CN113718546A - Silicon dioxide air filter paper and preparation method thereof - Google Patents
Silicon dioxide air filter paper and preparation method thereof Download PDFInfo
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- CN113718546A CN113718546A CN202010448299.2A CN202010448299A CN113718546A CN 113718546 A CN113718546 A CN 113718546A CN 202010448299 A CN202010448299 A CN 202010448299A CN 113718546 A CN113718546 A CN 113718546A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 64
- 235000012239 silicon dioxide Nutrition 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 44
- 239000011122 softwood Substances 0.000 claims abstract description 19
- 230000014759 maintenance of location Effects 0.000 claims abstract description 14
- 229920000728 polyester Polymers 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920002873 Polyethylenimine Polymers 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 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 abstract description 8
- 239000003063 flame retardant Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 229920000139 polyethylene terephthalate Polymers 0.000 description 17
- 239000005020 polyethylene terephthalate Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000001179 sorption measurement Methods 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000008104 plant cellulose Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- 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
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- 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
- D21H13/24—Polyesters
-
- 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
-
- 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
- D21H15/10—Composite 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
- 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
- D21H17/56—Polyamines; Polyimines; Polyester-imides
-
- 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
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Filtering Materials (AREA)
- Paper (AREA)
Abstract
The invention relates to the technical field of filter materials, and discloses silicon dioxide air filter paper and a preparation method thereof, wherein 40-50 parts of softwood pulp are fluffed and then polished to obtain paper pulp with the pulp size of 17-20 DEG SR; taking 40-50 parts of silicon dioxide fibers for defibering, and then polishing to obtain paper pulp with the pulp degree of 2-5 DEG SR; mixing the prepared slurry in a slurry forming pool, and adding 5-10 parts of thinned PET and pp composite short fibers, 1-10 parts of polyester long fibers and 10-20 parts of retention aid for homogenizing; molding the pulp prepared by the steps on an inclined wire paper machine or a flow measuring type round wire paper machine; the silica air filter paper has the beneficial effects of strong adsorbability, good flame retardant property, no need of treatment after use, no secondary pollution, good toughness, high strength, difficult falling of silica and long service life.
Description
Technical Field
The invention relates to the technical field of filter materials, in particular to silicon dioxide air filter paper and a preparation method thereof.
Background
The air filter paper is an air filter material for manufacturing an air filter, and the activated carbon has the advantages of developed void structure, larger contact area and good adsorption performance on gaseous substances, so the activated carbon is often used as the filter material of the air filter, but the activated carbon filter paper has many defects, such as only being capable of adsorbing volatile organic gases and having insignificant adsorption on other acid and alkaline gases; the flame retardant property is poor, and the flame retardant is easy to burn when the temperature is too high; after the use, toxicity or corrosiveness is attached, and special treatment is needed; the service life is not accurate and is different due to different use environments and use modes; when the adsorption capacity reaches the upper limit, the adsorption capacity is rapidly lost due to the existence of the saturation effect, if the adsorption capacity cannot be replaced in time, the gas molecules lose the holding force due to the existence of the van der waals force, so that secondary release is caused, and secondary pollution is formed, for example, the adsorption capacity of the adsorption capacity reaches the upper limit of the adsorption capacity, and the adsorption capacity of the adsorption capacity reaches the lower limit of the adsorption capacity, for example, the adsorption capacity of the adsorption capacity: CN 107724183A, application published 2018, No. 02 and 23, inventing a high-performance activated carbon paper and a production method thereof, wherein the activated carbon paper consists of activated carbon, plant cellulose, polyester fiber pulp, PE/PET composite chopped fibers and a sizing agent, and the high-performance activated carbon paper is prepared by the steps of preparing plant cellulose pulp and preparing the polyester fiber pulp
The preparation, the preparation of active carbon slurry and the drying and forming steps. The filter paper has the defects of insignificant adsorptivity to acid and alkaline gases, poor flame retardant property, special treatment after use and easy secondary pollution.
Disclosure of Invention
The invention provides the silicon dioxide air filter paper which has strong adsorbability, good flame retardant property, no need of treatment after use, no secondary pollution, good toughness, high strength, difficult falling of silicon dioxide and long service life and the preparation method thereof, aiming at solving the defects that the activated carbon air filter paper in the prior art has poor adsorbability on acid and alkali gases, needs special treatment after use and is easy to form secondary pollution.
