A high-loading multi-effect filter material and its preparation method

A high-load, filter material technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of poor fiber spinnability, easy to generate static electricity, low fiber strength, etc., to enhance fiber spinnability, reaction Sufficient and enhanced conductivity effect

Active Publication Date: 2020-08-14
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing PTFE fibers are prone to static electricity in the process of making filter material, the spinnability of the fiber is poor and the fiber strength is low, and the load of other substances in the prepared filter material is small, and the load is firm. Degree difference etc.

Method used

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  • A high-loading multi-effect filter material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Pretreatment of polytetrafluoroethylene resin: store the polytetrafluoroethylene resin in a storage room with a temperature of 16°C for more than 5 days; take the static polytetrafluoroethylene resin and pass it through a 10-mesh sieve;

[0037] 2) Add graphene powder during the mixing and stirring process of polytetrafluoroethylene resin, graphene powder, aviation kerosene, and polytetrafluoroethylene resin are added according to the mass ratio of 0.5:20:100, and graphene is obtained through the membrane splitting process route / PTFE composite fiber;

[0038] Wherein, the process steps of membrane splitting method are:

[0039] a. Stir the mixture and send it to the drying room to stand for 60 hours. The temperature of the drying room is 60°C. After standing, it is pre-pressed and formed. The stirring speed is 10r / min. The stirring method is 20 minutes forward and 30 minutes reversed; The formed molding material is pushed and pressed to form a columnar molding mate...

Embodiment 2

[0046] 1) Pretreatment of polytetrafluoroethylene resin: store the polytetrafluoroethylene resin in a storage room with a temperature of 16°C for more than 5 days; take the static polytetrafluoroethylene resin and pass it through a 10-mesh sieve;

[0047] 2) Add graphene powder during the mixing and stirring process of polytetrafluoroethylene resin, graphene powder, aviation kerosene, and polytetrafluoroethylene resin are added in a mass ratio of 5:30:100, and graphene is obtained through the membrane splitting process route / PTFE composite fiber;

[0048] Wherein, the process steps of membrane splitting method are:

[0049] a. Stir the mixture and send it to the drying room to stand for 60 hours. The temperature of the drying room is 60°C. After standing, it is pre-pressed and formed. The stirring speed is 10r / min. The stirring method is 20 minutes forward and 30 minutes reversed; The formed molding material is pushed and pressed to form a columnar molding material;

[0050...

Embodiment 3

[0056] 1) Pretreatment of polytetrafluoroethylene resin: store the polytetrafluoroethylene resin in a storage room with a temperature of 16°C for more than 5 days; take the static polytetrafluoroethylene resin and pass it through a 10-mesh sieve;

[0057] 2) Add graphene powder during the mixing and stirring process of polytetrafluoroethylene resin, graphene powder, aviation kerosene, and polytetrafluoroethylene resin are added in a mass ratio of 10:40:100, and graphene is obtained through the process route of membrane splitting method / PTFE composite fiber;

[0058] Wherein, the process steps of membrane splitting method are:

[0059] a. Stir the mixture and send it to the drying room to stand for 60 hours. The temperature of the drying room is 60°C. After standing, it is pre-pressed and formed. The stirring speed is 10r / min. The stirring method is 20 minutes forward and 30 minutes reversed; The formed molding material is pushed and pressed to form a columnar molding materia...

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Abstract

The invention provides a high-load multi-function filter material, which includes a base cloth, a first multi-layer fiber web and a second multi-layer fiber web; the base cloth is made of PTFE yarn warp and weft interweaving; The layer fiber net is made of graphene / PTFE composite fiber and high-performance chemical fiber, and the second multi-layer fiber is made of high-performance chemical fiber; the high-performance chemical fiber is polyphenylene sulfide fiber, polyimide One or more of fiber, aramid fiber, Baodren fiber, polytetrafluoroethylene fiber, glass fiber and polypropylene fiber. The invention provides a high-loading multi-function filter material, which can effectively reduce the probability of static electricity generated by PTFE fibers in the production process, improve the spinnability and fiber strength of the fibers, and at the same time enable the filter material to obtain a larger specific surface area to provide More loading sites for PTFE, photocatalyst substances, denitrification catalysts, etc., providing a basis for functional integration.

Description

technical field [0001] The invention relates to a filter material prepared from composite fibers, in particular to a high-loading multiple-function filter material and a preparation method thereof. Background technique [0002] At present, the bag filter has been widely used in coal-fired power plants, cement plants, waste incineration plants and other industries. The ability of working conditions is poor, and the actual service life is mostly less than 3 years. Therefore, it has become a consensus in the industry to carry out post-finishing of filter bags to obtain better ability to adapt to working conditions. The current technical path is mainly to load PTFE emulsion, The effect of treatment agents such as water- and oil-repellent agents mainly depends on the performance, load capacity and load fastness of the treatment agent itself. [0003] With the increasing control of the environment by the country, the flue gas treatment system is constantly improving, and the flue...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01D53/86B01D53/56B01D46/02
CPCB01D39/14B01D46/023B01D53/8628B01D2239/04B01D2239/0407B01D2239/10Y02C20/30
Inventor 古俊飞周冠辰刘江峰徐辉
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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