CN109126290A - A kind of high-strength anti-flaming air filting material and preparation method thereof - Google Patents
A kind of high-strength anti-flaming air filting material and preparation method thereof Download PDFInfo
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- CN109126290A CN109126290A CN201811098476.8A CN201811098476A CN109126290A CN 109126290 A CN109126290 A CN 109126290A CN 201811098476 A CN201811098476 A CN 201811098476A CN 109126290 A CN109126290 A CN 109126290A
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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
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- 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
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- 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
- B01D2239/0457—Specific fire retardant or heat resistant properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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Abstract
The invention discloses a kind of high-strength anti-flaming air filting materials and preparation method thereof, belong to filtering material preparation technical field.The present invention obtains nanofiber using lithium chloride and polyacrylonitrile as raw material, forms the filtering reticular structure of low pressure resistance, extends the service life of filtering material；The present invention occurs that Guanidine Sulfamate 99, phosphoguanidine is added by esterification with hydroxyethyl methacrylate and phosphorus pentoxide, it is fire-retardant to form nitrogen phosphorus synergistic, while being fixed on inside filtering material by polymer emulsion, is formed long-acting fire-retardant；Cerous nitrate and molecular sieve is added in the present invention, prevents deliquescence and the destruction of filtering material, and pernicious gas forms the gas harmless to air through Ce elements catalysis oxidation；Present invention introduces 2- methyl-2-propanols and ramee to carry out toughening processing, forms high-intensitive network structure, filtering material is enabled to keep efficient filter effect for a long time.The present invention solves the problems, such as that current air filting material poor filtration effect, service life are short.
Description
Technical field
The invention belongs to filtering material preparation technical fields, and in particular to a kind of high-strength anti-flaming air filting material and its
Preparation method.
Background technique
In air in addition to containing oxygen, hydrogen, also containing other harmful substances such as dust, sandy soil, bacteriums, certain special
It is needed under environmental requirement to air filtration, such as automobile engine, precision instrument workshop, laboratory, operating room, in addition,
Little particle in air can cause respiratory disease or thrombus in human lung's even blood circulation system deposition；And by
It is larger in little particle specific surface area, a large amount of noxious materials such as organic gas, virus, bacterium etc. can be adsorbed.With society
Development, health knowledge is universal, and people increasingly pay attention to the harm problem that fine particle pollutes in air, and air filtration in recent years produces
Product have been increasingly becoming the necessity of life, while filtering material requirement of the market to efficient removal submicron particles pollutant
It greatly improves.Air filting material is wherein common air filting material.
Air filting material is with very extensive, with the rapid development of economy, medicine, bioscience, integrated circuit, nothing
The requirement of the toilets such as bacterium operating room is higher and higher, and traditional air filting material can only pass through increasing to improve filter efficiency
Add quantifying for air filting material, quantitative increases the resistance that often will increase air filting material again, and the increase of resistance will
The service life of air filting material is reduced, simultaneously as increasing quantifying for air filting material, it is necessary to increase manufacture air
The raw material of filtering material improve production cost.In addition, functional air filtering material is the hot spot of Recent study, it is needle
To specific industry such as high temperature resistant, corrosion-resistant, antistatic, water repellent, filtering material that is oily, fire-retardant, removing the exploitations such as pernicious gas is refused,
Such as anti-flammability air filting material.And this, just more require existing air filting material that can efficiently be adapted to specific field
Therefore institute is made that its quality and higher requires standard.In addition, air filting material used is in tide currently on the market
Fungi easy to breed in environment will cause shielded environment in long-term high pressure air quantity and pass through protective layer, into shielded ring
Environmental pollution is caused in border.In addition, since dampness environment is easy that filtrate is allowed to make moist, intensity decline causes making for air filting material
It is substantially reduced with the service life.
In summary, there is defects below mostly for air filting material nowadays in the market: (1) existing air
Filtering material improves filter efficiency by increasing it quantitatively mostly, but quantitative increase often will increase air filtration material again
The resistance of material, the increase of resistance will reduce the service life of air filting material.(2) existing air filting material is not mostly
It can be used in specific scene, the performances such as high temperature resistant, moisture-proof, corrosion-resistant are poor, so that filtering protection strength reduction, service life
It reduces.Therefore a kind of high-strength anti-flaming air filting material and preparation method thereof that long service life filter effect is strong need to be developed.
