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Rare earth modified medical stone powder with conductivity and preparation method thereof

A technology of rare earth modification and medical stone powder, which is applied in the field of rare earth modified medical stone conductive powder materials and its preparation, can solve problems such as cost, processing difficulty, and application restrictions, and achieve high cost performance, strong market competitiveness, and eliminate Effects of Environmental Pollution

Active Publication Date: 2015-10-28
齐齐哈尔市碾子山区电子商务孵化中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, metal powder, carbon black, graphite, carbon fiber, metal flake or fiber, metal oxide, etc., which are widely used at present, are limited in application due to factors such as oxidation, cost, and processing difficulties.

Method used

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  • Rare earth modified medical stone powder with conductivity and preparation method thereof
  • Rare earth modified medical stone powder with conductivity and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] After the infiltration furnace is heated up to 700°C, drop methanol into the furnace for 10 minutes to remove the air in the furnace; then place the medical stone powder in the infiltration furnace; drop it into the furnace at a rate of 60 drops per minute Add 5wt.% La element-containing expansion solution for 5 hours to obtain medical stone powder conductive powder, and its room temperature resistivity is 4.0×10 4 Ω m, X-ray diffraction (XRD) spectrum as figure 1 shown. from figure 1 It can be seen that the rare earth elements have penetrated into the medical stone powder, and chemically reacted with the constituents of the medical stone to form LaTi 9 o 24 And other new compounds containing rare earth elements lead to significant enhancement of electrical conductivity of medical stone powder.

Embodiment 2

[0028] After the infiltration furnace is heated up to 700°C, drop methanol into the furnace for 10 minutes to remove the air in the furnace; then place the medical stone powder in the infiltration furnace; drop it into the furnace at a rate of 80 drops per minute Dropping 4wt.% Er-containing expansion solution for 4 hours, the medical stone powder conductive powder can be obtained, and its room temperature resistivity is 7.2×10 4 Ω m, the scanning electron microscope (SEM) image of the obtained powder is shown in figure 2 shown. from figure 2 It can be seen from the figure that the powder particles are fine and the pores are obvious. According to energy spectrum (EDS) analysis, the content of Er in rare earth modified medical stone conductive powder is 9.69 wt.%.

Embodiment 3

[0030] After the infiltration furnace is heated to 650°C, drop methanol into the furnace for 10 minutes to remove the air in the furnace; then place the medical stone powder in the infiltration furnace; drip into the furnace at a rate of 60 drops per minute Add 5wt.% Ce-containing infiltration solution for 5 hours to obtain medical stone powder conductive powder, and its room temperature resistivity is 1.2×10 4 Ω·m. Its appearance is similar to figure 2 shown.

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Abstract

The present invention discloses a rare earth modified medical stone powder with conductivity and a preparation method thereof. The rare earth modified medical stone powder is prepared from medical stone and rare earth elements, and the content of rare earth element is 9-10 wt.%. The specific preparation method is as follows: (1) raising the temperature of a furnace requiring permeation to a preset temperature of 650-700 DEG C, and dropwise adding methanol solution into the furnace to eliminate air furnace; (2) placing the medical stone powder into an permeation furnace; (3) dropwise adding a permeation liquid containing rare earth elements into the furnace at a speed of 60 to 80 drops per minute for 4-5 h, so as to obtain the medical stone conductive powder. The invention uses vapor rare chemical thermal permeation method for permeation of La, Ce, Er and other rare earth elements into medical stone powder material; XRD analysis confirms that rare earth elements have infiltrated into the medical stone powder material, and react with the components of the medical stone to produce a compound containing rare earth elements, thereby significantly increasing the conductivity of medical stone powder.

Description

technical field [0001] The invention relates to a novel inorganic functional material and a synthesis method thereof, in particular to a rare earth modified medical stone conductive powder material and a preparation method thereof. Background technique [0002] As an important functional material, powder materials with conductive properties are widely used in coatings, adhesives, electronics, electrical appliances, aviation, chemicals, printing, packaging, ships, military and other fields, for the production of conductive coatings, antistatic Coatings, conductive adhesives, conductive plastics, conductive rubber, conductive static paper, electronic components, electrical equipment casings, printed circuit boards, etc. However, metal powder, carbon black, graphite, carbon fiber, metal flake or fiber, and metal oxide, which are widely used at present, are limited in application due to factors such as oxidation, cost, and processing difficulties. It is of great application sig...

Claims

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Application Information

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IPC IPC(8): C04B41/00
Inventor 郝素娥张加静高洋殷艳珍李妍肖丽
Owner 齐齐哈尔市碾子山区电子商务孵化中心
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