CN104130833A - Angle modulation device grease composition and preparation method thereof - Google Patents
Angle modulation device grease composition and preparation method thereof Download PDFInfo
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- CN104130833A CN104130833A CN201410359503.8A CN201410359503A CN104130833A CN 104130833 A CN104130833 A CN 104130833A CN 201410359503 A CN201410359503 A CN 201410359503A CN 104130833 A CN104130833 A CN 104130833A
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Abstract
The invention provides an angle modulation device grease composition. The angle modulation device grease composition comprises 80-90wt% of poly(alpha-olefin), 6-15wt% of quaternary ammonium salt-modified bentonite, 1-2wt% of an anti-oxidant, 0.2-0.5wt% of a metal corrosion inhibitor and 2-5wt% of an anti-wear reagent at extreme pressure. Through combination of poly(alpha-olefin) as base oil, quaternary ammonium salt-modified bentonite as a densifier, and anti-oxidant, metal corrosion inhibitor and anti-wear reagent at extreme pressure as additives according to the above ratio, the angle modulation device grease composition has excellent integrated performances at a temperature of -55 to 180 DEG C and can be used in the field of automobiles. The preparation method can realizes effective base oil densification only by quaternary ammonium salt-modified bentonite without use of methanol, ethanol, acetone or propylene carbonate as an assisted dispersant.
Description
Technical field
The invention belongs to technical field of lubricating grease, relate in particular to a kind of recliner grease composition and preparation method thereof.
Background technology
Lubricating grease is commonly called as butter or butter, is viscosifying agent is scattered in to a kind of stable solid or the semi-solid product forming in base oil.The kind of lubricating grease has: quicklime grease, sodium base grease, calcium-sodium soap grease and universal lithium base grease etc.Lubricating grease is mainly used in the high and low-temperature apparatus of the industries such as metallurgy, mine, building materials, petrochemical complex, machinofacture, food-processing, textile printing and dyeing and papermaking, plays adhesion, the effect such as wear-resisting and corrosion-resistant.Along with scientific and technical progress, the conversion of the operating ambient temperature of high and low-temperature apparatus, has proposed higher requirement to the lubricating grease being applied in above-mentioned industry under high/low temperature condition, and lubricating grease can be used in lower or higher temperature.
In prior art, Ai Ke lubricating grease is that the high viscosity synthetic oil by lubricity excellence is base oil, and special lithium soap is viscosifying agent and is added with the grease composition that a large amount of PTFE solid lubricants, antioxidant, corrosion inhibitor are made.Such grease composition has excellent abrasion resistance, withstand load, adhesivity and erosion resistance.But the Applicable temperature scope of the grease composition of above-mentioned report is-40 ℃～150 ℃, the high temperature performance of foregoing grease composition can't meet in actual production for the lower or needs of elevated operating temperature more, Applicable temperature narrow range.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of recliner grease composition and preparation method thereof, recliner grease composition high temperature performance provided by the invention is excellent, can be applicable to-55 ℃～180 ℃ wide temperature ranges.
The invention provides a kind of recliner grease composition, comprise following component:
The poly-alpha olefins of 80wt.%～90wt.%;
The quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%;
The oxidation inhibitor of 1wt.%～2wt.%;
The anticorrosive metal agent of 0.2wt.%～0.5wt.%;
The extreme pressure anti-wear additives of 2wt.%～5wt.%.
Preferably, the quaternary ammonium salt-modified wilkinite that comprises 11wt.%～14wt.%.
Preferably, described quaternary ammonium salt comprises one or more in alkyl trimethyl quaternary ammonium salt, alkyl dimethyl benzyl quaternary ammonium salt and the alkyl dimethyl ethoxyl quaternary ammonium salt of C10～C18.
Preferably, described quaternary ammonium salt comprises one or more in Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, octadecyl dimethyl hydroxyethyl ammonium nitrate and octadecyl dimethyl hydroxyethyl ammonium perchlorate.
Preferably, described oxidation inhibitor comprises one or more in pentanoic, di-iso-octyldiphenylamine, N-phenyl-a-naphthylamine, 2,6 ditertiary butyl p cresol and 2,6 di tert butyl 4 methyl phenol.
