CN100543190C - A kind of metal antirusting agent - Google Patents
A kind of metal antirusting agent Download PDFInfo
- Publication number
- CN100543190C CN100543190C CNB2008100289340A CN200810028934A CN100543190C CN 100543190 C CN100543190 C CN 100543190C CN B2008100289340 A CNB2008100289340 A CN B2008100289340A CN 200810028934 A CN200810028934 A CN 200810028934A CN 100543190 C CN100543190 C CN 100543190C
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- China
- Prior art keywords
- antirusting agent
- compressor
- metal antirusting
- rust
- hexahydroaniline
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Abstract
The invention discloses a kind of metal antirusting agent, it is characterized in that it is to be made by following raw materials by weight percent: hexahydroaniline 10～15%, laurostearic acid 15～20%, cyclohexylamine carbonate 5～9% and benzotriazole 0.2～0.4%, surplus are water; Metal antirusting agent of the present invention has good rust-proof effect to cast iron, and copper, aluminium there is adaptability preferably, have favorable compatibility with compressor working medium, refrigerator oil, be applicable to the rust prevention during manufacture of compressor industry and finally antirust, and its residue is few, and has favorable compatibility with compressor working medium, the anti-embroidery time is long, can reach 3～6 months, and copper, aluminium are had adaptability preferably, the present invention simultaneously is nontoxic, harmless to human body, has good environment protecting.
Description
Technical field
The present invention relates to a kind of rust-preventive agent, particularly a kind of rust prevention during manufacture and final antirust metal antirusting agent that is applicable to the compressor industry.
Background technology
In metal-processing industry, rust-preventive agent is widely used in rust prevention during manufacture and finally antirust, uses water-based antirust in the metal rust preventing operation, not only can improve and simplify technological process, and reduce production costs.The water-based antirust of each national capital active development suitable metal processing in recent years is to satisfy the requirement of metal-processing industry each side.
It is matrix that water-based antirust is meant with water, adds a certain amount of water soluble rust inhibitor and the aqueous rust preventive solution that is mixed with.Inhibiter is divided into inorganic inhibitor (as oxygenant NO
3 -, NO
2 -, CrO
4 2-, Cr
2O
7 2-Phosphoric acid salt, polyphosphate, silicate molybdate etc.) and organic inhibitor (comprising all organism of N, S such as amine, aldehydes, heterogeneous ring compound, imidazolium compounds, sulfide, O).
In refrigerator, compressor of air conditioner manufacturing, require very high to water-based antirust, 1, require the residue of rust-preventive agent few, and have favorable compatibility with compressor working medium, and inorganic inhibitor, corrosion mitigating effect is poor, consumption is big, residue is many, and is incompatible with compressor working medium, can cause bad influence; 2, prevent that the embroidery time is long, and copper, aluminium are had adaptability preferably, the compressor components material has cast iron, copper, aluminium, so rust-preventive agent will have good rust-preventing characteristic to cast iron, prevents the embroidery time more than three months, and also adaptability preferably will be arranged to copper, aluminium; 3, when formulating prescription, also must consider product cost, to factors such as human body are nontoxic, harmless.
In refrigerator, compressor of air conditioner manufacturing, external water-based antirust product monopolizes China's rust-preventive agent in the market that compressor is made industry at present, and costing an arm and a leg of import rust-preventive agent increases the compressor manufacturing cost.And the rust-preventive agent of domestic production generally has following defective: foreign matter is arranged: cause compressor performance bad, cause compressor stuck, cause compressor to be scrapped; Rustless property is poor, easily gets rusty, cause the compressor impurity content exceeding index, cause compressor performance bad, cause compressor to be scrapped; Residue is incompatible: destroy refrigerator oil, cause compressor because of lubricated bad, performance is bad or transship, destroy refrigeration agent, cause that compressor is scrapped etc.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of do not have foreign matter, good antirust property, residual less relatively, compatible and cost is low, the metal antirusting agent of environmental protection with compressor working medium.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of metal antirusting agent, it is characterized in that it is to be made by following raw materials by weight percent: hexahydroaniline 10～15%, laurostearic acid 15～20%, cyclohexylamine carbonate 5～9% and benzotriazole 0.2～0.4%, surplus are water.
