Summary of the invention
The invention provides a kind of super-thin steel structure fire-proof paint and preparation method thereof, can solve the solvent-borne type frie retardant coating surrounding environment and production and construction personnel are damaged, discharge when burning a large amount of toxic gases and the dissatisfactory problem of water super-thin steel structure fire-proof paint fire-proof and thermal-insulation effect.
The object of the invention provides a kind of novel acrylic acid bulk hybridization emulsion super-thin steel structure fire-proof paint and preparation method thereof.This coating had both had solvent-borne type ultra-thin fire-resistant coating high gloss, water-tolerant, characteristics such as strong adhesion, it with water again medium, various advantages with water-borne coatings, meet the low pollution of coating industry development, the direction of environmentally friendly coating, simultaneously because the special microtexture of hybridisation emulsion, the acrylic acid bulk hybridization emulsion super-thin steel structure fire-proof paint not only meets or exceeds the solvent-borne type super-thin steel structure fire-proof paint on fire resistance, and significantly reduced the amount that discharges poison gas in the super-thin steel structure fire-proof paint mechanism, the generation of the dead accident of poisoning when having prevented the fire generation.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of super-thin steel structure fire-proof paint is characterized in that being made by following set of dispense ratio:
Ingredients weight parts
Acrylic acid bulk hybridization emulsion 10-35
Carbonifying catalyst 10-25
Char-forming agent 10-25
Whipping agent 5-20
Fire retardant 5-20
Color stuffing 5-25
Strengthening agent 3-10
Solubility promoter 5-10
Dispersion agent 1-5
Defoamer 0.1-1
Flow agent 0.2-2
Thickening material 0.2-2
Film coalescence aid 1-5
Surplus is a water.
In technical scheme of the present invention, also have following technical characterictic: described acrylic acid bulk hybridization emulsion comprises the component of following weight part: acrylic monomer 20-40, oiliness acrylic resin 5-20, modified resin 1-5, tensio-active agent 5-15, oil-soluble initiator 0.1-0.2, water soluble starter 0.1-0.2, neutralizing agent 0.1-0.5, deionized water 30-60, chain-transfer agent 0.5-5, solubility promoter 5-15.
In technical scheme of the present invention, also have following technical characterictic: described acrylic monomer comprise following one or more: vinylformic acid, methacrylic acid, methyl methacrylate, methyl acrylate, ethyl propenoate, Hydroxyethyl acrylate, Propylene glycol monoacrylate, butyl acrylate, butyl methacrylate, ethyl acrylate;
Described oiliness acrylic resin is as hybrid resin, its molecular weight is between 40000~100000, the oiliness acrylic resin of second-order transition temperature between 30 ℃~60 ℃ comprises following one or more: the copolymer resins of copolymer resins, methacrylic ester and the vinyl cyanide of copolymer resins, acrylate and cinnamic copolymer resins, methacrylic ester and cinnamic copolymer resins, acrylate and the vinyl cyanide of the homopolymerization resin of acrylate, homopolymerization resin, acrylate and the methacrylic ester of methacrylic ester;
Described modified resin be selected from following one or more: urethane resin, Synolac, Resins, epoxy.
In technical scheme of the present invention, also have following technical characterictic: described tensio-active agent comprises response type surfactant active and non-response type surfactant active;
Described response type surfactant active be selected from following one or more: sodium p styrene sulfonate, acrylamide stearic acid sodium salt, alkyl vinylformic acid-2-ethanesulfonic acid sodium salt, maleic acid higher alcohols monoester sodium salt, the polycondensate of Succinic Acid and glycidyl methacrylate or polyoxyethylene phenolic ether in ninth of the ten Heavenly Stems acrylate;
Described non-response type surfactant active be selected from following one or more: polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether, polyoxyethylene lauric acid ester, polyoxyethylene stearic acid ester, Sodium dodecylbenzene sulfonate, Witco 1298 Soft Acid ammonium, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, sodium lauryl sulphate, sodium laurylsulfonate or their mixture, polyoxyethylenated alcohol sodium sulfate, nonylphenol polyoxyethylene ether sulfate, polyoxyethylene nonylphenol ether ammonium sulfate.