Summary of the invention
The technical problems to be solved by the invention: short for current air filting material poor filtration effect, service life
Problem provides a kind of high-strength anti-flaming air filting material and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of high-strength anti-flaming air filting material, including filtering material base-material, the agent of moisture absorption catalytic activity, fire-retardant activating agent, resistance
Agent is assisted in combustion；
The preparation method of the filtering material base-material, includes the following steps:
(1) it takes lithium chloride 1 ~ 4:8 in mass ratio ~ 10 that n,N-Dimethylformamide is added, keeps humidity 40 ~ 50%, in
25 ~ 30 DEG C are stirred, and add 4 ~ 6 times of lithium chloride quality of polyacrylonitrile magnetic agitation, obtain stirring mixture；
(2) it takes carbon nanotube that n,N-Dimethylformamide stirring is added by 1 ~ 4:8 of quality ~ 10, obtains mixture, take nitric acid by quality
Sulfuric acid is added than 3 ~ 5:1 ~ 3 to be stirred, obtains mixed liquor, takes mixture 3 ~ 6:30 in mass ratio ~ 40 that mixed liquor is added, is warming up to
100 ~ 110 DEG C are stirred, and filter, and suction filtration slag is taken to wash through deionized water, and rotary evaporation is dry, obtain dried object；
(3) it is mixed that dried object, polyphenylene sulfide fibre is added in the stirring mixture 5 ~ 8:1 in mass ratio for taking step (1) spare ~ 3:4 ~ 7
It closes, obtains mixture a, take mixture a 2 ~ 5:10 in mass ratio ~ 20 that n,N-Dimethylformamide, ultrasonic disperse, in 25 ~ 30 is added
It DEG C is stirred to get filtering material base-material.
The moisture absorption catalytic activity agent the preparation method comprises the following steps:
It takes cerous nitrate 2 ~ 5:10 in mass ratio ~ 20 that deionized water is added, adjusts pH to 10 ~ 11 through ammonium hydroxide, obtain soak, take
Soak is added in NaY molecular sieve 7 ~ 9:90 in mass ratio ~ 100, impregnates in 70 ~ 75 DEG C, filters, and takes and filters slag in 500 ~ 550 DEG C
3 ~ 5h is roasted, is cooled to room temperature, 300 ~ 400 meshes were ground, collects sieving particle to get moisture absorption catalytic activity agent.
The fire-retardant activating agent the preparation method comprises the following steps:
S1. it takes hydroxyethyl methacrylate 10 ~ 20:1 in mass ratio ~ 4 that hydroquinone is added to be stirred, in 2 ~ 5 DEG C of addition first
The phosphorus pentoxide of base hydroxy-ethyl acrylate quality 40 ~ 50% is warming up to 70 ~ 80 DEG C of heat preservations, obtains mixture a, take mixture a by
Hexadecanol is added in 10 ~ 20:3 of mass ratio ~ 7, is stirred in 65 ~ 70 DEG C, must stir mixture a, takes stirring mixture a by matter
Water is added than 3 ~ 9:10 ~ 20 in amount, keeps the temperature in 75 ~ 80 DEG C, is cooled to room temperature, obtains cooled material；
S2. the lauryl sodium sulfate 2 ~ 5:1 in mass ratio ~ addition of 4:10 ~ 15 alkyl phenol polyoxyethylene ether, water is taken to be stirred,
It obtains mixture a and takes 2 ~ 5 parts of methacrylates, 1 ~ 4 part of butyl acrylate, 8 ~ 10 parts of acrylic acid, 2 ~ 6 parts according to the mass fraction
Hydroxy-ethyl acrylate, 5 ~ 9 parts of cooled materials, 40 ~ 50 parts of mixture a are stirred, and must be stirred mixture b, are warming up to 75 ~ 80 DEG C,
The ammonium persulfate that stirring mixture b mass 3 ~ 6% is added is stirred, and is kept the temperature, is cooled to room temperature to get fire-retardant then at 80 ~ 85 DEG C
Activating agent.
That mixture b is stirred in the step S2 is stirred condition are as follows: is stirred 10 in 25 ~ 30 DEG C, 5000r/min
~20min。
The fire-retardant assistance agent are as follows: take Guanidine Sulfamate 99 2 ~ 5:1 in mass ratio ~ 3 be added phosphoguanidine mixing to get.
A kind of preparation method of high-strength anti-flaming air filting material, includes the following steps:
A. it takes 2- methyl-2-propanol 1 ~ 3:7 in mass ratio ~ 9 that water is added, is stirred 20 ~ 30min, adds 2- methyl -2- third
The ramee that 3 ~ 6 times of alcohol quality keeps the temperature 48 ~ 72h in -60 ~ -50 DEG C, 10Pa, obtains mixture b, according to the mass fraction, take 20 ~
30 parts of mixture b, 40 ~ 50 parts of filtering material base-materials, 2 ~ 5 parts of moisture absorption catalytic activity agent, 1 ~ 4 part of neopelex, 5 ~ 9
Part furfuryl alcohol resin, 40 ~ 50 parts of water are stirred, and obtain spinning solution；
B. it takes spinning solution to carry out electrostatic spinning, is cut into basis material, take fire-retardant activating agent 3 ~ 8:1 in mass ratio ~ 3 to be added fire-retardant
Agent mixing is assisted, mixed liquor a is obtained, basis material 1 ~ 4:10 ~ 20 in mass ratio is taken to be dipped in mixed liquor a, is kept the temperature in 50 ~ 60 DEG C
1 ~ 3h takes out basis material after impregnating, dry to get high-strength anti-flaming air filting material.
