CN111909361A - Water-based epoxy curing agent for engineering machinery anticorrosive paint - Google Patents
Water-based epoxy curing agent for engineering machinery anticorrosive paint Download PDFInfo
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- CN111909361A CN111909361A CN202010896838.9A CN202010896838A CN111909361A CN 111909361 A CN111909361 A CN 111909361A CN 202010896838 A CN202010896838 A CN 202010896838A CN 111909361 A CN111909361 A CN 111909361A
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- Prior art keywords
- reaction kettle
- curing agent
- parts
- epoxy curing
- engineering machinery
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 51
- 239000004593 Epoxy Substances 0.000 title claims abstract description 33
- 239000003973 paint Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 89
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 26
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004814 polyurethane Substances 0.000 claims abstract description 26
- 229920002635 polyurethane Polymers 0.000 claims abstract description 26
- 239000004698 Polyethylene Substances 0.000 claims abstract description 22
- QOHMWDJIBGVPIF-UHFFFAOYSA-N n',n'-diethylpropane-1,3-diamine Chemical compound CCN(CC)CCCN QOHMWDJIBGVPIF-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920000768 polyamine Polymers 0.000 claims abstract description 22
- -1 polyethylene Polymers 0.000 claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 claims abstract description 22
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 22
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 22
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 68
- 238000001723 curing Methods 0.000 claims description 54
- 239000000843 powder Substances 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000003960 organic solvent Substances 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 6
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 12
- 230000001070 adhesive effect Effects 0.000 abstract description 11
- GLBHAWAMATUOBB-UHFFFAOYSA-N 6,6-dimethylheptane-1,1-diamine Chemical compound CC(C)(C)CCCCC(N)N GLBHAWAMATUOBB-UHFFFAOYSA-N 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 25
- 239000003063 flame retardant Substances 0.000 description 25
- 150000001412 amines Chemical class 0.000 description 8
- 239000012796 inorganic flame retardant Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 231100000053 low toxicity Toxicity 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000001029 thermal curing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4057—Carbamates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
- C08G59/5013—Amines aliphatic containing more than seven carbon atoms, e.g. fatty amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
- C08G59/502—Polyalkylene polyamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5046—Amines heterocyclic
- C08G59/5053—Amines heterocyclic containing only nitrogen as a heteroatom
- C08G59/508—Amines heterocyclic containing only nitrogen as a heteroatom having three nitrogen atoms in the ring
- C08G59/5086—Triazines; Melamines; Guanamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
-
- 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
Abstract
The invention discloses a water-based epoxy curing agent for an engineering machinery anticorrosive paint, which has the technical scheme that: the composite material comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethylhexamethylenediamine, the auxiliary material comprises antimony trioxide, melamine and polyurethane, and the main material comprises the following components in parts by mass: vinyl triamine: 30-60 parts of polyethylene polyamine: 30-60 parts of diethylaminopropylamine: 50-80 parts of water-based epoxy curing agent for engineering machinery anticorrosive paint, which has the following beneficial effects: by arranging the main material consisting of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethyl hexanediamine and the auxiliary material consisting of the antimony trioxide, the melamine and the polyurethane, the finally prepared waterborne epoxy curing agent has better color stability, and simultaneously has better adhesive property and chemical corrosion resistance.
Description
Technical Field
The invention relates to the technical field of curing agents, in particular to a water-based epoxy curing agent for an engineering machinery anticorrosive paint.
