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Simple and convenient method for preparing ZnO coating on surface of wood

A wood surface and coating technology, applied in coating, wood treatment, coating impregnation, etc., can solve the problems of complex operation process of hydrothermal method, pollution of natural environment, large energy loss, etc. High transparency and not easy to fall off

Inactive Publication Date: 2015-05-06
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the main components of wood surface coatings are mostly organic compounds. When wood with organic coatings is placed in the natural environment, once it falls off or wears off, it is easy to cause pollution to the natural environment. At present, the preparation of inorganic coatings on the wood surface mainly uses the hydrothermal method, but the operation process of the hydrothermal method is relatively complicated, and the energy loss is also relatively large.

Method used

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  • Simple and convenient method for preparing ZnO coating on surface of wood
  • Simple and convenient method for preparing ZnO coating on surface of wood
  • Simple and convenient method for preparing ZnO coating on surface of wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of wood surface ZnO coating is realized through the following steps:

[0026] Prepare the precursor solution, that is, mix zinc acetate / water / ethanol evenly, the molar concentration of zinc acetate is 0.6 mol / L, and the volume ratio of water and ethanol is 1:9; (2) Immerse the wood in the precursor solution, The temperature was 50 °C and kept for 8 h; (3) After the wood was taken out from the precursor solution, it was immersed in an ammonia solution with a pH value of 8, and at the same time placed in an ultrasonic oscillator of the model KQ-100TDE for ultrasonic treatment 2 h, in which the ultrasonic frequency is 80 kHz, and the ultrasonic power is 50 W; put the wooden block into ultrapure water for 0.5 h; (4) After the ultrasonic treatment is completed, take out the wooden block and put it into a freeze dryer for drying. Finally, a ZnO coating on the wood surface is obtained.

[0027] The microscopic morphology scanning electron micrograph of ...

Embodiment 2

[0029] The preparation method of wood surface ZnO coating is realized through the following steps:

[0030] Prepare the precursor solution, that is, uniformly mix zinc acetate / water / ethanol, the molar concentration of zinc acetate is 0.6 mol / L, and the volume ratio of water and ethanol is 1:9; (2) Immerse the wood in the precursor solution, The temperature was 50 °C and kept for 5 h; (3) After the wood was taken out from the precursor solution, it was immersed in an ammonia solution with a pH value of 9, and at the same time placed in an ultrasonic oscillator of the model KQ-100TDE for ultrasonic treatment 1 h, the ultrasonic frequency was 80 kHz, and the ultrasonic power was 100 W; then put the wooden block into ultrapure water for 0.5 h; (4) After the ultrasonic treatment was completed, the wooden block was taken out and placed in a freeze dryer for drying treatment, and finally Get ZnO coating on wood surface.

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Abstract

The invention discloses a simple and convenient method for preparing a ZnO coating on the surface of a wood through an ultrasonic vibrating method. The method comprises the following steps: (1) preparing a zinc acetate precursor liquid; (2) immersing the wood in the zinc acetate precursor liquid; (3) putting the wood in an aqueous ammonia liquid and carrying out ultrasonic treatment; and (4) drying the immersed wet wood. The process disclosed by the invention is simple, low in cost and very high in stability, the prepared ZnO coating can be more stably bonded to the surface of the wood, hardly falls off and is non-toxic and harmless and high in transparency, the texture appearance of the wood is still retained and meanwhile, the weather resistance, UV resistance and the surface hydrophobicity of the wood product are all improved.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to a convenient method for preparing a ZnO coating on a wood surface. Background technique [0002] Wood is widely used in engineering materials and fields of production and life. It is used in a large amount, low in cost, and renewable. It is significantly different from steel, cement, and plastic, and has some unique properties such as texture and aesthetics. As a natural polymer material, wood is prone to discoloration and degradation under the action of ultraviolet light. It is of positive significance for wood to protect wood from ultraviolet light. The method of wood surface coating is usually adopted to isolate the wood from the external environment. At present, the main components of wood surface coatings are mostly organic compounds. When wood with organic coatings is placed in the natural environment, once it falls off or wears out, it is easy to cause ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/12B27K3/50B27K3/16B27K5/00B27K5/04
CPCB27K3/12B27K3/16B27K3/50B27K5/00B27K5/04B27K2240/70B27K2240/90
Inventor 詹红兵王百灵冯苗
Owner FUZHOU UNIV