CN101575479A - Mono-component aqueous metal baking paint and preparation method thereof - Google Patents
Mono-component aqueous metal baking paint and preparation method thereof Download PDFInfo
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- CN101575479A CN101575479A CNA2009100399241A CN200910039924A CN101575479A CN 101575479 A CN101575479 A CN 101575479A CN A2009100399241 A CNA2009100399241 A CN A2009100399241A CN 200910039924 A CN200910039924 A CN 200910039924A CN 101575479 A CN101575479 A CN 101575479A
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- 239000003973 paint Substances 0.000 title claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 239000002270 dispersing agent Substances 0.000 claims abstract description 50
- 238000009736 wetting Methods 0.000 claims abstract description 43
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229920001225 polyester resin Polymers 0.000 claims abstract description 35
- 239000004645 polyester resin Substances 0.000 claims abstract description 35
- 150000001412 amines Chemical class 0.000 claims abstract description 29
- 239000008399 tap water Substances 0.000 claims abstract description 25
- 235000020679 tap water Nutrition 0.000 claims abstract description 25
- 229920003180 amino resin Polymers 0.000 claims abstract description 21
- 239000002562 thickening agent Substances 0.000 claims abstract description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 37
- 230000003750 conditioning effect Effects 0.000 claims description 28
- 239000013530 defoamer Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 19
- 239000000049 pigment Substances 0.000 claims description 19
- 230000008719 thickening Effects 0.000 claims description 19
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 18
- 238000013019 agitation Methods 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000001034 iron oxide pigment Substances 0.000 claims description 13
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 12
- 239000000080 wetting agent Substances 0.000 claims description 11
- 239000012463 white pigment Substances 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
- 239000012467 final product Substances 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 125000000129 anionic group Chemical group 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- -1 polyoxyethylene Polymers 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229960004418 trolamine Drugs 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229940086542 triethylamine Drugs 0.000 claims description 3
- LJCJRRKKAKAKRV-UHFFFAOYSA-N (2-amino-2-methylpropyl) 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(N)COC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 LJCJRRKKAKAKRV-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical group OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N n-propyl alcohol Natural products CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 17
- 239000011248 coating agent Substances 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000002904 solvent Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002932 luster Substances 0.000 abstract description 2
- 239000002966 varnish Substances 0.000 abstract description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000006184 cosolvent Substances 0.000 abstract 1
- 238000005034 decoration Methods 0.000 abstract 1
- 239000003607 modifier Substances 0.000 abstract 1
- 230000037452 priming Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 28
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 8
- 239000012972 dimethylethanolamine Substances 0.000 description 8
- 101100412856 Mus musculus Rhod gene Proteins 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229960002887 deanol Drugs 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
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- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The invention discloses a mono-component aqueous metal baking paint and a preparation method thereof. The mono-component aqueous metal baking paint consists of the following components by weight: 40 to 57 percent of tap water, 28 to 34 percent of aqueous acrylic modified polyester resin, 7 to 8.5 percent of amino resin, 1.12 to 1.36 percent of amine modifier, 0.1 to 0.3 percent of wetting dispersing agent A, 0.1 to 0.3 percent of wetting dispersing agent B, 0.01 to 0.1 percent of defoaming agent, 0.5 to 1.2 percent of thickening agent, and 0.2 to 0.6 percent of levelling agent. The mono-component aqueous metal baking paint uses water as a solvent without adding an alcohol/ether cosolvent so that environmental protection is excellent; because of mono-component, the construction is simple and convenient, and the performance is stable; and a paint film is plumpy, the luster is high, the mechanical property is excellent, and the adhesive force is good. The mono-component aqueous metal baking paint is applicable to metal surface corrosion protection and decoration, and can be used as a finishing paint, a priming paint or a coating varnish; and when used for bottom surface integral coating, the mono-component aqueous metal baking paint still has excellent surface effect and protective action.
Description
Technical field
The present invention relates to technical field of coatings, be specially a kind of mono-component aqueous metal baking paint and preparation method thereof.
