CN113445364A - Flame-retardant air filter paper and preparation method thereof - Google Patents
Flame-retardant air filter paper and preparation method thereof Download PDFInfo
- Publication number
- CN113445364A CN113445364A CN202010222548.6A CN202010222548A CN113445364A CN 113445364 A CN113445364 A CN 113445364A CN 202010222548 A CN202010222548 A CN 202010222548A CN 113445364 A CN113445364 A CN 113445364A
- Authority
- CN
- China
- Prior art keywords
- parts
- fiber
- pulp
- paper
- air filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 67
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 54
- 239000003365 glass fiber Substances 0.000 claims abstract description 22
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 14
- 229920006282 Phenolic fiber Polymers 0.000 claims abstract description 14
- 239000004642 Polyimide Substances 0.000 claims abstract description 14
- 229920001721 polyimide Polymers 0.000 claims abstract description 14
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims abstract description 13
- -1 polyisophthaloyl Polymers 0.000 claims abstract description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 18
- 229920001131 Pulp (paper) Polymers 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 229920000297 Rayon Polymers 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007650 screen-printing Methods 0.000 claims description 6
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229940083037 simethicone Drugs 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 7
- 229920002545 silicone oil Polymers 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 6
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000007865 diluting Methods 0.000 description 4
- 230000009172 bursting Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000889 poly(m-phenylene isophthalamide) Polymers 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
-
- 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
-
- 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
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
- D21H13/08—Synthetic cellulose fibres from regenerated cellulose
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/22—Condensation polymers of aldehydes or ketones
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/26—Polyamides; Polyimides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/13—Silicon-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
- Paper (AREA)
Abstract
The invention relates to the technical field of filter materials, and discloses flame-retardant air filter paper and a preparation method thereof, wherein the flame-retardant air filter paper comprises the following components in parts by weight: 30-60 parts of alkaline-treated cotton linter pulp, 30-50 parts of glass fiber, 10-15 parts of melamine formaldehyde resin fiber, 10-15 parts of polyisophthaloyl metaphenylene diamine fiber, 5-15 parts of phenolic fiber and 5-15 parts of polyimide fiber.
Description
Technical Field
The invention relates to the technical field of filter materials, in particular to flame-retardant air filter paper and a preparation method thereof.
Background
The flame-retardant air filter paper is special paper for manufacturing a paper filter element in an automobile air filter, and is used for filtering air entering an internal combustion engine, providing clean combustion air of the internal combustion engine, the temperature of the air filter paper rises and the air filter paper burns due to high temperature of a cylinder, hot air backflow and other reasons, so the air filter paper is required to maintain high-filtering-efficiency and high-precision filtering performance and simultaneously have high-level flame retardance, the currently used flame-retardant air filter paper cannot reach the high-filtering-performance and high-flame-retardance dual standards simultaneously, the service life of the flame-retardant air filter paper is short, and the replacement is more frequent, for example, the Chinese patent application publication number: CN105672045A, application laid-open No. 2016, 06, 15, the invention provides a flame-retardant air filter paper and a preparation method thereof, wherein the preparation method comprises the following steps: (1) diluting the water-based impregnated flame retardant with water to obtain a flame retardant solution; (2) diluting the water-based styrene-acrylic emulsion with water to obtain styrene-acrylic emulsion for impregnation; (3) mixing mercerized pulp, polyester fiber and softwood pulp, defibering and manufacturing raw paper of air filter paper; (4) immersing air filter paper base paper into the flame retardant solution, taking out, removing the redundant flame retardant solution on the surface, and curing to obtain flame retardant base paper; (5) the flame-retardant air filter paper has the advantages that although the filtering performance of the filter paper can reach a higher standard, the strength, toughness and burst strength are insufficient, the filter paper is easy to break during use to reduce the filtering effect, the impregnation mechanism is adopted to endow the air filter paper with the flame-retardant performance, the flame-retardant performance of the filter paper is obviously reduced after long-term use, and the service life is shorter.
