WO2015058669A1 - 一种水性环氧酯树脂的制备方法及其应用 - Google Patents
一种水性环氧酯树脂的制备方法及其应用 Download PDFInfo
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- WO2015058669A1 WO2015058669A1 PCT/CN2014/089032 CN2014089032W WO2015058669A1 WO 2015058669 A1 WO2015058669 A1 WO 2015058669A1 CN 2014089032 W CN2014089032 W CN 2014089032W WO 2015058669 A1 WO2015058669 A1 WO 2015058669A1
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- Prior art keywords
- product
- acid
- water
- ester resin
- epoxy ester
- Prior art date
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 46
- 229920005989 resin Polymers 0.000 title claims abstract description 41
- 239000011347 resin Substances 0.000 title claims abstract description 41
- 150000002148 esters Chemical class 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract 5
- 239000003822 epoxy resin Substances 0.000 claims abstract description 32
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 26
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 26
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000005642 Oleic acid Substances 0.000 claims abstract description 26
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 26
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 26
- 239000003973 paint Substances 0.000 claims abstract description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 238000005886 esterification reaction Methods 0.000 claims abstract description 6
- 239000004970 Chain extender Substances 0.000 claims abstract description 5
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 5
- 125000002091 cationic group Chemical group 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 8
- 244000060011 Cocos nucifera Species 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 5
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 5
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims description 4
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 4
- 235000010469 Glycine max Nutrition 0.000 claims description 4
- 244000068988 Glycine max Species 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical class CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 claims description 4
- 229960001124 trientine Drugs 0.000 claims description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 3
- 125000005442 diisocyanate group Chemical group 0.000 claims description 3
- 238000004945 emulsification Methods 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 3
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 3
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 3
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004471 Glycine Substances 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- 235000011054 acetic acid Nutrition 0.000 claims description 2
- 239000000159 acid neutralizing agent Substances 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000004842 bisphenol F epoxy resin Substances 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- -1 isophoroneamine Chemical compound 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- 229940018564 m-phenylenediamine Drugs 0.000 claims description 2
- 235000011007 phosphoric acid Nutrition 0.000 claims description 2
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 claims 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 claims 1
- 244000223760 Cinnamomum zeylanicum Species 0.000 claims 1
- 229930016911 cinnamic acid Natural products 0.000 claims 1
- 235000013985 cinnamic acid Nutrition 0.000 claims 1
- 235000017803 cinnamon Nutrition 0.000 claims 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 19
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000005639 Lauric acid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 235000012424 soybean oil Nutrition 0.000 description 2
- 239000003549 soybean oil Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
- 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
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
- C08G59/1455—Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
- C08G59/1461—Unsaturated monoacids
- C08G59/1472—Fatty acids
Definitions
- the present invention relates to a method for preparing an aqueous epoxy ester resin and an application thereof, and belongs to the field of water-based coatings.
- an epoxy resin is usually made into an aqueous solution by adding an emulsifier or introducing a hydrophilic group such as a hydroxyl group, a carboxylic acid, a sulfonic acid or an amine group into the epoxy resin.
- a hydrophilic group such as a hydroxyl group, a carboxylic acid, a sulfonic acid or an amine group.
- the epoxy group in the epoxy resin is relatively active, and it can react with a curing agent such as an amine at room temperature, so the epoxy resin is often made into two components.
- the two-component epoxy resin needs to be proportioned before construction, which brings inconvenience to construction and transportation.
- anionic resin type waterborne coatings are widely used, and cationic resin type coatings are mainly coated by cathodic electrophoresis due to the influence of flashing.
- the workpiece in the coating method is used as an electrophoresis cathode to avoid flashing of the workpiece.
- the cationic resin type coating applied by spraying and brushing is very prone to flash erosion, which affects and limits the promotion and application of cationic resin coating.
- cationic resin type coatings which can be sprayed have been developed, but their application is still limited to substrates such as plastics because of the failure to solve flashing on metal surfaces and stability of pigments and fillers.
- the aqueous epoxy resin or the like reported in the patent publication No. CN 102504199 A does not relate to the flash rust problem of the metal surface.
- the technical problem to be solved by the present invention is to provide a method for preparing an aqueous epoxy ester resin and an application thereof, and to solve the above-mentioned hydrophilic base residue affecting water resistance, inconvenient construction and transportation of two components, and waterborne cationic resin in metal The problem of flash rust on the surface.
