CN100519714C - Universal antifriction lubricating oil additives and method for preparing same - Google Patents

Abstract

The invention provides a universal antifriction lubricating oil additives and method for preparation, wherein the addition agent is prepared from (by weight portion) graphite 5-10 parts, molybdenum disulfide 1-4 parts, titanium acid ester coupling agent 0.1-0.9 part, dispersing agent 8-20 parts, dispersion medium 65-90 parts, the preparation method comprises the steps of disintegrating, mixing, kneading and high pressure homogeneity.

Description

Universal antifriction lubricating oil additives and preparation method

Technical field

The invention belongs to lubricating oil additive, particularly a kind of universal antifriction lubricating oil additives and preparation method.

Background technology

In service in mechanical means, must take of the generation of various lubricant methods to reduce friction and to wear and tear, wherein the most frequently used and the most simple and effective method is to adopt lubricating oil to be lubricated.In research and practical application, find that adopt lubricating oil merely, its lubricant effect still is difficult to satisfy the requirement of many application scenarios.In recent years, the preparation and the utilisation technology of metallic substance have obtained significant progress, have reached the level of suitability for industrialized production gradually.Nearest result of study finds that the metallic particles material improves additive as lubricating oil and has a good application prospect, so be born following some technology and products based on this kind novel material.As: US patentNo.4,204,968 disclose a kind of lubricating oil additive, interpolation material copper and lead that it is main, but plumbous adding causes environmental pollution; US patent No.5,523,006 discloses another kind of lubricating oil additive, interpolation material adonic that it is main and copper nickel Zinc-tin alloy, its particle surface has coated one deck polymeric membrane, reduced particulate anti-attrition and supporting capacity, above-mentioned metal alloy almost can't fuse with the iron and steel body because of the relation of crystalline structure, so this kind additive does not almost have repairing effect.In addition, owing to polymeric membrane very easily breaks in friction, the rapid oxidation of its inner metal of back of breaking, thus cause additive to lose efficacy.

Summary of the invention

The objective of the invention is to overcome the deficiency in the present technology, a kind of universal antifriction lubricating oil additives and preparation method are provided.

Technical scheme of the present invention is summarized as follows:

Universal antifriction lubricating oil additives, (below be weight) is made of following component by weight, graphite granule, particle diameter accounts for more than 70% less than 1.0 μ m, 5～10 parts of content; Molybdenumdisulphide, particle diameter accounts for 95% less than 1.5 μ m, 1～4 part of content; 0.1～0.9 part of titanate coupling agent; 8～20 parts of dispersion agents; 65～90 parts in dispersion medium.

Above-mentioned preferred version is: graphite granule, and particle diameter accounts for more than 70% less than 1.0 μ m, 7～9 parts of content; Molybdenumdisulphide, particle diameter accounts for 95% less than 1.5 μ m, 1.5～3 parts of content; 0.2～0.6 part of titanate coupling agent; 10～15 parts of dispersion agents; 75～80 parts in dispersion medium.

Wherein: titanate coupling agent is triisopropyl phosphorous acid metatitanic acid fat or triisopropyl stearic acid metatitanic acid fat; Dispersion agent is two succimides of polyisobutene or the many succimides of polyisobutene; Dispersion medium is 150SN, 150BS base oil; The graphite raw material that uses is to originate in China Nanshu Graphite Mine, Shandong Prov., graphite is hexagonal, coefficient of friction is 0.05～0.19, be phosphorus sheet, Stability Analysis of Structures, what carbon atom was firm combines, survivable, the layer with the interlayer bonding force a little less than, be subjected to shear action to be easy to slippage, good filling, repair are arranged on attrition surface, easily form mulch film in the metallic surface, reach the anti-attrition effect; Its structure of molybdenumdisulphide is the same with graphite, also is hexagonal, and how thin that no matter grinds is, and it has certain laminate structure, and under the pressure friction there is very strong avidity the metallic surface, bears pressure is 3.45 * 10 ⁹Pa, the parts of coating molybdenumdisulphide can turn round under no oily situation, and the moment reaction takes place in molybdenumdisulphide and metallic surface under certain temperature and pressure, generates the extremely low solid film of coefficient of friction, prevents the metallic surface sintering that rubs mutually.