In technical scheme of the present invention, also have following technical characterictic: described water soluble starter be selected from following one or both: ammonium persulphate, Potassium Persulphate; Described oil-soluble initiator be selected from following one or both: benzoyl peroxide, Diisopropyl azodicarboxylate; Described chain-transfer agent is used for the molecular weight of controlling polymers, be selected from following one or more: uncle's ten carbon mercaptan, uncle DDM dodecyl mercaptan, tert-dodecyl mercaptan, uncle's 16 carbon mercaptan, the hot carbon mercaptan of uncle.
In technical scheme of the present invention, also have following technical characterictic: described solubility promoter is used for improving the stability of system, described solubility promoter be selected from following one or more: propylene glycol monomethyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, dipropylene glycol dme, 1-Methoxy-2-propyl acetate;
In technical scheme of the present invention, also have following technical characterictic: the preparation method of described acrylic acid bulk hybridization emulsion is as follows:
(1) at first prepare monomer solution: with the oiliness acrylic resin, modified resin and oil-soluble initiator are dissolved in acrylic monomer, and add the solubility promoter of metering, obtain monomer solution;
Initiator component: water soluble starter is dissolved in the deionized water;
(2) polyreaction: tensio-active agent that will part metering, initiator, neutralizing agent, chain-transfer agent, deionized water, and part propylene acids monomer add reactor as seed solution, stir, logical nitrogen 20 minutes, be warming up to 80~85 ℃, kept 15~20 minutes, drip monomer solution and initiator component that (1) step obtains continuously, dripped off in 3~6 hours, continue reaction 1~3 hour then, be cooled to 50 ℃, add neutralizing agent and transfer pH value 8-9.
In technical scheme of the present invention, also have following technical characterictic: described carbonifying catalyst is a kind of in the two trimeric cyanamides of ammonium polyphosphate, melamine phosphate, primary ammonium phosphate, urea phosphate, polyphosphoric acid amine potassium, Potassium tripolyphosphate, phosphoric acid, melamine pyrophosphate, the organophosphate;
Described char-forming agent is one or both in tetramethylolmethane, Dipentaerythritol, the tripentaerythritol;
Described whipping agent is a kind of in the phosphoric acid salt, borate of Dyhard RU 100, trimeric cyanamide, urea, trimeric cyanamide;
Described fire retardant is two kinds to three kinds in Tritolyl Phosphate, triphenylphosphate, tricresyl phosphate isopropyl benzene ester, tributyl phosphate, trioctyl phosphate, tolyl diphenyl phosphoester, aluminium hydroxide, magnesium hydroxide, the antimonous oxide;
In technical scheme of the present invention, also have following technical characterictic: described color stuffing is a kind of to three kinds in titanium dioxide, aluminum oxide, light calcium carbonate, wollastonite, slag wool, kaolin, silica powder, process white, the cenosphere;
Described strengthening agent is a kind of in rock wool, glass wool, the fire-resistant cotton;
Described dispersion agent is a polycarboxylate type dispersion agent;
Described defoamer is silicone based defoamer, and described silicone based defoamer is a kind of among TEGOFoamex810, the BYK-045;
Described flow agent is polyether-modified polysiloxane-based flow agent, and described polyether-modified polysiloxane-based flow agent is a kind of among TEGO Flow425, the BYK-333;
Described thickening material is ether of cellulose and derivatives class thereof, and described ether of cellulose and derivatives class thereof are a kind of in Natvosol, the methyl hydroxyethylcellulose;
Described film coalescence aid is an alcohol ester-12, the chemical ingredients of alcohol ester-12: 2,2, and 4-trimethylammonium-1,3-pentanediol mono isobutyrate.
A kind of preparation method of super-thin steel structure fire-proof paint is characterized in that comprising the steps:
(1) batching
Ingredients weight parts preparation batching according to above-mentioned super-thin steel structure fire-proof paint;
(2) batch mixing preparation just
Water and carbonifying catalyst, char-forming agent, whipping agent, fire retardant, strengthening agent, color stuffing are mixed in pill tank, add dispersion agent again and make batch mixing just with the 25%-50% that accounts in the described antifoam content;
(3) slurry preparation
First batch mixing is put into sand mill be ground to the 70-80 order, the sand mill rotating speed is 2000-2500r/min, filters to obtain slurry;
(4) coating preparation
When being added in the pill tank stirring at low speed, slurry adds solubility promoter successively, acrylic acid bulk hybridization emulsion, film coalescence aid, flow agent, all the other defoamers, stirring velocity is 200-400r/min, it is even to continue to be stirred to above mixing of materials, add thickening material and regulate viscosity, discharging promptly gets described frie retardant coating.