Preferably, described anticorrosive metal agent comprises one or more in benzotriazole, benzothiazole, thiadiazoles derivative, alkaline earth salt, aminated compounds and poly-phosphate.
Preferably, described extreme pressure anti-wear additives comprises one or more in sulfocompound, P contained compound, antimony containing compounds, zinc compound, boron-containing compound, tetrafluoroethylene, graphite, light calcium carbonate, lead-containing compounds and molybdate compound.
The preparation method who the invention provides recliner grease composition described in a kind of technique scheme, comprises the following steps:
Poly-alpha olefins and quaternary ammonium salt-modified wilkinite are mixed, and constant temperature after heating, obtains recliner grease composition precursor;
Described recliner grease composition precursor is mixed with oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives, obtain recliner grease composition.
Preferably, described quaternary ammonium salt-modified wilkinite is obtained bentonite modified by quaternary ammonium salt;
Described quaternary ammonium salt comprises one or more in alkyl trimethyl quaternary ammonium salt, alkyl dimethyl benzyl quaternary ammonium salt and the alkyl dimethyl ethoxyl quaternary ammonium salt of C10～C18.
Preferably, the temperature of described constant temperature is 110 ℃～150 ℃;
The time of described constant temperature is 30min～40min.
The invention provides a kind of recliner grease composition, comprise the poly-alpha olefins of following component: 80wt.%～90wt.%; The quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%; The oxidation inhibitor of 1wt.%～2wt.%; The anticorrosive metal agent of 0.2wt.%～0.5wt.%; The extreme pressure anti-wear additives of 2wt.%～5wt.%.The present invention be take poly-alpha olefins as base oil, take quaternary ammonium salt-modified wilkinite as viscosifying agent, take oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives is additive, each component is controlled in above-mentioned content range, make the recliner grease composition obtaining in wide temperature range, there is good over-all properties, be beneficial to its application in automotive field.Experimental result shows: recliner grease composition provided by the invention is excellent property within the scope of-55 ℃～180 ℃.In addition, recliner grease composition provided by the invention is biodegradable, is beneficial to its application in automobile angle-adjusting field.
The present invention, without adding the dispersion aidss such as methyl alcohol, ethanol, acetone or propylene carbonate, only needs quaternary ammonium salt-modified wilkinite to carry out multiviscosisty to base oil, effectively multiviscosisty base oil.
Preparation method provided by the invention is easy and simple to handle, is suitable for suitability for industrialized production.
Embodiment
The invention provides a kind of recliner grease composition, comprise following component:
The poly-alpha olefins of 80wt.%～90wt.%;
The quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%;
The oxidation inhibitor of 1wt.%～2wt.%;
The anticorrosive metal agent of 0.2wt.%～0.5wt.%;
The extreme pressure anti-wear additives of 2wt.%～5wt.%.
The present invention be take poly-alpha olefins as base oil, take quaternary ammonium salt-modified wilkinite as viscosifying agent, take oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives is additive, each component is controlled in above-mentioned content range, make the recliner grease composition obtaining in wide temperature range, there is good over-all properties, and biodegradable, be beneficial to its application in automotive field.Experimental result shows: recliner grease composition provided by the invention is excellent property within the scope of-55 ℃～180 ℃.In addition, recliner grease composition provided by the invention, without adding the dispersion aidss such as methyl alcohol, ethanol, acetone or propylene carbonate, only needs quaternary ammonium salt-modified wilkinite to carry out multiviscosisty to base oil, effectively multiviscosisty base oil.
