CN108671746A - A kind of compound air purification filter core and preparation method thereof - Google Patents
A kind of compound air purification filter core and preparation method thereof Download PDFInfo
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- CN108671746A CN108671746A CN201810423144.6A CN201810423144A CN108671746A CN 108671746 A CN108671746 A CN 108671746A CN 201810423144 A CN201810423144 A CN 201810423144A CN 108671746 A CN108671746 A CN 108671746A
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- filter core
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- purification filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/20—Organic adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The present invention relates to technical field of air purification, and in particular to a kind of compound air purification filter core and preparation method thereof, the preparation method of the compound air purification filter core includes the following steps：(1) plant fiber is impregnated in alkaline solution and obtains porous plant fiber；(2) in a solvent after mixing by porous plant fiber, diatomite, organic titanate and silane coupling agent, thermal response is carried out, modified porous plant fiber is obtained；(3) modified porous plant fiber, phenolic resin, foaming agent and graphene oxide are stirred into 2~4h in a solvent, curing agent is then added, stirred evenly, be purified coating；(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.The compound air purification filter core of the present invention can be adsorbed and degraded to indoor pernicious gas and dust, and indoor air can persistently, be thoroughly purified.
Description
Technical field
The present invention relates to technical field of air purification, and in particular to a kind of compound air purification filter core and preparation method thereof.
Background technology
The quality of room air is an important factor for influencing health and thought mood.Currently, the sky used both at home and abroad
Gas purifying method mainly has air suction method, covering method, oxidizing process etc..Using suction method, heavy mechanical equipment is needed, is being occupied
The environment such as room, compartment, lavatory are difficult to carry out；Covering method is but cannot to eliminate smell substance to spray aromatic substance covering smell
Injury to human body；Oxidizing process is to generate negative oxygen ion using electrolysis principle to carry out disinfection purification to air, but effect is not
Ideal, and higher price.Air purifying filter core is to utilize solid absorbent, strong oxidizer and aromatic substance, to room air
Comprehensive purifying processing is carried out, peculiar smell can be thoroughly eliminated, purifies air.Common air purifying filter core can only be to the powder in air
Dirt has suction-operated, and cannot play the role of purifying organic gas.
Invention content
It is of the existing technology the purpose of the invention is to overcome the problems, such as, a kind of compound air purification filter core is provided, it
Indoor pernicious gas can be adsorbed and be degraded, can persistently, thoroughly purify indoor air.
To achieve the goals above, the present invention provides a kind of preparation method of compound air purification filter core, including following step
Suddenly：
(1) plant fiber impregnates to 5 in alkaline solution~for 24 hours, obtain porous plant fiber；
(2) in a solvent after mixing by porous plant fiber, diatomite, organic titanate and silane coupling agent, surpass
15~30min of sound, then 3~6h of sealing reaction at 80~120 DEG C, obtains modified porous plant fiber；
(3) modified porous plant fiber, phenolic resin, foaming agent and graphene oxide are stirred into 2~4h in a solvent, so
After curing agent is added, stir evenly, be purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
The present invention also provides a kind of compound air purification filter cores, are prepared according to above-mentioned preparation method.
Through the above technical solutions, the present invention mixes porous plant fiber, diatomite and organic titanate, silicon can be made
Diatomaceous earth enters with organic titanate in the hole of porous fibre, then carries out closing thermal response, so that organic titanate is decomposed and generates
Nano-titanium dioxide is simultaneously reacted with diatomite, and the nano-silica with catalytic performance is in situ generated in the hole of plant fiber
Change titanium modification infusorial earth, i.e., modified porous plant fiber, modified porous fiber contains abundant pore structure, can adsorb air
In pernicious gas, and situ catalytic degrade, have the function that purify air.
Modified porous fiber, graphene and foaming agent are reacted in phenolic resin, it on the one hand can be with graphene to changing
Property porous fibre carry out further it is compound, improve the effect of its catalytic degradation；In addition, foaming agent is added in phenolic resin, so
After be heated at high temperature, porous structure can be formed in phenolic resin, improve the specific surface area of phenolic resin, to improve compound air
The absorption property of gas purifying filter element.
