CN106310786A - Attapulgite modification based PP (polypropylene) melt-blown filter cartridge and preparation method thereof - Google Patents
Attapulgite modification based PP (polypropylene) melt-blown filter cartridge and preparation method thereof Download PDFInfo
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- CN106310786A CN106310786A CN201610818890.6A CN201610818890A CN106310786A CN 106310786 A CN106310786 A CN 106310786A CN 201610818890 A CN201610818890 A CN 201610818890A CN 106310786 A CN106310786 A CN 106310786A
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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
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
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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
Abstract
The invention discloses an attapulgite modification based PP (polypropylene) melt-blown filter cartridge and a preparation method thereof. The method includes: 1) coating the surface of attapulgite with polymer paint, drying, soaking in dilute sulphuric acid, and filtering to obtain activated attapulgite; 2) simultaneously spraying silver nitrate solution and hydrazine sulfate solution to the surface of attapulgite, and standing to obtain silver modified attapulgite; 3) decocting Chinese herbal medicines in water, and filtering to obtain Chinese herbal medicine extract liquor and a Chinese herbal medicine filter cake; 4) in existence of shielding gas, calcining the silver modified attapulgite, impregnating calcination products in the Chinese herbal medicine extract liquor, and filtering to obtain Chinese herbal medicine modified attapulgite; 5) mixing PP, AES, methyl methacrylate, alkyl glycoside, paraffin, polyhexamethyl guanidine phosphate, expanded vermiculite, D-glyceraldehyde, maltose, chloroplatinic acid, the Chinese herbal medicine modified attapulgite and the Chinese herbal medicine filter cake, and performing melt blowing to obtain the PP melt-blown filter cartridge. The PP melt-blown filter cartridge has excellent filtration and antibacterial effects.
Description
Technical field
The present invention relates to filtration core, in particular it relates to based on attapulgite modified PP melt-blown filter and preparation method thereof.
Background technology
Filtration core is a kind of filter plant, is the core component of filter.Filtration core is mainly used in following field: electronics
Industry: reverse osmosis water system pre-filtering, deionized water system pre-filtering；Food industry: beverage, medicated beer, mineral water etc. filter；Change
Learn industry: organic solvent, ink etc. filter；Medical industry: medicine, biological and the filtration of blood plasma product, compressed air and gas
Filter；Other: electroplate liquid, metalworking fluid, filtration of photosensitive resist agent and magnetic medium etc..
Dividing according to manufacturing process, filtration core mainly has PP filter element and Wire-wound filter core two kinds；Wherein, PP filter element is also referred to as PP
Melt-blown filter, melt blown filter core is tangled by polypropylene superfine fiber hot melt and makes, and fiber is randomly formed three-dimensional micropore knot in space
Structure, dimension aperture, hole flow to distribution gradient along filtrate, integrate surface, deep layer, essence essence filter, the miscellaneous of different-grain diameter can be retained
Matter；Filter element accuracy rating 0.5-100 μm, its flux is more than 1.5 times of room, equal accuracy peak filter element, meets various project installation
Needs.Wire-wound filter core is to be wrapped on stephanoporate framework refined forming by the textile fabric yarn precise with good strainability
's；Its thread material has polypropylene fiber, acrylic fiber, degreasing cotton fiber etc.；By controlling the winding elasticity of yarn during winding
With dilute density, the filtration core of different accuracy can be made, can effectively remove the float of various liquid, granule foreign etc., to respectively
Plant liquid and have higher clean-up effect.
Although existing PP filter element has the filter effect of excellence, but after PP filter element uses, its surface can form dirt
Layer, meanwhile, meeting cooperating microorganisms in schmutzband, and then the liquid filtered is caused pollution, therefore, this phenomenon greatly limits
Make the development of PP filter element.
Summary of the invention
It is an object of the invention to provide a kind of based on attapulgite modified PP melt-blown filter and preparation method thereof, by this
The PP melt-blown filter that method prepares has filter effect and the antibacterial effect of excellence；Meanwhile, this preparation method operation is simple, raw material
It is easy to get.
