CN113444426A - Water-based epoxy anti-rust primer and preparation method thereof - Google Patents
Water-based epoxy anti-rust primer and preparation method thereof Download PDFInfo
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- CN113444426A CN113444426A CN202110965469.9A CN202110965469A CN113444426A CN 113444426 A CN113444426 A CN 113444426A CN 202110965469 A CN202110965469 A CN 202110965469A CN 113444426 A CN113444426 A CN 113444426A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000004593 Epoxy Substances 0.000 title claims abstract description 41
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 56
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 claims description 58
- 239000000945 filler Substances 0.000 claims description 40
- 238000000227 grinding Methods 0.000 claims description 37
- 239000006185 dispersion Substances 0.000 claims description 33
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 150000001412 amines Chemical class 0.000 claims description 18
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 230000002401 inhibitory effect Effects 0.000 claims description 10
- 239000002562 thickening agent Substances 0.000 claims description 10
- 239000010445 mica Substances 0.000 claims description 9
- 229910052618 mica group Inorganic materials 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 8
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 6
- 239000013530 defoamer Substances 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 238000010130 dispersion processing Methods 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 30
- 239000002994 raw material Substances 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 10
- 239000012855 volatile organic compound Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000010456 wollastonite Substances 0.000 description 5
- 229910052882 wollastonite Inorganic materials 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910002012 Aerosil® Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based epoxy anti-rust primer and a preparation method thereof, wherein the water-based epoxy anti-rust primer takes water-based epoxy resin as a base material, integrates the physical and chemical anti-rust raw material proportion, adopts a water-based system, mainly discharges water vapor which is harmless to human bodies, is low-carbon and environment-friendly, has low VOC (volatile organic compounds) discharge, is beneficial to the health of construction workers, has good corrosion resistance and adhesive force, ensures the service life after construction, is beneficial to popularization, and has a simple preparation method.
Description
Technical Field
The invention relates to the technical field of seal coat, in particular to a water-based epoxy anti-rust primer and a preparation method thereof.
Background
The seal primer is mainly used for playing a role in preventing moisture and resisting alkali isolation, effectively isolating alkali of a base layer and preventing the alkali from seeping to damage a coating. At present, the seal primer is mainly composed of two components, wherein one component is high-permeability water-based epoxy resin liquid, and the other component is a special curing agent, and is suitable for being used as the seal primer on the surfaces of base materials such as concrete, wood, terrazzo, steel and the like.
The sealing primer has two types of dissolubility and water-based property, the dissolubility is strong in sealing bottom penetration, the sealing property is strong, the water-based sealing bottom VOC is less, the environment is friendly, and the body health of construction workers is facilitated. The method is characterized in that closed bonding base materials are selected according to the type and the condition of a substrate, base materials which are strong in permeability and strong in sealing and can reinforce the substrate are selected for a loose porous substrate, base materials with strong bonding performance are selected for a compact and smooth substrate, and good interlayer adhesion is required.
Most of the existing epoxy primer is an oily system, and the used solvent is mainly benzene harmful gas, which is not good for the health of construction workers and can increase the emission of air carbon.
Disclosure of Invention
In order to overcome the problems in the related art, the invention discloses a water-based epoxy anti-rust primer and a preparation method thereof.
According to a first aspect of the disclosed embodiments, there is provided a waterborne epoxy rust inhibitive primer consisting of: a filler component, an epoxy resin component, and a curing agent;
wherein the weight ratio of the filler to the curing agent is 4: 1;
the weight ratio of the epoxy resin component to the mixture of the filler and the curing agent is 1: 1.
Preferably, the filler component consists of, by weight: 10-20 parts of ferric oxide, 1-3 parts of zinc yellow, 0-20 parts of titanium dioxide, 0-15 parts of talcum powder, 10-20 parts of superfine barium sulfate, 10-20 parts of water, 5 parts of film-forming agent, 0.5-1 part of gas silica, 0-3 parts of mica powder and 1-3 parts of dispersing agent.
More preferably, the dispersant is BYK-190 dispersant.
Further preferably, the epoxy resin component consists of, by weight: 100 parts of epoxy resin and 0.5 part of silane coupling agent.
Further preferably, the epoxy resin is an aqueous epoxy emulsion, and the epoxy equivalent is 450-500;
or, the silane coupling agent is an aqueous silane coupling agent.
