CN105440868A - Antirust acrylic acid coating adhering to surfaces of pumps and valves excellently - Google Patents

Abstract

The invention discloses an antirust acrylic acid coating adhering to surfaces of pumps and valves excellently. The coating is prepared from raw materials in parts by weight as follows: 65-70 parts of methyl methacrylate, 60-65 parts of styrene, 0.5-0.6 parts of ammonium persulfate, 4-5 parts of a phosphate monomer, 20-24 parts of deionized water, 2-3 parts of SDS (sodium dodecyl sulfate), 35-40 parts of glass flakes, 1-1.2 parts of a silane coupling agent KH560, 30-35 parts of ethanol with the concentration of 75wt%, 40-43 parts of a sodium hydroxide solution with the concentration of 10wt%, 2-3 parts of isopropyl alcohol, 3-4 parts of catechol, 2-3 parts of polymethyl methacrylate, 9-11 parts of barium sulfate, 14-16 parts of talc powder, 6-7 parts of iron oxide red, 2-3 parts of an adhesion promoter, 1.2-1.5 parts of a dispersant 5040 as well as proper amounts of absolute ethyl alcohol and water. The coating can be directed sprayed on surfaces of pump and valve materials, films are flexible and stable, protection of base materials is lasting and effective, and the corrosion resistance is good.

Description

A kind of vinylformic acid rust proof paint to pump valve surface attachment excellence

Technical field

The present invention relates to technical field of coatings, particularly relate to a kind of vinylformic acid rust proof paint to pump valve surface attachment excellence.

Background technology

The environment of pump valve work is various, badly, very high to the requirement of material, the material of current pump valve has varied, and technology has very much progress, but still have a lot of problem to exist, during in particular for conveying liquid, require very high to the rustless property of pump valve, common paint often can not meet the needs of environment, this carries out modification with regard to needing the coating of many pump valves, thus prepares the pump valve coating be more applicable to.

In order to ensure the anticorrosive quality of coating, traditional anticorrosive coating needed to carry out surface treatment thoroughly by certain means to steel before construction, expense required for conventional surface treatment process probably accounts for the 30%-40% of application total expenses, and the cost of coating itself only accounts for about 19%, and conventional surface treatment process easily produces a large amount of dust pollutions and sound pollution, surface treatment even can not carried out by traditional sandblasting means in more special occasion such as Complicated Steel iron construction dead angle, therefore find and a kind ofly compare environmental protection and the higher process means tool of cost performance is of great significance.Because environment protection is more and more subject to people's attention; and the volatile organic matter (VOC) that traditional solvent-borne coating discharges in manufacture, construction, dry solidification process is the important sources of environmental pollution, each state has all worked out corresponding environmental regulation to limit the discharge of VOC in coating for this reason.Therefore, the powder coating of current environment-friendly type, high solid coating, photocuring, water-borne coatings are research emphasis and the new lover of coating industry, and wherein water-borne coatings becomes with its stronger perviousness and is most suitable for containing the environment-friendly type coating that uses on rust metal base.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of vinylformic acid rust proof paint to pump valve surface attachment excellence.

The present invention is achieved by the following technical solutions:

A kind of vinylformic acid rust proof paint to pump valve surface attachment excellence, be made up of the raw material of following weight part: methyl methacrylate 65-70, vinylbenzene 60-65, ammonium persulphate 0.5-0.6, phosphate ester monomer 4-5, deionized water 20-24, SDS2-3, glass flake 35-40, silane coupling agent KH5601-1.2, concentration is the ethanol 30-35 of 75wt%, concentration is the sodium hydroxide solution 40-43 of 10wt%, Virahol 2-3, pyrocatechol 3-4, polymethylmethacrylate 2-3, barium sulfate 9-11, talcum powder 14-16, red iron oxide 6-7, adhesion promoter 2-3, dispersion agent 50401.2-1.5, dehydrated alcohol is appropriate, water is appropriate.

