CN113046751A - Conductive metal vapor phase corrosion inhibitor and application thereof - Google Patents
Conductive metal vapor phase corrosion inhibitor and application thereof Download PDFInfo
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- CN113046751A CN113046751A CN202110271938.7A CN202110271938A CN113046751A CN 113046751 A CN113046751 A CN 113046751A CN 202110271938 A CN202110271938 A CN 202110271938A CN 113046751 A CN113046751 A CN 113046751A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 87
- 230000007797 corrosion Effects 0.000 title claims abstract description 85
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 61
- 239000002184 metal Substances 0.000 title claims abstract description 61
- 239000003112 inhibitor Substances 0.000 title claims abstract description 55
- 239000012808 vapor phase Substances 0.000 title claims abstract description 38
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 150000002739 metals Chemical class 0.000 claims abstract description 10
- SFYBNLJYFHVELX-UHFFFAOYSA-N azane 2-methyl-1H-imidazole Chemical compound N.CC=1NC=CN1 SFYBNLJYFHVELX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000005764 inhibitory process Effects 0.000 claims description 15
- NDUDHWBKFFJGMA-UHFFFAOYSA-N 3-(2-methylimidazol-1-yl)propan-1-amine Chemical group CC1=NC=CN1CCCN NDUDHWBKFFJGMA-UHFFFAOYSA-N 0.000 claims description 9
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910021538 borax Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000004328 sodium tetraborate Substances 0.000 claims description 7
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000926 A-3 tool steel Inorganic materials 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 239000012153 distilled water Substances 0.000 abstract description 9
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 abstract description 7
- 239000012964 benzotriazole Substances 0.000 abstract description 7
- 231100000053 low toxicity Toxicity 0.000 abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 230000002401 inhibitory effect Effects 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GAMYVSCDDLXAQW-AOIWZFSPSA-N Thermopsosid Natural products O(C)c1c(O)ccc(C=2Oc3c(c(O)cc(O[C@H]4[C@H](O)[C@@H](O)[C@H](O)[C@H](CO)O4)c3)C(=O)C=2)c1 GAMYVSCDDLXAQW-AOIWZFSPSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical compound C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 229930003944 flavone Natural products 0.000 description 2
- 150000002212 flavone derivatives Chemical class 0.000 description 2
- 235000011949 flavones Nutrition 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- VHBFFQKBGNRLFZ-UHFFFAOYSA-N vitamin p Natural products O1C2=CC=CC=C2C(=O)C=C1C1=CC=CC=C1 VHBFFQKBGNRLFZ-UHFFFAOYSA-N 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- KWIPUXXIFQQMKN-UHFFFAOYSA-N 2-azaniumyl-3-(4-cyanophenyl)propanoate Chemical compound OC(=O)C(N)CC1=CC=C(C#N)C=C1 KWIPUXXIFQQMKN-UHFFFAOYSA-N 0.000 description 1
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical class CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 1
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 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 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229940090948 ammonium benzoate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 229960003638 dopamine Drugs 0.000 description 1
- 230000000214 effect on organisms Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a conductive metal vapor phase corrosion inhibitor and application thereof, wherein the conductive metal vapor phase corrosion inhibitor comprises the following raw materials in parts by weight: 1-30 parts of 2-methylimidazolium ammonium salt; 5-15 parts of benzotriazole; 20-30 parts of a carrier; 50-70 parts of distilled water. The conductive metal vapor phase corrosion inhibitor has the advantages of low toxicity, universality and long-acting effect, and can effectively protect common conductive metals.
Description
Technical Field
The invention relates to the field of corrosion prevention, in particular to a conductive metal vapor phase corrosion inhibitor and application thereof.
Background
With the increasing emphasis on electric power energy in China, the electric power industry has been greatly developed in recent years. The power industry uses a large amount of electronic equipment, and wherein a lot of equipment need place for a long time in outdoor atmospheric environment, for example the switch board, experiences high temperature and high humidity's service environment repeatedly, makes the easy ageing corrosion of shell and the inside electronic equipment material of equipment, and equipment trouble is frequent, shortens the service life of equipment, causes huge economic loss for the country every year, the urgent need of effectual anticorrosive measure.