Further preferably, the curing agent consists of the following components by weight: 55 parts of amine curing agent, 33.8 parts of water, 8 parts of film forming agent and 3.2 parts of additive.
Further preferably, the film forming agent is one of propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene glycol monobutyl ether or ethylene glycol butyl ether.
Further preferably, the additive consists of the following components by weight: 0.6 part of epoxy resin accelerator, 0.5 part of thickener bentonite, 0.5 part of thickener BYK-3810.5 part, 0.5 part of flash rust inhibitor, 0.3 part of defoamer DF-104E, 0.3 part of defoamer DF-110D and 41000.5 parts of wetting agent TEGO.
More preferably, the amine curing agent is an aqueous amine curing agent and has an amine value of 200.
According to a second aspect of the disclosed embodiments of the present invention, there is provided a method for preparing a water-based epoxy rust inhibitive primer, the method comprising the steps of:
1) taking the filler component, the epoxy resin component and the curing agent for later use;
2) putting the filler component into a grinder for grinding until the granularity is less than 20 microns for later use;
3) putting the ground filler component and the curing agent into a dispersion machine according to the weight ratio of 4:1, and performing dispersion processing to obtain a mixture of the filler component and the curing agent for later use;
4) putting the epoxy resin component into a dispersion machine, and performing dispersion processing for later use;
5) and mixing the mixture of the standby filler component and the curing agent with the standby epoxy resin component according to the weight ratio of 1:1 to obtain the water-based epoxy antirust primer.
Preferably, the grinding power of the grinder in the step 2) is 20-22KW, and the grinding time is 60-70 min.
Further preferably, the working speed of the disperser in the step 3) is 1000-.
Further preferably, the working rotating speed of the dispersing machine in the step 4) is 300-.
The waterborne epoxy anti-rust primer provided by the invention takes waterborne epoxy resin as a base material, and combines the physical and chemical anti-rust raw material proportion, so that the anti-rust paint is environment-friendly, has less VOC (volatile organic compound) emission, is beneficial to the health of construction workers, is low-carbon and environment-friendly, has good corrosion resistance and adhesive force, ensures the service life after construction, and is beneficial to popularization.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Detailed Description
The invention is further illustrated with reference to specific embodiments, but is not intended to limit the scope of the invention.
In order to provide a seal coat with strong adhesion, compactness and smoothness, the embodiment provides a water-based epoxy anti-rust primer, which consists of the following components: a filler component, an epoxy resin component, and a curing agent;
wherein the weight ratio of the filler to the curing agent is 4: 1;
the weight ratio of the epoxy resin component to the mixture of filler and the curing agent is 1: 1.
The seal primer adopts a water-based system, air emission is mainly water vapor which is harmless to human bodies, and the seal primer is low-carbon and environment-friendly.
Wherein, the filler component comprises the following components by weight: 10-20 parts of ferric oxide, 1-3 parts of zinc yellow, 0-20 parts of titanium dioxide, 0-15 parts of talcum powder, 10-20 parts of superfine barium sulfate, 10-20 parts of water, 5 parts of film-forming agent, 0.5-1 part of gas silica, 0-3 parts of mica powder and 1-3 parts of dispersing agent. Preferably, the dispersant is a BYK-190 dispersant.
The titanium dioxide in the filler has good reinforcing performance and can increase the tensile strength and hardness; wollastonite is added to increase the tensile strength of the primer; the talcum powder can increase the thickness of the primer and reduce the cost; the superfine barium sulfate can absorb bubbles generated during stirring and help leveling, and the superfine barium sulfate has a certain reinforcing effect when added into the primer; the acid resistance, alkali resistance and corrosion resistance of the primer are improved by the ferric oxide and the zinc yellow powder; the whiteness of the mica powder is increased, the mica powder is slightly reinforced, and the viscosity of the primer is increased; the gas silicon has good reinforcing performance, and the viscous thixotropic property is increased; the dispersant BYK-190 can increase the dispersion performance of the filler in an aqueous system and reduce the sedimentation of the filler.
The epoxy resin component comprises the following components in parts by weight: 100 parts of epoxy resin and 0.5 part of silane coupling agent.
