Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of multilevel pore size distribution material

A pore size distribution and fiber technology, which is applied in the field of preparation of multi-level pore size distribution materials, can solve the problems of material limitation and complex synthesis steps of porous materials, and achieve the effects of simple preparation method, improved fluid passing performance, and avoiding brittleness

Active Publication Date: 2018-11-27
UNIV OF SCI & TECH BEIJING
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to solve the technical problems of complex synthesis steps and limited materials in existing porous materials.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of multilevel pore size distribution material
  • A kind of preparation method of multilevel pore size distribution material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a multi-level pore size distribution material, specifically:

[0029] (1) Preparation of coarse functionalized fibers and fine functionalized fibers:

[0030] 1) Preparation of fine functionalized fibers: the fine functionalized fibers in this example are chitosan nanofibers, and the preparation process is to dissolve chitosan in a mixed solvent of hexafluoroisopropanol and acetic acid to obtain a mass concentration of 7% spinning solution, the spinning solution is prepared by electrospinning to obtain chitosan nanofibers with a diameter of 300 nm; the mixed solvent of hexafluoroisopropanol and acetic acid is hexafluoroisopropanol It is prepared by mixing with acetic acid at a mass ratio of 3:2; the preparation conditions of the electrospinning method are: voltage 15 kV, control receiving distance 15 cm; fine functionalized fibers with a diameter between 150nm and 750nm, with polymer fiber toughness;

[0031] 2) Preparation of coarse functionali...

Embodiment 2

[0035] A method for preparing a multi-level pore size distribution material, specifically:

[0036] (1) Preparation of coarse functionalized fibers and fine functionalized fibers:

[0037] 1) Preparation of coarse functionalized fibers: the coarse functionalized fibers in this example are short glass fibers, and the preparation process is to prepare short glass fibers with a diameter distribution of 100um by pool kiln drawing; the short glass fibers are inorganic fibers The material has good rigidity;

[0038]2) Preparation of fine functionalized fibers: the fine functionalized fibers in this example are polyacrylic acid fibers, and the preparation process is to prepare polyacrylic acid fibers with a diameter of 400nm-550nm by dry spinning; the polyacrylic acid fibers are high Molecular materials, when the diameter is 400nm-550nm, it has good toughness; combined with the toughness of fine functional fibers and the rigidity of inorganic fiber materials (glass short fibers), th...

Embodiment 3

[0043] A method for preparing a multi-level pore size distribution material, specifically:

[0044] (1) Preparation of coarse functionalized fibers and fine functionalized fibers:

[0045] 1) Preparation of coarse functionalized fibers: the coarse functionalized fibers in this example are silver fibers, and the preparation process is to prepare silver fibers with a diameter distribution of 20um-40um by template method;

[0046] 2) Preparation of fine functionalized fibers: the fine functionalized fibers in this example are polylactic acid fibers, and the preparation process adopts electrospinning process to prepare polylactic acid nanofibers with a diameter of 300nm-350nm;

[0047] (2) Homogenization treatment: According to the mass ratio of the silver fiber and the polylactic acid fiber being 1:150, weigh the silver fiber and the polylactic acid fiber prepared in step (1), and put them into the opening Mixing and opening treatment is carried out in the machine to obtain homo...

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of material preparation, and particularly relates to a preparation method of a multi-stage pore-size distribution material. The preparation method comprises the following steps: firstly, preparing functional fibers, wherein chemical groups are arranged on the surfaces of the functional fibers; then, homogenizing the functional fibers to obtain homogenized functional fibers; performing crosslinking treatment on the homogenized functional fibers to obtain the multi-stage pore-size distribution material. The multi-stage pore-size distribution material prepared in the invention has multi-stage pore-size distribution, good adsorption properties, good flexibility and processibility, simple processes, high universality and low equipment requirements, can be subjected to industrial production, and has broad application prospects in many fields.

Description

technical field [0001] The invention mainly belongs to the field of material preparation, and in particular relates to a preparation method of a multi-stage pore size distribution material. Background technique [0002] Although researchers have made great progress in the study of microporous, mesoporous, and macroporous materials in terms of structure, composition, and morphology, they have been widely used in catalysis, adsorption, separation, sensing, and biological science and technology. field. However, in many application fields, microporous, mesoporous, and macroporous materials still have their own advantages and disadvantages. At present, there is still an urgent need to develop new materials that combine the advantages of various pore structures, that is, to construct hierarchical pores according to application needs and structural characteristics. Material. [0003] Multi-level porous materials, on the one hand, can choose to combine the advantages of all levels...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/00D01F6/62D06M10/00C08J3/24D06M101/02D06M101/32
CPCC08J3/246C08J2305/08C08J2367/04D01F6/62D01F9/00D06M10/00D06M2101/02D06M2101/32
Inventor 温永强李延生
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com