Summary of the invention
In view of this, the object of the present invention is to provide a kind of waterborne anti-rust lacquer that can directly be applied to any metallic surface and preparation method thereof, to solve the problems that exist in the existing coating technology.
For realizing the foregoing invention purpose, the present invention provides a kind of waterborne anti-rust lacquer, and each compositions in weight percentage of said waterborne anti-rust lacquer comprises: deionized water 10-40%; Sterilant 0.1-0.3%; Film coalescence aid 1-3%; Multifunctional assistant 0.2-0.4%; Iron oxide red 2-5%; Antirust emulsion 50-70%; Urethane thickening flow agent 0.1-0.3%; Thickening material 2-3%; Sodium Nitrite 0.5-1.0%; Skimmer 0.15-0.4%; Dispersion agent 0.1-0.2%; Wetting agent 0.05-0.1%; White titanium pigment 0-8%.
As preferred version, each compositions in weight percentage of wherein said waterborne anti-rust lacquer comprises: deionized water 10.5%; Sterilant 0.2%; Film coalescence aid 2%; Multifunctional assistant 0.2%; Iron oxide red 5%; Antirust emulsion 70%; Urethane thickening flow agent 0.2%; Thickening material 2.2%; Sodium Nitrite 1%; Skimmer 0.4%; Dispersion agent 0.2%; Wetting agent 0.1%; White titanium pigment 8%.
The present invention provides a kind of preparation method of waterborne anti-rust lacquer, and said waterborne anti-rust lacquer follows these steps to preparation: 1) in deionized water, add sterilant, wetting agent, dispersion agent and multifunctional assistant successively, stirring at low speed 10-20 minute, it is uniformly dispersed; 2) add white titanium pigment, iron oxide red then, carried out high-speed stirring 60 minutes, make its fineness below 40 μ m (measuring) with Hegman grind gage; 3) add 202,3100 antirust emulsions, film coalescence aid, skimmer again, stir, stirring at low speed 20 minutes is uniformly dispersed it; 4) add urethane thickening flow agent, thickening material, Sodium Nitrite, middling speed stirred 30 minutes, made its viscosity more than 90s; 5) packing after 80 mesh sieves filter is to make above-mentioned waterborne anti-rust lacquer.
As preferred version, wherein said antirust emulsion is commercially available.
The beneficial effect that the present invention has is following:
1) waterborne anti-rust provided by the invention lacquer is that water dilutes, and compares with organic solvent dilutings such as oil of bananas, greatly reduces the danger of construction;
2) waterborne anti-rust lacquer provided by the invention can directly be applied to the metallic surface of any kind, and no matter whether it corrosion takes place or brushed lacquer in the past, and this rust-inhibiting paint can be compatible with any top coat;
3) waterborne anti-rust provided by the invention lacquer aqueous non-toxic, not leaded, chromium or other toxic substance, compliance with environmental protection requirements can be widely used in technical fields such as boats and ships, various vehicle, mechanical means;
4) waterborne anti-rust provided by the invention lacquer need not to sandblast and polish, and also needn't clean by water, can directly dissolve iron rust, can be directly paints construction in that iron rust is residual;
5) non-filmogen deionized water of the present invention can not only divide other materials in the powder formula well, and when producing and construct, can not bring pollution to environment;
6) preparation technology of the present invention is simple, and is workable, the preparing product stable performance.
Embodiment
Below in conjunction with specific embodiment the present invention is further described.
