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Manufacturing method of anti-static filtering material and anti-static filtering material

A technology of filter material and production method, which is applied in the field of materials to achieve the effect of avoiding electrostatic hazards

Inactive Publication Date: 2022-03-11
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to effectively solve the electrostatic problem of polytetrafluoroethylene fiber and improve its spinnability and strength.

Method used

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  • Manufacturing method of anti-static filtering material and anti-static filtering material
  • Manufacturing method of anti-static filtering material and anti-static filtering material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Modified nano tourmaline

[0036] The nano-tourmaline that takes 5g joins and joins in the 30ml toluene and the water mixed solvent that solid-liquid ratio is 1:6, is placed on there-necked flask then, adds coupling agent (isopropyl trititanic acid) in flask, makes in whole The mass fraction of the coupling agent in the mixture system is 2%. Add the reaction solvent toluene to the flask, and continue the reaction in an oil bath at 90°C for 3 hours. Then wash with distilled water and absolute ethanol for 3 times, put it in a centrifuge at a speed of 8000r / min for centrifugation, and dry it at 80°C after centrifugation to obtain surface-modified tourmaline, and grind it to 10nm particle size;

[0037] 2. Preparation of PTFE / tourmaline blend fiber

[0038] PTFE micropowder and modified tourmaline are mixed according to a certain mass ratio, and then mixed with aviation kerosene, PTFE micropowder: modified tourmaline: aviation kerosene = 17:3:5.3, and the mixed powder...

Embodiment 2

[0044] 1. Modified nano tourmaline

[0045] The nano-tourmaline that takes 7g joins and joins in the 42ml toluene and the water mixed solvent that solid-liquid ratio is 1:6, is placed on there-necked flask then, adds coupling agent (isopropyl trititanic acid) in flask, makes in whole The mass fraction of the coupling agent in the mixture system is 1%. Add the reaction solvent toluene to the flask, and continue the reaction in an oil bath at 90°C for 3 hours. Then wash with distilled water and absolute ethanol for 3 times, put it in a centrifuge at a speed of 5000r / min for centrifugation, and dry it at 60°C after centrifugation to obtain surface-modified tourmaline, and grind it to 60nm particle size.

[0046] 2. Preparation of PTFE / tourmaline blended fiber

[0047] PTFE micropowder and modified tourmaline are mixed according to a certain mass ratio, and then mixed with aviation kerosene, PTFE micropowder: modified tourmaline: aviation kerosene = 17:3:5.3, and the mixed powd...

Embodiment 3

[0053] 1. Modified nano tourmaline

[0054] The nano-tourmaline that takes by weighing 10g joins in the 60ml toluene and the water mixed solvent that solid-liquid ratio is 1:6, is placed in there-necked flask then, adds coupling agent (isopropyl trititanic acid) in flask, makes in whole The mass fraction of the coupling agent in the mixture system is 3%. Add the reaction solvent toluene to the flask, and continue the reaction in an oil bath at 90°C for 3 hours. Then wash with distilled water and absolute ethanol for 3 times, put it in a centrifuge at a speed of 6000r / min for centrifugation, and dry it at 70°C after centrifugation to obtain surface-modified tourmaline, and grind it to 100nm .

[0055] 2. Preparation of PTFE / tourmaline blended fiber

[0056] PTFE micropowder and modified tourmaline are mixed according to a certain mass ratio, and then mixed with aviation kerosene, PTFE micropowder: modified tourmaline: aviation kerosene = 17:3:5.3, and the mixed powder is age...

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Abstract

The invention provides a manufacturing method of an anti-static filtering material and the anti-static filtering material. PTFE micro powder, isopropyl tri (dioctyl phosphate acyloxy) titanic acid, tourmaline and vinylidene fluoride are blended and extruded into a rod-shaped object according to a certain proportion, and multi-component improved PTFE fibers are prepared through rolling film forming and film cracking. The composite fibers are subjected to opening, mixing, fine opening, carding, lapping and needling to form the improved fiber filter material. The modified PTFE fiber has the advantages that due to the existence of tourmaline, the antistatic performance of PTFE can be effectively improved, the performance of the PTFE fiber is not influenced, and the prepared modified fiber has better antistatic performance than common PTFE fiber and better strength than the common PTFE fiber. The filter material is small in static electricity in the production process, has good acid and alkali resistance stability, and can be used under the working conditions that static electricity is easily generated and the acid and alkali concentration of smoke gas is high.

Description

technical field [0001] The invention relates to the field of materials, in particular to a method for manufacturing an antistatic filter material and the antistatic filter material. Background technique [0002] When the concentration of industrial dust reaches the explosion limit, if factors such as static sparks or external ignition are generated, it is easy to cause explosion and fire. In the dust removal system, the dust on the pipeline, the dust on the filter bag, and the friction, collision, peeling, and rupture between the dust will generate static electricity on the surface of the dust and the filter material. When a certain amount of charge on the surface of the filter material cannot be released in time, a high-voltage discharge will be formed, generating electric sparks, and it is very likely to cause a dust explosion. In the field of bag dust removal, if the dust removal bag is required to remove dust, the filter material made of the dust removal bag is required...

Claims

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Application Information

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IPC IPC(8): B01D39/14
CPCB01D39/14
Inventor 黄伟琪周冠辰杨东郑强杨有韬
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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