinylpyrrolidone 3.5 parts, lauryl mercaptan 1.6 parts, 1, 2-benzisothiazole-3-ketone 4.6 parts, Xylo-Mucine 3.5 parts, defoamer 1.7 parts, 42 parts, water,
Wherein, the median size of described nano-sized magnesium hydroxide is 30nm; The median size of described nano-silicon nitride is 20nm; The median size of described nanometer silicon carbide is 25nm; The median size of described nano zine oxide is 20nm; The median size of described nano aluminium oxide is 25nm; The properties-correcting agent that described organic modification montmonrillonite uses is Sodium dodecylbenzene sulfonate, the mixture of sodium ricinoleate, APTES, imidazoles, and the weight ratio of Sodium dodecylbenzene sulfonate, sodium ricinoleate, APTES, imidazoles is 1:4:3:5;
Described ACRYLIC EMULSION is modified acrylic acid emulsion; Described modified acrylic acid emulsion is prepared according to following technique: 50 parts of octamethylcyclotetrasiloxanes, 30 parts of t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.5 part of sodium hydroxide by weight, stir and be warming up to 90 DEG C, reaction 1.5h, adjust ph is obtain material A after 7; By weight by 3 parts of vinyltrimethoxy silanes, 10 parts of vinyl silane triisopropoxides, 5 parts of vinylformic acid-2,4,6-tribromophenyl, 25 parts of dodecafluoroheptyl methacrylates, 2 parts of vinylbenzene, 50 parts of methyl methacrylates, 20 parts of Hydroxyethyl acrylates mix and obtain material B; By weight 1 part of sodium lauryl sulphate, 0.5 part of polyoxyethylene octylphenol ether are added in 100 parts of water, stir at 30 DEG C, then 20 parts of material A and 10 serving material B are dripped, 10min is stirred at 90 DEG C, then 0.8 part of Sodium Persulfate and 0.1 part of sodium bisulfite is added, add 0.1 part of Sodium Persulfate again after stirring 50min, then drip 50 parts of material A and 30 serving material B, after stirring 120min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion;
Described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 25 parts of glycol ethers by 2 part of two water zinc acetate by weight, 3 parts of distilled water are added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 150 DEG C, and the time of reaction is 5h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying.
Embodiment 4
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 33 parts, brominated epoxy resin 8 parts, boron bakelite resin 12 parts, zinc borate 8 parts, nano-sized magnesium hydroxide 9 parts, hexamethylenetetramine 5 parts, organic modification montmonrillonite 8 parts, sepiolite 9 parts, nano-silicon nitride 8 parts, nanometer silicon carbide 6 parts, aluminium triphosphate 8 parts, nano zine oxide 6 parts, nano aluminium oxide 7 parts, ethanol 16 parts, 2-ethyl-4-methylimidazole 4 parts, polyvinylpyrrolidone 2.8 parts, lauryl mercaptan 2.3 parts, 1, 2-benzisothiazole-3-ketone 3.9 parts, Xylo-Mucine 4 parts, defoamer 1.3 parts, 46 parts, water,
Wherein, the median size of described nano-sized magnesium hydroxide is 15nm; The median size of described nano-silicon nitride is 25nm; The median size of described nanometer silicon carbide is 20nm; The median size of described nano zine oxide is 25nm; The median size of described nano aluminium oxide is 10nm; The properties-correcting agent that described organic modification montmonrillonite uses is cage-type silsesquioxane, the mixture of sodium stearate, APTES, and the weight ratio of cage-type silsesquioxane, sodium stearate, APTES is 3:2:2;
Described ACRYLIC EMULSION is modified acrylic acid emulsion; Described modified acrylic acid emulsion is prepared according to following technique: 20 parts of octamethylcyclotetrasiloxanes, 45 parts of t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.2 part of sodium hydroxide by weight, stir and be warming up to 100 DEG C, reaction 0.5h, adjust ph is obtain material A after 7; By weight by 10 parts of vinyltrimethoxy silanes, 5 parts of vinyl silane triisopropoxides, 15 parts of vinylformic acid-2,4,6-tribromophenyl, 10 parts of dodecafluoroheptyl methacrylates, 10 parts of vinylbenzene, 30 parts of methyl methacrylates, 50 parts of Hydroxyethyl acrylates mix and obtain material B; By weight 0.3 part of sodium lauryl sulphate, 1.5 parts of polyoxyethylene octylphenol ethers are added in 200 parts of water, stir at 38 DEG C, then 10 parts of material A and 20 serving material B are dripped, 25min is stirred at 80 DEG C, then 0.1 part of Sodium Persulfate and 0.5 part of sodium bisulfite is added, add 0.5 part of Sodium Persulfate again after stirring 20min, then drip 20 parts of material A and 50 serving material B, after stirring 50min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion;
Described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 10 parts of glycol ethers by 5 part of two water zinc acetate by weight, 10 parts of distilled water are added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 130 DEG C, and the time of reaction is 15h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying.
