CN103046036A - Metal derusting and antirusting agent and preparation method of metal derusting and antirusting agent - Google Patents
Metal derusting and antirusting agent and preparation method of metal derusting and antirusting agent Download PDFInfo
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Abstract
The invention provides a metal derusting and antirusting agent as well as a preparation method and an application of the metal derusting and antirusting agent. The metal derusting and antirusting agent comprises phosphoric acid, zinc oxide, aluminium hydroxide, sodium tripolyphosphate, organic acid, a surfactant, a thickener and deionized water. The metal derusting and antirusting agent can be used for finishing derusting, passivating and phosphating for a metal surface via one-step treatment, is free from any strong acid and strong base, non-toxic, smokeless and non-smell-volatile, and is free from environment pollution; and the treated metal surface can be antirust for more than half a year and has a strong binding force with a paint layer. The metal derusting and antirusting agent is a derusting and antirusting product which is safe and reliable, less in pollution, simple in process and low in cost.
Description
Technical field
The present invention relates to a kind of metal surface treatment technology, relate in particular to a kind of metal rust-removing anti-rust agent and preparation method thereof.
Background technology
Steel product is very easily corrosion in atmosphere, and the whole world is very huge because of the iron and steel quantity that corrosion is lost every year, in order to solve the corrosion of steel product, often needs steel surface is taked various anti-corrosion measures.At present the industrial metal surface treating liquid that generally uses mainly is to have the functions such as rust cleaning, antirust, decontamination, phosphatization, passivation, and the existing simple function of product also has multi-functional unification.But in actual applications, or because cost of material is expensive, cost is high; Or because of degreasing and rust removal not thorough, anti-corrosion performance, especially long-term anti-corrosion performance is poor; Or be unfavorable for the stable control of tank liquor because forming complexity; Or because of in the treating processes, produce a large amount of acid mists, and contain the toxic substances such as strong acid, highly basic, heavy metallic salt, fluorochemical in the product, the health that jeopardizes equipment and operator, therefore using has obvious limitation.
Chinese patent application number discloses a kind of For Rust-removing And Passivating On Steel technique among the 85104742A, rust removing solution consists of: hydrochloric acid (7～23%), hexamethylenetetramine (0.7～1%), 12 or Sodium palmityl sulfate (0.1～0.2%), TX-10 (0.05～0.2%), 6501 (0.05～0.2%), passivating solution consists of: unslaked lime (0.5～4%), Sodium Nitrite (0.6～1.5%), hexamethylenetetramine (0.05～0.15%) and water.Adopt this rust cleaning and the passivation technology need be with equipment such as rust cleaning pond, passivation pool, clean water basin, complex process, operation be loaded down with trivial details, have increased labour intensity and production cost, and have contained toxic substance in rust removing solution and the passivating solution, harm personnel health, contaminate environment.
The Chinese patent notification number is that CN86107238A discloses a kind of oil-removing rust-removing agent, forms to comprise aluminium powder, hexamethylenetetramine, sodium hydroxide, polyoxyethylene aliphatic alcohol ether, oxyethane, phosphoric acid and water.This oil-removing rust-removing agent is unstable because of the oxyethane character that contains in the raw material, be unfavorable for production operation, and oxyethane toxicity is larger, the harm operator ' s health, and environmental pollution is also larger.
Summary of the invention
The object of the invention is to solve the problem that above-mentioned prior art exists, a kind of nontoxic, the long metal rust-removing anti-rust agent of fast, antirust time of rust cleaning speed that can use at normal temperatures is provided.
Another object of the present invention is to solve the defective that above-mentioned prior art exists, a kind of preparation method of rust-removing and-preventing agent is provided, this preparation method is simple to operate, and is safe and reliable.
A kind of metal rust-removing anti-rust agent, by weight 100%, its raw material is:
Phosphoric acid: 10～40%;
Zinc oxide: 0.1～5%;
Aluminium hydroxide: 0.1～5%;
Tripoly phosphate sodium STPP: 3～15%;
Tensio-active agent: 1～15%;
Thickening material: 0.1～3%;
Organic acid: 0～10%;
Deionized water: surplus.