Disclosure of Invention
The invention provides the flame-retardant air filter paper with high filtering performance, high flame retardance, high strength, good toughness and long service life and the preparation method thereof, aiming at solving the defects that the flame-retardant air filter paper in the prior art cannot simultaneously reach the dual standards of high filtering performance and high flame retardance, and the flame-retardant air filter paper has the advantages of quick failure of the flame-retardant performance, low strength, poor toughness and short service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
the flame-retardant air filter paper comprises the following components in parts by weight: 30-60 parts of alkali-treated cotton linter pulp, 10-30 parts of glass fiber, 10-15 parts of melamine formaldehyde resin fiber, 10-15 parts of polyisophthaloyl metaphenylene diamine fiber, 5-15 parts of phenolic fiber and 5-15 parts of polyimide fiber.
The flame-retardant air filter paper prepared by the following preparation method by taking the raw materials in the component ratio has the main performance indexes of 42 mu m average pore diameter, 55 mu m maximum pore diameter, 380 +/-10 kPa dry burst strength and 98 +/-5L/square meter of air permeability. In the component proportion, the cotton linter pulp subjected to alkali treatment and the glass fiber form the main components of the flame-retardant air filter paper, wherein the cotton linter pulp is used as basic pulp to play a supporting role, the glass fiber has higher heat resistance and mechanical strength, the strength and toughness of the filter paper are improved, and the flame-retardant performance of the filter paper is basic, the melamine formaldehyde resin fiber, the poly (m-phenyleneisophthalamide) fiber, the phenolic fiber and the polyimide fiber are used as functional parts to improve the flame-retardant performance of the filter paper, the air filter paper made of the fibers does not have good filtering performance, and the flexibility, the bursting strength and the flame-retardant performance of the air filter paper are all higher than those of common flame-retardant air filter paper.
Preferably, the glass fibers have a particle size of not greater than 100 nm. The glass fiber with small particle size is beneficial to the interweaving and forming of the fiber, so that the filter paper with good strength is obtained.
Preferably, the quantitative ratio of the flame-retardant air filter paper is 180 + -5 g/m 2. And determining a proper quantitative amount to balance the balance relationship among the strength, the filtering effect and the speed, wherein the excessive quantitative amount can cause the filter paper to be too thick and the filtering speed to be reduced, and the excessive quantitative amount can cause the strength and the filtering effect to be not required.
Preferably, the flame-retardant air filter paper further comprises 10-20 parts by weight of viscose fibers. The viscose fiber improves the binding force among fibers and enhances the strength and toughness of the filter paper.
The preparation method of the flame-retardant air filter paper is characterized by comprising the following steps of:
a) taking 30-60 parts of alkali-treated linter pulp, defibering the linter pulp by using a defibering machine, and grinding the linter pulp on line by using a double-disc refiner to obtain pulp with the pulp degree of 15-17 DEG SR;
b) taking 10-30 parts of glass fiber, defibering by using a defibering machine, and grinding on line by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the pulp prepared in the step a) and the step b), adding 10-15 parts of defibered melamine formaldehyde resin fiber, 10-15 parts of polyisophthaloyl metaphenylene diamine fiber, 5-15 parts of phenolic fiber and 5-15 parts of polyimide fiber, and uniformly stirring to obtain target paper pulp;
d) forming the target pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type cylinder paper machine;
e) preparing an impregnant, namely putting 20-40 parts of methanol, 10-20 parts of polyacrylamide, 2-5 parts of simethicone, 2-5 parts of polyvinyl alcohol and 5-10 parts of PAE resin into a reaction kettle, fully stirring for not less than 2 hours at the temperature of 50-80 ℃, cooling to room temperature, and filtering by using 60-100 meshes of gauze to obtain the target impregnant;
f) placing the formed paper prepared in the step d) into the target impregnant prepared in the step e) for soaking for not less than 6 hours, wherein the soaking mode adopts a roll coating method of a gravure screen printing surface;
e) drying and curing the impregnated paper by a drying cylinder to obtain the target flame-retardant air filter paper.
The flame-retardant air filter paper and the preparation method thereof have the following advantages: high filtering performance, high fire resistance, high strength, high toughness and long service life.