Background
Curing agents, also known as hardeners, curing agents or setting agents, are a class of substances or mixtures that enhance or control the curing reaction. The resin curing is carried out by adding a curing (crosslinking) agent to a thermosetting resin through chemical reactions such as condensation, ring closure, addition or catalysis to cause irreversible change of the thermosetting resin. The curing agent is an indispensable additive, and the curing agent is required to be added when the epoxy resin is used as an adhesive, a coating and a casting material, otherwise, the epoxy resin cannot be cured. The variety of the curing agent has great influence on the mechanical property, heat resistance, water resistance, corrosion resistance and the like of a cured product;
the resin in the form of the aqueous epoxy can form three water-dispersible forms through different aqueous routes: water-soluble; dispersing micelle; emulsion and epoxy resin are thermoplastic linear structures, solid state is changed into liquid state after being heated, high viscosity is changed into low viscosity, and the emulsion and the epoxy resin have practical value only when being matched with a curing agent for use (a latent curing agent needs to be added into a pure single-component waterborne epoxy system). Therefore, the waterborne epoxy system should comprise a waterborne epoxy resin and a waterborne epoxy curing agent, and the three forms of water dispersion can be formed by different waterborne approaches respectively.
At present, a plurality of anticorrosion paints for machinery are prepared by adding a water-based epoxy curing agent, but the existing water-based epoxy curing agent often has some performance defects, so that the function of the anticorrosion paint is lost, for example, the anticorrosion paint is easy to fall off after long-term use, accidents are easy to cause by high-temperature open fire, and the use is unsafe.
Therefore, the invention is necessary to invent a water-based epoxy curing agent for the engineering machinery anticorrosive paint.
Disclosure of Invention
Therefore, the invention provides the water-based epoxy curing agent for the engineering machinery anticorrosive paint, which is characterized in that the water-based epoxy curing agent finally prepared has better color stability, better bonding performance and chemical corrosion resistance, further improved storage time, good electrical property and mechanical property, low volatility, lower manufacturing cost, more economy, excellent flame retardant and flame retardant capability and more reliability and safety in actual use by arranging the main material consisting of vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethylhexamethylenediamine and the auxiliary material consisting of antimony trioxide, melamine and polyurethane, so that the problem that the traditional curing agent in the prior art does not have flame retardant capability and has weaker multiple properties, the anticorrosive paint prepared in actual use is easy to fall off after long-term use, The high temperature open fire is easy to cause accidents, and the use is unsafe.
In order to achieve the above purpose, the invention provides the following technical scheme: the waterborne epoxy curing agent for the engineering machinery anticorrosive paint comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethyl hexamethylene diamine, and the auxiliary material comprises antimony trioxide, melamine and polyurethane.
Preferably, the main material comprises the following components in parts by weight:
vinyl triamine: 30-60 parts
Polyethylene polyamine: 30-60 parts
Diethylaminopropylamine: 50-80 parts of
Trimethyl hexamethylene diamine: 30-50 parts.
Preferably, the auxiliary materials comprise antimony trioxide, melamine and polyurethane in parts by weight:
antimony trioxide: 5-10 parts of
Melamine: 6-12 parts of
Polyurethane: 3-5 parts.
Preferably, the method further comprises the following steps:
s1, grinding the components in the main material into fine powder, and uniformly stirring and mixing to obtain mixed main material powder;
s2, putting the mixed main material powder obtained in the step S1 into a reaction kettle, heating the reaction kettle, and adding a catalyst into the reaction kettle in the heating process;
s3, pumping out gas in the reaction kettle, decompressing the reaction kettle, and simultaneously dehydrating the interior of the reaction kettle;
s4, grinding the components in the auxiliary materials into fine powder and stirring to uniformly mix the components to obtain auxiliary material powder;
s5, adding the auxiliary material powder into the reaction kettle, adding the organic solvent, and continuously heating the reaction kettle to obtain the transparent liquid curing agent.
Preferably, the heating temperature of the reaction kettle in the S2 is 60-100 ℃, and the heat preservation time is 1 hour.
Preferably, the catalyst is dibutyltin dilaurate or stannous octoate.
Preferably, the S2 is carried out while the reaction kettle is heated, and the reaction kettle is filled with inert gas under pressure protection, wherein the inert gas is nitrogen.
Preferably, the organic solvent in S5 is ethylene glycol ether, and the mass portion of the organic solvent is 40-80.