To achieve these goals, the invention provides a kind of preparation side based on attapulgite modified PP melt-blown filter
Method, including:
1) polymer coating is sprayed at the surface of attapulgite, be then dried, be placed in dilution heat of sulfuric acid carry out soaking,
Filter to obtain activating attapulgite；
2) silver nitrate solution, Hydrazinium sulfate solution are sprayed the surface in activation attapulgite simultaneously, stands and repair with prepared silver
Decorations attapulgite；
3) Chinese herbal medicine is placed in water carries out decocting, filtering to obtain extracts of Chinese herbal medicine and Chinese herbal medicine filter cake；
4) in the presence of protection gas, carry out at modified by silver attapulgite is placed in 240-255 DEG C calcining 25-40min, connect
And calcining afterproduct is placed in extracts of Chinese herbal medicine carries out impregnating, filter to obtain the attapulgite of Chinese herbal medicine modification；
5) by PP (polypropylene), AES (acrylonitrile ethylene styrene copolymer), methyl methacrylate, alkyl polyglucoside,
The modified attapulgite of paraffin, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-glyceraldehyde, maltose, chloroplatinic acid, Chinese herbal medicine with
Chinese herbal medicine filter cake is mixing, melt-blown to prepare based on attapulgite modified PP melt-blown filter；
Wherein, polymer coating contain polyvinyl alcohol, para-aminophenol platinum, palladium (II)-2-(5-Bromo-2-pyridylazo)-
5-diethylaminophenol, Chinese herbal medicine contains Herba Cymbopogonis Citrari, Bulbus Allii Macrostemonis, Radix Glycyrrhizae, Folium Mori, Fructus Forsythiae, Herba Inulae, Radix Paeoniae Rubra, Radix Knoxiae magnolia obovata.
Invention further provides a kind of based on attapulgite modified PP melt-blown filter, this PP melt-blown filter is by upper
The preparation method stated is prepared.
In technique scheme, the technique of the present invention is as follows: first to attapulgite sprayed-on polymer coating and acidifying
Process and then obtain activating attapulgite；Then, the redox reaction by silver nitrate solution, Hydrazinium sulfate solution is recessed in activation
The surface of convex rod soil forms modified by silver layer to obtain modified by silver attapulgite；Then, Chinese herbal medicine decocting is carried to obtain Chinese herbal medicine
Take liquid and Chinese herbal medicine filter cake；Further, modified by silver attapulgite is calcined, and just calcining afterproduct is placed in Chinese herbal medicine extracting
Liquid carries out impregnating to obtain the attapulgite that Chinese herbal medicine is modified；Finally, by PP, AES, methyl methacrylate, alkyl polyglucoside, stone
The modified attapulgite of wax, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-glyceraldehyde, maltose, chloroplatinic acid, Chinese herbal medicine with in
Medical herbs filter cake is mixing, melt-blown to prepare based on attapulgite modified PP melt-blown filter.The present invention is by each former in said method
Material and the synergism of each step, and then make the PP melt-blown filter prepared not only have the filter effect of excellence, have simultaneously
There is the bactericidal and bacteriostatic effect of excellence；It addition, this preparation method operation is simple, raw material is easy to get and is convenient for being widely used.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides a kind of preparation method based on attapulgite modified PP melt-blown filter, including:
1) polymer coating is sprayed at the surface of attapulgite, be then dried, be placed in dilution heat of sulfuric acid carry out soaking,
Filter to obtain activating attapulgite；
2) silver nitrate solution, Hydrazinium sulfate solution are sprayed the surface in activation attapulgite simultaneously, stands and repair with prepared silver
Decorations attapulgite；
3) Chinese herbal medicine is placed in water carries out decocting, filtering to obtain extracts of Chinese herbal medicine and Chinese herbal medicine filter cake；
4) in the presence of protection gas, carry out at modified by silver attapulgite is placed in 240-255 DEG C calcining 25-40min, connect
And calcining afterproduct is placed in extracts of Chinese herbal medicine carries out impregnating, filter to obtain the attapulgite of Chinese herbal medicine modification；
5) by PP (polypropylene), AES (acrylonitrile ethylene styrene copolymer), methyl methacrylate, alkyl polyglucoside,
The modified attapulgite of paraffin, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-glyceraldehyde, maltose, chloroplatinic acid, Chinese herbal medicine with
Chinese herbal medicine filter cake is mixing, melt-blown to prepare based on attapulgite modified PP melt-blown filter；
Wherein, polymer coating contain polyvinyl alcohol, para-aminophenol platinum, palladium (II)-2-(5-Bromo-2-pyridylazo)-
5-diethylaminophenol, Chinese herbal medicine contains Herba Cymbopogonis Citrari, Bulbus Allii Macrostemonis, Radix Glycyrrhizae, Folium Mori, Fructus Forsythiae, Herba Inulae, Radix Paeoniae Rubra, Radix Knoxiae magnolia obovata.