Embodiment 5
A kind of heat-proof combustion-resistant modified acrylic acid emulsion coating that the present invention proposes, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 32 parts, brominated epoxy resin 11 parts, boron bakelite resin 10 parts, zinc borate 9.2 parts, nano-sized magnesium hydroxide 7 parts, hexamethylenetetramine 6 parts, organic modification montmonrillonite 7 parts, sepiolite 12 parts, nano-silicon nitride 7 parts, nanometer silicon carbide 7.3 parts, aluminium triphosphate 6 parts, nano zine oxide 7 parts, nano aluminium oxide 6 parts, ethanol 20 parts, 2-ethyl-4-methylimidazole 3.6 parts, polyvinylpyrrolidone 3.2 parts, lauryl mercaptan 2 parts, 1, 2-benzisothiazole-3-ketone 4 parts, Xylo-Mucine 3.6 parts, defoamer 1.5 parts, 45 parts, water,
Wherein, the median size of described nano-sized magnesium hydroxide is 35nm; The median size of described nano-silicon nitride is 10nm; The median size of described nanometer silicon carbide is 35nm; The median size of described nano zine oxide is 10nm; The median size of described nano aluminium oxide is 30nm; The properties-correcting agent that described organic modification montmonrillonite uses is vinylbenzene;
Described ACRYLIC EMULSION is modified acrylic acid emulsion; Described modified acrylic acid emulsion is prepared according to following technique: 30 parts of octamethylcyclotetrasiloxanes, 40 parts of t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.3 part of sodium hydroxide by weight, stir and be warming up to 95 DEG C, reaction 1h, adjust ph is obtain material A after 7; By weight by 7 parts of vinyltrimethoxy silanes, 8 parts of vinyl silane triisopropoxides, 10 parts of vinylformic acid-2,4,6-tribromophenyl, 20 parts of dodecafluoroheptyl methacrylates, 5 parts of vinylbenzene, 35 parts of methyl methacrylates, 28 parts of Hydroxyethyl acrylates mix and obtain material B; By weight 0.6 part of sodium lauryl sulphate, 0.9 part of polyoxyethylene octylphenol ether are added in 150 parts of water, stir at 38 DEG C, then 13 parts of material A and 12 serving material B are dripped, 20min is stirred at 85 DEG C, then 0.5 part of Sodium Persulfate and 0.3 part of sodium bisulfite is added, add 0.3 part of Sodium Persulfate again after stirring 40min, then drip 35 parts of material A and 40 serving material B, after stirring 100min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion;
Described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 20 parts of glycol ethers by 3 part of two water zinc acetate by weight, 5 parts of distilled water are added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 145 DEG C, and the time of reaction is 12h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying.