Recliner grease composition provided by the invention comprises the poly-alpha olefins (PAO) of 80wt.%～90wt.%, is preferably 83wt.%～87wt.%, more preferably 84wt.%～86wt.%.In the present invention, the kinematic viscosity of described poly-alpha olefins in the time of 100 ℃ is preferably 5.7mm
2/ s～6.1mm
2/ s, more preferably 5.8mm
2/ s～6.0mm
2/ s; The density of described poly-alpha olefins in the time of 20 ℃ is preferably 0.825kg/m
3～0.829kg/m
3, 0.826kg/m more preferably
3～0.828kg/m
3; The colourity of described poly-alpha olefins is preferably not more than No. 0.5, more preferably No. 0.1～No. 0.4; The pour point of described poly-alpha olefins is preferably higher than-60 ℃, more preferably-100 ℃～-65 ℃; The open flash point of described poly-alpha olefins is preferably and is not less than 225 ℃, more preferably 230 ℃～300 ℃; The acid number of described poly-alpha olefins is preferably and is not more than 0.01mgKOH/g, more preferably 0.005mgKOH/g～0.009mgKOH/g; The bromine number of described poly-alpha olefins is preferably and is not more than 0.4gBr/100g, more preferably 0.2gBr/100g～0.35gBr/100g; The vaporization losses of described poly-alpha olefins is preferably not more than 9%, and more preferably 2%～8%; The moisture of described poly-alpha olefins is preferably not more than 25 μ g/g, more preferably 5 μ g/g～23 μ g/g; The total basicnumber of described poly-alpha olefins is preferably not more than 0.01mgKOH/g, more preferably 0.005mgKOH/g～0.009mgKOH/g; Described poly-alpha olefins is transparent oily liquid; The viscosity index of described poly-alpha olefins is preferably not less than 120, and more preferably 130～200.
In the present invention, described poly-alpha olefins is as the base oil of recliner grease composition, poly-alpha olefins has unique ordered structure, given its much remarkable character that is different from mineral wet goods base oil, as excellent low-temperature performance, fabulous thermostability and oxidative stability etc., be beneficial to the over-all properties of improving grease composition.
The present invention does not have special restriction to the source of described poly-alpha olefins, adopt poly-alpha olefins well known to those skilled in the art, as adopted the commercial goods of poly-alpha olefins, also can adopt preparation method well known to those skilled in the art to prepare voluntarily poly-alpha olefins.
Recliner grease composition provided by the invention comprises the quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%, preferably includes 7wt.%～14wt.%, more preferably 8wt.%～13wt.%.In the present invention, described quaternary ammonium salt-modified wilkinite is that quaternary ammonium salt obtains bentonite modified;
In the present invention, described quaternary ammonium salt preferably includes one or more in alkyl trimethyl quaternary ammonium salt, alkyl dimethyl benzyl quaternary ammonium salt and the alkyl dimethyl ethoxyl quaternary ammonium salt of C10～C18; More preferably comprise one or more in Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, octadecyl dimethyl hydroxyethyl ammonium nitrate and octadecyl dimethyl hydroxyethyl ammonium perchlorate; Most preferably comprise one or more in Dodecyl trimethyl ammonium chloride, octadecyl dimethyl hydroxyethyl ammonium nitrate and octadecyl dimethyl hydroxyethyl ammonium perchlorate.
In the present invention, described quaternary ammonium salt-modified wilkinite is to base oil multiviscosisty effectively, be beneficial to processing and the use of oil product, and traditional organobentonite need to add the dispersion aidss such as methyl alcohol, ethanol, acetone or propylene carbonate, effectively multiviscosisty base oil.
The present invention does not have special restriction to described quaternary ammonium salt-modified bentonitic source, adopts quaternary ammonium salt-modified wilkinite well known to those skilled in the art, as adopted quaternary ammonium salt-modified bentonitic commercial goods.
Recliner grease composition provided by the invention comprises the oxidation inhibitor of 1wt.%～2wt.%, is preferably 1.2wt.%～1.8wt.%, more preferably 1.4wt.%～1.6wt.%.In the present invention, described oxidation inhibitor can suppress or delay grease composition thermooxidizing in air; Described oxidation inhibitor preferably includes pentanoic, di-iso-octyldiphenylamine (IRGANOX L01), N-phenyl-a-naphthylamine, 2,6-ditertbutylparacresol and 2, one or more in 6-di-tert-butyl-4-methy phenol, more preferably comprise one or more in di-iso-octyldiphenylamine (IRGANOX L01), N-phenyl-a-naphthylamine and 2,6 ditertiary butyl p cresol.
Recliner grease composition provided by the invention comprises the anticorrosive metal agent of 0.2wt.%～0.5wt.%, is preferably 0.25wt.%～0.45wt.%, more preferably 0.3wt.%～0.4wt.%.In the present invention, described anticorrosive metal agent can stop the autoxidation of metal pair grease composition.In the present invention, described anticorrosive metal agent preferably includes one or more in benzotriazole (T706), benzothiazole, thiadiazoles derivative, alkaline earth salt, aminated compounds and poly-phosphate; More preferably comprise benzotriazole, benzothiazole, 2-amino-5-sulfydryl-1, one or more in 3,4-thiadiazoles, 5-(p-hydroxybenzene)-2-amido-1,3,4-thiadiazoles and calcium polyphosphate.