This metal antirusting agent is little yellow transparent liquid, and the pH value is 8.0～9.5, density 1.03 ± 0.02g/cm
3
Described cyclohexylamine carbonate be weight ratio be respectively 60～75% hexahydroaniline and 25～40% carbonic acid gas in acetone soln, 3～6 hours product of addition polymerization.
Metal antirusting agent of the present invention can be prepared as follows: add hexahydroaniline in pure water, stir, add laurostearic acid, make itself and hexahydroaniline neutralization reaction complete, controlled temperature stirs adding cyclohexylamine carbonate below 90 ℃ again, adds benzotriazole then and is stirred to dissolving and gets final product.
The present invention can adopt direct immersion, method ultrasonic, spray that equipment is carried out antirust processing.
Rust-proof mechanism of the present invention is: organic inhibitor is adsorbed on the metallic surface and forms the successive adsorption layer, corrosive medium and metal is isolated, thereby play rust prevention.The molecule of organic inhibitor is made up of two portions: a part is easily by the hydrophilic polar group of metal adsorption, and another part is hydrophobic or lipophilic organic atomic group (as alkyl).One end of polar group is adsorbed by the metallic surface, and outside formation of a hydrophobic end aligns, and corrosive medium is just squeezed away by the inhibiter molecule as a result, and medium and metallic surface are separated, and plays the protection metal function.The central atom N of polar group contains solely electronics, and it carries out coordination with the d electronics unoccupied orbital of metal and combines, and these atoms of S and O also all contain lone-pair electron, so can both carry out chemisorption in the metallic surface.
The invention has the beneficial effects as follows: metal antirusting agent of the present invention has good rust-proof effect to cast iron, and to copper, aluminium has adaptability preferably, with compressor working medium, refrigerator oil has favorable compatibility, the rust prevention during manufacture that is applicable to the compressor industry reaches finally antirust, its residual rate is low, consumption is little, and have favorable compatibility with compressor working medium, can form anti-rust film as thin as a wafer, the tool rust prevention during manufacture, the anti-embroidery time is long, can reach 3～6 months, and to copper, aluminium has adaptability preferably, and the present invention does not simultaneously contain harmful material, nontoxic to human body, harmless, have good environment protecting.
The present invention is further described below in conjunction with embodiment.
Embodiment
Embodiment 1
To feed the carbonic acid gas of 0.4 gram in 0.7 kilogram of hexahydroaniline acetone soln earlier, 3～6 hours product of polyreaction, standby.In 6.38 kilograms of pure water, add 1 kilogram of hexahydroaniline more in proportion, stir, adding 1.8 kilograms of laurostearic acids makes itself and hexahydroaniline neutralization reaction complete, controlled temperature stirs at the cyclohexylamine carbonate that adds 0.8 kilogram below 90 ℃ again, adds 0.02 kilogram of benzotriazole then and is stirred to dissolving and can obtains metal antirusting agent of the present invention.
Embodiment 2
First with the carbonic acid gas that feeds 0.4 kilogram in 0.7 kilogram of hexahydroaniline acetone soln, 3～6 hours product of polyreaction, standby.In 5.8 kilograms of pure water, add 1.2 kilograms of hexahydroaniline in proportion, stir, add 1.88 kilograms of laurostearic acids, make itself and hexahydroaniline neutralization reaction complete, controlled temperature stirs adding 1.1 kilograms of cyclohexylamine carbonates below 90 ℃ again, adds 0.02 kilogram of benzotriazole then and is stirred to dissolving and can obtains metal antirusting agent of the present invention.
Embodiment 3
In 5.58 kilograms of pure water, add 1.5 kilograms of hexahydroaniline in proportion, stir, add 2 kilograms of laurostearic acids, make itself and hexahydroaniline neutralization reaction complete, controlled temperature stirs adding 0.9 kilogram of cyclohexylamine carbonate below 90 ℃ again, adds 0.02 kilogram of benzotriazole then and is stirred to dissolving and can obtains metal antirusting agent of the present invention.
