CN103113964A - Electronic protective oil and preparation method thereof - Google Patents

Abstract

The invention relates to an electronic protective oil and a preparation method thereof and aims to provide the electronic protective oil with good anti-oxidation and corrosion-resistant effects, lubricating performance and high temperature resistance. The electronic protective oil consists of the following components in parts by weight: 25-45 parts of heavy lubricant base oil, 40-60 parts of poly-alpha-olefinsynthetic oil, 5-20 parts of C16-22 fatty acid aluminum and 1-5 parts of defoaming agent. The preparation method comprises the steps of adding the C16-22 fatty acid aluminum into a reaction kettle, adding calculated amount of heavy lubricant base oil, stirring and heating to 230-270 DEG C and continuously stirring for 1 hour, and then stopping heating and carrying out standing on a mixed solution for more than 24 hours; then adding the defoaming agent, and continuously stirring for 0.5 hour; adding the poly-alpha-olefinsynthetic oil, and continuously stirring for 0.5 hour; and obtaining the product by carrying out uniform mixing on the mixed solution by a triaxial mixing mill. The electronic protective oil, provided by the invention, has good anti-oxidation and corrosion-resistant performances, lubricating performance and high temperature resistance.

Description

A kind of Electronic Protection oil and preparation method thereof

Technical field

The present invention relates to a kind of metal surface protection oil, be specifically related to a kind of metal surface protection oil that electrically contacts.

Background technology

Electrically contacting is the contact conducting circuit that leans on the metallic surface, is often applied in printed-wiring board (PWB).Metal contacts with intermetallic and can produce friction, electrically contacts the component element long period use and easily is worn; And the thermodynamic phase due to metal itself is subject to high temperature, high humidity, the S0 in salt fog and atmosphere ₂, NO ₂, H ₂S, C1 ₂Deng the effect of material and form the corrosive deposits such as sulfide, oxide compound, the corrosive deposit on surface has increased contact resistance like this, can cause switch ineffective, electronic system is malfunctioning, cause Industrial processes to stop, security incident is sent out in serious even can guiding, and causes unnecessary loss.

In order to address the above problem, prior art has mainly adopted following two class modes to improve the erosion resistance of electric contact points metal:

1, when electrical contact surface breaks down, with volatile clean-out system, surface in contact is cleaned, wash corrosive deposit off.This kind method belongs to cures the symptoms, not the disease, and after washing corrosive deposit, electrical contact surface still can continue to be corroded; And this method can not improve the wear resisting property of metallic surface.

2, dip-coating grease before contact element comes into operation.Add lubricant between the surface that mechanically two are rubbed relatively, form the anti-attrition layer of oil-bound film to reduce the wearing and tearing of mechanical part; And lubricant has formed a skim on the mechanical part surface, mechanical surface and airborne steam and etchant gas is kept apart, thereby can prevent mechanical corrosion, has strengthened mechanical work-ing life.In like manner, lubricating oil can protect surface metal not to be corroded on the electric contact piece surface-coated.So, be not corroded in order to protect the electric contact piece surface metal, can apply one deck grease on the electric contact piece surface.

In prior art, the working temperature of common grease is-60 ℃～120 ℃, is difficult to stand more than 120 ℃ high-temperature work environment for a long time, can't satisfy the demand of the industry high-end product such as aerospace.

Summary of the invention

Main purpose of the present invention is a kind of have good anti-oxidation corrosion resistance, lubricity and resistant to elevated temperatures Electronic Protection oil.

For achieving the above object, the technical solution used in the present invention is: a kind of Electronic Protection oil is comprised of following weight part: 25～45 parts of heavy grease base oils, 40～60 parts of poly alpha olefine synthetic oils, 5～20 parts of C _16-22Fatty acid aluminium, 1～5 part of defoamer.

The heavy grease base oil be in the time of 20 ℃ density more than or equal to 0.931g/cm ³And less than 0.998g/cm ³Mineral oil, the price of mineral oil is comparatively cheap, its lubricity and antioxidant property are better.Poly alpha olefine synthetic oil is PAO, be alpha-olefin polymerization under the catalyzer condition, hydrogenation and the long chain alkane of a class formation comparison rule, it has viscosity-temperature characteristics can be good, viscosity index is high, vaporization losses is little, additive response is reached well the advantage such as good in oxidation resistance.C _16-22Fatty acid aluminium has good rust-preventing characteristic, thickening property and wear resistance.And defoamer can so that Electronic Protection oil when being coated on electric contact piece both contacts tightr, can not produce bubble.

