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Multifunctional composite film material and production process thereof

A composite membrane and multi-functional technology, applied in the field of gas purification, can solve the problems of short service life, low dust removal rate, inability to remove harmful gases, etc., and achieve the effect of long service life and efficient removal effect

Inactive Publication Date: 2016-12-21
JIANGSU JIULANG HIGH TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low dust removal rate, short service life and inability to remove harmful gases in existing air filter materials. Multifunctional composite membrane material with long service life and its production process

Method used

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  • Multifunctional composite film material and production process thereof
  • Multifunctional composite film material and production process thereof
  • Multifunctional composite film material and production process thereof

Examples

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Embodiment 1

[0033] A multifunctional composite membrane material, which sequentially includes an antibacterial fiber layer, a membrane layer, a functional particle layer, and a non-woven support layer from outside to inside. The antibacterial fiber layer is prepared by mixing polyester with antibacterial material nano-silver after melting, and spinning on the surface of the membrane material by a melt-blown method. The film layer is composed of hydrophobic and oleophobic polytetrafluoroethylene porous film, which is made by depositing a layer of perfluorododecanoic acid monomolecular film on the surface of ordinary polytetrafluoroethylene film by self-assembly technology, and the oil contact angle is greater than 100°, the water contact angle is greater than 100°. The thickness of PTFE porous membrane is 0.1μm, the pore size is 5μm, and the air permeability is 10m 3 / m 2 h Pa; the thickness of the antibacterial fiber layer is 50 μm, the fiber diameter is 500 nm, and the fiber material i...

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Abstract

The invention relates to a multifunctional composite film material and a production process thereof. The composite film material sequentially comprises an antibacterial fiber layer, a film layer, a functional particle layer and a non-woven fabric support layer from exterior to interior. The production process comprises the following steps: (1) unwinding and tiling the non-woven fabric support layer and performing dot glue spraying on the non-woven fabric; (2) uniformly dispersing the functional particle layer on the non-woven fabric support layer; (3) covering the functional particle layer with a hydrophobic and oleophobic film material; (4) mixing and stirring polyester or polymer polypropylene with an antibacterial material, and spinning on the surface of the film material through a melt blown process; and (5) fixing the non-woven fabric support layer, the functional particle layer, the film layer and the antibacterial fiber layer through an ultrasonic generation device. According to the invention, materials of different functions are combined into a whole in a layer-to-layer compounding manner, so that particulate matters and volatile organic compounds in air can be effectively removed.

Description

technical field [0001] The invention relates to the field of gas purification, in particular to a multifunctional composite membrane material and a production method thereof. Background technique [0002] In recent years, my country's air pollution has been severe, and protective products such as masks and air purifiers have been popularized. The currently used mask materials and air purifier filter materials are mainly melt-blown non-woven fabrics. The mechanism of melt-blown non-woven fabrics to purify air is mechanical interception and electrostatic adsorption, but the static electricity carried by melt-blown non-woven fabrics is easy to eliminate. Simple mechanical interception cannot remove small-sized dust, and the filtration efficiency is low and the service life is short. Melt-blown non-woven fabric has a single function. It can only remove particulate matter in the air, but cannot remove harmful gases. The multi-layer non-woven fabric composite material is made of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/36B01D53/22B01D67/00B01D46/00B32B9/00B32B9/04B32B27/02B32B27/32B32B3/24B32B33/00B32B37/12B32B37/24B32B37/00
CPCB01D46/0001B01D53/228B01D67/0002B01D71/36B01D2258/06B01D2275/10B01D2325/10B32B3/266B32B5/022B32B5/24B32B5/30B32B27/14B32B27/322B32B33/00B32B37/00B32B37/1284B32B37/24B32B2037/243B32B2255/10B32B2255/26B32B2264/108B32B2307/7145B32B2307/724B32B2437/00
Inventor 仲兆祥武军伟周群张峰
Owner JIANGSU JIULANG HIGH TECH CO LTD
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