Preferably, the heating temperature in the S5 is 120-160 ℃, and the heat preservation time is 2 hours.
The invention has the beneficial effects that:
according to the invention, by arranging the main material consisting of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethyl hexamethylene diamine and the auxiliary material consisting of the antimony trioxide, the melamine and the polyurethane, the finally prepared water-based epoxy curing agent has better color stability, better adhesive property and chemical corrosion resistance, further improved storage time, good electrical property and mechanical property, low volatility, lower manufacturing cost, more economy, excellent flame retardant and flame retardant capability and more reliability and safety in practical use.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1:
the invention provides a water-based epoxy curing agent for an engineering machinery anticorrosive coating, which comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethylhexanediamine, and the auxiliary material comprises antimony trioxide, melamine and polyurethane;
further, in the main material, the parts by weight of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethyl hexamethylene diamine are respectively as follows:
vinyl triamine: 60 parts of the amine can prevent the phenomena of amine blooming and water spots; good color stability; the adhesive has good adhesive property and chemical corrosion resistance; the optional range of the curing time and the storage time is wider; when used for thermal curing, has good high-temperature performance; the material has good chemical corrosion resistance and good electrical property and mechanical property;
polyethylene polyamine: 30 parts, low toxicity, low volatility, long working life, low price and low cost;
diethylaminopropylamine: 50 portions of
Trimethyl hexamethylene diamine: 30 parts, and has better bending resistance and tensile resistance;
further, the auxiliary materials comprise antimony trioxide, melamine and polyurethane in parts by weight:
antimony trioxide: 10 parts of antimony trioxide, which is an inorganic flame retardant;
melamine: 12 parts of melamine which is an organic flame retardant;
polyurethane: 5, polyurethane is a nitrogen flame retardant, and the flame retardant property of the curing agent prepared by the invention can be effectively improved by adding an organic flame retardant, an inorganic flame retardant and the nitrogen flame retardant;
further, the method also comprises the following steps:
s1, grinding the components in the main material into fine powder, and uniformly stirring and mixing to obtain mixed main material powder;
s2, putting the mixed main material powder obtained in the step S1 into a reaction kettle, heating the reaction kettle, and adding a catalyst into the reaction kettle in the heating process;
s3, pumping out gas in the reaction kettle, decompressing the reaction kettle, and simultaneously dehydrating the interior of the reaction kettle;
s4, grinding the components in the auxiliary materials into fine powder and stirring to uniformly mix the components to obtain auxiliary material powder;
s5, adding the auxiliary material powder into a reaction kettle, adding an organic solvent at the same time, and continuously heating the reaction kettle to obtain a transparent liquid curing agent;
further, the heating temperature of the reaction kettle in the S2 is 100 ℃, and the heat preservation time is 1 hour;
further, the catalyst is dibutyltin dilaurate or stannous octoate.
Further, when the reaction kettle is heated, the reaction kettle is filled with inert gas for pressurization protection, and the inert gas is nitrogen.
Further, the organic solvent in the S5 is ethylene glycol ether, and the mass part of the organic solvent is 60 parts.
Furthermore, the heating temperature in the S5 is 160 ℃, and the heat preservation time is 2 hours.
