CN103555115B - A kind of galvanized sheet coating and preparation method thereof - Google Patents
A kind of galvanized sheet coating and preparation method thereof Download PDFInfo
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- CN103555115B CN103555115B CN201310542228.9A CN201310542228A CN103555115B CN 103555115 B CN103555115 B CN 103555115B CN 201310542228 A CN201310542228 A CN 201310542228A CN 103555115 B CN103555115 B CN 103555115B
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Abstract
The invention provides a kind of galvanized sheet coating, is this automobile finish by LH-60 resin 45-55, isopropylcarbinol etherified amino resins 14-19, titanium dioxide R-215? 20-25, carbon black 0.5-1, anti-settling agent 0.1-0.5, wetting dispersing agent 0.1-0.3, flow agent 0.1-0.3, silane coupling agent si69? 1-2, butanols 1-3, modified filler 9-11, mixed diluent 8-14, be mixed with and form.Paint film oil-proofness of the present invention, excellent water resistance, strong adhesion, environmental protection, belongs to environmentally friendly product, is particularly suitable for galvanized sheet protection.
Description
Technical field:
The present invention relates to paint field, be specifically related to a kind of galvanized sheet coating and preparation method thereof.
Background technology:
According to user's requirement, need pin spray paint on galvanized sheet, because galvanized sheet is difficult to attachment, therefore develop galvanized sheet series paint.Adopted zinc-chrome yellow epoxy primer, zinc-chrome yellow contains heavy metal in the past, and construction needs priming paint, finish paint twice, and not only lose time but also waste energy, decorate properties is not high yet, can not adapt to new technical requirements.By the acrylic resin of epoxy resin modification, there is multiple functional radical, many reflecting points, to the good attachment of ground, lacquering adopts auxiliary agent and isopropylcarbinol etherify melamine resin 130 degree of bakings 0.5 hour, its multiple functional radical, cross-linking density after many reflecting points and special assistant and amino film forming is improved, by dissolving each other in film, be wound around to wait to act on and make to be formed between paint film and galvanized sheet chemical binding force and fundamentally solve attachment issue to galvanized sheet, film performance had both possessed amino hard wear resistant, oil-proofness possesses again vinylformic acid and protects light, tint retention, and this product is not containing heavy metal, bottom surface is unified, first drying film forming, save energy.
Summary of the invention:
The invention provides a kind of galvanized sheet coating and preparation method thereof.Coating bottom surface of the present invention unification, 130 degree of bakings 0.5 hour, a crosslinking reaction film forming, select silane coupling agent si69, by crosslinked in film, dissolve each other, winding etc. acts on and makes to be formed between paint film and galvanized sheet chemical binding force, thus on galvanized sheet, have excellent sticking power.
The technical solution used in the present invention is as follows for achieving the above object:
A kind of galvanized sheet coating, it is characterized in that, it is made up of the component of following weight part:
LH-60 resin 45-55, isopropylcarbinol etherified amino resins 14-19, titanium dioxide R-21520-25, carbon black 0.5-1, anti-settling agent 0.1-0.5, wetting dispersing agent 0.1-0.3, flow agent 0.1-0.3, silane coupling agent si691-2, butanols 1-3, modified filler 9-11, mixed diluent 8-14
Described mixed solvent is mixed by the volume ratio of 3: 1: 1 by dimethylbenzene, ethylene glycol ether acetate, secondary butyl ester three;
The preparation method of described LH-60 resin is:
(1) following component is taken by weight:
Dimethylbenzene 32-38,2-Butoxyethyl acetate 8-12, methyl methacrylate 10-15, senecioate-hydroxypropyl acrylate 10-15, Isooctyl acrylate monomer 10-15, vinylformic acid 5-10, vinylbenzene 8-12, benzoyl peroxide 1-1.5, epoxy resin E424-9;
(2) monomer of formula ratio and the initiator of 80% are made into compound A, it is the initiator solution B of 20-30% that remaining initiator is dissolved in obtained concentration in mixed solvent, for subsequent use;