Embodiment 1:
Said waterborne anti-rust lacquer follows these steps to preparation: 1) will prepare the weight that waterborne anti-rust coats with lacquer, the following raw material of weighing by weight percentage: deionized water 38.5% according to institute; (composition is 5-oxygen-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone to sterilant 0.2%; Effect: anticorrosion storage period) at coating; Film coalescence aid 2% (adding hardness and deflection of strong film etc.); (composition: 2-amino-2-methyl-1-propanol contains 5% water to multifunctional assistant 0.5%; Effect: improve colo(u)rant dispersion efficient, help improving gloss of film and water tolerance, stablize the pH value, suppress the corrosion and sudden strain of a muscle rust problem of pail pack or base material); Iron oxide red 2% (composition: red oxide of iron; Effect: rust-stabilising pigment); White titanium pigment 3% (composition: titanium sesquioxide; Effect: improve opacifying power); Antirust emulsion 50% (wherein, contain 202 antirust emulsions 25%, 3100 antirust emulsions 25%, its staple is methyl acrylate, and is buied by the Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing); Urethane thickening flow agent 0.2% (composition: nonionic hydrophobically modified urethane; Effect: make the easy levelling of filming, eliminate the defectives such as shrinkage cavity, flake, orange peel of filming); Thickening material 2.2% (composition: acrylic ester polymer; Effect: improve stability in the storage period of coating, suppress the pigment deposition, improve redispersibility); Sodium Nitrite 1% (effect: passivation is arranged, the anti-rust function of dodging); Skimmer 0.1% (composition: the title complex of the tensio-active agent of MO and soap; Effect: in preparation coating, eliminate foam); Wetting agent 0.1% (composition: T 46155 (n=40) alkyl phenol ether (100%)); Dispersion agent 0.2%, (composition: ZX-I salt brine solution; Effect: be adsorbed on the surface of pigment,, make pigment in dispersion, more promptly reach ideal primary particle state with dispersion through wetting through reducing the tension force at this interface; And can prevent more effectively that this isolating particle from combining again again, makes it the dispersion state that keeps stable), in deionized water, add sterilant, wetting agent, dispersion agent and multifunctional assistant then successively, stirring at low speed 10-20 minute, it is uniformly dispersed; 2) add white titanium pigment, iron oxide red, carried out high-speed stirring 60 minutes, make its fineness below 40 μ m (measuring) with Hegman grind gage; 3) add 202,3100 antirust emulsions, film coalescence aid, skimmer again, stir, stirring at low speed 20 minutes is uniformly dispersed it; 4) add urethane thickening flow agent, thickening material, Sodium Nitrite, middling speed stirred 30 minutes, made its viscosity more than 90s; 5) packing after 80 mesh sieves filter.
Gained waterborne anti-rust lacquer is antirust general, and contrast ratio is low, and froth breaking is not good, and the pH value is too high, and the rust of sudden strain of a muscle is arranged, and hardness is not high, can only reach the B level.
Embodiment 2:
Said waterborne anti-rust lacquer follows these steps to preparation: 1) will prepare the weight that waterborne anti-rust coats with lacquer, the following raw material of weighing by weight percentage: deionized water 26.05% according to institute; (composition is 5-oxygen-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone to sterilant 0.2%; Effect: anticorrosion storage period) at coating; Film coalescence aid 2% (adding hardness and deflection of strong film etc.); (composition: 2-amino-2-methyl-1-propanol contains 5% water to multifunctional assistant 0.2%; Effect: improve colo(u)rant dispersion efficient, help improving gloss of film and water tolerance, stablize pH value, suppress the corrosion and sudden strain of a muscle rust problem of pail pack or base material); Iron oxide red 3.5% (composition: red oxide of iron; Effect: rust-stabilising pigment); White titanium pigment 5% (composition: titanium sesquioxide; Effect: improve opacifying power); Antirust emulsion 60% (wherein, contain 202 antirust emulsions 30%, 3100 antirust emulsions 30%, its staple is methyl acrylate, and is buied by the Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing); Urethane thickening flow agent 0.2% (composition: nonionic hydrophobically modified urethane; Effect: make the easy levelling of filming, eliminate the defectives such as shrinkage cavity, flake, orange peel of filming); Thickening material 2.2% (composition: acrylic ester polymer; Effect: improve stability in the storage period of coating, suppress the pigment deposition, improve redispersibility); Sodium Nitrite 0.1% (effect: passivation is arranged, the anti-rust function of dodging); Skimmer 0.25% (composition: the title complex of the tensio-active agent of MO and soap; Effect: in preparation coating, eliminate foam); Wetting agent 0.1% (composition: T 46155 (n=40) alkyl phenol ether (100%)); Dispersion agent 0.2% (composition: ZX-I salt brine solution; Effect: be adsorbed on the surface of pigment,, make pigment in dispersion, more promptly reach ideal primary particle state with dispersion through wetting through reducing the tension force at this interface; And can prevent more effectively that this isolating particle from combining again again, makes it the dispersion state that keeps stable), in deionized water, add sterilant, wetting agent, dispersion agent and multifunctional assistant then successively, stirring at low speed 10-20 minute, it is uniformly dispersed; 2) add white titanium pigment, iron oxide red, carried out high-speed stirring 60 minutes, make its fineness below 40 μ m (measuring) with Hegman grind gage; 3) add 202,3100 antirust emulsions, film coalescence aid, skimmer again, stir, stirring at low speed 20 minutes is uniformly dispersed it; 4) add urethane thickening flow agent, thickening material, Sodium Nitrite, middling speed stirred 30 minutes, made its viscosity more than 90s; 5) packing after 80 mesh sieves filter.