Example 2:
the invention provides a water-based epoxy curing agent for an engineering machinery anticorrosive coating, which comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethylhexanediamine, and the auxiliary material comprises antimony trioxide, melamine and polyurethane;
further, in the main material, the parts by weight of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethyl hexamethylene diamine are respectively as follows:
vinyl triamine: 50 parts of the amine can prevent the phenomena of amine blooming and water spots; good color stability; the adhesive has good adhesive property and chemical corrosion resistance; the optional range of the curing time and the storage time is wider; when used for thermal curing, has good high-temperature performance; the material has good chemical corrosion resistance and good electrical property and mechanical property;
polyethylene polyamine: 40 parts, low toxicity, low volatility, long working life, low price and low cost;
diethylaminopropylamine: 60 portions of
Trimethyl hexamethylene diamine: 40 parts, and has better bending resistance and tensile resistance;
further, the auxiliary materials comprise antimony trioxide, melamine and polyurethane in parts by weight:
antimony trioxide: 8 parts of antimony trioxide, which is an inorganic flame retardant;
melamine: 10 parts of melamine is an organic flame retardant;
polyurethane: 3, polyurethane is a nitrogen flame retardant, and the flame retardant property of the curing agent prepared by the invention can be effectively improved by adding an organic flame retardant, an inorganic flame retardant and the nitrogen flame retardant;
further, the method also comprises the following steps:
s1, grinding the components in the main material into fine powder, and uniformly stirring and mixing to obtain mixed main material powder;
s2, putting the mixed main material powder obtained in the step S1 into a reaction kettle, heating the reaction kettle, and adding a catalyst into the reaction kettle in the heating process;
s3, pumping out gas in the reaction kettle, decompressing the reaction kettle, and simultaneously dehydrating the interior of the reaction kettle;
s4, grinding the components in the auxiliary materials into fine powder and stirring to uniformly mix the components to obtain auxiliary material powder;
s5, adding the auxiliary material powder into a reaction kettle, adding an organic solvent at the same time, and continuously heating the reaction kettle to obtain a transparent liquid curing agent;
further, the heating temperature of the reaction kettle in the S2 is 100 ℃, and the heat preservation time is 1 hour;
further, the catalyst is dibutyltin dilaurate or stannous octoate.
Further, when the reaction kettle is heated, the reaction kettle is filled with inert gas for pressurization protection, and the inert gas is nitrogen.
Further, the organic solvent in the S5 is ethylene glycol ether, and the mass part of the organic solvent is 60 parts.
Furthermore, the heating temperature in the S5 is 160 ℃, and the heat preservation time is 2 hours.
Example 3:
the invention provides a water-based epoxy curing agent for an engineering machinery anticorrosive coating, which comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethylhexanediamine, and the auxiliary material comprises antimony trioxide, melamine and polyurethane;
further, in the main material, the parts by weight of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethyl hexamethylene diamine are respectively as follows:
vinyl triamine: 30 parts of the amine can prevent the phenomena of amine blooming and water spots; good color stability; the adhesive has good adhesive property and chemical corrosion resistance; the optional range of the curing time and the storage time is wider; when used for thermal curing, has good high-temperature performance; the material has good chemical corrosion resistance and good electrical property and mechanical property;
polyethylene polyamine: 40 parts, low toxicity, low volatility, long working life, low price and low cost;
diethylaminopropylamine: 50 portions of
Trimethyl hexamethylene diamine: 30 parts, and has better bending resistance and tensile resistance;
further, the auxiliary materials comprise antimony trioxide, melamine and polyurethane in parts by weight:
antimony trioxide: 10 parts of antimony trioxide, which is an inorganic flame retardant;
melamine: 10 parts of melamine is an organic flame retardant;
polyurethane: 5, polyurethane is a nitrogen flame retardant, and the flame retardant property of the curing agent prepared by the invention can be effectively improved by adding an organic flame retardant, an inorganic flame retardant and the nitrogen flame retardant;
further, the method also comprises the following steps:
s1, grinding the components in the main material into fine powder, and uniformly stirring and mixing to obtain mixed main material powder;
s2, putting the mixed main material powder obtained in the step S1 into a reaction kettle, heating the reaction kettle, and adding a catalyst into the reaction kettle in the heating process;
s3, pumping out gas in the reaction kettle, decompressing the reaction kettle, and simultaneously dehydrating the interior of the reaction kettle;
s4, grinding the components in the auxiliary materials into fine powder and stirring to uniformly mix the components to obtain auxiliary material powder;
s5, adding the auxiliary material powder into a reaction kettle, adding an organic solvent at the same time, and continuously heating the reaction kettle to obtain a transparent liquid curing agent;
further, the heating temperature of the reaction kettle in the S2 is 100 ℃, and the heat preservation time is 1 hour;
further, the catalyst is dibutyltin dilaurate or stannous octoate.