- a method for preparing an aqueous epoxy ester resin Includes the following steps:
- the product VI is emulsified by dropwise addition to obtain an emulsion having a solid content of 30 wt ⁇ 3 ⁇ 4 to 70 wty, that is, an aqueous epoxy epoxide resin.
- the present invention can also be improved as follows.
- the epoxy resin A has an epoxy equivalent of between 180 and 3000.
- the oleic acid is one or more of linoleic acid, soybean oil, tol oleic acid, dehydrated ricinoleic acid, coconut oleic acid, and lauric acid, and the epoxy resin
- the molar ratio of A is 0.1 to 3:1.
- the chain extender in the step (2) is toluene diisocyanate, diphenylmethane diisocyanate, isophorone, diisocyanate, hexamethylene diisocyanate, ethylene diamine, hexamethylene diamine, two Ethylene triamine
- the molar ratio to epoxy resin A is 0.1 to 1:1.
- the epoxy resin B has an epoxy equivalent of between 180 and 3000.
- the oleic acid is one or more of linoleic acid, soybean oil, tornic acid, dehydrated ricinoleic acid, coconut oleic acid, and lauric acid, and the epoxy resin
- the molar ratio of B is from 0.1 to 3:1.
- the acid neutralizing agent in the step (5) is one or more of hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, lactic acid, tartaric acid, glycine, and the molar ratio of the product to the product is 0.1. ⁇ 3:1.
- the crosslinking agent in the step (6) is a silane coupling agent, toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, diethylene triamine, triethylene tetramine
- silane coupling agent toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, diethylene triamine, triethylene tetramine
- polyamide bisphenol A epoxy resin and bisphenol F epoxy resin
- the molar ratio of the product V to the product V is 0.1 to 3:1.
- the aqueous epoxy ester prepared by the present invention reduces the hydrophilicity of the coating film in two ways.
- the invention The prepared aqueous epoxy ester provides hydrophilicity by an amine salt-forming method without using an emulsifier, and the hydrophilicity of the coating film is lowered as the acid volatilizes during drying of the coating.
- the core material is effectively released, and chemical reaction with the hydrophilic amine in the coating film further reduces the hydrophilic group content.
- the aqueous epoxy ester prepared by the present invention protects the active epoxy group by the microcapsule principle, and is stable during storage. When the coating is volatilized, the protected core material is released.
- the epoxy ester resin prepared by the present invention retains the active epoxy group, thereby converting the two-component epoxy resin into a single component, which facilitates construction and transportation.
- the aqueous cationic epoxy ester resin needs to be neutralized by an acid in order to improve the hydrophilicity, and these acids cause flash erosion on the metal base.
- an anti-flashing aid In order to solve the flashing problem, it is often necessary to add an anti-flashing aid.
- the invention grafts a functional group having anti-flash resistance to the aqueous epoxy ester molecule by a chemical modification method, thereby effectively solving the problem of flashing of the cationic resin.
- Another technical solution to solve the above technical problems of the present invention is as follows: The use of an aqueous epoxy ester resin for preparing a cationic anticorrosive paint.
- a dispersant 120 parts by weight of deionized water is taken, and 0.5 parts by weight of a dispersant, 0.2 parts of a wetting agent, and 0.1 part of an antifoaming agent are added in a dispersed state, and then the weight is added.
- the parts are 120 parts of titanium dioxide, 40 parts of kaolin, 80 parts of barium sulfate, 60 parts of zinc phosphate and 30 parts of aluminum tripolyphosphate. After the addition, the particles are dispersed at high speed for 20 minutes, and then glass beads are added to grind to fineness.
- the epoxy ester resin prepared by the invention has wide application, can prepare antirust paint, can be sprayed, can be brushed and applied, even if sprayed on the steel surface, it will not flash rust; when the paint is cured into a film, the resin is It does not contain hydrophilic groups, which improves the water and corrosion resistance of the film.
- (6) adding 20 g of a silane coupling agent to the product V, and uniformly reacting with stirring to obtain a product VI; (7) emulsification by dropwise addition to the product VI to obtain an epoxy ester having a solid content of 40% by weight.
- the emulsion is an aqueous epoxy epoxy resin.
- the ester emulsion is an aqueous epoxy epoxy ester resin.
- aqueous epoxy epoxy ester resin is applied to a cationic anticorrosive paint, and the specific steps are as follows: taking 120 kg of deionized water, adding 0.5 kg of dispersing agent and 0.2 kg of moist in a dispersed state. Wet agent and 0.1kg of antifoaming agent, then add imi20kg of titanium dioxide, 40kg of kaolin, 80kg of barium sulfate, 60kg of zinc phosphate and 30kg of aluminum tripolyphosphate. After the addition, disperse at high speed for 20 minutes, then add glass beads.