The epoxy resin is preferably aqueous epoxy emulsion, the epoxy equivalent is 450-500, the resin has both toughness and crosslinking strength, the tensile strength and the elongation at break after film formation are balanced, and the silane coupling agent is preferably aqueous silane coupling agent, so that the bonding force between the epoxy resin and metal can be increased.
The curing agent comprises the following components in parts by weight: 55 parts of amine curing agent, 33.8 parts of water, 8 parts of film forming agent and 3.2 parts of additive.
Wherein, the amine curing agent can enable the epoxy resin to be crosslinked into a film, the reaction speed is moderate, and carbon-nitrogen bonds are introduced to increase the strength of the resin. The film forming agent can accelerate the volatilization of water, is matched with the curing speed of epoxy resin, eliminates the phenomenon of bubble pinholes which are easy to appear in a water-based paint system, reduces the contact angle between the water-based primer and metal, overcomes the defects of large water surface tension and easy shrinkage, and ensures that the primer is uniformly distributed on the surface of the metal.
Wherein the film forming agent can be one of propylene glycol monomethyl ether PM, dipropylene glycol monomethyl ether DPM, propylene glycol monobutyl ether PNB, dipropylene glycol monobutyl ether DPNB and ethylene glycol monobutyl ether BCS; the additive comprises the following components in parts by weight: 0.6 part of epoxy resin accelerator, 0.5 part of thickener bentonite, 0.5 part of thickener BYK-3810.5 part, 0.5 part of flash rust inhibitor, 0.3 part of defoamer DF-104E, 0.3 part of defoamer DF-110D and 41000.5 parts of wetting agent TEGO.
The epoxy accelerator in the additive can accelerate the post-curing of the resin; the thickening agent helps the paint not to sag when being brushed and enables the primer filler not to settle; the defoaming agent eliminates bubbles generated when the water solvent is volatilized during brushing and stirring; the wetting agent is matched with the film forming agent, so that the primer is uniformly distributed on the metal surface, and the coating is more convenient. Due to the aqueous system, the addition of the flash rust inhibitor prevents the metal from being corroded by the aqueous solvent during the primer curing process.
The amine curing agent is a water-based amine curing agent, the amine value is 200, the amine curing agent can enable the epoxy resin to be crosslinked into a film, the reaction speed is moderate, and carbon-nitrogen bonds are introduced to increase the strength of the resin.
The preparation method of the water-based epoxy anti-rust primer specifically comprises the following steps:
1) taking the filler component, the epoxy resin component and the curing agent for later use;
2) putting the filler component into a grinder for grinding until the granularity is less than 20 microns for later use;
3) putting the ground filler component and the curing agent into a dispersion machine according to the weight ratio of 4:1, and performing dispersion processing to obtain a mixture of the filler component and the curing agent for later use;
4) putting the epoxy resin components into a dispersion machine, and performing dispersion processing for later use;
5) and mixing the mixture of the standby filler component and the curing agent with the standby epoxy resin component according to the weight ratio of 1:1 to obtain the water-based epoxy antirust primer.
In actual use, it is preferable to mix a mixture of a filler component and a curing agent for use and an epoxy resin component for use at the time of application.
Wherein, the grinding power of the grinder in the step 2) is 20-22KW, and the grinding time is 60-70 min; the working speed of the dispersion machine in the step 3) is 1000-1500r/min, and the working time is 30-40 min; the working rotating speed of the dispersion machine in the step 4) is 300-400r/min, and the working time is 5-10 min.
The present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the invention.
Example 1:
(1) the raw material ratio is as follows: according to the weight portion, 13 portions of ferric oxide, 2 portions of zinc yellow, 20 portions of titanium dioxide, 10 portions of talcum powder, 12 portions of superfine barium sulfate, 15 portions of water, 5 portions of DPM, 0.5 portion of fumed silica, 0.5 portion of mica powder and 1902 portions of BYK are selected, and the total amount of 80 portions is the filler component A. 100 parts of aqueous epoxy solution and 2000.5 parts of aqueous silane coupling agent MP as an epoxy resin component. 55 parts of water-based amine curing agent, 300.6 parts of accelerator DMP, 33.8 parts of water, 8 parts of BCS, 0.5 part of bentonite, 0.5 part of flash rust inhibitor, 0.3 part of DF-104E, 0.3 part of DF-110D, 100 parts of TEGO 41000.5 and BYK-3810.5 as the total amount of curing agent;
(2) grinding raw materials: and (2) putting the filler component A into a grinding machine for grinding, wherein the grinding time of 22KW grinding operations of the grinding machine is 60min, the fineness of the ground material is less than or equal to 20 micrometers, so that a material A1 is obtained, a filter screen is arranged at the outlet of the grinding machine, and meshes of the filter screen are replaced according to the fineness of the material.
