CN115193164A - Environment-friendly filter material and preparation method thereof - Google Patents
Environment-friendly filter material and preparation method thereof Download PDFInfo
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- CN115193164A CN115193164A CN202210848095.7A CN202210848095A CN115193164A CN 115193164 A CN115193164 A CN 115193164A CN 202210848095 A CN202210848095 A CN 202210848095A CN 115193164 A CN115193164 A CN 115193164A
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- 239000000463 material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims description 8
- 238000000576 coating method Methods 0.000 claims abstract description 78
- 239000011248 coating agent Substances 0.000 claims abstract description 75
- 239000010410 layer Substances 0.000 claims abstract description 56
- 239000002585 base Substances 0.000 claims abstract description 18
- 239000011247 coating layer Substances 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000003513 alkali Substances 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 claims abstract description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 16
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 16
- 229920002978 Vinylon Polymers 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 229920006231 aramid fiber Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 5
- 238000009941 weaving Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000004760 aramid Substances 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 238000012643 polycondensation polymerization Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000180 alkyd Polymers 0.000 claims description 3
- 210000003298 dental enamel Anatomy 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 3
- 238000009998 heat setting Methods 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 238000006068 polycondensation reaction Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 description 7
- 239000004744 fabric Substances 0.000 description 5
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Images
Classifications
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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
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
-
- 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
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0216—Bicomponent or multicomponent fibres
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
- B01D2239/0478—Surface coating material on a layer of the filter
-
- 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
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1275—Stiffness
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1291—Other parameters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/24—Polymers or copolymers of alkenylalcohols or esters thereof; Polymers or copolymers of alkenylethers, acetals or ketones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to an environment-friendly filter material, which comprises: the base filtering layer and the environment-friendly safety layers coated on the two surfaces of the base filtering layer; the environmental protection safety layer comprises: a plurality of first coating layers and second coating layers which are alternately superposed with each other; wherein, the first coating is a coating at least having wear resistance; the invention provides an environment-friendly filter material, which at least comprises a coating with saline-alkali resistance, wherein the second coating at least comprises a coating with saline-alkali resistance.
Description
Technical Field
The invention relates to the technical field of environment-friendly filter cloth, in particular to an environment-friendly filter material and a preparation method thereof.
Background
In the existing scheme, when the filter material is used, because the acid-base properties of water quality from different sources are different, different materials with different acid-base properties are reflected, the filter material has different tolerance to different acid-base properties, and can be damaged after being used for a long time, and the filter material has to be replaced when the damage occurs, so that the production efficiency is influenced, and the time cost is increased.
In addition, in the prior art, the strength of the prior filter cloth is reduced when the filter cloth is used, the filter cloth can be damaged if the filter cloth is used for a long time, the overall use effect can be influenced if the strength of the filter material cannot be increased, and the use cost is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an environment-friendly filter material and a preparation method thereof, aiming at solving the technical problem that the filter material cannot tolerate saline-alkali environment.
In order to achieve the purpose, the invention provides the following technical scheme: an environmentally friendly filter material comprising:
a base filtration layer;
the environment-friendly safety layer is coated on two surfaces of the basic filtering layer;
the environmental protection safety layer comprises: a plurality of first coating layers and second coating layers which are alternately superposed with each other; wherein, the first coating is a coating at least having wear resistance; the second coating layer has at least saline-alkali resistance.
Further preferably, the basic filter layer comprises the following components in percentage by mass: 85-90% of vinylon, 4-7% of terephthalic acid, 3-5% of polyester prepared by 1,4-butanediol polycondensation and 3-8% of aramid fiber.
Further preferably, the basis filter layer includes strengthening rib, horizontal roof beam and vertical roof beam, the strengthening rib is provided with a plurality ofly, and is a plurality of the strengthening rib is installed respectively on the basis filter layer, horizontal roof beam and vertical roof beam are provided with a plurality ofly respectively, and are a plurality of horizontal roof beam and vertical roof beam are installed respectively in the both sides of basis filter layer, every all be equipped with vertical strip on the vertical roof beam, every all be equipped with wear-resisting cover and horizontal strip on the horizontal roof beam, horizontal strip is installed in wear-resisting cover.
Further preferably, the environmental-friendly safety layer is sprayed on the base filtering layer, and then filtering holes are formed in an air flow impact mode; the total thickness between the first coating and the second coating is not less than 200um.
