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Method for mfg. nano self-cleaning type wood composite material

A technology of composite materials and manufacturing methods, applied in the direction of chemical instruments and methods, layered products, lamination devices, etc., can solve problems such as carcinogenicity and damage to health, and achieve the effect of simple production process

Inactive Publication Date: 2007-02-14
NANJING FORESTRY UNIV
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Problems solved by technology

It can cause DNA-protein cross-linking and combine with DNA to form adducts, which has the potential to cause cancer and seriously damage human health.

Method used

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  • Method for mfg. nano self-cleaning type wood composite material

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Experimental program
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Embodiment 1

[0015] 0.03g / cm 2 Anatase Nano Solid Powder TiO 2 Mix it with phenolic resin in a ratio of 1:2 by weight, evenly brush it on the phenolic resin impregnated paper, hang it outdoors to air-dry until it is not sticky to hands, then put it into an oven at 80°C, bake for 6 minutes, take it out and save it.

[0016] Urea-formaldehyde resin glue (free formaldehyde content is 1.01%) is used as an adhesive, and wood particleboard is pressed according to the following process parameters:

[0017] Particle board specification: 50×50×1cm

[0018] Particleboard bulk density: 0.65g / cm 3

[0019] Glue amount: 10%

[0020] Hot pressing temperature: 160°C

[0021] Hot pressing pressure: 3MPa

[0022] Hot pressing time: 0.6min / mm board thickness

[0023] Remove the trimmed slab and sand both surfaces with wood sandpaper to remove the pre-cured layer. Choose veneer temperature as 135°C, time 6min, pressure 1.4MPa.

[0024] Place the two pieces of veneered particleboard in a closed conta...

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Abstract

A process for preparing the auto-cleaning nano-type composite wooden material includes such steps as proportionally mixing the anatase-type TiO2 nano-particles with resin, coating the mixture on a dipped paper, drying in air, baking, sticking it on both surface of an artificial wooden board, hot pressing at 135-150 deg. C under 1.4-2.0 MPa for 6-15 min.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels and composite materials, and relates to a method for manufacturing nanometer self-cleaning wood composite materials. Background technique [0002] In recent years, the use of nano-TiO 2 , ZnO and other semiconductor photocatalytic removal and degradation of pollutants has become an active research direction. TiO 2 As an antibacterial material, it has the characteristics of stable chemical properties, insoluble, non-toxic, strong antibacterial and bactericidal effects, anti-mildew effect, and low application cost. It can oxidize most organic pollutants and some inorganic pollutants, and photocatalyze it Degradation, finally producing non-toxic and tasteless CO 2 、H 2 O and some simple inorganic substances. [0003] Formaldehyde is a typical indoor environmental pollutant. It is composed of a variety of interior decoration materials, such as furniture, paint, wallpaper, plastic floors...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/14B32B37/06
Inventor 周晓燕梅长彤周定国徐咏兰连海兰徐信武程伟陈亮
Owner NANJING FORESTRY UNIV
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