Core-shell type multifunctional composite wood precursor solution and its preparation method

A precursor liquid, core-shell type technology, applied in wood impregnation, impregnated wood, wood processing utensils, etc., can solve the problems of ceramic wood performance degradation, toughness decline, complex composition, etc., to improve hardness and strength, improve loss resistance , the effect of simple preparation method

Inactive Publication Date: 2008-01-09
BEIJING PEIER MAOSEN TECH PROMOTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007]3. Although the ceramic wood compounded with inorganic salts and wood has improved in hardness, strength, flame retardancy and wear resistance, the The brittleness of the material increases and the toughness decreases, which affects the feel of the material, and due to the poor loss resistance of inorganic salts, the performance of ceramic wood decreases with the prolongation of use time
[0008]4. The problem of ceramic composite wood is that the hydrolysis and polycondensation process of the ceramic precursor sol injected into the wood is slow in the process of forming a gel, which leads to energy consumption and time consumption of raw materials. The volatilization loss is serious; and the ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Disperse 11.2g of vinyl tris(β-methoxyethoxy)silane in 200mL of absolute ethanol, disperse evenly by ultrasonic, then add 5.0g of SiO with an average particle size of 40nm 2 Particles, after ultrasonic dispersion for 2 hours, the solution was centrifuged, washed, and dried at low temperature to obtain surface-modified SiO 2 Nanoparticles; 1.0 g of surface-modified SiO 2 Nanoparticles were dispersed in an emulsion composed of 100mL water, 5g vinyl acetate (VAc), 1.0g sodium dodecylsulfonate and 2.5g p-nonylphenol polyoxyethylene ether. After ultrasonic emulsification for 1h, the system was transferred to a condenser containing N 2 Introduce the pipe and the reactor with electric stirring, the stirring speed is 250 rpm, add 0.05g potassium persulfate initiator, control the temperature at 70 ° C, and pass N 2 In the case of 12 hours of reaction, after the reaction is stopped, a small amount of gel filtration will be produced to obtain SiO with an average particle size of...

Embodiment 2

[0031] Disperse 7.6g of γ-aminopropylmethyldiethoxysilane in 200mL of absolute ethanol, ultrasonically disperse evenly, and then add 5.0g of SiO with an average particle size of 80nm 2 Particles, after ultrasonic dispersion for 2 hours, the solution was centrifuged, washed, and dried at low temperature to obtain surface-modified SiO 2 nanoparticles; 4.5 g of surface-modified SiO 2 Nanoparticles were dispersed in an emulsion composed of 300mL water, 40g methyl methacrylate (MMA), 2.0g sodium dodecylsulfonate and 6.5g p-nonylphenol polyoxyethylene ether. After ultrasonic emulsification for 2h, Transfer the system to a tank containing a condenser, N 2 Into the pipe and the electric stirring reactor, the stirring speed is 250 rpm, add 2.0g potassium persulfate initiator, control the temperature at 70°C, 2 In the case of the reaction for 6 hours, after the reaction is stopped, a small amount of gel filtration will be produced to obtain SiO with an average particle size of 330nm a...

Embodiment 3

[0034] Disperse 13.3g of γ-aminopropylmethyldiethoxysilane in 200mL of absolute ethanol, disperse evenly by ultrasonic, then add 5.0g of TiO with an average particle size of 80nm 2 Particles, after ultrasonic dispersion for 2 hours, the solution was centrifuged, washed, and dried at low temperature to obtain surface-modified TiO 2 nanoparticles; 3.5 g of surface-modified TiO 2 Nanoparticles were dispersed in an emulsion consisting of 250mL water, 10g methyl methacrylate (MMA), 5g butyl acrylate (BA), 5.0g sodium dodecylsulfonate and 5.5g p-nonylphenol ethoxylate In the process, after ultrasonic emulsification for 2 hours, the system was transferred to a 2 Introduce the pipe and the reactor with electric stirring, the stirring speed is 200 rpm, add 0.75g potassium persulfate initiator, control the temperature at 75 ° C, and pass N 2 In the case of the reaction for 6 hours, after the reaction is stopped, a small amount of gel filtration will be produced to obtain TiO with an a...

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PUM

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Abstract

The present invention is core-shell type multifunctional compound timber precursor liquid and its preparation process, and belongs to the field of building material technology. Nanometer inorganic particle is first surface modified and then is emulsion polymerized together with organic monomer containing double bond to prepare the core-shell type compound timber precursor liquid. The core-shell type multifunctional compound timber precursor liquid is applied in dipping timber for preparing compound timber. The core-shell type multifunctional compound timber precursor liquid has the high strength, high heat stability and high wear resistance of inorganic matter as well as high flexibility and less deformation of organic matter, and the timber modified with the precursor liquid has raised hardness and strength, enhanced fireproofing performance and corrosion resistance, and high endurance.

Description

technical field [0001] The invention relates to a core-shell type multifunctional composite wood precursor and a preparation method thereof. Specifically, the invention relates to an inorganic / organic polymer core-shell type wood modification precursor, which can be used to prepare multifunctional and high-performance composite wood, and belongs to the technical field of composite wood preparation in building materials. Background technique [0002] As a traditional material, wood has always been used by humans. In order to adapt to the development of the timber industry and the expansion of demand for timber, many countries in the world have planted and cultivated artificial forests on a large scale, and the results have been remarkable. This not only ensures the supply of timber, promotes economic development, but also increases forest resources and improves the ecological environment. . my country is a Shaolin country, lacking timber resources and few natural forests. I...

Claims

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Application Information

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IPC IPC(8): B27K3/52
Inventor 王群郭红霞李永卿王澈杜万里
Owner BEIJING PEIER MAOSEN TECH PROMOTION
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