Step 1 in the present invention) in, the consumption of each material can select in wide scope, but for prepared PP
Melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 1) in, relative to 100 weight portions
Attapulgite, the consumption of polymer coating is 3-5 weight portion, and the consumption of dilution heat of sulfuric acid is 150-300 weight portion.
Step 1 in the present invention) in, the constituent content of polymer coating can select in wide scope, but in order to
The PP melt-blown filter prepared has the most excellent filtration and sterilization, sterilization effect, it is preferable that in polymer coating, to ammonia
The content of base phenol platinum is 0.8-1.5 weight %, the content of palladium (II)-2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol
For 0.2-0.9 weight %.
Step 1 in the present invention) in, the concentration of dilution heat of sulfuric acid can select in wide scope, but in order to prepare
PP melt-blown filter there is the most excellent filtration and sterilization, sterilization effect, it is preferable that the concentration of dilution heat of sulfuric acid is 15-20
Weight %.
Step 1 in the present invention) in, the actual conditions being dried can select in wide scope, but in order to prepared
PP melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 1) in, be dried at least meet with
Lower condition: baking temperature is 120-130 DEG C, drying time is 5-8h.
Step 1 in the present invention) in, the actual conditions of immersion can select in wide scope, but in order to prepared
PP melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that soaks and at least meets following condition: soak
Temperature is 45-60 DEG C, and soak time is 1-3h.
Step 2 in the present invention) in, the consumption of each material can select in wide scope, but for prepared PP
Melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 2) in, relative to 100 weight portions
Activation attapulgite, the consumption of silver nitrate solution is 5-9 weight portion, and the consumption of Hydrazinium sulfate solution is 10-13 weight portion.
Step 2 in the present invention) in, silver nitrate solution can select with the concentration of Hydrazinium sulfate solution in wide scope,
But in order to prepared PP melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that silver nitrate solution
Concentration is 4-6 weight %, and the concentration of Hydrazinium sulfate solution is 2-3 weight %.
Step 2 in the present invention) in, the condition of standing can select in wide scope, but in order to prepared PP melts
Blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that stands and at least meets following condition: dwell temperature
For 25-35 DEG C, time of repose is 4-6h.
Step 3 in the present invention) in, the consumption of each material can select in wide scope, but for prepared PP
Melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 3) in, relative to 100 weight portions
Herba Cymbopogonis Citrari, the consumption of Bulbus Allii Macrostemonis is 61-72 weight portion, and the consumption of Radix Glycyrrhizae is 18-25 weight portion, and the consumption of Folium Mori is 32-45 weight portion,
The consumption of Fructus Forsythiae is 36-41 weight portion, and the consumption of Herba Inulae is 40-46 weight portion, and the consumption of Radix Paeoniae Rubra is 41-48 weight portion, red
The consumption of the Radix Euphorbiae Pekinensis is 30-39 weight portion, and the consumption of Cortex Magnoliae Officinalis is 33-45 weight portion, and the consumption of water is 300-500 weight portion.
Step 3 in the present invention) in, the condition of decoction can select in wide scope, but in order to prepared PP melts
Blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that decocts and at least meets following condition: decoct temperature
For 100-110 DEG C, decocting time is 7-8h.
Step 4 in the present invention) in, the consumption of each material can select in wide scope, but for prepared PP
Melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 4) in, relative to 100 weight portions
Modified by silver attapulgite, the consumption of extracts of Chinese herbal medicine is 250-400 weight portion.
Step 4 in the present invention) in, the actual conditions of dipping can select in wide scope, but in order to prepared
PP melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 4) in, dipping at least meet with
Lower condition: dipping temperature is 55-70 DEG C, dip time is 6-10h.
