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Nonwoven material composed of composite fibers with core-spun yarn structure and its preparation method

A technology of non-woven materials and composite fibers, which is applied in the field of fiber textile materials to achieve the effect of improving surface activity and specific surface area

Active Publication Date: 2021-07-27
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there has been no report on the preparation of metal-organic frameworks in the form of nanofibers and their application in combination with traditional nonwoven materials.

Method used

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  • Nonwoven material composed of composite fibers with core-spun yarn structure and its preparation method
  • Nonwoven material composed of composite fibers with core-spun yarn structure and its preparation method
  • Nonwoven material composed of composite fibers with core-spun yarn structure and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Cut a piece of PP nonwoven fabric with a radius of 3 cm, and place it in a drying oven at 100° C. to dry. Prepare 100 mL of 1mol / L Tri-HCl buffer solution, then weigh 2g of PEI and add it to 1mol / L Tri-HCl buffer solution, stir to dissolve, and then adjust the pH value of the buffer solution to 8.5 with sodium hydroxide (NaOH) solution; Then take by weighing 3g of DOPA-HCl and add in the 1mol / L Tri-HCl buffer solution that is dissolved with PEI, stir and dissolve, promptly obtain containing PEI and Tri-HCl buffer solution; quickly transfer the prepared reaction system to a container with a PP nonwoven fabric with a radius of 3cm in advance, and react at 37°C for 24h; wash the reacted nonwoven material with water several times to obtain PDA / PEI-PP non-woven fabric, and sealed in the pure water system for use; Weigh 2mmol of Eu(NO 3 ) 3 ·6H 2 O was dissolved in 20 mL of ethanol and 10 mL of deionized water, and 1 mmol of trimesic acid was dissolved in 6 mL of ethanol...

Embodiment 2

[0039] Cut a piece of PP nonwoven fabric with a radius of 3 cm, and place it in a drying oven at 100° C. to dry. Prepare 200 mL of 1mol / L Tri-HCl buffer solution, then weigh 3g of PEI and add it to 1mol / L Tri-HCl buffer solution, stir to dissolve, and then adjust the pH value of the buffer solution to 8.5 with sodium hydroxide (NaOH) solution; Then take by weighing 3g of DOPA-HCl and add in the 1mol / L Tri-HCl buffer solution that is dissolved with PEI, stir and dissolve, promptly obtain containing PEI and Tri-HCl buffer solution; quickly transfer the prepared reaction system to a pre-prepared container of PP nonwoven fabric with a radius of 3cm, shake and react at 37°C for 24h; wash the reacted nonwoven material several times with water to obtain PDA / PEI-PP nonwoven fabric, and sealed in pure water system for use; weigh 2mmol of Eu(NO 3 ) 3 ·6H 2 O was dissolved in 20mL of ethanol and 10mL of deionized water, weighed 1mmol of trimesic acid and dissolved in 6mL of ethanol a...

Embodiment 3

[0041] Cut a piece of PP nonwoven fabric with a radius of 3 cm, and place it in a drying oven at 100° C. to dry. Prepare 300 mL of 1mol / L Tri-HCl buffer solution, then weigh 4g of PEI and add it to 1mol / L Tri-HCl buffer solution, stir to dissolve, and then adjust the pH value of the buffer solution to 8.5 with sodium hydroxide (NaOH) solution; Then take by weighing 3g of DOPA-HCl and add in the 1mol / L Tri-HCl buffer solution that is dissolved with PEI, stir and dissolve, promptly obtain containing PEI and Tri-HCl buffer solution; quickly transfer the prepared reaction system to a pre-prepared container of PP nonwoven fabric with a radius of 3cm, shake and react at 37°C for 24h; wash the reacted nonwoven material several times with water to obtain PDA / PEI-PP nonwoven fabric, and sealed in pure water system for use; weigh 2mmol of Eu(NO 3 ) 3 ·6H 2 O was dissolved in 20mL of ethanol and 10mL of deionized water, weighed 1mmol of trimesic acid and dissolved in 6mL of ethanol a...

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Abstract

The invention discloses a non-woven material composed of composite fibers with a core-spun yarn structure and a preparation method thereof, belonging to the technical field of fiber textile materials. The non-woven material is a non-woven micron fiber, a polydopamine / polyethyleneimine layer coated on the surface of the non-woven micron fiber from inside to outside, and a metal organic framework nanometer for connecting the polydopamine / polyethyleneimine layer. Composite fibers composed of fibers with a core-spun yarn structure are randomly piled up and wound in three-dimensional space; among them, the non-woven micron fiber is the core layer of the core-spun yarn structure, and the metal-organic framework nanofiber is the core-spun yarn-like structure. Structure of the cortex. The nonwoven material has porosity and good flexibility, and has broad application prospects in filtration, adsorption, catalysis and separation.

Description

technical field [0001] The invention relates to composite fibers and belongs to the technical field of fiber textile materials, in particular to a non-woven material composed of composite fibers with a core-spun yarn structure and a preparation method thereof. Background technique [0002] Nonwoven material is a kind of flexible porous material with various morphological structures and high porosity, which has broad application prospects in industrial technology fields such as filtration and separation; this kind of material is easy to be functionalized, and through various modification methods, it can give nonwoven Material adsorption, catalysis and other functions expand the application fields of nonwoven materials. [0003] Metal-organic frameworks, or MOFs for short, are organic-inorganic hybrid materials with intramolecular pores formed by the self-assembly of organic ligands and metal ions or clusters through coordination bonds. In MOFs, the arrangement of organic lig...

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/37D06M15/61D06M101/20
CPCD06M15/37D06M15/61D06M2101/20
Inventor 刘轲王栋王旭程盼李沐芳刘琼珍蒋海青王雯雯鲁振坦
Owner WUHAN TEXTILE UNIV
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