Further, when the reaction kettle is heated, the reaction kettle is filled with inert gas for pressurization protection, and the inert gas is nitrogen.
Further, the organic solvent in the S5 is ethylene glycol ether, and the mass part of the organic solvent is 60 parts.
Furthermore, the heating temperature in the S5 is 160 ℃, and the heat preservation time is 2 hours.
Example 4:
the invention provides a water-based epoxy curing agent for an engineering machinery anticorrosive coating, which comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethylhexanediamine, and the auxiliary material comprises antimony trioxide, melamine and polyurethane;
further, in the main material, the parts by weight of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethyl hexamethylene diamine are respectively as follows:
vinyl triamine: 30 parts of the amine can prevent the phenomena of amine blooming and water spots; good color stability; the adhesive has good adhesive property and chemical corrosion resistance; the optional range of the curing time and the storage time is wider; when used for thermal curing, has good high-temperature performance; the material has good chemical corrosion resistance and good electrical property and mechanical property;
polyethylene polyamine: 60 parts, low toxicity, low volatility, long working life, low price and low cost;
diethylaminopropylamine: 80 portions
Trimethyl hexamethylene diamine: 50 parts of the material has better bending resistance and tensile resistance;
further, the auxiliary materials comprise antimony trioxide, melamine and polyurethane in parts by weight:
antimony trioxide: 5 parts of antimony trioxide which is an inorganic flame retardant;
melamine: 6 parts of melamine which is an organic flame retardant;
polyurethane: 5, polyurethane is a nitrogen flame retardant, and the flame retardant property of the curing agent prepared by the invention can be effectively improved by adding an organic flame retardant, an inorganic flame retardant and the nitrogen flame retardant;
further, the method also comprises the following steps:
s1, grinding the components in the main material into fine powder, and uniformly stirring and mixing to obtain mixed main material powder;
s2, putting the mixed main material powder obtained in the step S1 into a reaction kettle, heating the reaction kettle, and adding a catalyst into the reaction kettle in the heating process;
s3, pumping out gas in the reaction kettle, decompressing the reaction kettle, and simultaneously dehydrating the interior of the reaction kettle;
s4, grinding the components in the auxiliary materials into fine powder and stirring to uniformly mix the components to obtain auxiliary material powder;
s5, adding the auxiliary material powder into a reaction kettle, adding an organic solvent at the same time, and continuously heating the reaction kettle to obtain a transparent liquid curing agent;
further, the heating temperature of the reaction kettle in the S2 is 100 ℃, and the heat preservation time is 1 hour;
further, the catalyst is dibutyltin dilaurate or stannous octoate.
Further, when the reaction kettle is heated, the reaction kettle is filled with inert gas for pressurization protection, and the inert gas is nitrogen.
Further, the organic solvent in the S5 is ethylene glycol ether, and the mass part of the organic solvent is 60 parts.
Furthermore, the heating temperature in the S5 is 160 ℃, and the heat preservation time is 2 hours.
The waterborne epoxy curing agents prepared in the above examples 1-4 were applied to the production of actual anticorrosive coatings and tested to obtain the following data:
as can be seen from the above table, the waterborne epoxy curing agents prepared in examples 1-4 all have better wear resistance and hardness, good curing effect, high curing hardness, and simultaneously have excellent anti-permeability, compact texture and more reliable use, wherein the waterborne epoxy curing agent prepared in example 3 has the most excellent performance.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (9)
1. A waterborne epoxy curing agent for engineering machinery anticorrosive paint is characterized in that: the composite material comprises a main material and an auxiliary material, wherein the main material comprises vinyl triamine, polyethylene polyamine, diethylaminopropylamine and trimethyl hexamethylene diamine, and the auxiliary material comprises antimony trioxide, melamine and polyurethane.
2. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 1, characterized in that: in the main material, the mass portions of the vinyl triamine, the polyethylene polyamine, the diethylaminopropylamine and the trimethylhexamethylenediamine are respectively as follows:
vinyl triamine: 30-60 parts
Polyethylene polyamine: 30-60 parts
Diethylaminopropylamine: 50-80 parts of
Trimethyl hexamethylene diamine: 30-50 parts.
3. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 1, characterized in that: the auxiliary materials comprise antimony trioxide, melamine and polyurethane in parts by weight:
antimony trioxide: 5-10 parts of
Melamine: 6-12 parts of
Polyurethane: 3-5 parts.
4. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 1, characterized in that: further comprising the steps of:
s1, grinding the components in the main material into fine powder, and uniformly stirring and mixing to obtain mixed main material powder;
s2, putting the mixed main material powder obtained in the step S1 into a reaction kettle, heating the reaction kettle, and adding a catalyst into the reaction kettle in the heating process;
s3, pumping out gas in the reaction kettle, decompressing the reaction kettle, and simultaneously dehydrating the interior of the reaction kettle;
s4, grinding the components in the auxiliary materials into fine powder and stirring to uniformly mix the components to obtain auxiliary material powder;
s5, adding the auxiliary material powder into the reaction kettle, adding the organic solvent, and continuously heating the reaction kettle to obtain the transparent liquid curing agent.
5. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 4, characterized in that: and in the S2, the heating temperature of the reaction kettle is 60-100 ℃, and the heat preservation time is 1 hour.
6. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 4, characterized in that: the catalyst is dibutyltin dilaurate or stannous octoate.
7. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 4, characterized in that: and S2 is used for filling inert gas into the reaction kettle for pressurization protection when the reaction kettle is heated, wherein the inert gas is nitrogen.
8. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 4, characterized in that: the organic solvent in the S5 is ethylene glycol ether, and the mass portion of the organic solvent is 40-80.
9. The waterborne epoxy curing agent for the engineering machinery anticorrosive paint according to claim 4, characterized in that: the heating temperature in the S5 is 120-160 ℃, and the heat preservation time is 2 hours.
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| US5906864A (en) * | 1996-06-25 | 1999-05-25 | Herberts Gesellschaft Mit Beschrankter Haftung | Aqueous coating composition and its use to produce filler coats |
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| US20150284563A1 (en) * | 2012-11-09 | 2015-10-08 | Sika Technology Ag | Polycarboxylate ethers used as dispersing agents for epoxy resins |
| US20160368822A1 (en) * | 2013-07-05 | 2016-12-22 | Sika Technology Ag | Multi-component composition |
| EP3339385A1 (en) * | 2016-12-22 | 2018-06-27 | HILTI Aktiengesellschaft | Epoxy resin composition on a water basis for coating inorganic fire protection elements |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5906864A (en) * | 1996-06-25 | 1999-05-25 | Herberts Gesellschaft Mit Beschrankter Haftung | Aqueous coating composition and its use to produce filler coats |
| JP2010018798A (en) * | 2008-06-13 | 2010-01-28 | Grow Chemical:Kk | Aqueous epoxy resin coating and foaming agent type flame retardant coating composition for indoor and outdoor use |
| CN102250535A (en) * | 2011-05-19 | 2011-11-23 | 苏州斯迪克电子胶粘材料有限公司 | Matte paint for preparing insulative bag of aircraft case inner wall and preparation method thereof |
| US20150284563A1 (en) * | 2012-11-09 | 2015-10-08 | Sika Technology Ag | Polycarboxylate ethers used as dispersing agents for epoxy resins |
| US20160368822A1 (en) * | 2013-07-05 | 2016-12-22 | Sika Technology Ag | Multi-component composition |
| EP3339385A1 (en) * | 2016-12-22 | 2018-06-27 | HILTI Aktiengesellschaft | Epoxy resin composition on a water basis for coating inorganic fire protection elements |
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