According to the above-mentioned characteristic of graphite and molybdenumdisulphide, two kinds of materials are mixed, manufacture the lubricating oil universal antifriction additive of excellent property through titanate coupling agent surface-active-treatment, dispersion agent dispersion, high-pressure homogeneous processing.Its concrete preparation method may further comprise the steps:

A, graphite is pulverized, particle diameter accounts for more than 70% less than the particle of 1.0 μ m, and maximum particle diameter is no more than 6 μ m;

B, with molybdenumdisulphide pulverize, particle diameter accounts for more than 90% less than the particle of 1.5 μ m;

C, get graphite that a, b step obtain and molybdenumdisulphide with weight part by 3～10:1～5 mixed;

D, the mixture of c is added 6-14 part base oil earlier, add 0.1～0.9 part in titanate coupling agent triisopropyl phosphorous acid metatitanic acid fat or triisopropyl stearic acid metatitanic acid fat again, make that solid particles surface is active to be handled, and in kneader, mediated 20-50 minute;

E, in the mixture of d, add 65～90 parts of the two succimides of dispersion agent polyisobutene or 8～20 parts of the many succimides of polyisobutene and base oils, uniform particles is dispersed in the base oil, in order to obtain stable solid-liquid phase dispersion, once high-pressure homogeneous under 50～70Mpa, promptly obtain the universal antifriction lubricating oil additives finished product.

Lubricating oil additive of the present invention be with graphite and molybdenumdisulphide blending dispersion in lubricating oil, contain the graphite and the molybdenumdisulphide of the fine particle of suspended dispersed.Graphite has fills up, repairs coarse metallic surface, plays the anti-attrition effect.Thermal chemical reaction takes place in molybdenumdisulphide under high-temperature and high-pressure conditions, generate the metal mulch film, antifriction effect is outstanding, and has an anti-extreme pressure energy, after the film that generates had both made and had been worn, can continuously add to again on the metallic surface of friction by the molybdenumdisulphide that in liquid, suspends, continue to play lubricated, also play simultaneously effects such as energy-saving and environmental protection, anti-attrition, speedup.

Embodiment

The present invention will be further described below in conjunction with embodiment:

Embodiment 1

A, natural graphite is pulverized, particle diameter is that the particle of 0.4～1.0 μ m accounts for more than 70%, and maximum particle diameter is no more than 6 μ m;

B, with molybdenumdisulphide pulverize, the particle of particle diameter 0.6～1.5 μ m accounts for more than 90%;

The molybdenumdisulphide of c, 5 parts in graphite getting a step and b step mixes for 1.2 parts;

D, the mixture that the c step is obtained add 8 parts of base oils earlier, add 0.2 part in titanate coupling agent triisopropyl phosphorous acid metatitanic acid fat again, and mediate 20 minutes in kneader;

E, add 65 parts of 12 parts of the two succimides of dispersion agent polyisobutene and 150BS base oils in the said mixture through mediate handling, homogeneous once promptly obtains the universal antifriction lubricating oil additives finished product under the high pressure of 55Mpa.

Embodiment 2

A, content is pulverized at the natural graphite more than 99.5%, particle diameter is that the particle of 0.6～1 μ m accounts for more than 70%, and maximum particle diameter is no more than 6 μ m;

B, extract molybdenumdisulphide from natural brightness ore deposit, molybdenumdisulphide content accounts for the particle that it is pulverized, particle diameter is 0.8～1.5 μ m more than 90% more than 98%;

C, get 7 parts in a step graphite and b step 2 moly-sulfide mixes for 2.5 parts;

D, the mixture that the c step is obtained add 10 parts of base oils earlier, add 0.3 part in triisopropyl stearic acid metatitanic acid fat again, and mediate 30 minutes in kneader;

E, in said mixture, adding 75 parts of 15 parts of the many succimides of polyisobutene and 150SN base oils, at the high pressure homogenizer mesohigh homogeneous of 60Mpa once, promptly obtaining the universal antifriction lubricating oil additives finished product through mediate handling.