Further preferably, the number of the first coating layer and the second coating layer is at least three: the first coating is a wear-resistant coating formed by spraying any two or more of epoxy resin, phenolic resin and polyester resin; the second coating is a salt and alkali resistant coating formed by spraying any two or more of alkyd enamel, PU type paint and zinc-rich epoxy.
The invention provides a preparation method of an environment-friendly filter material, which comprises the following steps:
mixing polyester prepared by polycondensing vinylon filaments, terephthalic acid and 1,4-butanediol and aramid fibers according to a proportion and spinning the mixture into yarns serving as raw materials for manufacturing the basic filter layer;
soaking the blended yarns in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out, placing on a drying rack, and drying in the air to discharge water in the yarns;
the dried yarns are wound on a warp beam or a weaving beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved;
coating any one of the first coating and the second coating on the front surface and the back surface of the basic filter layer, and obtaining a preliminarily formed environment-friendly filter material after high-temperature shaping;
and after the first coating or the second coating which is coated on the front surface and the back surface of the basic filter layer is solidified, coating the other coating on the solidified first coating or the solidified second coating in an alternative mode, and then carrying out high-temperature shaping to obtain the corresponding environment-friendly filter material.
Further preferably, after the environment-friendly filter material is obtained through high-temperature setting, the method includes: and (3) carrying out high-temperature calendaring treatment on the filter material, so that the air permeability of the filter material is reduced to achieve the effect of smooth two sides.
More preferably, the vinylon filaments are woven according to the warp density of 358-480 threads/10 cm and the weft density of 145-213 threads/10 cm.
Further preferably, the warping processing speed is 200-220m/min, and the tension is 14.5-25.8 kg/ring.
Further preferably, the high-temperature setting is carried out by sequentially carrying out heat setting at the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃.
Compared with the prior art, the invention provides an environment-friendly filter material and a preparation method thereof, and the environment-friendly filter material has the following beneficial effects:
1. the invention provides an environment-friendly filter material which comprises reinforcing ribs, transverse beams and longitudinal beams, wherein the reinforcing ribs are arranged in a basic filter layer, and the transverse beams and the longitudinal beams are respectively arranged on the side surfaces of the basic filter layer.
2. The invention provides a production method of an environment-friendly filter material, which is characterized in that polyester prepared by condensation polymerization of vinylon filaments, terephthalic acid and 1,4-butanediol and aramid fiber are mixed and spun into yarns according to a proportion and used as raw materials for manufacturing a basic filter layer; soaking the blended yarns in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out, placing on a drying rack, and drying in the air to discharge water in the yarns; the dried yarns are wound on a warp beam or a weaving beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved; and coating any one of the first coating and the second coating on the front surface and the back surface of the basic filter layer, and performing high-temperature shaping to obtain the preliminarily-formed environment-friendly filter material.
Drawings
FIG. 1 is a schematic view of the overall structure of an environment-friendly filter material according to the present invention;
FIG. 2 is a schematic structural diagram of an environmentally friendly filter material without a first coating and a second coating according to the present invention;
FIG. 3 is a partial enlarged view of A in FIG. 2;
fig. 4 is a partially enlarged view of B in fig. 3.
In the figure: 1. a base filtration layer; 2. a first coating layer; 3. a second coating layer; 4. reinforcing ribs; 5. a transverse beam; 6. a longitudinal beam; 7. a longitudinal strip; 8. a wear-resistant sleeve; 9. a transverse strip; 10. and (4) filtering holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1-4, an environment-friendly filter material includes: a base filter layer 1; an environmental protection safety layer coated on both surfaces of the base filter layer 1; the environmental protection safety layer comprises: a plurality of first coatings 2 and second coatings 3 which are alternately superposed with each other; wherein, the first coating 2 is a coating at least having wear resistance; the second coating 3 at least has a coating with saline-alkali resistance, and the basic filter layer 1 comprises the following components in percentage by mass: 85-90% of vinylon filaments, 4-7% of terephthalic acid, 3-5% of polyester prepared by condensation polymerization of 1,4-butanediol and 3-8% of aramid fibers, wherein the base filter layer 1 comprises a plurality of reinforcing ribs 4, a plurality of transverse beams 5 and a plurality of longitudinal beams 6, the reinforcing ribs 4 are respectively arranged on the base filter layer 1, the plurality of transverse beams 5 and the plurality of longitudinal beams 6 are respectively arranged on two sides of the base filter layer 1, each longitudinal beam 6 is provided with a longitudinal strip 7, each transverse beam 5 is provided with a wear-resistant sleeve 8 and a transverse strip 9, the transverse strips 9 are arranged in the wear-resistant sleeves 8, and after the environment-friendly safety layer is sprayed on the base filter layer 1, a filter hole 10 is formed in an air flow impact mode; the total thickness between the first coating 2 and the second coating 3 is not less than 200um, and the number of the first coating 2 and the second coating 3 is at least three: the first coating 2 is a wear-resistant coating formed by spraying any two or more of epoxy resin, phenolic resin and polyester resin; the second coating 3 is a salt and alkali resistant coating formed by spraying any two or more of alkyd enamel, PU type coating and zinc-rich epoxy.
