CN107297102B - A kind of preparation method of high-strength corrosion-resisting industrial filter cloth - Google Patents
A kind of preparation method of high-strength corrosion-resisting industrial filter cloth Download PDFInfo
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- CN107297102B CN107297102B CN201710515582.0A CN201710515582A CN107297102B CN 107297102 B CN107297102 B CN 107297102B CN 201710515582 A CN201710515582 A CN 201710515582A CN 107297102 B CN107297102 B CN 107297102B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0613—Woven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Manufacturing & Machinery (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of preparation methods of high-strength corrosion-resisting industrial filter cloth, first polyethylene powders and polypropylene are carried out mixed and modified, it is carried out under vacuum with heating with PET, ptfe emulsion, liquid nitrile rubber, diphenyl silanediol and modified graphene again twice-modified, then by double screw extruder melting extrusion and pass through manifold spinneret spinneret, it is cooling, sizing, obtains twine；Finally by twine knitmesh, industrial filter cloth is obtained.The industrial filter cloth isomorphism that method provided by the invention the obtains each component high Collaboration for prepare filter cloth materials modified twice, enhances water penetration, mechanical performance, corrosion resistance and the stability in use of filter cloth jointly.
Description
Technical field
The invention belongs to industrial filter cloth preparing technical fields, and in particular to a kind of preparation of high-strength corrosion-resisting industrial filter cloth
Method.
Background technology
The main component that industrial filter cloth uses at present has polypropylene fibre, terylene, polyamide fibre etc., wherein the most normal with polypropylene fibre and terylene
Using plain weave and twill the means such as it is with, weaving method, has precision high and there are the property such as certain acid and alkali-resistance is wear-resisting
Energy.But currently used industrial filter cloth mechanical strength is not high, service life is limited, and under extreme conditions using limited, often
Method be the resin of high intensity is introduced to increase its mechanical strength, but the problem of these resins are brought on the one hand be with often
Compound Degree with industrial fiber cloth is inadequate, influences the performance to greatest extent of performance, on the other hand since the above component is being knitted
Net forms after filter cloth and produces larger resistance for liquid filtering, and liquid permeability is remarkably decreased, meanwhile, by improving above
The stability in use of the industrial filter cloth obtained afterwards is not high, i.e., in specified conditions, such as the strong ring of high intensity, high temperature, high humidity, corrosivity
Being used for a long time under border can make filter cloth twine performance decline, and to accelerate filter cloth to scrap speed, finally improve use cost, drop
Low using effect.
Invention content
The present invention provides a kind of preparation method of high-strength corrosion-resisting industrial filter cloth, passes through specific component and preparation method
Control, whole mechanical performance, resistance to acid and alkali, stability in use and the water permeability etc. for promoting industrial filter cloth.
Technical scheme is as follows：
A kind of preparation method of high-strength corrosion-resisting industrial filter cloth, includes the following steps：
Step 1,10-15 parts of polyethylene powders in parts by weight are added to 150-200 with 8-10 parts of polypropylene powder
In part hot water, stirs 10-20 minutes, 80-100 parts of absolute ethyl alcohol is then added, is heated to boiling, kept for 5-10 minutes, filtering,
Drying, obtains mixture；
Step 2, it adds mixture in 130-150 parts of dichloroethanes, 70-80 is warming up under the conditions of nitrogen protection
DEG C, it reacts 45-55 minutes, cooled and filtered is washed using solvent, dry, obtains solids；
Step 3, by PET10-15 parts, 6-8 parts of ptfe emulsion, 5-8 parts of liquid nitrile rubber, diphenyl silanediol
5-7 parts and 3-5 parts of modified graphene are mixed with solids, are heated under vacuum with 2-3 DEG C/min of heating rate
It 105-110 DEG C, is kept for 30-40 minutes, is then cooled to 60-70 DEG C, continued to be kept for 80-100 minutes, be down to room temperature, obtained anti-
Answer object；
Step 4,0.5-1 parts of lubricant is added in reactant, by double screw extruder melting extrusion and passes through spinning
Case spinneret spinneret, cooling, sizing obtains twine；
Step 5, by twine knitmesh, filter cloth is obtained.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, hot water temperature is 70 DEG C or more in step 1.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, polyethylene powders and polypropylene powder in step 1
Grain size is 1mm or less.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, the temperature dried in step 1 are 100-120 DEG C.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, solvent is acetone in step 2.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, in step 3 preparation method of modified graphene be will
1-2 parts of 5-8 parts of graphene, lecithin and 0.2-0.4 parts of dibutyl tin laurate in parts by weight is ground to stone after mixing
Black alkene grain size 200nm hereinafter, then be added 0.5-0.8 parts of glass fibre, be stirred 15-20 minutes；Wherein glass fibre is long
20 microns of degree is hereinafter, 5 microns of glass fiber diameter or less.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, the vacuum degree of vacuum condition is 0.01- in step 3
0.05MPa。
The preparation method of the high-strength corrosion-resisting industrial filter cloth, lubricant is talcum powder, grain size 1000 in step 4
Mesh.