Specific implementation mode
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention also provides a kind of preparation methods of the compound air purification filter core, include the following steps：
(1) plant fiber impregnates to 5 in alkaline solution~for 24 hours, obtain porous plant fiber；
(2) in a solvent after mixing by porous plant fiber, diatomite, organic titanate and silane coupling agent, surpass
15~30min of sound, then 3~6h of sealing reaction at 80~120 DEG C, obtains modified porous plant fiber；
(3) modified porous plant fiber, phenolic resin, foaming agent and graphene oxide are stirred into 2~4h in a solvent, so
Afterwards at 150~250 DEG C dry 1~3h to get to compound air purification filter core.
Plant fiber is impregnated in alkaline solution in the present invention, the colloid in plant fiber can be removed, to be formed
Porous plant fiber, the present invention do not have the type of plant fiber special requirement, such as the plant fiber is selected from stalk fibre
Dimension, ramee, hemp, flax fiber, cotton fiber, bamboo fibre, sisal fiber, cocoanut fiber, abaca fibre and Huang
At least one of flaxen fiber.
The present invention mixes porous plant fiber, diatomite and organic titanate, can make diatomite and organic titanate
Into in the hole of porous fibre, then carry out closing thermal response, make organic titanate decompose generate nano-titanium dioxide and with
Diatomite reacts, and the nano-titanium dioxide modified diatomite with catalytic performance is in situ generated in the hole of plant fiber；
Under optimum condition, the organic titanate be selected from tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate,
At least one of tetra-n-butyl titanate.It is further preferred that the silane coupling agent is selected from Silane coupling agent KH550, silane
Coupling agent KH560, silane coupling agent KH570, silane coupling agent KH580, silane coupling agent KH590, silane coupling agent KH792,
At least one of silane coupling agent KBM602, silane coupling A 151 and silane coupling A 171.
In the present invention, foaming agent is added in phenolic resin, is then heated at high temperature, and porous structure can be formed in gel,
The specific surface area for improving phenolic resin, to improve the absorption property of compound air purification filter core.Under optimum condition, the hair
Infusion is selected from least one of azo-compound, sulfonyl hydrazines compound, nitroso compound and carbonate, such as can be
4,4- oxobenzenesulfonyl hydrazide, azodicarbonamide, N, at least one in N '-dinitrosopentamethlyene tetramines and sodium carbonate
Kind.
In order to remove the impurity in diatomite, diatomaceous porosity is improved, to improve absorption of the diatomite to air
Rate, the present invention are also modified processing to diatomite, and under optimum condition, the diatomaceous modified technique is：Diatomite is existed
2~5h is calcined at 250~350 DEG C.
It is further preferred that the curing agent is selected from ethylenediamine, hexamethylene diamine, methyl cyclohexyl diamine, Putriscine, 1,5-
Pentanediamine, 2- methyl-1s, 5- pentanediamines, 2- butyl -2- ethyl -1,5- pentanediamines, 1,6- hexamethylene diamines, 2,2,4- trimethyls oneself two
Amine, 2,4,4- trimethylhexane diamines, 1,8- octamethylenediamines, 2- methyl-1s, 8- octamethylenediamines, 1,9-nonamethylene diamine, 1,10- decamethylene diamines, 1,
11- hendecanes diamines, 1,12- dodecamethylene diamines, 1,13- tridecane diamines, 1,14- tetradecanes diamines, 1,15- pentadecanes two
In amine, 2- methyl -2,4-PD, 1,16- hexadecanes diamines and 1,18-1,14- octadecamethylene diamines, dimethythiotoluene diamine
At least one.
It is further preferred that the solvent is selected from acetone, n,N-Dimethylformamide, N-Methyl pyrrolidone, N, N- bis-
Methylacetamide, N, N- diethylformamides, ethyl alcohol, acetic acid, ethyl acetate, chloroform, tetrahydrofuran, petroleum ether, dimethyl are sub-
At least one of sulfone and water.
The present invention also provides a kind of compound air purification filter cores, are prepared according to above-mentioned preparation method.
The present invention will be described in detail by way of examples below.
