CN105132089A - Lubricating paste and preparation method of same - Google Patents
Lubricating paste and preparation method of same Download PDFInfo
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- CN105132089A CN105132089A CN201510417146.0A CN201510417146A CN105132089A CN 105132089 A CN105132089 A CN 105132089A CN 201510417146 A CN201510417146 A CN 201510417146A CN 105132089 A CN105132089 A CN 105132089A
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- modified polyacetal
- ethylene glycol
- lubricating grease
- polyacetal powder
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 123
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 81
- 239000000843 powder Substances 0.000 claims abstract description 61
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims abstract description 21
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 21
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 21
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920002545 silicone oil Polymers 0.000 claims abstract description 21
- -1 2 ~ 5 parts Chemical compound 0.000 claims description 70
- 229930182556 Polyacetal Natural products 0.000 claims description 60
- 239000004519 grease Substances 0.000 claims description 49
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 40
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 30
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 20
- 239000004166 Lanolin Substances 0.000 claims description 20
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 20
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000004698 Polyethylene Substances 0.000 claims description 20
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 20
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims description 20
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 20
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 20
- 229910002804 graphite Inorganic materials 0.000 claims description 20
- 239000010439 graphite Substances 0.000 claims description 20
- 229940039717 lanolin Drugs 0.000 claims description 20
- 235000019388 lanolin Nutrition 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 20
- 238000005453 pelletization Methods 0.000 claims description 20
- 229920000573 polyethylene Polymers 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 abstract 1
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 abstract 1
- 210000002268 wool Anatomy 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The invention discloses a lubricating paste and a preparation method of same. The lubricating paste is composed of following raw materials, by weight, 3-6 parts of aluminum hydroxide, 2-5 parts of magnesium oxide, 15-25 parts of white oil, 5-8 parts of melamine, 4-8 parts of ethylene glycol monoethyl ether acetate, 3-6 parts of pentaerythritol stearate, 8-12 parts of wool fat, 10-15 parts of ethylene glycol, 5-8 parts of ultrahigh molecular weight polyethylene fiber, 15-20 parts of silicone oil and 20-25 parts of modified polyformaldehyde powder. The lubricating paste is high in bearing capability, is low in friction coefficient, is vibration-resistant and anti-impact and has permeability, is good in friction reducing performance, can effectively prevent machine from being damaged, is excellent in corrosion resistance and anti-rust performance, can absorb large quantity of heat at a high temperature and ensures normal operation on a device in severe environments.
Description
Technical field
The present invention relates to technical field of lubricant, be specifically related to a kind of lubricating grease and preparation method thereof.
Background technology
Lubricant is used to reduce friction resistance, slows down the lubricant medium of wearing and tearing, and can also play cooling, cleaning and antipollution effect to friction pair.Along with the development of mechanization degree, people require more and more higher to the work-ing life of machinery, and in order to meet miniaturization, the long service life of mechanized equipment, people it is also proposed higher requirement to the frictional behaviour of lubricating grease and resistance to abrasion.Current lubricating grease is of a great variety, but some heat conductivilitys are poor, and some frictional coefficient are enough not low, and some penetrating powers are not strong, cannot meet the requirement of people to lubricating grease simultaneously.
Summary of the invention
For solving the problem, the object of this invention is to provide a kind of lubricating grease and preparation method thereof.
The present invention for achieving the above object, is achieved through the following technical solutions:
A kind of lubricating grease, with parts by weight, consist of the following composition: 3 ~ 6 parts, aluminium hydroxide, 2 ~ 5 parts, magnesium oxide, white oil 15 ~ 25 parts, trimeric cyanamide 5 ~ 8 parts, ethylene glycol ether acetate 4 ~ 8 parts, pentaerythritol stearate 3 ~ 6 parts, 8 ~ 12 parts, lanolin, ethylene glycol 10 ~ 15 parts, superhigh molecular weight polyethylene fibers 5 ~ 8 parts, silicone oil 15 ~ 20 parts and 20 ~ 25 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 ~ 0.08 part, carbamylurea 0.5 ~ 1 part, 0.5 ~ 0.8 part, calcium carbonate, 5 ~ 10 parts, graphite and molybdenumdisulphide 5 ~ 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 ~ 150 revs/min again, melting mixing at barrel temperature 190 ~ 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 ~ 5 μm.
Preferred a kind of lubricating grease, with parts by weight, consist of the following composition: 5 parts, aluminium hydroxide, 3 parts, magnesium oxide, white oil 20 parts, trimeric cyanamide 6 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and 22 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm.