(3) Raw material dispersion: mixing A1 component and curing agent 4:1, putting the mixture into a dispersion machine, controlling the speed of the dispersion machine to process for a period of time to obtain a high-speed dispersed material A2, taking out the high-speed dispersed material A2, putting the proportioned raw materials of the epoxy resin component into the dispersion machine, and carrying out the same operation to obtain the epoxy resin component of the material. When the raw materials of the A2 group are processed, the working speed of the dispersion machine is 1500r/min, the working time is 40min, when the raw materials of the epoxy resin component are processed, the working speed of the dispersion machine is 350r/min, and the working time is 10 min.
(4) During construction, the A2 and the epoxy resin are mixed evenly according to the proportion of 100 to 100 and then brushed or sprayed.
Example 2:
(1) the raw material ratio is as follows: according to the weight portion, 13 portions of ferric oxide, 2 portions of zinc yellow, 20 portions of titanium dioxide, 10 portions of wollastonite powder, 12 portions of superfine barium sulfate, 15 portions of water, 5 portions of PM, 0.5 portion of silicon dioxide, 0.5 portion of mica powder and 1902 portions of BYK are selected, and the total amount of 80 portions is the filler component A. 100 parts of aqueous epoxy solution and 2000.5 parts of aqueous silane coupling agent MP as an epoxy resin component. 55 parts of water-based amine curing agent, 300.6 parts of accelerator DMP, 33.8 parts of water, 8 parts of PNB, 0.5 part of polyurethane associated thickener, 0.5 part of flash rust inhibitor, 0.3 part of DF-104E, 0.3 part of DF-110D, 100 parts of TEGO 41000.5 parts and BYK-3810.5 parts as curing agent;
(2) grinding raw materials: and (3) putting the filler component A into a grinding machine for grinding, wherein the grinding time of 22KW grinding operations of the grinding machine is 60min, the fineness of the ground material is less than or equal to 20 micrometers, so that a material A1 is obtained, a filter screen is arranged at the outlet of the grinding machine, and meshes of the filter screen are replaced according to the fineness of the material.
(3) Raw material dispersion: mixing A1 component and curing agent 4:1, putting the mixture into a dispersion machine, controlling the speed of the dispersion machine to process for a period of time to obtain a high-speed dispersed material A2, taking out the high-speed dispersed material A2, putting the proportioned raw materials of the epoxy resin component into the dispersion machine, and carrying out the same operation to obtain the epoxy resin component of the material. When the raw materials of the A2 group are processed, the working speed of the dispersion machine is 1500r/min, and the working time is 40min, and when the raw materials of the epoxy resin component are processed, the working speed of the dispersion machine is 350r/min, and the working time is 10 min.
(4) During construction, the A2 and the epoxy resin are mixed evenly according to the proportion of 100 to 100 and then brushed or sprayed.
Example 3:
(1) the raw material ratio is as follows: according to the weight parts, 13 parts of ferric oxide, 2 parts of zinc yellow, 12 parts of titanium dioxide, 18 parts of wollastonite powder, 12 parts of superfine barium sulfate, 15 parts of water, 5 parts of DPM, 0.5 part of aerosil, 0.5 part of mica powder and 1902 parts of BYK are selected, and the total weight of 80 parts of the filler component A. 100 parts of aqueous epoxy solution and 2000.5 parts of aqueous silane coupling agent MP as an epoxy resin component. 55 parts of water-based amine curing agent, 300.6 parts of accelerator DMP, 33.8 parts of water, 8 parts of DPNB, 0.5 part of polyurethane associated thickener, 0.5 part of flash rust inhibitor, 0.3 part of DF-104E, 0.3 part of DF-110D, 100 parts of TEGO 41000.5 parts and BYK-3810.5 parts as curing agent;
(2) grinding raw materials: and (3) putting the filler component A into a grinding machine for grinding, wherein the grinding time of 22KW grinding operations of the grinding machine is 60min, the fineness of the ground material is less than or equal to 20 micrometers, so that a material A1 is obtained, a filter screen is arranged at the outlet of the grinding machine, and meshes of the filter screen are replaced according to the fineness of the material.