Spinning solution is stirred condition in the step A are as follows: is stirred 1 ~ 3h in 5000 ~ 10000r/min.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention prepares diameter and the close fiber of air molecule free path, using lithium chloride and polyacrylonitrile as raw material with low
The polyacrylonitrile of molecular weight improves the conductivity of solution as matrix polymer, and by adding chlorination lithium salt solution, obtains
Nanofiber so that detour of the air molecule near nanofiber of the diameter close to air molecule free path carry out it is non-impact
Behavior forms the filtering reticular structure of low pressure resistance, is re-introduced into carbon nanotube and polyphenylene sulfide fibre, improves the surface texture of fiber
Form and degree of roughness increase the contaminant particle in the degree of roughness energy entrapped air of fiber surface, so that pollutant is in mistake
It is accumulated in filter material material reticular structure, improves filter effect, while polyphenylene sulfide fibre has good thermal stability, corrosion-resistant
Property, the durability of filtering material is improved, some high temperature substances are being retained, structure will not be destroyed, and filter material is extended
The service life of material；
(3) present invention with hydroxyethyl methacrylate and phosphorus pentoxide occurs that hexadecanol is added and adds again by esterification
Enter to carry out hydration reaction and obtain the monomer with P elements, then lotion is carried out by methacrylate, hydroxy-ethyl acrylate and is gathered
It closes, is dipped in the polymer emulsion to be formed after material electrostatic spinning, on the one hand can introduce phosphorus member with infiltration material internal
Element is fire-retardant, and the polymer emulsion on the other hand formed improves the mechanics and corrosion resistance of material, is formed to filtering material
Protection extends the durability of material, and Guanidine Sulfamate 99, phosphoguanidine is added, and it is fire-retardant to form nitrogen phosphorus synergistic, while passing through polymer cream
Liquid is fixed on inside filtering material, is formed long-acting fire-retardant；
(3) cerous nitrate and molecular sieve is added in the present invention, and one side porous type molecular sieve has absorption to the vapor in air
Effect, Water Molecular Adsorption is inside filtering material, it is therefore prevented that on the other hand deliquescence and destruction to filtering material can adsorb sky
Flue gas in gas, some pernicious gases form the gas harmless to air, improve air filtration through Ce elements catalysis oxidation
Efficiency；
(4) present invention introduces 2- methyl-2-propanols and ramee to carry out toughening processing, and 2- methyl-2-propanol can hinder micro-
The chemical steric hindrance between Hydrogenbond, increase microfibre between fine fibre facilitates so that microfibre be made to be in monofilament state
The formation of the arachnoid network of filtering material can also change the structure and crystallization kinetics of ice crystal, so as to avoid stratiform ice crystal
Destruction to arachnoid network makes the microstructure of filtering material be changed into isotropic spider from anisotropic layer structure
Reticular structure increases the holding of filtering material structure, forms high-intensitive network structure, filtering material is protected for a long time
Hold efficient filter effect.
Specific embodiment
Filtering material base-material the preparation method comprises the following steps:
(1) it takes lithium chloride 1 ~ 4:8 in mass ratio ~ 10 that n,N-Dimethylformamide is added, keeps humidity 40 ~ 50%, in
25 ~ 30 DEG C are stirred 20 ~ 30min, add 4 ~ 6 times of lithium chloride quality of polyacrylonitrile, and 10 ~ 12h of magnetic agitation must be stirred
Mixture；
(2) it takes carbon nanotube that n,N-Dimethylformamide is added by 1 ~ 4:8 of quality ~ 10, stirs 20 ~ 30min, obtain mixture, take
The sulfuric acid that concentration is 1mol/L is added in nitric acid 3 ~ 5:1 in mass ratio ~ 3 that concentration is 3mol/L, is stirred 15 ~ 20min, obtains mixed
Close liquid, take mixture 3 ~ 6:30 in mass ratio ~ 40 that mixed liquor is added, be warming up to 100 ~ 110 DEG C be stirred 18 ~ for 24 hours, filter,
Suction filtration slag is taken to wash through deionized water, rotary evaporation is dry, obtains dried object；
(3) it is mixed that dried object, polyphenylene sulfide fibre is added in the stirring mixture 5 ~ 8:1 in mass ratio for taking step (1) spare ~ 3:4 ~ 7
Close, obtain mixture a, take mixture a 2 ~ 5:10 in mass ratio ~ 20 be added n,N-Dimethylformamide, 20 ~ 30min of ultrasonic disperse,
10 ~ 12h is stirred in 25 ~ 30 DEG C to get filtering material base-material.