Background technology
At present, baking vanish is widely used in the external coating of truck, car, bike, sewing machine, refrigerator and washing machine etc. mainly based on the solvent-borne type amino-stoving varnish, ornamental requirement height, the paint film light, plentiful, dryness is quick.Solvent-borne type baking vanish gloss height, the snappiness of patent CN 1485386A preparation are good, and the baking-curing time is short, but solvent reaches 40%, and wherein solvent xylene, butyl glycol ether all have bigger toxic action to human body.Along with the raising of environmental requirement, increasing research concentrates in the exploitation of water-based stoving paint.The amino baked paint of existing water-based mostly with water-borne acrylic resin or acrylic resin modified be main film forming substance, in the preparation process of coating, more or less all to add certain solubility promoter, as butyl glycol ether, propylene glycol butyl ether etc., wherein butyl glycol ether is to the reproductive system toxic side effect.Chinese invention patent CN 1445318A discloses a kind of water-soluble metal baked paint, by membrane-forming agent, solidifying agent, solubility promoter, defoamer and solvent composition, membrane-forming agent is the organosilicon modified crylic acid resin of solid content 60%, solidifying agent is a methyl-etherified trimeric cyanamide resin, solubility promoter is the propylene glycol series products, defoamer is composite dose of silicone oil, alcohol and a fat, and solvent is a water.Its prescription is a main film forming substance with the organosilicon modified crylic acid resin, the hardness of coating, pliable and tough, sticking power good, high temperature resistant, salt spray resistance, acid resistance are good, but the addition of solubility promoter is 5-15%, is unfavorable for the reduction of organic volatile content.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art; provide a kind of easy to use; help environment protection; fullness ratio is good, gloss is high; the mechanical property excellence; water-tolerant, and moderate be easy to the environment protection type single-component aqueous metal baking paint that the user accepts, and the preparation method of this mono-component aqueous metal baking paint is provided.
Purpose of the present invention is achieved through the following technical solutions:
A kind of mono-component aqueous metal baking paint, by weight percentage, its prescription is made of following component: tap water 40-57%, water-borne acrylic acid modified polyester resin 28-34%, aminoresin 7-8.5%, amine conditioning agent 1.12-1.36%, wetting dispersing agent A0.1-0.3%, wetting dispersing agent B0.1-0.3%, defoamer 0.01-0.1%, thickening material 0.5-1.2% and flow agent 0.2-0.6%;
Described water-borne acrylic acid modified polyester resin is a water-dilutable acrylic acid modified saturated polyester resin; Described aminoresin is the methyl-etherified terpolycyantoamino-formaldehyde resin; Described wetting dispersing agent A is anionic or non-ionic wetting agent; Described anionic wetting agent is a sulfosuccinate, and described non-ionic wetting agent is an alkylphenol polyoxyethylene; Described wetting dispersing agent B is a high polymer dispersant; Described high polymer dispersant is poly-to be acrylate or polycarboxylate; Described amine conditioning agent is N, one or more in N-dimethylethanolamine, trolamine, triethylamine and the 2-amino-2-methyl propyl alcohol; Described flow agent is organic silicon modified by polyether, polyester modification organosilicon or reactive siloxane; Described defoamer is a polysiloxane polyether copolymer.
For further realizing goal of the invention, described prescription also comprises white pigment, and white pigment accounts for the 0-21% of prescription gross weight.Described white pigment is rutile-type or anatase thpe white powder.
Described prescription also comprises iron oxide pigment, and iron oxide pigment accounts for the 0-6% of prescription gross weight.Described iron oxide pigment is one or more combinations of red iron oxide, iron oxide yellow, iron oxide black, iron oxide green and iron oxide brown.
Described thickening material is alkali swelling acrylic thickener or association type polyurethane thickener.