Drawings
FIG. 1 is a table of technical parameters for flame retardant air filter paper.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Comparative example
A flame retardant air filter paper product made by the steps of:
(1) diluting the water-based impregnated flame retardant to 1-15% by water to obtain a flame retardant solution;
(2) diluting the water-based styrene-acrylic emulsion with water to a solid content of 1% -10% to obtain a styrene-acrylic emulsion for impregnation;
(3) mixing mercerized pulp, polyester fiber and softwood pulp according to the mass ratio of 20-60%, 20-50% and 20-60%, defibering, and making raw paper of air filter paper;
(4) immersing air filter paper base paper into the flame retardant solution for 10-60 s, taking out, removing the redundant flame retardant solution on the surface, and curing at 50-120 ℃ for 10-60 s to obtain flame retardant base paper;
(5) and (3) immersing the flame-retardant base paper into the styrene-acrylic emulsion for dipping for 10-60 s, taking out, removing the redundant styrene-acrylic emulsion on the surface, and curing at 50-120 ℃ for 10-60 s to obtain the flame-retardant air filter paper.
The main performance indexes comprise 130L of air permeability per square meter, S, 23.1 N.m/g of tensile strength, 2.42kPa of burst index per square meter, 37.1 mu m of maximum aperture and 4mm of carbonization length.
Example 1
The flame-retardant air filter paper is prepared from the following components in parts by weight: 30 parts of alkali-treated cotton linter pulp, 10 parts of glass fiber, 10 parts of melamine formaldehyde resin fiber, 10 parts of polyisophthaloyl metaphenylene diamine fiber, 5 parts of phenolic fiber, 5 parts of polyimide fiber, 10 parts of viscose fiber, 20 parts of methanol, 10 parts of polyacrylamide, 2 parts of dimethyl silicone oil, 2 parts of polyvinyl alcohol and 5 parts of PAE resin.
The target flame-retardant air filter paper is prepared according to the following steps:
a) defibering the cotton linter pulp subjected to alkali treatment by using a defibering machine, and performing online grinding by using a double-disc refiner to obtain paper pulp with the pulp degree of 15-17 DEG SR;
b) defibering glass fibers by using a defibering machine, and grinding the glass fibers on line by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the pulp prepared in the step a) and the step b), adding the defibered melamine formaldehyde resin fiber, the polyisophthaloyl metaphenylene diamine fiber, the phenolic fiber and the polyimide fiber, and uniformly stirring to prepare target paper pulp;
d) forming the target pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type cylinder paper machine;
e) preparing an impregnant, putting the obtained methanol, polyacrylamide, dimethyl silicone oil, polyvinyl alcohol and PAE resin into a reaction kettle, fully stirring for not less than 2 hours at the temperature of 50-80 ℃, cooling to room temperature, and filtering by using 60-100 mesh gauze to obtain the target impregnant;
f) placing the formed paper prepared in the step d) into the target impregnant prepared in the step e) for soaking for not less than 6 hours, wherein the soaking mode adopts a roll coating method of a gravure screen printing surface;
e) drying and curing the impregnated paper by a drying cylinder to obtain the target flame-retardant air filter paper.
Example 2
The flame-retardant air filter paper is prepared from the following components in parts by weight: 40 parts of alkali-treated cotton linter pulp, 17 parts of glass fiber, 12 parts of melamine formaldehyde resin fiber, 12 parts of polyisophthaloyl metaphenylene diamine fiber, 8 parts of phenolic fiber, 8 parts of polyimide fiber, 13 parts of viscose fiber, 25 parts of methanol, 13 parts of polyacrylamide, 3 parts of simethicone, 3 parts of polyvinyl alcohol and 7 parts of PAE resin.
