Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 powder [CN 101012553 A], but these powders are irregular in shape, which has a great influence on the mechanical properties of polymer materials, and the composite material also has the risk of peeling off

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Take 500 grams of dried coal gasification fine slag, and after calcination at 700°C for 3 hours in a muffle furnace to remove carbon, dissolve it in 15% hydrochloric acid solution at a solid-to-liquid ratio (g / ml) of 1:5 Leach in medium acid for 5 hours, then filter with suction, wash and dry, pass through a 200-mesh standard sieve, and the silicon-aluminum microbead powder under the sieve is ready for use. The specific surface area of ​​the powder is 76.41m 2 / g, a large number of pores appear in the microbeads, and the powder density becomes smaller.

[0041] 2. Take 5 g of the sieved silica-alumina glass microbead powder and place it in 100 ml of distilled water, stir in a water bath at 30°C to form a suspension, and slowly add the doped SbCl 3 0.1mol / L of SnCl 4 4H 2 9 ml of multi-ion hydrochloric acid mixed solution of O (the molar ratio of Sn / Sb is 5:1), and at the same time, dropwise add 20% NaOH solution to keep the pH of the solution in the range of 1-1.5,...

Embodiment 2

[0045] 1. Take 500 grams of dried coal gasification fine slag, and after calcination at 700°C for 3 hours in a muffle furnace to remove carbon, dissolve it in 20% hydrochloric acid solution at a solid-to-liquid ratio (g / ml) of 1:4 Leach in medium acid for 4 hours, then filter with suction, wash and dry, pass through a 200-mesh standard sieve, and the silica-alumina microbead powder under the sieve is ready for use. The specific surface area of ​​the powder is 119.52m 2 / g, the number of pores in the microbeads increases continuously.

[0046] 2. Take 5 g of the sieved silica-alumina glass microbead powder and place it in 100 ml of distilled water, stir in a water bath at 50°C to form a suspension, and slowly add the doped SbCl 3 0.1mol / L of SnCl 4 4H 2 O hydrochloric acid multi-ion mixed solution 18ml (the molar ratio of Sn / Sb is 8: 1), while adding 20% ​​NaOH solution dropwise to keep the pH of the solution in the range of 2-2.5, stir for 2.5h after the titration is complet...

Embodiment 3

[0050] 1. Take 500 grams of dried coal gasification fine slag, and after calcination at 700°C for 3 hours in a muffle furnace to remove carbon, dissolve it in 30% hydrochloric acid solution at a solid-to-liquid ratio (g / ml) of 1:4 Leach in medium acid for 4 hours, then suction filter, wash and dry, pass through a 200-mesh standard sieve, and the silicon-aluminum microbead powder under the sieve is ready for use. The specific surface area of ​​the powder is 158.57m 2 / g, the porosity reaches the maximum, the powder is loose and easy to fly out, and the density drops obviously.

[0051] 2. Take 5 g of the sieved silica-alumina glass microbead powder and place it in 100 ml of distilled water, stir in a water bath at 80°C to form a suspension, and slowly add the doped SbCl 3 0.1mol / L of SnCl 4 4H 2 O hydrochloric acid multi-ion mixed solution 22.5ml (the molar ratio of Sn / Sb is 7:1), while adding dropwise 20% NaOH solution to keep the pH of the solution in the range of 1-1.5, st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com