Embodiment 1
A kind of compound air purification filter core, is made of the substance of following parts by weight：(grain size is 10 parts by weight of diatomite
200nm), 40 parts by weight of ramee, 72 parts by weight of sodium hydroxide solution (2M), 6 parts by weight of tetramethoxy titanate ester, silane coupling agent
KH5603 parts by weight, 6 parts by weight of graphene oxide, 2 parts by weight of 4,4- oxobenzenesulfonyl hydrazide, 120 parts by weight of phenolic resin, 2,
1 parts by weight of 4,4- trimethylhexane diamines, 50 parts by weight of N,N-dimethylformamide.
(1) ramee in sodium hydroxide solution (2M) is impregnated into 12h, obtains porous ramee；
Diatomite is being calcined into 3h at 300 DEG C, is obtaining modification infusorial earth；
(2) by porous ramee, modification infusorial earth (grain size 200nm), tetramethoxy titanate ester and silane coupling agent KH560
In n,N-Dimethylformamide after mixing, ultrasonic 20min, then the sealing reaction 4h at 100 DEG C, obtains modified porous
Ramee；
(3) by modified porous ramee, phenolic resin, 4,4- oxobenzenesulfonyl hydrazide and graphene oxide in N, N- bis-
3h is stirred in methylformamide, and 2,4,4- trimethylhexane diamines are then added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Embodiment 2
A kind of compound air purification filter core, is made of the substance of following parts by weight：(grain size is 12 parts by weight of diatomite
500nm), 35 parts by weight of cotton fiber, 75 parts by weight of sodium hydroxide solution (2M), 5 parts by weight of tetrabutyl titanate, silane coupled
Agent KH5503 parts by weight, 5 parts by weight of graphene oxide, N, 3 parts by weight of N '-dinitrosopentamethlyene tetramines, phenolic resin 120
Parts by weight, 2 parts by weight of 2,4,4- trimethylhexane diamines, 50 parts by weight of water.
(1) cotton fiber in sodium hydroxide solution (2M) is impregnated into 12h, obtains porous cotton fiber；
Diatomite is being calcined into 3.5h at 280 DEG C, is obtaining modification infusorial earth；
(2) porous cotton fiber, diatomite (grain size 500nm), tetrabutyl titanate and Silane coupling agent KH550 are existed
In water after mixing, ultrasonic 25min, then the sealing reaction 5h at 100 DEG C, obtains modified porous cotton fiber；
(3) by modified porous cotton fiber, phenolic resin, N, N '-dinitrosopentamethlyene tetramines and graphene oxide
2.5h is stirred in water, and 2,4,4- trimethylhexane diamines are then added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Embodiment 3
A kind of compound air purification filter core, is made of the substance of following parts by weight：(grain size is 6 parts by weight of diatomite
500nm), 45 parts by weight of tossa, 60 parts by weight of sodium hydroxide solution (2M), 10 parts by weight of tetra-n-butyl titanate, silane are even
Join agent KH5704 parts by weight, 8 parts by weight of graphene oxide, 4 parts by weight of azodicarbonamide, 100 parts by weight of phenolic resin, 2,4,
3 parts by weight of 4- trimethylhexane diamines, 50 parts by weight of N-Methyl pyrrolidone.
(1) tossa in sodium hydroxide solution (2M) is impregnated into 10h, obtains porous tossa；
Diatomite is being calcined into 5h at 250 DEG C, is obtaining modification infusorial earth；
(2) porous tossa, diatomite (grain size 500nm), silane coupling agent KH570 and tetra-n-butyl titanate are existed
In N-Methyl pyrrolidone after mixing, ultrasonic 20min, then the sealing reaction 4h at 100 DEG C, obtains modified porous jute
Fiber；
(3) by modified porous tossa, phenolic resin, azodicarbonamide and graphene oxide in N- crassitudes
3.5h is stirred in ketone, and 2,4,4- trimethylhexane diamines are then added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Embodiment 4
A kind of compound air purification filter core, is made of the substance of following parts by weight：(grain size is 15 parts by weight of diatomite
600nm), 30 parts by weight of cocoanut fiber, 80 parts by weight of sodium hydroxide solution (2M), 3 parts by weight of sour four N-butyl, silane coupling agent
A1513.2 parts by weight, 7 parts by weight of graphene oxide, 5 parts by weight of sodium carbonate, 80 parts by weight of phenolic resin, 2,4,4- trimethyls oneself
3 parts by weight of diamines, 10 parts by weight of ethyl alcohol.