(3) epoxy resin, the dimethylbenzene of 90% formula ratio and 2-Butoxyethyl acetate is added in a kettle., be warming up to 90 DEG C, maintenance be stirred to epoxy resin entirely molten after, start to drip compound A prepared by step (1), drip off compound in 2-2.6h, after 95 ± 2 DEG C of insulation 2h, be warming up to 105 ± 2 DEG C of initiator solution B adding step (1) and prepare, drip off in 1h, insulation 1-2 hour;
(4) when transformation efficiency reaches more than 98%, cooling, filtration, discharging obtain LH-60 resin;
Described modified filler is prepared by following method and obtains: a. takes off the raw material of row weight part: kaolin 100-150, calcium carbonate 120-130, zeolite 10-12, nano-sized carbon 1-2, tungstic oxide 1-2, lanthanum trioxide 2-3, Peppermint essential oil 2-3, Sodium peroxoborate 1-2, aluminum oxide 2-3, precipitator method barium sulfate 30-34, tea-polyphenol 3-4, triethyl citrate 1-2, titanate coupling agent TMC-TTS4-6, jade powder 1-2;
B, kaolin, calcium carbonate, zeolite are calcined 4-5h at 450-480 DEG C, be cooled to room temperature, after taking-up, add in the sodium hydroxide solution of 3-4% and grind 1-2 hour, then, add the hydrochloric acid soln of 12-15%, adjustment pH value is 4-5, ageing 10-15 hour, and repeated hydrogenation sodium hydroxide solution regulates lapping liquid pH to be neutral, filter, dry and obtain filler powder;
C, above-mentioned gained powder to be mixed with other remaining component, and even with the high speed dispersion of 8000-10000 rev/min, to obtain final product.
The production method of described galvanized sheet coating, is characterized in that, comprise the following steps:
(1) by LH-60 resin, wetting dispersing agent, pigment, filler, with 2000-2600r/min speed, high speed dispersion 1-1.5 hour; Enter sand mill circular grinding to fineness control≤20u, outlet mass temperatures≤60 DEG C;
(2) material that mesh-of-grind is qualified adds tune and converts in still, and with color paste toning to after meeting the requirements, adds isopropylcarbinol etherified amino resins, 1% silicone oil xylene solution, and rest materials, even with the moderate-speed mixer of 100-200r/min;
(3) after stirring evenly, with mixed solvent adjustment viscosity to 60-80(S)/be coated with-4, filter with 200 order vibratory screening apparatuss, pack.
Advantage of the present invention:
1, the present invention selects methyl methacrylate, styrene monomer as hard monomer, select Isooctyl acrylate monomer as soft monomer, snappiness is provided, promotes film forming, provide senecioate-hydroxypropyl acrylate to provide cross-linking set, adjustment cross-linking density, improve sticking power, add few Acrylic Acid Monomer, introduce carboxyl, make it to react with epoxy group, improve resin to face, filler wetting and the attachment to base material.
2, coating high bake of the present invention nondiscoloration, film has excellent weathering resistance; Adding of modified filler, improve the intermiscibility of formula materials, improve coating stability in storage.
3, the present invention adopts acrylic resin modified, aminoresin, at 130 DEG C, crosslinking reactions occur, in film by dissolving each other, the effect such as winding makes to be formed between paint film and galvanized sheet chemical binding force, thus has excellent sticking power.
4, bottom surface of the present invention unification, one-pass film-forming, save energy.
Embodiment
One, embodiment 1 synthesizes LH-60 resin
(2) technique
1., the monomer of formula ratio and the initiator of 80% are made into compound for subsequent use;
2. epoxy resin, the dimethylbenzene of 90% formula ratio and butyl ester, is added in a kettle., be warming up to 90 DEG C, maintenance be stirred to epoxy resin entirely molten after, start to drip the compound of preparation 1., drip off compound in 2-2.6h, after 95 ± 2 DEG C of insulation 2h, be warming up to the mixing solutions (initiator is dissolved in mixed solvent) that 105 ± 2 DEG C are added remaining initiator, drip off in 1h, maintain more than 1 hour;
3., survey transformation efficiency when reaching more than 98%, cooling, filter, discharging obtains resin.
