CN101041760A - Aqueous anticorrosion paint and preparation method thereof - Google Patents

Aqueous anticorrosion paint and preparation method thereof Download PDF

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Publication number
CN101041760A
CN101041760A CN 200710011101 CN200710011101A CN101041760A CN 101041760 A CN101041760 A CN 101041760A CN 200710011101 CN200710011101 CN 200710011101 CN 200710011101 A CN200710011101 A CN 200710011101A CN 101041760 A CN101041760 A CN 101041760A
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aqueous
coating
anticorrosive coating
zinc
characterized
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CN 200710011101
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刘建国
王典
殷越军
韩长智
严川伟
王福会
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沈阳市航达科技有限责任公司
中国科学院金属研究所
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Priority to CN 200710011101 priority Critical patent/CN101041760A/en
Publication of CN101041760A publication Critical patent/CN101041760A/en

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Abstract

The invention discloses a water-based antiseptic paint and preparing method, which comprises the following steps: adding aids with finite ratio into filming resin; mixing with zinc-aluminium powder evenly; adding additive; stirring evenly and completely; getting the product. The coating mode of this invention is spread coating, spraying or dip-coating, which can provides better corrosion protection for simple steel basal body.

Description

一种水性防腐涂料及其制备方法 An aqueous anti-corrosion coatings and preparation method

技术领域 FIELD

本发明涉及钢铁的腐蚀防护领域,具体为一种水性防腐涂料及其制备方法。 The present invention relates to the field of corrosion protection of steel, in particular an aqueous anticorrosive paint and preparation method.

背景技术 Background technique

锌铬涂层(达克罗涂层)是二十世纪五十年代发展并开始进入工业领域应用的金属防腐涂层,具有高防护性能、无氢脆等综合优质的特性,问世后得到了广泛和迅猛的发展。 Zinc chrome coating (Dacromet) is 1950 years of development and entered the metal anti-corrosion coating industrial applications with high protection performance, high-quality integrated features such as no hydrogen embrittlement, after the advent of widely and rapid development. 主要应用于汽车、机械、交通、隧道、军事、桥梁等行业,该处理技术成为电镀锌、热浸镀锌、磷化等多种传统表面处理技术的最佳替代工艺。 Mainly used in automobiles, machinery, transportation, tunnels, military, bridges and other industries, the process technology as electro-galvanized, hot-dip galvanizing, the best alternative process a variety of traditional surface treatment technology phosphide and so on. 但由于锌铬涂层高效的防护能力主要依赖涂层中的六价铬元素,其对环境的影响也随人们环保意识的增强逐渐显现。 However, because zinc chromate coating efficient protection capability depends hexavalent chromium in the coating, its impact on the environment gradually with enhanced awareness of environmental protection.

欧盟在2006年7月1日实施RoHS指令,即《电气、电子设备中限制使用某些有害物质指令》,出口欧盟的电子电气设备中禁止使用或含有六种有害物质,其中就包括六价铬。 Implementation of the EU RoHS directive July 1, 2006, the "electrical and electronic equipment in the Restriction of Hazardous Substances Directive", EU exports of electrical and electronic equipment containing or prohibit the use of six hazardous substances, including hexavalent chromium . 这成为我国产品出口欧盟的技术壁垒。 This became our technical barriers to EU exports. 所以不含六价铬等有害金属元素的防腐技术的研究开发就迫在眉睫,具有可观的经济和社会效益。 Therefore, research and development of anti-corrosion technology does not contain hexavalent chromium and other harmful metal elements is urgent, with considerable economic and social benefits.

发明内容 SUMMARY

本发明的目的在于克服现有技术存在的上述不足,提出一种环保无铬水性防腐涂料及其制备方法和应用。 Object of the present invention is to overcome the above disadvantages of the prior art, to provide a chromium-free environmentally friendly water-based anticorrosive paint and a preparation method and application.

本发明给出的技术方案是:这种水性防腐涂料,其特点是其组分按重量百分数为: Aspect of the present invention is given by: This aqueous anticorrosive coating, which is characterized by its components in weight percent:

成膜树脂 3~50;锌铝粉 15~80;添加剂 3~10;去离子水 5~15;分散剂 8~30;助剂 1~3。 3 to 50 film-forming resin; 15 to 80 aluminum zinc; additive 3 ~ 10; 15 ~ 5 with deionized water; dispersing agent 8 ~ 30; ~ 3 auxiliary 1.

本发明所选用的成膜树脂主要为水性树脂,可以是水性环氧树脂、水性氟树脂、水性醇酸树脂、水性有机硅树脂、水性聚氨酯中的一种或一种以上。 The choice of film-forming resin of the present invention is primarily an aqueous resin, aqueous epoxy resin, aqueous fluorine resin, aqueous alkyd resin, aqueous silicone resin, aqueous polyurethane of one or more than one.