Recliner grease composition provided by the invention comprises the extreme pressure anti-wear additives of 2wt.%～5wt.%, is preferably 2.5wt.%～4.5wt.%, more preferably 3wt.%～4wt.%.In the present invention, described extreme pressure anti-wear additives preferably includes sulfocompound, P contained compound, antimony containing compounds, zinc compound, boron-containing compound, tetrafluoroethylene, graphite, light calcium carbonate, one or more in lead-containing compounds and molybdate compound, more preferably comprise zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, dialkyldithiocarbamacompositions antimony, dialkyldithiocarbamacompositions oxygen molybdenum, organic molybdenum complex compound, olefine sulfide, triphenyl, triphenyl thiophosphatephosphorothioate, Tritolyl Phosphate, sulfurized fatty, graphite, molybdenumdisulphide, boron nitride, tungsten disulfide, one or more in tetrafluoroethylene and light calcium carbonate.In the present invention, described extreme pressure anti-wear additives can improve the intensity of recliner grease composition, reduce direct contact between metal and wear prevention, when plus load further increases, after the rupture of oil film that recliner grease composition provides, can there is chemical reaction with metallic surface in extreme pressure anti-wear additives, generate one deck chemical film, thereby improve lubrication.
The preparation method who the invention provides recliner grease composition described in a kind of technique scheme, comprises the following steps:
Poly-alpha olefins and quaternary ammonium salt-modified wilkinite are mixed, and constant temperature after heating, obtains recliner grease composition precursor;
Described recliner grease composition precursor is mixed with oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives, obtain recliner grease composition.
In the present invention, the kind of described poly-alpha olefins, quaternary ammonium salt-modified wilkinite, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives is consistent with kind and the consumption of poly-alpha olefins, organic bentonite, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives described in technique scheme with consumption, does not repeat them here.
The present invention mixes poly-alpha olefins and quaternary ammonium salt-modified wilkinite, and constant temperature after heating, obtains recliner grease composition precursor.The present invention does not have special restriction to the order of described poly-alpha olefins and the mixing of quaternary ammonium salt-modified wilkinite, preferably described quaternary ammonium salt-modified wilkinite is joined in poly-alpha olefins.The present invention preferably carries out described poly-alpha olefins and quaternary ammonium salt-modified bentonitic mixing under the condition stirring.In the present invention, the speed stirring when described poly-alpha olefins and quaternary ammonium salt-modified wilkinite mix is preferably 40rpm～70rpm, more preferably 50rpm～60rpm.
In the present invention, the temperature that described poly-alpha olefins and quaternary ammonium salt-modified wilkinite mix is 15 ℃～40 ℃, more preferably 20 ℃～35 ℃, most preferably is 25 ℃～30 ℃; The time that described poly-alpha olefins and quaternary ammonium salt-modified wilkinite mix is preferably 5min～15min, more preferably 8min～12min.
In the present invention, the temperature of described constant temperature is preferably 110 ℃～150 ℃, more preferably 120 ℃～140 ℃, most preferably is 125 ℃～135 ℃; The time of described constant temperature is preferably 30min～40min, more preferably 32min～38min;
Obtain after recliner grease composition precursor, the present invention mixes described grease composition precursor with oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives, obtain recliner grease composition.The order that the present invention mixes described recliner grease composition precursor, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives does not have special restriction, preferably described oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives is joined in recliner grease composition precursor successively.In the present invention, the temperature that described recliner grease composition precursor, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives mix is preferably 110 ℃～150 ℃, more preferably 120 ℃～140 ℃; The time that described recliner grease composition precursor, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives mix is preferably 8min～12min, more preferably 10min.The present invention is preferably under the condition stirring, by the mixing of described recliner grease composition precursor, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives.In the present invention, the speed stirring when described recliner grease composition precursor, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives mix is preferably 40rpm～70rpm, more preferably 50rpm～60rpm.