A kind of method for preparing mono-component aqueous metal baking paint constitutes weight percentages of components according to described mono-component aqueous metal baking paint and takes by weighing each component respectively, and prepares with processing condition as follows:
(1) under 400-600r/min rotating speed agitation condition, by the prescription gross weight, the tap water, amine conditioning agent 0.72-0.8%, wetting dispersing agent A0.1-0.3%, wetting dispersing agent B0.1-0.3%, water-borne acrylic acid modified polyester resin 18-20% and the defoamer 0-0.04% that add 30-40% successively stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
(2) under 400-600r/min rotating speed agitation condition, by the prescription gross weight, in step (1) gained pigment slurry, add remaining amine conditioning agent 0.4-0.56%, water-borne acrylic acid modified polyester resin 10-14%, tap water 10-17% successively, aminoresin 7-8.5%, defoamer 0.001-0.06%, flow agent 0.2-0.6%, thickening material 0.5-1.2%, stirring gets final product, and makes mono-component aqueous box and belongs to baked paint.
Described step (1) also comprises adding white pigment and/or iron oxide pigment, and by the prescription gross weight, the white pigment consumption is 0-21%, and the iron oxide pigment consumption is 0-6%.
Main film forming substance is a water-borne acrylic acid modified polyester resin in the present invention's prescription, water-borne acrylic acid modified polyester resin is a kind of water-dilutable acrylic acid modified saturated polyester resin, has favorable mechanical stability, with having splendid hardness and snappiness after amino resin crosslinked, the gloss height, fullness ratio and sticking power are good, water-fast, oil resistant, alkaline-resisting, as the sharp a kind of water dilution type acrylic acid modified saturated polyester resin (HD-MB019) of using the production of heavy chemicals company limited of Beijing Jin Hui, the coating gloss height of making, fullness ratio is good, hardness and snappiness are splendid, water-fast, oil resistant, the alkaline resistance properties excellence, and film adhesive is good; The water soluble acrylic acid vibrin (1000H) that Canada Eton coating company limited produces, the coating light of making is plentiful, anti-xanthochromia, ageing-resistant, clarity good, sticking power, snappiness excellence.
Aminoresin is low methyl-etherified terpolycyantoamino-formaldehyde resin, contains a certain proportion of imido grpup, and reactive behavior is higher, and storing temperature is lower, and filming of making after crosslinked with hydroxy-containing resin has high rigidity, high gloss, good weatherability.Low methyl-etherified terpolycyantoamino-formaldehyde resin (072) as BASF AG's production; The low methyl-etherified terpolycyantoamino-formaldehyde resin (717) that Britain Ineos company produces.
White pigment is rutile-type or anatase thpe white powder, the CR-828 of rutile-type such as Ke Meiji company, CR-826, the R-706 of du pont company, the TR-92 of Malaysian Hensel Man, and the products such as SR-237 produced of Shandong Dongjia Group Co., Ltd.; The BA-0101 that anatase titanium dioxide such as Guangxi Xing Meixiang titanium dioxide company limited produce.Whiteness, brightness, good luster, opacifying power, good dispersity are used in the color that can regulate coating in the aqueous metal baking paint.
Iron oxide pigment comprises red iron oxide, iron oxide yellow, iron oxide black, iron oxide green, iron oxide brown.Iron oxide pigment as the production of the global iron oxide pigment in Shanghai company limited; Red iron oxide, iron oxide black that Guangzhou brilliant color painting company limited produces, product has advantages such as purity height, strong coloring force.Be used in the color that to regulate coating in the aqueous metal baking paint.
The amine conditioning agent is one or more in dimethylethanolamine, trolamine, triethylamine, the ammoniacal liquor.The dimethylethanolamine of producing as BASF Aktiengesellschaft is an organic amine, and rate of volatilization is low, and is good with the long-term shelf-stability of mill base after its neutralization, be difficult for causing the mill base layering; The trolamine boiling point height of producing as Dow Chemical, soluble in water can be used for metal cutting, the cooling, antirust of metal processing, also can be used for tensio-active agent, pH value conditioning agent and soda acid gas absorbent etc.; The ammoniacal liquor boiling point of producing as the pure white chemical industry in Guangzhou company limited is low, has special intense stimulus stink, and low price, baking back noresidue do not influence other performance of paint film.