成膜助剂为钛酸四丁酯、硅酸四乙酯、硅烷偶联剂174以及硅烷偶联剂151在涂料成膜过程中可分解帮助成膜,一般不超过成膜树脂质的2%。 Coalescent as tetrabutyl titanate, tetraethyl silicate, a silane coupling agent and a silane coupling agent 174 in the coating film forming process 151 to help decompose the deposition, usually no more than 2% of the film-forming resinous .

本发明所选用的锌铝粉是片状锌铝粉,片径一般不大于20微米,厚度不大于0.2微米,其中锌∶铝=7.5~8.5∶1.5~2.5。 The choice of the present invention is a zinc aluminum zinc aluminum flake, flake diameter generally no greater than 20 microns, a thickness no greater than 0.2 microns, wherein the zinc: aluminum = 7.5 ~ 2.5 ~ 8.5:1.5. 其作用是通过阴极保护作用以及物理屏蔽作用来防护基体。 Its role is to protect the substrate by cathodic protection, and physical shielding.

本发明所选用的添加剂为下述的一种或一种以上,它们分别是锡粉,超细钛粉,镍粉,硼酸,纳米二氧化钛,二氧化硅,纳米氧化铝,氧化锌,磷酸锌,其中锡粉、超细钛粉、镍粉、纳米氧化铝的粒径均小于10微米或与锌铝粉的粒径相同。 The additive is selected according to the present invention, one or more of the following, which are tin powder, fine titanium powder, nickel powder, boric acid, titanium dioxide, silica, nano alumina, zinc oxide, zinc phosphate, wherein the tin powder, fine titanium powder, nickel powder, nano-alumina particle size less than 10 microns average particle diameter of the zinc or aluminum of the same. 各种添加剂通过搅拌在金属粉中均匀分散,帮助填补涂层在成型过程中形成的缺陷,具有缓蚀作用。 Various additives by stirring the metal powder is uniformly dispersed, to help fill in the gaps formed during molding the coating having corrosion inhibition.

本发明所选用的分散剂为广泛采用的醇类及其醚类,如异丙醇、叔丁醇、乙二醇及其醚或丙二醇及其醚中的一种或一种以上,其作用是促进金属粉及添加剂的良好分散。 The present invention is selected as a dispersant widely used alcohols, and ethers, such as isopropanol, tert-butanol, ethylene glycol and propylene glycol ethers and ether or one or more, the effect is promote good dispersion of the metal powder and additives.

本发明给出的这种水性防腐涂料的制备方法为: This method of preparation of the present invention is an aqueous anticorrosive coating as given:

(1).按所述比例将助剂和少量去离子水加入到成膜树脂中,用分散机充分搅拌分散均匀;(2).按所述比例将金属粉和添加物在搅拌条件下同时加入分散剂及助剂中,用分散机充分搅拌分散均匀;(3).将上述步骤(1)和步骤(2)混合物在搅拌条件下缓慢混合,持续搅拌30分钟,得成品涂料。 (1) the proportion by aid and a small amount of deionized water was added to the film-forming resin, the dispersion was stirred with a disper sufficiently uniform; (2) according to the proportions of metal powder and additives while stirring. dispersing agents and additives added, the dispersion was stirred with a disper sufficiently uniform; (3) a mixture of the above step (1) and step (2) mixing under stirring slowly, stirring continued for 30 minutes to give the final coating.

本发明给出的这种水性防腐涂料的应用为:涂料为单组分,涂料的涂敷方式为刷涂、喷涂或浸涂;采用加热固化方式,先在70℃~80℃烘干30分钟左右,再在220℃~260℃进行固化。 Application of such aqueous anticorrosive coating of the present invention is given as follows: one-component coating, the coating is a coating method brushing, spraying or dipping; cured by heating mode, the first dryer at 70 ℃ ~ 80 ℃ 30 minutes left and right, and then cured at 220 ℃ ~ 260 ℃. 膜层表面光亮均匀,结合力好。 Uniform bright surface of the film, good adhesion.

与现有技术相比,本发明的有益效果是:1、本发明中使用的成膜物都是水溶性的,不含挥发性的二甲苯等有害物,也不含铬元素。 Compared with the prior art, the beneficial effects of the present invention are: 1, in the present invention are water soluble film-forming composition, free of volatile xylene and other harmful substances, also contain chromium. 涂料可以单组分存在,具有良好的稳定性;2、本发明所选用的添加剂,能有效地降低涂层固化导致的微裂纹,增强涂层的耐蚀性能。 One-component coating material may be present, having a good stability; 2, the selected additive of the present invention, can effectively reduce microcracks resulting coating is cured, to enhance corrosion resistance of the coating.