(3) LH-60 resin leading indicator:
2, lacquering
(1) formula composition
Mixed solvent is mixed by the volume ratio of 3: 1: 1 by dimethylbenzene, ethylene glycol ether acetate, secondary butyl ester three;
(2) technique
1. by LH-60 resin, wetting dispersing agent, face, filler high speed dispersion (2000-2600r/min) after 1 hour;
2. enter sand mill circular grinding, outlet mass temperatures≤60 DEG C, lacquering fineness controls≤20;
3. the material that mesh-of-grind is qualified adds tune and converts in still, and with color paste toning to after meeting the requirements, add isopropylcarbinol etherified amino resins, 1% silicone oil dimethylbenzene liquid and rest materials, middling speed (100-200r/min) stirs evenly;
4. after stirring evenly, with mixed solvent adjustment viscosity to 60-80(S)/be coated with-4, filter with 200 order vibratory screening apparatuss, pack.
Wherein, modified filler is prepared by following method and obtains: a. takes off the raw material of row weight part: kaolin 130, calcium carbonate 125, zeolite 11, nano-sized carbon 1, tungstic oxide 2, lanthanum trioxide 2.5, Peppermint essential oil 3, Sodium peroxoborate 2, aluminum oxide 2 precipitator method barium sulfate 33, tea-polyphenol 3, triethyl citrate 2, titanate coupling agent TMC-TTS5, jade powder 1.5;
B, kaolin, calcium carbonate, zeolite are calcined 4-5h at 450-480 DEG C, be cooled to room temperature, after taking-up, add in the sodium hydroxide solution of 3-4% and grind 1-2 hour, then, add the hydrochloric acid soln of 12-15%, adjustment pH value is 4-5, ageing 10-15 hour, and repeated hydrogenation sodium hydroxide solution regulates lapping liquid pH to be neutral, filter, dry and obtain filler powder;
C, above-mentioned gained powder to be mixed with other remaining component, and even with the high speed dispersion of 8000-10000 rev/min, to obtain final product.
(3) lacquering measured result
Claims (2)
1. a galvanized sheet coating, it is characterized in that, it is made up of the component of following weight part: LH-60 resin 45-55, isopropylcarbinol etherified amino resins 14-19, titanium dioxide R-21520-25, carbon black 0.5-1, anti-settling agent 0.1-0.5, wetting dispersing agent 0.1-0.3, flow agent 0.1-0.3, silane coupling agent si691-2, butanols 1-3, modified filler 9-11, mixed solvent 8-14, and described mixed solvent is mixed by the volume ratio of 3: 1: 1 by dimethylbenzene, ethylene glycol ether acetate, secondary butyl ester three; The preparation method of described LH-60 resin is: (1) takes following component by weight: dimethylbenzene 32-38,2-Butoxyethyl acetate 8-12, methyl methacrylate 10-15, senecioate-hydroxypropyl acrylate 10-15, Isooctyl acrylate monomer 10-15, vinylformic acid 5-10, vinylbenzene 8-12, benzoyl peroxide 1-1.5, epoxy resin E424-9; (2) monomer of formula ratio and the initiator of 80% are made into compound A, it is the initiator solution B of 20-30% that remaining initiator is dissolved in obtained concentration in mixed solvent, for subsequent use; (3) epoxy resin, the dimethylbenzene of 90% formula ratio and 2-Butoxyethyl acetate is added in a kettle., be warming up to 90 DEG C, maintenance be stirred to epoxy resin entirely molten after, start to drip compound A prepared by step (2), drip off compound in 2-2.6h, after 95 ± 2 DEG C of insulation 2h, be warming up to 105 ± 2 DEG C of initiator solution B adding step (2) and prepare, drip off in 1h, insulation 1-2 hour; (4) when transformation efficiency reaches more than 98%, cooling, filtration, discharging obtain LH-60 resin; Described modified filler is prepared by following method and obtains: a. takes off the raw material of row weight part: kaolin 100-150, calcium carbonate 120-130, zeolite 10-12, nano-sized carbon 1-2, tungstic oxide 1-2, lanthanum trioxide 2-3, Peppermint essential oil 2-3, Sodium peroxoborate 1-2, aluminum oxide 2-3, precipitator method barium sulfate 30-34, tea-polyphenol 3-4, triethyl citrate 1-2, titanate coupling agent TMC-TTS4-6, jade powder 1-2; B, kaolin, calcium carbonate, zeolite are calcined 4-5h at 450-480 DEG C, be cooled to room temperature, after taking-up, add in the sodium hydroxide solution of 3-4% and grind 1-2 hour, then, add the hydrochloric acid soln of 12-15%, adjust ph is 4-5, ageing 10-15 hour, and repeated hydrogenation sodium hydroxide solution regulates lapping liquid pH to be neutral, filter, dry and obtain filler powder; C, above-mentioned gained powder to be mixed with other remaining component, and even with the high speed dispersion of 8000-10000 rev/min, to obtain final product.