Moisture absorption catalytic activity agent the preparation method comprises the following steps:
It takes cerous nitrate 2 ~ 5:10 in mass ratio ~ 20 that deionized water is added, adjusts pH to 10 ~ 11 through ammonium hydroxide, obtain soak, take
Soak is added in NaY molecular sieve 7 ~ 9:90 in mass ratio ~ 100, in 70 ~ 75 DEG C of 40 ~ 60min of immersions, filters, take suction filtration slag in
500 ~ 550 DEG C of 3 ~ 5h of roasting, are cooled to room temperature, and grind 300 ~ 400 meshes, collect sieving particle to get moisture absorption catalysis
Activating agent.
Fire-retardant activating agent the preparation method comprises the following steps:
S1. it takes hydroxyethyl methacrylate 10 ~ 20:1 in mass ratio ~ 4 that hydroquinone is added, 20 ~ 30min is stirred, in 2 ~ 5
DEG C be added hydroxyethyl methacrylate quality 40 ~ 50% phosphorus pentoxide, be warming up to 70 ~ 80 DEG C of 2 ~ 5h of heat preservation, obtain mixture a,
It takes mixture a 10 ~ 20:3 in mass ratio ~ 7 that hexadecanol is added, is stirred 1 ~ 4h in 65 ~ 70 DEG C, mixture a must be stirred, taken
Stirring mixture a 3 ~ 9:10 in mass ratio ~ 20 is added water and is cooled to room temperature in 75 ~ 80 DEG C of 1 ~ 3h of heat preservation, obtains cooled material；
S2. the lauryl sodium sulfate 2 ~ 5:1 in mass ratio ~ addition of 4:10 ~ 15 alkyl phenol polyoxyethylene ether, water is taken to be stirred 30
~ 40min obtains mixture a, according to the mass fraction, takes 2 ~ 5 parts of methacrylates, 1 ~ 4 part of butyl acrylate, 8 ~ 10 parts of propylene
Acid, 2 ~ 6 parts of hydroxy-ethyl acrylates, 5 ~ 9 parts of cooled materials, 40 ~ 50 parts of mixture a, are stirred 10 in 25 ~ 30 DEG C, 5000r/min
~ 20min must stir mixture b, be warming up to 75 ~ 80 DEG C, and the ammonium persulfate of stirring mixture b mass 3 ~ 6% is added, is stirred
2 ~ 4h is cooled to room temperature then at 80 ~ 85 DEG C of 1 ~ 3h of heat preservation to get fire-retardant activating agent.
Fire-retardant assistance agent are as follows: take Guanidine Sulfamate 99 2 ~ 5:1 in mass ratio ~ 3 be added phosphoguanidine mixing to get.
A kind of preparation method of high-strength anti-flaming air filting material, includes the following steps:
A. it takes 2- methyl-2-propanol 1 ~ 3:7 in mass ratio ~ 9 that water is added, is stirred 20 ~ 30min, adds 2- methyl -2- third
The ramee that 3 ~ 6 times of alcohol quality keeps the temperature 48 ~ 72h in -60 ~ -50 DEG C, 10Pa, obtains mixture b, according to the mass fraction, take 20 ~
30 parts of mixture b, 40 ~ 50 parts of filtering material base-materials, 2 ~ 5 parts of moisture absorption catalytic activity agent, 1 ~ 4 part of neopelex, 5 ~ 9
Part furfuryl alcohol resin, 40 ~ 50 parts of water mixing, are stirred 1 ~ 3h in 5000 ~ 10000r/min, obtain spinning solution；
B. it takes spinning solution to carry out electrostatic spinning, is cut into basis material, take fire-retardant activating agent 3 ~ 8:1 in mass ratio ~ 3 to be added fire-retardant
Agent mixing is assisted, mixed liquor a is obtained, basis material 1 ~ 4:10 ~ 20 in mass ratio is taken to be dipped in mixed liquor a, is kept the temperature in 50 ~ 60 DEG C
1 ~ 3h takes out basis material after impregnating, dry to get high-strength anti-flaming air filting material.
Embodiment 1
Filtering material base-material the preparation method comprises the following steps:
(1) it takes lithium chloride 1:8 in mass ratio that n,N-Dimethylformamide is added, keeps humidity 40%, stirred in 25 DEG C
20min is mixed, adds 4 times of lithium chloride quality of polyacrylonitrile, magnetic agitation 10h obtains stirring mixture；
(2) it takes carbon nanotube that n,N-Dimethylformamide is added by quality 1:8, stirs 20min, obtain mixture, take the concentration to be
The sulfuric acid that concentration is 1mol/L is added in the nitric acid of 3mol/L 3:1 in mass ratio, is stirred 15min, obtains mixed liquor, takes mixture
Mixed liquor is added in 3:30 in mass ratio, is warming up to 100 DEG C and is stirred 18h, filters, and takes suction filtration slag to wash through deionized water, revolves
Turn evaporation, it is dry, obtain dried object；
(3) dried object, polyphenylene sulfide fibre mixing is added in the stirring mixture 5:1:4 in mass ratio for taking step (1) spare, obtains mixed
Object a is closed, takes mixture a 2:10 in mass ratio that n,N-Dimethylformamide is added, ultrasonic disperse 20min is stirred in 25 DEG C
10h is to get filtering material base-material.