3、本发明中涂料的配制可在室温下进行,不需要温度条件的控制,降低施工成本。 3, the present invention may be formulated in the coating at room temperature, no temperature control conditions, reduce construction costs.

4、本发明涂料在15微米的膜层厚度下,可以达到200小时的盐雾试验无锈点。 4, the coating of the present invention at a film thickness of 15 microns, up to 200 hours of salt spray test No rust.

具体实施方式 Detailed ways

实施例1 Example 1

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为160小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test time was 160 hours.

实施例2:与实施例1不同之处在于,该防腐涂料的基本配方为: Example 2: Example 1 except that the basic formulation of the anti-corrosion coating:

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为200小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test time is 200 hours.

实施例3:与实施例1不同之处在于,该防腐涂料的基本配方为: Example 3: Example 1 except that the basic formulation of the anti-corrosion coating:

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为190小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test time was 190 hours.

实施例4:与实施例1不同之处在于,该防腐涂料的基本配方为: Example 4: Example 1 except that the basic formulation of the anti-corrosion coating:

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为185小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test time was 185 hours.

实施例5:与实施例1不同之处在于,该防腐涂料的基本配方为: Example 5: Example 1 except that the basic formulation of the anti-corrosion coating:

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为175小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test time was 175 hours.

实施例6:与实施例1不同之处在于,该防腐涂料的基本配方为: Example 6: Example 1 except that the basic formulation of the anti-corrosion coating:

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为180小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test for 180 hours.

实施例7:与实施例1不同之处在于,该防腐涂料的基本配方为: Example 7: Example 1 except that the basic formulation of the anti-corrosion coating:

将上述原料按比例进行搅拌分散,配制成防腐涂料,喷涂于碳钢,涂层厚度15微米左右,中性盐雾试验出现红锈时间为190小时。 The above-described raw material dispersion in proportion stirring, anti-corrosion coatings formulated, sprayed on the steel, coating thickness of about 15 microns, red rust neutral salt spray test time was 190 hours.

Claims (7)

1.一种水性防腐涂料,其特征在于各组分的重量百分比为:成膜树脂 3~50;锌铝粉 15~80;添加剂 3~10;去离子水 5~15;分散剂 8~30;助剂 1~3。 1. An aqueous anticorrosive coating, characterized in that the weight percentage of each component is: 3 to 50 film-forming resin; 15 to 80 aluminum zinc; additive 3 ~ 10; 15 ~ 5 with deionized water; dispersing agent 8 to 30 ; auxiliary 1 ~ 3.
2.按照权利要求1所述的水性防腐涂料,其特征在于所选用的成膜树脂为水性环氧树脂、水性氟树脂、水性醇酸树脂、水性有机硅树脂、水性聚氨酯中的一种或一种以上。 2. The aqueous anticorrosive coating as claimed in claim 1, wherein the selected film-forming resin is an aqueous epoxy resin, an aqueous fluororesin, aqueous alkyd resin, aqueous silicone resin, or an aqueous polyurethane or more kinds.
3.按照权利要求1所述的水性防腐涂料,其特征在于所选用的锌铝粉为片状锌铝粉,其片径不大于20微米、厚度不大于0.2微米。 3. The aqueous anticorrosive coating as claimed in claim 1, wherein the selected zinc aluminum zinc aluminum flake, flake diameter which is no greater than 20 microns, a thickness no greater than 0.2 microns.
4.按照权利要求1所述的水性防腐涂料,其特征在于所选用的添加剂为锡粉、超细钛粉、纳米氧化铝、镍粉、硼酸、纳米二氧化钛、二氧化硅、氧化锌、磷酸锌的一种或一种以上。 4. The aqueous anticorrosive coating as claimed in claim 1, characterized in that the additive is chosen tin powder, fine titanium powder, nano-aluminum oxide, nickel powder, boric acid, titanium dioxide, silica, zinc oxide, zinc phosphate one or more than one.
5.按照权利要求1所述的水性防腐涂料,其特征在于所选用的分散剂为广泛采用的醇类及其醚类,如异丙醇、叔丁醇、乙二醇及其醚或丙二醇及其醚中的一种或一种以上。 5. The aqueous anticorrosive coating according to claim 1, characterized in that the selected dispersant is widely used alcohols, and ethers, such as isopropanol, tert-butanol, ethylene glycol or propylene glycol and their ethers ether which one or more than one.
6.按照权利要求1所述水性防腐涂料,其特征在于所选用的助剂为钛酸四丁酯、硅酸四丁酯、硅烷偶联剂174以及硅烷偶联剂151中的一种或一种以上。 6. The according to claim 1 aqueous anticorrosive coating, characterized in that the auxiliaries are chosen tetrabutyl titanate, tetrabutyl silicate, silane coupling agent, and silane coupling agent 174 or a 151 or more kinds.
7.按照权利要求1所述的水性防腐涂料制备方法,其特征在于包括有以下步骤:(1)按所述比例将助剂和少量去离子水加入到成膜树脂中,用分散机搅拌分散均匀;(2)按所述比例将金属粉和添加物在搅拌条件下同时加入分散剂及助剂中,用分散机搅拌分散均匀;(3)将上述步骤(1)和步骤(2)混合物在搅拌条件下缓慢混合,继续搅拌30分钟,得成品涂料。 7. A method of preparing an aqueous anticorrosive coating according to claim 1, characterized by comprising the steps of: (1) the proportion by aid and a small amount of deionized water was added to the film-forming resin, the dispersion was stirred with a disper uniform; (2) according to the proportions of metal powder and additives were added simultaneously under stirring dispersing agents and aids, with a disper stirring evenly dispersed; (3) the above steps (1) and (2) a mixture of mixing under stirring slowly, stirring continued for 30 minutes to give the final coating.
CN 200710011101 2007-04-25 2007-04-25 Aqueous anticorrosion paint and preparation method thereof CN101041760A (en)

