CN107557795B - A kind of water-based rust conversion solution for steel structure - Google Patents
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 150000007524 organic acids Chemical class 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 claims description 16
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 claims description 14
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 14
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 12
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 9
- 239000001263 FEMA 3042 Substances 0.000 claims description 9
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 9
- 235000015523 tannic acid Nutrition 0.000 claims description 9
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 9
- 229940033123 tannic acid Drugs 0.000 claims description 9
- 229920002258 tannic acid Polymers 0.000 claims description 9
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 235000002949 phytic acid Nutrition 0.000 claims description 8
- 229940068041 phytic acid Drugs 0.000 claims description 8
- 239000000467 phytic acid Substances 0.000 claims description 8
- 229940079877 pyrogallol Drugs 0.000 claims description 8
- -1 compound organic Acid Chemical class 0.000 claims description 7
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 7
- 229960004889 salicylic acid Drugs 0.000 claims description 7
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- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
本发明公开了一种钢结构水性铁锈转化液，包括如下组分：复合有机酸、渗透剂、纳米二氧化钛和水。此种钢结构水性铁锈转化液主要是用于生锈钢结构表面，可以将钢结构表面的锈层进行非常好的转锈，待转锈液实干之后，继续涂上底漆即可。所述的钢结构水性铁锈转化液采用绿色环保的成分构成，不含任何有毒有害的成分(如VOC)，使用时，将该转化液与水性防锈涂料先后使用，能最大限度的保护钢结构，防止其再生锈，提高了钢铁的使用寿命，在施工前不需要进行大规模的除锈工作，节省了大量的财力和人力。The invention discloses a steel structure water-based rust conversion liquid, which comprises the following components: composite organic acid, penetrating agent, nanometer titanium dioxide and water. This kind of steel structure water-based rust conversion solution is mainly used on the surface of rusty steel structure. It can convert the rust layer on the surface of the steel structure very well. After the rust conversion solution is dry, continue to apply the primer. The steel structure water-based rust conversion solution is made of green and environmentally friendly components, and does not contain any toxic and harmful components (such as VOC). , prevent it from rusting again, improve the service life of steel, and do not need to carry out large-scale derusting work before construction, saving a lot of financial and manpower.
Description
技术领域technical field
本发明涉及一种钢结构水性铁锈转化液，属于防腐涂料技术领域。The invention relates to a water-based rust conversion solution for steel structures, which belongs to the technical field of anti-corrosion coatings.
背景技术Background technique
随着我国钢铁工业的发展，钢结构在建筑工程中的应用日益增多。钢结构具有强度高、韧性好、制作方便、施工速度快、建筑周期短等一系列优点。但是也存在明显的弱点——容易腐蚀。据统计，全世界每年因金属腐蚀而造成的经济损失约为7000亿美元。涂料涂层防腐由于具有性能优异、制造及施工方便、价格低廉等一些其它材料与方法无法比拟的优点，因而在选择防腐措施时常常成为优先考虑的对象。With the development of my country's iron and steel industry, the application of steel structures in construction projects is increasing. Steel structure has a series of advantages such as high strength, good toughness, convenient fabrication, fast construction speed and short construction period. But there are also obvious weaknesses - easy to corrode. According to statistics, the annual economic loss caused by metal corrosion in the world is about 700 billion US dollars. Due to the incomparable advantages of other materials and methods such as excellent performance, convenient manufacturing and construction, and low price, paint coating anticorrosion often becomes the object of priority when selecting anticorrosion measures.
对于已经生锈钢铁，涂刷防腐涂料进行防腐也是一种很好的方法。但是传统的方法，必须事先对钢材进行除锈操作，而这项工作占据了整个防腐成本的40％。For rusty steel, it is also a good method to apply anti-corrosion paint for anti-corrosion. However, in the traditional method, the steel must be derusted in advance, and this work accounts for 40% of the entire anticorrosion cost.
发明内容Contents of the invention
为了更好解决问题除锈的成本问题并且最大程度的保护钢结构，本发明提供一种钢结构水性铁锈转化液，该转化液能将铁锈转化成稳定的黑色螯合物，从而避免了大规模除锈的成本问题。In order to better solve the cost problem of rust removal and protect the steel structure to the greatest extent, the present invention provides a water-based rust conversion solution for steel structures, which can convert rust into stable black chelates, thereby avoiding large-scale The cost of rust removal.