Moisture absorption catalytic activity agent the preparation method comprises the following steps:
It takes cerous nitrate 2:10 in mass ratio that deionized water is added, adjusts pH to 10 through ammonium hydroxide, obtain soak, take NaY molecular sieve
Soak is added in 7:90 in mass ratio, in 70 DEG C of immersion 40min, filters, and takes and filters slag in 500 DEG C of roasting 3h, is cooled to room temperature,
300 meshes were ground, collect sieving particle to get moisture absorption catalytic activity agent.
Fire-retardant activating agent the preparation method comprises the following steps:
S1. it takes hydroxyethyl methacrylate 10:1 in mass ratio that hydroquinone is added, 20min is stirred, in 2 DEG C of addition methyl
The phosphorus pentoxide of hydroxy-ethyl acrylate quality 40% is warming up to 70 DEG C of heat preservation 2h, obtains mixture a, take mixture a in mass ratio
Hexadecanol is added in 10:3, is stirred 1h in 65 DEG C, must stir mixture a, and stirring mixture a 3:10 in mass ratio is taken to be added
Water is cooled to room temperature in 75 DEG C of heat preservation 1h, obtains cooled material；
S2. it takes lauryl sodium sulfate 2:1:10 in mass ratio addition alkyl phenol polyoxyethylene ether, water to be stirred 30min, obtains
Mixture a takes 2 parts of methacrylates, 1 part of butyl acrylate, 8 parts of acrylic acid, 2 parts of acrylic acid hydroxyl second according to the mass fraction
Ester, 5 parts of cooled materials, 40 parts of mixture a, are stirred 10min in 25 DEG C, 5000r/min, must stir mixture b, be warming up to 75
DEG C, be added stirring mixture b mass 3% ammonium persulfate, be stirred 2h, then at 80 DEG C of heat preservation 1h, be cooled to room temperature to get
Fire-retardant activating agent.
Fire-retardant assistance agent are as follows: take Guanidine Sulfamate 99 2:1 in mass ratio be added phosphoguanidine mixing to get.
A kind of preparation method of high-strength anti-flaming air filting material, includes the following steps:
A. it takes 2- methyl-2-propanol 1:7 in mass ratio that water is added, is stirred 20min, adds 2- methyl-2-propanol quality 3
~ 6 times of ramee keeps the temperature 48h in -60 DEG C, 10Pa, obtains mixture b, according to the mass fraction, take 20 parts of mixture b, 40 parts
Filtering material base-material, 2 parts of moisture absorption catalytic activity agent, 1 part of neopelex, 5 parts of furfuryl alcohol resins, 40 parts of water mixing, in
5000r/min is stirred 1h, obtains spinning solution；
B. it takes spinning solution to carry out electrostatic spinning, is cut into basis material, take fire-retardant activating agent 3:1 in mass ratio that fire-retardant assistance is added
Agent mixing, obtains mixed liquor a, basis material 1:10 in mass ratio is taken to be dipped in mixed liquor a, in 50 DEG C of heat preservation 1h, takes out and impregnates
Basis material afterwards, it is dry to get high-strength anti-flaming air filting material.
Embodiment 2
Filtering material base-material the preparation method comprises the following steps:
(1) it takes lithium chloride 3:9 in mass ratio that n,N-Dimethylformamide is added, keeps humidity 45%, stirred in 28 DEG C
25min is mixed, adds 5 times of lithium chloride quality of polyacrylonitrile, magnetic agitation 11h obtains stirring mixture；
(2) it takes carbon nanotube that n,N-Dimethylformamide is added by quality 3:9, stirs 25min, obtain mixture, take the concentration to be
The sulfuric acid that concentration is 1mol/L is added in the nitric acid of 3mol/L 4:2 in mass ratio, is stirred 18min, obtains mixed liquor, takes mixture
Mixed liquor is added in 5:35 in mass ratio, is warming up to 105 DEG C and is stirred 20h, filters, and takes suction filtration slag to wash through deionized water, revolves
Turn evaporation, it is dry, obtain dried object；
(3) dried object, polyphenylene sulfide fibre mixing is added in the stirring mixture 6:2:5 in mass ratio for taking step (1) spare, obtains mixed
Object a is closed, takes mixture a 3:15 in mass ratio that n,N-Dimethylformamide is added, ultrasonic disperse 25min is stirred in 28 DEG C
11h is to get filtering material base-material.
