CN115772822A - Gas-phase environment-friendly anti-rust paper for cast iron products and preparation method thereof - Google Patents
Gas-phase environment-friendly anti-rust paper for cast iron products and preparation method thereof Download PDFInfo
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- CN115772822A CN115772822A CN202211599212.7A CN202211599212A CN115772822A CN 115772822 A CN115772822 A CN 115772822A CN 202211599212 A CN202211599212 A CN 202211599212A CN 115772822 A CN115772822 A CN 115772822A
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- Prior art keywords
- gas
- phase
- paper
- rust
- cast iron
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 13
- WUGCLPOLOCIDHW-UHFFFAOYSA-N 2-aminoethanol;benzoic acid Chemical compound [NH3+]CCO.[O-]C(=O)C1=CC=CC=C1 WUGCLPOLOCIDHW-UHFFFAOYSA-N 0.000 claims abstract description 12
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229960002887 deanol Drugs 0.000 claims abstract description 12
- 239000012972 dimethylethanolamine Substances 0.000 claims abstract description 12
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 12
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 12
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 12
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 12
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 7
- 239000012071 phase Substances 0.000 claims description 48
- 230000007797 corrosion Effects 0.000 claims description 23
- 238000005260 corrosion Methods 0.000 claims description 23
- 239000003112 inhibitor Substances 0.000 claims description 20
- 239000006185 dispersion Substances 0.000 claims description 12
- 239000012808 vapor phase Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 229910001060 Gray iron Inorganic materials 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 230000002401 inhibitory effect Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 125000000018 nitroso group Chemical group N(=O)* 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
An air-phase environment-friendly anti-rust paper for cast iron and a preparation method thereof. The composite gas-phase slow-release layer comprises the following components in percentage by mass: 5-15% dimethylethanolamine; 15-25% of C8-10 mixed acid; 15-25% monoethanolamine benzoate; 20-30% urotropin; 20-30% of sodium benzoate. The anti-rust paper disclosed by the invention has no toxic or side effect, meets the requirements of national environmental protection standards, has gas-phase anti-rust performance superior to that of similar anti-rust paper products at home and abroad, and has the advantages of simplicity in operation, small coating amount, no moisture absorption, excellent anti-rust effect on gray cast iron products, low cost and the like.
Description
The technical field is as follows:
the invention relates to the field of gas-phase environment-friendly antirust paper products for cast iron products, in particular to gas-phase environment-friendly antirust paper and a preparation method thereof.
The background art comprises the following steps:
the gas phase rust prevention technology is one of the important methods of non-contact rust prevention at present. The Corrosion Inhibitor utilizes vapor phase Corrosion Inhibitor (VCI) to automatically volatilize gas at normal temperature to form a layer of protective film on the metal surface, thereby inhibiting the occurrence of electrochemical reaction, and simultaneously blocking the Corrosion of some substances (such as water, oxygen, other acid gases and the like) for accelerating the Corrosion of the metal to the metal surface, thereby retarding or preventing the Corrosion to the metal surface. Common packaging use forms are gas-phase rust preventive powder: placing a certain amount of vapor phase inhibitor in a packaging container or a sealed space; antirust paper: coating a vapor phase inhibitor on the base paper; gas-phase antirust film: the corrosion inhibitor is added to the plastic film. In the three using modes, the gas phase corrosion inhibitor continuously and slowly volatilizes through sublimation to form corrosion inhibitor gas, and the gas phase corrosion inhibitor gas diffuses to the surface of the metal and is communicated with the surface of the metal to form a molecular film through chemical bonds or adsorption, so that the corrosion on the surface of the metal is effectively inhibited.