The present invention also comprises the preparation method of lubricating grease, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 ~ 0.08 part, carbamylurea 0.5 ~ 1 part, 0.5 ~ 0.8 part, calcium carbonate, 5 ~ 10 parts, graphite and molybdenumdisulphide 5 ~ 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 ~ 150 revs/min again, melting mixing at barrel temperature 190 ~ 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 ~ 5 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 15 ~ 25 parts, ethylene glycol ether acetate 4 ~ 8 parts, pentaerythritol stearate 3 ~ 6 parts, 8 ~ 12 parts, lanolin, ethylene glycol 10 ~ 15 parts, superhigh molecular weight polyethylene fibers 5 ~ 8 parts, silicone oil 15 ~ 20 parts and step 1. 20 ~ 25 parts, gained modified polyacetal powder add in reactor, stir after 1 ~ 3 hour and be cooled to 25 ~ 35 DEG C at 100 ~ 150 DEG C, add 3 ~ 6 parts, aluminium hydroxide again, 2 ~ 5 parts, magnesium oxide, trimeric cyanamide 5 ~ 8 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 1 ~ 5 μm.
The preparation method of preferred a kind of lubricating grease, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 20 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and step 1. 22 parts, gained modified polyacetal powder add in reactor, stir after 2 hours and be cooled to 30 DEG C at 120 DEG C, add 5 parts, aluminium hydroxide again, 3 parts, magnesium oxide, trimeric cyanamide 6 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 3 μm.
The invention has the advantages that:
Lubricating grease hardness of the present invention is moderate, there is high supporting capacity, low-friction coefficient, vibration resistance, shock resistance and perviousness, antifriction performance is good, can effectively prevent apparatus impaired, and there is excellent erosion resistance, rustless property, can absorb a large amount of heat under the high temperature conditions, guarantee equipment normally works under rugged environment.
Embodiment
A kind of lubricating grease, with parts by weight, consist of the following composition: 3 ~ 6 parts, aluminium hydroxide, 2 ~ 5 parts, magnesium oxide, white oil 15 ~ 25 parts, trimeric cyanamide 5 ~ 8 parts, ethylene glycol ether acetate 4 ~ 8 parts, pentaerythritol stearate 3 ~ 6 parts, 8 ~ 12 parts, lanolin, ethylene glycol 10 ~ 15 parts, superhigh molecular weight polyethylene fibers 5 ~ 8 parts, silicone oil 15 ~ 20 parts and 20 ~ 25 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 ~ 0.08 part, carbamylurea 0.5 ~ 1 part, 0.5 ~ 0.8 part, calcium carbonate, 5 ~ 10 parts, graphite and molybdenumdisulphide 5 ~ 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 ~ 150 revs/min again, melting mixing at barrel temperature 190 ~ 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 ~ 5 μm.
Preferred a kind of lubricating grease, with parts by weight, consist of the following composition: 5 parts, aluminium hydroxide, 3 parts, magnesium oxide, white oil 20 parts, trimeric cyanamide 6 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and 22 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm.
The present invention also comprises the preparation method of lubricating grease, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 ~ 0.08 part, carbamylurea 0.5 ~ 1 part, 0.5 ~ 0.8 part, calcium carbonate, 5 ~ 10 parts, graphite and molybdenumdisulphide 5 ~ 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 ~ 150 revs/min again, melting mixing at barrel temperature 190 ~ 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 ~ 5 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 15 ~ 25 parts, ethylene glycol ether acetate 4 ~ 8 parts, pentaerythritol stearate 3 ~ 6 parts, 8 ~ 12 parts, lanolin, ethylene glycol 10 ~ 15 parts, superhigh molecular weight polyethylene fibers 5 ~ 8 parts, silicone oil 15 ~ 20 parts and step 1. 20 ~ 25 parts, gained modified polyacetal powder add in reactor, stir after 1 ~ 3 hour and be cooled to 25 ~ 35 DEG C at 100 ~ 150 DEG C, add 3 ~ 6 parts, aluminium hydroxide again, 2 ~ 5 parts, magnesium oxide, trimeric cyanamide 5 ~ 8 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 1 ~ 5 μm.
The preparation method of preferred a kind of lubricating grease, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 20 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and step 1. 22 parts, gained modified polyacetal powder add in reactor, stir after 2 hours and be cooled to 30 DEG C at 120 DEG C, add 5 parts, aluminium hydroxide again, 3 parts, magnesium oxide, trimeric cyanamide 6 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 3 μm.