The target flame-retardant air filter paper is prepared according to the following steps:
a) defibering the cotton linter pulp subjected to alkali treatment by using a defibering machine, and performing online grinding by using a double-disc refiner to obtain paper pulp with the pulp degree of 15-17 DEG SR;
b) defibering glass fibers by using a defibering machine, and grinding the glass fibers on line by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the pulp prepared in the step a) and the step b), adding the defibered melamine formaldehyde resin fiber, the polyisophthaloyl metaphenylene diamine fiber, the phenolic fiber and the polyimide fiber, and uniformly stirring to prepare target paper pulp;
d) forming the target pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type cylinder paper machine;
e) preparing an impregnant, putting the obtained methanol, polyacrylamide, dimethyl silicone oil, polyvinyl alcohol and PAE resin into a reaction kettle, fully stirring for not less than 2 hours at the temperature of 50-80 ℃, cooling to room temperature, and filtering by using 60-100 mesh gauze to obtain the target impregnant;
f) placing the formed paper prepared in the step d) into the target impregnant prepared in the step e) for soaking for not less than 6 hours, wherein the soaking mode adopts a roll coating method of a gravure screen printing surface;
e) drying and curing the impregnated paper by a drying cylinder to obtain the target flame-retardant air filter paper.
Example 3
The flame-retardant air filter paper is prepared from the following components in parts by weight: 50 parts of alkali-treated cotton linter pulp, 24 parts of glass fiber, 14 parts of melamine formaldehyde resin fiber, 14 parts of polyisophthaloyl metaphenylene diamine fiber, 12 parts of phenolic fiber, 12 parts of polyimide fiber, 17 parts of viscose fiber, 33 parts of methanol, 16 parts of polyacrylamide, 4 parts of dimethyl silicone oil, 4 parts of polyvinyl alcohol and 9 parts of PAE resin.
The target flame-retardant air filter paper is prepared according to the following steps:
a) defibering the cotton linter pulp subjected to alkali treatment by using a defibering machine, and performing online grinding by using a double-disc refiner to obtain paper pulp with the pulp degree of 15-17 DEG SR;
b) defibering glass fibers by using a defibering machine, and grinding the glass fibers on line by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the pulp prepared in the step a) and the step b), adding the defibered melamine formaldehyde resin fiber, the polyisophthaloyl metaphenylene diamine fiber, the phenolic fiber and the polyimide fiber, and uniformly stirring to prepare target paper pulp;
d) forming the target pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type cylinder paper machine;
e) preparing an impregnant, putting the obtained methanol, polyacrylamide, dimethyl silicone oil, polyvinyl alcohol and PAE resin into a reaction kettle, fully stirring for not less than 2 hours at the temperature of 50-80 ℃, cooling to room temperature, and filtering by using 60-100 mesh gauze to obtain the target impregnant;
f) placing the formed paper prepared in the step d) into the target impregnant prepared in the step e) for soaking for not less than 6 hours, wherein the soaking mode adopts a roll coating method of a gravure screen printing surface;
e) drying and curing the impregnated paper by a drying cylinder to obtain the target flame-retardant air filter paper.
Example 4
The flame-retardant air filter paper is prepared from the following components in parts by weight: 60 parts of alkali-treated cotton linter pulp, 30 parts of glass fiber, 15 parts of melamine formaldehyde resin fiber, 15 parts of polyisophthaloyl metaphenylene diamine fiber, 15 parts of phenolic fiber, 15 parts of polyimide fiber, 20 parts of viscose fiber, 40 parts of methanol, 20 parts of polyacrylamide, 5 parts of dimethyl silicone oil, 5 parts of polyvinyl alcohol and 10 parts of PAE resin.
The target flame-retardant air filter paper is prepared according to the following steps:
a) defibering the cotton linter pulp subjected to alkali treatment by using a defibering machine, and performing online grinding by using a double-disc refiner to obtain paper pulp with the pulp degree of 15-17 DEG SR;
b) defibering glass fibers by using a defibering machine, and grinding the glass fibers on line by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the pulp prepared in the step a) and the step b), adding the defibered melamine formaldehyde resin fiber, the polyisophthaloyl metaphenylene diamine fiber, the phenolic fiber and the polyimide fiber, and uniformly stirring to prepare target paper pulp;
d) forming the target pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type cylinder paper machine;
e) preparing an impregnant, putting the obtained methanol, polyacrylamide, dimethyl silicone oil, polyvinyl alcohol and PAE resin into a reaction kettle, fully stirring for not less than 2 hours at the temperature of 50-80 ℃, cooling to room temperature, and filtering by using 60-100 mesh gauze to obtain the target impregnant;
f) placing the formed paper prepared in the step d) into the target impregnant prepared in the step e) for soaking for not less than 6 hours, wherein the soaking mode adopts a roll coating method of a gravure screen printing surface;
e) drying and curing the impregnated paper by a drying cylinder to obtain the target flame-retardant air filter paper.