- a color paste obtained 450kg of color paste, according to a pigment ratio of 1.5:1, adding 550kg of aqueous epoxy ester resin with a solid content of 40wt%, adding 0.3 kg of thickener, and finally adding Deionized water and mix thoroughly to obtain a cationic antirust paint.
- the obtained cationic antirust paint was sprayed on the surface of the steel, and it was found that there was no flash rust, and the resulting coating film was excellent in water resistance and corrosion resistance, and could be used for a long time.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Epoxy Resins (AREA)
- Paints Or Removers (AREA)
Abstract
一种水性环氧酯树脂的制备方法,其特征在于,包括以下步骤:环氧树脂A与油酸在90~220℃下发生酯化反应得到产物Ⅰ;将产物Ⅰ与扩链剂混合,在10~120℃下反应3~9小时反应得到产物Ⅱ;环氧树脂B与油酸在90~220℃下发生酯化反应得到产物Ⅲ;将产物Ⅲ与产物Ⅱ混合,在10~120℃下反应3~9小时反应得到产物Ⅳ;向产物Ⅳ中滴加酸类中和剂,再添加交联剂,最后滴水乳化,即得到水性环氧环氧酯树脂。所制得的环氧酯树脂有广泛的应用,可以制备防锈漆,可以喷涂,可以刷涂施工,即使喷涂在钢铁表面也不会闪锈;当涂料固化成膜后树脂中不含亲水基团,提高了涂膜的耐水和耐腐蚀性。
Description
说明书 发明名称:一种水性环氧酯树脂的制备方法及其应用 技术领域
[0001] 本发明涉及一种水性环氧酯树脂的制备方法及其应用, 属于水性涂料领域。
背景技术
[0002] 为了使环氧树脂实现水性化, 通常通过外加乳化剂或者在环氧树脂中引入羟基 、 羧酸、 磺酸、 胺基等亲水基团, 使环氧树脂实现水性化。 当涂料成膜后这些 亲水基团会残留在涂膜中影响涂膜的耐水性和耐腐性。 因此, 幵发一种涂料成 膜吋能够消除亲水基团的水性树脂, 具有很大的意义。
[0003] 同吋, 环氧树脂中的环氧基较活泼, 室温下就可以与胺类等固化剂发生反应, 因此环氧树脂常做成两个组份。 双组份环氧树脂施工前需要按照比例配比, 给 施工和运输带来不便。
[0004] 另外, 目前国内外适用于金属基材的水性工业涂料领域中, 阴离子型树脂型的 水性涂料应用较为广泛, 而阳离子树脂类型的涂料由于受闪蚀的影响, 其主要 以阴极电泳涂装为主, 此涂装方式中工件作为电泳阴极, 以避免工件的闪蚀, 而以喷涂, 刷涂施工的阳离子树脂类型涂料非常容易出现闪蚀, 影响和限制了 阳离子树脂涂料的推广应用。 目前已经研发出的可以喷涂施工的阳离子树脂类 型涂料, 但因为未能解决在金属表面的闪蚀以及与颜填料的稳定问题, 其应用 仍仅限于塑料等基材上。 例如, 申请公布号为 CN 102504199 A的专利报道的水 性环氧树脂等, 没有涉及金属表面的闪锈问题。
技术问题
[0005] 本发明所要解决的技术问题是提供一种水性环氧酯树脂的制备方法及其应用, 解决了上述亲水基残留影响耐水性、 双组份施工运输不方便和水性阳离子树脂 在金属表面的闪锈的问题。
问题的解决方案
技术解决方案
[0006] 本发明解决上述技术问题的技术方案如下: 一种水性环氧酯树脂的制备方法,
包括以下步骤:
[0007] (1) 环氧树脂 A与油酸在 90〜220°C下发生酯化反应得到产物 I;
[0008] (2) 将产物 I与扩链剂混合, 在 10〜120°C下反应 3〜9小吋反应得到产物 Π;