Embodiment 1
A kind of lubricating grease, with parts by weight, consist of the following composition: 3 parts, aluminium hydroxide, 2 parts, magnesium oxide, white oil 15 parts, trimeric cyanamide 5 parts, ethylene glycol ether acetate 4 parts, pentaerythritol stearate 3 parts, 8 parts, lanolin, ethylene glycol 10 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 15 parts and 20 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 part, carbamylurea 0.5 part, 0.5 part, calcium carbonate, 5 parts, graphite and molybdenumdisulphide 5 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 revs/min again, melting mixing at barrel temperature 190 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 μm.
Embodiment 2
A kind of lubricating grease, with parts by weight, consist of the following composition: 6 parts, aluminium hydroxide, 5 parts, magnesium oxide, white oil 25 parts, trimeric cyanamide 8 parts, ethylene glycol ether acetate 8 parts, pentaerythritol stearate 6 parts, 12 parts, lanolin, ethylene glycol 15 parts, superhigh molecular weight polyethylene fibers 8 parts, silicone oil 20 parts and 25 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.08 part, carbamylurea 1 part, 0.8 part, calcium carbonate, 10 parts, graphite and molybdenumdisulphide 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 150 revs/min again, melting mixing at barrel temperature 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 5 μm.Embodiment 3
A kind of lubricating grease, with parts by weight, consist of the following composition: 4 parts, aluminium hydroxide, 4 parts, magnesium oxide, white oil 20 parts, trimeric cyanamide 6 parts, ethylene glycol ether acetate 6 parts, pentaerythritol stearate 5 parts, 9 parts, lanolin, ethylene glycol 13 parts, superhigh molecular weight polyethylene fibers 7 parts, silicone oil 18 parts and 22 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.07 part, carbamylurea 0.6 part, 0.7 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 12 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 210 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 4 μm.
Embodiment 4
A kind of lubricating grease, with parts by weight, consist of the following composition: 5 parts, aluminium hydroxide, 3 parts, magnesium oxide, white oil 20 parts, trimeric cyanamide 6 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and 22 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm.
Embodiment 5
The preparation method of the lubricating grease of component described in embodiment 1, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 part, carbamylurea 0.5 part, 0.5 part, calcium carbonate, 5 parts, graphite and molybdenumdisulphide 5 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 revs/min again, melting mixing at barrel temperature 190 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 15 parts, ethylene glycol ether acetate 4 parts, pentaerythritol stearate 3 parts, 8 parts, lanolin, ethylene glycol 10 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 15 parts and step 1. 20 parts, gained modified polyacetal powder add in reactor, stir after 1 hour and be cooled to 25 DEG C at 100 DEG C, add 3 parts, aluminium hydroxide again, 2 parts, magnesium oxide, trimeric cyanamide 5 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 1 μm.
Embodiment 6
The preparation method of the lubricating grease of component described in embodiment 2, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.08 part, carbamylurea 1 part, 0.8 part, calcium carbonate, 10 parts, graphite and molybdenumdisulphide 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 150 revs/min again, melting mixing at barrel temperature 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 5 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 25 parts, ethylene glycol ether acetate 8 parts, pentaerythritol stearate 6 parts, 12 parts, lanolin, ethylene glycol 15 parts, superhigh molecular weight polyethylene fibers 8 parts, silicone oil 20 parts and step 1. 25 parts, gained modified polyacetal powder add in reactor, stir after 3 hours and be cooled to 35 DEG C at 150 DEG C, add 6 parts, aluminium hydroxide again, 5 parts, magnesium oxide, trimeric cyanamide 8 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 5 μm.
Embodiment 7
The preparation method of the lubricating grease of component described in embodiment 3, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.07 part, carbamylurea 0.6 part, 0.7 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 12 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 210 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 4 μm;
2. the preparation of lubricating grease: with parts by weight, white oil 20 parts, ethylene glycol ether acetate 6 parts, pentaerythritol stearate 5 parts, 9 parts, lanolin, ethylene glycol 13 parts, superhigh molecular weight polyethylene fibers 7 parts, silicone oil 18 parts and step 1. 22 parts, gained modified polyacetal powder add in reactor, stir after 2 hours and be cooled to 28 DEG C at 120 DEG C, add 4 parts, aluminium hydroxide again, 4 parts, magnesium oxide, trimeric cyanamide 6 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 4 μm.
Embodiment 8
The preparation method of the lubricating grease of component described in embodiment 4, comprises the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 20 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and step 1. 22 parts, gained modified polyacetal powder add in reactor, stir after 2 hours and be cooled to 30 DEG C at 120 DEG C, add 5 parts, aluminium hydroxide again, 3 parts, magnesium oxide, trimeric cyanamide 6 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 3 μm.
