Highly biodegradable construction machinery lubricating grease and preparation method thereof

A biodegradable, construction machinery technology, applied in the field of construction machinery lubricating grease and preparation, to achieve good market application prospects, improve adhesion and sealing, and prolong service life

Active Publication Date: 2017-03-15
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The mixed oil of vegetable oil and hydrogenated III oil is used as base oil, 12-OH lithium stearate soap is used as thickener, and fluorinated graphite antifriction agent and thiodipropionate antioxidant are compounded at the ...

Method used

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  • Highly biodegradable construction machinery lubricating grease and preparation method thereof
  • Highly biodegradable construction machinery lubricating grease and preparation method thereof
  • Highly biodegradable construction machinery lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Highly biodegradable construction machinery grease composition, components and mass percentages are as follows:

[0026]

[0027] Hydrogenated Group III oil (100°C kinematic viscosity 6.5mm 2 / s) 293g was put into the kettle, the temperature was raised to 60°C, 50g of 12-hydroxy lithium stearate soap was added, and the material was stirred for 30min to disperse. Add soybean oil 176g and heat up material. When the temperature rises to 210-220°C, stop heating and keep stirring for 5 minutes at the temperature. Put the remaining soybean oil into the kettle to cool the material rapidly. When the temperature reaches 120°C, add 40 g of graphite fluoride, 15 g of dilauryl thiodipropionate, and 15 g of polymethacrylate. Stir evenly, you can get out of the kettle. Finally, the finished product is obtained after grinding 3 times with a three-roll mill. The properties of the grease obtained are shown in Table 1.

Embodiment 2

[0029] Highly biodegradable construction machinery grease composition, components and mass percentages are as follows:

[0030]

[0031] Hydrogenated Group III oil (100°C kinematic viscosity 8.5mm 2 / s) 277g was put into the kettle, the temperature was raised to 95°C, 12-hydroxy lithium stearate soap was added, and stirred for 10min to disperse the material. Add 352g of oxidized rapeseed oil and heat up the material. When the temperature rises to 210-220°C, stop heating and keep stirring for 1 min at the temperature. Put the remaining oxidized rapeseed oil into the kettle to cool the material rapidly. When the temperature reaches 85°C, add 10 g of graphite fluoride, 4 g of bis-stearyl thiodipropionate, and 4 g of natural rubber. Stir evenly, you can get out of the kettle. Finally, the finished product is obtained after grinding 3 times with a three-roll mill. The properties of the grease obtained are shown in Table 1.

Embodiment 3

[0033] Highly biodegradable construction machinery grease composition, components and mass percentages are as follows:

[0034]

[0035]

[0036] Hydrogenated Group III oil (100°C kinematic viscosity 8.5mm 2 / s) 280g was put into the kettle, the temperature was raised to 80°C, 12-hydroxy lithium stearate soap was added, and stirred for 15min to disperse the material. Add soybean oil 288g and heat up material. When the temperature rises to 210-220°C, stop heating and keep stirring for 2 minutes at the temperature. Put the remaining soybean oil into the kettle to cool the material rapidly. When the temperature reaches 100°C, add 10 g of graphite fluoride, 4 g of dilauryl thiodipropionate, and 4 g of polymethacrylate. Stir evenly, you can get out of the kettle. Finally, the finished product is obtained after grinding 3 times with a three-roll mill. The properties of the grease obtained are shown in Table 1.

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Abstract

The invention relates to highly biodegradable construction machinery lubricating grease and a preparation method thereof. The grease is prepared from, by weight percentage, 5.0-15.2% of 12-OH lithium stearate soap, 27.7-29.3% ofcategory III hydrogenated oil, 55.3-58.7% of vegetable oil, 1.0-4.0% of carbon monofluoride, 0.4-1.5% of thiodipropionic acid anti-oxidant and 0.4-1.5% of environmental friendly tackifier. The preparation method comprises the steps of mixing the vegetable oil thickened by the 12-OH lithium stearate soap and the category III hydrogenated oil based on the proportion, adding friction reducing agent, anti-oxidant and tackifier to acquire the grease. The grease is suitable for the lubrication of various construction machinery used in a portable water construction, golf course and other situations where environmental pollution is strictly forbidden. The grease can considerably reduce the pollution to the natural environment due to the lubrication oil leakage in construction, improve lubrication condition of construction machinery, and satisfy the machinery's requirement for the lubrication grease service period.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a construction machinery lubricating grease with high biodegradability, good wear-reducing properties, anti-oxidation properties, high and low temperature resistance and adhesion and a preparation method. Background technique [0002] Construction machinery includes various types of excavators, loaders, bulldozers, rotary drilling machines, etc., and the lubrication of the pin shaft of the working arm uses grease. During the construction of construction machinery, the lubricating grease in each pin shaft on the working arm will be affected by the intrusion of various impurities such as sediment, dust, and moisture to varying degrees. Leaks are common. In order to ensure a good lubricating oil film between the pin shaft and the bushing, it is necessary to frequently inject new lubricating grease into each pin shaft on the working arm, while the leaked lubri...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M169/06C10N30/02C10N30/06C10N30/08C10N30/10C10N50/10
CPCC10M169/044C10M169/06C10M2201/042C10M2203/003C10M2205/20C10M2207/1265C10M2207/401C10M2209/084C10M2219/024C10M2290/04C10N2030/02C10N2030/06C10N2030/08C10N2030/10C10N2030/64C10N2050/10
Inventor 王先会袁敬波融占良
Owner CHINA PETROLEUM & CHEM CORP
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