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 (9)
1. a heat-proof combustion-resistant modified acrylic acid emulsion coating, it is characterized in that, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 20-35 part, brominated epoxy resin 5-15 part, boron bakelite resin 5-15 part, zinc borate 3-15 part, nano-sized magnesium hydroxide 5-15 part, hexamethylenetetramine 1-10 part, organic modification montmonrillonite 3-10 part, sepiolite 5-15 part, nano-silicon nitride 3-10 part, nanometer silicon carbide 2-10 part, aluminium triphosphate 2-10 part, nano zine oxide 3-10 part, nano aluminium oxide 2-10 part, ethanol 10-25 part, 2-ethyl-4-methylimidazole 1.5-5 part, polyvinylpyrrolidone 1-5 part, lauryl mercaptan 1-3 part, 1, 2-benzisothiazole-3-ketone 2-6 part, Xylo-Mucine 2-5 part, defoamer 1-2 part, water 30-50 part.
2. heat-proof combustion-resistant modified acrylic acid emulsion coating according to claim 1, it is characterized in that, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 28-33 part, brominated epoxy resin 8-13 part, boron bakelite resin 8-12 part, zinc borate 8-10 part, nano-sized magnesium hydroxide 6-9 part, hexamethylenetetramine 5-7 part, organic modification montmonrillonite 5-8 part, sepiolite 9-13 part, nano-silicon nitride 6-8 part, nanometer silicon carbide 6-8 part, aluminium triphosphate 5-8 part, nano zine oxide 6-8 part, nano aluminium oxide 5-7 part, ethanol 16-21 part, 2-ethyl-4-methylimidazole 3.2-4 part, polyvinylpyrrolidone 2.8-3.5 part, lauryl mercaptan 1.6-2.3 part, 1, 2-benzisothiazole-3-ketone 3.9-4.6 part, Xylo-Mucine 3.5-4 part, defoamer 1.3-1.7 part, water 42-46 part.
3. heat-proof combustion-resistant modified acrylic acid emulsion coating according to claim 1 or 2, it is characterized in that, its raw material comprises following component by weight: ACRYLIC EMULSION 100 parts, vinyl acetate-ethylene copolymerization emulsions 32 parts, brominated epoxy resin 11 parts, boron bakelite resin 10 parts, zinc borate 9.2 parts, nano-sized magnesium hydroxide 7 parts, hexamethylenetetramine 6 parts, organic modification montmonrillonite 7 parts, sepiolite 12 parts, nano-silicon nitride 7 parts, nanometer silicon carbide 7.3 parts, aluminium triphosphate 6 parts, nano zine oxide 7 parts, nano aluminium oxide 6 parts, ethanol 20 parts, 2-ethyl-4-methylimidazole 3.6 parts, polyvinylpyrrolidone 3.2 parts, lauryl mercaptan 2 parts, 1, 2-benzisothiazole-3-ketone 4 parts, Xylo-Mucine 3.6 parts, defoamer 1.5 parts, 45 parts, water.
4. heat-proof combustion-resistant modified acrylic acid emulsion coating according to any one of claim 1-3, is characterized in that, described ACRYLIC EMULSION is modified acrylic acid emulsion; Described modified acrylic acid emulsion is prepared according to following technique: 20-50 part octamethylcyclotetrasiloxane, 30-45 part t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.2-0.5 part sodium hydroxide by weight, stir and be warming up to 90-100 DEG C, reaction 0.5-1.5h, adjust ph is obtain material A after 7; By weight by 3-10 part vinyltrimethoxy silane, 5-10 part vinyl silane triisopropoxide, 5-15 part vinylformic acid-2,4,6-tribromophenyl, 10-25 part dodecafluoroheptyl methacrylate, 2-10 part vinylbenzene, 30-50 part methyl methacrylate, 20-50 part Hydroxyethyl acrylate mix and obtain material B; By weight 0.3-1 part sodium lauryl sulphate, 0.5-1.5 part polyoxyethylene octylphenol ether are added in 100-200 part water, stir at 30-38 DEG C, then 10-20 part material A and 10-20 serving material B is dripped, 10-25min is stirred at 80-90 DEG C, then 0.1-0.8 part Sodium Persulfate and 0.1-0.5 part sodium bisulfite is added, 0.1-0.5 part Sodium Persulfate is added again after stirring 20-50min, then drip 20-50 part material A and 30-50 serving material B, after stirring 50-120min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion.
