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Preparation method of cerium-doped muscovite composite powder

A composite powder and muscovite technology, which is applied in lubricating compositions, petroleum industry, thickeners, etc., can solve problems such as difficulty in further improving tribological properties, and few research reports on layered silicate composite powder tribology , to achieve the effect of increasing the consistency

Inactive Publication Date: 2018-03-23
SHAANXI JUJIEHAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the tribological research on layered silicate powder is mainly concentrated in single powder and lubricating oil system, and there are few reports on tribological research on layered silicate composite powder.
A single powder additive material is often limited by its own physical and chemical properties, and it is difficult to further improve its tribological properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation method of a cerium-doped muscovite composite powder according to the present invention comprises the following preparation steps:

[0019] (1) Mix cerium nitrate hexahydrate, oxalic acid dihydrate and muscovite in a planetary ball mill in a certain proportion, and the ratio of ball to material is about 5:1;

[0020] (2) A certain amount of ethanol is used as a grinding aid, ball-milled at 250-400 r / min and room temperature for 4 hours, the product is filtered and the washing agent is dried and dried at 100-150 ℃ to obtain the precursor;

[0021] (3) The precursor is calcined at 500-450 °C in a muffle furnace, kept at a constant temperature for 2 hours, and finely ground after cooling in the furnace to prepare a rare earth cerium-doped muscovite composite powder Ce-MC;

[0022] (4) Take lithium-based soap and base oil, add 2 / 3 of the mass of MVI500 base oil and lithium dodecyl stearate to the reaction kettle, stir and heat up until the pre-made soap and b...

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PUM

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Abstract

The invention relates to a preparation method of cerium-doped muscovite composite powder. The preparation method comprises the preparation step of mixing cerium nitrate hexahydrate, oxalic acid dihydrate and muscovite in a planetary ball mill according to certain proportions, wherein the ball-material ratio is about 5:1. The cerium-doped muscovite composite powder prepared by the method providedby the invention can increase the consistency of lithium-based grease and has little influence on a soap fiber structure of the lithium-based grease.

Description

technical field [0001] The invention relates to a preparation method of a cerium-doped muscovite composite powder. Background technique [0002] Combining micro-nano silicate powder with lubrication technology to prepare lubricating materials with anti-friction and anti-wear functions has become a research hotspot in the fields of friction, lubrication and materials in recent years. There are van der Waals forces and hydrogen bonds between the layered silicate layers. When subjected to shear stress, it is easy to slide along the layer to generate unsaturated bonds, which brings strong chemical activity and has the structural advantage as a friction-reducing material. Silica-like silicate mineral powder has the advantages of low cost, comprehensive functions, and pollution-free use. It is a kind of solid lubricating material with great development potential. The study found that layered silicate powders such as serpentine, attapulgite, muscovite, etc., as lubricant additives...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M169/02C10M113/10C10M125/26C10N30/06C10N50/10C10N30/02
CPCC10M113/10C10M125/26C10M169/02C10M169/06C10M2201/103C10M2201/1036C10M2203/1006C10M2207/1446C10N2030/02C10N2030/06C10N2050/10C10N2010/02
Inventor 李长英
Owner SHAANXI JUJIEHAN CHEM CO LTD
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