Check patentability & draft patents in minutes with Patsnap Eureka AI!

A kind of preparation method of high conductivity ceramic material

A high-conductivity, ceramic material technology, applied in the field of composite materials, can solve the problems of high temperature, difficult to cross-link curing precursor, etc., and achieve the effects of high carbon content, easy process control, high electrical conductivity and thermal stability

Active Publication Date: 2021-01-15
BOHAI UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of precursors in the prior art requires higher temperatures, and it is difficult to cross-link and solidify at low temperatures to form stable precursors

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
  • A kind of preparation method of high conductivity ceramic material
  • A kind of preparation method of high conductivity ceramic material
  • A kind of preparation method of high conductivity ceramic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 (sample mark is PMPS-10PHMS-1300)

[0050] (1) Weigh 5g of PMPS, add 0.5g of PHMS, stir the mixture in an ultrasonic wave for 10 minutes, and then put it into a high-energy ball mill for 20 minutes of mixing. The molecular structural formulas of PMPS and PHMS are as follows figure 1 shown.

[0051] (2) Add 0.025g of platinum catalyst (Gelest Company, Morrisville, Pennsylvania, USA) into the mixed solution in (1), continue ball milling for 10min, and then put the mixed solution into an aluminum foil mill.

[0052] (3) The mixed solution obtained in (2) was placed in a vacuum chamber and evacuated for 10 min under a pressure of 10 mmHg to remove air bubbles in the solution.

[0053] (4) Place the sample in an electric blast drying oven at 50°C for 12h for crosslinking, then raise the temperature to 120°C at a rate of 0.5°C / min for 6h, and then cool down to room temperature at a rate of 0.5°C / min.

[0054] (5) Cut the cross-linked sample into a size of 13mm...

Embodiment 2

[0056] Embodiment 2 (sample mark is PVMS-20PHMS-1400)

[0057] (1) Weigh 5g of PVMS, add 1g of PHMS, stir the mixture in an ultrasonic wave for 10 minutes, and then put it into a high-energy ball mill for 20 minutes of mixing. The molecular structural formulas of PVPS and PHMS are as follows figure 1 shown.

[0058] (2) Add 0.15 g of platinum catalyst to the mixed solution in (1), continue ball milling for 10 min, and then put the mixed solution into an aluminum foil mill.

[0059] (3) The mixed solution obtained in (2) was placed in a vacuum chamber and evacuated for 10 min under a pressure of 10 mmHg to remove air bubbles in the solution.

[0060] (4) Place the sample in an electric blast drying oven at 50°C for 12h for crosslinking, then raise the temperature to 120°C at a rate of 0.5°C / min for 6h, and then cool down to room temperature at a rate of 0.5°C / min.

[0061] (5) Cut the cross-linked sample into a size of 13mm×13mm×3mm, put it into a zirconia crucible, and wrap...

Embodiment 3

[0063] Embodiment 3 (sample mark is PDMS-15PHMS-1400)

[0064] (1) Weigh 5g of PDMS, add 0.75g of PHMS solution, stir the mixture in an ultrasonic wave for 10 minutes, and then put it into a high-energy ball mill for 20 minutes of mixing. The molecular structural formulas of PDPS and PHMS are as follows figure 1 shown.

[0065] (2) Add 0.075g of platinum catalyst to the mixed solution in (1), continue ball milling for 10min, and then put the mixed solution into an aluminum foil mill.

[0066] (3) The mixed solution obtained in (2) was placed in a vacuum chamber and evacuated for 10 min under a pressure of 10 mmHg to remove air bubbles in the solution.

[0067] (4) Place the sample in an electric blast drying oven at 50°C for 12h for crosslinking, then raise the temperature to 120°C at a rate of 0.5°C / min for 6h, and then cool down to room temperature at a rate of 0.5°C / min.

[0068] (5) Cut the cross-linked sample into a size of 13mm×13mm×3mm, put it into a zirconia crucibl...

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

No PUM Login to View More

Abstract

The invention discloses a preparation method of a high-conductivity ceramic material, comprising: 1) mixing a polysiloxane precursor with a crosslinking agent polymethylhydrogensiloxane (PHMS), stirring evenly, and putting it into a high-energy ball mill Processing to obtain a mixed solution; 2) adding a platinum catalyst to the mixed solution, and continuing ball milling until uniformly mixed to obtain a mixed solution; 3) removing the bubbles in the mixed solution described in step 2); 4) treating step 3) The mixed solution was placed in a drying oven, cross-linked at 40-60°C for 8-16h, then gradiently heated to 120°C, kept for 4-8h, and then gradiently cooled to room temperature to obtain a cross-linked sample; 5) the cross-linked The combined sample is placed in a zirconia crucible and placed in a horizontal tubular heating furnace; 6) pyrolyzed at high temperature under an inert atmosphere. The method has simple operation, easy process control, mild synthesis conditions, and a preparation period suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for preparing SiOC ceramic materials with high conductivity. Background technique [0002] The traditional production of ceramic materials is based on a certain composition of powder as raw material through film pressing and sintering. In recent years, polymer precursors have been used to produce advanced ceramics. Compared with traditional preparation methods, the transformation of precursors to prepare SiOC ceramics has the advantages of low pyrolysis temperature, molecular designability, and performance controllability. Traditional powder processing is much lower. Compared with precursors such as polycarbosilane and polysilazane, the price of polysiloxane is low, and SiOC ceramics with excellent performance can be obtained by pyrolysis in an inert atmosphere, which is a low-cost manufacturing high-performance Ideal precursors for ceramic materials. [0...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/56C04B35/622C04B35/634
CPCC04B35/56C04B35/622C04B35/62222C04B35/634
Inventor 赵玉峰王力霞
Owner BOHAI UNIV
Features
  • R&D
  • 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