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A kind of high-entropy zirconate inorganic fiber and preparation method thereof

A technology of inorganic fiber and zirconate, which is applied in the fields of fiber chemical characteristics, textiles and papermaking, can solve the problems of no high-entropy oxide fiber and lack of preparation experience, and achieve stable and reliable sol, simple process and complete fiber shape Effect

Active Publication Date: 2022-08-09
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although people have done a lot of research on high-entropy ceramics, there are no reports on the preparation of high-entropy oxide fibers, and there is a lack of relevant preparation experience. This has also become a problem to be solved when applying high-entropy structures to oxide inorganic fibers The problem

Method used

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  • A kind of high-entropy zirconate inorganic fiber and preparation method thereof
  • A kind of high-entropy zirconate inorganic fiber and preparation method thereof
  • A kind of high-entropy zirconate inorganic fiber and preparation method thereof

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Effect test

Embodiment 1

[0031] A preparation method of high-entropy zirconate inorganic fiber, comprising the following steps:

[0032] (a) Preparation of high-entropy zirconate fiber precursor sol

[0033] The solid raw material basic zirconium carbonate, calcium acetate, strontium acetate and barium acetate are added to the water of mass ratio solid: water=1:1 according to the element mol ratio Zr:Ca:Sr:Ba=3:1:1:1, and Under the condition of heating and stirring at 60 °C, the molar ratio Zr:CH was added. 3 The glacial acetic acid with COOH=1: 2 was dissolved to obtain a high-entropy zirconate sol; polyethylene oxide with a mass fraction of 1% was added to the high-entropy zirconate sol, and the high-entropy zirconate fiber precursor was fully dissolved. sol;

[0034] (b) Preparation of high-entropy zirconate precursor fibers by electrospinning

[0035] The high-entropy zirconate fiber precursor sol of step (a) is electrospinned to obtain high-entropy zirconate precursor fibers, wherein the elect...

Embodiment 2

[0039] As described in Example 1, the difference is that the calcium acetate in step (a) is replaced with calcium hydroxide, and the mol ratio Zr:CH is added. 3 COOH = 1:3 glacial acetic acid.

Embodiment 3

[0041] As described in Example 1, the difference is that in step (a), calcium acetate is replaced with calcium oxide, and the molar ratio Zr:CH is added. 3 COOH = 1:3 glacial acetic acid.

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Abstract

The present invention involves a high -entropy acid saline inorganic fiber and its preparation methods.The preparation method includes alkaline carbonate, calcium source, 锶 source, 钡 source, methamphetamine, and spinning agent in accordance with a certain proportion to heated and dissolved in the aqueous solution to make high -entropiic acid precursor anterior drivers;The precursor of the salt front drive body is obtained by the electrostatic spinning method to obtain a high -entropyed pyrine before the fiber fiber;The solution is stable and the spinning is good. The high -entropyed pyrine fiber is single -phase solid -soluble, the diameter of the fiber is 0.5‑1.5 μm, and the crystal and fiber form are kept stable at room temperature to 1400 ° C.

Description

technical field [0001] The invention relates to a high-entropy zirconate inorganic fiber and a preparation method thereof, belonging to the field of inorganic non-metallic materials. Background technique [0002] Since Rost et al. took the lead in extending the high-entropy concept proposed by Ye Junwei and Cantor in alloys to ceramics in 2015, high-entropy ceramic materials have been regarded as a new type of multi-host material formed by a variety of ceramic components in equimolar or nearly equimolar ratios. Elemental solid solution, with its lower thermal conductivity, slow diffusion effect and better performance, shows great application potential in the field of high temperature thermal insulation. [0003] Oxide inorganic fibers have developed into one of the key materials in the field of high temperature heat insulation due to their excellent high temperature stability, oxidation resistance, corrosion resistance, and light weight. However, oxide fibers have a common ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/10
CPCD01F9/10
Inventor 袁康康靳晓彤崔晴李呈顺
Owner QILU UNIV OF TECH
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