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Phenolic resin microspheres with concave-convex structure and preparation method thereof

A technology of phenolic resin and concave-convex structure, applied in the field of concave-convex structure phenolic resin microspheres and its preparation, can solve the problems of difficult waste disposal and high processing costs, and achieve easy activation to form pores, high carbonization yield, and excellent thermal stability Effect

Active Publication Date: 2020-11-03
沙县宏盛塑料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a kind of concavo-convex structure phenolic resin microsphere and its preparation method, to solve the production of traditional smooth surface phenolic resin microsphere structure. The waste generated in the process is difficult to deal with and the cost is high

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  • Phenolic resin microspheres with concave-convex structure and preparation method thereof
  • Phenolic resin microspheres with concave-convex structure and preparation method thereof

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preparation example Construction

[0024] According to another aspect of the present application, there is provided a method for preparing the concave-convex structure phenolic resin microspheres, at least comprising the following steps:

[0025] 1) dissolving the thermoplastic phenolic resin in an alkaline solution to obtain an alkaline phenolic resin solution A;

[0026] 2) Mixing the phenolic resin acidic waste water with the solution A, heating and reacting;

[0027] 3) After separation and drying, the phenolic resin microspheres are obtained.

[0028] Further, the thermoplastic phenolic resin can be a phenolic resin familiar to those skilled in the art, such as phenol-formaldehyde resin, resorcinol-formaldehyde resin, 3-aminophenol-formaldehyde resin, bisphenol A-formaldehyde resin or various modified Resins, including but not limited to one or more of cardanol modified phenolic resin, boron modified phenolic resin, silicon modified phenolic resin, selenium modified phenolic resin.

[0029] Further, the ...

Embodiment 1

[0040] Thermoplastic phenol-formaldehyde resin 2g is dissolved in 50ml aqueous sodium hydroxide solution to obtain alkaline phenolic resin solution; 50g phenolic resin acidic wastewater (pH is 2.3, phenol content is 2512mg / L, aldehyde content is 5548mg / L, COD is 38546mg / L.) mixed with alkaline phenolic resin solution, adjusted to pH 8.5, heated to 100°C for 8 hours; centrifuged at 5000r / min for 5min, then dried in an oven at 120°C to obtain phenolic resin microspheres. The prepared phenolic phenolic resin microspheres have an average particle size of 268nm and a surface specific surface area of ​​48m 2 / g, please refer to figure 1 .

[0041] Wherein, the microsphere specific surface area is physical adsorption specific surface area, which can be obtained according to GB / T19587-2004 gas adsorption BET method, the surface specific surface area is calculated by t-Plot method, and the average particle size is tested by laser particle size analyzer.

Embodiment 2

[0043] Thermoplastic phenol-formaldehyde resin 2g is dissolved in 50ml aqueous sodium hydroxide solution to obtain alkaline phenolic resin solution; 95g phenolic resin acidic wastewater (pH is 1.8, phenol content is 965mg / L, aldehyde content is 4560mg / L, COD is 18322mg / L.) mixed with alkaline phenolic resin solution, adjusted to pH 8.0, heated to 100°C for 12h; separated by a centrifuge at 5000r / min for 5min, then dried in an oven at 120°C to obtain phenolic resin microspheres. The prepared phenolic phenolic resin microspheres have an average particle size of 186nm and a surface specific surface area of ​​51m 2 / g.

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Abstract

The invention relates to the field of chemical synthetic resin microspheres, in particular to phenolic resin microspheres with a concave-convex structure and a preparation method thereof. The preparation method at least comprises the following steps: dissolving thermoplastic phenolic resin in an alkaline solution to obtain an alkaline phenolic resin solution A, mixing phenolic resin acidic wastewater with the solution A, heating to react, separating and drying to obtain the phenolic resin microspheres. The phenolic resin microspheres with the concave-convex structure, disclosed by the invention, have the beneficial effects that the main component is phenolic resin, and the phenolic resin microspheres have the advantages of high carbonization yield, easiness in activation and pore forming,excellent thermal stability and the like; the surface structure of the material is in a concave-convex spherical shape, and has rich apparent structures, and the microspheres can be used as an electrode material for preparing a new energy storage device. As a method for preparing the microspheres, the method has the advantages of being simple, environmentally friendly and low in cost, the reactiondoes not need to be carried out in a high-pressure reaction kettle, and the method is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the field of chemical synthetic resin microspheres, in particular to a concave-convex structure phenolic resin microsphere and a preparation method thereof. Background technique [0002] New energy refers to energy that has just been developed and utilized or is being actively researched and yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy, etc., which have the advantages of low cost, environmental protection and renewable. The current energy and environmental issues have always been hot issues of global concern. To solve environmental problems, we must first use clean energy to replace fossil fuels. Solar energy and wind energy are the most promising alternative energy sources. However, their intermittent characteristics hinder their development. Large-scale applications require the development of new energy storage devices. [0003] Energy storag...

Claims

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Application Information

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IPC IPC(8): C08J3/12C08L61/06C08L61/14
CPCC08J3/12C08J2361/06C08J2361/14
Inventor 黄世俊罗建峰艾生儿张振伟
Owner 沙县宏盛塑料有限公司