In order to achieve the purpose, the invention adopts the following technical scheme:
the silicon dioxide air filter paper comprises the following components in parts by weight:
40-50 parts of softwood pulp, 40-50 parts of silica filler, 5-10 parts of PET and pp composite short fiber and 1-10 parts of polyester long fiber.
The silica air filter paper prepared by the following preparation method by taking the raw materials in the component ratio has the main performance indexes of 180 +/-5 kPa dry burst strength, 32.5 +/-5N/m stiffness, 1.6 +/-0.2 Km longitudinal fracture length, 0.90 +/-0.2 Km transverse fracture length, 1:1.80 aspect ratio, 105 +/-10 mm/min water absorption height, 56.4 +/-5L air permeability (127 Pa), per square meter, S and 0.3 +/-0.1 g/cm firmness. In the component proportion, the main components of the silica air filter paper are composed of the softwood pulp and the silica filler, the silica air filter paper has the advantages of strong adsorbability, good flame retardant property, no need of treatment after use and no secondary pollution, but the silica filler has brittle texture and poor toughness, the phenomenon that the silica falls off easily occurs when the filter paper is bent, the filter paper is influenced in use effect and service life, so that PET and pp composite short fibers and polyester long fibers are required to be added as the secondary components of the silica air filter paper, the integral toughness and strength of the filter paper are improved, the silica is prevented from falling when the filter paper is bent, and the service life of the filter paper is prolonged.
Preferably, the silica filler is silica fibers having a particle size of no greater than 100 nm. The silica fiber having a small particle size is advantageous for the inter-weaving of the fiber, and a filter paper having a good strength can be obtained.
Preferably, the pp and PET are in a weight percentage of 2: 3 or 1:2 or 2: 5. PP has the characteristics of good thermoplasticity, light specific gravity and chemical corrosion resistance, and PET has the characteristics of good mechanical property, good folding resistance, oil resistance, fat resistance, weak acid and weak base resistance and the like.
Preferably, 10-20 parts of retention aid is also included by weight. The retention aid can assist the silica filler to be attached to the filter paper to prevent falling off.
Preferably, the retention aid is a polyethyleneimine solution or a polyacrylamide solution.
Preferably, the filter paper has a basis weight of 105 ± 15g per square meter. 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.
A preparation method of silica air filter paper comprises the following steps:
a) taking 40-50 parts of softwood pulp, defibering the softwood pulp by using a defibering machine, and grinding the softwood pulp on line by using a double-disc refiner to obtain paper pulp with the pulp size of 17-20 DEG SR;
b) taking 40-50 parts of silicon dioxide filler, defibering by using a defibering machine, and performing online grinding by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the slurry prepared in the step a) and the step b) in a slurry forming pool, and adding 5-10 parts of untwined PET and pp composite short fibers, 1-10 parts of polyester long fibers and 10-20 parts of retention aids for homogenizing;
d) forming the pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type circular wire paper machine;
e) drying and curing the formed paper by a drying cylinder to obtain the target silicon dioxide air filter paper.
The silicon dioxide air filter paper and the preparation method thereof have the following advantages: strong adsorptivity, good flame retardant property, no need of treatment after use, no secondary pollution, good toughness, high strength, difficult falling of silicon dioxide and long service life.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments.
Comparative example
The air filter paper product comprises 40 parts by weight of wood fiber with the diameter of 1 mu m, mixed fiber with the length of 10 mu m and wollastonite fiber with the diameter of 160nm, 40 parts of dimethylbenzene, 10 parts of p-dimethylamide and 2 parts of cumene hydroperoxide, and has the main performance indexes of 72kPa burst resistance, 1.22Km longitudinal fracture length, 0.71Km transverse fracture length, 0.27g/cm firmness 2, 88mm/min water absorption height and 48.4L/sq.