The salient features detection data of the embodiment of the present invention 1 ~ 4 gained lubricating grease are as shown in table 1.
The salient features of table 1 embodiment 1 ~ 4 gained lubricating grease detects data
Claims (4)
1. a lubricating grease, it is characterized in that: with parts by weight, consist of the following composition: 3 ~ 6 parts, aluminium hydroxide, 2 ~ 5 parts, magnesium oxide, white oil 15 ~ 25 parts, trimeric cyanamide 5 ~ 8 parts, ethylene glycol ether acetate 4 ~ 8 parts, pentaerythritol stearate 3 ~ 6 parts, 8 ~ 12 parts, lanolin, ethylene glycol 10 ~ 15 parts, superhigh molecular weight polyethylene fibers 5 ~ 8 parts, silicone oil 15 ~ 20 parts and 20 ~ 25 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 ~ 0.08 part, carbamylurea 0.5 ~ 1 part, 0.5 ~ 0.8 part, calcium carbonate, 5 ~ 10 parts, graphite and molybdenumdisulphide 5 ~ 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 ~ 150 revs/min again, melting mixing at barrel temperature 190 ~ 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 ~ 5 μm.
2. a kind of lubricating grease according to claim 1, it is characterized in that: with parts by weight, consist of the following composition: 5 parts, aluminium hydroxide, 3 parts, magnesium oxide, white oil 20 parts, trimeric cyanamide 6 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and 22 parts, modified polyacetal powder;
Described modified polyacetal powder obtains in accordance with the following methods: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm.
3. a preparation method for lubricating grease as claimed in claim 1, is characterized in that: comprise the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.05 ~ 0.08 part, carbamylurea 0.5 ~ 1 part, 0.5 ~ 0.8 part, calcium carbonate, 5 ~ 10 parts, graphite and molybdenumdisulphide 5 ~ 15 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 100 ~ 150 revs/min again, melting mixing at barrel temperature 190 ~ 230 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 1 ~ 5 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 15 ~ 25 parts, ethylene glycol ether acetate 4 ~ 8 parts, pentaerythritol stearate 3 ~ 6 parts, 8 ~ 12 parts, lanolin, ethylene glycol 10 ~ 15 parts, superhigh molecular weight polyethylene fibers 5 ~ 8 parts, silicone oil 15 ~ 20 parts and step 1. 20 ~ 25 parts, gained modified polyacetal powder add in reactor, stir after 1 ~ 3 hour and be cooled to 25 ~ 35 DEG C at 100 ~ 150 DEG C, add 3 ~ 6 parts, aluminium hydroxide again, 2 ~ 5 parts, magnesium oxide, trimeric cyanamide 5 ~ 8 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 1 ~ 5 μm.
4. a preparation method for lubricating grease as claimed in claim 2, is characterized in that: comprise the following steps:
1. the preparation of modified polyacetal powder: with parts by weight, by polyoxymethylene 100 parts, 2,6-di-tert-butyl-4-methy phenol 0.06 part, carbamylurea 0.8 part, 0.6 part, calcium carbonate, 8 parts, graphite and molybdenumdisulphide 10 parts add in high-speed mixer and mix, use vented twin-screw extruder screw speed 120 revs/min again, melting mixing at barrel temperature 200 DEG C, pulverize with pulverizer after extruding pelletization, obtain the modified polyacetal powder that particle diameter is 3 μm;
2. the preparation of lubricating grease: with parts by weight, by white oil 20 parts, ethylene glycol ether acetate 5 parts, pentaerythritol stearate 5 parts, 10 parts, lanolin, ethylene glycol 12 parts, superhigh molecular weight polyethylene fibers 5 parts, silicone oil 18 parts and step 1. 22 parts, gained modified polyacetal powder add in reactor, stir after 2 hours and be cooled to 30 DEG C at 120 DEG C, add 5 parts, aluminium hydroxide again, 3 parts, magnesium oxide, trimeric cyanamide 6 parts, stirs, with colloidal mill grinding, obtain the lubricating grease of median size 3 μm.
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| CN108300547A (en) * | 2018-02-10 | 2018-07-20 | 陈毅忠 | A kind of preparation method of modified expanded graphite plant base cup grease |
| CN112780697A (en) * | 2021-01-13 | 2021-05-11 | 浙江德福精密驱动制造有限公司 | Three-pin shaft assembly with composite roller structure |
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