[0009] (3) 环氧树脂 B与油酸在 90〜220°C下发生酯化反应得到产物 m;
[0010] (4) 将产物 m与产物 Π按照重量比 0.5〜2:1进行混合, 在 10〜120°C下反应 3〜9 小吋反应得到产物 IV;
[0011] (5) 向产物 IV中滴加酸类中和剂, 混合搅拌发生反应, 得到产物 V;
[0012] (6) 向产物 V中添加交联剂, 混合搅拌发生反应, 得到产物 VI;
[0013] (7) 向产物 VI中滴水乳化得到固体含量为 30wt<¾〜70wty 乳液, 即为水性环 氧环氧酯树脂。
[0014] 在上述技术方案的基础上, 本发明还可以做如下改进。
[0015] 进一步, 所述步骤 (1) 中环氧树脂 A其环氧当量在 180〜3000之间。
[0016] 进一步, 所述步骤 (1) 中油酸为亚麻油酸、 豆油酸、 托尔油酸、 脱水蓖麻油 酸、 椰子油酸、 桂酸中的一种或者几种, 其与环氧树脂 A的摩尔比为 0.1〜3:1。
[0017] 进一步, 所述步骤 (2) 中扩链剂为甲苯二异氰酸酯、 二苯甲烷二异氰酸酯、 异佛尔酮、 二异氰酸酯、 六亚甲基二异氰酸酯、 乙二胺、 己二胺、 二乙烯三胺
、 三乙烯四胺、 四乙烯五胺、 聚酰胺、 异佛尔酮胺、 间苯二胺中的一种或几种
, 其与环氧树脂 A的摩尔比为 0.1〜1:1。
[0018] 进一步, 所述步骤 (3) 中环氧树脂 B其环氧当量在 180〜3000之间。
[0019] 进一步, 所述步骤 (3) 中油酸为亚麻油酸、 豆油酸、 托尔油酸、 脱水蓖麻油 酸、 椰子油酸、 桂酸中的一种或者几种, 其与环氧树脂 B的摩尔比为 0.1〜3:1。
[0020] 进一步, 所述步骤 (5) 中酸类中和剂为盐酸、 硫酸、 磷酸、 甲酸、 乙酸、 乳 酸、 酒石酸、 甘氨酸中的一种或几种, 其与产物 Π的摩尔比为 0.1〜3:1。
[0021] 进一步, 所述步骤 (6) 中交联剂为硅烷偶联剂、 甲苯二异氰酸酯、 六亚甲基 二异氰酸酯、 异佛尔酮二异氰酸、 二乙烯三胺、 三乙烯四胺、 聚酰胺、 双酚 A环 氧树脂、 双酚 F环氧树脂中的一种或几种中的一种或几种, 其与产物 V的摩尔比 为 0.1〜3:1。
[0022] 本发明制备的水性环氧酯通过两种方式减少涂膜的亲水性。 一方面本发明制
备的水性环氧酯未使用乳化剂而是通过胺成盐的方法提供亲水性, 在涂料的干 燥过程中随着酸类的挥发, 涂膜亲水性降低。 另一方面在涂料的成膜过程中, 随着水分的挥发, 芯材得到有效释放, 与涂膜中具有亲水的胺类发生化学反应 进一步减少了亲水基团含量。
[0023] 本发明制备的水性环氧酯通过微胶囊原理将性质活泼的环氧基团保护起来, 在 储存过程中很稳定, 当涂料在挥发的过程中, 被保护的芯材得到释放。 本发明 制备的环氧酯树脂能将活泼的环氧基保留下来, 从而使双组份的环氧树脂转化 为了单组份, 给施工和运输带来了便利。
[0024] 水性阳离子环氧酯树脂为了提高亲水性需要通过酸类来中和, 而这些酸会对金 属底才产生闪蚀, 为了解决闪蚀问题, 常需要添加防闪蚀助剂。 本发明通过化 学改性的方法将具有抗抗闪蚀的官能团接枝到了水性环氧酯分子上, 从而有效 的解决了阳离子树脂闪蚀的问题。
[0025] 本发明解决上述技术问题的另一技术方案如下: 一种水性环氧酯树脂的应用, 所述水性环氧酯树脂用于制备阳离子防锈漆。
[0026] 进一步, 取重量份数为 120份的去离子水, 在分散的状态下添加重量份数为 0.5 份的分散剂、 0.2份的润湿剂和 0.1份的消泡剂, 然后添加重量份数为 120份的钛 白粉、 40份的高岭土、 80份的硫酸钡、 60份的磷酸锌和 30份的三聚磷酸铝, 添 加完毕后高速分散 20分钟, 然后添加玻璃珠研磨至细度小于 30μηι, 得到色浆; 取得到的色浆 450重量份, 按颜基比 (色漆配方中,颜料与基料的质量比) 1.5: 1, 添加固体含量为 40wt%的水性环氧酯树脂 550重量份, 再添加增稠剂 0.3重量份, 最后加入去离子水调匀, 得到阳离子防锈漆。
发明的有益效果
有益效果
[0027] 本发明制备出的环氧酯树脂有广泛的应用, 可以制备防锈漆, 可以喷涂, 可以 刷涂施工, 即使喷涂在钢铁表面也不会闪锈; 当涂料固化成膜后树脂中不含亲 水基团, 提高了涂膜的耐水和耐腐蚀性。