Further, aforesaid metal rust-removing anti-rust agent, described tensio-active agent is one or more among fatty alcohol-polyoxyethylene ether AEO, the alkylphenol polyoxyethylene APEO.
Further, aforesaid metal rust-removing anti-rust agent, described thickening material is one or more in inorganic thickening agent, the cellulose thickener.
Further, aforesaid metal rust-removing anti-rust agent, described organic acid is one or more in formic acid, acetic acid, butyric acid, citric acid, the phytic acid.
Further, aforesaid metal rust-removing anti-rust agent, described fatty alcohol-polyoxyethylene ether AEO comprises that the polymerization degree is that 6 fatty alcohol-polyoxyethylene ether AEO-6, the polymerization degree are that 9 fatty alcohol-polyoxyethylene ether AEO-9, the polymerization degree are one or more among 15 the fatty alcohol-polyoxyethylene ether AEO-15.
Further, aforesaid metal rust-removing anti-rust agent, described alkyl alcohol Soxylat A 25-7 APEO is one or more in polyoxyethylene octylphenol ether, the polyoxyethylene nonylphenol ether.
Further, aforesaid metal rust-removing anti-rust agent, described inorganic thickening agent is one or more in wilkinite, the pure aluminium silicate.
Further, aforesaid metal rust-removing anti-rust agent, described cellulose thickener is one or more in methylcellulose gum, carboxymethyl cellulose, Natvosol, the Vltra tears.
A kind of as mentioned above preparation method of metal rust-removing anti-rust agent for preparing may further comprise the steps:
Step 1: the proportioning raw materials by as mentioned above metal rust-removing anti-rust agent takes by weighing zinc oxide, aluminium hydroxide and phosphoric acid, and heating mixes to the solution clarification, makes A liquid;
Step 2: the proportioning raw materials by as mentioned above metal rust-removing anti-rust agent takes by weighing tensio-active agent, thickening material and water, and the heating mixing and stirring makes B liquid to fully dissolving;
Step 3: A liquid and B liquid are mixed, and add under agitation as mentioned above that tripoly phosphate sodium STPP and the organic acid of metal rust-removing anti-rust agent proportioning raw materials are stirred to evenly.
Further, the preparation method of metal-derusting as mentioned above, described tensio-active agent is one or more among fatty alcohol-polyoxyethylene ether AEO, the alkylphenol polyoxyethylene APEO; Described thickening material is one or more in inorganic thickening agent, the cellulose thickener; Described organic acid is one or more in formic acid, acetic acid, butyric acid, citric acid, the phytic acid.
Metal rust-removing anti-rust agent provided by the invention, can a step finish rust cleaning, passivation, the phosphatization of metallic surface, and do not contain any strong acid, highly basic, nontoxic, non smoke and smell volatilization, free from environmental pollution, and metallic surface after treatment can be more than antirust half a year, strong with the enamelled coating bonding force, be a kind of safe and reliable, pollute little derusting rust-proofing product; The production technique for preparing simultaneously this metal rust-removing anti-rust agent is simple, need not specific installation; And use application method of the present invention, its treatment time is short, thereby has improved working efficiency.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the embodiment among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
A kind of metal rust-removing anti-rust agent, by weight 100%, its raw material is:
Phosphoric acid: 10～40%;
Zinc oxide: 0.1～5%;
Aluminium hydroxide: 0.1～5%;
Tripoly phosphate sodium STPP: 3～15%;
Tensio-active agent: 1～15%;
Thickening material: 0.1～3%;
Organic acid: 0～10%;
Deionized water: surplus.
In the preferred case, described tensio-active agent is one or more among fatty alcohol-polyoxyethylene ether AEO, the alkylphenol polyoxyethylene APEO; Described thickening material is one or more in inorganic thickening agent, the cellulose thickener; Described organic acid is one or more in formic acid, acetic acid, butyric acid, citric acid, the phytic acid.