Described a kind of vinylformic acid rust proof paint to pump valve surface attachment excellence, is prepared from by following concrete steps:

(1) deionized water is mixed with SDS, put into reactor, warming while stirring is to 70-80 DEG C, then the methyl methacrylate of half amount, vinylbenzene and ammonium persulphate is added, constant temperature stirs the methyl methacrylate, vinylbenzene and the phosphate ester monomer that continue to add residual content after 30-40 minute, insulation 2-3 hour, obtains the ACRYLIC EMULSION of phosphate ester-containing;

(2) pulverized by glass flake, cross 100 mesh sieves, being then placed on concentration is soak 30-40 minute in the sodium hydroxide solution of 10wt%, filters, washes with water to neutrality stand-by; The ethanol being 75wt% by silane coupling agent KH560 and concentration is mixed to form solution, glass flake after above-mentioned alkaline purification is placed in one, uniform stirring 30-40 minute, in an oven with the dry 2-2.5 hour of the temperature of 80-90 DEG C after filtration, obtains surface modified glass scale;

(3) join in the dehydrated alcohol of total amount equivalent by barium sulfate, talcum powder, red iron oxide, polymethylmethacrylate, grinding distribution 30-40 minute, is heated to 75-85 DEG C, evaporate dehydrated alcohol, then put into baking oven dry, grinding distribution, cross 200 mesh sieves; Dispersion agent 5040 is distributed in the water of 30-32 times amount, adds above-mentioned 200 order powder, stir 40-50 minute with the speed of 600 revs/min, then Virahol, pyrocatechol is added, speed-raising is stirred to the speed of 2000 revs/min, until slurry fineness is less than 45 μm, obtains mixed slurry;

(4) mixed slurry that ACRYLIC EMULSION and the step (3) of the phosphate ester-containing finally step (1) obtained obtain mixes, and adds all the other remaining components, stirs and get final product with the speed of 600 revs/min.

Advantage of the present invention is: first the present invention adds appropriate phosphate ester monomer in the layoutprocedure of ACRYLIC EMULSION, not only emulsion intercalation method can be improved, and fine and close phosphatize phosphate coat can be formed with ground, while improving sticking power, improve Corrosion Protection; The present invention adds appropriate Virahol, pyrocatechol as turning rust agent, and good penetrability, can react with the floating rust on pump valve surface; The present invention also with the addition of the glass flake of surface modification in the layoutprocedure of coating, in the coating that can disperse uniformly, substantially prolongs approach and the time of medium osmosis simultaneously, corresponding anti-permeability performance and the corrosion-resistant life that improve coating.The present invention is coordinated with ACRYLIC EMULSION by the function raw material adding multiple-anticorrosion erosion, and the coating made possesses good preservative effect, and cost is low simultaneously, and VOC free discharges, safety and environmental protection.

Present component proportioning is scientific and reasonable; raw material all adopts environmental protection formulae; the coating produced has splendid sticking power; can directly be applied to any metallic surface; can direct spraying in pump valve material surface, film does not ftracture, do not come off, and film is pliable and tough stable; lasting and effective to the protectiveness of base material, antiseptic property is good.

Embodiment

To a vinylformic acid rust proof paint for pump valve surface attachment excellence, be made up of the raw material of following weight part (kilogram): the sodium hydroxide solution 40 that the ethanol 30 that methyl methacrylate 65, vinylbenzene 60, ammonium persulphate 0.5, phosphate ester monomer 4, deionized water 20, SDS2, glass flake 35, silane coupling agent KH5601, concentration are 75wt%, concentration are 10wt%, Virahol 2, pyrocatechol 3, polymethylmethacrylate 2, barium sulfate 9, talcum powder 14, red iron oxide 6, adhesion promoter 2, dispersion agent 50401.2, dehydrated alcohol is appropriate, water is appropriate.

Described a kind of vinylformic acid rust proof paint to pump valve surface attachment excellence, is prepared from by following concrete steps:

(1) deionized water is mixed with SDS, put into reactor, warming while stirring to 80 DEG C, then the methyl methacrylate of half amount, vinylbenzene and ammonium persulphate is added, constant temperature continues to add the methyl methacrylate of residual content, vinylbenzene and phosphate ester monomer after stirring 30 minutes, be incubated 2 hours, obtain the ACRYLIC EMULSION of phosphate ester-containing;