Embodiment 3

A, content is pulverized at the natural graphite more than 99.5%, particle diameter is that the particle of 0.8～1.0 μ m accounts for more than 70%, and maximum particle diameter is no more than 6 μ m;

B, extract molybdenumdisulphide from natural brightness ore deposit, molybdenumdisulphide content accounts for the particle that it is pulverized, the particle diameter yardstick is 1.0～1.5 μ m more than 90% more than 98%;

The molybdenumdisulphide of c, 8 parts in graphite getting a step and b step mixes for 3 parts;

D, the mixture that the c step is obtained add 12 parts of base oils earlier, add 0.4 part in titanate coupling agent triisopropyl phosphorous acid metatitanic acid fat again, and mediate 30 minutes in kneader;

E, in said mixture, adding 80 parts of 18 parts of the two succimides of dispersion agent polyisobutene and 150BS base oils, at the high pressure homogenizer mesohigh homogeneous of 65Mpa once, promptly obtaining the universal antifriction lubricating oil additives finished product through mediate handling.

Embodiment 4

A, content is pulverized at the natural graphite more than 99.5%, particle diameter is that the particle of 1 μ m accounts for more than 70%, and maximum particle diameter is no more than 6 μ m;

B, extract molybdenumdisulphide from natural brightness ore deposit, molybdenumdisulphide content accounts for the particle that it is pulverized, particle diameter is 1.5 μ m more than 90% more than 98%;

The molybdenumdisulphide of c, 8.5 parts in graphite getting a step and b step mixes for 1.7 parts;

D, the mixture that the c step is obtained add 10 parts of base oils earlier, add 0.55 part in titanate coupling agent triisopropyl stearic acid metatitanic acid fat again, and mediate 30 minutes in kneader;

E, in said mixture, adding 20 parts of 10 parts of the many succimides of polyisobutene, 50 parts of 150SN base oils and 150BS base oils, at the high pressure homogenizer mesohigh homogeneous of 60Mpa once, promptly obtaining the lubricating oil additive finished product through mediate handling.

Embodiment 5

By general mediation technology, in Mixer pot, add base oil and functional additive, add again and press embodiment 1～4 resulting any universal antifriction lubricating oil additives, the homogeneous method is handled under the 60Mpa high pressure, making it solid, liquid is uniformly dispersed mutually, form not stratified, non-setting stabilising system, promptly obtain extraordinary antifriction lubricating oil.Concrete consumption is as follows:

(1) special gasoline machine oil API SJ SAE15W/40

The universal antifriction additive wherein contains for 1.0 parts: 0.07 part in graphite

0.03 part of molybdenumdisulphide

0.04 part of triisopropyl phosphorous acid titanic acid ester

0.15 part of two succimide

8.0 parts of LZL9800C (functional additive)

8.0 parts of OCPA (viscosity index improver second third glue)

0.4 part of PPT148 (pour point depressant polyacrylic ester)

47.5 parts of 10 centistokes(cst)s (isomerizing hydrogenation base oil)

34.91 parts of 5 centistokes(cst)s (isomerizing hydrogenation base oil)

(2) special diesel oil machine oil API CF-4 SAE/40

The universal antifriction additive wherein contains for 1.0 parts: 0.07 part in graphite

0.03 part of molybdenumdisulphide

0.04 part of triisopropyl phosphorous acid titanic acid ester

0.15 part of two succimide

8.0 parts of T613

0.25 part of PDT148

73.5 parts of 500SN (base oil)

8.06 parts of 150BS (base oil)

9.0 parts of H1275 (functional additive)

(3) extraordinary synthetic gasoline machine oil API SJ SAE5W/40

The universal antifriction additive wherein contains for 0.6 part: 0.04 part in graphite