Example 2:
the invention provides a preparation method of an environment-friendly filter material, which comprises the following steps:
polyester prepared by condensation polymerization of vinylon filaments, terephthalic acid and 1,4-butanediol and aramid fibers are mixed and spun into yarns according to a proportion, and the yarns are used as raw materials for manufacturing the basic filter layer 1;
soaking the blended yarns in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out, placing on a drying rack, and drying in the air to discharge water in the yarns;
the dried yarns are wound on a warp beam or a weaving beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved;
coating any one of the first coating 2 and the second coating 3 on the front surface and the back surface of the basic filter layer 1, and obtaining a preliminarily formed environment-friendly filter material after high-temperature setting;
after the first coating 2 or the second coating 3 which is coated on the front surface and the back surface of the basic filter layer 1 is solidified, the other coating is coated on the solidified first coating 2 or the solidified second coating 3 in an alternative mode, and then the corresponding environment-friendly filter material is obtained by high-temperature shaping.
Further, after obtaining the environmental protection filter material after high temperature is stereotyped, include: the filter material is subjected to high-temperature calendaring treatment, so that the air permeability of the filter material is reduced, and the effect of double-sided smoothness is achieved.
Furthermore, the vinylon filaments are woven according to the warp density of 358-480 threads/10 cm and the weft density of 145-213 threads/10 cm.
Furthermore, the warping processing speed is 200-220m/min, and the tension is 14.5-25.8 kg/ring.
Further, the high-temperature setting is carried out by heat setting at the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃ in sequence.
Example 3:
referring to fig. 1-4, on the basis of embodiment 1, a plurality of reinforcing ribs 4 are installed in a base filter layer 1, filter holes 10 are blown out by air flow, then the strength of the base filter layer 1 is increased by a plurality of transverse beams 5 and longitudinal beams 6, transverse beams 9 are installed in wear-resistant sleeves 8, the wear-resistant sleeves 8 are installed in the transverse beams 5, the strength of the transverse beams 5 is increased by a plurality of transverse beams 9, and the strength of the longitudinal beams 6 is increased by a plurality of longitudinal beams 7, when the base filter layer 1 exerts force in the transverse direction, the strength is increased by the transverse beams 5 and the transverse beams 9, when the base filter layer exerts force in the longitudinal direction, the overall strength is increased by the longitudinal beams 7 and the longitudinal beams 6, and the reinforcing ribs 4 are added to increase the strength because the base filter layer 1 has more times of exerting force in the longitudinal direction, thereby improving the using effect.
Example 4:
referring to fig. 1-4, based on example 2, vinylon filament, terephthalic acid, 1,4-butanediol polycondensation polyester and aramid fiber are proportionally mixed and spun into yarn as raw materials for manufacturing the base filter layer 1; soaking the blended yarns in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out, placing on a drying rack for drying, and discharging water in the yarns; the dried yarns are wound on a warp beam or a weaving beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved; coating any one of the first coating 2 and the second coating 3 on the front surface and the back surface of the basic filter layer 1, and obtaining a preliminarily formed environment-friendly filter material after high-temperature setting; treat to scribble the first coating 2 or the second coating 3 solidification back on front and the reverse side on basic filter layer 1, with alternative mode with another kind of coating coat in solidification on first coating 2 or the second coating 3, then carry out high temperature design and obtain corresponding environmental protection filter material, after obtaining the environmental protection filter material after high temperature design, include: the filter material is subjected to high-temperature calendering treatment, so that the air permeability of the filter material is reduced to achieve the effect of double-sided smoothness, vinylon filaments are woven according to the warp density of 358-480 pieces/10 cm and the weft density of 145-213 pieces/10 cm, the warping treatment speed is 200-220m/min, the tension is 14.5-25.8 kg/ring, and the high-temperature shaping is carried out by sequentially carrying out heat shaping in the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃.