Step 5 in the present invention) in, the consumption of each material can select in wide scope, but for prepared PP
Melt-blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that, in step 5) in, relative to 100 weight portions
The consumption of PP, AES be 60-74 weight portion, the consumption of methyl methacrylate is 38-55 weight portion, the consumption of alkyl polyglucoside
For 17-26 weight portion, the consumption of paraffin is 40-52 weight portion, and the poly-phosphatic consumption of hexamethyl guanidine is 8-16 weight portion, expands
The consumption of Vermiculitum is 14-19 weight portion, and the consumption of D-glyceraldehyde is 8-13 weight portion, and the consumption of maltose is 5-9 weight portion, chlorine
The consumption of platinic acid is 4.5-8 weight portion, and the consumption of the attapulgite that Chinese herbal medicine is modified is 11-19 weight portion, Chinese herbal medicine filter cake
Consumption is 27-38 weight portion.
Step 5 in the present invention) in, mixing condition can select in wide scope, but in order to prepared PP melts
Blown filter has the most excellent filtration and sterilization, sterilization effect, it is preferable that in step 5) in, mixing at least meet following bar
Part: melting temperature is 210-225 DEG C, mixing time is 4-6h.
Invention further provides a kind of based on attapulgite modified PP melt-blown filter, this PP melt-blown filter is by upper
The preparation method stated is prepared.
Hereinafter will be described the present invention by embodiment.
Embodiment 1
1) by polymer coating (containing polyvinyl alcohol, the para-aminophenol platinum of 1.2 weight %, the palladium of 0.7 weight %
(II)-2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol) it is sprayed at the surface of attapulgite, then dry at 125 DEG C
Dry 6h, it is placed in the dilution heat of sulfuric acid of 50 DEG C and 18 weight % and carries out soaking 2h, filtering to obtain activating attapulgite, wherein,
Attapulgite, polymer coating, the weight ratio of dilution heat of sulfuric acid are 100:4:200；
2) the Hydrazinium sulfate solution of the silver nitrate solution of 5 weight %, 2.5 weight % is sprayed simultaneously in activation attapulgite
Surface, in 30 DEG C stand 5h with prepared modified by silver attapulgite, wherein, activate attapulgite, silver nitrate solution, Hydrazinium sulfate solution
Weight ratio be 100:7:11；
3) by Herba Cymbopogonis Citrari, Bulbus Allii Macrostemonis, Radix Glycyrrhizae, Folium Mori, Fructus Forsythiae, Herba Inulae, Radix Paeoniae Rubra, Radix Knoxiae, Cortex Magnoliae Officinalis and water according to 100:67:
The weight ratio of 22:38:39:43:45:34:38:400 is mixed is incorporated at 105 DEG C decoction 7.5h, filtration to obtain Chinese herbal medicine extracting
Liquid and Chinese herbal medicine filter cake；
4) in the presence of protection gas (nitrogen), modified by silver attapulgite is placed at 255 DEG C and carries out calcining 30min, connect
And calcining afterproduct is placed in the extracts of Chinese herbal medicine of 60 DEG C (modified by silver attapulgite with the weight ratio of extracts of Chinese herbal medicine is
100:300) the attapulgite that dipping 8h, filtration are modified to obtain Chinese herbal medicine；
5) by PP, AES, methyl methacrylate, alkyl polyglucoside, paraffin, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-
The attapulgite of glyceraldehyde, maltose, chloroplatinic acid, Chinese herbal medicine modification and Chinese herbal medicine filter cake are according to 100:68:45:23:47:10:
The weight ratio of 17:11:7:6:15:33 mix be incorporated in mixing 5h at 215 DEG C, melt-blown with prepare based on attapulgite modified PP melt
Blown filter A1.