The comparative example
Get the metal antirusting agent of embodiment 3 preparations and the rust-preventive agent product of Singapore's import and carry out the contrast experiment on performance, wherein every performance index are measured respectively as follows:
High low-temperature stability: undertaken by JB/T4323.2-1999.
Damp and hot rust prevention test: the test piece of one-level grey cast iron is soaked 1min in 50～70 ℃ rust protection liquid, take out oven dry (110 ℃), test piece is put on the dividing plate of moisture eliminator (500～1000ml distilled water is injected in the bottom), add a cover and be placed on constant temperature placement under 35 ℃ ± 2 ℃ conditions.Observe the antirust time.
Corrosion test: undertaken by JB/T4323.2-1999.
Indoor hanging test: the test piece of one-level grey cast iron hangs up in indoor (Guangzhou) after antirust processing, observes test piece surface corrosion situation.
Seal rust prevention test up for safekeeping: the test piece of one-level grey cast iron is put into transparent sealed plastic bag with test piece after antirust processing, the surface appearance of good seal routine observation test piece.
Machine test on the workshop: in Panasonic's ten thousand treasured (Guangzhou) compressor company limited, by the final cleaning of this company, last machine is on probation, antirust, dry after, leave in the Workpiece storage storehouse.Observe the antirust time.
Compatible test: entrust Panasonic's ten thousand treasured (Guangzhou) compressor company limited sample presentation to detect to Japan.
Measurement result sees Table one:
Table one
As shown in Table 1, the present invention and compressor working medium have favorable compatibility, and the anti-embroidery time is long, can reach 3～6 months, and copper, aluminium are had adaptability preferably, the present invention simultaneously is nontoxic, harmless to human body, have good environment protecting, its rustless property near or reach external imported product.
Claims (3)
1. metal antirusting agent, it is characterized in that it is to be made by following raw materials by weight percent: hexahydroaniline 10～15%, laurostearic acid 15～20%, cyclohexylamine carbonate 5～9% and benzotriazole 0.2～0.4%, surplus are water.
2. a kind of metal antirusting agent according to claim 1 is characterized in that this metal antirusting agent is little yellow transparent liquid, and the pH value is 8.0～9.5, density 1.03 ± 0.02g/cm
3
3. a kind of metal antirusting agent according to claim 1, it is characterized in that described cyclohexylamine carbonate be weight ratio be respectively 60～75% hexahydroaniline and 25～40% carbonic acid gas in acetone soln, 3～6 hours product of addition polymerization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100289340A CN100543190C (en) | 2008-06-19 | 2008-06-19 | A kind of metal antirusting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100289340A CN100543190C (en) | 2008-06-19 | 2008-06-19 | A kind of metal antirusting agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101298678A CN101298678A (en) | 2008-11-05 |
| CN100543190C true CN100543190C (en) | 2009-09-23 |
Family
ID=40078624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100289340A Expired - Fee Related CN100543190C (en) | 2008-06-19 | 2008-06-19 | A kind of metal antirusting agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100543190C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296297B (en) * | 2011-08-12 | 2012-07-18 | 广州化学试剂厂 | Aqueous metal anti-rust agent |
| CN103451644B (en) * | 2012-05-30 | 2017-08-22 | 佛山市南海华仁化工有限公司 | A kind of High efficient cast iron antirust water composition |
| CN109825837A (en) * | 2019-02-25 | 2019-05-31 | 蒋文明 | A kind of high-performance metal antirust agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106348A (en) * | 1986-10-31 | 1988-05-11 | 机械工业部武汉材料保护研究所 | Multipurpose gas-phases rust inhibitor with no public contamination and manufacture method thereof |
-
2008
- 2008-06-19 CN CNB2008100289340A patent/CN100543190C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106348A (en) * | 1986-10-31 | 1988-05-11 | 机械工业部武汉材料保护研究所 | Multipurpose gas-phases rust inhibitor with no public contamination and manufacture method thereof |
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| Publication number | Publication date |
|---|---|
| CN101298678A (en) | 2008-11-05 |
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