Further, under above-mentioned preferable case, described fatty alcohol-polyoxyethylene ether AEO comprises that the polymerization degree is that 6 fatty alcohol-polyoxyethylene ether AEO-6, the polymerization degree are that 9 fatty alcohol-polyoxyethylene ether AEO-9, the polymerization degree are one or more among 15 the fatty alcohol-polyoxyethylene ether AEO-15; Described alkylphenol polyoxyethylene APEO is one or more in polyoxyethylene octylphenol ether, the polyoxyethylene nonylphenol ether; Described inorganic thickening agent is one or more in wilkinite, the pure aluminium silicate; Described cellulose thickener is one or more in methylcellulose gum, carboxymethyl cellulose, Natvosol, the Vltra tears.
Embodiment 1:
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 18%;
Zinc oxide: 0.5%;
Aluminium hydroxide: 0.5%;
Tripoly phosphate sodium STPP: 6%;
The polymerization degree is 9 fatty alcohol-polyoxyethylene ether: 5%;
Carboxymethyl cellulose: 0.5%;
Acetic acid: 3%;
Deionized water: 66.5%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; The polymerization degree that takes by weighing the prescription consumption is 9 fatty alcohol-polyoxyethylene ether, carboxymethyl cellulose and water, and the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and under agitation add the tripoly phosphate sodium STPP of prescription consumption and acetic acid and be stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Embodiment 2
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 25%;
Zinc oxide: 0.8%;
Aluminium hydroxide: 0.8%;
Tripoly phosphate sodium STPP: 5%;
Polyoxyethylene octylphenol ether: 4%;
Carboxymethyl cellulose: 0.4%;
Acetic acid: 1%;
Deionized water: 63%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; Take by weighing polyoxyethylene octylphenol ether, carboxymethyl cellulose and the water of prescription consumption, the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and under agitation add the tripoly phosphate sodium STPP of prescription consumption and acetic acid and be stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Embodiment 3
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 20%;
Zinc oxide: 0.6%;
Aluminium hydroxide: 0.6%;
Tripoly phosphate sodium STPP: 8%;
The polymerization degree is 15 fatty alcohol-polyoxyethylene ether: 3%;
Carboxymethyl cellulose: 0.3%;
Citric acid: 2.5%;
Deionized water: 65%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; The polymerization degree that takes by weighing the prescription consumption is 15 fatty alcohol-polyoxyethylene ether, carboxymethyl cellulose and water, and the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and under agitation add the tripoly phosphate sodium STPP of prescription consumption and citric acid and be stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Embodiment 4
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 10%;
Zinc oxide: 0.1%;
Aluminium hydroxide: 2.5%;
Tripoly phosphate sodium STPP: 10%;
The polymerization degree is respectively 6,9 fatty alcohol-polyoxyethylene ether: 8%;
Wilkinite: 3%;
Formic acid: 10%;
Deionized water: 56.4%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; The polymerization degree that takes by weighing the prescription consumption is respectively 6,9 fatty alcohol-polyoxyethylene ether, wilkinite and water, and the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and under agitation add the tripoly phosphate sodium STPP of prescription consumption and formic acid and be stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Embodiment 5
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 40%;
Zinc oxide: 5%;
Aluminium hydroxide: 3%;
Tripoly phosphate sodium STPP: 10%;
The polymerization degree is 6 fatty alcohol-polyoxyethylene ether, polyoxyethylene octylphenol ether: 10%;
Wilkinite, pure aluminium silicate: 0.1%;
Deionized water: 31.9%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; The polymerization degree that takes by weighing the prescription consumption is 6 fatty alcohol-polyoxyethylene ether, polyoxyethylene octylphenol ether, wilkinite, pure aluminium silicate and water, and the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and the tripoly phosphate sodium STPP that under agitation adds the prescription consumption is stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Embodiment 6
