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A Simple Method to Prepare Zirconia Fiber Cloth Using Cotton Cloth as a Template

A technology of zirconia fiber and cotton cloth, which is applied in the field of preparation of ceramic fiber materials, can solve the problems of hindering the wide application and popularization of zirconia fiber cloth, restricting applications, complex equipment, etc., achieving huge economic and social benefits, low total cost, The effect of low energy consumption

Inactive Publication Date: 2016-08-17
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the melting point of zirconia is as high as 2700 °C, if the traditional melting method is used to prepare high-purity zirconia fiber cloth, it has the disadvantages of high energy consumption, complicated equipment, and high cost, which greatly limits the high-purity zirconia fiber cloth. Applications in refractory insulation materials, catalyst carriers, toxic substance adsorbents and film supports, etc.
In addition, the process and equipment of preparing zirconia fiber by wet chemical method (mainly sol-gel method) at home and abroad are complex and costly; if it is woven into cloth, the cost will be further increased, which seriously hinders the widespread use of zirconia fiber cloth. Application and promotion
[0003] On the other hand, with the development of my country's economy and the increase of population, the consumption of textiles has increased rapidly, and a large number of waste textiles have been buried and incinerated as garbage, which has not only caused a waste of resources, but also caused environmental pollution.

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Dissolve zirconium oxychloride, yttrium nitrate, urea and polyvinyl alcohol (auxiliary) in distilled water to prepare a solution to control Zr 4+ and urea concentrations were 0.3 mol / L, 0.018 mol / L and 0.5 mol / L, respectively. Among them, the amount of polyvinyl alcohol added is 1% of the mass of urea. Soak a new cotton-containing fabric (80wt% cotton, 10wt% polyester, 10wt% spandex) in the solution for 10 minutes, remove and wring out excess water. After drying at 50°C for 20 hours, put the soaked and dried cloth in a tunnel kiln, heat it to 400°C at a speed of 20°C / min, and then heat it up to 1650°C at a speed of 0.1°C / min ℃ and keep warm for 0.5 hours for sintering; after cooling, zirconia (3 mol% yttrium oxide) fiber cloth can be prepared.

Embodiment 2

[0020] Dissolve zirconium oxynitrate, yttrium nitrate, urea and polyethylene glycol (auxiliary) in distilled water to prepare a solution to control Zr 4+ , Y 3+ and urea concentrations were 0.6 mol / L, 0.036 mol / L and 1.2 mol / L, respectively. Wherein, the addition of polyethylene glycol is 2% of urea quality. Soak a new cotton-containing fabric (87wt% cotton, 5wt% polyester, 8wt% elastane) in the solution for 10 minutes, remove and wring out excess water. After drying at 50°C for 20 hours, put the soaked and dried cloth in a tunnel kiln, heat it up to 600°C at a speed of 30°C / min, and then heat up to 1200°C at a speed of 1°C / min And keep it warm for 1 hour for sintering; after cooling, the zirconia (3mol% yttrium oxide) fiber cloth can be prepared.

Embodiment 3

[0022] Dissolve zirconium oxychloride, yttrium nitrate, urea and polypropylene glycol (auxiliary) in distilled water to prepare a solution to control Zr 4+ , Y 3+ and urea concentrations were 0.8 mol / L, 0.048 mol / L and 2 mol / L, respectively. Wherein, the addition amount of polypropylene glycol is 3% of urea mass. Put the recycled cotton-containing fabric (cotton content 90 wt%, polyester 5 wt%, spandex 5 wt%) into the solution and soak for 10 minutes, then remove and wring out excess water. After drying at 50°C for 20 hours, place the soaked and dried cloth in a tunnel kiln, heat up to 500°C at a speed of 40°C / min, and then heat up to 1600°C at a speed of 0.3°C / min And keep it warm for 0.5 hours for sintering; after cooling, the zirconia (3mol% yttrium oxide) fiber cloth can be prepared.

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
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PUM

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Abstract

The invention provides a simple method for preparing a zirconium oxide (3 mol% of yttrium oxide) fiber fabric by using a cotton-containing fabric as a template, belonging to the technical field of preparation of ceramic fiber materials. The method is characterized by comprising the following steps: (1) dissolving zirconium salt, yttrium nitrate, urea and assistant in distilled water to prepare a solution; immersing the cotton-containing fabric in the solution for 10 minutes, taking out, wringing out the excess water, and drying at 50 DEG C for 20 hours; and (2) putting the immersed and dried fabric in a tunnel kiln, quickly heating to 400-800 DEG C, slowly heating to 1200-1650 DEG C in an atmospheric atmosphere, and sintering by keeping the temperature for 0.5-1 hour. The method has the advantages of simple technique and equipment, low energy consumption and low cost, and is easy to operate and convenient for implementing industrial large-scale production.

Description

technical field [0001] The invention provides a simple method for preparing zirconia (3 mol% yttrium oxide) fiber cloth by using cotton-containing cloth as a template, and belongs to the technical field of ceramic fiber material preparation. Background technique [0002] Zirconia fiber cloth has the advantages of high temperature resistance, high strength, good toughness, high porosity, large specific surface area, heat insulation, etc., and can be used as high temperature refractory insulation materials, adsorbents for toxic substances, catalyst carriers, film supports and chemical fillers Wait. The traditional preparation method of fiber cloth is to heat the original ingredients to a high temperature and melt them, prepare fibers by spinning, drawing and other processes, and then use spinning or weaving techniques to make fiber cloth products. Since the melting point of zirconia is as high as 2700 °C, if the traditional melting method is used to prepare high-purity zircon...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48C04B35/622
CPCC04B35/48C04B35/62218C04B35/632C04B35/63404C04B35/63416C04B2235/3225C04B2235/5292C04B2235/6562
Inventor 白佳海唐钰栋李国昌
Owner SHANDONG UNIV OF TECH