The preparation method of the high-strength corrosion-resisting industrial filter cloth, the warp line footpath of twine knitmesh is 0.18- in step 5
0.21mm, weft line footpath are 0.20-0.25mm；Knitmesh through it is close be 23-28 roots/cm, filling density be 14-16 roots/cm.
The preparation method of high-strength corrosion-resisting industrial filter cloth provided by the invention, first by polyethylene, polyacrylic multiple
Close Modified lift filter cloth immersion property so that filter cloth is easier immersion liquid, while passing through diphenyl silanediol, PET, liquid fourth
Nitrile rubber, modified graphene and ptfe emulsion mix it is twice-modified, it is modified poly- under elevated temperature in vacuo
Irreversible reaction occurs for ethylene, polypropylene and diphenyl silanediol and ptfe emulsion, interpolymerized between generation component, changes
It has been apt to the plasticity of material, the machine that filter cloth is prepared is further improved in combination with modified graphene and liquid nitrile rubber
Tool performance and antiseptic property improve the intensity of filter cloth.
Pass through polyethylene, polyacrylic composite modified, 70-80 DEG C of controlling reaction temperature, reaction in preparation method of the present invention
Time 45-55 minute, obtained mixture have certain hydrophily so that the industrial filter cloth being finally prepared has preferable
Inundation, enable to the liquid of filtering to infiltrate and permeate rapidly, but modification degree is not high simultaneously, is easy to later stage mixing in this way
Object and other components it is secondary mixed and modified.
It carries out while being modified using two kinds of polyethylene, polypropylene components in the present invention, pass through special parameter and control modified effect
Rate, then carries out blending ingredients twice-modified, and diphenyl silanediol penetrates into polyethylene, polypropylene under elevated temperature in vacuo
With the amorphous area of PET, collaboration ptfe emulsion is under liquid environment by forming macromolecular chain during high-temperature phase-transitional
Free radical, realizes interpolymerized between each component, and modified synergic graphene and liquid nitrile rubber ultimately form during interpolymerized
The compound entirety of " interpolymerized to dissolve each other ", improves the liquid wellability and liquid permeability of filter cloth, while improving filter cloth machine
Tool performance and corrosion resistance.The modifying process and state modulator of the present invention realize it is modified with component is interpolymerized takes into account, temperature
Too high or overlong time influences whether the mixed and modified effect of later-stage secondary, and then influences the spy for the filter cloth being finally prepared
Property.
Modified graphene is used in preparation method of the present invention, makes graphene be easier to disperse by the modification of graphene
Into in the mixture after twice-modified, by the addition reaction of liquid nitrile rubber can it is just twice-modified during to modification
Graphene plays the role of " softening ", produces " removing rigidization ", is conducive to the later stage and prepares twine；And in modified graphene
Glass fibre to play the role of structure crosslinked so that the twine that the later stage is formed have good plasticity with further in shape
At " rigidity " that enhancing graphene is discharged and cooperateed with after twine.
Modified graphene is used in preparation method of the present invention to carry out mixing secondary cross-linking with liquid nitrile rubber, is enhanced
The mechanical performance and corrosion resistance of strainer.
Specific implementation mode：
Following embodiment is the specific implementation process of technical solution of the present invention, wherein the polyethylene powders and polypropylene that use
The grain size of powder is good for final experiment effect, and powder diameter is small as possible, and 1mm poly- second below is all made of in following embodiment
Alkene is tested with polypropylene powder, but is not limited to the range in actual use.
The preparation method of modified graphene used in following embodiment be by parts by weight 5-8 parts of graphene,
Graphene grain size 200nm is ground to hereinafter, then adding after the 0.2-0.4 parts of mixing of 1-2 parts of lecithin and dibutyl tin laurate
Enter 0.5-0.8 parts of glass fibre, is stirred 15-20 minutes；Wherein 20 microns of glass fibre length is hereinafter, glass fiber diameter
5 microns or less.