Further preferably, 28～40 parts of described heavy grease base oils, 42～55 parts of poly alpha olefine synthetic oils, C _16-226～15 parts of fatty acid aluminiums, 1～3 part of defoamer.

Again further preferably, 32～40 parts of described heavy grease base oils, 46～48 parts of poly alpha olefine synthetic oils, C _16-229～11 parts of fatty acid aluminiums, 1～2 part of defoamer.

Further, described defoamer is a kind of in organopolysiloxane, polyethers, the fatty acid ester compounded thing of higher alcohols, polyoxyethylene polyoxypropylene tetramethylolmethane ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether, polypropylene glycerol aether.These defoamers are more common good defoamers of defoaming effect, and price is also more cheap.

In technique scheme, the consumption of each component is the optimum feed stock ratio that participates in reaction, but the variation that those skilled in the art can instruction according to the present invention be equal to.For example: because the parameter that the error of industrial production itself causes changes, perhaps composite other component increases corresponding effect again, all is equal to technical scheme of the present invention.

The preparation method of described Electronic Protection oil comprises step:

A. with the C of calculated amount _16-22Fatty acid aluminium adds reactor, then adds the heavy grease base oil of calculated amount, is heated with stirring to 230～270 ℃ and continue to stir 1h after adding, then stopped heating and mixed solution is placed 24h more than;

B. will place the defoamer that the above mixed solution of 24h adds calculated amount while stirring, and add rear continuation and stir 0.5h;

C. continue to add again the poly alpha olefine synthetic oil of calculated amount in reactor, continue to stir 0.5h;

D. again mixed solution in reactor is mixed with three axle mixing rolls, namely get product.

Described three axle mixing rolls i.e. mixing roll for being mixed simultaneously by three stir shafts, as T.K HIVIS three axle orbital path running dispersion-mixing rolls.Because Electronic Protection oil viscosity of the present invention is difficult for more greatly stirring, stir more evenly with three axle stirrers than common stirrer.

Electronic Protection oil of the present invention has the following advantages:

1. have good anti-oxidation, anti-corrosion effects;

2. has good lubrication;

3. has long high-temperature resistant result.

Embodiment

For those skilled in the art are known and clear and definite technical scheme of the present invention more, the spy provides following preferred embodiment, but technological thought of the present invention is not limited to following examples.

Embodiment one

A. with 1.379kg C _16-22Fatty acid aluminium adds reactor, then adds the heavy grease base oil of 3.448kg, is heated with stirring to 250 ℃ and continue to stir 1h after adding, stopped heating then, and mixed solution is placed 24h;

B. will place the polyoxyethylene polyoxypropylene tetramethylolmethane ether that mixed solution after 24h adds 0.230kg while stirring, and add rear continuation and stir 0.5h;

C. continue again to add the 4.943kg poly alpha olefine synthetic oil in reactor, continue to stir 0.5h;

D. again mixed solution in reactor is mixed with three axle mixing rolls, namely get product.

Embodiment two

A. with 0.792kg C _16-22Fatty acid aluminium adds reactor, then adds the heavy grease base oil of 3.960kg, is heated with stirring to 260 ℃ and continue to stir 1h after adding, stopped heating then, and mixed solution is placed 48h;

B. will place the polyoxyethylene polyoxypropylene tetramethylolmethane ether that mixed solution after 48h adds 0.297kg while stirring, and add rear continuation and stir 0.5h;

C. continue again to add the 4.950kg poly alpha olefine synthetic oil in reactor, continue to stir 0.5h;

D. again mixed solution in reactor is mixed with three axle mixing rolls, namely get product.

Embodiment three

A. with 1.053kg C _16-22Fatty acid aluminium adds reactor, then adds the heavy grease base oil of 3.684kg, is heated with stirring to 250 ℃ and continue to stir 1h after adding, stopped heating then, and mixed solution is placed 48h;

