Preparation method of super-hydrophobic preservative treated wood

A super-hydrophobic, wood technology, applied in wood treatment, wood heating, wood impregnation, etc., can solve the problem of short duration of anti-corrosion and hydrophobic effect, and achieve the effects of increasing anti-corrosion performance, good bacteriostatic effect and simple preparation method

Inactive Publication Date: 2019-04-26
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there are related reports on anticorrosion and hydrophobic treatment of wood, but the effects of anticorrosion and hydrophobic treatment in the prior art need to be improved, and the duration of the anticorrosion and hydrophobic effect is not long

Method used

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  • Preparation method of super-hydrophobic preservative treated wood
  • Preparation method of super-hydrophobic preservative treated wood
  • Preparation method of super-hydrophobic preservative treated wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The superhydrophobic preservative wood in the present embodiment comprises wood matrix (being the masson pine wood chip), and the inside of this wood matrix is ​​impregnated with nano-Cu 2 O particles, coated with a superhydrophobic coating. The above-mentioned super-hydrophobic coating is a vinyltriethoxysilane hydrolysis film layer. The preparation method of above-mentioned superhydrophobic preservative wood comprises the following steps:

[0039] (1) Dissolve 2g of copper acetate monohydrate in 100mL of water, stir magnetically for 10min with slight heating, then add 1.8gD-glucose and 0.3g of K-30PVP under magnetic stirring conditions, and continue stirring for 20min to obtain a mixed solution system;

[0040] (2) Take 70mL of the mixed solution system obtained in step (1) in the reactor liner, put masson pine wood chips at the same time, and then heat the reactor at 120°C for 6h;

[0041] (3) After the reaction kettle is lowered to room temperature, the wood chips...

Embodiment 2

[0047] The superhydrophobic preservative wood in the present embodiment comprises wood matrix (being the masson pine wood chip), and the inside of this wood matrix is ​​impregnated with nano-Cu 2 O particles, coated with a superhydrophobic coating. The above-mentioned super-hydrophobic coating is a vinyltriethoxysilane hydrolysis film layer. The preparation method of above-mentioned superhydrophobic preservative wood comprises the following steps:

[0048] (1) Dissolve 2g of copper acetate monohydrate in 100mL of water, stir magnetically for 15min with slight heating, then add 1.8g of D-glucose and 0.3g of K-30PVP under magnetic stirring, and continue stirring for 20min to obtain a mixed solution system;

[0049] (2) Take 70mL of the mixed solution system obtained in step (1) in the reactor liner, put masson pine wood chips at the same time, and then heat the reactor at 150°C for 7h;

[0050] (3) After the reaction kettle is lowered to room temperature, the wood chips are ta...

Embodiment 3

[0056] The superhydrophobic preservative wood in the present embodiment comprises wood matrix (being the masson pine wood chip), and the inside of this wood matrix is ​​impregnated with nano-Cu 2 O particles, coated with a superhydrophobic coating. The above-mentioned super-hydrophobic coating is a vinyltriethoxysilane hydrolysis film layer. The preparation method of above-mentioned superhydrophobic preservative wood comprises the following steps:

[0057] (1) Dissolve 2g of copper acetate monohydrate in 100mL of water, stir magnetically for 15min with slight heating, then add 1.8g of D-glucose and 0.3g of K-30PVP under magnetic stirring, and continue stirring for 20min to obtain a mixed solution system;

[0058] (2) Take 70mL of the mixed solution system obtained in step (1) in the reactor liner, put masson pine wood chips at the same time, and then heat the reactor at 180°C for 8h;

[0059] (3) After the reaction kettle is lowered to room temperature, the wood chips are ta...

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Abstract

The invention discloses a preparation method of super-hydrophobic preservative treated wood, which comprises the following steps: (1) dissolving cupric acetate monohydrate in water, adding glucose andPVP under a gentle heating stirring condition, continually stirring to form a reaction solution, (2) adding the reaction solution in the step (1) into a closed container, placing a wood matrix into the reaction solution in the closed container, performing heating and soaking, taking out the wood matrix, performing immersion cleaning using deionized water, drying the wood matrix to form a reservewood matrix, (3) hydrolyzing triethoxyvinylsilane to form a hydrolysis system, and (4) soaking the reserve wood matrix in the hydrolysis system, and obtaining the super-hydrophobic preservative treated wood after drying. A super-hydrophobic coating is combined with Cu2O nano particles; the presence of the super-hydrophobic coating facilitates the long-lasting effect of the Cu2O nano particles; andthe super-hydrophobic coating and the Cu2O nano particles have a synergistic effect, so that the super-hydrophobic preservative treated wood has better anti-corrosion and antibacterial effects for alonger and more lasting time.

Description

technical field [0001] The invention belongs to the field of composite materials, in particular to a preparation method of modified wood. Background technique [0002] Wood is widely used in daily life, but due to its natural characteristics of water absorption, moisture absorption, and easy decay and degradation, it will cause defects such as deformation, decay, and mold discoloration in the actual application process, which seriously restricts the effective use of wood and reduces use value. [0003] Since the emergence of the concept of "composite materials", people have paid more and more attention to composite materials. Compared with single materials, composite materials have the excellent properties of multiple materials at the same time, with better mechanical properties, larger molecular weight, better size and chemical stability. Composite wood can well solve the above-mentioned problems of wood. [0004] The surface hydrophobic treatment of composite wood can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/52B27K5/00B27K5/04
CPCB27K3/02B27K3/52B27K5/001B27K5/04B27K2240/20B27K2240/70
Inventor 吴义强罗莎关鹏飞卿彦赵星刘明
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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