Embodiment 1
A kind of preparation method of high-strength corrosion-resisting industrial filter cloth, includes the following steps：
Step 1, it is 70 10 parts of polyethylene powders in parts by weight to be added to 150 parts of temperature with 8 parts of polypropylene powder
DEG C or more hot water in, stir 10 minutes, then be added 80 parts of absolute ethyl alcohol, be heated to boiling, keep 5 minutes, filtering, 100
It is dried under the conditions of DEG C, obtains mixture；
Step 2, it adds mixture in 130 parts of dichloroethanes, 70 DEG C is warming up under the conditions of nitrogen protection, reaction 45
Minute, cooled and filtered is washed using acetone, dry, obtains solids；
Step 3, by PET10 parts, 6 parts of ptfe emulsion, 5 parts of liquid nitrile rubber, 5 parts of diphenyl silanediol and change
Property 3 parts of graphene mixed with solids, heated with 2 DEG C/min of heating rate in the case where vacuum degree is the vacuum condition of 0.01MPa
It to 105 DEG C, is kept for 30 minutes, is then cooled to 60 DEG C, continued to be kept for 80 minutes, be down to room temperature, obtain reactant；
Step 4,0.5 part of lubricant is added in reactant, by double screw extruder melting extrusion and passes through manifold
Spinneret spinneret, cooling, sizing obtain twine, and wherein lubricant is talcum powder, and grain size is 1000 mesh；
Step 5, by twine knitmesh, warp line footpath is 0.18-0.21mm, and weft line footpath is 0.20-0.25mm；Knitmesh is through close
For 23-28 roots/cm, filling density is 14-16 roots/cm, obtains filter cloth.
Embodiment 2
A kind of preparation method of high-strength corrosion-resisting industrial filter cloth, includes the following steps：
Step 1, it is 70 12 parts of polyethylene powders in parts by weight to be added to 160 parts of temperature with 9 parts of polypropylene powder
DEG C or more hot water in, stir 13 minutes, then be added 85 parts of absolute ethyl alcohol, be heated to boiling, keep 7 minutes, filtering, 105
It is dried under the conditions of DEG C, obtains mixture；
Step 2, it adds mixture in 136 parts of dichloroethanes, 74 DEG C is warming up under the conditions of nitrogen protection, reaction 48
Minute, cooled and filtered is washed using acetone, dry, obtains solids；
Step 3, by PET12 parts, 7 parts of ptfe emulsion, 6 parts of liquid nitrile rubber, 6 parts of diphenyl silanediol and change
Property 4 parts of graphene mixed with solids, heated with 3 DEG C/min of heating rate in the case where vacuum degree is the vacuum condition of 0.02MPa
It to 106 DEG C, is kept for 35 minutes, is then cooled to 64 DEG C, continued to be kept for 87 minutes, be down to room temperature, obtain reactant；Step 4, exist
0.7 part of lubricant is added in reactant, by double screw extruder melting extrusion and by manifold spinneret spinneret, cools down,
Sizing obtains twine, and wherein lubricant is talcum powder, and grain size is 1000 mesh；
Step 5, by twine knitmesh, warp line footpath is 0.18-0.21mm, and weft line footpath is 0.20-0.25mm；Knitmesh is through close
For 23-28 roots/cm, filling density is 14-16 roots/cm, obtains filter cloth.
Embodiment 3
A kind of preparation method of high-strength corrosion-resisting industrial filter cloth, includes the following steps：
Step 1, it is 70 13 parts of polyethylene powders in parts by weight to be added to 190 parts of temperature with 9 parts of polypropylene powder
DEG C or more hot water in, stir 17 minutes, then be added 90 parts of absolute ethyl alcohol, be heated to boiling, keep 8 minutes, filtering, 110
It is dried under the conditions of DEG C, obtains mixture；
Step 2, it adds mixture in 146 parts of dichloroethanes, 77 DEG C is warming up under the conditions of nitrogen protection, reaction 50
Minute, cooled and filtered is washed using acetone, dry, obtains solids；
Step 3, by PET14 parts, 7 parts of ptfe emulsion, 6 parts of liquid nitrile rubber, 6 parts of diphenyl silanediol and change
Property 4 parts of graphene mixed with solids, heated with 2 DEG C/min of heating rate in the case where vacuum degree is the vacuum condition of 0.03MPa
It to 108 DEG C, is kept for 38 minutes, is then cooled to 66 DEG C, continued to be kept for 95 minutes, be down to room temperature, obtain reactant；
Step 4,0.8 part of lubricant is added in reactant, by double screw extruder melting extrusion and passes through manifold
Spinneret spinneret, cooling, sizing obtain twine, and wherein lubricant is talcum powder, and grain size is 1000 mesh；
Step 5, by twine knitmesh, warp line footpath is 0.18-0.21mm, and weft line footpath is 0.20-0.25mm；Knitmesh is through close
For 23-28 roots/cm, filling density is 14-16 roots/cm, obtains filter cloth.
