CN103254871A - Compound corrosion inhibitor for chlorine salt-type snow-melting agent and application of compound corrosion inhibitor - Google Patents
Compound corrosion inhibitor for chlorine salt-type snow-melting agent and application of compound corrosion inhibitor Download PDFInfo
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- CN103254871A CN103254871A CN2013102139245A CN201310213924A CN103254871A CN 103254871 A CN103254871 A CN 103254871A CN 2013102139245 A CN2013102139245 A CN 2013102139245A CN 201310213924 A CN201310213924 A CN 201310213924A CN 103254871 A CN103254871 A CN 103254871A
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Abstract
一种氯盐型融雪剂的复合缓蚀剂及其应用，复合缓蚀剂的物料组成按质量份数为：六偏磷酸钠 12-35；硅酸钠 8-20；磷酸二氢锌 5-20；十二烷基苯磺酸钠 5-12；酒石酸钠 5-20；六亚甲基四胺4-12；丙烯基硫脲 6-13；按上述配比混合均匀即为复合缓蚀剂。上述制得的复合缓蚀剂与氯盐按质量份数0.5-8：100混合均匀即可装袋出售。本发明是针对氯盐类融雪剂的专用缓蚀剂，对道路、桥梁及附属设施等金属具有明显的缓释效果；通过7种物质的协同作用，进而达到较好的缓蚀效果。A compound corrosion inhibitor of a chloride-salt deicing agent and its application. The material composition of the compound corrosion inhibitor is as follows in parts by mass: sodium hexametaphosphate 12-35; sodium silicate 8-20; zinc dihydrogen phosphate 5- 20; Sodium dodecylbenzene sulfonate 5-12; Sodium tartrate 5-20; Hexamethylenetetramine 4-12; Propylene thiourea 6-13; Mixed evenly according to the above ratio is a composite corrosion inhibitor . The composite corrosion inhibitor prepared above and the chloride salt can be mixed uniformly in a ratio of 0.5-8:100 in parts by mass and then sold in bags. The invention is a special corrosion inhibitor for chlorine-salt snow-melting agents, which has obvious slow-release effect on metals such as roads, bridges and auxiliary facilities; through the synergistic effect of seven substances, better corrosion inhibition effect is achieved.
Description
Technical field
The present invention relates to a kind of composite corrosion inhibitor and application thereof of villaumite type Snow Agent.
Background technology
Snowing winter is " formidable enemy " of China's communications and transportation, and it is unobstructed with transportation to have a strong impact on Road safety, so people study the technology of road deicing snow melt.Wherein adopting Snow Agent is application method the most widely.Snow Agent is mainly used in places such as airport, highway, railway, avenue, plays deicing snow melt effect.Snow Agent has numerous species, mainly is villaumite type and non-villaumite type.Non-chloride salt Snow Agent is because the cost height is used less now.And the chloride salt Snow Agent is effective because of its snow melt, low price, is widely used in the snow-removing and ice-thawing of road always.Up to the present, the chloride salt Snow Agent is still main body.The early stage sodium-chlor that uses also used calcium chloride, magnesium chloride, Repone K or their mixture afterwards.
The chloride salt Snow Agent is one " double-edged sword ", it is when thawing ice and snow, can bring huge negative harm, be mainly reflected in its corrodibility (to Infrastructure, bridge, road, parking lot, underground utilities etc.), freeze-thaw damage (to concrete etc.).The villaumite Snow Agent is very serious to the corrosion of the metal (as carbon steel) of road both sides and bridge, the safe handling of harm bridge, and financial loss is huge.The inhibiter of chloride salt Snow Agent mostly is and is one-component at present, and corrosion inhibiting ability is limited.
Summary of the invention
The purpose of this invention is to provide a kind of inhibiter at the chloride salt Snow Agent, reduce in the use of chloride salt Snow Agent the corrosion to road, bridge and affiliated facility etc.
The material of the composite corrosion inhibitor of villaumite type Snow Agent is formed, and mass fraction is:
Sodium hexametaphosphate 99 12-35;
Water glass 8-20;
Primary zinc phosphate 5-20;
Sodium dodecylbenzene sulfonate 5-12;
Sodium tartrate 5-20;
Vulkacit H 4-12;
Propenyl thiocarbamide 6-13;
Mix by said ratio and to be composite corrosion inhibitor.
The application of inhibiter: the above-mentioned composite corrosion inhibitor that makes and villaumite mix by mass fraction 0.5-8:100 can pack sale.
The present invention has following characteristics:
Sodium hexametaphosphate 99 can significantly improve the anodic polarization degree of metal level, makes the metal anode corrosion process be subjected to obvious retardance.Water glass can form passive film in the metallic surface, and then the protection metal is avoided corrosion.Primary zinc phosphate and Sodium hexametaphosphate 99, water glass synergy improve corrosion mitigating effect.Sodium dodecylbenzene sulfonate, sodium tartrate, vulkacit H, propenyl thiocarbamide because the polar group of their electron donors and metal surface coordination network and, form chemisorbed layer, make metal surface form double electrical layers, nonpolar group then aligns, form hydrophobic layer, thereby corrosion reaction is suppressed.By the synergy of above-mentioned 7 kinds of materials, and then reach desirable corrosion mitigating effect.
1. The present invention be directed to the special corrosion agent of chloride salt Snow Agent, metals such as road, bridge and affiliated facility are had tangible slow release effect.
2. this inhibiter is Sodium hexametaphosphate 99, water glass, and primary zinc phosphate, Sodium dodecylbenzene sulfonate, sodium tartrate, vulkacit H, the composite mixture of propenyl thiocarbamide by the synergy of 7 kinds of materials, and then reaches corrosion mitigating effect preferably.
3. preparation process is simple, and each component gets final product after directly mixing after than weighing according to quality.