Moisture absorption catalytic activity agent the preparation method comprises the following steps:
It takes cerous nitrate 3:15 in mass ratio that deionized water is added, adjusts pH to 10.5 through ammonium hydroxide, obtain soak, take NaY molecule
It sieves 8:95 in mass ratio and soak is added, in 73 DEG C of immersion 45min, filter, take and filter slag in 530 DEG C of roasting 4h, be cooled to room
Temperature ground 350 meshes, collected sieving particle to get moisture absorption catalytic activity agent.
Fire-retardant activating agent the preparation method comprises the following steps:
S1. it takes hydroxyethyl methacrylate 15:3 in mass ratio that hydroquinone is added, 25min is stirred, in 4 DEG C of addition methyl
The phosphorus pentoxide of hydroxy-ethyl acrylate quality 45% is warming up to 75 DEG C of heat preservation 3h, obtains mixture a, take mixture a in mass ratio
Hexadecanol is added in 15:5, is stirred 3h in 68 DEG C, must stir mixture a, and stirring mixture a 6:15 in mass ratio is taken to be added
Water is cooled to room temperature in 78 DEG C of heat preservation 2h, obtains cooled material；
S2. it takes lauryl sodium sulfate 3:3:13 in mass ratio addition alkyl phenol polyoxyethylene ether, water to be stirred 35min, obtains
Mixture a takes 3 parts of methacrylates, 3 parts of butyl acrylates, 9 parts of acrylic acid, 5 parts of acrylic acid hydroxyl second according to the mass fraction
Ester, 8 parts of cooled materials, 45 parts of mixture a, are stirred 15min in 28 DEG C, 5000r/min, must stir mixture b, be warming up to 78
DEG C, be added stirring mixture b mass 5% ammonium persulfate, be stirred 3h, then at 83 DEG C of heat preservation 2h, be cooled to room temperature to get
Fire-retardant activating agent.
Fire-retardant assistance agent are as follows: take Guanidine Sulfamate 99 4:2 in mass ratio be added phosphoguanidine mixing to get.
A kind of preparation method of high-strength anti-flaming air filting material, includes the following steps:
A. it takes 2- methyl-2-propanol 2:8 in mass ratio that water is added, is stirred 25min, adds 2- methyl-2-propanol quality 5
Ramee again keeps the temperature 56h in -55 DEG C, 10Pa, obtains mixture b, according to the mass fraction, take 25 parts of mixture b, 45 parts of mistakes
Filter material material base-material, 3 parts of moisture absorption catalytic activity agent, 3 parts of neopelexes, 7 parts of furfuryl alcohol resins, 45 parts of water mixing, in
8000r/min is stirred 2h, obtains spinning solution；
B. it takes spinning solution to carry out electrostatic spinning, is cut into basis material, take fire-retardant activating agent 6:2 in mass ratio that fire-retardant assistance is added
Agent mixing, obtains mixed liquor a, basis material 3:15 in mass ratio is taken to be dipped in mixed liquor a, in 55 DEG C of heat preservation 2h, takes out and impregnates
Basis material afterwards, it is dry to get high-strength anti-flaming air filting material.
Embodiment 3
Filtering material base-material the preparation method comprises the following steps:
(1) it takes lithium chloride 4:10 in mass ratio that n,N-Dimethylformamide is added, keeps humidity 50%, stirred in 30 DEG C
Mixing 30min is mixed, adds 6 times of lithium chloride quality of polyacrylonitrile, magnetic agitation 12h obtains stirring mixture；
(2) it takes carbon nanotube that n,N-Dimethylformamide is added by quality 4:10, stirs 30min, obtain mixture, take the concentration to be
The sulfuric acid that concentration is 1mol/L is added in the nitric acid of 3mol/L 5:3 in mass ratio, is stirred 20min, obtains mixed liquor, takes mixture
Mixed liquor is added in 6:40 in mass ratio, is warming up to 110 DEG C and is stirred for 24 hours, filter, takes suction filtration slag to wash through deionized water, revolve
Turn evaporation, it is dry, obtain dried object；
(3) dried object, polyphenylene sulfide fibre mixing is added in the stirring mixture 8:3:7 in mass ratio for taking step (1) spare, obtains mixed
Object a is closed, takes mixture a 5:20 in mass ratio that n,N-Dimethylformamide is added, ultrasonic disperse 30min is stirred in 30 DEG C
12h is to get filtering material base-material.
Moisture absorption catalytic activity agent the preparation method comprises the following steps:
It takes cerous nitrate 5:20 in mass ratio that deionized water is added, adjusts pH to 11 through ammonium hydroxide, obtain soak, take NaY molecular sieve
Soak is added in 9:100 in mass ratio, in 75 DEG C of immersion 60min, filters, and takes and filters slag in 550 DEG C of roasting 5h, is cooled to room
Temperature ground 400 meshes, collected sieving particle to get moisture absorption catalytic activity agent.