Example 1
The silicon dioxide air filter paper is prepared from the following components in parts by weight: 40 parts of softwood pulp, 40 parts of silica fibers with the particle size not larger than 100nm, 5 parts of PET and pp composite short fibers, 1 part of polyester long fibers and 10 parts of retention aid, wherein the pp and PET are in a weight percentage of 2: 3.
the silicon dioxide air filter paper is prepared according to the following steps:
a) defibering softwood pulp by using a defibering machine, and grinding the softwood pulp on line by using a double-disc refiner to obtain paper pulp with the pulp size of 17-20 DEG SR;
b) taking silicon dioxide fibers, defibering the silicon dioxide fibers by using a defibering machine, and grinding the silicon dioxide 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 slurry prepared in the step a) and the step b) in a slurry forming pool, and adding the defibered PET and pp composite short fibers, polyester long fibers and retention aid for homogenizing;
d) forming the pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type circular wire paper machine;
e) drying and curing the formed paper by a drying cylinder to obtain the target silicon dioxide air filter paper.
Example 2
The silicon dioxide air filter paper is prepared from the following components in parts by weight: 45 parts of softwood pulp, 45 parts of silica fibers with the particle size not larger than 100nm, 8 parts of PET (polyethylene terephthalate) and pp composite short fibers, 6 parts of polyester long fibers and 14 parts of retention aid, wherein the pp and PET are 1: 2.
the silicon dioxide air filter paper is prepared according to the following steps:
a) defibering softwood pulp by using a defibering machine, and grinding the softwood pulp on line by using a double-disc refiner to obtain paper pulp with the pulp size of 17-20 DEG SR;
b) taking silicon dioxide fibers, defibering the silicon dioxide fibers by using a defibering machine, and grinding the silicon dioxide 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 slurry prepared in the step a) and the step b) in a slurry forming pool, and adding the defibered PET and pp composite short fibers, polyester long fibers and retention aid for homogenizing;
d) forming the pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type circular wire paper machine;
e) drying and curing the formed paper by a drying cylinder to obtain the target silicon dioxide air filter paper.
Example 3
The silicon dioxide air filter paper is prepared from the following components in parts by weight: 50 parts of softwood pulp, 50 parts of silica fibers with the particle size not larger than 100nm, 10 parts of PET (polyethylene terephthalate) and pp composite short fibers, 10 parts of polyester long fibers and 20 parts of retention aid, wherein the pp and PET are in a weight percentage of 2: 5.
the silicon dioxide air filter paper is prepared according to the following steps:
a) defibering softwood pulp by using a defibering machine, and grinding the softwood pulp on line by using a double-disc refiner to obtain paper pulp with the pulp size of 17-20 DEG SR;
b) taking silicon dioxide fibers, defibering the silicon dioxide fibers by using a defibering machine, and grinding the silicon dioxide 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 slurry prepared in the step a) and the step b) in a slurry forming pool, and adding the defibered PET and pp composite short fibers, polyester long fibers and retention aid for homogenizing;
d) forming the pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type circular wire paper machine;
e) drying and curing the formed paper by a drying cylinder to obtain the target silicon dioxide air filter paper.
The water absorption capacity is 72kPa, the longitudinal fracture length is 1.22Km, the transverse fracture length is 0.71Km, the tightness is 0.27g/cm2, the water absorption height is 88mm/min, and the air permeability (127 Pa) is 48.4L/square meter.
The rapid qualitative filter paper prepared in the comparative example and the examples 1 to 3 is subjected to performance detection, the detection results are shown in the table 1, and the quantitative measurement adopts a GB/T451.2-2002 paper and paperboard quantitative side determination method; the bursting strength is measured by adopting GB/T454-2002 paper bursting strength, and the tensile strength is measured by adopting a GB/T12914-; the tightness is measured by measuring the thickness of GB/T451.3-2002 paper and paperboard; the measurement of the air permeability adopts the measurement of the air permeability of GB T458-2008 paper and paperboard; the water absorption height measuring instrument is a Hertz format instrument, at least 6 samples with the diameter of (50 +/-0.5) mm are cut along the horizontal width of a paper sheet for standby application, a cylinder is filled with distilled water or deionized water or purified water with the equivalent purity, the invention is closed, a water valve is opened, the water level of the cylinder is reduced to 325mm, a single sample is placed in a room for replacement, and the sample is clamped; gradually unscrewing the air valve at a speed of preferably 20 mm-30 mm within 5s of the water level in the funnel tube, gradually increasing the water pressure borne by the sample until the sample is broken, reading the height of the water level in the funnel tube at the moment, wherein the height is the wet burst strength of the sample and is the unit of mm water column (1 mm water column =9.8 Pa), measuring 4 samples by each sample, and expressing the result by the average value of the measurement results of the 4 samples.