Wetting dispersing agent is one or more in anionic wetting agent, non-ionic wetting agent, the high polymer dispersant.Gu wetting agent can reduce liquid/between interfacial tension, strengthen the lyophily of pigment, improve mechanical lapping efficiency.Dispersant adsorption constitutes charge effect or space steric effect on the surface of pigment, make dispersion be in steady state.The Hydropalat 875 of anionic wetting agent such as Shenzhen Hai Chuan chemical industry company limited; The X-405 of non-ionic wetting agent such as Dow Chemical, the PE-100 of Shenzhen Hai Chuan chemical industry company limited, Hydropalat 436; HDN, the A40 of SN-5027, the SN-5034 of the Orotan 731A of high polymer dispersant such as U.S. Rhom and Hass, Shenzhen Hai Chuan chemical industry company limited, SN-5040, vapour crust, the 104A of air etc.
Defoamer is a polysiloxane polyether copolymer.A kind of defoamer must have tangible uncompatibility with coating, and reduces side effects such as flake, shrinkage cavity, more can not influence coating gloss for hard-gloss paint.As Dego company 805,825,810,8020,8030, BYK-019, the BYK-020 of BYK company, China Resources, Suzhou, Anhui SXP-107 of chemical industry company limited etc.
Flow agent is silicone based flow agent, comprises organic silicon modified by polyether, polyester modification organosilicon, reactive siloxane etc.Add suitable flow agent and can obviously improve film forming performance, eliminate shrinkage cavity and flake phenomenon, improve the ground wettability, be beneficial to air and solvent and discharge, help dispersing of pigments.As EFKA company 3580, Changsha Reeb chemical industry company limited 203, the BD-3053 of Hangzhou Bao Erde etc.
Other auxiliary agents such as thickening material are auxiliary agent commonly used in the water-borne coatings production.
Mono-component aqueous metal baking paint mixing of the present invention and grinding plant are the common equipments in the coating preparation process, comprise high speed dispersor, sand mill, ball mill and ball mill etc.
Mono-component aqueous metal baking paint construction technology of the present invention can be taked spraying, dip-coating, and gauge control is at the 20-30 micron.
The present invention compared with prior art has following advantage:
1) product of gained of the present invention belongs to a kind of environment protection type single-component aqueous metal baking paint, do not add any solubility promoter fully, adopting water-dilutable acrylic acid modified saturated polyester resin is film-forming resin, cooperate suitable wetting dispersing agent, flow agent, can obtain plentiful, glossy and film, and film-forming resin hydroxyl value height, acid number are low, adopt certain preparation technology, the wetting dispersing agent consumption is few, can obtain filming of water tolerance excellence.
2) construction of the product of gained of the present invention is simple and convenient, and directly water is as thinner, and directly spraying gets final product in the metallic surface of having handled, and equipment and workpiece to be machined can clean by water.
3) the product storing temperature of gained of the present invention is low, can be dry under 120 ℃, and save energy.
Embodiment
The invention will be further described below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope of embodiment statement.Unless outside specializing among the present invention, the related ratio of embodiment all is weight percentage.