实施该发明的最佳实施例
本发明的最佳实施方式
[0028] 以下对本发明的原理和特征进行描述, 所举实例只用于解释本发明, 并非用于 限定本发明的范围。
[0029] 实施例 1
[0030] (1) 称取 100g环氧树脂 A和 50g椰子油酸添加到三口瓶中, 升温至 170〜180°C
, 保温 5小吋, 得到产物 I;
[0031] (2) 降温至 60°C, 向产物 I中加入 18g异佛尔酮胺, 保温 3小吋, 得到产物 Π;
[0032] (3) 称取 300g环氧树脂 B和 910g椰子油酸放入三口瓶中, 升温至 110〜120°C, 保温 3小吋, 得到产物 m;
[0033] (4) 将产物 m与产物 Π按照重量比 0.5: 1进行混合, 在 10〜120°C下反应 3〜9 小吋反应得到产物 IV;
[0034] (5) 向产物 IV中 15g甲酸, 混合搅拌 20min发生反应, 得到产物 V;
[0035] (6) 向产物 V中添加 20g硅烷偶联剂, 混合搅拌均匀发生反应, 得到产物 VI; [0036] (7) 向产物 VI中滴水乳化得到固体含量为 40^%的环氧酯乳液, 即为水性环 氧环氧酯树脂。
[0037] 实施例 2
[0038] (1) 称取 100g环氧树脂 A和 50g大豆油酸添加到三口瓶中, 升温至 170〜180°C
, 保温 5小吋, 得到产物 I;
[0039] (2) 降温至 60°C, 向产物 I中加入 16g甲苯二异氰酸酯, 保温 3小吋, 得到产物
Π;
[0040] (3) 称取 300g环氧树脂 B和 910g大豆油酸放入三口瓶中, 升温至 110〜120。C, 保温 3小吋, 得到产物 m;
[0041] (4) 将产物 m与产物 Π按照重量比 2: 1进行混合, 在 10〜120°C下反应 3〜9小 吋反应得到产物 IV;
[0042] (5) 向产物 IV中 20g乙酸, 混合搅拌 20min发生反应, 得到产物 V;
[0043] (6) 向产物 V中添加 30g双酚 A环氧树脂, 混合搅拌均匀发生反应, 得到产物
VI;
[0044] (7) 向产物 VI中滴水乳化得到固体含量为 30^%的环氧酯乳液, 即为水性环 氧环氧酯树脂。
[0045] 实施例 3
[0046] (1) 称取 lOOg环氧树脂 A和 50g椰子油酸添加到三口瓶中, 升温至 170〜180°C
, 保温 5小吋, 得到产物 I;
[0047] (2) 降温至 60。C, 向产物 I中加入 18g二乙烯三胺, 保温 3小吋, 得到产物 Π;
[0048] (3) 称取 300g环氧树脂 B和 910g椰子油酸放入三口瓶中, 升温至 110〜120°C, 保温 3小吋, 得到产物 m;
[0049] (4) 将产物 m与产物 Π按照重量比 1 : 1进行混合, 在 10〜120°C下反应 3〜9小 吋反应得到产物 IV;
[0050] (5) 向产物 IV中 30g酒石酸, 混合搅拌 20min发生反应, 得到产物 V;
[0051] (6) 向产物 V中添力 B25g二乙烯三胺, 混合搅拌均匀发生反应, 得到产物 VI; [0052] (7) 向产物 VI中滴水乳化得到固体含量为 70^%的环氧酯乳液, 即为水性环 氧环氧酯树脂。
[0053] 将上述制备出的水性环氧环氧酯树脂应用于阳离子防锈漆, 具体步骤为: 取 12 0kg的去离子水, 在分散的状态下添加 0.5kg的分散剂、 0.2kg的润湿剂和 0.1kg的 消泡剂, 然后添 imi20kg的钛白粉、 40kg的高岭土、 80kg的硫酸钡、 60kg的磷酸 锌和 30kg的三聚磷酸铝, 添加完毕后高速分散 20分钟, 然后添加玻璃珠研磨至 细度小于 30μηι, 得到色浆; 取得到的色浆 450kg, 按颜基比 1.5:1, 添加固体含量 为 40wt%的水性环氧酯树脂 550kg, 再添加增稠剂 0.3 kg, 最后加入去离子水调匀 , 得到阳离子防锈漆。 将得到的阳离子防锈漆喷涂在钢铁表面, 通过检测发现 没有出现闪锈的现象, 其产生的涂膜耐水和耐腐蚀性良好, 可长吋间使用。