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 20%;
Zinc oxide: 4%;
Aluminium hydroxide: 5%;
Tripoly phosphate sodium STPP: 3%;
The polymerization degree is respectively 6,9 fatty alcohol-polyoxyethylene ether, polyoxyethylene octylphenol ether: 15%;
Methylcellulose gum, carboxymethyl cellulose, Natvosol: 2%;
Acetic acid, butyric acid, citric acid: 5%;
Deionized water: 46%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; The polymerization degree that takes by weighing the prescription consumption is respectively 6,9 fatty alcohol-polyoxyethylene ether, polyoxyethylene octylphenol ether, methylcellulose gum, carboxymethyl cellulose, Natvosol and water, and the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and the mixture that under agitation adds the tripoly phosphate sodium STPP of prescription consumption and acetic acid, butyric acid, citric acid is stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Embodiment 7
Metal rust-removing anti-rust agent in the present embodiment, raw materials used weight percent is:
Phosphoric acid: 25%;
Zinc oxide: 2.5%;
Aluminium hydroxide: 0.1%;
Tripoly phosphate sodium STPP: 15%;
The polymerization degree is respectively 9,15 fatty alcohol-polyoxyethylene ether, polyoxyethylene octylphenol ether, polyoxyethylene nonylphenol ether: 1%;
Pure aluminium silicate, methylcellulose gum, carboxymethyl cellulose, Vltra tears: 2%;
Formic acid, acetic acid, citric acid, vegetable acid: 6%;
Deionized water: 48.4%.
The preparation method: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by the prescription consumption, heating mixes to the solution clarification, makes A liquid; The polymerization degree that takes by weighing the prescription consumption is respectively 9,15 fatty alcohol-polyoxyethylene ether, polyoxyethylene octylphenol ether, polyoxyethylene nonylphenol ether, pure aluminium silicate, methylcellulose gum, carboxymethyl cellulose, Vltra tears and water, the heating mixing and stirring makes B liquid to fully dissolving; A liquid and B liquid are mixed, and the mixture that under agitation adds the tripoly phosphate sodium STPP of prescription consumption and formic acid, acetic acid, citric acid, vegetable acid is stirred to the uniform aqueous solution and namely can be made into this kind rust-removing and-preventing agent finished product.
Tensio-active agent in the metal rust-removing anti-rust agent of the present invention can be that 6 fatty alcohol-polyoxyethylene ether AEO-6, the polymerization degree are that 9 fatty alcohol-polyoxyethylene ether AEO-9, the polymerization degree are one or more in 15 fatty alcohol-polyoxyethylene ether AEO-15, polyoxyethylene octylphenol ether, the polyoxyethylene nonylphenol ether for the polymerization degree.
Thickening material in the metal rust-removing anti-rust agent of the present invention can be wilkinite, pure aluminium silicate and methylcellulose gum, carboxymethyl cellulose, Natvosol, wherein one or more of Vltra tears.
Its pH value of metal rust-removing anti-rust agent of the present invention is 0.5～1.5, for the water white transparency shape, has no irritating odor.
The present invention also provides a kind of application of metal rust-removing anti-rust agent, and its concrete application mode is:
Embodiment: 8
Select the metal rust-removing anti-rust agent of example 1 to 7 any one prescription, treat surface corrosion cold-reduced sheet, immersion treatment is 5 minutes under the room temperature, takes out, and naturally dries 2 hours.
After the application mode of using the present embodiment to provide eliminates rust, cold-reduced sheet surface non-corroding thing, and place after indoor 3 months still non-corroding phenomenon of cold-reduced sheet top layer.
Embodiment: 9
Select the metal rust-removing anti-rust agent of example 1 to 7 any one prescription, treat surface corrosion cold-reduced sheet, immersion treatment is 10 minutes under the room temperature, takes out, and naturally dries 6 hours.
After the application mode of using the present embodiment to provide eliminates rust, cold-reduced sheet surface non-corroding thing, and place after indoor 3 months still non-corroding phenomenon of cold-reduced sheet top layer.