0.02 part of molybdenumdisulphide

0.03 part of triisopropyl phosphorous acid titanic acid ester

0.08 part of the many succimide of polyethylene

9.5 parts of RO55004 (functional agent)

7.0 parts of T251 (viscosity index improver)

30.09 parts of PAO8# (polyalphaolefin synthetic oil)

45.3 parts of PAO6# (polyalphaolefin synthetic oil)

8.0 parts of E110 (synthetic dibasic acid esters oil)

(4) semi-synthetic special gasoline machine oil API SH SAE5W/40

The universal antifriction additive wherein contains for 0.5 part: 0.03 part in graphite

0.02 part of molybdenumdisulphide

0.04 part of triisopropyl phosphorous acid titanic acid ester

0.07 part of mono alkenyl succimide

12.2 parts of H1204 (functional agent)

49.0 parts of PAO6# (polyalphaolefin synthetic oil)

22.19 parts of 10 centistokes(cst)s (isomerizing hydrogenation base oil)

8.0 parts of E110 (dibasic acid esters synthetic oil)

8.0 parts of T251 (viscosity index improver)

(5) gear oil API GL-5 SAE85W/90

The universal antifriction additive wherein contains for 0.5 part: 0.07 part in graphite

0.03 part of molybdenumdisulphide

0.03 part of tetra-sodium type monoalkoxytitanates

0.06 part of the many succimide of polybutene

4.8 parts of T320 (functional agent)

10.0 parts of T613 (viscosity index improver)

0.4 part of PPT148 (polypropylene ester pour point depressant)

68 parts of 500SN

15.71 parts of 150BS

(6) special greases

The universal antifriction additive wherein contains for 2 parts: 0.14 part in graphite

0.06 part of molybdenumdisulphide

0.08 part in triisopropyl phosphorous acid metatitanic acid fat

0.14 part of many pairs of succimide of polybutene

0.5 part of pentanoic

7.92 parts of 12-oxystearic acids

1.98 parts of stearic acid

LiOHH ₂1.48 parts of O

85.9 parts of 500SN

(7) extraordinary antiwear hydraulic oil

The universal antifriction additive wherein contains for 0.4 part: 0.04 part in graphite

0.03 part of molybdenumdisulphide

0.1 part of dispersion agent

10 parts of functional additives

89.5 parts of base oils

The above-mentioned lubricating oil that utilizes universal antifriction lubricating oil additives to make, in running of an engine, utilize shearing force with graphite and molybdenum disulfide-filled to piston ring, piston and cylinder wall surface, improved the mechanical seal of combustion chamber, the pressurized air and the fuel that have suppressed in compression and power stroke are missed in piston, and the efficiency of combustion of fuel is provided again simultaneously.So not only improved fuel economy (fuel economy), but also reduce exhaust emissions, protected environment owing to fill enough mulch films, when cold starting, prevented friction, wearing and tearing, can better protect engine parts.

Claims (1)

1, the preparation method of universal antifriction lubricating oil additives, its concrete preparation method may further comprise the steps:

A, graphite is pulverized, particle diameter accounts for more than 70% less than the particle of 1.0 μ m, and maximum particle diameter is no more than 6 μ m;

B, with molybdenumdisulphide pulverize, particle diameter accounts for more than 90% less than the particle of 1.5 μ m;

C, get graphite that a, b step obtain and molybdenumdisulphide with weight part by 3～10:1～5 mixed;

D, the mixture of c is added 6-14 part base oil earlier, add 0.1～0.9 part in titanate coupling agent triisopropyl phosphorous acid metatitanic acid fat or triisopropyl stearic acid metatitanic acid fat again, make that solid particles surface is active to be handled, and in kneader, mediated 20-50 minute;

E, in the mixture of d, add 65～90 parts of the two succimides of dispersion agent polyisobutene or 8～20 parts of the many succimides of polyisobutene and base oils, uniform particles is dispersed in the base oil, in order to obtain stable solid-liquid phase dispersion, once high-pressure homogeneous under 50～70MPa, promptly obtain the universal antifriction lubricating oil additives finished product.