Table 1:
as can be seen from the contents of Table 1, the silica air filter paper obtained by the present invention has the advantages of high strength, high tightness, strong adsorption and high air permeability.
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 silicon dioxide air filter paper has the beneficial effects of strong adsorbability, good flame retardant property, no need of treatment after use, no secondary pollution, good toughness, high strength, difficult falling of silicon dioxide and long service life.
Claims (7)
1. The silicon dioxide air filter paper is characterized by comprising the following components in parts by weight:
40-50 parts of softwood pulp;
40-50 parts of silica filler;
5-10 parts of PET and pp composite short fibers;
1-10 parts of polyester filament.
2. A silica air filter paper according to claim 1 wherein the silica filler is silica fibres having a particle size of no more than 100 nm.
3. Silica air-filter paper according to claim 1, wherein the PET and pp are in a weight percentage of 2: 3 or 1:2 or 2: 5.
4. A silica air filter paper according to claim 1, 2 or 3, further comprising 10 to 20 parts by weight of a retention aid.
5. The silica air-filter paper of claim 4, wherein the retention aid is a polyethyleneimine solution or a polyacrylamide solution.
6. A silica air filtration paper according to claim 1 or 2 or 3 or 4 or 5 wherein the basis weight is 120 ± 10g per square meter.
7. A method of making silica air filter paper as claimed in claims 1 to 5 comprising the steps of:
a) taking 40-50 parts of softwood pulp, defibering the softwood pulp by using a defibering machine, and grinding the softwood pulp on line by using a double-disc refiner to obtain paper pulp with the pulp size of 17-20 DEG SR;
b) taking 40-50 parts of silicon dioxide filler, defibering by using a defibering machine, and performing online grinding by using a double-disc refiner to obtain paper pulp with the pulp degree of 2-5 DEG SR;
c) mixing the slurry prepared in the step a) and the step b) in a slurry forming pool, and adding 5-10 parts of untwined PET and pp composite short fibers, 1-10 parts of polyester long fibers and 10-20 parts of retention aids for homogenizing;
d) forming the pulp prepared in the step c) on an inclined wire paper machine or a flow measuring type circular wire paper machine;
e) drying and curing the formed paper by a drying cylinder to obtain the target silicon dioxide air filter paper.
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04100993A (en) * | 1990-08-20 | 1992-04-02 | Tokiwa Denki:Kk | Non-flammable paper |
| RU2123878C1 (en) * | 1997-05-23 | 1998-12-27 | Государственный научный центр Российской Федерации Всероссийский научно-исследовательский институт неорганических материалов им.акад.А.А.Бочвара | Method of manufacturing highly heat-resistant filter material |
| CN101404969A (en) * | 2006-03-31 | 2009-04-08 | 宝洁公司 | Absorbent article comprising a fibrous structure comprising synthetic fibers and a hydrophilizing agent |
| JP2010116631A (en) * | 2008-11-11 | 2010-05-27 | Okamoto Ind Inc | Wallpaper |
| CN101974869A (en) * | 2010-11-18 | 2011-02-16 | 浙江华邦特种纸业有限公司 | High air permeability non-woven base wallpaper and products thereof |
| 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 |
| CN103908837A (en) * | 2014-04-15 | 2014-07-09 | 重庆造纸工业研究设计院有限责任公司 | Composite filter material for heat-setting-free pleated filter cartridge and processing method of composite filter material |
| CN105672028A (en) * | 2016-01-18 | 2016-06-15 | 浙江科技学院 | Flame-retardant plant fiber and flame-retardant paper |
| CN105672045A (en) * | 2016-02-02 | 2016-06-15 | 天津科技大学 | Flame-retardant air filter paper and preparation method |
