Functional supramolecular aerogel as well as preparation method and application thereof

A supramolecular and functional technology, applied in the field of aerogels, can solve the problems of high cost, complicated methods, and poor functional diversity of products

Active Publication Date: 2021-07-16
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Aerogels can be divided into inorganic oxide aerogels, organic aerogels, and metal aerogels according to their composition. At present, most of the research on aerogels focuses on carbon, silicon, and polymer aerogels. , often have defects such as high cost, complicated method and poor product function diversity, providing a preparation method of airgel that is easier to realize and has a higher degree of functionality is one of the important ways to promote the industrial application of airgel one

Method used

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  • Functional supramolecular aerogel as well as preparation method and application thereof
  • Functional supramolecular aerogel as well as preparation method and application thereof
  • Functional supramolecular aerogel as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1-1

[0049] This embodiment provides a method for preparing a two-component hydrogel, the process flow of which is as follows figure 1 shown, including the following steps:

[0050] Step 1. Put raw material A, raw material B and water in a glass airtight container, and keep the airtight container at a temperature of 90° C. for 8 minutes with a KDM type electric heating mantle to obtain a clear two-component aqueous solution; the clear Contains two-component aqueous solutions such as figure 1 Shown in A; The sum of the quality of described raw material A and raw material B is 10mg, and the ratio of the amount of substance of described raw material A and raw material B is 3:1, and described raw material A is melamine, and described raw material B is isocyanamide Nicotinic acid; the volume of the water is 1mL; the KDM electric heating mantle is purchased from Beijing Houhui Experimental Instrument Technology Co., Ltd.;

[0051] Step 2. Put the two-component aqueous solution describe...

Embodiment 1-2

[0053] This embodiment provides a method for preparing a two-component hydrogel, comprising the following steps:

[0054] Step 1. Put raw material A, raw material B and water in a glass airtight container, and keep the airtight container at a temperature of 85° C. for 10 minutes with a KDM type electric heating mantle to obtain a two-component aqueous solution; the raw material A and raw material The sum of the mass of B is 10 mg, the ratio of the amount of the raw material A and raw material B is 1:1, the raw material A is melamine, and the raw material B is isonicotinic acid; the volume of the water is 1 mL;

[0055] Step 2. Put the two-component aqueous solution described in step one at room temperature until there is no liquid phase flow in the glass airtight container when the glass airtight container is turned over to obtain a homogeneous two-component hydrogel, MI A 11. The room temperature is 20° C. to 25° C., and the standing time is 60 minutes.

Embodiment 1-3

[0057] This embodiment provides a method for preparing a two-component hydrogel, comprising the following steps:

[0058] Step 1. Put raw material A, raw material B and water in a glass airtight container, and keep the airtight container at a temperature of 95° C. for 5 minutes with a KDM type electric heating mantle to obtain a clear two-component aqueous solution; the raw material A And the sum of the quality of raw material B is 10mg, and the ratio of the amount of substance of described raw material A and raw material B is 1:3, and described raw material A is melamine, and described raw material B is isonicotinic acid; The volume of described water is 1mL;

[0059] Step 2. Put the two-component aqueous solution described in step 1 at room temperature until there is no liquid phase flow in the glass airtight container when the glass airtight container is turned over to obtain a homogeneous two-component hydrogel MI A 13. The room temperature is 20° C. to 25° C., and the st...

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Abstract

The invention discloses functional supramolecular aerogel as well as a preparation method and application thereof. The functional supramolecular aerogel is prepared by freezing and freeze-drying bi-component hydrogel, and the bi-component hydrogel comprises a raw material A and a raw material B. In addition, the invention also provides a method for preparing the aerogel, a method for applying the aerogel, functional supramolecular aerogel for sound insulation and functional supramolecular aerogel for organic solvent absorption. The supramolecular aerogel with a three-dimensional supramolecular network structure is creatively obtained by taking small organic molecules as a gelling agent raw material, the supramolecular aerogel is an elastic solid material which has the same volume as a bi-component hydrogel and the lower limit of the density regulation range of 4mg / cm<3>, and the supramolecular aerogel has good reversibility and stimuli responsiveness, is easy to degrade, shows huge advantages in the fields of sound insulation, organic solvent absorption and the like, and has the characteristics of simple preparation method, low cost, energy conservation, environment friendliness and the like.

Description

technical field [0001] The invention belongs to the technical field of airgel, and in particular relates to functional supramolecular airgel, its preparation method and application. Background technique [0002] Airgel is a composite system in which gas replaces the position of liquid in the pores of the three-dimensional network of the gel. As a superporous material, airgel is known as "the magic material that changes the world in the 21st century". The unique structure makes it have many excellent properties and has a wide range of application prospects. Aerogels can be divided into inorganic oxide aerogels, organic aerogels, and metal aerogels according to their composition. At present, most of the research on aerogels focuses on carbon, silicon, and polymer aerogels. , often have defects such as high cost, complicated method and poor product function diversity, providing a preparation method of airgel that is easier to realize and has a higher degree of functionality is...

Claims

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Application Information

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IPC IPC(8): B01J13/00
CPCB01J13/0091
Inventor 李远刚陈永杨宗霖李华静杨容周安宁梁耀东
Owner XIAN UNIV OF SCI & TECH
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