A kind of epoxy-based macroporous/mesoporous polymer material and preparation method thereof

A polymer material, epoxy-based technology, applied in the direction of alkali metal oxides/hydroxides, alkali metal compounds, chemical instruments and methods, etc., to achieve the effects of extreme volatility, good mechanical strength, and low volatility
CN108940229BActive Publication Date: 2020-12-22NINGBO UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO UNIV
Publication Date
2020-12-22

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Abstract

The invention relates to an epoxy based macroporous / mesoporous polymer material and a preparation method thereof. The material is prepared by solidifying an epoxy resin / organic dispersion system in asolid state and washing the system to remove the dispersant. The material comprises macro holes with a size of 1 to 50 [mu]m and mesopores with an average pore size of 20 nm. The specific surface areareaches 230 m<2> / g or more, the porosity is greater than 90%, and the appearance density is less than 0.1 g / mL. During the preparation process, TMP(trimethylolpropane) is taken as the dispersant; dueto the proper affinity between TMP and epoxy resin E-51, the epoxy resin is dispersed; during the cooling process, pores are formed by the continuous crystallization; finally, TMP is water soluble and is washed off; pores can be formed by continuous crystallization without using any template and surfactant; epoxy resin is solidified in a solid state, the influence of phase separation on materialperformance is avoided; the continuity of internal morphology is guaranteed, at the same time, unique morphology features are formed in the material, the material is prepared without using any specialequipment or special condition, only one dispersant namely TMP is used, and moreover, TMP is cheap, barely volatile, and pollution free, can be recovered, and completely meets the requirements of green chemistry.
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Description

technical field

[0001] The invention relates to the technical field of polymer material synthesis, in particular to an epoxy-based macroporous / mesoporous polymer material and a preparation method thereof. The material is a porous material obtained based on a heterogeneous curing mechanism of epoxy resin. It has a wide pore size distribution from macropores to mesopores and a high specific surface area. Its preparation method is based on the principle of crystallization, and has the characteristics of simple method, low cost, high efficiency and environmental friendliness. Background technique

[0002] In separation science, a large number of polymer porous materials have been prepared and used as chromatographic fillers in the form of monolithic columns. This material requires its pore size distribution to be as uniform as possible, and the three-dimensional pores can be continuously connected, which is conducive to the stable flow of liquid in the chromatographic column. Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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