Fire-retardant activating agent the preparation method comprises the following steps:
S1. it takes hydroxyethyl methacrylate 20:4 in mass ratio that hydroquinone is added, 30min is stirred, in 5 DEG C of addition methyl
The phosphorus pentoxide of hydroxy-ethyl acrylate quality 50% is warming up to 80 DEG C of heat preservation 5h, obtains mixture a, take mixture a in mass ratio
Hexadecanol is added in 20:7, is stirred 4h in 70 DEG C, must stir mixture a, and stirring mixture a 9:20 in mass ratio is taken to be added
Water is cooled to room temperature in 80 DEG C of heat preservation 3h, obtains cooled material；
S2. it takes lauryl sodium sulfate 5:4:15 in mass ratio addition alkyl phenol polyoxyethylene ether, water to be stirred 40min, obtains
Mixture a takes 5 parts of methacrylates, 4 parts of butyl acrylates, 10 parts of acrylic acid, 6 parts of acrylic acid hydroxyl second according to the mass fraction
Ester, 9 parts of cooled materials, 50 parts of mixture a, are stirred 20min in 30 DEG C, 5000r/min, must stir mixture b, be warming up to 80
DEG C, be added stirring mixture b mass 6% ammonium persulfate, be stirred 4h, then at 85 DEG C of heat preservation 3h, be cooled to room temperature to get
Fire-retardant activating agent.
Fire-retardant assistance agent are as follows: take Guanidine Sulfamate 99 5:3 in mass ratio be added phosphoguanidine mixing to get.
A kind of preparation method of high-strength anti-flaming air filting material, includes the following steps:
A. it takes 2- methyl-2-propanol 3:9 in mass ratio that water is added, is stirred 30min, adds 2- methyl-2-propanol quality 6
Ramee again keeps the temperature 72h in -50 DEG C, 10Pa, obtains mixture b, according to the mass fraction, take 30 parts of mixture b, 50 parts of mistakes
Filter material material base-material, 5 parts of moisture absorption catalytic activity agent, 4 parts of neopelexes, 9 parts of furfuryl alcohol resins, 50 parts of water mixing, in
10000r/min is stirred 3h, obtains spinning solution；
B. it takes spinning solution to carry out electrostatic spinning, is cut into basis material, take fire-retardant activating agent 8:3 in mass ratio that fire-retardant assistance is added
Agent mixing, obtains mixed liquor a, basis material 4:20 in mass ratio is taken to be dipped in mixed liquor a, in 60 DEG C of heat preservation 3h, takes out and impregnates
Basis material afterwards, it is dry to get high-strength anti-flaming air filting material.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking filtering material base-material.
Comparative example 2: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking fire-retardant activating agent.
Comparative example 3: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking fire-retardant assistance agent.
Comparative example 4: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking moisture absorption catalytic activity agent.
Comparative example 5: the high-strength anti-flaming air filting material of Shanghai City company production.
By high-strength anti-flaming air filting material obtained by embodiment and comparative example according to GB/T454-2002, GB/T2679.
3-1996, GB/T458-2002 standard are tested, and test result is as shown in table 1.
Table 1:
In conclusion air filting material prepared by the present invention, physical property is good, and filter efficiency is high, and good flame resistance is
The preparation method of a kind of safety and efficient air filter paper, is worthy to be popularized and uses.
Claims (7)
1. a kind of high-strength anti-flaming air filting material, which is characterized in that including filtering material base-material, the agent of moisture absorption catalytic activity,
Fire-retardant activating agent, fire-retardant assistance agent；
The preparation method of the filtering material base-material, includes the following steps:
(1) it takes lithium chloride 1 ~ 4:8 in mass ratio ~ 10 that n,N-Dimethylformamide is added, keeps humidity 40 ~ 50%, in
25 ~ 30 DEG C are stirred, and add 4 ~ 6 times of lithium chloride quality of polyacrylonitrile magnetic agitation, obtain stirring mixture；
(2) it takes carbon nanotube that n,N-Dimethylformamide stirring is added by 1 ~ 4:8 of quality ~ 10, obtains mixture, take nitric acid by quality
Sulfuric acid is added than 3 ~ 5:1 ~ 3 to be stirred, obtains mixed liquor, takes mixture 3 ~ 6:30 in mass ratio ~ 40 that mixed liquor is added, is warming up to
100 ~ 110 DEG C are stirred, and filter, and suction filtration slag is taken to wash through deionized water, and rotary evaporation is dry, obtain dried object；
(3) it is mixed that dried object, polyphenylene sulfide fibre is added in the stirring mixture 5 ~ 8:1 in mass ratio for taking step (1) spare ~ 3:4 ~ 7
It closes, obtains mixture a, take mixture a 2 ~ 5:10 in mass ratio ~ 20 that n,N-Dimethylformamide, ultrasonic disperse, in 25 ~ 30 is added
It DEG C is stirred to get filtering material base-material.