However, the internal structure of the electronic device is complex, various circuits coexist in a narrow space, the variety of metal materials is wide, and the general anticorrosion measures are difficult to provide a good protection effect on the premise of not influencing the normal use of the device.
The vapor phase inhibitor can be adsorbed on the surface of the metal to form a stable protective film by volatilizing vapor phase particles to the surface of the metal material, thereby inhibiting the occurrence of corrosion reaction without being influenced by the actual shape and size of the protected object. The corrosion inhibitor is added to the metal coating, so that the protective performance of the coating can be improved, and the service life of the coating is prolonged. The method has wide application in the fields of chemical engineering, capital construction, aviation, machinery, military and the like.
Common vapor phase corrosion inhibitors include nitrite corrosion inhibitors, phosphate corrosion inhibitors, benzotriazole, urotropine, and the like. For example, chinese patent publication No. CN111270242A discloses a vapor phase corrosion inhibitor, which comprises the following components in parts by mass: 10-20 parts of an integrated slow-release material, 5-10 parts of phosphoric acid, 5-10 parts of amino acid, 1-5 parts of a surfactant, 3-5 parts of phytic acid, 10-20 parts of urea, 1-5 parts of flavone, 5-10 parts of sodium gluconate and 100-150 parts of deionized water, wherein the integrated slow-release material comprises the following components in parts by mass: 15-30 parts of dopamine, 200 parts of N, N-dimethylformamide, 5-10 parts of N, N' -carbonyldiimidazole, 5-10 parts of triethylamine and 6-12 parts of acetic acid. The Chinese patent document with the publication number of CN109295459A discloses a vapor phase corrosion inhibitor under a high-humidity chlorine-containing environment, which comprises the following components in percentage by mass: ammonium molybdate: 3-7 wt%; sodium benzoate: 2-5 wt%; methyl benzotriazole: 6-10 wt%; ammonium benzoate: 5-8 wt%; and (3) flavone: 3-6 wt%; organic solvent: 6-8 wt%; sodium nitrite: 20-26 wt%; urea: 15-20 wt%; distilled water: 10-40 wt%.
However, nitrite has an adverse effect on organisms, and phosphate has been limited in use because it can eutrophicate rivers and lakes. The development of environment-friendly and low-toxicity universal vapor phase corrosion inhibitors has become a main development trend of vapor phase corrosion inhibitors in recent years.
Disclosure of Invention
The invention provides a vapor phase corrosion inhibitor for conductive metals, which has the advantages of low toxicity, universality and long-acting effect and can effectively protect common conductive metals.
The technical scheme of the invention is as follows:
a conductive metal vapor phase corrosion inhibitor comprises the following raw materials in parts by weight:
in the conductive metal vapor phase corrosion inhibitor, when the content of the 2-methylimidazole ammonium salt is too low, the corrosion inhibition effect is not obvious, the corrosion inhibition effect is enhanced along with the increase of the content of the 2-methylimidazole ammonium salt, and when the content of the 2-methylimidazole ammonium salt reaches a certain content, the corrosion inhibition effect tends to be stable.
Preferably, the conductive metal vapor phase corrosion inhibitor comprises the following raw materials in parts by weight:
further preferably, the conductive metal vapor phase corrosion inhibitor comprises the following raw materials in parts by weight:
preferably, the 2-methylimidazolium salt is 2-methyl-1H-imidazole-1-propylamine salt.
Preferably, the carrier is borax or silica gel powder.
The invention also provides an application of the conductive metal vapor phase corrosion inhibitor in corrosion inhibition of power equipment, which comprises the following steps: the conductive metal vapor phase corrosion inhibitor is placed in the power equipment, and the conductive metal vapor phase corrosion inhibitor volatilizes to the surface of a conductive metal part of the power equipment to form an anti-corrosion protective film.
The conductive metal part is made of silver, red copper, brass, aluminum or A3 steel.
Compared with the prior art, the invention has the beneficial effects that:
(1) the conductive metal vapor phase corrosion inhibitor has multi-metal universality and can effectively protect common conductive metal;
(2) the main component of the conductive metal vapor phase corrosion inhibitor is 2-methylimidazole ammonium salt, which replaces the commonly used nitrite, so that the conductive metal vapor phase corrosion inhibitor has low toxicity;
(3) the vapor phase corrosion inhibitor for the conductive metal does not increase the resistance of the conductive metal and does not influence the normal operation of power equipment.