[0054] 以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的精神 和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
Claims
(1) 环氧树脂 A与油酸在 90〜220°C下发生酯化反应得到产物 I;
(2) 将产物 I与扩链剂混合, 在 10〜120°C下反应 3〜9小吋反应得 到产物 Π;
(3) 环氧树脂 B与油酸在 90〜220°C下发生酯化反应得到产物 m;
(4) 将产物 m与产物 Π按照重量比 0.5〜2:1进行混合, 在 10〜120 °C下反应 3〜9小吋反应得到产物 IV;
(5) 向产物 IV中滴加酸类中和剂, 混合搅拌发生反应, 得到产物 V;
(6) 向产物 V中添加交联剂, 混合搅拌发生反应, 得到产物 VI;
(7) 向产物 VI中滴水乳化得到固体含量为 30wt<¾〜70wt<¾的乳液 , 即为水性环氧环氧酯树脂。
根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所 述步骤 (1) 中环氧树脂 A其环氧当量在 180〜3000之间。
根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所 述步骤 (1) 中油酸为亚麻油酸、 豆油酸、 托尔油酸、 脱水蓖麻油 酸、 椰子油酸、 桂酸中的一种或者几种, 其与环氧树脂 A的摩尔比 为 0.1〜3:1。
根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所 述步骤 (2) 中扩链剂为甲苯二异氰酸酯、 二苯甲烷二异氰酸酯、 异佛尔酮、 二异氰酸酯、 六亚甲基二异氰酸酯、 乙二胺、 己二胺 、 二乙烯三胺、 三乙烯四胺、 四乙烯五胺、 聚酰胺、 异佛尔酮胺 、 间苯二胺中的一种或几种, 其与环氧树脂 A的摩尔比为 0.1〜1:1 根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所 述步骤 (3) 中环氧树脂 B其环氧当量在 180〜3000之间。
根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所
述步骤 (3) 中油酸为亚麻油酸、 豆油酸、 托尔油酸、 脱水蓖麻油 酸、 椰子油酸、 桂酸中的一种或者几种, 其与环氧树脂 B的摩尔比 为 0.1〜3:1。
[权利要求 7] 根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所 述步骤 (5) 中酸类中和剂为盐酸、 硫酸、 磷酸、 甲酸、 乙酸、 乳 酸、 酒石酸、 甘氨酸中的一种或几种, 其与产物 Π的摩尔比为 0.1 〜3:1。
[权利要求 8] 根据权利要求 1所述水性环氧酯树脂的制备方法, 其特征在于, 所 述步骤 (6) 中交联剂为硅烷偶联剂、 甲苯二异氰酸酯、 六亚甲基 二异氰酸酯、 异佛尔酮二异氰酸、 二乙烯三胺、 三乙烯四胺、 聚 酰胺、 双酚 A环氧树脂、 双酚 F环氧树脂中的一种或几种中的一种 或几种, 其与产物 V的摩尔比为 0.1〜3:1。
[权利要求 9] 一种水性环氧酯树脂的应用, 其特征在于, 所述水性环氧酯树脂 用于制备阳离子防锈漆。
[权利要求 10] 根据权利要求 9所述水性环氧酯树脂的应用, 其特征在于, 所述制 备阳离子防锈漆的具体步骤为:
(1) 取重量份数为 120份的去离子水, 在分散的状态下添加重量 份数为 0.5份的分散剂、 0.2份的润湿剂和 0.1份的消泡剂, 然后添加 重量份数为 120份的钛白粉、 40份的高岭土、 80份的硫酸钡、 60份 的磷酸锌和 30份的三聚磷酸铝, 添加完毕后高速分散 20分钟, 然 后添加玻璃珠研磨至细度小于 30μηι, 得到色浆;
(2) 取步骤 (1) 得到的色浆 450重量份, 按颜基比 1.5:1, 添加固 体含量为 40wt%的水性环氧酯树脂 550重量份, 再添加增稠剂 0.3重 量份, 最后加入去离子水调匀, 得到阳离子防锈漆。
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