Method for preparing composite conductive filler by using fine coal gasification slag and prepared filler

A composite conductive and coal gasification technology, which is used in the preparation of composite conductive fillers and in the field of composite conductive fillers, can solve the problems of the mechanical properties of polymer materials, the peeling of composite materials, and the irregular shape of powder, and achieve stable physical and chemical properties. The effect of firm coverage and low density

Pending Publication Date: 2022-04-12
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

People such as Yuan Guoliang prepared silicon oxide composite conductive powder [CN 108034934 A] by copper plating method, people such as Zhang Haiyan prepared silver-plated Fe 3 o 4 Conductive powd

Method used

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  • Method for preparing composite conductive filler by using fine coal gasification slag and prepared filler
  • Method for preparing composite conductive filler by using fine coal gasification slag and prepared filler
  • Method for preparing composite conductive filler by using fine coal gasification slag and prepared filler

Examples

Experimental program
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Effect test

Example Embodiment

[0039] Example 1

[0040] 1. Take 500 grams of dry gasified fine fountain after drying, after calcination of 3 hours in a muffle furnace, then remove carbon, a solid-liquid ratio (g / ml) of 1: 5 is 15% hydrochloric acid solution. His acid is extracted for 5 h, then filtrate, washed and dried, over 200 target quasi-screen, sieve the silicone microbead powder, the powder specific surface area is 76.41m 2 / g, there is a large number of pores in the microbead, and the powder density is small.

[0041] 2. After the sieve, the silicone glass bead powder 5g is placed in 100 mL of distilled water, and stirred in a water bath in 30 ° C to form a suspension, slowly dropped SBCl. 3 0.1mol / L SNCL 4 · 4h 2 The hydrochloric acid polyionic mixture was 9 ml (Sn / Sb molar ratio of 5: 1), and a 20% NaOH solution was added dropwise to the solution pH in the range of 1-1.5, and the titration was stirred after 1 h and stirred the hydrolysis reaction. .

[0042] 3. Wash the reaction after the reac...

Example Embodiment

[0044] Example 2

[0045] 1. Take 500 grams of dry gasified fountain after drying, after 700 ° C high temperature calcination of 3 hours in a muffle, a solid-liquid ratio (g / ml) of 1: 4 is 20% hydrochloric acid solution. Chinese acid is extracted for 4 h, then filtrate, washed and dried, over 200 target quasi-screen, sieve the silicone microbead powder, the powder specific surface area is 119.52m 2 / g, the number of pores in the microbeads is increasing.

[0046] 2. After the sieve, the silicone glass bead powder 5g is placed in 100 mL of distilled water, stirred in a water bath in 50 ° C to form a suspension, slowly dropped SBCL. 3 0.1mol / L SNCL 4 · 4h 2 The hydrochloric acid polyionic mixture was 18 mL (Sn / Sb molar ratio of 8: 1), and 20% of the NaOH solution was added dropwise to the solution pH in the range of 2-2.5, and the titration was stirred after 2.5 h to react full.

[0047] 3. Wash the reaction after the reaction, remove the filtration, and eliminate the use of ...

Example Embodiment

[0049] Example 3

[0050] 1. Take 500 grams of dry gasified fine fragments after drying, after 700 ° C high-temperature calcination of 3 hours in a muffle furnace, a solution of solid-liquid ratio (g / ml) of 1: 4 is 30% hydrochloric acid solution. Chinaic acid is extracted for 4 h, then filtrate, washed and dried, over 200 target quasi-screen, sieve the silicone microbead powder, the powder specific surface area is 158.57m 2 / g, the porosity reaches the maximum, the powder is loose and easy to fly, the density is significantly reduced.

[0051] 2. After the sieve, the silicone glass bead powder 5g is placed in 100 mL of distilled water, and stirred in a water bath in 80 ° C to form a suspension, slowly drop the SBCL. 3 0.1mol / L SNCL 4 · 4h 2 The hydrochloric acid polyionic mixture of hydrochloride (Sn / Sb is 7: 1), and a 20% NaOH solution is added dropwise to the solution pH in the range of 1-1.5, and the titration is stirred after 2.5 h. The reaction is sufficient.

[0052] ...

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Abstract

The invention discloses a method for preparing a composite conductive filler by using fine coal gasification slag and the prepared composite conductive filler, and the method comprises the following steps: (1) roasting the fine coal gasification slag to remove carbon, carrying out hydrochloric acid dissolution treatment, and carrying out solid-liquid separation, washing and drying to obtain porous siliceous microbeads generated by the fine coal gasification slag; (2) putting the porous siliceous microbeads prepared in the step (1) into distilled water, stirring to form a suspension, then continuously stirring, and gradually adding a multi-ion mixed solution of SnCl4.H2O doped with SbCl3 into the suspension according to the addition amount that the mass of a precipitation product generated by hydrolysis of chlorine salt of Sn and Sb reaches 5-30% of the mass of the porous siliceous microbeads; and (3) after the mixed solution is added, continuously stirring to enable the hydrolysis reaction to be sufficient, then carrying out solid-liquid separation on the suspension, washing to remove Cl ions in a solid phase, drying and calcining to obtain the product. The prepared composite conductive powder is light in color and low in cost, can be widely used as conductive filler, and has dual significance in resources and environments.

Description

technical field [0001] The invention relates to the preparation of a composite conductive filler using coal-based solid waste as a matrix, in particular to a method for preparing a composite conductive filler using coal gasification fine slag and the prepared composite conductive filler, which belongs to the conductive material technology field. Background technique [0002] In recent years, with the deepening of people's understanding of electrostatic hazards, anti-static materials have played an increasingly important role. Anti-static materials are to take a series of measures to prevent electrostatic discharge from causing harm to products and personal safety by reducing or eliminating the frictional charge generated during the handling and use of products, so as to achieve the purpose of protection. At present, anti-static materials have been widely used in many fields such as microelectronics, electrical products, military security, and aerospace. [0003] Conductive...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B3/70B09B3/40B09B3/80C03C12/00C01G19/02B09B101/55
CPCY02W30/82
Inventor 魏存弟张今壹蒋引珊琚安坤
Owner JILIN UNIV
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