(2) pulverized by glass flake, cross 100 mesh sieves, being then placed on concentration is soak 30 minutes in the sodium hydroxide solution of 10wt%, filters, washes with water to neutrality stand-by; The ethanol being 75wt% by silane coupling agent KH560 and concentration is mixed to form solution, is placed in one by the glass flake after above-mentioned alkaline purification, uniform stirring 30 minutes, in an oven with the temperature of 90 DEG C drying 2 hours after filtration, obtains surface modified glass scale;

(3) join in the dehydrated alcohol of total amount equivalent by barium sulfate, talcum powder, red iron oxide, polymethylmethacrylate, grinding distribution 30 minutes, is heated to 80 DEG C, evaporates dehydrated alcohol, then puts into baking oven dry, grinding distribution, crosses 200 mesh sieves; Dispersion agent 5040 is distributed in the water of 30 times amount, adds above-mentioned 200 order powder, stir 40 minutes with the speed of 600 revs/min, then Virahol, pyrocatechol is added, speed-raising is stirred to the speed of 2000 revs/min, until slurry fineness is less than 45 μm, obtains mixed slurry;

(4) mixed slurry that ACRYLIC EMULSION and the step (3) of the phosphate ester-containing finally step (1) obtained obtain mixes, and adds all the other remaining components, stirs and get final product with the speed of 600 revs/min.

Coating of the present invention can reach even stability in storage more than 18 months, and resistance to salt water 17 days is non-foaming, and salt fog resistance 10 days is non-foaming, and water tolerance 16 days is non-foaming, and sticking power reaches 1 grade, and in 30 minutes, rust transformation degree reaches 98%.

Claims (2)

1. the vinylformic acid rust proof paint to pump valve surface attachment excellence, it is characterized in that, be made up of the raw material of following weight part: methyl methacrylate 65-70, vinylbenzene 60-65, ammonium persulphate 0.5-0.6, phosphate ester monomer 4-5, deionized water 20-24, SDS2-3, glass flake 35-40, silane coupling agent KH5601-1.2, concentration is the ethanol 30-35 of 75wt%, concentration is the sodium hydroxide solution 40-43 of 10wt%, Virahol 2-3, pyrocatechol 3-4, polymethylmethacrylate 2-3, barium sulfate 9-11, talcum powder 14-16, red iron oxide 6-7, adhesion promoter 2-3, dispersion agent 50401.2-1.5, dehydrated alcohol is appropriate, water is appropriate.

2. a kind of vinylformic acid rust proof paint to pump valve surface attachment excellence according to claim 1, is characterized in that, be prepared from by following concrete steps:

(1) deionized water is mixed with SDS, put into reactor, warming while stirring is to 70-80 DEG C, then the methyl methacrylate of half amount, vinylbenzene and ammonium persulphate is added, constant temperature stirs the methyl methacrylate, vinylbenzene and the phosphate ester monomer that continue to add residual content after 30-40 minute, insulation 2-3 hour, obtains the ACRYLIC EMULSION of phosphate ester-containing;

(2) pulverized by glass flake, cross 100 mesh sieves, being then placed on concentration is soak 30-40 minute in the sodium hydroxide solution of 10wt%, filters, washes with water to neutrality stand-by; The ethanol being 75wt% by silane coupling agent KH560 and concentration is mixed to form solution, glass flake after above-mentioned alkaline purification is placed in one, uniform stirring 30-40 minute, in an oven with the dry 2-2.5 hour of the temperature of 80-90 DEG C after filtration, obtains surface modified glass scale;

(3) join in the dehydrated alcohol of total amount equivalent by barium sulfate, talcum powder, red iron oxide, polymethylmethacrylate, grinding distribution 30-40 minute, is heated to 75-85 DEG C, evaporate dehydrated alcohol, then put into baking oven dry, grinding distribution, cross 200 mesh sieves; Dispersion agent 5040 is distributed in the water of 30-32 times amount, adds above-mentioned 200 order powder, stir 40-50 minute with the speed of 600 revs/min, then Virahol, pyrocatechol is added, speed-raising is stirred to the speed of 2000 revs/min, until slurry fineness is less than 45 μm, obtains mixed slurry;

(4) mixed slurry that ACRYLIC EMULSION and the step (3) of the phosphate ester-containing finally step (1) obtained obtain mixes, and adds all the other remaining components, stirs and get final product with the speed of 600 revs/min.