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Silicon carbide super-hydrophobic antisepsis wood bamboo and preparation thereof

A silicon carbide and superhydrophobic technology, applied in chemical instruments and methods, wood layered products, wood compression, etc., can solve problems such as difficult industrialization and expensive materials, and achieve low cost, good reproducibility, and simple operation process Effect

Inactive Publication Date: 2008-08-06
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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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

[0018] A method for preparing silicon carbide superhydrophobic anticorrosive wood and bamboo, the preparation steps comprising:

[0019] (1) Put solid wood panels of various specifications into a circular steel cylinder mold, which is required to withstand a pressure of 50-100Mpa and is matched with a press;

[0020] (2), take the powder of micro-nano silicon and magnesium silicide in any proportion, stir evenly with the copper catalyst whose addition amount is 1.5% by mass, the particle diameter of micro-nano silicon powder and magnesium silicide powder, catalyst is less than 500nm, then add Put it into the circular steel cylinder mold and submerge the solid wood board, then raise the pressure in the circular steel cylinder mold to 100MPa on the press and keep it for 2 hours; then release the pressure to 0MPa, take it out, knock it open with a small hammer, and use a bench The surface of the sanding machine is sanded to obtain the treated material;

[0021] (3) Put the treat...

Embodiment 2

[0024] A method for preparing silicon carbide superhydrophobic anticorrosive wood, the preparation steps comprising:

[0025] (1) Put wood chips of various specifications into a circular steel cylinder mold, which is required to withstand a pressure of 50-100Mpa and is matched with a press;

[0026] (2), take the powder of micro-nano silicon and magnesium silicide in any proportion, stir evenly with the silver catalyst whose addition amount is 1.0% by mass, the particle diameter of described micro-nano silicon powder and magnesium silicide powder, catalyst is less than 500nm , and then added to the circular steel cylinder mold, and submerged the wood chips, and then raised the pressure in the circular steel cylinder mold to 80MPa on the press, and kept it for 8 hours; then released the pressure to 0MPa, took it out, and knocked it open with a small hammer. And use a desktop sander to sand the surface to obtain the treated material;

[0027] (3) Put the treated material into t...

Embodiment 3

[0030] A method for preparing silicon carbide superhydrophobic anticorrosive wood, the preparation steps comprising:

[0031] (1) Put wood-based panels of various specifications into a circular steel cylinder mold, which is required to withstand a pressure of 50-100Mpa and is matched with a press;

[0032] (2), take the powder of micro-nano silicon and magnesium silicide in any proportion, stir evenly with the zinc catalyst whose addition amount is 0.5% by mass, the particle diameter of described micro-nano silicon powder and magnesium silicide powder, catalyst is less than 500nm , then added to the circular steel cylinder mold, and submerged wood-based panels, and then raised the pressure in the circular steel cylinder mold to 50MPa on the press, and kept it for 10 hours; then released the pressure to 0MPa, took it out, and tapped it with a small hammer Open it, and use a desktop sander to sand the surface to get the treated material;

[0033] (3) Put the treated material in...

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Abstract

The invention discloses a carborundum super-hydrophobic antiseptic wood-bamboo; the surface is a dense porous shallow layer which is formed by 1-4Mum-diamter microspheres composed of carborundum, wherein, the pore diameter is 10nm-10Mum. The preparation steps comprise: (1) the material to be treated is put into a die; (2) arbitrary proportion of micro-nano-silicon and magnesium silicide powder is balanced to uniformly stir with a catalyst addition with a mass percentage of 0.01-1.5 percent; the micro-nano-silicon powder, the magnesium silicide powder and the catalyst with a grain diameter of less than 500nm are added to the die to submerge the material to be treated; the pressure in the die is lifted to 50-100MPa on a press and held for 2-10h; the pressure is lowered to 0MPa, when the material is taken out, cracked and frosted by a sanding machine to reveal the surface, thus deriving the treated material; (3) the treated material is put in a hot press that is quickly closed; then the pressure is lifted to 1-6MPa and maintained for 1-120min, when the temperature of a hot pressboard is 200 DEG C to 600 DEG C, carborundum super-hydrophobic antiseptic wood-bamboo is derived. The method for preparing carborundum super-hydrophobic antiseptic wood-bamboo has the advantages of simple operation technology, good controllability, low cost, no complicated chemical treatment, no expensive equipment and industrialization facilitating.

Description

technical field [0001] The invention relates to a silicon carbide superhydrophobic anticorrosive wood bamboo, and also relates to a preparation method of the silicon carbide superhydrophobic anticorrosive wood bamboo. 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 transportation of liquids, moisture-proof packaging materials, biomedical materials that inhibit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M1/08B27M1/02B32B21/04
Inventor 彭万喜吴义强卿彦
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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