Embodiment 2
1) by polymer coating (containing polyvinyl alcohol, the para-aminophenol platinum of 0.8 weight %, the palladium of 0.2 weight %
(II)-2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol) it is sprayed at the surface of attapulgite, then dry at 120 DEG C
Dry 5h, it is placed in the dilution heat of sulfuric acid of 45 DEG C and 15 weight % and carries out soaking 1h, filtering to obtain activating attapulgite, wherein,
Attapulgite, polymer coating, the weight ratio of dilution heat of sulfuric acid are 100:3:150；
2) the Hydrazinium sulfate solution of the silver nitrate solution of 4 weight %, 2 weight % is sprayed simultaneously in the table of activation attapulgite
Face, stand 4h with prepared modified by silver attapulgite in 25 DEG C, wherein, activation attapulgite, silver nitrate solution, Hydrazinium sulfate solution
Weight ratio is 100:5:10；
3) by Herba Cymbopogonis Citrari, Bulbus Allii Macrostemonis, Radix Glycyrrhizae, Folium Mori, Fructus Forsythiae, Herba Inulae, Radix Paeoniae Rubra, Radix Knoxiae, Cortex Magnoliae Officinalis and water according to 100:61:
18:32:36:40:41:30:33, mixed being incorporated at 100 DEG C of weight ratio of 300 decoct 7h, filtration to obtain extracts of Chinese herbal medicine
With Chinese herbal medicine filter cake；
4) in the presence of protection gas (argon), modified by silver attapulgite is placed at 240 DEG C and carries out calcining 25min, connect
And calcining afterproduct is placed in the extracts of Chinese herbal medicine of 55 DEG C (modified by silver attapulgite with the weight ratio of extracts of Chinese herbal medicine is
100:250) the attapulgite that dipping 6h, filtration are modified to obtain Chinese herbal medicine；
5) by PP, AES, methyl methacrylate, alkyl polyglucoside, paraffin, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-
The attapulgite of glyceraldehyde, maltose, chloroplatinic acid, Chinese herbal medicine modification and Chinese herbal medicine filter cake are according to 100:60:38:17:40:8:
14:8:5:4.5:11:27 weight ratio mix be incorporated in mixing 4h at 210 DEG C, melt-blown with prepare based on attapulgite modified PP
Melt-blown filter A2.
Embodiment 3
1) by polymer coating (containing polyvinyl alcohol, the para-aminophenol platinum of 1.5 weight %, the palladium of 0.9 weight %
(II)-2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol) it is sprayed at the surface of attapulgite, then dry at 130 DEG C
Dry 8h, it is placed in the dilution heat of sulfuric acid of 60 DEG C and 20 weight % and carries out soaking 3h, filtering to obtain activating attapulgite, wherein,
Attapulgite, polymer coating, the weight ratio of dilution heat of sulfuric acid are 100:5:300；
2) the Hydrazinium sulfate solution of the silver nitrate solution of 6 weight %, 3 weight % is sprayed simultaneously in the table of activation attapulgite
Face, stand 6h with prepared modified by silver attapulgite in 35 DEG C, wherein, activation attapulgite, silver nitrate solution, Hydrazinium sulfate solution
Weight ratio is 100:9:13；
3) by Herba Cymbopogonis Citrari, Bulbus Allii Macrostemonis, Radix Glycyrrhizae, Folium Mori, Fructus Forsythiae, Herba Inulae, Radix Paeoniae Rubra, Radix Knoxiae, Cortex Magnoliae Officinalis and water according to 100:72:
The weight ratio of 25:45:41:46:48:39:45:500 is mixed is incorporated at 110 DEG C decoction 8h, filtration to obtain extracts of Chinese herbal medicine
With Chinese herbal medicine filter cake；
4) in the presence of protection gas (helium), modified by silver attapulgite is placed at 255 DEG C and carries out calcining 40min, connect
And calcining afterproduct is placed in the extracts of Chinese herbal medicine of 70 DEG C (modified by silver attapulgite with the weight ratio of extracts of Chinese herbal medicine is
100:250-400) the attapulgite that dipping 10h, filtration are modified to obtain Chinese herbal medicine；
5) by PP, AES, methyl methacrylate, alkyl polyglucoside, paraffin, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-
The attapulgite of glyceraldehyde, maltose, chloroplatinic acid, Chinese herbal medicine modification and Chinese herbal medicine filter cake are according to 100:74:55:26:52:16:
The weight ratio of 19:13:9:8:19:38 mix be incorporated in mixing 6h at 225 DEG C, melt-blown with prepare based on attapulgite modified PP melt
Blown filter A3.