Complete after the mixing of described poly-alpha olefins, quaternary ammonium salt-modified wilkinite, oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives, the present invention preferably carries out homogenizing processing by the mixture obtaining, and obtains recliner grease composition.The method that the present invention processes described homogenizing does not have special restriction, adopts homogenizing treatment technology scheme well known to those skilled in the art.The equipment that the present invention processes described homogenizing does not have special restriction, preferably adopts clarifixator well known to those skilled in the art to carry out homogenizing processing to mixture.The present invention preferably described mixture homogenization is processed to Drawing cone in-degree be 265～295.Drawing cone in-degree is to weigh the index of recliner grease composition denseness, refers to that the condition lower cone in load, time and the temperature stipulated falls into the degree of depth of recliner grease composition, and unit represents with 0.1mm.
The present invention tests the outward appearance of recliner grease composition by the method for range estimation to the recliner grease composition preparing.The present invention measures the Drawing cone in-degree of described recliner grease composition according to GB/T 269.The present invention measures the dropping point of described recliner grease composition according to GB/T 3498.The present invention measures the Stencil oil-dividing of described recliner grease composition according to petroleum chemical industry standard SH/T 0324, test condition is: temperature is 180 ℃, and the time is 1h.The present invention carries out water resistant test according to 0109 pair of described recliner grease composition of petroleum chemical industry standard SH/T, and probe temperature is 38 ℃, and the test duration is 1h.The present invention carries out Corrosion Protection test according to 5018 pairs of described recliner grease compositions of GB/T, and probe temperature is 52 ℃, and the test duration is 48h.The present invention carries out four ball experiments according to 0204 pair of described recliner grease composition of petroleum chemical industry standard SH/T, measure the wear scar diameter of described recliner grease composition, test condition is: rotating speed is 1200rpm, and temperature is 75 ℃, time is 60min, and load is 392N.The present invention carries out four ball experiments according to 0202 pair of described recliner grease composition of petroleum chemical industry standard SH/T, measures the integrated abrasion value ZMZ of described recliner grease composition, and test condition is: at normal temperatures, rotating speed is 1500rpm.The present invention is according to the pull-in torque under the low temperature of the described recliner grease composition of petroleum chemical industry standard SH/T 0338 test and running torque, and probe temperature is-40 ℃.
Test result shows: the properties of recliner grease composition provided by the invention is good, and the wider range of use can meet the user demand of automotive field, has significant social value and economic worth.
The invention provides a kind of recliner grease composition, comprise the poly-alpha olefins of following component: 80wt.%～90wt.%; The quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%; The oxidation inhibitor of 1wt.%～2wt.%; The anticorrosive metal agent of 0.2wt.%～0.5wt.% and the extreme pressure anti-wear additives of 2wt.%～5wt.%.The present invention be take poly-alpha olefins as base oil, take quaternary ammonium salt-modified wilkinite as viscosifying agent, take oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives is additive, each component is controlled in above-mentioned content range, make the recliner grease composition obtaining in wide temperature range, there is good over-all properties, be beneficial to its application in automotive field.Experimental result shows: recliner grease composition provided by the invention is excellent property within the scope of-55 ℃～180 ℃.In addition, the present invention, without adding the dispersion aidss such as methyl alcohol, ethanol, acetone or propylene carbonate, only needs quaternary ammonium salt-modified wilkinite to carry out multiviscosisty to base oil, effectively multiviscosisty base oil.
In order to further illustrate the present invention, below in conjunction with embodiment, a kind of recliner grease composition provided by the invention and preparation method thereof is described in detail, but they can not be interpreted as to limiting the scope of the present invention.
Following examples poly-alpha olefins used is PAO6, and its quality index is as shown in table 1, and table 1 is the quality index of the poly-alpha olefins of the embodiment of the present invention 1～3 employing.
The quality index of the poly-alpha olefins that table 1 embodiment of the present invention 1～3 adopts
Embodiment 1
85kg base oil and 14kg Dodecyl trimethyl ammonium chloride modified alta-mud are added in fat still processed and mixed, and stirring at room 10min, is warming up to 130 ℃ ± 5 ℃, and constant temperature stirs 30min, obtains recliner grease composition precursor;
Under above-mentioned constant temperature, in described recliner grease composition precursor, add successively 1.2kgIRGANOX L01,0.3kg T706 and 5kg light calcium carbonate, stir 10min, the mixture obtaining is carried out to homogenizing processing, homogenizing to cone penetration is 295, obtains recliner grease composition.
