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Strontium zirconate inorganic fiber and preparation method thereof

A technology of inorganic fiber and strontium zirconate, which is applied in the direction of artificial filaments of inorganic raw materials, can solve the problems of no strontium zirconate fiber, etc., and achieve the effects of easy spinning and mass production, stable sol, and broad application prospects

Active Publication Date: 2021-06-01
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far there is no report about strontium zirconate fiber

Method used

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  • Strontium zirconate inorganic fiber and preparation method thereof
  • Strontium zirconate inorganic fiber and preparation method thereof
  • Strontium zirconate inorganic fiber and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033]Preparation method of zirconate inorganic fibers, including the steps of:

[0034](a) Preparation of primary zirconate precursor sol

[0035]Raw zirconium chloride, ice acetic acid according to molar rativation of zirconium chloride: Ice acetic acid = 1: 1.2 to the mass ratio solid: water = 1: 2 water, dissolve the zirconia precursor sol; heating at 60 ° C Under the conditions, molar ratio Zr: Sr = 1: 1 is added to the zirconia precursor sol, and the zirconate sol is dissolved; the mass fraction is added to the zirconate sol, which is 1.5% polyoxyethylene. Make full dissolve zirconate precursor sol;

[0036](b) Straoperate precursor fibers prepared by static spinning method

[0037]The zirconate precursor sol of step (a) is bleedr-zirconate precursor fibers by electrostatic spinning, wherein the electrospinning process conditions are a spinning distance of 16cm, and the spinning voltage is 16 kV, and the sol propulus rate is 2.0 mL / H, the ambient temperature is 10 ~ 25 ° C, the environm...

Embodiment 2

[0041]As described in Example 1, the difference is a cerium carbonate in step (a) to cerium oxide.

Embodiment 3

[0043]As described in Example 1, the difference is to replace the barium carbonate in step (a) to hydroxide.

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Abstract

The invention relates to a strontium zirconate inorganic fiber and a preparation method thereof. The preparation method comprises the following steps: heating and dissolving a zirconium source, a strontium source, an organic ligand and a spinning aid in a certain proportion in a water solution to obtain strontium zirconate precursor sol; carrying out electrostatic spinning on the strontium zirconate precursor sol to obtain strontium zirconate precursor fibers; and carrying out heat treatment on the strontium zirconate precursor fiber to obtain the strontium zirconate inorganic fiber. The obtained sol is stable and reliable, has good spinnability, is easy for spinning preparation, the precursor fibers are high in solid content, the diameter of the prepared strontium zirconate inorganic fiber is 0.5-1.0 [mu]m, and the fiber morphology is kept stable under the condition of room temperature to 1400 DEG C high temperature.

Description

Technical field[0001]The present invention relates to a zirconate inorganic fiber and a preparation method thereof, belonging to the field of inorganic non-metallic materials.Background technique[0002]In recent years, with the long-term operational demand of high temperature kiln and my country's improvement in energy conservation and environmental emissions standards, high temperature energy-saving kiln insulation layer is high temperature resistance, low thermal conductivity, high strength Thermal material puts higher requirements to solve the problem of high temperature crystallization, phase change, and insufficient temperature resistance of traditional inorganic fibers. Therefore, inorganic fibers having excellent heat insulation performance such as high melting point and low thermal conductivity are one of the needs of the advanced insulation system.[0003]Zirconate (Srzro)3) Is a perovskite structure material having a high melting point (2800 ° C), low thermal conductivity (~ ...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622D01F9/08
CPCC04B35/48C04B35/6225D01F9/08C04B2235/3213
Inventor 袁康康窦同瑞李洁靳晓彤李呈顺
Owner QILU UNIV OF TECH
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