A kind of preparation method of ptfe and pps composite high temperature resistant filter material

A high temperature resistant filter material, PTFE technology, used in textile, yarn, layered products, etc., can solve the problems of easy peeling and damage of PTFE membrane, and achieve the effect of light weight, high tensile breaking strength, and large dispersion of fineness

Active Publication Date: 2021-07-13
安徽中电环保材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the film-coated filter material, due to the bonding process of the film itself and the drag during transportation, the PTFE film is easy to peel off and break, so a method for preparing a PTFE-PPS composite high-temperature-resistant filter material is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of PTFE and PPS composite high-temperature-resistant filter material, step 1, raw material preparation, preparation selects PTFE fiber, PPS fiber, ceramic fiber, graphene fiber, basalt yarn and PPS yarn for use;

[0043] Raw material preparation in step 1, PTFE fiber adopts membrane splitting method spinning process, passes through after making PTFE fiber, selects the fiber of flat thickness uniform after carding machine carding;

[0044] Step 2, mixed yarn preparation, PTFE fiber, ceramic fiber and graphene fiber are prepared mixed yarn by compound twisting machine;

[0045]Mixed yarn preparation in step 2, spinning speed is 70m / min, twist is 90 twist / m, mixed yarn preparation in step 2, the mass ratio of PTFE fiber, ceramic fiber and graphene fiber is 86:12:2;

[0046] Step 3, base fabric preparation, warp basalt yarns and mixed yarns and weft PPS yarns and mixed yarns interweave vertically in the shape of a square to form a base fabric;

[0047]...

Embodiment 2

[0059] A preparation method of PTFE and PPS composite high-temperature-resistant filter material, step 1, raw material preparation, preparation selects PTFE fiber, PPS fiber, ceramic fiber, graphene fiber, basalt yarn and PPS yarn for use;

[0060] Raw material preparation in step 1, PTFE fiber adopts membrane splitting method spinning process, passes through after making PTFE fiber, selects the fiber of flat thickness uniform after carding machine carding;

[0061] Step 2, mixed yarn preparation, PTFE fiber, ceramic fiber and graphene fiber are prepared mixed yarn by compound twisting machine;

[0062] Mixed yarn preparation in step 2, spinning speed is 80m / min, twist is 120 twist / m, mixed yarn preparation in step 2, the mass ratio of PTFE fiber, ceramic fiber and graphene fiber is 86:12:2;

[0063] Step 3, base fabric preparation, warp basalt yarns and mixed yarns and weft PPS yarns and mixed yarns interweave vertically in the shape of a square to form a base fabric;

[006...

Embodiment 3

[0076] A preparation method of PTFE and PPS composite high-temperature-resistant filter material, step 1, raw material preparation, preparation selects PTFE fiber, PPS fiber, ceramic fiber, graphene fiber, basalt yarn and PPS yarn for use;

[0077] Raw material preparation in step 1, PTFE fiber adopts membrane splitting method spinning process, passes through after making PTFE fiber, selects the fiber of flat thickness uniform after carding machine carding;

[0078] Step 2, mixed yarn preparation, PTFE fiber, ceramic fiber and graphene fiber are prepared mixed yarn by compound twisting machine;

[0079] Mixed yarn preparation in step 2, spinning speed is 90m / min, twist is 140 twist / m, mixed yarn preparation in step 2, the mass ratio of PTFE fiber, ceramic fiber and graphene fiber is 86:12:2;

[0080] Step 3, base fabric preparation, warp basalt yarns and mixed yarns and weft PPS yarns and mixed yarns interweave vertically in the shape of a square to form a base fabric;

[008...

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PUM

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Abstract

The invention belongs to the technical field of high-temperature-resistant filter materials, in particular to a method for preparing a composite high-temperature-resistant filter material of PTFE and PPS, step 1, raw material preparation. The preparation method of the PTFE and PPS composite high-temperature-resistant filter material, by setting PTFE fibers, ceramic fibers, PPS fibers and graphene fibers, the PTFE fibers have large discrete fineness, good acid and alkali resistance, and the addition of graphene fibers makes the filter The material has the characteristics of high electron mobility, high thermal conductivity, good elasticity and stiffness. The ceramic fiber has the characteristics of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat and mechanical vibration resistance. , has the characteristics of opening the surface PTFE fiber, entanglement effect of PTFE fiber and PPS fiber is good, the thickness of the filter material is small, and the tensile breaking strength of the filter material is high, thus solving the problem of the existing film-coated filter material The bonding process itself and the dragging during transportation make the PTFE membrane easy to peel off and break.

Description

technical field [0001] The invention relates to the technical field of high-temperature-resistant filter materials, in particular to a method for preparing a composite high-temperature-resistant filter material of PTFE and PPS. Background technique [0002] The filter felt is the core component of the bag filter, which plays the role of filtering air dust, and is called the heart of the bag filter. The filter felt is usually prepared by entanglement of chopped fibers on both sides of the base cloth with the base cloth as the middle skeleton. [0003] The rapid development of "high consumption, high emission, and high pollution" industries such as electric power, steel, chemistry, cement, and waste incineration has not only created a richer, more convenient, and faster life for people, but also affected natural resources, energy, Environmental sustainability poses serious threats. The air pollutants emitted by these social industries mainly include high-temperature flue gas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H13/00D04H1/4318D04H1/4326D04H1/4382D04H1/732D04H3/005D04H3/007D04H3/009D04H3/02D03D15/242D03D15/283D03D1/00D02G3/16D02G3/04B32B7/09B32B5/26
CPCB32B5/26B32B7/09D02G3/04D02G3/16D03D1/00D04H1/4318D04H1/4326D04H1/4382D04H1/732D04H3/005D04H3/007D04H3/009D04H3/02D04H13/00D10B2101/02D10B2101/08D10B2101/12D10B2321/042D10B2331/301D10B2401/061D10B2505/04
Inventor 李绍林孙淑娟李承润胡深黄燎辉
Owner 安徽中电环保材料股份有限公司
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