2. high-strength anti-flaming air filting material according to claim 1, which is characterized in that the moisture absorption catalytic activity agent
The preparation method comprises the following steps:
It takes cerous nitrate 2 ~ 5:10 in mass ratio ~ 20 that deionized water is added, adjusts pH to 10 ~ 11 through ammonium hydroxide, obtain soak, take
Soak is added in NaY molecular sieve 7 ~ 9:90 in mass ratio ~ 100, impregnates in 70 ~ 75 DEG C, filters, and takes and filters slag in 500 ~ 550 DEG C
3 ~ 5h is roasted, is cooled to room temperature, 300 ~ 400 meshes were ground, collects sieving particle to get moisture absorption catalytic activity agent.
3. high-strength anti-flaming air filting material according to claim 1, which is characterized in that the system of the fire-retardant activating agent
Preparation Method are as follows:
S1. it takes hydroxyethyl methacrylate 10 ~ 20:1 in mass ratio ~ 4 that hydroquinone is added to be stirred, in 2 ~ 5 DEG C of addition first
The phosphorus pentoxide of base hydroxy-ethyl acrylate quality 40 ~ 50% is warming up to 70 ~ 80 DEG C of heat preservations, obtains mixture a, take mixture a by
Hexadecanol is added in 10 ~ 20:3 of mass ratio ~ 7, is stirred in 65 ~ 70 DEG C, must stir mixture a, takes stirring mixture a by matter
Water is added than 3 ~ 9:10 ~ 20 in amount, keeps the temperature in 75 ~ 80 DEG C, is cooled to room temperature, obtains cooled material；
S2. the lauryl sodium sulfate 2 ~ 5:1 in mass ratio ~ addition of 4:10 ~ 15 alkyl phenol polyoxyethylene ether, water is taken to be stirred,
It obtains mixture a and takes 2 ~ 5 parts of methacrylates, 1 ~ 4 part of butyl acrylate, 8 ~ 10 parts of acrylic acid, 2 ~ 6 parts according to the mass fraction
Hydroxy-ethyl acrylate, 5 ~ 9 parts of cooled materials, 40 ~ 50 parts of mixture a are stirred, and must be stirred mixture b, are warming up to 75 ~ 80 DEG C,
The ammonium persulfate that stirring mixture b mass 3 ~ 6% is added is stirred, and is kept the temperature, is cooled to room temperature to get fire-retardant then at 80 ~ 85 DEG C
Activating agent.
4. high-strength anti-flaming air filting material according to claim 3, which is characterized in that stirred in the step S2 mixed
That closes object b is stirred condition are as follows: is stirred 10 ~ 20min in 25 ~ 30 DEG C, 5000r/min.
5. high-strength anti-flaming air filting material according to claim 1, which is characterized in that the fire-retardant assistance agent are as follows:
Take Guanidine Sulfamate 99 2 ~ 5:1 in mass ratio ~ 3 be added phosphoguanidine mixing to get.
6. a kind of preparation method of the high-strength anti-flaming air filting material as described in claim 1 ~ 5 any one, feature
It is, which includes the following steps:
A. it takes 2- methyl-2-propanol 1 ~ 3:7 in mass ratio ~ 9 that water is added, is stirred 20 ~ 30min, adds 2- methyl -2- third
The ramee that 3 ~ 6 times of alcohol quality keeps the temperature 48 ~ 72h in -60 ~ -50 DEG C, 10Pa, obtains mixture b, according to the mass fraction, take 20 ~
30 parts of mixture b, 40 ~ 50 parts of filtering material base-materials, 2 ~ 5 parts of moisture absorption catalytic activity agent, 1 ~ 4 part of neopelex, 5 ~ 9
Part furfuryl alcohol resin, 40 ~ 50 parts of water are stirred, and obtain spinning solution；
B. it takes spinning solution to carry out electrostatic spinning, is cut into basis material, take fire-retardant activating agent 3 ~ 8:1 in mass ratio ~ 3 to be added fire-retardant
Agent mixing is assisted, mixed liquor a is obtained, basis material 1 ~ 4:10 ~ 20 in mass ratio is taken to be dipped in mixed liquor a, is kept the temperature in 50 ~ 60 DEG C
1 ~ 3h takes out basis material after impregnating, dry to get high-strength anti-flaming air filting material.
7. the preparation method of high-strength anti-flaming air filting material according to claim 6, which is characterized in that the step
Spinning solution is stirred condition in A are as follows: is stirred 1 ~ 3h in 5000 ~ 10000r/min.
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| CN111013255A (en) * | 2019-12-31 | 2020-04-17 | 江南大学 | A kind of preparation method of micro/nanofiber aerogel composite filter material |
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