Embodiment 4
A kind of preparation method of high-strength corrosion-resisting industrial filter cloth, includes the following steps：
Step 1, it is 70 15 parts of polyethylene powders in parts by weight to be added to 200 parts of temperature with 10 parts of polypropylene powder
DEG C or more hot water in, stir 20 minutes, then be added 100 parts of absolute ethyl alcohol, be heated to boiling, keep 10 minutes, filtering,
It is dried under the conditions of 120 DEG C, obtains mixture；
Step 2, it adds mixture in 150 parts of dichloroethanes, 80 DEG C is warming up under the conditions of nitrogen protection, reaction 55
Minute, cooled and filtered is washed using acetone, dry, obtains solids；
Step 3, by PET15 parts, 8 parts of ptfe emulsion, 8 parts of liquid nitrile rubber, 7 parts of diphenyl silanediol and change
Property 5 parts of graphene mixed with solids, heated with 3 DEG C/min of heating rate in the case where vacuum degree is the vacuum condition of 0.05MPa
It to 110 DEG C, is kept for 40 minutes, is then cooled to 70 DEG C, continued to be kept for 100 minutes, be down to room temperature, obtain reactant；
Step 4,1 part of lubricant is added in reactant, is sprayed by double screw extruder melting extrusion and by manifold
Filament plate spinneret, cooling, sizing obtain twine, and wherein lubricant is talcum powder, and grain size is 1000 mesh；
Step 5, by twine knitmesh, warp line footpath is 0.18-0.21mm, and weft line footpath is 0.20-0.25mm；Knitmesh is through close
For 23-28 roots/cm, filling density is 14-16 roots/cm, obtains filter cloth.
The industrial filter cloth provided above example is tested for the property, wherein：
(1) dry-hot shrinkage：Sample to be tested is placed 50 minutes under the conditions of 100 DEG C, measures its tensile strain rate.
(2) damp and hot shrinking percentage：Sample to be tested is placed 50 minutes in 100 DEG C of water, measures its tensile strain rate.
(3) Air permenbility：At room temperature by sample to be tested ventilation per second on measuring unit area under conditions of air pressure 125Pa
Amount, takes the test point of different warps, latitude in same sample test process, and test 3 times or more is averaged, unit cm3/
(cm2·s)。
(4) permeable amount：Under room temperature so that filter cloth both sides form certain pressure difference (125Pa), by measuring in certain time
Through the quality of the water of unit area filter cloth, corresponding permeability rate can be obtained, by it is different warp, latitude measurement point measure 3 times with
On be averaged, unit cm3/(cm2·s)。
(5) corrosion resistance：Sample to be tested is impregnated into 500h in the HCl of mass concentration 5% and NaOH solution respectively, is observed
Surface state tests tensile break strength.
As a result as follows：
As can be seen from the above results, high-strength corrosion-resisting industrial filter cloth provided by the invention has excellent comprehensive
Can, wherein being measured with the filter cloth woven through close and filling density that above example provides, prewet by dry heat treatment
Air permenbility and permeable amount variation after heat treatment is very small, while dry-hot shrinkage changes with damp and hot shrinking percentage 0.6%
In range, this be have benefited from present invention introduces modified graphene, largely improve the mechanical performance of filter cloth materials,
Stability is enhanced, and its tensile break strength has also reached very high index.For in terms of resistance to acid and alkali, carrying out acid and alkali-resistance
Experiment post-tensioning fracture strength can be kept well, only small decline, therefore can be used for a long time under extreme conditions,
And good stability in use is kept, prolong the service life.
The present invention by the study found that introduce modified graphene and liquid nitrile rubber during preparing industrial filter cloth,
So that the tensile break strength of final filter cloth less introduces the above group timesharing and improves 20% or more；In resistance to acid and alkali experiment,
It introduces modified graphene and liquid nitrile rubber compares and do not introduce above group of timesharing, the stretching tested after acid and alkali-resistance experiment is disconnected
Resistance to spalling improves 25% or more.In preparation process, by the twice-modified permeability rate for clearly enhancing filter cloth and resistance to dry
Heat and Hygrothermal Properties.