Embodiment 1:
The mono-component aqueous metal baking paint prescription is: tap water 44.65Kg (44.65%), water-borne acrylic acid modified polyester resin (HD-MB019, the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 30.48Kg (30.48%), (Luwipal 072 for aminoresin, BASF Auxiliary Chemicals Co., Ltd.) 7.62Kg (7.62%), Rutile type Titanium Dioxide (CR-826, Ke Meiji chemical company) 11.88Kg (11.88%), red iron oxide (ZH162, Guangzhou brilliant color painting company limited) 2.86Kg (2.86%), amine conditioning agent (DMEA, BASF Auxiliary Chemicals Co., Ltd.) 1.2 (1.2%), wetting dispersing agent A (X-405, Dow Chemical) 0.19Kg (0.19%), wetting dispersing agent B (731A, U.S. Rhom and Hass) 0.19Kg (0.19%), defoamer (810, Dego company) 0.03Kg (0.03%), thickening material (112, vapour Bagong department) 0.5Kg (0.5%), flow agent (3580, EFKA company) 0.4Kg (0.4%)
The preparation method:
1) under 500r/min rotating speed agitation condition, by the prescription gross weight, add 30% tap water, amine conditioning agent 0.72%, wetting dispersing agent A0.19%, wetting dispersing agent B0.19%, water-borne acrylic acid modified polyester resin 18%, defoamer 0.02%, rutile type 11.88% successively, red iron oxide 2.86% stirs 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
2) under 500r/min rotating speed agitation condition, by the prescription gross weight, continue in above-mentioned pigment slurry, to add remaining amine conditioning agent 0.5%, water-borne acrylic acid modified polyester resin 12.48%, tap water 14.65% successively, aminoresin 7.62%, defoamer 0.01%, flow agent 0.4%, thickening material 0.5%, stirring gets final product, and the mono-component aqueous metal baking paint performance that makes is as shown in table 1.
Embodiment 2:
The mono-component aqueous metal baking paint prescription is: tap water 41.27Kg (41.27%), water-borne acrylic acid modified polyester resin (HD-MB019, the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 28Kg (28%), (Luwipal 072 for aminoresin, BASF Auxiliary Chemicals Co., Ltd.) 7.2Kg (7.2%), Rutile type Titanium Dioxide (CR-826, Ke Meiji chemical company) 21Kg (21%), amine conditioning agent (DMEA, BASF Auxiliary Chemicals Co., Ltd.) 1.12 (1.2%), wetting dispersing agent A (X-405, Dow Chemical) 0.2Kg (0.2%), wetting dispersing agent B (731A, U.S. Rhom and Hass) 0.2Kg (0.2%), defoamer (810, Dego company) 0.01Kg (0.01%), thickening material (WT-105A, the modest chemical company limited of moral) 0.8Kg (0.8%), flow agent (3580, EFKA company) 0.2Kg (0.2%)
The preparation method:
1) under 400r/min rotating speed agitation condition, by the prescription gross weight, add 30% tap water, amine conditioning agent 0.72%, wetting dispersing agent A0.2%, wetting dispersing agent B0.2%, water-borne acrylic acid modified polyester resin 18%, defoamer 0.006%, rutile type 21% successively, stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
2) under 600r/min rotating speed agitation condition, by the prescription gross weight, continue in above-mentioned pigment slurry, to add remaining amine conditioning agent 0.4%, water-borne acrylic acid modified polyester resin 10%, tap water 11.27% successively, aminoresin 7.2%, defoamer 0.004%, flow agent 0.2%, thickening material 0.8%, stirring gets final product, and the mono-component aqueous metal baking paint performance that makes is as shown in table 1.
Embodiment 3:
The mono-component aqueous metal baking paint prescription is: tap water 51.4Kg (51.4%), water-borne acrylic acid modified polyester resin (HD-MB019, the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 32Kg (32%), (Luwipal 072 for aminoresin, BASF Auxiliary Chemicals Co., Ltd.) 8Kg (8%), red iron oxide (4110, Beyer Co., Ltd) 2.5Kg (2.5%), iron oxide black (4330, Beyer Co., Ltd) 2.5Kg (2.5%), amine conditioning agent (DMEA, BASF Auxiliary Chemicals Co., Ltd.) 1.36 (1.36%), wetting dispersing agent A (X-405, Dow Chemical) 0.15Kg (0.15%), wetting dispersing agent B (731A, U.S. Rhom and Hass) 0.19Kg (0.19%), defoamer (805, Dego company) 0.1Kg (0.1%), thickening material (112, vapour Bagong department) 1.2Kg (1.2%), flow agent (3580, EFKA company) 0.6Kg (0.6%)
The preparation method:
1) under 600r/min rotating speed agitation condition, by the prescription gross weight, add 30% tap water, amine conditioning agent 0.72%, wetting dispersing agent A0.15%, wetting dispersing agent B0.19%, water-borne acrylic acid modified polyester resin 18%, red iron oxide 2.5%, iron oxide black 2.5% successively, stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
2) under 400r/min rotating speed agitation condition, by the prescription gross weight, continue in above-mentioned pigment slurry, to add remaining amine conditioning agent 0.64%, water-borne acrylic acid modified polyester resin 16%, tap water 21.4% successively, aminoresin 8%, defoamer 0.1%, flow agent 0.6%, thickening material 1.2%, stirring gets final product, and the mono-component aqueous metal baking paint performance that makes is as shown in table 1.