B. will place the polypropylene glycerol aether that mixed solution after 48h adds 0.211kg while stirring, and add rear continuation and stir 0.5h;

C. continue again to add the 5.053kg poly alpha olefine synthetic oil in reactor, continue to stir 0.5h;

D. again mixed solution in reactor is mixed with three axle mixing rolls, namely get product.

Embodiment four

A. with 0.870kg C _16-22Fatty acid aluminium adds reactor, then adds the heavy grease base oil of 4.130kg, is heated with stirring to 250 ℃ and continue to stir 1h after adding, stopped heating then, and mixed solution is placed 24h;

B. will place the polypropylene glycerol aether that mixed solution after 24h adds 0.109kg while stirring, and add rear continuation and stir 0.5h;

C. continue again to add the 4.891kg poly alpha olefine synthetic oil in reactor, continue to stir 0.5h;

D. again mixed solution in reactor is mixed with three axle mixing rolls, namely get product.

Embodiment tests by " testing method of 1005 high temperature service lifes " in GJB1217-91 " electric connector testing method ": selecting the quadruplet plug is that J599/26FF11SN, socket are the product of J599/20FFPN, coats respectively the Electronic Protection oil production of embodiment 1 to 4 on the triple thread of socket J599/20FF11PN; It is to take out the test of observing and switch on after the baking oven constant temperature 800h of 200 ± 2 ℃ that the quadruplet plug of coating the embodiment product is put into temperature.The electric connector test result that applies embodiment 1 to 4 Electronic Protection oil production is as shown in table 1.

The high temperature resistant test result of table 1

Coated sample	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4
					Test period/h	800	800	800	800
Whether can normally plug together, separate	Be	Be	Be	Be

The energising test is with all contact element series connection after plugging together through the headstock after high temperature test, and whether the electric current of logical 8.5A is observed can plug together to separate by socket and realized the function that circuit is switched on or switched off, and can realize thinking that socket can normally plug together, separate.

Can find out from test result, the product of embodiment 1 to 4 all can be at 200 ± 2 ℃ of temperature, realize normal switch motion after the 800h test, show that the present invention has good resistance to elevated temperatures, guarantee that under higher envrionment temperature the electric connector that applies product of the present invention can normally use for a long time, thereby extended the work-ing life of electric connector.

Claims (5)

1. an Electronic Protection oil, is characterized in that: be comprised of following weight part: 25～45 parts of heavy grease base oils, 40～60 parts of poly alpha olefine synthetic oils, 5～20 parts of C _16-22Fatty acid aluminium, 1～5 part of defoamer.

2. Electronic Protection oil according to claim 1, is characterized in that: 28～40 parts of described heavy grease base oils, 42～55 parts of poly alpha olefine synthetic oils, C _16-226～15 parts of fatty acid aluminiums, 1～3 part of defoamer.

3. Electronic Protection oil according to claim 1, is characterized in that: 32～40 parts of described heavy grease base oils, 46～48 parts of poly alpha olefine synthetic oils, C _16-229～11 parts of fatty acid aluminiums, 1～2 part of defoamer.

4. the described Electronic Protection oil of any one according to claim 1～3 is characterized in that: described defoamer is a kind of in organopolysiloxane, polyethers, the fatty acid ester compounded thing of higher alcohols, polyoxyethylene polyoxypropylene tetramethylolmethane ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether, polypropylene glycerol aether.

5. the preparation method of the described Electronic Protection oil of any one according to claim 1～4 is characterized in that: comprise step:

A. with the C of calculated amount _16-22Fatty acid aluminium adds reactor, then adds the heavy grease base oil of calculated amount, is heated with stirring to 230～270 ℃ and continue to stir 1h after adding, then stopped heating and mixed solution is placed 24h more than;

B. will place the defoamer that the above mixed solution of 24h adds calculated amount while stirring, and add rear continuation and stir 0.5h;

C. continue to add again the poly alpha olefine synthetic oil of calculated amount in reactor, continue to stir 0.5h;

D. again mixed solution in reactor is mixed with three axle mixing rolls, namely get product.