Comparative example 1
Carry out preparing PP melt-blown filter B1, except for the difference that, step 3 according to the method for embodiment 1) in do not use Herba Cymbopogonis Citrari, Chinese onion
In vain, Radix Glycyrrhizae.
Comparative example 2
Carry out preparing PP melt-blown filter B2, except for the difference that, step 3 according to the method for embodiment 1) in do not use Folium Mori, company
Stick up, Herba Inulae.
Comparative example 3
Carry out preparing PP melt-blown filter B3, except for the difference that, step 3 according to the method for embodiment 1) in do not use Radix Paeoniae Rubra, red
The Radix Euphorbiae Pekinensis, Cortex Magnoliae Officinalis.
Comparative example 4
Carry out preparing PP melt-blown filter B4, except for the difference that, step 1 according to the method for embodiment 1) in do not use polymer to be coated with
Material.
Comparative example 5
Carry out preparing PP melt-blown filter B5, except for the difference that, step 1 according to the method for embodiment 1) in do not carry out sulfuric acid solution
Soak.
Comparative example 6
Carry out preparing PP melt-blown filter B6 according to the method for embodiment 1, except for the difference that, omit step 2).
Comparative example 7
Carry out preparing PP melt-blown filter B7, except for the difference that, step 4 according to the method for embodiment 1) in calcining heat be 260
℃。
Comparative example 8
Carry out preparing PP melt-blown filter B8, except for the difference that, step 4 according to the method for embodiment 1) in calcining heat be 230
℃。
Comparative example 9
Carry out preparing PP melt-blown filter B9, except for the difference that, step 4 according to the method for embodiment 1) in do not carry out Chinese herbal medicine and carry
Take immersion stain.
Comparative example 10
Carry out preparing PP melt-blown filter B10, except for the difference that, step 5 according to the method for embodiment 1) in do not use Chinese herbal medicine
Modified attapulgite.
Comparative example 11
Carry out preparing PP melt-blown filter B11, except for the difference that, step 5 according to the method for embodiment 1) in do not use Chinese herbal medicine
Filter cake.
Detection example 1
Take Yangtze River Water from Wuhu, the Changjiang river section to detect according to the method in GB/T5750.4-2006, then water is passed through
The filter being provided with above-mentioned PP melt-blown filter filters, and detects then according to the method in GB/T5750.4-2006 and filters
After water, concrete outcome is shown in Table 1.
Table 1
By above-described embodiment, comparative example and detection example, the PP melt-blown filter that the present invention provides has the mistake of excellence
Filter effect and bactericidal effect；Meanwhile, the data also by above-mentioned table 1 understand, between each step and each raw material that the present invention provides
There is synergism in close relations.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a preparation method based on attapulgite modified PP melt-blown filter, it is characterised in that including:
1) polymer coating is sprayed at the surface of attapulgite, is then dried, is placed in dilution heat of sulfuric acid and carries out soaking, filtering
To obtain activating attapulgite；
2) silver nitrate solution, Hydrazinium sulfate solution are sprayed the surface in described activation attapulgite simultaneously, stands and repair with prepared silver
Decorations attapulgite；
3) Chinese herbal medicine is placed in water carries out decocting, filtering to obtain extracts of Chinese herbal medicine and Chinese herbal medicine filter cake；
4) in the presence of protection gas, carry out at described modified by silver attapulgite is placed in 240-255 DEG C calcining 25-40min, connect
And calcining afterproduct is placed in described extracts of Chinese herbal medicine carries out impregnating, filter to obtain the attapulgite of Chinese herbal medicine modification；
5) by PP (polypropylene), AES (acrylonitrile ethylene styrene copolymer), methyl methacrylate, alkyl polyglucoside, stone
The attapulgite that wax, poly-hexamethyl guanidine phosphate, expanded vermiculite, D-glyceraldehyde, maltose, chloroplatinic acid, described Chinese herbal medicine are modified
Mixing with Chinese herbal medicine filter cake, melt-blown described based on attapulgite modified PP melt-blown filter to prepare；
Wherein, described polymer coating contain polyvinyl alcohol, para-aminophenol platinum, palladium (II)-2-(5-Bromo-2-pyridylazo)-
5-diethylaminophenol, described Chinese herbal medicine contains Herba Cymbopogonis Citrari, Bulbus Allii Macrostemonis, Radix Glycyrrhizae, Folium Mori, Fructus Forsythiae, Herba Inulae, Radix Paeoniae Rubra, Radix Knoxiae and thickness
Piao.