Claims (7)
1. a kind of preparation method of high-strength corrosion-resisting industrial filter cloth, which is characterized in that include the following steps：
Step 1,10-15 parts of polyethylene powders in parts by weight are added to 150-200 parts of heat with 8-10 parts of polypropylene powder
It in water, stirs 10-20 minutes, 80-100 parts of absolute ethyl alcohol is then added, is heated to boiling, kept for 5-10 minutes, filtering is dried
It is dry, obtain mixture；
Step 2, it adds mixture in 130-150 parts of dichloroethanes, 70-80 DEG C is warming up under the conditions of nitrogen protection, instead
It answers 45-55 minutes, cooled and filtered is washed using solvent, dry, obtains solids；
Step 3, by PET10-15 parts, 6-8 parts of ptfe emulsion, 5-8 parts of liquid nitrile rubber, diphenyl silanediol 5-7
3-5 parts of part and modified graphene are mixed with solids, are heated to 105- under vacuum with 2-3 DEG C/min of heating rate
It 110 DEG C, is kept for 30-40 minutes, is then cooled to 60-70 DEG C, continued to be kept for 80-100 minutes, be down to room temperature, obtain reactant；
Step 4,0.5-1 parts of lubricant is added in reactant, is sprayed by double screw extruder melting extrusion and by manifold
Filament plate spinneret, cooling, sizing obtains twine；
Step 5, by twine knitmesh, filter cloth is obtained；
In step 3 preparation method of modified graphene be by parts by weight 1-2 parts of 5-8 parts of graphene, lecithin and February
Graphene grain size 200nm is ground to hereinafter, glass fibre 0.5-0.8 is then added after 0.2-0.4 parts of mixing of dilaurylate
Part, it is stirred 15-20 minutes；Wherein 20 microns of glass fibre length is hereinafter, 5 microns of glass fiber diameter or less；In step 4
Lubricant is talcum powder, and grain size is 1000 mesh.
2. the preparation method of high-strength corrosion-resisting industrial filter cloth according to claim 1, which is characterized in that hot in step 1
Coolant-temperature gage is 70 DEG C or more.
3. the preparation method of high-strength corrosion-resisting industrial filter cloth according to claim 1, which is characterized in that gather in step 1
The grain size of ethylene powder and polypropylene powder is 1mm or less.
4. the preparation method of high-strength corrosion-resisting industrial filter cloth according to claim 1, which is characterized in that dried in step 1
Dry temperature is 100-120 DEG C.
5. the preparation method of high-strength corrosion-resisting industrial filter cloth according to claim 1, which is characterized in that molten in step 2
Agent is acetone.
6. the preparation method of high-strength corrosion-resisting industrial filter cloth according to claim 1, which is characterized in that true in step 3
The vacuum degree of empty condition is 0.01-0.05MPa.
7. the preparation method of high-strength corrosion-resisting industrial filter cloth according to claim 1, which is characterized in that net in step 5
The warp line footpath of silk net is 0.18-0.21mm, and weft line footpath is 0.20-0.25mm；Knitmesh is through close for 23-28 roots/cm, filling density
For 14-16 roots/cm.
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| JPS6480402A (en) * | 1987-09-22 | 1989-03-27 | Mitsubishi Rayon Co | Heat resistant, ion-exchange porous membrane and its production |
| CN103432822A (en) * | 2013-09-09 | 2013-12-11 | 鸡西市恒润滤布有限公司 | Monofilament filter fabric for coal washing and preparation method thereof |
| CN105544020A (en) * | 2016-01-28 | 2016-05-04 | 东华大学 | Graphene-doped polyacrylonitrile mesopore activated carbon fiber and preparation method thereof |
| CN105603718A (en) * | 2016-02-05 | 2016-05-25 | 济南圣泉集团股份有限公司 | Composite fiber as well as preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060231487A1 (en) * | 2005-04-13 | 2006-10-19 | Bartley Stuart L | Coated filter media |
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| JPS6480402A (en) * | 1987-09-22 | 1989-03-27 | Mitsubishi Rayon Co | Heat resistant, ion-exchange porous membrane and its production |
| CN103432822A (en) * | 2013-09-09 | 2013-12-11 | 鸡西市恒润滤布有限公司 | Monofilament filter fabric for coal washing and preparation method thereof |
| CN105544020A (en) * | 2016-01-28 | 2016-05-04 | 东华大学 | Graphene-doped polyacrylonitrile mesopore activated carbon fiber and preparation method thereof |
| CN105603718A (en) * | 2016-02-05 | 2016-05-25 | 济南圣泉集团股份有限公司 | Composite fiber as well as preparation method and application thereof |
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