In technical scheme of the present invention, also have following technical characterictic: the coat-thickness of described coating is 1-3mm.
Super-thin steel structure fire-proof paint belongs to expanding fire-proof paint, and film forming matter has great effect to the performance of expanding fire-proof paint, and whether expanding for coating system sometimes plays a decisive role.Match with other component, both guaranteed that coating has the sticking power and the normal physicochemical property of excellence in normal working conditions, can help to form the charring layer of the expanded foamed effect with flame retardancy and excellence again under flame calcination or high temperature action.
As filmogen, described acrylic acid bulk hybridization emulsion is a kind of hybridisation emulsion that the solvent-type acrylic resin prepares by hybridisation emulsion polymeric method with acrylic monomer in aqueous medium to the acrylic acid bulk hybridization emulsion super-thin steel structure fire-proof paint with acrylic acid bulk hybridization emulsion.This emulsion has the specific molecule amount and distributes and single second-order transition temperature.Acrylic acid bulk hybridization emulsion had both had the characteristics of solvent type resin, as high gloss, and water-tolerant, characteristics such as strong adhesion are medium with water again, have the various advantages of aqueous acrylic emulsion.Because the special one-tenth of this emulsion is grouped into and microtexture, the microtexture that this hybridisation emulsion is special is shown in Fig. 1-2 simultaneously.
Compared with prior art, advantage of the present invention and positively effect are:
1, the present invention adopts acrylic acid bulk hybridization emulsion as the ultra-thin fire-resistant coating film forming matter, it cooperates the super-thin steel structure fire-proof paint of carbonifying catalyst, char-forming agent and whipping agent preparation among the present invention not only to meet or exceed solvent-borne type super-thin steel structure fire-proof paint (accompanying drawing 3 on fire resistance, 4), the height in the acrylic acid bulk hybridization emulsion super-thin steel structure fire-proof paint laboratory simulation burning expansion foaming picture reaches 3cm among Fig. 3; Acrylic acid bulk hybridization emulsion super-thin steel structure fire-proof paint model (left side) is compared with solvent-borne type super-thin steel structure fire-proof paint model (right side) among Fig. 4, and is obviously high; And significantly reduced in the super-thin steel structure fire-proof paint mechanism amount that discharges poison gas, the test result of taper calorimeter shows the specific extinction area (SEA) of acrylic acid hybridisation emulsion super-thin steel structure fire-proof paint and gives birth to cigarette speed (SPR) all much smaller than usual vehicle type super-thin steel structure fire-proof paint, as shown in Figure 5 and Figure 6.
2, frie retardant coating of the present invention does not add any fumicants that presses down, only because acrylic acid bulk hybridization emulsion filmogen and the expanded foamed component of frie retardant coating be used the flue gas that has reduced in the frie retardant coating mechanism.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Embodiment 1
1, preparation acrylic acid bulk hybridization emulsion
(1) monomer component: with the copolymer resins (molecular weight 40000) of 16g oiliness methyl methacrylate, 3g bisphenol A type epoxy resin (molecular weight 350~400), be dissolved in the mix monomer of 4g methacrylic acid, 25g butyl acrylate and 30g methyl methacrylate, and add the solubility promoter propylene glycol butyl ether 20g of increase system stability.
Initiator component: the 0.1g Potassium Persulphate is dissolved in the 20g deionized water.
(2) thermometer is being housed, agitator, in the four-hole bottle of reflux exchanger, add the 0.1g sodium bicarbonate, 0.5g Sodium dodecylbenzene sulfonate, 3g polyoxyethylene phenolic ether in ninth of the ten Heavenly Stems acrylate, the 10g polyoxyethylene nonylphenol ether is dissolved in the 120g deionized water, stir, logical nitrogen 20 minutes, add uncle's 0.5g 16 carbon mercaptan, the 1g methacrylic acid, the 1g Hydroxyethyl acrylate, the 8g butyl acrylate, the 10g methyl methacrylate, be warming up to 80 ℃ and add the 0.3g Potassium Persulphate, temperature keeps 81 ± 2 ℃ of reactions after 15 minutes, drips monomer component and initiator component in (1) simultaneously, drips in 3 hours, be warming up to 85 ℃ and continue reaction 1~2 hour, be cooled to 50 ℃ and transfer pH value with ammoniacal liquor.Can make solid content is 39.1%, and pH value is 8 acrylic acid bulk hybridization emulsion.