Embodiment 4:
The mono-component aqueous metal baking paint prescription is: tap water 49Kg (49%), water-borne acrylic acid modified polyester resin (HD-MB019, the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 33Kg (33%), (Luwipal 072 for aminoresin, BASF Auxiliary Chemicals Co., Ltd.) 8.5Kg (8.5%), red iron oxide (4110, Beyer Co., Ltd) 3Kg (3%), iron oxide black (4330, Beyer Co., Ltd) 3Kg (3%), amine conditioning agent (DMEA, BASF Auxiliary Chemicals Co., Ltd.) 1.36 (1.36%), wetting dispersing agent A (X-405, Dow Chemical) 0.15Kg (0.15%), wetting dispersing agent B (731A, U.S. Rhom and Hass) 0.19Kg (0.19%), defoamer (805, Dego company) 0.1Kg (0.1%), thickening material (112, vapour Bagong department) 0.8Kg (0.8%), flow agent (3580, EFKA company) 0.6Kg (0.6%)
The preparation method:
1) under 550r/min rotating speed agitation condition, by the prescription gross weight, add 30% tap water, amine conditioning agent 0.72%, wetting dispersing agent A0.15%, wetting dispersing agent B0.19%, water-borne acrylic acid modified polyester resin 18%, red iron oxide 3%, iron oxide black 3% successively, stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
2) under 450r/min rotating speed agitation condition, by the prescription gross weight, continue in above-mentioned pigment slurry, to add remaining amine conditioning agent 0.64%, water-borne acrylic acid modified polyester resin 15%, tap water 19% successively, aminoresin 8.5%, defoamer 0.1%, flow agent 0.8%, thickening material 0.6%, stirring gets final product, and the mono-component aqueous metal baking paint performance that makes is as shown in table 1.
Embodiment 5:
The mono-component aqueous metal baking paint prescription is: tap water 50.26Kg (50.26%), water-borne acrylic acid modified polyester resin (HD-MB019, the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 33Kg (33%), aminoresin (R-717, Ineos company) 8Kg (8%), iron oxide black (4330, Beyer Co., Ltd) 6Kg (6%), amine conditioning agent (DMEA, BASF Auxiliary Chemicals Co., Ltd.) 1.36 (1.36%), wetting dispersing agent A (875, Shenzhen Hai Chuan chemical industry company limited) 0.3Kg (0.3%), wetting dispersing agent B (731A, U.S. Rhom and Hass) 0.3Kg (0.3%), defoamer (810, Dego company) 0.02Kg (0.02%), thickening material (112, vapour Bagong department) 0.8Kg (0.8%), flow agent (3580, EFKA company) 0.6Kg (0.6%)
The preparation method:
1) under 450r/min rotating speed agitation condition, by the prescription gross weight, add 30% tap water, amine conditioning agent 0.72%, wetting dispersing agent A0.3%, wetting dispersing agent B0.3%, defoamer 0.01%, water-borne acrylic acid modified polyester resin 18%, iron oxide black 6% successively, stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
2) under 450r/min rotating speed agitation condition, by the prescription gross weight, continue in above-mentioned pigment slurry, to add remaining amine conditioning agent 0.64%, water-borne acrylic acid modified polyester resin 15%, tap water 20.26% successively, aminoresin 8%, defoamer 0.01%, flow agent 0.6%, thickening material 0.8%, stirring gets final product, and the mono-component aqueous metal baking paint performance that makes is as shown in table 1.