Embodiment: 10
Select the metal rust-removing anti-rust agent of example 1 to 7 any one prescription, treat surface corrosion cold-reduced sheet, immersion treatment is 2 minutes under the room temperature, takes out, and naturally dries 1 hour.
After the application mode of using the present embodiment to provide eliminates rust, cold-reduced sheet surface non-corroding thing, and place after indoor 3 months still non-corroding phenomenon of cold-reduced sheet top layer.
Metal rust-removing anti-rust agent provided by the invention can be used at normal temperatures, and nontoxic, rust cleaning speed is fast, sticking power good and its making method is simple to operate, safe and reliable.
Metal rust-removing anti-rust agent of the present invention and preparation method thereof, application have following technique effect:
(1), production technique of the present invention is simple, need not specific installation;
(2), its treatment time is short, increase work efficiency;
(3), it has rust cleaning and antirust double effects;
(4), the rust cleaning time is short, the antirust time is long, and is good with enamelled coating sticking power.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. metal rust-removing anti-rust agent is characterized in that: by weight 100%, and its raw material is:
Phosphoric acid: 10～40%;
Zinc oxide: 0.1～5%;
Aluminium hydroxide: 0.1～5%;
Tripoly phosphate sodium STPP: 3～15%;
Tensio-active agent: 1～15%;
Thickening material: 0.1～3%;
Organic acid: 0～10%;
Deionized water: surplus.
2. metal rust-removing anti-rust agent according to claim 1 is characterized in that: described tensio-active agent is one or more among fatty alcohol-polyoxyethylene ether AEO, the alkylphenol polyoxyethylene APEO.
3. metal rust-removing anti-rust agent according to claim 1 is characterized in that: described thickening material is one or more in inorganic thickening agent, the cellulose thickener.
4. metal rust-removing anti-rust agent according to claim 1 is characterized in that: described organic acid is one or more in formic acid, acetic acid, butyric acid, citric acid, the phytic acid.
5. metal rust-removing anti-rust agent according to claim 2 is characterized in that: described fatty alcohol-polyoxyethylene ether AEO comprises that the polymerization degree is that 6 fatty alcohol-polyoxyethylene ether AEO-6, the polymerization degree are that 9 fatty alcohol-polyoxyethylene ether AEO-9, the polymerization degree are one or more among 15 the fatty alcohol-polyoxyethylene ether AEO-15.
6. metal rust-removing anti-rust agent according to claim 2 is characterized in that: described alkylphenol polyoxyethylene APEO is one or more in polyoxyethylene octylphenol ether, the polyoxyethylene nonylphenol ether.
7. metal rust-removing anti-rust agent according to claim 3 is characterized in that: described inorganic thickening agent is one or more in wilkinite, the pure aluminium silicate.
8. metal rust-removing anti-rust agent according to claim 3 is characterized in that: described cellulose thickener is one or more in methylcellulose gum, carboxymethyl cellulose, Natvosol, the Vltra tears.
9. a preparation method who prepares the described metal rust-removing anti-rust agent of claim 1 is characterized in that, may further comprise the steps:
Step 1: take by weighing zinc oxide, aluminium hydroxide and phosphoric acid by proportioning raw materials claimed in claim 1, heating mixes to the solution clarification, makes A liquid;
Step 2: take by weighing tensio-active agent, thickening material and water by proportioning raw materials claimed in claim 1, the heating mixing and stirring makes B liquid to fully dissolving;
Step 3: A liquid and B liquid are mixed, and the tripoly phosphate sodium STPP and the organic acid that under agitation add the described proportioning raw materials of claim 1 are stirred to evenly.
10. the preparation method of described metal rust-removing anti-rust agent according to claim 9 is characterized in that, described tensio-active agent is one or more among fatty alcohol-polyoxyethylene ether AEO, the alkylphenol polyoxyethylene APEO; Described thickening material is one or more in inorganic thickening agent, the cellulose thickener; Described organic acid is one or more in formic acid, acetic acid, butyric acid, citric acid, the phytic acid.
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