Detailed Description
Example 1
A metal vapor phase corrosion inhibitor is composed of the following raw materials in parts by weight: 5 parts of 2-methyl-1H-imidazole-1-propylamine salt, 10 parts of benzotriazole, 30 parts of borax and 70 parts of distilled water.
Conducting corrosion inhibition treatment on several conductive metals in a simulated high-humidity environment, and judging the corrosion inhibition effect of each corrosion inhibitor on the conductive metals, wherein the method comprises the following steps:
grinding four conductive metal sheets of A3 steel, aluminum, red copper and brass with 280#, 660# and 3000# abrasive paper respectively, soaking in absolute ethyl alcohol, performing ultrasonic treatment for 10min, washing with Wahaha water for three times, drying with nitrogen, and weighing for later use.
Pouring 40ml of municipal tap water into four 1125ml wide-mouth bottles respectively, wherein 25ml of small beakers are placed into two 1125ml wide-mouth bottles respectively, and 0.5g of corrosion inhibitor is filled into the small beakers to serve as an experimental group; the other two jars were empty of the corrosion inhibitor and served as blank controls. And (3) placing the conductive metal sheet in a corrosion medium solution for 15min, wherein the corrosion medium is a 5% NaCl solution, and uniformly distributing the corrosion medium on the surface of the conductive metal sheet. The treated conductive metal sheet is hung in a wide-mouth bottle by a nylon rope, the tail end of the wide-mouth bottle is marked, the mouth of the wide-mouth bottle is surrounded by a raw material belt, and the bottle plug is sealed.
Each jar was treated at room temperature for 12h and then heated in a water bath at 50 ℃ for 12 h. And then testing the corrosion weight loss result of each metal sheet.
The method for removing the corrosion products on the corrosion sample of the national standard GB/T16545-1996 is used for removing the corrosion products on each conductive metal sheet:
1. a3 steel: and (3) putting the test piece into a film removing liquid, washing the test piece with deionized water after removing corrosion products, then washing the test piece with ethanol, drying the test piece with cold air, and accurately weighing the test piece. Adding 3.5 g.L of HCl solution with the ratio of 1:1 into the stripping solution-1And hexa-methine tetramine.
2. Red copper and brass: sequentially washing the surface of red copper with distilled water and ethanol, blowing dry with cold air, wiping off corrosion products on the surface with an eraser, washing with 10% sulfuric acid solution to remove corrosion products and protective films generated on the surface of a copper block, finally sequentially washing with deionized water and absolute ethanol, and accurately weighing after blowing dry with cold air.
3. Aluminum: placing the sample in a concentrated nitric acid solution, standing for 5 minutes, sequentially cleaning with deionized water and absolute ethyl alcohol, drying by cold air, and accurately weighing.
The weight loss results of the conductive metal sheets of the experimental group and the blank control group are respectively averaged, and the test results are shown in table 1:
TABLE 1
As can be seen from Table 1, the corrosion inhibitor of the formula has a certain corrosion inhibition effect on four conductive metals, wherein the corrosion inhibition effect of brass and red copper is more obvious than that of the other two metals.
Example 2
A metal vapor phase corrosion inhibitor is composed of the following raw materials in parts by weight: 10 parts of 2-methyl-1H-imidazole-1-propylamine salt, 10 parts of benzotriazole, 30 parts of borax and 60 parts of distilled water.
The corrosion inhibiting effect of each corrosion inhibitor on the conductive metal was tested according to the method of example 1, and the results are shown in table 2:
TABLE 2
Example 3
A metal vapor phase corrosion inhibitor is composed of the following raw materials in parts by weight: 15 parts of 2-methyl-1H-imidazole-1-propylamine salt, 10 parts of benzotriazole, 30 parts of borax and 55 parts of distilled water.
The corrosion inhibiting effect of each corrosion inhibitor on the conductive metal was tested according to the method of example 1, and the results are shown in table 3:
TABLE 3
As can be seen from tables 1-3, the formula has obvious corrosion inhibition effect on four metals, wherein the corrosion inhibition effect on brass and A3 steel is especially obvious, the effect is more obvious as the proportion of 2-methyl-1H-imidazole-1-propylamine salt is increased, the corrosion inhibition efficiency on brass and A3 steel can reach more than 70% when the weight part exceeds 15, but the corrosion inhibition effect on aluminum is not obviously improved, and the corrosion inhibition effect may be related to the self-passivation property of aluminum.