(3) Raw material dispersion: mixing A1 component and curing agent 4:1, putting the mixture into a dispersion machine, controlling the speed of the dispersion machine to process for a period of time to obtain a high-speed dispersed material A2, taking out the high-speed dispersed material A2, putting the proportioned raw materials of the epoxy resin component into the dispersion machine, and carrying out the same operation to obtain the epoxy resin component of the material. When the raw materials of the A2 group are processed, the working speed of the dispersion machine is 1500r/min, the working time is 40min, when the raw materials of the epoxy resin component are processed, the working speed of the dispersion machine is 350r/min, and the working time is 10 min.
(4) During construction, the A2 and the epoxy resin are mixed evenly according to the proportion of 100 to 100 and then brushed or sprayed.
Example 4:
(1) the raw material ratio is as follows: according to the weight parts, 13 parts of ferric oxide, 2 parts of zinc yellow, 20 parts of titanium dioxide, 12 parts of wollastonite powder, 10 parts of superfine barium sulfate, 15 parts of water, 5 parts of DPM, 0.5 part of aerosil, 0.5 part of mica powder and 1902 parts of BYK are selected, and the total weight of 80 parts of the filler component A. 100 parts of aqueous epoxy solution and 2000.5 parts of aqueous silane coupling agent MP as an epoxy resin component. 55 parts of water-based amine curing agent, 300.6 parts of accelerator DMP, 33.8 parts of water, 8 parts of DPNB, 0.5 part of polyurethane associated thickener, 0.5 part of flash rust inhibitor, 0.3 part of DF-104E, 0.3 part of DF-110D, 100 parts of TEGO 41000.5 parts and BYK-3810.5 parts as curing agent;
(2) grinding raw materials: and (3) putting the filler component A into a grinding machine for grinding, wherein the grinding time of 22KW grinding operations of the grinding machine is 60min, the fineness of the ground material is less than or equal to 20 micrometers, so that a material A1 is obtained, a filter screen is arranged at the outlet of the grinding machine, and meshes of the filter screen are replaced according to the fineness of the material.
(3) Raw material dispersion: mixing the A1 component with the epoxy resin component 4: 5, putting the mixture into a dispersion machine, controlling the speed of the dispersion machine to process for a period of time to obtain a high-speed dispersed material A2, taking out the high-speed dispersed material A2, putting the proportioned raw materials of the epoxy resin component into the dispersion machine, and carrying out the same operation to obtain the epoxy resin component of the material. When the raw materials of the A2 group are processed, the working speed of the dispersion machine is 1500r/min, the working time is 40min, when the raw materials of the epoxy resin component are processed, the working speed of the dispersion machine 5 is 350r/min, and the working time is 30 min.
(4) During construction, the A2 and the epoxy resin are mixed uniformly according to the proportion of 9 to 1 and then brushed or sprayed.
Example 5
The performance of the waterborne epoxy anti-rust primer prepared in the examples 1 to 4 is tested, and the final test results are shown in the following table 1.
Table 1: results of performance testing
The test result shows that the cost can be reduced by adding the talcum powder, but the performance is the worst, the hardness and the mechanical strength of the primer can be obviously improved by the titanium dioxide, and the wollastonite has larger contribution to the toughness and better impact resistance. Different waterborne epoxy primer formulations can be adopted according to different requirements.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (13)
1. The water-based epoxy anti-rust primer is characterized by comprising the following components: a filler component, an epoxy resin component, and a curing agent;
wherein the weight ratio of the filler to the curing agent is 4: 1;
the weight ratio of the epoxy resin component to the mixture of the filler and the curing agent is 1: 1.
2. The aqueous epoxy rust inhibitive primer according to claim 1, characterized in that the filler component consists of, by weight: 10-20 parts of ferric oxide, 1-3 parts of zinc yellow, 1-20 parts of titanium dioxide, 0-15 parts of talcum powder, 10-20 parts of superfine barium sulfate, 10-20 parts of water, 5 parts of film-forming agent, 0.5-1 part of gas silica, 0-3 parts of mica powder and 1-3 parts of dispersing agent.