The performance of the flame-retardant air filter paper prepared in the comparative example and the examples 1 to 4 is tested, and the test results are shown in the table 1, wherein the quantitative test adopts a GB/T451.2-2002 paper and paperboard quantitative side determination method; the thickness measurement is carried out according to the regulation of GB/T451.3; the tensile strength is measured by adopting the Z-direction tensile strength of GB/T31110-2014 paper and paperboard; the determination of the air permeability is measured according to the provisions of GB/TGB/T-1997; the burst strength is measured according to the GB/T454-2002, and the test direction is that the filter paper is burst from the inflow surface to the outflow surface of the fluid when in use; flame retardant rating is according to JB/T12651.2-2016 Filter paper for internal Combustion engines second part: the detection method is performed.
As can be seen from the contents in Table 1, the flame-retardant air filter paper obtained by the invention has high strength, toughness, air permeability, bursting strength and flame-retardant rating, and the air permeability and bursting strength are not obviously reduced after a flame-retardant test.
The raw materials and equipment used in the present invention are all the ones that are commonly used in the art unless otherwise specified, and the methods used in the present invention are all the ones that are conventional in the art unless otherwise specified.
The flame-retardant air filter paper and the preparation method thereof have the beneficial effects of high filtering performance, high flame retardance, high strength, good toughness and long service life.
Claims (5)
1. The flame-retardant air filter paper is characterized by comprising the following components in parts by weight:
30-60 parts of alkali-treated linter pulp;
10-30 parts of glass fiber;
10-15 parts of melamine formaldehyde resin fiber;
10-15 parts of polyisophthaloyl metaphenylene diamine fiber;
5-15 parts of phenolic fiber;
5-15 parts of polyimide fiber.
2. A fire retardant air filter paper as defined in claim 1, wherein said glass fibers have a particle size of not more than 100 nm.
3. A fire retardant air filter paper as defined in claim 1 wherein the fire retardant air filter paper has a basis weight of 180 ± 5g/m2。
4. A fire retardant air filter paper as defined in claim 1, 2 or 3, further comprising 10-20 parts by weight of viscose fiber.
5. A method of making a fire retardant air filter paper as defined in claim 1 paper 4, comprising the steps of:
a) taking 30-60 parts of alkali-treated linter pulp, defibering the linter pulp by using a defibering machine, and grinding the linter pulp on line by using a double-disc refiner to obtain pulp with the pulp degree of 15-17 DEG SR;
b) taking 10-30 parts of glass fiber, defibering by using a defibering machine, and grinding on line by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the pulp prepared in the step a) and the step b), adding 10-15 parts of defibered melamine formaldehyde resin fiber, 10-15 parts of polyisophthaloyl metaphenylene diamine fiber, 5-15 parts of phenolic fiber and 5-15 parts of polyimide fiber, and uniformly stirring to obtain target paper pulp;
d) forming the target pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type cylinder paper machine;
e) preparing an impregnant, namely putting 20-40 parts of methanol, 10-20 parts of polyacrylamide, 2-5 parts of simethicone, 2-5 parts of polyvinyl alcohol and 5-10 parts of PAE resin into a reaction kettle, fully stirring for not less than 2 hours at the temperature of 50-80 ℃, cooling to room temperature, and filtering by using 60-100 meshes of gauze to obtain the target impregnant;
f) placing the formed paper prepared in the step d) into the target impregnant prepared in the step e) for soaking for not less than 6 hours, wherein the soaking mode adopts a roll coating method of a gravure screen printing surface;