Embodiment
Embodiment 1:
Accurately take by weighing Sodium hexametaphosphate 99 10 grams respectively, water glass 6 grams, primary zinc phosphate 6 grams, Sodium dodecylbenzene sulfonate 4 grams, sodium tartrate 8 grams, vulkacit H 5 grams, propenyl thiocarbamide thiocarbamide 3.5 grams are they even mixing for standby use.
Embodiment 2:
Accurately take by weighing Sodium hexametaphosphate 99 15 grams respectively, water glass 8 grams, primary zinc phosphate 5 grams, Sodium dodecylbenzene sulfonate 4 grams, sodium tartrate 10 grams, vulkacit H 5 grams, propenyl thiocarbamide thiocarbamide 5.5 grams are they even mixing for standby use.
Embodiment 3:
Accurately take by weighing Sodium hexametaphosphate 99 18 grams respectively, water glass 9 grams, primary zinc phosphate 12 grams, Sodium dodecylbenzene sulfonate 8 grams, sodium tartrate 8.5 grams, vulkacit H 6.5 grams, propenyl thiocarbamide thiocarbamide 9 grams are they even mixing for standby use.
The inhibiter that routine 1-example 3 is made carries out corrosion test according to the Chinese Industrial Standards (CIS) of GB10124-88
(1) earlier be that 4 tinsel concentration of 2 millimeters are 5% sulphuric acid soln immersion 2 minutes with centre punching and aperture.Remove plated film, wash fast successively-alcohol flushing-acetone rinsing, nitrogen blowing is carried out drying, is placed on afterwards in the moisture eliminator, is numbered one by one, measures, weighs;
(2) obtain solution: the pure water that in 4 2000 ml beakers, adds 1000 milliliters respectively, in 4 beakers, all add sodium-chlor 100 grams, calcium chloride 100 grams, be labeled as A, B, C, D respectively, in the B beaker, add composite corrosion inhibitor 1 gram that example 1 makes then; In the C beaker, add composite corrosion inhibitor 4 grams that example 1 makes; In the D beaker, add composite corrosion inhibitor 8 grams that example 1 makes.
(3) will be hung in nylon rope in 4 solution in the beaker respectively through 4 tinsels that step (1) is handled, the nylon rope the other end is bundled on the glass stick, and with the glass stick frame the beaker mouth along on, tinsel is fully immersed in the solution.
(4) tinsel successive soaking after 48 hours in solution is put into concentration and is 3% hydrochloric acid soln after the taking-up, soak and take out the water flushing after 10 minutes, and after brushing remaining rust with test-tube brush, with alcohol flushing-acetone rinsing, nitrogen blowing is carried out drying successively, put into moisture eliminator, weigh one by one.
(5) rust-proof effect evaluation:
Test-results is as follows:
Erosion rate (R) calculation formula:
In the formula: S is the surface-area of tinsel, and T is etching time, and numerical value is 48 hours; D is the density of metal, and numerical value is 7.85 mg/cm
38760 is the hourss in 1 year; 10
4Be that etching extent has mg to be converted to g and erosion rate has cm to be converted to the unit conversion coefficient of mm.
Draw by the antirust experimental result to the composite corrosion inhibitor of embodiment 1-3: the composite corrosion inhibitor of villaumite type Snow Agent provided by the invention, rust-proof effect is better.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213924.5A CN103254871B (en) | 2013-06-03 | 2013-06-03 | Compound corrosion inhibitor for chlorine salt-type snow-melting agent and application of compound corrosion inhibitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310213924.5A CN103254871B (en) | 2013-06-03 | 2013-06-03 | Compound corrosion inhibitor for chlorine salt-type snow-melting agent and application of compound corrosion inhibitor |
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| CN103254871A true CN103254871A (en) | 2013-08-21 |
| CN103254871B CN103254871B (en) | 2014-07-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833527A (en) * | 2017-04-10 | 2017-06-13 | 中盐工程技术研究院有限公司 | A kind of high-efficiency environment friendly inhibition compounds Snow Agent |
| CN108048037A (en) * | 2017-12-29 | 2018-05-18 | 刘志浩 | A kind of deicing salt |
| CN108084966A (en) * | 2017-12-29 | 2018-05-29 | 刘志浩 | A kind of environment-friendly snowmelt agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735770A (en) * | 2008-11-18 | 2010-06-16 | 熊长宏 | Efficient composite anti-corrosive snow melt agent |
| CN103113849A (en) * | 2013-02-25 | 2013-05-22 | 江苏鑫盛元环保科技发展有限公司 | Inorganic-organic compound environment-friendly snow-melting agent |
-
2013
- 2013-06-03 CN CN201310213924.5A patent/CN103254871B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735770A (en) * | 2008-11-18 | 2010-06-16 | 熊长宏 | Efficient composite anti-corrosive snow melt agent |
| CN103113849A (en) * | 2013-02-25 | 2013-05-22 | 江苏鑫盛元环保科技发展有限公司 | Inorganic-organic compound environment-friendly snow-melting agent |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833527A (en) * | 2017-04-10 | 2017-06-13 | 中盐工程技术研究院有限公司 | A kind of high-efficiency environment friendly inhibition compounds Snow Agent |
| CN106833527B (en) * | 2017-04-10 | 2019-05-07 | 中盐工程技术研究院有限公司 | A kind of high-efficiency environment friendly inhibition compounding deicing salt |
| CN108048037A (en) * | 2017-12-29 | 2018-05-18 | 刘志浩 | A kind of deicing salt |
| CN108084966A (en) * | 2017-12-29 | 2018-05-29 | 刘志浩 | A kind of environment-friendly snowmelt agent |
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| Publication number | Publication date |
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| CN103254871B (en) | 2014-07-30 |
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