The gas-phase antirust paper has a long history of being used for surface protection packaging of metal products, has the characteristics of non-contact antirust, no dead angle, environmental friendliness, convenience in use, cleanness and the like compared with the traditional antirust oil and water-soluble antirust liquid, and has been widely applied to the antirust corrosion in the production, transportation, storage and other links of metals and products thereof in recent years. In the effective chemical components used as the gas phase corrosion inhibitor at present, the nitroso-based corrosion inhibitor still occupies a great proportion, but researches have clearly shown that nitroso and secondary amine are easily converted into a strong carcinogen nitrosamine in organisms, and the waste gas phase antirust paper after being used can cause great pollution to the environment. On the other hand, part of the vapor phase corrosion inhibitor has a deliquescence phenomenon, can reduce the mechanical strength of the antirust packaging paper in the storage process, and is easily damaged by edges and corners of steel in the use process. Although researchers use a large amount of industrial modified zeolite to improve the performance of the anti-rust paper, the production of the industrial modified zeolite is harmful to the health of operators and pollutes the environment, and fire accidents easily occur, so that the safe production has potential risks. Furthermore, the use of industrially modified zeolites does not impose any particular requirements on their particle size, and they do not function as large as possible as a support for the dispersed vapor phase corrosion inhibitor. In addition, at present, the components in the formula of the gas phase corrosion inhibitor in most of gas phase antirust paper are simply mixed physically or dissolved and mixed, and are connected with each other without proper surface active molecules, so that the components of the gas phase corrosion inhibitor can not be completely fused with each other, and the gas phase antirust effect of the gas phase corrosion inhibitor can be fully exerted.
The gray cast iron is convenient to obtain and low in cost, generally accounts for 60-70% of cast steel, is widely used, but is more easily corroded, so that the service life of the gray cast iron is shorter, the waste of social data is increased, and the overall development of social economy is not facilitated. Therefore, the development of a gas phase rust preventive paper for gray cast iron products has a great economic value.
According to the application, dimethylethanolamine, C8-10 mixed acid, monoethanolamine benzoate, urotropine and sodium benzoate are taken as a compound vapor phase corrosion inhibitor, are dissolved and mixed under mild conditions to prepare a corrosion inhibitor solution, and then are coated to prepare the anti-rust paper.
The invention content is as follows:
the invention aims to solve the defects in the prior art and provides gas-phase environment-friendly anti-rust paper for cast iron products and a preparation method thereof. Solves the problems of poor performance and environment generation of the gas phase antirust paper in use.
In order to solve the problems, the invention adopts the following technical scheme:
the gas-phase environment-friendly antirust paper for cast iron is characterized by comprising a composite gas-phase slow-release layer and a raw paper layer, wherein the composite gas-phase slow-release layer comprises the following components in percentage by mass: 5-15% dimethylethanolamine; 15-25% of C8-10 mixed acid; 15-25% monoethanolamine benzoate; 20-30% urotropin; 20-30% sodium benzoate;
the preparation method of the gas-phase antirust paper for the cast iron product comprises the following steps:
(a) Adding a certain volume of deionized water into a reactor, heating to 50-70 ℃, sequentially adding the components of the vapor phase corrosion inhibitor, namely dimethylethanolamine, C8-10 mixed acid, monoethanolamine benzoate, urotropine and sodium benzoate according to mass percentage, and stirring to react after adding one component each time to fully fuse the components;
(b) Uniformly coating the dispersion liquid formed in the step (a) on fiber base paper, wherein the coating weight of the dispersion liquid on the fiber base paper is 6-12g/m 2 ；
The volume of deionized water in step (a) is such that the mass percentage of the gas phase slow-release component in the dispersion formed in step (a) is 20-40%.
Compared with the prior art, the invention has the outstanding characteristics and beneficial effects that:
the invention uses common gas phase retarder as raw material to compound and dissolve, then the gas phase rust-proof paper is made. The technology disclosed by the invention has the advantages of simplicity in operation, small coating amount, no moisture absorption, excellent antirust effect on gray cast iron products, low cost and the like.
The specific implementation mode is as follows:
the present invention will be further understood in detail with reference to the following examples, but it should be understood that the scope of the present invention is limited only by the following examples. Various alterations and modifications made by those skilled in the art and conventional means without departing from the spirit of the invention are intended to be included within the scope of the invention.