一种钢结构水性铁锈转化液，包括如下组分：复合有机酸、渗透剂、纳米二氧化钛和水；A water-based rust conversion solution for steel structures, comprising the following components: composite organic acid, penetrating agent, nano-titanium dioxide and water;
所述的复合有机酸为单宁酸，邻苯二酚，邻苯三酚，水杨酸和植酸的混合。质量比例分别是单宁酸25％-35％、邻苯二酚15％-25％、邻苯三酚15％-25％、水杨酸5％-15％和植酸5％-15％。The compound organic acid is a mixture of tannic acid, catechol, pyrogallol, salicylic acid and phytic acid. The mass proportions are 25%-35% of tannic acid, 15%-25% of catechol, 15%-25% of pyrogallol, 5%-15% of salicylic acid and 5%-15% of phytic acid.
所述的复合有机酸、渗透剂、纳米二氧化钛和水，质量比例为：复合有机酸35％-45％、渗透剂5％-15％、纳米二氧化钛5％-15％和水35％-45％。The mass ratio of the composite organic acid, penetrant, nano-titanium dioxide and water is: 35%-45% of composite organic acid, 5%-15% of penetrant, 5%-15% of nano-titanium dioxide and 35%-45% of water .
所述的纳米二氧化钛为纳米级别锐钛型纳米二氧化钛，直径为10-100nm；The nano-titanium dioxide is nanoscale anatase nano-titanium dioxide with a diameter of 10-100nm;
所述的渗透剂为异丙醇；Described penetration agent is Virahol;
上述铁锈转化液的使用方法是，先在生锈钢结构表面涂刷水性铁锈转化液，待转锈液实干之后，继续涂上一层水性防锈涂料。The method of using the above-mentioned rust conversion solution is to first paint the water-based rust conversion solution on the surface of the rusty steel structure, and then continue to coat a layer of water-based anti-rust paint after the rust conversion solution is dry.
所述的生锈钢结构表面的锈层的厚度最好控制在100um以内，如果锈层过厚或者存在浮锈，则应该进行轻微除锈。The thickness of the rust layer on the surface of the rusted steel structure is preferably controlled within 100um. If the rust layer is too thick or floating rust exists, light rust removal should be carried out.
本发明具有的有益效果：The beneficial effect that the present invention has:
1.本发明的铁锈转化液通过采用复合有机酸，相对于使用一种有机酸的转锈液来说，由于有机酸的复合，使得整个转锈液体系的酸性弱化，能使铁锈形成更稳定、更致密的的惰性黑色螯合物。1. The rust conversion solution of the present invention is by using a compound organic acid, compared to the rust conversion solution using an organic acid, due to the compounding of the organic acid, the acidity of the entire rust conversion solution system is weakened, and the rust can be formed more stable , more dense inert black chelate.
2.以异丙醇作为渗透剂添加到铁锈转化液，相对于不添加异丙醇的体系，不仅能提高转锈液的渗透作用，而且能显著加快转锈液的表干和实干。2. Adding isopropanol as a penetrating agent to the rust conversion solution, compared with the system without adding isopropanol, can not only improve the penetration of the rust conversion solution, but also significantly speed up the rust conversion solution's surface drying and hard drying.
3.纳米二氧化钛添加到铁锈转化液，相对于不添加纳米二氧化钛，由于纳米二氧化钛有较高的热稳定性，无毒性，非迁移性等性质，其转锈液耐水性，耐盐雾性等性质更好。从而与水性防腐涂料配套使用的时候，更加增强了体系的耐盐雾性等性质。3. Nano-titanium dioxide is added to the rust conversion solution. Compared with no addition of nano-titanium dioxide, nano-titanium dioxide has higher thermal stability, non-toxicity, non-migration and other properties, and its rust conversion solution has water resistance and salt spray resistance. better. Therefore, when used in conjunction with water-based anti-corrosion coatings, the salt spray resistance and other properties of the system are further enhanced.