5. heat-proof combustion-resistant modified acrylic acid emulsion coating according to any one of claim 1-4, is characterized in that, described ACRYLIC EMULSION is modified acrylic acid emulsion; Described modified acrylic acid emulsion is prepared according to following technique: 30 parts of octamethylcyclotetrasiloxanes, 40 parts of t etram-ethyltetravinylcyclotetrasiloxane are mixed with 0.3 part of sodium hydroxide by weight, stir and be warming up to 95 DEG C, reaction 1h, adjust ph is obtain material A after 7; By weight by 7 parts of vinyltrimethoxy silanes, 8 parts of vinyl silane triisopropoxides, 10 parts of vinylformic acid-2,4,6-tribromophenyl, 20 parts of dodecafluoroheptyl methacrylates, 5 parts of vinylbenzene, 35 parts of methyl methacrylates, 28 parts of Hydroxyethyl acrylates mix and obtain material B; By weight 0.6 part of sodium lauryl sulphate, 0.9 part of polyoxyethylene octylphenol ether are added in 150 parts of water, stir at 38 DEG C, then 13 parts of material A and 12 serving material B are dripped, 20min is stirred at 85 DEG C, then 0.5 part of Sodium Persulfate and 0.3 part of sodium bisulfite is added, add 0.3 part of Sodium Persulfate again after stirring 40min, then drip 35 parts of material A and 40 serving material B, after stirring 100min, adjust ph is that alkalescence obtains described modified acrylic acid emulsion.
6. heat-proof combustion-resistant modified acrylic acid emulsion coating according to any one of claim 1-5, is characterized in that, the median size of described nano-sized magnesium hydroxide is 15-35nm; The median size of described nano-silicon nitride is 10-25nm; The median size of described nanometer silicon carbide is 20-35nm; The median size of described nano zine oxide is 10-25nm; The median size of described nano aluminium oxide is 10-30nm.
7. heat-proof combustion-resistant modified acrylic acid emulsion coating according to any one of claim 1-6, it is characterized in that, the properties-correcting agent that described organic modification montmonrillonite uses is the mixture of one or more in tetrabutyl phosphonium bromide phosphine, cage-type silsesquioxane, sodium laurylsulfonate, sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, cetyl trimethylammonium bromide, sodium stearate, sodium ricinoleate, APTES, vinylbenzene, imidazoles.
8. heat-proof combustion-resistant modified acrylic acid emulsion coating according to any one of claim 1-7, is characterized in that, described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 10-25 part glycol ether by 2-5 part two water zinc acetate by weight, 3-10 part distilled water is added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 130-150 DEG C, and the time of reaction is 5-15h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying.
9. heat-proof combustion-resistant modified acrylic acid emulsion coating according to any one of claim 1-8, is characterized in that, described nano zine oxide is modified nano zinc oxide; Described modified nano zinc oxide prepares according to following technique: add in 20 parts of glycol ethers by 3 part of two water zinc acetate by weight, 5 parts of distilled water are added after stirring, react in band teflon-lined stainless steel autoclave after stirring, the temperature of wherein reacting is 145 DEG C, and the time of reaction is 12h; After reaction terminates, obtain described modified nano zinc oxide through cooling, filtration, washing, drying.
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| CN113354871A (en) * | 2021-07-05 | 2021-09-07 | 科迈特新材料有限公司 | Preparation method of high-dispersion modified nano zinc oxide |
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