2, preparation frie retardant coating
(1) batching
Aforesaid propylene acid bulk hybridization emulsion 30%, ammonium polyphosphate 15%, tetramethylolmethane 10%, trimeric cyanamide 5%, aluminium hydroxide 5%, tributyl phosphate 5%, titanium dioxide 10%, rock wool 5%, propylene glycol monomethyl ether 5%, dispersion agent Henkel 50402%, defoamer TEGO Foamex8100.3%, flow agent TEGO Flow425 0.5%, Natvosol 0.2%, alcohol ester-122% adds water to 100%.
(2) batch mixing preparation just
With water and ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide, aluminium hydroxide, titanium dioxide mixes in pill tank, and the total content that adds the defoamer of dispersion agent and 50% is again made batch mixing just;
(3) slurry preparation
First batch mixing is put into sand mill, and sand mill rotating speed 2000r/min is ground to 80 orders, filters to obtain slurry;
(4) coating preparation
The rotating speed that slurry is added in the pill tank with 400r/min stirs, slowly add simultaneously propylene glycol monomethyl ether successively, acrylic acid bulk hybridization emulsion, film coalescence aid, flow agent, all the other defoamers, it is even to continue to be stirred to above mixing of materials, add thickening material and regulate viscosity, discharging promptly gets super-thin steel structure fire-proof paint.
Embodiment 2
1, preparation acrylic acid bulk hybridization emulsion
(1) monomer component: monomer component: 10g oiliness methyl methacrylate copolymer resin, 10g oiliness butyl methacrylate and acrylonitrile compolymer resin, 3g Synolac, 0.2g benzoyl peroxide, 0.3 uncle's DDM dodecyl mercaptan are dissolved in the mix monomer of 4g vinylformic acid, 25g butyl acrylate and 30g vinyl cyanide, and add the solubility promoter propylene glycol monomethyl ether 18g of increase system stability.
Initiator component: the 0.1g ammonium persulphate is dissolved in the 20g deionized water.
(2) thermometer is being housed, agitator, in the four-hole bottle of reflux exchanger, add the 0.1g sodium bicarbonate, 0.5g sodium lauryl sulphate, the polycondensate of 3g Succinic Acid and glycidyl methacrylate, 5g alkylphenol polyoxyethylene, the 5g polyoxyethylene nonylphenol ether, be dissolved in the 120g deionized water, stir, logical nitrogen 20 minutes, add 0.2 uncle's DDM dodecyl mercaptan, 1g vinylformic acid, the 1g Propylene glycol monoacrylate, the 8g butyl acrylate, the 10g vinyl cyanide, be warming up to 80 ℃ and add the 0.3g ammonium persulphate, temperature keeps 81 ± 2 ℃, reacts after 15 minutes, drips monomer component and initiator component in (1) simultaneously, dripped in 3 hours, and be warming up to 85 ℃ and continue reaction 1~2 hour.Be cooled to 50 ℃, transfer pH value with Triethylene Diamine, can make solid content is 40.8%, the hybridisation emulsion of pH value 8.
2, preparation frie retardant coating
(1) batching
Aforesaid propylene acid bulk hybridization emulsion 25%, ammonium polyphosphate 20%, tetramethylolmethane 5%, Dipentaerythritol 5%, trimeric cyanamide 8%, antimonous oxide 5%, aluminium hydroxide 5%, titanium dioxide 10%, glass wool 4%, high territory 5%, propylene glycol monomethyl ether 5%, dispersion agent Henkel 50402%, defoamer TEGO Foamex8100.3%, flow agent TEGO Flow425 0.5%, Natvosol 0.2%, alcohol ester-122% adds water to 100%.
(2) batch mixing preparation just
With water and ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide, aluminium hydroxide, titanium dioxide mixes in pill tank, and the total content that adds the defoamer of dispersion agent and 50% is again made batch mixing just.
(3) slurry preparation
First batch mixing is put into sand mill, and sand mill rotating speed 2000r/min is ground to 80 orders, filters to obtain slurry.
(4) coating preparation
The rotating speed that slurry is added in the pill tank with 400r/min stirs, and slowly adds propylene glycol monomethyl ether, acrylic acid bulk hybridization emulsion, film coalescence aid, flow agent, all the other defoamers simultaneously successively.It is even to continue to be stirred to above mixing of materials, adds thickening material and regulates viscosity, and discharging promptly gets super-thin steel structure fire-proof paint.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.