| CN106120468A (en) * | 2016-07-13 | 2016-11-16 | 蚌埠首创滤清器有限公司 | A kind of two-layer compound fuel oil filter paper of the activated carbon high contact area of doping and preparation method thereof |
| CN106283828A (en) * | 2016-09-19 | 2017-01-04 | 江苏海纳空调净化设备有限公司 | A kind of antimicrobial form air filter paper and production technology thereof |
| CN107313283A (en) * | 2016-04-27 | 2017-11-03 | 上海东冠纸业有限公司 | A kind of preparation method of wettable water paper handkerchief |
| CN107724183A (en) * | 2017-10-26 | 2018-02-23 | 南通三友环保科技有限公司 | A kind of high performance active carbon paper and its production method |
| CN107761436A (en) * | 2017-10-17 | 2018-03-06 | 山东诺尔生物科技有限公司 | A kind of preparation method of absorbent material |
| CN107905019A (en) * | 2017-11-17 | 2018-04-13 | 玖龙纸业（东莞）有限公司 | A kind of preparation method of moisture-proof corrugated paper and moisture-proof corrugated paper therefrom |
| 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
- 2020-05-25 CN CN202010448299.2A patent/CN113718546A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04100993A (en) * | 1990-08-20 | 1992-04-02 | Tokiwa Denki:Kk | Non-flammable paper |
| RU2123878C1 (en) * | 1997-05-23 | 1998-12-27 | Государственный научный центр Российской Федерации Всероссийский научно-исследовательский институт неорганических материалов им.акад.А.А.Бочвара | Method of manufacturing highly heat-resistant filter material |
| CN101404969A (en) * | 2006-03-31 | 2009-04-08 | 宝洁公司 | Absorbent article comprising a fibrous structure comprising synthetic fibers and a hydrophilizing agent |
| JP2010116631A (en) * | 2008-11-11 | 2010-05-27 | Okamoto Ind Inc | Wallpaper |
| CN101974869A (en) * | 2010-11-18 | 2011-02-16 | 浙江华邦特种纸业有限公司 | High air permeability non-woven base wallpaper and products thereof |
| 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 |
| CN103908837A (en) * | 2014-04-15 | 2014-07-09 | 重庆造纸工业研究设计院有限责任公司 | Composite filter material for heat-setting-free pleated filter cartridge and processing method of composite filter material |
| CN105672028A (en) * | 2016-01-18 | 2016-06-15 | 浙江科技学院 | Flame-retardant plant fiber and flame-retardant paper |
| CN105672045A (en) * | 2016-02-02 | 2016-06-15 | 天津科技大学 | Flame-retardant air filter paper and preparation method |
| CN107313283A (en) * | 2016-04-27 | 2017-11-03 | 上海东冠纸业有限公司 | A kind of preparation method of wettable water paper handkerchief |
| CN106120468A (en) * | 2016-07-13 | 2016-11-16 | 蚌埠首创滤清器有限公司 | A kind of two-layer compound fuel oil filter paper of the activated carbon high contact area of doping and preparation method thereof |
| CN106283828A (en) * | 2016-09-19 | 2017-01-04 | 江苏海纳空调净化设备有限公司 | A kind of antimicrobial form air filter paper and production technology thereof |
| CN107761436A (en) * | 2017-10-17 | 2018-03-06 | 山东诺尔生物科技有限公司 | A kind of preparation method of absorbent material |
| CN111172803A (en) * | 2017-10-17 | 2020-05-19 | 山东诺尔生物科技有限公司 | Method for preparing water-absorbing material |
| CN107724183A (en) * | 2017-10-26 | 2018-02-23 | 南通三友环保科技有限公司 | A kind of high performance active carbon paper and its production method |
| CN107905019A (en) * | 2017-11-17 | 2018-04-13 | 玖龙纸业（东莞）有限公司 | A kind of preparation method of moisture-proof corrugated paper and moisture-proof corrugated paper therefrom |
| 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 (4)
| Title |
|---|
| 姜宏亮;: "玻璃纤维滤纸增强的试验研究", 天津造纸, no. 02 * |
| 廖合;黄艳规;吴守耀;黄显南;: "玻璃纤维纸的增强研究", 中华纸业, no. 04 * |
| 李群 等: "纳米纤维素-无机复合材料研究进展", 《天津造纸》, no. 3, pages 187 - 188 * |
| 胡潇雨;刘文波;: "低档纸浆抄造空气滤纸的研究", 黑龙江造纸, no. 01 * |
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