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CN105885483A (en) * 2016-06-12 2016-08-24 合肥和安机械制造有限公司 Butylbenzene-emulsion-modified waterborne dacromet coating solution for automobile chassis and preparation method of coating solution
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CN106046872A (en) * 2016-06-12 2016-10-26 合肥和安机械制造有限公司 Microcrystalline graphite-tannin extract composite waterborne Dacromet coating liquid and preparation method thereof
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CN106147423A (en) * 2016-06-30 2016-11-23 广西梧州龙鱼漆业有限公司 Water-based fluorocarbon varnish and preparation method thereof
CN106189769B (en) * 2016-07-04 2018-09-18 浙江工贸职业技术学院 A kind of Environmental Protective Water-paint and its preparation process
CN106189769A (en) * 2016-07-04 2016-12-07 浙江工贸职业技术学院 A kind of Environmental Protective Water-paint and preparation technology thereof
CN106243995A (en) * 2016-08-01 2016-12-21 安庆瑞泰化工有限公司 A kind of water paint of oil resistant and preparation method thereof
CN106366852A (en) * 2016-08-31 2017-02-01 安徽瑞田机械有限公司 Oil paint for air compressor shells and preparation method of oil paint
CN106566368A (en) * 2016-08-31 2017-04-19 安徽瑞田机械有限公司 Preparation method of high-performance paint suitable for air compressors
CN106566369A (en) * 2016-08-31 2017-04-19 安徽瑞田机械有限公司 Paint for air compressor and preparation method thereof
CN106497259A (en) * 2016-10-26 2017-03-15 沈阳理工大学 Aqueous chromium-free Dacroment-fluorubber composite coating and preparation method thereof
CN106752922A (en) * 2016-12-23 2017-05-31 上海华碧检测技术有限公司 Aqueous chromium-free zinc aluminum anticorrosive paint and preparation method thereof
CN106700917A (en) * 2016-12-30 2017-05-24 苏州合创电子科技有限公司 High-temperature resistant anticorrosion paint with high irradiation rate and preparation method thereof
CN107216728A (en) * 2017-06-20 2017-09-29 合肥博之泰电子科技有限公司 A kind of air-conditioner outdoor unit shell metallic anti-rust paint and preparation method thereof
CN107502164A (en) * 2017-08-16 2017-12-22 天津市津海特种涂料装饰有限公司 A kind of potent corrosion resistant coating of one pack system
CN107446490A (en) * 2017-09-25 2017-12-08 江苏固格澜栅防护设施有限公司 A kind of bloom guardrail wires anticorrosive paint and preparation method thereof
CN107964351A (en) * 2017-09-28 2018-04-27 永星化工(上海)有限公司 A kind of water-based composite zinc-aluminum anticorrosive paint
CN107964351B (en) * 2017-09-28 2019-12-31 永星化工(上海)有限公司 Water-based composite zinc-aluminum anticorrosive paint
CN107828317A (en) * 2017-12-01 2018-03-23 李晓强 Good corrosion resistant bridge framework of steel reinforcement coating of freeze-thaw resistance and preparation method thereof
CN107880605A (en) * 2017-12-07 2018-04-06 天津市双涛达克罗技术有限公司 A kind of novel non-chrome Dyclo paint
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CN108676484A (en) * 2018-06-01 2018-10-19 安徽江锐新材料有限公司 A kind of aqueous priming paint for bumper
CN108728845A (en) * 2018-06-26 2018-11-02 西北有色金属研究院 A kind of preparation method of stainless steel surface zinc doping aluminized coating

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