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Manufacturing method for bamboo wood surface loaded nanometer titania material

A nano-titanium dioxide, surface-loaded technology, applied in chemical instruments and methods, manufacturing tools, separation methods, etc., can solve the problems of uneven distribution of titanium dioxide, easy agglomeration, complex operation, etc., to achieve easy operation, simple production process, photocatalysis The effect of degrading formaldehyde

Inactive Publication Date: 2017-09-08
ZHEJIANG FORESTRY ACAD
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  • Summary
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AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the existing nano-titanium dioxide composite materials, such as uneven distribution of titanium dioxide, easy agglomeration, and complicated operation, the present invention provides a nano-titanium dioxide loaded on the surface of bamboo with uniform distribution of titanium dioxide, simple operation, large loading capacity, and firm combination with bamboo. How the material is made

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] ③Preparation of bamboo-based nano-titanium dioxide composites

[0029] Bamboo treated with DBD cold plasma was soaked in sulfonated nano-TIO 2 In the aqueous solution, soak for 5-15min, and fully stir the nano-TIO when soaking 2 aqueous solution. After soaking, take out the bamboo, rinse off the free nano-TIO on the surface of the bamboo with water 2 The material is then put into an oven to dry, the drying temperature is 70-100°C, and the drying time should not be too long to avoid serious curling of the bamboo, which is 10-20min.

[0030] The dried bamboo is treated with cold plasma such as DBD again, and then soaked in nano-TIO 2 The aqueous solution is circulated in this way to prepare the bamboo-based nano-titanium dioxide composite material.

example

[0031] Example: a kind of manufacture method of bamboo base nano-titanium dioxide composite material, comprises the following steps:

[0032] ①Sulfonation treatment of nano-titanium dioxide

[0033] Nano titanium dioxide (TIO 2 ): Anatase type, purity 99.8%, hydrophilic and lipophilic type, nano-particles are about 25nm.

[0034] Poly(4-styrenesulfonic acid)ammonium salt solution: Poly(4-ammonium styrene-sulfonic acid)), alias pas, mass fraction is 30%, molecular weight Mw≈20000, soluble in water.

[0035] will TIO 2 Nanoparticles are dispersed in 5% pas solution, and the solution is ultrasonically dispersed in an ultrasonic oscillator with a power of 5KW for 2 hours, and then left for 8 hours to make the TIO 2 Nanoparticles are sufficiently combined with pas, so that TIO 2 The nanoparticles are negatively charged. Then the TIO 2 Nanoparticles are washed and separated (at least twice) by a high-speed centrifuge to remove negatively charged polymer macromolecules in the s...

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Abstract

A manufacturing method for a bamboo wood surface loaded nanometer titania material. The method comprises the following steps that firstly, sulfonation treatment of nanometer titania is conducted, and a TIO2 nano material is prepared into a water solution with the set mass fraction to be used later; secondly, cold plasma processing is conducted on bamboo wood; and thirdly, preparing of bamboo-base nanometer titania composite materials is conducted, wherein the process comprises the following steps that cold plasma processing is conducted, the bamboo wood is then immersed in the nano TIO2 water solution obtained after sulfonation treatment, and then the bamboo-base nanometer titania composite material is prepared. The manufacturing method for the bamboo wood surface loaded nanometer titania material uniform in titanium dioxide distribution, easy to operate, large in load amount and firm in combination with wood is provided.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and the patent classification number is B01J. The invention loads the nano-titanium dioxide material on the surface of the bamboo, thereby preparing the bamboo-based nano-titanium dioxide composite material, which has the function of photocatalytically degrading formaldehyde, and can be used in the manufacture of furniture boards. Background technique [0002] Wood is recognized as a green material in the world. Because of its pleasing color, elegant and beautiful texture, good touch, high strength-to-weight ratio and easy processing, wood has been the material of choice for human furniture production and interior decoration since ancient times. Among the four major materials in the world today - wood, plastic, steel, and cement, it is the only resource that is both renewable and recyclable. It can be said that whether it is now or in the future, wood is always an ideal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K9/00B27K3/00B27K5/00B27K3/02B27K5/04B01D53/86B01D53/72
CPCB01D53/8668B01J21/063B27K3/007B27K3/02B27K5/002B27K5/04B27K9/002B01D2257/708B01J35/39
Inventor 王洪艳
Owner ZHEJIANG FORESTRY ACAD
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