Gained waterborne anti-rust lacquer is antirust good slightly, and contrast ratio is good slightly, and froth breaking is general, and the pH value is best, does not have the rust of sudden strain of a muscle, and hardness can reach the HB level.
Embodiment 3:
Said waterborne anti-rust lacquer follows these steps to preparation: 1) will prepare the weight that waterborne anti-rust coats with lacquer, the following raw material of weighing by weight percentage: deionized water 10.5% according to institute; (composition is 5-oxygen-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone to sterilant 0.2%; Effect: anticorrosion storage period) at coating; Film coalescence aid 2% (adding hardness and deflection of strong film etc.); (composition: 2-amino-2-methyl-1-propanol contains 5% water to multifunctional assistant 0.2%; Effect: improve colo(u)rant dispersion efficient, help improving gloss of film and water tolerance, stablize pH value, suppress the corrosion and sudden strain of a muscle rust problem of pail pack or base material); Iron oxide red 5% (composition: red oxide of iron; Effect: rust-stabilising pigment); White titanium pigment 8% (composition: titanium sesquioxide; Effect: improve opacifying power); Antirust emulsion 70% (wherein, contain 202 antirust emulsions, 35%, 3100 antirust emulsion 35%, its staple is methyl acrylate, and is buied by the Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing); Urethane thickening flow agent 0.2% (composition: nonionic hydrophobically modified urethane; Effect: make the easy levelling of filming, eliminate the defectives such as shrinkage cavity, flake, orange peel of filming); Thickening material 2.2% (composition: acrylic ester polymer; Effect: improve stability in the storage period of coating, suppress the pigment deposition, improve redispersibility); Sodium Nitrite 0.1% (effect: passivation is arranged, the anti-rust function of dodging); Skimmer 0.4% (composition: the title complex of the tensio-active agent of MO and soap; Effect: in preparation coating, eliminate foam); Wetting agent 0.1% (composition: T 46155 (n=40) alkyl phenol ether (100%)); Dispersion agent 0.2% (composition: ZX-I salt brine solution; Effect: be adsorbed on the surface of pigment,, make pigment in dispersion, more promptly reach ideal primary particle state with dispersion through wetting through reducing the tension force at this interface; And can prevent more effectively that this isolating particle from combining again again, makes it the dispersion state that keeps stable); Wetting agent 0.1% adds sterilant, wetting agent, dispersion agent and multifunctional assistant then successively in deionized water, stirring at low speed 10-20 minute, it is uniformly dispersed; 2) add white titanium pigment, iron oxide red, carried out high-speed stirring 60 minutes, make its fineness below 40 μ m (measuring) with Hegman grind gage; 3) add 202,3100 antirust emulsions, film coalescence aid, skimmer again, stir, stirring at low speed 20 minutes is uniformly dispersed it; 4) add urethane thickening flow agent, thickening material, Sodium Nitrite, middling speed stirred 30 minutes, made its viscosity more than 90s; 5) packing after 80 mesh sieves filter.
Gained waterborne anti-rust lacquer antirust function is good, and snappiness is superior to GB/T6748-2008, GB/T1731-1993 standard, reaches 1mm; Resistance to salt water is superior to GB/T9274-1980, do not have bubble, come off, get rusty, variable color and loss of gloss; Be superior to GB/T6748-2008, GB/T1728-1979 time of drying; Surface drying 15 minutes was done solid work 8 hours, and fineness is lower than that 30 μ m, viscosity 99s, pencil hardness surpass 2H, surging force reaches the 50cm flawless; Meet the GB/T1731-1993 standard; Fume resistance surpasses 168 hours, is superior to GB/T6748-2008, GB/T1771-2007, and sticking power reaches 0 grade.
More than being merely the cited preferred embodiment of the present invention, is not in order to restriction protection scope of the present invention, and the those of ordinary skill utilization equivalence that the present invention did in the affiliated technical field is modified or changed, all with belonging to scope of patent protection of the present invention.