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A kind of solid amine interpenetrating network porous amino resin and its preparation method and application

A technology of interpenetrating network and amino resin, which is applied in the field of solid amine interpenetrating network porous amino resin and its preparation, can solve the problems of inability to realize physical and chemical synergistic adsorption and low swelling of porous materials, and achieve synergistic adsorption and preparation Adsorption capacity, easy after-treatment effect

Active Publication Date: 2018-09-04
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems in the prior art that the preparation of porous materials requires high temperature and long-term water heating, the inability to realize physical and chemical synergistic adsorption, and the low swelling of porous materials. 2 The simple and low-temperature preparation method of the interpenetrating network porous amino resin that realizes high-efficiency adsorption uses dimethyl sulfoxide and a low-boiling point solvent as co-solvents, and melamine and formaldehyde as polymerized monomers. During the synthesis process, acrylamide is directly pre- The polymer is introduced into the nanopore of the amino resin to form a physically entangled interpenetrating network structure, and after amination, a rapidly swellable and CO 2 Solid Amine Interpenetrating Network Porous Amino Resin Material Realizing Physical and Chemical Synergistic Efficient Adsorption

Method used

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  • A kind of solid amine interpenetrating network porous amino resin and its preparation method and application
  • A kind of solid amine interpenetrating network porous amino resin and its preparation method and application

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Experimental program
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Embodiment 1

[0038] 1. Prepare solid amine interpenetrating network porous amino resin, the steps are as follows:

[0039] (1) Take 18mmol of melamine and 45mmol of paraformaldehyde, and add the two to 20ml of a mixed solution of dimethyl sulfoxide (DMSO) and water (wherein DMSO and H 2 The volume ratio of O is 3:1), forming a melamine formaldehyde solution with a total monomer concentration of 3.15mmol / ml, heating up to 80°C and stirring to dissolve. When the solution is clear, continue stirring for 1 h to obtain a prepolymer of melamine and formaldehyde, cool to room temperature, and set aside.

[0040] (2) Dissolve 1.4g of acrylamide in 5ml of water, stir and reflux at 45°C for 10 minutes to obtain an acrylamide prepolymer, cool to room temperature for later use; pour the acrylamide prepolymer into the prepolymer of melamine and formaldehyde, and then Add a certain amount of hydrochloric acid to adjust its pH to 6, stir evenly, transfer to a reaction kettle, heat up to 140°C for hydrot...

Embodiment 2

[0047] 1. Prepare solid amine interpenetrating network porous amino resin, the steps are as follows:

[0048] (1) Take 12mmol of melamine and 30mmol of paraformaldehyde, and add the two to 20ml of a mixed solution of dimethyl sulfoxide (DMSO) and water (wherein DMSO and H 2 The volume ratio of O is 3:1), forming a melamine-formaldehyde solution with a total monomer concentration of 2.1 mmol / ml, heating up to 90°C and stirring to dissolve. When the solution is clear, continue stirring for 1 h to obtain a prepolymer of melamine and formaldehyde, cool to room temperature, and set aside.

[0049] (2) Dissolve 1.0g of acrylamide in 5ml of water, stir and reflux at 65°C for 30 minutes to obtain an acrylamide prepolymer, cool to room temperature for later use; pour the acrylamide prepolymer into the prepolymer of melamine and formaldehyde, and then Add a certain amount of hydrochloric acid to adjust its pH to 6.5, stir evenly, move it into a reaction kettle, heat up to 140°C and hea...

Embodiment 3

[0053] 1. Prepare solid amine interpenetrating network porous amino resin, the steps are as follows:

[0054] (1) Take 16mmol of melamine and 40mmol of paraformaldehyde, and add the two to 20ml of a mixed solution of dimethyl sulfoxide (DMSO) and water (wherein DMSO and H 2 The volume ratio of O is 3:1), forming a melamine-formaldehyde solution with a total monomer concentration of 2.8mmol / ml, heating up to 90°C and stirring to dissolve. When the solution is clear, continue stirring for 1 h to obtain a prepolymer of melamine and formaldehyde, cool to room temperature, and set aside.

[0055] (2) Dissolve 1.8g of acrylamide in 5ml of water, stir and reflux at 55°C for 60 minutes to obtain an acrylamide prepolymer, cool to room temperature for later use; pour the acrylamide prepolymer into the prepolymer of melamine and formaldehyde, and then Add a certain amount of hydrochloric acid to adjust its pH to 7.0, stir evenly, then transfer to a reaction kettle, heat up to 140°C and ...

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Abstract

The invention discloses solid amine interpenetrating network porous amino resin and its preparation method and use. The preparation method comprises uniquely introducing polyacrylic acid into porous amino resin so that interpenetrating network porous amino resin is obtained and carrying out further amination treatment to obtain the solid amine interpenetrating network porous amino resin for physical and chemical combined adsorption of CO2 so that an adsorption amount is substantially improved. In preparation of the interpenetrating network porous amino resin, the preparation method is free of a pore forming agent, a catalyst and an initiator and realizes interpenetrating network porous amino resin preparation through direct solvent-based thermopolymerization at a low temperature. The product has strong stability, can be simply and easily prepared, can be massively produced, does not produce odor and toxic gas, can be post-treated simply and can satisfy green production requirements. Through use of acrylic acid, the product greatly improves swelling properties than those of the porous amino resin, can be fast swelled directly through water, can improve an amination reagent grafting amount and can realize physical and chemical combined high efficiency adsorption of CO2.

Description

technical field [0001] The invention relates to the technical field of material synthesis, more specifically, to a solid amine interpenetrating network porous amino resin and its preparation method and application. Background technique [0002] Amino resin is a general term for compounds containing amino groups, such as urea, melamine, formaldehyde and alcohols, which are formed by polycondensation. Among them, melamine-formaldehyde resin (MF for short) is an important amino resin; melamine-formaldehyde resin is made of melamine and formaldehyde. Synthesized a class of high comprehensive performance polymer materials containing rigid triazine ring and nitrogen heterocyclic structure. In recent years, its related research and application have been developed rapidly. MF is used in drug loading, metal ion detection, heterogeneous catalysis and gas selection Adsorption and other fields have been widely used, especially in CO 2 The application of gas adsorption separation is mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30B01D53/02
CPCB01D53/02B01D2257/504B01J20/26Y02C20/40
Inventor 陈水挟阴凤琴许腾
Owner SUN YAT SEN UNIV
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