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Preparation method of wide-range fluorine grease

A production method and technology of fluorine oil, which are used in lubricating compositions, petroleum industry, etc., can solve the problems of unsatisfactory friction performance indicators, high temperature performance indicators, easy cracking, oil separation, and poor grease-forming state.

Pending Publication Date: 2022-08-05
深圳市艾仑宝润滑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] According to the survey, there are many technical deficiencies in the existing fluorine oil and fluorine grease production technology, which leads to the product ① after being placed for a short time, it is extremely easy to crack and oil separation, and the state of fat formation is very bad; ② The friction performance index and high temperature performance index are not ideal. continue to improve

Method used

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  • Preparation method of wide-range fluorine grease
  • Preparation method of wide-range fluorine grease
  • Preparation method of wide-range fluorine grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment 1 (also includes four specific embodiments 1A, 2A, 3A, and 4A, only the material selection is different) adopts the method of comparing with the other two embodiment cases 1B and 1C at the same time. Among them, 1B adopts the exact same material as 1A in this embodiment, and does not adopt the temperature-programmed method in the production process; and 1C adopts the completely same temperature-programmed method as in the first embodiment, but the material ratio is changed. The specific parameters are shown in Table 1 below.

[0031] Table 1

[0032]

[0033]

[0034] Wherein, the curve of the gradient temperature programming of the in-situ reaction in the first embodiment is completely in accordance with the figure 1 set up. Among them, the debridement activation stage is the BC section, and the temperature / time is 110 °C / 3h; the CD section is the natural temperature rise stage; the grafting modification stage is the DE section, and the temperat...

Embodiment 2

[0038] Similarly, the second embodiment is used for comparison test with another implementation case 2B. Among them, 2B adopts the exact same temperature programming method as in Example 2, but the material does not contain debridement activator, modified treatment agent and catalyst.

[0039]The material ratio of each embodiment and technology are shown in table 2 below

[0040] Table 2

[0041]

[0042] Wherein, the gradient temperature-programmed curve of the in-situ reaction in the present embodiment is completely in accordance with figure 1 set up. Among them, the debridement activation stage is the BC section, and the temperature / time is 100 °C / 5h; the CD section is the natural temperature rise stage; the grafting modification stage is the DE section, and the temperature / time is 250 °C / 2h.

[0043] It can be seen from the test that the product of Comparative Example 2B is easy to crack, while the product of Example 2 prepared by the method of the present invention ...

Embodiment 3

[0045] Similarly, the third embodiment is compared with another implementation case 3B. Among them, 3B adopts the same material as in Example 3, but there is no segmented temperature rise.

[0046] The material proportioning and technology of each embodiment are shown in the following table 3

[0047] table 3

[0048]

[0049] Wherein, the gradient temperature-programmed curve of the in-situ reaction in the present embodiment is completely in accordance with figure 1 set up. Among them, the debridement activation stage is the BC section, and the temperature / time is 120 °C / 1h; the CD section is the natural temperature rise stage; the grafting modification stage is the DE section, and the temperature / time is 150 °C / 5h.

[0050] Comparing Example 3B, there is no staged temperature rise. BC segment, CD segment, DE segment: all at 120°C, kept for 6 hours.

[0051] The test shows that the product of Comparative Example 3B is easy to crack, while the product of Example 3 prep...

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Abstract

The invention relates to a preparation method of wide-range fluorine grease. Fluorine-containing base oil is used as a carrier, a surface defect site of fluorine-containing micro powder is used as an anchor point, a surface debridement activator, a surface modification treating agent and a catalyst are combined, gradient programmed heating and in-situ reaction are performed for 2-10 h at the temperature of 100-250 DEG C, then cooling and grinding are performed, and the fluorine-free oil, fluorine-free powder and cracking-free wide-range fluorine grease product is prepared. The method has the advantages of mild process conditions, simplicity, easiness in implementation, easily available raw materials, good grease forming effect, suitability for industrial large-scale production and very wide market application prospect.

Description

technical field [0001] The invention relates to a preparation method of a wide range of fluorine grease, in particular to a method for realizing the preparation of fluorine grease by using any fluorine oil as a carrier and simultaneously performing in-situ surface modification on any fluorine powder. Background technique [0002] Fluorine oil Fluorine grease, referred to as "fluorine grease", is a kind of special grease product made by thickening fluorine-containing base oil with fluorine-containing micropowder. Among them, fluorine-containing micropowder (referred to as "fluorine powder") commonly used polytetrafluoroethylene micropowder (PTFE), fluorinated graphite, fluorinated graphene, etc.; fluorine-containing base oil (referred to as "fluorine oil"), as a production carrier, commonly used There are perfluorocarbon oil, fluorochlorocarbon oil, perfluoropolyether oil (PFPE, which can be subdivided into K type, Y type, D type, Z type, etc.), perfluorosilicone oil, etc. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/02C08G81/02C08G83/00C10N30/06
CPCC10M169/02C08G81/025C08G83/001C10M2213/0606C10M2213/023C10M2229/0515C10M2213/0626C10M2229/051C10M2213/046C10M2201/0426C10M2201/145C10N2030/06
Inventor 杨发达代书雷何继军
Owner 深圳市艾仑宝润滑材料有限公司
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