(1) cocoanut fiber in sodium hydroxide solution (2M) is impregnated into 5h, obtains porous cocoanut fiber；
Diatomite is calcined into 2h at 350 DEG C, obtains modification infusorial earth；
(2) by porous cocoanut fiber, diatomite (grain size 600nm), silane coupling A 151 and sour four N-butyls in second
In alcohol after mixing, ultrasonic 30min, then the sealing reaction 3h at 120 DEG C, obtains modified porous cocoanut fiber；
(3) modified porous cocoanut fiber, phenolic resin, sodium carbonate and graphene oxide are stirred into 2h in ethanol, then
2,4,4- trimethylhexane diamines are added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Embodiment 5
A kind of compound air purification filter core, is made of the substance of following parts by weight：(grain size is 5 parts by weight of diatomite
800nm), 50 parts by weight of sisal fiber, 50 parts by weight of sodium hydroxide solution (2M), 12 parts by weight of tetraethyl titanate, silane coupled
Agent KBM6023.5 parts by weight, 6 parts by weight of graphene oxide, 2.3 parts by weight of azodicarbonamide, 150 parts by weight of phenolic resin,
2 parts by weight of 2,4,4- trimethylhexane diamines, 45 parts by weight of water.
(1) sisal fiber is impregnated for 24 hours in sodium hydroxide solution (2M), obtains porous sisal fiber；
(2) porous sisal fiber, diatomite (grain size 800nm), silane coupling agent KBM602 and tetraethyl titanate are existed
In water after mixing, ultrasonic 15min, then the sealing reaction 6h at 80 DEG C, obtains modified porous sisal fiber；
(3) modified porous ramee, phenolic resin, azodicarbonamide and graphene oxide are stirred into 4h in water,
Then 2,4,4- trimethylhexane diamines are added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Comparative example 1
A kind of compound air purification filter core, is made of the substance of following parts by weight：40 parts by weight of ramee, metatitanic acid tetramethyl
6 parts by weight of ester, silane coupling agent KH5603 parts by weight, 6 parts by weight of graphene oxide, 2 parts by weight of 4,4- oxobenzenesulfonyl hydrazide,
120 parts by weight of phenolic resin, 50 parts by weight of N,N-dimethylformamide.
(1) ramee in sodium hydroxide solution (2M) is impregnated into 12h, obtains porous ramee；
(2) by porous ramee, tetramethoxy titanate ester in n,N-Dimethylformamide after mixing, ultrasonic 20min,
Then the sealing reaction 4h at 100 DEG C, obtains modified porous ramee；
(3) by modified porous ramee, phenolic resin, 4,4- oxobenzenesulfonyl hydrazide and graphene oxide in N, N- bis-
3h is stirred in methylformamide, and 2,4,4- trimethylhexane diamines are then added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Comparative example 2
A kind of compound air purification filter core, is made of the substance of following parts by weight：(grain size is 10 parts by weight of diatomite
200nm), 40 parts by weight of ramee, 72 parts by weight of sodium hydroxide solution (2M), 6 parts by weight of tetramethoxy titanate ester, silane coupling agent
KH5603 parts by weight, 2 parts by weight of 4,4- oxobenzenesulfonyl hydrazide, 120 parts by weight of phenolic resin, 50 weight of N,N-dimethylformamide
Measure part.
(1) ramee in sodium hydroxide solution (2M) is impregnated into 12h, obtains porous ramee；
Diatomite is being calcined into 3h at 300 DEG C, is obtaining modification infusorial earth；
(2) by porous ramee, modification infusorial earth (grain size 200nm), tetramethoxy titanate ester and silane coupling agent KH560
In n,N-Dimethylformamide after mixing, ultrasonic 20min, then the sealing reaction 4h at 100 DEG C, obtains modified porous
Ramee；
(3) by modified porous ramee, phenolic resin, 4,4- oxobenzenesulfonyl hydrazide in N,N-dimethylformamide
3h is stirred, 2,4,4- trimethylhexane diamines are then added, stirs evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
Experiment test：
Compound air purification filter core in 1-5 of the embodiment of the present invention and comparative example 1-2 comments the purifying property of pernicious gas
Valence carries out in the straight type polytetrafluoroethylene (PTFE) pipe reactor of Φ 20mm, long 200mm, and polytetrafluoroethyl-ne is added in compound air purification filter core
In alkene pipe reactor, it is -1.0KPa that polytetrafluoroethylene (PTFE) pipe reactor, which is then evacuated to pressure, then to polyfluortetraethylene pipe
Unstripped gas is injected in reactor to normal pressure, tests under different time compound air purification filter core to the purifying rate of pernicious gas；It is former
Material gas group becomes：Concentration of formaldehyde 6ppm, benzene concentration 5ppm, remaining is air.Reaction carries out under 25 DEG C of atmospheric pressure environments, experiment knot
Fruit is as shown in table 1.