4.采取本发明的分开涂刷工艺比传统的将转锈液与水性涂料混合再进行涂刷的工艺，其储存时间会更久。4. Compared with the traditional technique of mixing the rust-converting solution with the water-based paint and then painting, the separate painting process of the present invention will have a longer storage time.
具体实施方式Detailed ways
实施例1：Example 1:
取单宁酸50g，水50g(单宁酸溶于水中时，要轻微加热溶解)混合；Take 50g of tannic acid and 50g of water (when tannic acid is dissolved in water, heat it slightly to dissolve) and mix;
实施例2：Example 2:
取邻苯二酚50g，水50g混合；Get catechol 50g, water 50g mix;
实施例3：Example 3:
取邻苯三酚50g，水50g混合；Get pyrogallol 50g, water 50g mix;
实施例4：Example 4:
取水杨酸50g，水50g混合；Take 50g of salicylic acid and 50g of water and mix;
实施例5：Example 5:
取植酸50g，水50g混合；Take phytic acid 50g, water 50g and mix;
实施例6：Embodiment 6:
复合有机酸取共50g(其中单宁酸25％-35％、邻苯二酚15％-25％、邻苯三酚15％-25％、水杨酸5％-15％、植酸5％-15％)和水50g混合；Take a total of 50g of compound organic acids (25%-35% of tannic acid, 15%-25% of catechol, 15%-25% of pyrogallol, 5%-15% of salicylic acid, 5% of phytic acid -15%) mixes with water 50g;
实施例7：Embodiment 7:
复合有机酸取共50g(其中单宁酸25％-35％、邻苯二酚15％-25％、邻苯三酚15％-25％、水杨酸5％-15％、植酸5％-15％)、渗透剂10g、水50g混合；Take a total of 50g of compound organic acids (25%-35% of tannic acid, 15%-25% of catechol, 15%-25% of pyrogallol, 5%-15% of salicylic acid, 5% of phytic acid -15%), penetrant 10g, and water 50g are mixed;
实施例8：Embodiment 8:
复合有机酸取共50g(其中单宁酸25％-35％、邻苯二酚15％-25％、邻苯三酚15％-25％、水杨酸5％-15％、植酸5％-15％)、渗透剂10g、纳米二氧化钛10g和水50g混合。Take a total of 50g of compound organic acids (25%-35% of tannic acid, 15%-25% of catechol, 15%-25% of pyrogallol, 5%-15% of salicylic acid, 5% of phytic acid -15%), 10 g of penetrant, 10 g of nano-titanium dioxide and 50 g of water are mixed.
所有实施实例的转锈液直接涂刷在相同生锈程度的钢板上，进行实验：The rust-transfer liquid of all implementation examples is directly painted on the steel plate of the same degree of rusting, and experiment is carried out:
实施例9Example 9
基材处理：用水刀、钢刷、电动刷等工具把金属表面浮锈不牢固异物处理干净。Substrate treatment: clean the floating rust and foreign matter on the metal surface with tools such as water jets, steel brushes, electric brushes, etc.
将具体实施例8的转锈液涂覆在上述处理后带锈蚀的钢铁工件表面，15分钟就会表干并且铁锈会形成黑色螯合物，需要等到实干后才可进行后续涂装工序。Coating the rust-converting liquid of specific embodiment 8 on the surface of the rusted steel workpiece after the above treatment will dry up in 15 minutes and the rust will form a black chelate, and the subsequent coating process can only be carried out after it has dried.
等转锈液实干后，涂刷防腐底漆。After the rust transfer solution is dry, apply the anti-corrosion primer.
实施例9所涂刷的样板的性质见下表：The properties of the template painted in embodiment 9 are shown in the following table:
以上举例为本发明的具体实施例，显然本适应发明不局限于以上实施例，本领域的普通技术人员从本发明公开的内容直接导出或者联想到的变形均应属于本发明专利的保护范围。The above examples are specific embodiments of the present invention. Obviously, the adaptive invention is not limited to the above embodiments. The deformations directly derived or associated by those of ordinary skill in the art from the disclosed content of the present invention shall all belong to the protection scope of the patent of the present invention.
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| CN101921516B (en) * | 2009-10-28 | 2012-07-04 | 北京航空航天大学 | Aqueous antiseptic transparent coating suitable for steel surface and preparation method thereof |
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