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

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...

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 reaction is incomplete or the formed SiO2 gel has poor loss resistance

The current development trend is that the organic molecular chains of metal alkoxides are getting bigger and bigger, and multiple inorganic components are compounded, but the metal alkoxides with large molecules are expensive and not suitable for large-scale production

[0009]5. The wood modification precursor liquid formed after mixing the inorganic component and the organic component has complex components, and due to the interface between the inorganic component and the organic component Compatibility problems make the inorganic matter dispersed in the organic matter unevenly, resulting in unstable performance of the modified material