Preparation method the most according to claim 1, wherein, in step 1) in, relative to the described attapulgite of 100 weight portions
Soil, the consumption of described polymer coating is 3-5 weight portion, and the consumption of described dilution heat of sulfuric acid is 150-300 weight portion；
Preferably, in described polymer coating, the content of described para-aminophenol platinum is 0.8-1.5 weight %, described palladium
(II) content of-2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol is 0.2-0.9 weight %；
It is highly preferred that the concentration of described dilution heat of sulfuric acid is 15-20 weight %.
Preparation method the most according to claim 1 and 2, wherein, in step 1) in, described being dried at least meets following bar
Part: baking temperature is 120-130 DEG C, drying time is 5-8h；
Preferably, described immersion at least meets following condition: soaking temperature is 45-60 DEG C, and soak time is 1-3h.
Preparation method the most according to claim 3, wherein, in step 2) in, recessed relative to the described activation of 100 weight portions
Convex rod soil, the consumption of described silver nitrate solution is 5-9 weight portion, and the consumption of described Hydrazinium sulfate solution is 10-13 weight portion；
Preferably, the concentration of described silver nitrate solution is 4-6 weight %, and the concentration of described Hydrazinium sulfate solution is 2-3 weight %；
It is highly preferred that described standing at least meets following condition: dwell temperature is 25-35 DEG C, time of repose is 4-6h.
Preparation method the most according to claim 4, wherein, in step 3) in, relative to the described Herba Cymbopogonis Citrari of 100 weight portions,
The consumption of described Bulbus Allii Macrostemonis is 61-72 weight portion, and the consumption of described Radix Glycyrrhizae is 18-25 weight portion, and the consumption of described Folium Mori is 32-45
Weight portion, the consumption of described Fructus Forsythiae is 36-41 weight portion, and the consumption of described Herba Inulae is 40-46 weight portion, the use of described Radix Paeoniae Rubra
Amount is 41-48 weight portion, and the consumption of described Radix Knoxiae is 30-39 weight portion, and the consumption of described Cortex Magnoliae Officinalis is 33-45 weight portion, institute
The consumption stating water is 300-500 weight portion；
Preferably, described decoction at least meets following condition: decocting temperature and be 100-110 DEG C, decocting time is 7-8h.
6. according to the preparation method described in claim 4 or 5, wherein, in step 4) in, relative to the described silver of 100 weight portions
Modifying attapulgite, the consumption of described extracts of Chinese herbal medicine is 250-400 weight portion.
Preparation method the most according to claim 6, wherein, in step 4) in, described dipping at least meets following condition: leaching
Stain temperature is 55-70 DEG C, and dip time is 6-10h.
Preparation method the most according to claim 7, wherein, in step 5) in, relative to the described PP of 100 weight portions, institute
The consumption stating AES is 60-74 weight portion, and the consumption of described methyl methacrylate is 38-55 weight portion, described alkyl polyglucoside
Consumption is 17-26 weight portion, and the consumption of described paraffin is 40-52 weight portion, and the described poly-phosphatic consumption of hexamethyl guanidine is 8-
16 weight portions, the consumption of described expanded vermiculite is 14-19 weight portion, and the consumption of described D-glyceraldehyde is 8-13 weight portion, described
The consumption of maltose is 5-9 weight portion, and the consumption of described chloroplatinic acid is 4.5-8 weight portion, the attapulgite that described Chinese herbal medicine is modified
The consumption of soil is 11-19 weight portion, and the consumption of described Chinese herbal medicine filter cake is 27-38 weight portion.
9. according to the preparation method described in claim 7 or 8, wherein, in step 5) in, described mixing at least meet following bar
Part: melting temperature is 210-225 DEG C, mixing time is 4-6h.
10. one kind based on attapulgite modified PP melt-blown filter, it is characterised in that described PP melt-blown filter passes through claim
In 1-9, the preparation method described in any one is prepared.
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Application publication date: 20170111 |