While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and variations may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An environment-friendly filter material, comprising:
a base filtration layer;
the environment-friendly safety layer is coated on two surfaces of the basic filtering layer (1);
the environmental protection safety layer comprises: a plurality of first coating layers (2) and second coating layers (3) which are alternately superposed with each other; wherein, the first coating (2) is a coating at least with wear-resisting property; the second coating (3) has at least a salt and alkali resistance.
2. The environment-friendly filter material of claim 1, wherein: the basic filter layer (1) comprises the following components in percentage by mass: 85-90% of vinylon, 4-7% of terephthalic acid, 3-5% of polyester prepared by 1,4-butanediol polycondensation and 3-8% of aramid fiber.
3. The environment-friendly filter material of claim 2, wherein: basis filter layer (1) includes strengthening rib (4), horizontal roof beam (5) and vertical roof beam (6), strengthening rib (4) are provided with a plurality ofly, and a plurality of install respectively on basis filter layer (1) strengthening rib (4), horizontal roof beam (5) and vertical roof beam (6) are provided with a plurality ofly respectively, and a plurality of the both sides at basis filter layer (1), every all be equipped with vertical strip (7), every on vertical roof beam (6) all be equipped with wear-resisting cover (8) and horizontal strip (9) on horizontal roof beam (5), install in wear-resisting cover (8) horizontal strip (9).
4. The environment-friendly filter material of claim 1, wherein: after the environment-friendly safety layer is sprayed on the basic filter layer (1), the filter holes (10) are formed in an air flow impacting mode; the total thickness between the first coating (2) and the second coating (3) is not less than 200um.
5. The environmentally friendly filter material of claim 4, wherein: the number of said first (2) and second (3) coatings is at least three: the first coating (2) is a wear-resistant coating formed by spraying any two or more of epoxy resin, phenolic resin and polyester resin; the second coating (3) is a salt and alkali resistant coating formed by spraying any two or more of alkyd enamel, PU type coating and zinc-rich epoxy.
6. The preparation method of the environment-friendly filter material is characterized by comprising the following steps:
polyester prepared by condensation polymerization of vinylon filaments, terephthalic acid and 1,4-butanediol and aramid fibers are mixed and spun into yarns according to a proportion, and the yarns are used as raw materials for manufacturing the basic filter layer (1);
soaking the blended yarns in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out, placing on a drying rack, and drying in the air to discharge water in the yarns;
the dried yarns are wound on a warp beam or a weaving beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved;
coating any one of the first coating (2) and the second coating (3) on the front surface and the back surface of the basic filter layer (1), and obtaining a preliminarily formed environment-friendly filter material after high-temperature setting;
and after the first coating (2) or the second coating (3) which is coated on the front surface and the back surface of the basic filter layer (1) is solidified, coating the other coating on the solidified first coating (2) or the solidified second coating (3) in an alternative mode, and then carrying out high-temperature shaping to obtain the corresponding environment-friendly filter material.
7. The method for preparing the environment-friendly filter material according to claim 6, characterized in that: after the environment-friendly filter material is obtained after high-temperature shaping, the method comprises the following steps: and carrying out high-temperature calendaring treatment on the filter material to reduce the air permeability of the filter material so as to achieve the effect of smooth double surfaces.
8. The method for preparing the environment-friendly filter material according to claim 6, wherein the method comprises the following steps: the vinylon filaments are woven according to the warp density of 358-480 pieces/10 cm and the weft density of 145-213 pieces/10 cm.
9. The method for preparing the environment-friendly filter material according to claim 6, wherein the method comprises the following steps: the warping processing speed is 200-220m/min, and the tension is 14.5-25.8 kg/ring.
10. The method for preparing the environment-friendly filter material according to claim 7, characterized in that: the high-temperature setting is carried out by sequentially carrying out heat setting at the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃.
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