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Micro nanometer silicon charing super-hydrophobic antisepsis wood and preparation thereof

A micro-nano, super-hydrophobic technology, applied in chemical instruments and methods, wood layered products, manufacturing tools, etc., can solve the problems of expensive materials and difficult industrialization, and achieve stable super-hydrophobic properties, good reproducibility, and wide application The effect of applying the foreground

Inactive Publication Date: 2010-08-04
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing methods either use expensive materials, or require special processing equipment or complex processes, making it difficult to industrialize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of micronano silicon carbonized superhydrophobic anticorrosive wood and bamboo comprises the following steps:

[0018] (1) Put the solid wood board into the circular steel cylinder mold, the circular steel cylinder mold is required to withstand the pressure of 50-100Mpa, and it is matched with the press;

[0019] (2), weigh a certain amount of micro-nano silicon powder whose particle size should be less than 500nm, add it into the circular steel cylinder mold until submerging the solid wood plate, then raise the pressure in the circular steel cylinder mold to 100MPa on the press, and keep 2 hours; then release the pressure to 0MPa, take it out, knock it open with a small hammer, and use a desktop sander to remove the silicon on the surface to obtain a silicon material;

[0020] (3) Put the silicon material into the hot press, quickly close the hot press, increase the pressure to 1MPa, and keep the pressure for 10 minutes. The temperature of the ho...

Embodiment 2

[0023] The preparation method of micronano silicon carbonized superhydrophobic anticorrosive wood and bamboo comprises the following steps:

[0024] (1) Put the wood-based panels into a circular steel cylinder mold, which is required to withstand a pressure of 50-100Mpa and is matched with a press;

[0025] (2), take by weighing a certain amount of particle size should be less than the micro-nano silicon powder of 500nm, join in the circular steel cylinder mold until submerging wood-based panels, then the pressure in the circular steel cylinder mold is raised to 80MPa on the press, and Keep it for 5 hours; then release the pressure to 0MPa, take it out, knock it open with a small hammer, and use a desktop sander to remove the silicon on the surface to obtain a silicon material;

[0026] (3) Put the silicon material into the hot press, quickly close the hot press, increase the pressure to 4MPa, and hold the pressure for 8 minutes. The temperature of the hot platen of the hot pr...

Embodiment 3

[0029] The preparation method of micronano silicon carbonized superhydrophobic anticorrosive wood and bamboo comprises the following steps:

[0030] (1), put the bamboo into the circular steel cylinder mold, the circular steel cylinder mold is required to withstand the pressure of 50-100Mpa, and it is matched with the press;

[0031] (2), take by weighing a certain amount of micro-nano silicon powder whose particle size should be less than 500nm, join in the circular steel cylinder mold until the bamboo is submerged, then raise the pressure in the circular steel cylinder mold to 100MPa on the press, and keep 2 hour; then release the pressure to 0MPa, take it out, use a small hammer to knock it open, and use a desktop sander to remove the silicon on the surface to obtain a silicon material;

[0032] (3) Put the silicon material into the hot press, quickly close the hot press, increase the pressure to 1MPa, and keep the pressure for 10 minutes. The temperature of the hot plate o...

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Abstract

The invention discloses a micro-nanometer silicon carbonization super hydrophobic anti-rotten wood bamboo. The wood body forms a layer of micro-nanometer silicon carbonization super hydrophobic film which is a dense porous film comprising micro-balls that is formed by mixing silicon with diameter of 1-4Mum, silicon carbide and Silica. The diameter of the pore is 10nm to 10Mum. The preparation steps include: (1)putting the awaiting treatment material into the die; (2)weighing the micro-nanometer silicon powder, of which the particle size is less than 500nm; and putting the micro-nanometer silicon powder into the die till the awaiting treatment material is emerged; raising the pressure in die to 50-100MPa for 2 to 10 hours by a press machine; lowering the pressure to 0MPa to get out and to open the awaiting treatment material; removing the silicon on the surface by sanding machine to get the silicon wood. (3) putting silicon wood into the hot press machine which is quickly closed with the pressure rising to 1-6MPa; keeping the pressure for 1-10min; keeping the temperature of the hot platen of the hot press machine from 300 DEG C to 600 DEG C; getting out and obtaining the micro-nanometer silicon carbonization super hydrophobic anti-rotten wood bamboo. With simple operation technique, good control and low cost, the preparation method does not need the complex chemical treatment and expensive equipment which is easy industrialized.

Description

technical field [0001] The invention relates to a micro-nano silicon carbonized super-hydrophobic anticorrosive wood, and the invention also relates to a method for preparing a super-hydrophobic film by using micro-nano silicon carbonization to form a silicon-based carbonized super-hydrophobic wood. Background technique [0002] Inspired by the straw leaf effect, solid materials with superhydrophobic surfaces (the contact angle between the material surface and water is greater than 150°, and the water droplets have a small rolling angle on the surface) have attracted extensive interest. Due to the characteristics of waterproof, anti-fog, anti-oxidation and self-cleaning, superhydrophobic surfaces have broad application prospects in scientific research, industrial and agricultural production, and daily life. For example, it can be applied to building materials and exterior wall coatings with self-cleaning function, textiles with self-cleaning function, loss-free transportatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/08B32B21/04
Inventor 吴义强彭万喜卿彦
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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