g) drying and curing the impregnated paper by a drying cylinder to obtain the target flame-retardant air filter paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222548.6A CN113445364B (en) | 2020-03-26 | 2020-03-26 | Flame-retardant air filter paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222548.6A CN113445364B (en) | 2020-03-26 | 2020-03-26 | Flame-retardant air filter paper and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113445364A true CN113445364A (en) | 2021-09-28 |
| CN113445364B CN113445364B (en) | 2023-11-14 |
Family
ID=77807294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010222548.6A Active CN113445364B (en) | 2020-03-26 | 2020-03-26 | Flame-retardant air filter paper and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113445364B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196829A (en) * | 1995-01-27 | 1996-08-06 | Mitsubishi Paper Mills Ltd | Air cleaning filter medium and its production |
| JPH09195195A (en) * | 1996-01-25 | 1997-07-29 | Oji Paper Co Ltd | Dry pulp for paper making |
| JPH1085529A (en) * | 1996-09-19 | 1998-04-07 | Gun Ei Chem Ind Co Ltd | Filter paper for filtration and its manufacturing |
| CN102899968A (en) * | 2012-09-20 | 2013-01-30 | 蚌埠凤凰滤清器有限责任公司 | Flame retardant air filter paper for automobile and preparation method thereof |
| CN104894913A (en) * | 2015-05-11 | 2015-09-09 | 杭州特种纸业有限公司 | Flame-retardant air filter paper, preparation method therefor and application thereof |
| CN105821710A (en) * | 2016-04-22 | 2016-08-03 | 苏州派欧技术咨询服务有限公司 | Hydrophobic filter paper and preparation method thereof |
| CN105970737A (en) * | 2016-06-29 | 2016-09-28 | 杭州特种纸业有限公司 | Rapid qualitative filter paper and preparation method thereof |
| CN106087583A (en) * | 2016-06-29 | 2016-11-09 | 杭州特种纸业有限公司 | High-strength chemical fiber filter paper and preparation method thereof |
| CN107034720A (en) * | 2017-06-12 | 2017-08-11 | 杭州特种纸业有限公司 | Base paper of latex sandpaper and its preparation method and application |
| CN107178001A (en) * | 2017-07-20 | 2017-09-19 | 常州罗尼克过滤设备有限公司 | A kind of filter paper and its production technology |
| CN107245908A (en) * | 2017-06-12 | 2017-10-13 | 杭州特种纸业有限公司 | High-performance air paper and its preparation method and application |
| CN107419609A (en) * | 2017-06-12 | 2017-12-01 | 杭州特种纸业有限公司 | Composite fuel filter paper and its preparation method and application |
| CN107419608A (en) * | 2017-06-12 | 2017-12-01 | 杭州特种纸业有限公司 | Composite air filter paper and its preparation method and application |
| CN108797210A (en) * | 2018-06-30 | 2018-11-13 | 合肥晶诺知识产权信息服务有限责任公司 | A kind of filter filter paper preparation process |
| CN110541328A (en) * | 2019-08-30 | 2019-12-06 | 华南理工大学 | Washable flame-retardant automobile air filter paper and preparation method thereof |
-
2020
- 2020-03-26 CN CN202010222548.6A patent/CN113445364B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196829A (en) * | 1995-01-27 | 1996-08-06 | Mitsubishi Paper Mills Ltd | Air cleaning filter medium and its production |
| JPH09195195A (en) * | 1996-01-25 | 1997-07-29 | Oji Paper Co Ltd | Dry pulp for paper making |
| JPH1085529A (en) * | 1996-09-19 | 1998-04-07 | Gun Ei Chem Ind Co Ltd | Filter paper for filtration and its manufacturing |
| CN102899968A (en) * | 2012-09-20 | 2013-01-30 | 蚌埠凤凰滤清器有限责任公司 | Flame retardant air filter paper for automobile and preparation method thereof |
| CN104894913A (en) * | 2015-05-11 | 2015-09-09 | 杭州特种纸业有限公司 | Flame-retardant air filter paper, preparation method therefor and application thereof |
| CN105821710A (en) * | 2016-04-22 | 2016-08-03 | 苏州派欧技术咨询服务有限公司 | Hydrophobic filter paper and preparation method thereof |
| CN105970737A (en) * | 2016-06-29 | 2016-09-28 | 杭州特种纸业有限公司 | Rapid qualitative filter paper and preparation method thereof |
