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Compound filter material, method and application thereof

A technology of composite filter material and mixed fiber, which is applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of folding resistance, poor wear resistance, short service life, poor corrosion resistance, etc., and achieve acid resistance and corrosion resistance. The effect of stable steam, improved service life and high density

Inactive Publication Date: 2012-01-25
厦门美达斯环保工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because basalt fiber is brittle and easy to break, its folding resistance and wear resistance are poor, and its corrosion resistance to some chemical substances is also poor. Therefore, the filter material made of pure basalt fiber has the above defects, especially When used in a high temperature environment, its service life is short, resulting in great limitations in application

Method used

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  • Compound filter material, method and application thereof
  • Compound filter material, method and application thereof
  • Compound filter material, method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The basalt fiber is mixed with the polytetrafluoroethylene fiber to obtain the mixed fiber, and the basalt fiber is 50% and the polytetrafluoroethylene fiber is 50% by mass percentage. Adding an antistatic agent to the mixed fibers is combined to obtain a composite filter material. According to mass percentage, the addition amount of antistatic agent is 10% of the mixed fiber. The antistatic agent is oxyethylene ether. Said adding the antistatic agent to blending is to add the antistatic agent to the mixed fiber before blending, and then blend, and the blending is carried out in a blending machine.

[0022] Such as figure 1 As shown, the single-layer composite filter cloth 1 is a needle-punched felt cloth. Composite filter cloth 1 is obtained by molding the composite filter material obtained in this example through a conventional acupuncture process. In application, the single-layer composite filter cloth 1 can be directly used to prepare a filter device.

[0023] ...

Embodiment 2

[0033] Similar to Example 1, the difference is that, in terms of mass percentage, in the obtained mixed fibers, basalt fibers account for 99%, and polytetrafluoroethylene fibers account for 1%. The amount of antistatic agent added is 10% of the mixed fiber. The antistatic agent is a mixture of alkyl phenol and oleic acid polymer, and the alkyl phenol and oleic acid polymer are each 50% by mass percentage. While blending, antistatic agent is added, and blending is carried out in the opener.

Embodiment 3

[0035] Similar to Example 1, the difference is that, in terms of mass percentage, in the resulting mixed fibers, basalt fibers account for 35%, and polytetrafluoroethylene fibers account for 65%. The amount of antistatic agent added is 20% of the mixed fiber. The antistatic agent is a mixture of polyoxyethylene ether, fatty acid ester mixture and fatty acid polyoxyethylene ether, each accounting for 1 / 3 by mass ratio.

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Abstract

The invention discloses a compound filter material, a method and application thereof, and relates to a filter material. The invention provides a compound filter material which has good folding endurance, corrosion resistance and wear resistance and can be used as a high-temperature environment filter material, a method and application thereof. The compound filter material comprises the following components in percentage by mass: 1 to 99 percent of basalt fiber and 1 to 99 percent of polytetrafluoroethylene fiber. The preparation method comprises the following steps of: mixing the basalt fiberand the polytetrafluoroethylene fiber to obtain a mixed fiber; and adding an antistatic agent to the mixed fiber for mixing to obtain the compound filter material. According to the mass percentage, the adding amount of the antistatic agent is 0.1 to 20 percent of the mixed fiber. The compound filter material can be used for directly preparing composite filter cloth with single-layer structure or multi-layer structure, and the prepared composite filter cloth with single-layer structure or multi-layer structure can be used for producing a filter device.

Description

technical field [0001] The invention relates to a filter material, in particular to a composite filter material and its preparation method and application. Background technique [0002] At present, among the filter materials used in high-temperature environments such as industrial flue gas purification, some are made of pure basalt fibers. Basalt is an inorganic fiber, which has the advantages of non-combustibility, good temperature resistance (-269~700°C), no toxic gas emission, good heat insulation, no melting or dripping, high strength, and no heat shrinkage. However, due to the brittleness of basalt fiber, it is easy to break, the folding resistance and wear resistance are poor, and the corrosion resistance to some chemical substances is also poor. Therefore, the filter material made of pure basalt fiber has the above defects, especially When used in a high temperature environment, its service life is short, resulting in great limitations in application. [0003] The u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/16B01D39/14B01D39/08
Inventor 邱新标
Owner 厦门美达斯环保工业有限公司
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