3. The waterborne epoxy rust inhibitive primer of claim 2, wherein the dispersant is a BYK-190 dispersant.
4. The aqueous epoxy rust inhibitive primer according to claim 1, characterized in that the epoxy resin component consists of, by weight: 100 parts of epoxy resin and 0.5 part of silane coupling agent.
5. The waterborne epoxy rust inhibitive primer as claimed in claim 4, wherein the epoxy resin is a waterborne epoxy emulsion, and the epoxy equivalent weight is 450-500;
or, the silane coupling agent is an aqueous silane coupling agent.
6. The aqueous epoxy rust inhibitive primer according to claim 1, characterized in that the curing agent consists of the following ingredients by weight: 55 parts of amine curing agent, 33.8 parts of water, 8 parts of film forming agent and 3.2 parts of additive.
7. The waterborne epoxy rust inhibitive primer of claim 6, wherein the film former is one of propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene glycol monobutyl ether, or ethylene glycol butyl ether.
8. The waterborne epoxy rust inhibitive primer of claim 6, characterized in that the additive consists of, by weight: 0.6 part of epoxy resin accelerator, 0.5 part of thickener bentonite, 0.5 part of thickener BYK-3810.5 part, 0.5 part of flash rust inhibitor, 0.3 part of defoamer DF-104E, 0.3 part of defoamer DF-110D and 41000.5 parts of wetting agent TEGO.
9. The water-based epoxy rust inhibitive primer according to claim 6, wherein the amine-based curing agent is a water-based amine curing agent, and the amine value is 200.
10. A method for preparing the water-based epoxy anti-rust primer according to claims 1 to 9, characterized by comprising the steps of:
1) taking the filler component, the epoxy resin component and the curing agent for later use;
2) putting the filler component into a grinder for grinding until the granularity is less than 20 microns for later use;
3) putting the ground filler component and the curing agent into a dispersion machine according to the weight ratio of 4:1, and performing dispersion processing to obtain a mixture of the filler component and the curing agent for later use;
4) putting the epoxy resin component into a dispersion machine, and performing dispersion processing for later use;
5) and mixing the mixture of the standby filler component and the curing agent with the standby epoxy resin component according to the weight ratio of 1:1 to obtain the water-based epoxy antirust primer.
11. The method for preparing the water-based epoxy anti-rust primer according to claim 10, wherein the grinding power of the grinder in the step 2) is 20-22KW, and the grinding time is 60-70 min.
12. The preparation method of the waterborne epoxy antirust primer as claimed in claim 10, wherein the working speed of the disperser in step 3) is 1000-.
13. The method for preparing the waterborne epoxy anti-rust primer as claimed in claim 10, wherein the operating speed of the disperser in the step 4) is 300-400r/min, and the operating time is 5-10 min.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022281A (en) * | 2017-06-05 | 2017-08-08 | 四川奥林涂料工业有限公司 | A kind of epoxy anticorrosion primer and preparation method thereof |
| CN107459911A (en) * | 2017-09-07 | 2017-12-12 | 立邦工业涂料(上海)有限公司 | A kind of bi-component aqueous epoxy anti-corrosive primer and preparation method thereof |
| CN110540790A (en) * | 2019-09-09 | 2019-12-06 | 江苏德威涂料有限公司 | water-based epoxy anticorrosive primer for container |
| CN112341904A (en) * | 2020-11-23 | 2021-02-09 | 湘江涂料科技有限公司 | Quick-drying water-based epoxy anti-corrosion primer and preparation method thereof |
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2021
- 2021-08-23 CN CN202110965469.9A patent/CN113444426A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022281A (en) * | 2017-06-05 | 2017-08-08 | 四川奥林涂料工业有限公司 | A kind of epoxy anticorrosion primer and preparation method thereof |
| CN107459911A (en) * | 2017-09-07 | 2017-12-12 | 立邦工业涂料(上海)有限公司 | A kind of bi-component aqueous epoxy anti-corrosive primer and preparation method thereof |
| CN110540790A (en) * | 2019-09-09 | 2019-12-06 | 江苏德威涂料有限公司 | water-based epoxy anticorrosive primer for container |
| CN112341904A (en) * | 2020-11-23 | 2021-02-09 | 湘江涂料科技有限公司 | Quick-drying water-based epoxy anti-corrosion primer and preparation method thereof |
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