The present invention carries out performance test according to the testing method described in technique scheme to the recliner grease composition obtaining, and test result is as shown in table 2, the performance test results of the recliner grease composition that table 2 obtains for the embodiment of the present invention 1～3.
Embodiment 2
89kg base oil and 6kg octadecyl dimethyl hydroxyethyl modification of ammonium nitrate wilkinite are added in fat still processed and mixed, at room temperature stir 10 minutes, be warming up to 130 ℃ ± 5 ℃, constant temperature stirs 40min, obtains recliner grease composition precursor;
Under above-mentioned constant temperature, in described recliner grease composition precursor, add successively 2kg 2,6-ditertbutylparacresol, 0.5kg benzothiazole and 2.5kg graphite, stir 8min, the mixture obtaining is carried out to homogenizing processing, homogenizing to cone penetration is 285, obtains recliner grease composition.
The present invention carries out performance test according to the testing method described in technique scheme to the recliner grease composition obtaining, and test result is as shown in table 2, the performance test results of the recliner grease composition that table 2 obtains for the embodiment of the present invention 1～3.
Embodiment 3
80kg base oil and 15kg octadecyl dimethyl hydroxyethyl ammonium perchlorate modified alta-mud are added in fat still processed and mixed, at room temperature stir 10 minutes, be warming up to 130 ℃ ± 5 ℃, constant temperature stirs 35min, obtains recliner grease composition precursor;
Under above-mentioned constant temperature, in described recliner grease composition precursor, add successively 1kg N-phenyl-a-naphthylamine, 0.2kg 2-amino-5-sulfydryl-1,3,4-thiadiazoles and 3.8g molybdenumdisulphide, stir 12min, the mixture obtaining is carried out to homogenizing processing, and homogenizing to cone penetration is 265, obtains recliner grease composition.
The present invention carries out performance test according to the testing method described in technique scheme to the recliner grease composition obtaining, and test result is as shown in table 2, the performance test results of the recliner grease composition that table 2 obtains for the embodiment of the present invention 1～3.
The performance test results of the recliner grease composition that table 2 embodiment of the present invention 1～3 obtains
As can be seen from Table 2, the properties of the recliner grease composition that the embodiment of the present invention provides is good, and the wider range of use can meet the service requirements of angle regulating device for seat of vehicle, has significant social value and economic worth.
As seen from the above embodiment, the invention provides a kind of recliner grease composition, comprise the poly-alpha olefins of following component: 80wt.%～90wt.%; The quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%; The oxidation inhibitor of 1wt.%～2wt.%; The anticorrosive metal agent of 0.2wt.%～0.5wt.%; The extreme pressure anti-wear additives of 2wt.%～5wt.%.The present invention be take poly-alpha olefins as base oil, take quaternary ammonium salt-modified wilkinite as viscosifying agent, take oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives is additive, each component is controlled in above-mentioned content range, make the recliner grease composition obtaining in wide temperature range, there is good over-all properties, be beneficial to its application in automotive field.Experimental result shows: recliner grease composition provided by the invention is excellent property within the scope of-55 ℃～180 ℃.
In addition, the present invention, without adding the dispersion aidss such as methyl alcohol, ethanol, acetone or propylene carbonate, only needs quaternary ammonium salt-modified wilkinite to carry out multiviscosisty to base oil, effectively multiviscosisty base oil.Grease composition provided by the invention be take low viscous poly-alpha olefins as base oil, take organic bentonite as viscosifying agent, and they are the main ingredient of recliner grease composition, both degradable, therefore, recliner grease composition has good biodegradability.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a recliner grease composition, comprises following component:
The poly-alpha olefins of 80wt.%～90wt.%;
The quaternary ammonium salt-modified wilkinite of 6wt.%～15wt.%;
The oxidation inhibitor of 1wt.%～2wt.%;
The anticorrosive metal agent of 0.2wt.%～0.5wt.%;
The extreme pressure anti-wear additives of 2wt.%～5wt.%.
2. recliner grease composition according to claim 1, is characterized in that, comprises the quaternary ammonium salt-modified wilkinite of 11wt.%～14wt.%.
