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A method for generating a silicon-titanium-aluminum ternary oxide film on the surface of wood

A wood surface, aluminum ternary technology, used in wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of easy pollution, easy drying and shrinking, and achieve the effect of good photocatalysis and good heat resistance.

Active Publication Date: 2017-10-20
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies, the present invention provides a method for forming a silicon-titanium-aluminum ternary oxide film on the surface of wood, so as to overcome the disadvantages of wood being easy to dry, shrink, wet, swell, and easily polluted during processing and use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] According to the molar ratio of ethyl orthosilicate: tetrabutyl titanate: aluminum triisopropoxide: HNO 3 (mass concentration is 65%): isopropanol (volume concentration is 99.7%): water = 0.5: 0.3: 0.7: 0.1: 0.8: 0.2, each raw material component is taken, and ethyl orthosilicate, tetrabutyl titanate Esters, aluminum triisopropoxide, HNO 3 , isopropanol, and water were put into a glass container and mixed at room temperature to prepare a silicon-titanium-aluminum ternary sol, in which ethyl orthosilicate was used as SiO 2 The precursor, tetrabutyl titanate for TiO 2 Precursor, aluminum triisopropoxide for Al 2 o 3 Precursor, HNO 3 as the catalyst and isopropanol as the solvent; put the smooth-surfaced wood into the prepared silicon-titanium-aluminum ternary sol and immerse it for 6 hours, and then pull it vertically at a speed of 4 cm / min to separate the wood from the silicon-titanium-aluminum ternary sol. The wood surface is covered with silicon-titanium-aluminum t...

Embodiment 2

[0022] According to the molar ratio of ethyl orthosilicate: tetrabutyl titanate: aluminum triisopropoxide: HNO 3 (mass concentration is 67%): isopropanol (volume concentration is 99.8%): water = 1.0: 0.8: 1.0: 0.2: 0.9: 0.4, each raw material component is taken, and ethyl orthosilicate, tetrabutyl titanate Esters, aluminum triisopropoxide, HNO 3 , isopropanol, and water were put into a glass container and mixed at room temperature to prepare a silicon-titanium-aluminum ternary sol, in which ethyl orthosilicate was used as SiO 2 The precursor, tetrabutyl titanate for TiO 2 Precursor, aluminum triisopropoxide for Al2 o 3 Precursor, HNO 3 Isopropanol is used as a catalyst, and isopropanol is used as a solvent; the wood with a smooth surface is immersed in the prepared silicon-titanium-aluminum ternary sol for 3.5 hours, and then pulled vertically at a speed of 12 cm / min to separate the wood from the silicon-titanium-aluminum ternary sol. The surface of the wood is covered wit...

Embodiment 3

[0024] According to the molar ratio of ethyl orthosilicate: tetrabutyl titanate: aluminum triisopropoxide: HNO 3 (mass concentration is 68%): isopropanol (volume concentration is 99.9%): water=1.5: 1.2: 1.2: 0.3: 1.1: 0.5, each raw material component is taken, and ethyl orthosilicate, tetrabutyl titanate Esters, aluminum triisopropoxide, HNO 3 , isopropanol, and water were put into a glass container and mixed at room temperature to prepare a silicon-titanium-aluminum ternary sol, in which ethyl orthosilicate was used as SiO 2 The precursor, tetrabutyl titanate for TiO 2 Precursor, aluminum triisopropoxide for Al 2 o 3 Precursor, HNO 3 Isopropanol is used as a catalyst, and isopropanol is used as a solvent; the wood with a smooth surface is immersed in the prepared silicon-titanium-aluminum ternary sol for 0.5h, and then pulled vertically at a speed of 20cm / min, that is, the wood is separated from the silicon-titanium-aluminum ternary sol. The surface of the wood is covere...

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PUM

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Abstract

The invention discloses a method for generating a silicon-titanium-aluminum tribasic oxidation film on the wood surface. The method mainly comprises the following operation steps that ethyl orthosilicate, tetrabutyl titanate, aluminium isopropoxide, HNO3, isopropyl alcohol and water are placed into a container and are mixed, and silicon-titanium-aluminum tribasic sol is prepared; wood is placed into the prepared silicon-titanium-aluminum tribasic sol to be dipped and is lifted out; and the obtained wood is subjected to seasoning in the room temperature condition, the wood is dried to be in a constant weight after seasoning and is subjected to high-temperature treatment for 20-60 min, and a product is obtained. According to the method for generating the silicon-titanium-aluminum tribasic oxidation film on the wood surface, wood with a self-cleaning function is obtained.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a method for forming a silicon-titanium-aluminum ternary oxide film on the wood surface. Background technique [0002] Wood is a traditional and advanced material. It is naturally renewable, has a high strength-to-weight ratio, and has a unique and beautiful texture. It has functions such as temperature regulation, humidity regulation, and environmental odor adjustment, and is deeply loved by people. However, wood also shows some disadvantages, such as being easily polluted by pollutants, having no electromagnetic shielding function, shrinking and swelling when drying, etc., which limit its use during use. However, with the continuous improvement of people's living environment requirements, there is a greater demand for wood to have more functions, such as photocatalysis, electromagnetic shielding and other properties, which requires functional improvement research on wood. The us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/15B27K3/52B27K5/04B27K5/00
CPCB27K3/156B27K3/52B27K5/0085B27K5/04B27K2240/70
Inventor 符韵林黎韦水刘晓玲
Owner GUANGXI UNIV