Example 1:
the gas-phase environment-friendly anti-rust paper for the cast iron product is characterized by comprising a composite gas-phase slow-release layer and a raw paper layer, wherein the composite gas-phase slow-release layer comprises the following components in percentage by mass: 8% of dimethylethanolamine; 20% of C8-10 mixed acid; 17% of monoethanolamine benzoate; 25% urotropin; 30% of sodium benzoate;
the preparation method of the gas-phase environment-friendly antirust paper for the cast iron product comprises the following steps:
(a) Adding a certain volume of deionized water into a reactor, heating to 60 ℃, sequentially adding the components of the vapor phase corrosion inhibitor, namely dimethylethanolamine, C8-10 mixed acid, monoethanolamine benzoate, urotropine and sodium benzoate according to the mass percentage, and stirring to react after each component is added to fully fuse;
(b) Uniformly coating the dispersion liquid formed in the step (a) on a fiber base paper, wherein the coating weight of the dispersion liquid on the fiber base paper is 6g/m 2 ；
The volume of deionized water in step (a) is such that the amount of the gas-phase slow-release component in the dispersion formed in step (a) is 30% by mass.
Example 2:
the gas-phase environment-friendly anti-rust paper for the cast iron product is characterized by comprising a composite gas-phase slow release layer and a raw paper layer, wherein the composite gas-phase slow release layer comprises 10% of dimethylethanolamine in percentage by mass; 18% of C8-10 mixed acid; 20% of monoethanolamine benzoate; 27% urotropin; 25% sodium benzoate;
the amount of the dispersion applied to the fiber base paper was 8g/m 2 ；
The other steps are the same as in example 1.
Example 3:
the gas-phase environment-friendly anti-rust paper for the cast iron product is characterized by comprising a composite gas-phase slow release layer and a raw paper layer, wherein the composite gas-phase slow release layer comprises the following components in percentage by mass: 10% dimethylethanolamine; 22% of C8-10 mixed acid; 15% monoethanolamine benzoate; 30% urotropin; 23% of sodium benzoate;
the amount of the dispersion applied to the fiber base paper was 10g/m 2 ；
The other steps are the same as in example 1.
Example 4:
the gas-phase environment-friendly anti-rust paper for the cast iron product is characterized by comprising a composite gas-phase slow-release layer and a raw paper layer, wherein the composite gas-phase slow-release layer comprises the following components in percentage by mass: 12% dimethylethanolamine; 20% of C8-10 mixed acid; 18% monoethanolamine benzoate; 30% urotropin; 20% of sodium benzoate;
the amount of the dispersion applied to the fiber base paper was 12g/m 2 ；
The other steps are the same as in example 1.
Examples 1 to 5 examples of tests for the effects of applications
A variety of cast iron products were subjected to vapor phase rust inhibitive treatment using the vapor phase rust inhibitive paper products of examples 1,2,3,4 together with commercial rust inhibitive paper products of the same type, and their rust inhibitive performance was compared, and the test standards were in accordance with GB/T19532-2004, and the test results are shown in Table 1:
the comparative test results in table 1 show that the rust preventive effect of the gas phase rust preventive paper of the present invention on various cast iron metals is superior to that of the similar products on the market, wherein the best effect of example 2 is the preferred embodiment of the present invention. The coating weight of the anti-rust paper is 6-12g/m 2 The coating amount is far lower than that of similar antirust paper products at home and abroad (see table 2), and the cost is reduced by 20-30%. The anti-rust paper disclosed by the invention has no toxic or side effect, meets the requirements of national environmental protection standards, can completely replace imported products, and has gas-phase anti-rust performance superior to that of similar anti-rust paper products at home and abroad (see table 1). The analysis formula can conclude that the efficient environment-friendly gas-phase antirust paper is obtained by compounding dimethylethanolamine, C8-10 mixed acid, monoethanolamine benzoate, urotropine, sodium benzoate and the like, and has the advantages of small coating weight and low cost.