3. recliner grease composition according to claim 1, is characterized in that, described quaternary ammonium salt-modified wilkinite is obtained bentonite modified by quaternary ammonium salt;
Described quaternary ammonium salt comprises one or more in alkyl trimethyl quaternary ammonium salt, alkyl dimethyl benzyl quaternary ammonium salt and the alkyl dimethyl ethoxyl quaternary ammonium salt of C10～C18.
4. recliner grease composition according to claim 3, it is characterized in that, described quaternary ammonium salt comprises one or more in Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, octadecyl dimethyl hydroxyethyl ammonium nitrate and octadecyl dimethyl hydroxyethyl ammonium perchlorate.
5. recliner grease composition according to claim 1, it is characterized in that, described oxidation inhibitor comprises one or more in pentanoic, di-iso-octyldiphenylamine, N-phenyl-a-naphthylamine, 2,6 ditertiary butyl p cresol and 2,6 di tert butyl 4 methyl phenol.
6. recliner grease composition according to claim 1, is characterized in that, described anticorrosive metal agent comprises one or more in benzotriazole, benzothiazole, thiadiazoles derivative, alkaline earth salt, aminated compounds and poly-phosphate.
7. recliner grease composition according to claim 1, it is characterized in that, described extreme pressure anti-wear additives comprises one or more in sulfocompound, P contained compound, antimony containing compounds, zinc compound, boron-containing compound, tetrafluoroethylene, graphite, light calcium carbonate, lead-containing compounds and molybdate compound.
8. a preparation method for recliner grease composition described in claim 1～7 any one, comprises the following steps:
Poly-alpha olefins and quaternary ammonium salt-modified wilkinite are mixed, and constant temperature after heating, obtains grease composition precursor;
Described recliner grease composition precursor is mixed with oxidation inhibitor, anticorrosive metal agent and extreme pressure anti-wear additives, obtain recliner grease composition.
9. preparation method according to claim 8, is characterized in that, described quaternary ammonium salt-modified wilkinite is obtained bentonite modified by quaternary ammonium salt;
Described quaternary ammonium salt comprises one or more in alkyl trimethyl quaternary ammonium salt, alkyl dimethyl benzyl quaternary ammonium salt and alkyl dimethyl ethoxyl quaternary ammonium salt.
10. preparation method according to claim 8, is characterized in that, the temperature of described constant temperature is 110 ℃～150 ℃;
The time of described constant temperature is 30min～40min.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371810A (en) * | 2014-12-02 | 2015-02-25 | 北京天山新材料技术有限公司 | Wind power bolt lubricant resistant to extreme pressure and water shower and convenient for low-temperature brushing |
| CN105219481A (en) * | 2015-10-23 | 2016-01-06 | 中国石油化工股份有限公司 | Automatic balance car grease composition and preparation method |
| CN105296061A (en) * | 2015-11-24 | 2016-02-03 | 杭州力特油剂有限公司 | Lubricating grease |
| CN106479613A (en) * | 2016-10-17 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of lubricant composition and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102925258A (en) * | 2012-10-25 | 2013-02-13 | 中国石油化工股份有限公司 | Lubricating grease composition and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102925258A (en) * | 2012-10-25 | 2013-02-13 | 中国石油化工股份有限公司 | Lubricating grease composition and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371810A (en) * | 2014-12-02 | 2015-02-25 | 北京天山新材料技术有限公司 | Wind power bolt lubricant resistant to extreme pressure and water shower and convenient for low-temperature brushing |
| CN104371810B (en) * | 2014-12-02 | 2017-02-22 | 北京天山新材料技术有限公司 | Wind power bolt lubricant resistant to extreme pressure and water shower and convenient for low-temperature brushing |
| CN105219481A (en) * | 2015-10-23 | 2016-01-06 | 中国石油化工股份有限公司 | Automatic balance car grease composition and preparation method |
| CN105219481B (en) * | 2015-10-23 | 2019-02-01 | 中国石油化工股份有限公司 | Automatic balance car lubricant composition and preparation method |
| CN105296061A (en) * | 2015-11-24 | 2016-02-03 | 杭州力特油剂有限公司 | Lubricating grease |
| CN106479613A (en) * | 2016-10-17 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of lubricant composition and preparation method thereof |
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Application publication date: 20141105 |