Embodiment 6:
The mono-component aqueous metal baking paint prescription is: tap water 50.26Kg (50.26%), water-borne acrylic acid modified polyester resin (HD-MB019, the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 33Kg (33%), aminoresin (R-717, Ineos company) 8Kg (8%), iron oxide black (4330, Beyer Co., Ltd) 6Kg (6%), amine conditioning agent (DMEA, BASF Auxiliary Chemicals Co., Ltd.) 1.36 (1.36%), wetting dispersing agent A (X-405, Dow Chemical) 0.3Kg (0.3%), wetting dispersing agent B (A40, vapour Bagong department) 0.3Kg (0.3%), defoamer (810, Dego company) 0.02Kg (0.02%), thickening material (112, vapour Bagong department) 0.8Kg (0.8%), flow agent (3580, EFKA company) 0.6Kg (0.6%)
The preparation method:
1) under 500r/min rotating speed agitation condition, by the prescription gross weight, add 30% tap water, amine conditioning agent 0.72%, wetting dispersing agent A0.3%, wetting dispersing agent B0.3%, defoamer 0.01%, water-borne acrylic acid modified polyester resin 18%, iron oxide black 6% successively, stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
2) under 450r/min rotating speed agitation condition, by the prescription gross weight, continue in above-mentioned pigment slurry, to add remaining amine conditioning agent 0.64%, water-borne acrylic acid modified polyester resin 15%, tap water 20.26% successively, aminoresin 8%, defoamer 0.01%, flow agent 0.6%, thickening material 0.8%, stirring gets final product, and the mono-component aqueous metal baking paint performance that makes is as shown in table 1.
The mono-component aqueous metal baking paint performance table that table 1 embodiment 1～6 is disposed
Table 1 is the result show, mono-component aqueous metal baking paint performance of the present invention reaches solvent-borne type alcohol acid amido baking vanish technical requirement, wherein hardness, impact and pliable and tough apparently higher than technical indicator.Mono-component aqueous metal baking paint of the present invention is a solvent with water, and adopting the water soluble acrylic acid vibrin is main film forming substance, and prescription does not add any solubility promoter.Usually, in the water-reducible coatings based on vinylformic acid, must add solubility promoter, levelling property preferably and suitable working viscosity can be arranged and contain admittedly, the film-forming resin of mono-component aqueous metal baking paint of the present invention adopts acrylic acid polyester resin, this resin is the acrylic acid modified resin based on saturated polyester, and under the condition that does not add solubility promoter, construction contains also higher admittedly, but because resin surface can be high, be easy to generate shrinkage cavity, difficult levelling is for overcoming above disadvantage, by to wetting dispersing agent, the choose reasonable of flow agent and use, it is good to have prepared consistency, surfacing, the coating plentiful, that glossiness is high.On preparation technology, adopt to grind and high speed dispersion combines, directly do not use mill base, avoided of the influence of high wetting dispersing agent content to paint film water tolerance and sticking power, prepared that fineness is low, the Color paint of water-tolerant.
