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Nano super paramagnetic material and preparation method thereof

A superparamagnetic and nanotechnology, applied in chemical instruments and methods, magnetic liquids, dissolution, etc., can solve the problems of high cost and large surfactant dosage, and achieve the effect of low cost, small dosage and simple process

Inactive Publication Date: 2006-11-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The amount of surfactant used in this patent is too large, and the ultrafine magnetic material is directly used as raw material, and the cost is high

Method used

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  • Nano super paramagnetic material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] At 90°C, mix 50g minus three-line dewaxed oil with 1gSP-80 evenly, heat 940g manganese nitrate hexahydrate to 90°C and melt, then add the melted manganese nitrate to the above mixture, mix for 15 minutes until uniformly formed into a supersolubilized gel body, and finally dehydrated at 150° C. for 3 hours, that is, the nano superparamagnetic material of this embodiment.

Embodiment 2-4

[0037] According to the formula of Example 2-4 in Example 1 Condition Table 2, it is the nanometer superparamagnetic material of Example 2-4.

[0038] Example

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Abstract

The invention discloses a nanometer superparamagnetism material, which comprises the following parts: 81.0-95.0 percent inorganic salt, 3.0-15.0 percent hydrocarbons, 0.2-3.0 percent emulsifier, 0-1.0 percent emulsion-auxiliary agent. The making method comprises the following steps: adding the fused inorganic salt in the hydrocarbons and emulsifier to blend evenly at 20-250 deg.c to produce the product; fitting for hydromagnetics and other domains.

Description

technical field [0001] The invention relates to a magnet material and a preparation method thereof, in particular to a nanoscale superparamagnetic semi-solid material and a preparation method thereof. Background technique [0002] Magnetic fluid is a very stable and magnetic colloidal system obtained by dispersing strong magnetic nanoparticles into the liquid phase. It combines the magnetism of solids with the rheology of liquids, presenting many special magnetic, optical, and electrical properties. Phenomenon. Therefore, in recent years, aerospace, military technology, optical fiber communication, petrochemical, medical machinery, food machinery, tobacco equipment, textiles, transportation, etc. have been widely used. [0003] In 1965, NASA developed iron oxide magnetic fluid for the sealing of astronaut's hat. This magnetic fluid is made by dispersing nano magnetic powder in kerosene with oleic acid as surfactant. A water-based magnetic fluid is disclosed in DE19516323A1...

Claims

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Application Information

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IPC IPC(8): H01F1/44B01F23/10C09K23/00
Inventor 王鼎聪
Owner CHINA PETROLEUM & CHEM CORP
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