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Preparation method of nano-conducting attapulgite material

A technology of nano-conductivity and nano-attapulgite, applied in the direction of conductive materials, conductive materials, nano-structure manufacturing, etc., can solve the problems of high production costs, restrictions on large-scale use, high prices of fibrous inorganic conductive materials, and achieve low production costs , good conductivity and simple preparation method

Inactive Publication Date: 2007-07-18
JIANGSU POLYTECHNIC UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process route of artificially synthesizing fibrous core materials is long and the production cost is high, resulting in the high price of fibrous inorganic conductive materials prepared on this basis, which limits large-scale use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: the natural attapulgite mineral is added into deionized water having a mass ratio of attapulgite to 1% sodium hexametaphosphate, and prepared into a suspension containing attapulgite 10 g / L, ultrasonically dispersed for 1 h, Stand still for 5h; spray-dry the obtained nano-attapulgite dispersion, and then heat-treat at 420°C for 8.0h; place the nano-attapulgite after the first drying and heat treatment -1 In the hydrochloric acid solution, carry out surface activation at 0°C for 24h, and then ultrasonically disperse for 0.5h; adjust the pH value of the nano-attapulgite slurry after surface activation and ultrasonically dispersed to 1.0, raise the temperature to 90°C, and , drop 0.4mol·L -1 Hydrochloric acid mixture of tin tetrachloride and antimony trichloride, m(SnCl 4 ·5H 2 O) / m(SbCl 3 )=5, while adding 2.0mol·L dropwise -1 Sodium hydroxide solution, in order to keep the pH value of the solution basically unchanged, add SnO dropwise within 3h 2 The t...

Embodiment 2

[0023] Example 2: Add the natural attapulgite mineral into the deionized water with ammonium polyacrylate having a mass ratio of 8% to the attapulgite, prepare a suspension containing attapulgite 120g / L, and disperse at a high speed for 5 hours with an emulsifier , let stand for 100h; spray-dry the obtained nano-attapulgite dispersion, and then heat-treat at 600°C for 1h; place the nano-attapulgite after drying and heat treatment in 2.0mol·L -1 In the hydrochloric acid solution, carry out surface activation at 100°C for 1h, and then use an emulsifier to mechanically disperse at a high speed for 5h; adjust the pH value of the attapulgite slurry after surface activation and mechanical dispersion to 2.5, and adjust the temperature to 60°C. Under stirring conditions, dropwise add 0.4mol·L -1 Hydrochloric acid mixture of tin tetrachloride and antimony trichloride, m(SnCl 4 ·5H 2 O) / m(SbCl 3 )=30, while adding 2.0mol·L dropwise -1 Potassium hydroxide solution, in order to keep t...

Embodiment 3

[0024] Example 3: Add natural attapulgite minerals into sodium pyrophosphate deionized water with a mass ratio of 3% to attapulgite to prepare a suspension containing attapulgite 80 g / L, and disperse at a high speed for 3 hours with an emulsifier , let stand for 30h; the obtained nano-attapulgite dispersion was spray-dried, and then heat-treated at 450°C for 2h; the nano-attapulgite after the first drying and heat treatment was placed in 1.6mol·L -1In the hydrochloric acid solution, conduct surface activation at 70°C for 2h, and then ultrasonically disperse for 1h; adjust the pH value of the attapulgite slurry after surface activation and ultrasonic dispersion to 1.5, adjust the temperature to 75°C, and , drop 0.3mol·L -1 Hydrochloric acid mixture of tin tetrachloride and antimony trichloride, m(SnCl 4 ·5H 2 O) / m(SbCl 3 )=10, while adding 2.0mol·L dropwise -1 Ammonia solution, in order to keep the pH value of the solution basically unchanged, add SnO dropwise within 8h 2 ...

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Abstract

A method for preparing conductive concave-clay nanomaterial includes scattering concave-clay aggregate to be concave-clay bar nanocrystal, using concave-clay bar nanocrystal as core to clad a layer of conductive compound precursor on surface of said nanocrystal by utilizing chemical coprecipitation technique and using high temperature doping to form new one-dimensional conductive concave-clay nanomaterial.

Description

technical field [0001] The invention relates to the technical field of inorganic functional materials, in particular to a preparation method of a nano conductive attapulgite material. Background technique [0002] Currently, commonly used conductive powders include metal-based powders and carbon-based powders. These two kinds of conductive powders have certain defects and are limited in application. Although various metal powders have strong conductivity, except for silver powder, aluminum, nickel, copper and other powders are easy to oxidize and have poor corrosion resistance, while the price of silver powder is relatively high. In addition, metal powders generally have a large specificity and are easy to sink to the bottom and agglomerate, so the dispersibility is not good. Although carbon-based conductive powder has good conductivity and good stability, it is difficult to disperse evenly, especially the color of the product is black, which is not liked by people. There...

Claims

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Application Information

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IPC IPC(8): H01B1/00H01B13/00C08K7/00C08K9/00B22F1/02B82B3/00
Inventor 姚超陈志刚王车礼李效棠王德江傅家绪张良
Owner JIANGSU POLYTECHNIC UNIVERSITY
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