Table 4 shows the effect of the change of the solution concentration of the corrosion inhibitor in example 3 on the solution conductivity, and it can be seen that the conductivity of the distilled water is the lowest at 20 ℃ or 50 ℃, the conductivity of the solution rapidly increases after the corrosion inhibitor is added, and the higher the concentration of the corrosion inhibitor solution is, the higher the conductivity is, which indicates that the concentration of the corrosion inhibitor solution is positively correlated with the conductivity, and the higher the temperature is, the higher the conductivity is, which indicates that the corrosion inhibitor does not increase the resistance of the conductive metal surface and does not affect the normal operation of the circuit.
TABLE 4 influence of corrosion inhibitor on solution conductivity
Example 4
A metal vapor phase corrosion inhibitor is composed of the following raw materials in parts by weight: 20 parts of 2-methyl-1H-imidazole-1-propylamine salt, 10 parts of benzotriazole, 30 parts of borax and 50 parts of distilled water.
The corrosion inhibiting effect of each corrosion inhibitor on the conductive metal was tested according to the method of example 1, and the results are shown in table 5:
TABLE 5
Example 5
A metal vapor phase corrosion inhibitor is composed of the following raw materials in parts by weight: 25 parts of 2-methyl-1H-imidazole-1-propylamine salt, 10 parts of benzotriazole, 30 parts of borax and 50 parts of distilled water.
The corrosion inhibiting effect of each corrosion inhibitor on the conductive metal was tested according to the method of example 1, and the results are shown in table 6:
TABLE 6
From tables 5 and 6, it can be seen that as the proportion of 2-methyl-1H-imidazole-1-propylamine salt continues to increase, the corrosion inhibition effects of the four metals are not improved more significantly, which indicates that the adsorption of the metal to the corrosion inhibitor particles may be saturated at this time.
The above-mentioned embodiments are intended to illustrate the technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, additions, equivalents, etc. made within the scope of the principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. The vapor phase corrosion inhibitor for the conductive metal is characterized by comprising the following raw materials in parts by weight:
2. the conductive metal vapor phase corrosion inhibitor of claim 1, comprising the following raw materials in parts by weight:
3. the conductive metal vapor phase corrosion inhibitor of claim 1, comprising the following raw materials in parts by weight:
4. a conductive metal vapor phase corrosion inhibitor according to any of claims 1 to 3 wherein said 2-methylimidazolium ammonium salt is 2-methyl-1H-imidazole-1-propylamine salt.
5. The vapor phase corrosion inhibitor for conductive metals according to any of claims 1 to 3, wherein the carrier is borax or silica gel powder.
6. Use of a conductive metal vapor phase corrosion inhibitor according to any one of claims 1 to 5 for corrosion inhibition of electrical equipment, comprising:
the conductive metal vapor phase corrosion inhibitor is placed in the power equipment, and the conductive metal vapor phase corrosion inhibitor volatilizes to the surface of a conductive metal part of the power equipment to form an anti-corrosion protective film.
7. The use according to claim 6, wherein the conductive metal component is silver, copper, brass, aluminum or A3 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110271938.7A CN113046751A (en) | 2021-03-12 | 2021-03-12 | Conductive metal vapor phase corrosion inhibitor and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110271938.7A CN113046751A (en) | 2021-03-12 | 2021-03-12 | Conductive metal vapor phase corrosion inhibitor and application thereof |
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|---|---|
| CN113046751A true CN113046751A (en) | 2021-06-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103531A (en) * | 2012-11-13 | 2013-05-15 | 铜陵祥云消防科技有限责任公司 | Vapor-phase corrosion inhibition antirust agent containing 1, 2-methylimidazole |
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| US20210071308A1 (en) * | 2019-09-09 | 2021-03-11 | University Of North Texas | Selective surface finishing for corrosion inhibition via chemical vapor deposition |
| CN110760850A (en) * | 2019-09-29 | 2020-02-07 | 中国人民解放军陆军装甲兵学院 | Composite vapor phase corrosion inhibitor and application thereof in corrosion prevention and protection of large-scale equipment |
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