Table 1：The purifying property of embodiment 1-5 and the air purifying filter core in comparative example 1-2
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In the skill of the present invention
In art conception range, technical scheme of the present invention can be carried out a variety of simple variants, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to
Protection scope of the present invention.
Claims (9)
1. a kind of preparation method of compound air purification filter core, which is characterized in that include the following steps：
(1) plant fiber impregnates to 5 in alkaline solution~for 24 hours, obtain porous plant fiber；
(2) in a solvent after mixing by porous plant fiber, diatomite, organic titanate and silane coupling agent, ultrasound 15
~30min, then 3~6h of sealing reaction at 80~120 DEG C, obtains modified porous plant fiber；
(3) modified porous plant fiber, phenolic resin, foaming agent and graphene oxide are stirred into 2~4h in a solvent, then added
Enter curing agent, stir evenly, is purified coating；
(4) purification coating is coated in cartridge surface, to get to compound air purification filter core after solidification.
2. the preparation method of compound air purification filter core according to claim 1, which is characterized in that the plant fiber choosing
From stalk fibre, ramee, hemp, flax fiber, cotton fiber, bamboo fibre, sisal fiber, cocoanut fiber, abaca
At least one of fiber and tossa.
3. the preparation method of compound air purification filter core according to claim 2, which is characterized in that the organic titanate
Selected from least one of tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate, tetra-n-butyl titanate.
4. the preparation method of compound air purification filter core according to claim 1, which is characterized in that the silane coupling agent
Selected from Silane coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570, silane coupling agent KH580, silane coupled
In agent KH590, silane coupling agent KH792, silane coupling agent KBM602, silane coupling A 151 and silane coupling A 171 extremely
Few one kind.
5. the preparation method of compound air purification filter core according to claim 1, which is characterized in that the foaming agent is selected from
At least one of azo-compound, sulfonyl hydrazines compound, nitroso compound and carbonate.
6. the preparation method of compound air purification filter core according to claim 1, which is characterized in that the curing agent is selected from
Ethylenediamine, hexamethylene diamine, methyl cyclohexyl diamine, 1,4- butanediamine, 1,5- pentanediamines, 2- methyl-1s, 5- pentanediamines, 2- butyl -2-
Ethyl -1,5- pentanediamines, 1,6- hexamethylene diamines, 2,2,4- trimethylhexane diamines, 2,4,4- trimethylhexane diamines, 1,8- octamethylenediamines,
2- methyl-1s, 8- octamethylenediamines, 1,9-nonamethylene diamine, 1,10- decamethylene diamines, 1,11- hendecanes diamines, 1,12- dodecamethylene diamines, 1,
13- tridecane diamines, 1,14- tetradecanes diamines, 1,15- pentadecanes diamines, 2- methyl -2,4-PD, 1,16- hexadecanes two
At least one of amine and 1,18-1,14- octadecamethylene diamines, dimethythiotoluene diamine.
7. the preparation method of compound air purification filter core according to claim 1, which is characterized in that further include diatomaceous
Modification, the modification process are：2~5h is calcined at 250~350 DEG C.
8. the preparation method of compound air purification filter core according to claim 1, which is characterized in that the solvent is selected from third
Ketone, N,N-dimethylformamide, N-Methyl pyrrolidone, DMAC N,N' dimethyl acetamide, N, N- diethylformamides, ethyl alcohol, vinegar
At least one of acid, ethyl acetate, chloroform, tetrahydrofuran, petroleum ether, dimethyl sulfoxide (DMSO) and water.
9. a kind of compound air purification filter core, which is characterized in that according to the preparation side described in any one of claim 1~8
Method is prepared.
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