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Dual composite lithium-based lubricating grease and preparation method thereof

A lithium-based grease and double-composite technology, applied in the field of lithium-based grease, can solve the problems of increasing production costs, affecting the quality and performance of composite lithium-based grease, and high soap content in composite lithium-based grease, so as to reduce soap content, Effect of improving quality performance and reducing production cost

Active Publication Date: 2015-01-28
XINXIANG HENGXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are single-composite lithium-based greases on the market, that is, there is only one composite structure in each lithium-based grease molecule, which will affect the quality and performance of the lithium-composite grease. In addition, the soap content of the lithium-complex grease is relatively high. high, which increases the production cost to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) Preparation of additives, put 90kg of zinc dialkyldithiophosphate and 10kg of tetraethylenetriamine into the reaction kettle, mix and heat to 100°C, saponify for 100min, then add 1kg of tert-octanol, saponify for 100min, cool down to 90°C, then add 5kg benzotriazole, 1kg barium dinonylnaphthalene sulfonate, 3kg dodecenyl succinic acid and 7kg chlorobromoalkyl phosphate successively, stir until completely dissolved, cool, filter, refine Make an additive; (2) Add 10kg of mineral oil into the saponification kettle, then add 6kg of dodecyl hydroxystearic acid and 4kg of stearic acid into the saponification kettle, and start stirring after the fatty acid is dissolved; (3) 2.5 kg lithium hydroxide is dissolved in water to form a lithium hydroxide solution with a mass concentration of 30%, and 0.3 kg of calcium hydroxide is dissolved in water to form a calcium hydroxide solution with a mass concentration of 30%. When the mixed solution in step (2) heats up When the tempera...

Embodiment 2

[0013] (1) Preparation of additives, put 80kg of zinc dialkyl dithiophosphate and 5kg of tetraethylenetriamine into the reaction kettle, mix and heat to 90°C, saponify for 60min, then add 0.5kg of tert-octanol, saponify for 60min, cool down to 80°C, then sequentially add 3kg benzotriazole, 0.5kg barium dinonylnaphthalenesulfonate, 1kg dodecenylsuccinic acid and 5kg chlorobromoalkyl phosphate, stir until completely dissolved, cool, and filter , refined into additives; (2) Add 8kg of synthetic oil into the saponification kettle, then add 5kg of dodecyl hydroxystearic acid and 3kg of stearic acid into the saponification kettle, and start stirring after the fatty acid is dissolved; (3) Dissolve 2kg of lithium hydroxide in water to form a lithium hydroxide solution with a mass concentration of 30%, and dissolve 0.2kg of calcium hydroxide in water to form a calcium hydroxide solution with a mass concentration of 30%. When the mixed solution in step (2) When the temperature rises to ...

Embodiment 3

[0015] (1) Preparation of additives, put 99kg of zinc dialkyldithiophosphate and 15kg of tetraethylenetriamine into the reaction kettle, mix and heat to 120°C, saponify for 120min, then add 1.5kg of tert-octanol, saponify for 120min, cool down to 100°C, then add 8kg benzotriazole, 1.5kg dinonyl naphthalene barium sulfonate, 7kg dodecenyl succinic acid and 10kg chlorobromoalkyl phosphate successively, stir until completely dissolved, cool and filter , refined into additives; (2) 12kg of ether oil was added to the saponification kettle, then 7kg of dodecyl hydroxystearic acid and 5kg of stearic acid were added to the saponification kettle, and the stirring was started after the fatty acid was heated up to dissolve; (3 ) Dissolving 3kg lithium hydroxide in water to form a lithium hydroxide solution with a mass concentration of 30%, dissolving 0.4kg calcium hydroxide in water to form a calcium hydroxide solution with a mass concentration of 30%, when the mixing in step (2) When th...

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Abstract

The invention discloses dual composite lithium-based lubricating grease and a preparation method thereof. According to the technical scheme, the dual composite lithium-based lubricating grease is prepared from the following raw materials in parts by weight: 24-36 parts of base oil, 5-7 parts of 12-hydroxystearic acid, 3-5 parts of stearic acid, 2-3 parts of lithium hydroxide, 0.2-0.4 part of calcium hydroxide, 0.4-0.6 part of boric acid, 0.5-1.5 parts of azelaic acid, 0.5-1.5 parts of phosphodiester, 1-1.4 parts of polybutylene terephthalate and 1.9-2 parts of additive. Functional groups in lithium-based lubricating grease molecules are sufficiently utilized, and a composite structure is added in each molecule when a composite structure is preserved, so that the quality of the composite lithium-based lubricating grease is improved, meanwhile, the soap component of the lithium-based lubricating grease is reduced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of lithium-based lubricating grease, and in particular relates to a double-composite lithium-based lubricating grease and a preparation method thereof. Background technique [0002] Lithium-based grease is the most widely used grease variety in the world. There are also many varieties of lithium-based grease, which can be divided into general-purpose lithium-based grease and complex lithium-based grease according to the process. General-purpose lithium-based grease is generally used in normal temperature and pressure bearings such as automobiles, excavation equipment, and general mechanical equipment such as machine tools. Composite lithium-based grease is based on the production process of general-purpose lithium-based grease by adding a composite process, which makes the molecular structure of lithium-based grease more complex, so that the composite lithium-based grease has a higher performance than gener...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10N50/10C10N30/06C10N30/10
Inventor 张守鹏周忠太时红敏王利霞宋尚珍庞静
Owner XINXIANG HENGXING TECH CO LTD
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