Table 2: coating amount and cost comparison of different anti-rust papers
| Different anti-tarnish paper products | Coating amount |
| The invention relates to antirust paper | 6-12g/m 2 |
| Antirust paper of Changzhou company | 16-20g/m 2 |
| Shenyang corporation anti-rust paper | 15-20g/m 2 |
| Anti-rust paper for foreign company | 12-15g/m 2 |
Claims (1)
1. The gas-phase environment-friendly anti-rust paper for the cast iron product is characterized by comprising a composite gas-phase slow-release layer and a raw paper layer, wherein the composite gas-phase slow-release layer comprises the following components in percentage by mass: 5-15% dimethylethanolamine; 15-25% of C8-10 mixed acid; 15-25% monoethanolamine benzoate; 20-30% urotropin; 20-30% of sodium benzoate;
the preparation method of the special gas-phase antirust paper for the cast iron product comprises the following steps:
(a) Adding a certain volume of deionized water into a reactor, heating to 50-70 ℃, sequentially adding the components of the vapor phase corrosion inhibitor, namely dimethylethanolamine, C8-10 mixed acid, monoethanolamine benzoate, urotropine and sodium benzoate according to mass percentage, and stirring to react after adding one component each time to fully fuse the components;
(b) Uniformly coating the dispersion liquid formed in the step (a) on fiber base paper, wherein the coating weight of the dispersion liquid on the fiber base paper is 6-12g/m 2;
the volume of deionized water in step (a) is such that the mass percentage of the gas phase slow-release component in the dispersion formed in step (a) is 20-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211599212.7A CN115772822A (en) | 2022-12-12 | 2022-12-12 | Gas-phase environment-friendly anti-rust paper for cast iron products and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211599212.7A CN115772822A (en) | 2022-12-12 | 2022-12-12 | Gas-phase environment-friendly anti-rust paper for cast iron products and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115772822A true CN115772822A (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211599212.7A Withdrawn CN115772822A (en) | 2022-12-12 | 2022-12-12 | Gas-phase environment-friendly anti-rust paper for cast iron products and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN115772822A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359360A (en) * | 2020-11-13 | 2021-02-12 | 青岛鑫盈鑫包装材料有限公司 | Gas-phase environment-friendly anti-rust paper for multiple metals and preparation method thereof |
| CN112522998A (en) * | 2020-11-30 | 2021-03-19 | 青岛鑫盈鑫包装材料有限公司 | Iron-based metal product gas-phase antirust paper and preparation method thereof |
| CN112626920A (en) * | 2020-12-14 | 2021-04-09 | 青岛鑫盈鑫包装材料有限公司 | Gas-phase antirust paper for galvanized sheet and preparation method thereof |
| CN112626921A (en) * | 2020-12-14 | 2021-04-09 | 青岛鑫盈鑫包装材料有限公司 | Gas-phase anti-rust paper for silicon steel and preparation method thereof |
| CN112681007A (en) * | 2020-12-21 | 2021-04-20 | 青岛鑫盈鑫包装材料有限公司 | Special gas-phase environment-friendly antirust paper for nodular cast iron and preparation method thereof |
-
2022
- 2022-12-12 CN CN202211599212.7A patent/CN115772822A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359360A (en) * | 2020-11-13 | 2021-02-12 | 青岛鑫盈鑫包装材料有限公司 | Gas-phase environment-friendly anti-rust paper for multiple metals and preparation method thereof |
| CN112522998A (en) * | 2020-11-30 | 2021-03-19 | 青岛鑫盈鑫包装材料有限公司 | Iron-based metal product gas-phase antirust paper and preparation method thereof |
| CN112626920A (en) * | 2020-12-14 | 2021-04-09 | 青岛鑫盈鑫包装材料有限公司 | Gas-phase antirust paper for galvanized sheet and preparation method thereof |
| CN112626921A (en) * | 2020-12-14 | 2021-04-09 | 青岛鑫盈鑫包装材料有限公司 | Gas-phase anti-rust paper for silicon steel and preparation method thereof |
| CN112681007A (en) * | 2020-12-21 | 2021-04-20 | 青岛鑫盈鑫包装材料有限公司 | Special gas-phase environment-friendly antirust paper for nodular cast iron and preparation method thereof |
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Application publication date: 20230310 |
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