Claims (8)
1, a kind of mono-component aqueous metal baking paint, it is characterized in that, by weight percentage, its prescription is made of following component: tap water 40-57%, water-borne acrylic acid modified polyester resin 28-34%, aminoresin 7-8.5%, amine conditioning agent 1.12-1.36%, wetting dispersing agent A0.1-0.3%, wetting dispersing agent B0.1-0.3%, defoamer 0.01-0.1%, thickening material 0.5-1.2% and flow agent 0.2-0.6%;
Described water-borne acrylic acid modified polyester resin is a water-dilutable acrylic acid modified saturated polyester resin; Described aminoresin is the methyl-etherified terpolycyantoamino-formaldehyde resin; Described wetting dispersing agent A is anionic or non-ionic wetting agent; Described anionic wetting agent is a sulfosuccinate, and described non-ionic wetting agent is an alkylphenol polyoxyethylene; Described wetting dispersing agent B is a high polymer dispersant; Described high polymer dispersant is poly-to be acrylate or polycarboxylate; Described amine conditioning agent is N, one or more in N-dimethylethanolamine, trolamine, triethylamine and the 2-amino-2-methyl propyl alcohol; Described flow agent is organic silicon modified by polyether, polyester modification organosilicon or reactive siloxane; Described defoamer is a polysiloxane polyether copolymer.
2, mono-component aqueous metal baking paint according to claim 1 is characterized in that: described prescription also comprises white pigment, and white pigment accounts for the 0-21% of prescription gross weight.
3, mono-component aqueous metal baking paint according to claim 2 is characterized in that: described white pigment is rutile-type or anatase thpe white powder.
4, mono-component aqueous metal baking paint according to claim 1 is characterized in that: described prescription also comprises iron oxide pigment, and iron oxide pigment accounts for the 0-6%. of prescription gross weight
5, mono-component aqueous metal baking paint according to claim 4 is characterized in that: described iron oxide pigment is one or more combinations of red iron oxide, iron oxide yellow, iron oxide black, iron oxide green and iron oxide brown.
6, mono-component aqueous metal baking paint according to claim 1 is characterized in that: described thickening material is alkali swelling acrylic thickener or association type polyurethane thickener.
7, a kind of method for preparing the described mono-component aqueous metal baking paint of claim 1 is characterized in that: constitute weight percentages of components according to described mono-component aqueous metal baking paint and take by weighing each component respectively, and prepare with processing condition as follows:
(1) under 400-600r/min rotating speed agitation condition, by the prescription gross weight, the tap water, amine conditioning agent 0.72-0.8%, wetting dispersing agent A0.1-0.3%, wetting dispersing agent B0.1-0.3%, water-borne acrylic acid modified polyester resin 18-20% and the defoamer 0-0.04% that add 30-40% successively stir 5min, grind 1-2h then at a high speed, arrive below the 20um until fineness, promptly make pigment slurry;
(2) under 400-600r/min rotating speed agitation condition, by the prescription gross weight, in step (1) gained pigment slurry, add remaining amine conditioning agent 0.4-0.56%, water-borne acrylic acid modified polyester resin 10-14%, tap water 10-17% successively, aminoresin 7-8.5%, defoamer 0.001-0.06%, flow agent 0.2-0.6%, thickening material 0.5-1.2%, stirring gets final product, and makes mono-component aqueous metal baking paint.
8, the method for preparing mono-component aqueous metal baking paint according to claim 7, it is characterized in that: described step (1) also comprises adding white pigment and/or iron oxide pigment, by the prescription gross weight, the white pigment consumption is 0-21%, and the iron oxide pigment consumption is 0-6%.
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| CN110157271A (en) * | 2019-06-05 | 2019-08-23 | 立邦涂料（中国）有限公司 | A kind of aqueous polymeric coating composition of automobile |
| CN110157271B (en) * | 2019-06-05 | 2021-04-13 | 立邦涂料（中国）有限公司 | Water-based polymer coating composition for automobile |
| CN110894394A (en) * | 2019-11-12 | 2020-03-20 | 无锡华东锌盾科技有限公司 | Water-based polyester amino baking varnish coating and preparation method and application thereof |
| CN111073475A (en) * | 2019-12-27 | 2020-04-28 | 武汉材料保护研究所有限公司 | Water-based high-temperature-resistant polyester amino baking coating, preparation method and use method |
| CN113817368A (en) * | 2021-07-16 | 2021-12-21 | 山东嘉美泰新材料有限公司 | High-performance water-based metal base paint for automobiles |
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