Single-layer supporting multifunctional air filter membrane

An air filtration and multi-functional technology, applied in the field of air filtration and polymer materials, can solve the problems of complex structure, few single-layer functions, single-layer air filtration membrane with single function, etc., and achieve the effect of simple production method and high filtration efficiency.

Inactive Publication Date: 2016-08-10
清北高科(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the single-layer air filter membranes on the market have single functions, and most of them use physical interception to achieve filtration.
Even if a multifunctional filter membrane is used, its single layer has fewer functions. In order to achieve multifunctional filtration, multiple membranes must be combined to achieve the desired effect, and the structure is complex.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The invention uses one or more of PES, PEEK, PEKK, and PPS as basic materials, and utilizes solution electrospinning technology to produce a single-layer self-supporting multifunctional air filter membrane with nanoscale fiber holes. The specific production steps are as follows: First, prepare mixed solutions of base materials and solvents with different mass fractions, and fully stir until the solution is uniform; then, weigh a certain amount of nano-TiO 2 Powder and a certain amount of negative ion powder are added to the solution, and a certain amount of coupling agent is added dropwise, and stirred for 2 hours; secondly, treated with ultrasonic equipment for 10-15 minutes, then dispersed twice with a sand mill, and stirred again until Nano-TiO 2 The powder and negative ion powder are evenly dispersed and defoamed; finally, the treated solution is added to the solution electrospinning device for spinning, and a single-layer self-supporting multifunctional air filter ...

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PUM

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Abstract

The invention provides a single-layer supporting multifunctional air filter membrane and a preparation method thereof, and belongs to the field of high molecular materials and the field of air filtering. Polyethersulfone which has the advantages of great hydrophobicity and rigidity, good wear resistance and molding property, high intensity, and easiness of cleaning ash and others are used as base materials, and the base materials and a solvent are prepared into a solution; nano TiO2 powder with capabilities of absorbing ultraviolet rays and removing harmful substances including formaldehyde, and negative ion powder which has sterilization and antibacterial functions and a certain deodorization property are added, so that multifunction is realized; the solution is subjected to electrostatic spinning to prepare a nano fiber membrane; self-supporting and washable functions are realized; and the prepared filter membrane is simple in structure, has more functions, can be washed and can be repeatedly utilized.

Description

technical field [0001] The invention relates to a single-layer supportive multifunctional air filter membrane and a preparation method thereof, in particular to a single-layer air filter membrane integrating self-support and multifunctionality, belonging to the fields of polymer materials and air filtration . Background technique [0002] At present, the single-layer air filter membranes on the market have single functions, and most of them use physical interception to achieve filtration. Even if a multifunctional filter membrane is used, its single layer has fewer functions. In order to achieve multifunctional filtration, multiple membranes must be combined to achieve the desired effect, and the structure is complex. The present invention is to solve the problem of concentrating the multifunctionality of air filtration membranes on a single layer membrane. The materials involved in the present invention include high-performance plastics such as polyethersulfone, solvents,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/68B01D71/52B01D69/08B01D67/00B01D53/22
CPCB01D53/228B01D67/0079B01D69/08B01D71/52B01D71/68B01D2323/39
Inventor 刘勇张少鹏邢长民
Owner 清北高科(北京)科技有限公司
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