2. the production method of galvanized sheet coating according to claim 1, is characterized in that, comprise the following steps: (1) by LH-60 resin, wetting dispersing agent, pigment, filler, with 2000-2600r/min speed, high speed dispersion 1-1.5 hour; Enter sand mill circular grinding and control≤20 μm to fineness, outlet mass temperatures≤60 DEG C;
(2) material that mesh-of-grind is qualified adds tune and converts in still, and with color paste toning to after meeting the requirements, adds isopropylcarbinol etherified amino resins, 1% silicone oil xylene solution, and rest materials, even with the moderate-speed mixer of 100-200r/min; (3), after stirring evenly, be coated with-4 with mixed solvent adjustment viscosity to 60-80S/, filter with 200 order vibratory screening apparatuss, pack.
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| CN104031524B (en) * | 2014-05-28 | 2016-04-27 | 江苏巨珩新材料科技有限公司 | A kind of water-borne coatings for metal color steel surface and preparation method thereof |
| CN104529263B (en) * | 2015-01-14 | 2016-08-24 | 周春莹 | A kind of jade slime paint and preparation and application thereof |
| CN106609089A (en) * | 2015-10-26 | 2017-05-03 | 天津市新丽华色材有限责任公司 | Paint composition |
| CN105838248A (en) * | 2016-04-25 | 2016-08-10 | 南京高崎电机有限公司 | Novel automobile paint |
| CN106280836A (en) * | 2016-08-24 | 2017-01-04 | 何国美 | Leather coating agent |
| CN106497368A (en) * | 2016-11-23 | 2017-03-15 | 安徽菱湖漆股份有限公司 | A kind of paint on suitable engineering mechanical device and preparation method thereof |
| CN108864750A (en) * | 2018-07-03 | 2018-11-23 | 俞华 | A kind of environmental protection color preserving agent |
| CN108912940A (en) * | 2018-08-14 | 2018-11-30 | 合肥岑遥新材料科技有限公司 | A kind of hot galvanizing color coating cladding plate production coating and preparation method thereof |
| CN109438630A (en) * | 2018-09-19 | 2019-03-08 | 江苏三木化工股份有限公司 | Epoxy resin modified acrylic resin of traffic paint and preparation method thereof |
| CN115160883A (en) * | 2022-06-17 | 2022-10-11 | 河南省亚安绝缘材料厂有限公司 | Oil-resistant epoxy modified acrylic coating |
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| JP2834686B2 (en) * | 1995-05-30 | 1998-12-09 | 大日本塗料株式会社 | Organic composite coated steel sheet with excellent chromium elution resistance and post-processing corrosion resistance |
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| CN1583912A (en) * | 2004-05-27 | 2005-02-23 | 解居会 | Coiled material priming paint coating and preparing method thereof |
| CN102251239A (en) * | 2011-06-29 | 2011-11-23 | 安徽工业大学 | Composite color-coating chromium-free passivating solution based on waterborne epoxy resin for galvanized sheet |
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Address after: 246000 Jixian Industrial Park, Daguan Economic Development Zone, Anhui, Anqing Applicant after: Anhui Ling Huqi limited-liability company Address before: 246000 Jixian Industrial Park, Daguan Economic Development Zone, Anhui, Anqing Applicant before: Anqing Linghu Paint Co.,Ltd. |
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