| CN106087583A (en) * | 2016-06-29 | 2016-11-09 | 杭州特种纸业有限公司 | High-strength chemical fiber filter paper and preparation method thereof |
| CN107034720A (en) * | 2017-06-12 | 2017-08-11 | 杭州特种纸业有限公司 | Base paper of latex sandpaper and its preparation method and application |
| CN107245908A (en) * | 2017-06-12 | 2017-10-13 | 杭州特种纸业有限公司 | High-performance air paper and its preparation method and application |
| CN107419609A (en) * | 2017-06-12 | 2017-12-01 | 杭州特种纸业有限公司 | Composite fuel filter paper and its preparation method and application |
| CN107419608A (en) * | 2017-06-12 | 2017-12-01 | 杭州特种纸业有限公司 | Composite air filter paper and its preparation method and application |
| CN107178001A (en) * | 2017-07-20 | 2017-09-19 | 常州罗尼克过滤设备有限公司 | A kind of filter paper and its production technology |
| CN108797210A (en) * | 2018-06-30 | 2018-11-13 | 合肥晶诺知识产权信息服务有限责任公司 | A kind of filter filter paper preparation process |
| CN110541328A (en) * | 2019-08-30 | 2019-12-06 | 华南理工大学 | Washable flame-retardant automobile air filter paper and preparation method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 于海涛: "棉短绒浆、阔叶木浆及合成纤维配抄汽车滤纸", 《国际造纸》, vol. 33, no. 2, pages 245 - 29 * |
| 张桂萍;: "滤纸的分类及打浆工艺", 天津造纸, no. 02 * |
| 王军利, 陈夫山, 刘忠: "无机纤维纸", 湖北造纸, no. 02 * |
| 田中辰雄: "滤纸", 《国际造纸》, vol. 9, no. 4, pages 39 * |
| 罗先毅;夏新兴;: "活性炭净水过滤纸的研究进展和发展趋势", 天津造纸, no. 02 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113445364B (en) | 2023-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11819788B2 (en) | Nonwoven filtration media including microfibrillated cellulose fibers | |
| CN109989296B (en) | Multilayer filter paper and preparation method thereof | |
| CN110541328B (en) | Washable flame-retardant automobile air filter paper and preparation method thereof | |
| CN111254753B (en) | Efficient water-resistant air filtering material and preparation method thereof | |
| US8444814B2 (en) | Paper comprising PIPD floc and process for making the same | |
| JP2012500864A (en) | Folding core with high compressibility and article made therefrom | |
| US10767316B2 (en) | Paper comprising aramid pulp and a friction paper made therefrom | |
| CN113445364A (en) | Flame-retardant air filter paper and preparation method thereof | |
| CN107190558A (en) | Compound diesel filter paper and its preparation method and application | |
| CN112726287A (en) | High-temperature-resistant flame-retardant glue solution and preparation method of automobile air filter paper using same | |
| CN111235959B (en) | Multilayer oil-water separation material and preparation method and application thereof | |
| US4157937A (en) | Resole resin and polyvinyl acetate impregnated filter paper | |
| KR20080083171A (en) | Pipd paper and components made therefrom | |
| CN111424463A (en) | Preparation method of fast curing dip-coating glue solution and fast curing engine oil filter paper | |
| CN115726221A (en) | Medium-speed quantitative filter paper and preparation method thereof | |
| CN110252031B (en) | Nuclear grade water filter element filter material and preparation method thereof | |
| CN113863046A (en) | Thermosetting air filter paper and preparation method thereof | |
| CN113969517A (en) | Diesel oil filter paper and preparation method thereof | |
| CN113802415A (en) | Manufacturing process of engine oil filter paper | |
| CN113914127A (en) | Engine oil filter paper and preparation method thereof | |
| CN118326745A (en) | Flame-retardant automobile air filter paper and preparation method thereof | |
| CN113931010B (en) | Fuel filter paper and preparation method thereof | |
| CN110496451A (en) | Oil strainer filter core | |
| CN111218852A (en) | Air filter high-temperature-resistant filter element paper | |
| CN113737567B (en) | Low-cost high-performance aramid composite paper and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |