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Porous ceramic prepared by adopting different inorganic binders and preparation method thereof

An inorganic binder and porous ceramic technology, applied in the field of porous ceramics, can solve the problems of low porosity, poor purification effect, low recyclability, etc., and achieve the effect of high porosity and excellent comprehensive performance.

Inactive Publication Date: 2013-10-16
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some filter materials currently on the market have some shortcomings in varying degrees, such as insufficient strength and low porosity, resulting in poor purification effect and low recyclability, which restrict the practical application of sewage treatment technology in our country.

Method used

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  • Porous ceramic prepared by adopting different inorganic binders and preparation method thereof
  • Porous ceramic prepared by adopting different inorganic binders and preparation method thereof
  • Porous ceramic prepared by adopting different inorganic binders and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1

[0060] From Table 2 and figure 1 It can be seen that when the sintering temperature of the product is above 1300°C, the internal particles of the product are closely combined and have a certain strength. When the sintering temperature is 1350°C, the flexural strength of the sample can reach 25.57MPa, and reach the highest 32.45MPa at 1450°C; figure 2 It can be seen that when the sintering temperature of the product is 1200°C, the apparent porosity of the embodiment A1 reaches the highest 49.2%. As the sintering temperature increases, the apparent porosity does not decrease significantly. The apparent porosity is still as high as 48.12%.

Embodiment A2

[0062] From Table 2 and figure 1 It can be seen that the sintering temperature of the product is above 1350°C, and the internal particles of the product are closely combined. When the sintering temperature is 1400°C, the flexural strength can reach 26.08MPa, and when the sintering temperature is 1500°C, the flexural strength value can be as high as 35.36MPa ;Depend on figure 2 It can be seen that when the sintering temperature of the product is 1200 ° C, the apparent porosity of the sample of embodiment A2 reaches the highest 51.4%, and when the sintering temperature is 1350 ° C, the apparent porosity of the embodiment A2 is still as high as 49.18%.

Embodiment A3

[0064] From Table 2 and figure 1 It can be seen that when the sintering temperature of the product is 1200°C, it already has a certain strength and there is no particle drop phenomenon. When the sintering temperature is 1350°C, it reaches the highest strength of 30.68MPa. At the same time, the apparent porosity is 47.8%.

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Abstract

The invention discloses porous ceramic prepared by adopting different inorganic binders, which comprises the following raw material components: inorganic binders, aggregates and pore forming materials, wherein the mass ratio of the inorganic binders, the aggregates to the pore forming materials is 3 : 17 : 2; the raw material components of the inorganic binders are CaO-MgO-SiO2-Al2O3-TiO2 system glass, feldspar and clay, and the mass proportional range of the components is 29.24-100 : 0-47.14 : 22.32-61.74. According to the invention, different cheap inorganic binders are used for connecting aggregates to prepare the porous ceramic which has high strength and high air porosity, and can be applied to filtration and separation, so that the overall performance is excellent, the maximum bending strength can reach 33.34 MPa, and the apparent porosity is 48.25%.

Description

technical field [0001] The invention belongs to a ceramic composition characterized by components, and in particular relates to a method of using different inorganic binders to connect aggregates to prepare porous ceramics with light weight, high strength and high porosity for filtering. Background technique [0002] With the continuous development of the global economy, resources and the environment are two major problems faced by human society, so people pay more and more attention to resource utilization and environmental protection. In order to improve work efficiency and save production energy, porous ceramics have emerged as the times require, and play an irreplaceable role in all walks of life, especially in solid-liquid separation, porous ceramics, as a new and efficient separator, have been widely used application and rapid development. [0003] Porous ceramics not only have the advantages of high temperature resistance, corrosion resistance, and high chemical stab...

Claims

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Application Information

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IPC IPC(8): C04B35/63C04B38/06C04B35/14C04B35/622
Inventor 马卫兵张亚倩孙清池李建平唐翠翠
Owner TIANJIN UNIV
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