CN106582113A - Bacterial cellulose fibres-containing air filtering paper material - Google Patents
Bacterial cellulose fibres-containing air filtering paper material Download PDFInfo
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- CN106582113A CN106582113A CN201611208828.1A CN201611208828A CN106582113A CN 106582113 A CN106582113 A CN 106582113A CN 201611208828 A CN201611208828 A CN 201611208828A CN 106582113 A CN106582113 A CN 106582113A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- 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
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0216—Bicomponent or multicomponent fibres
Abstract
The invention belongs to the field of air filtering papers, and particularly relates to a bacterial cellulose fibres-containing air filtering paper material and a manufacturing method thereof. The bacterial cellulose fibres-containing air filtering paper material is formed by performing papermaking on bacterial cellulose fibres, glass fibres, plant fibres and chemical synthesis fibres serving as raw materials through a wet method non-woven fabric process. The raw materials consist of the following components in percentage by weight: 5 to 30 percent of the bacterial cellulose fibres, 1 to 8 percent of the glass fibres, 40 to 75 percent of the chemical synthesis fibres and 15 to 45 percent of the plant fibres. The obtained filtering paper is uniform, breathable, extremely good in filtering effect, comfortable, good in skin touch, high in tensile strength, high in hydrophilia, non-toxic, tasteless, safe and sanitary, has a certain hardness, and can be used for household, medical and hygiene articles.
Description
Technical field：
The invention belongs to air filter paper field, and in particular to a kind of air filtration paper material containing Bacterial cellulose and
Its manufacture method.
Background technology：
With the continuous development of China's economy, environment in recent years problem is constantly highlighted, and atmosphere polluting problem is particularly subject to
People pay close attention to.In urban environment, TSP concentration is generally exceeded.The application of air filting material is no longer limited to be similar to
The aspects such as manufacturing industry, scientific research in food, medicine, high-grade, precision and advanced material etc..It starts and rapidly enters people
Life in, haze mask, in-car purification of air, family's purification of air etc..
Bacterial cellulose, as new biological fiber, is natural nanometer stage material, and which is formed by glucoside
Fibril beam through aggregation constitute banding microfibril bundle width be only 70-80nm, its diameter is less than superfine synthesized fiber
The 1/10 of diameter, is the 1/1000-1/100 of cotton fiber and the wood fiber, is most thin in known fiber.Highly-breathable, Yi Jiqin
Skin makes which that advantage and potentiality that product market has other materials incomparable are filtered in people's air defense.Therefore, Bacterial cellulose should
With filtering material market development will be greatly facilitated.
The content of the invention：
In view of this, it is an object of the invention to provide a kind of air filtration paper material containing Bacterial cellulose.
The air filter paper with bacteria cellulose fibre, glass fibre, Plant fiber and chemical industry synthesis fiber as raw material,
Jing wet nonwoven fabricss techniques are manufactured paper with pulp and are formed；
Described raw material weight percentage ratio is consisted of：Bacteria cellulose fibre 5%～30%, glass fibre 1%～8%,
Chemical industry synthesis fiber 40%～75%, Plant fiber 15%～45%；
A diameter of 50-200nm of described bacteria cellulose fibre, length are 0.1-10 μm；
Described glass fibre length is 10-1000 μm；
Described chemical industry synthesis fibre length is 1-10mm；
Described chemical industry synthesis fiber can be any one of PE fibers, polypropylene fibre or composite fibre；
Described Plant fiber can be cotton fiber or flaxen fiber；
, by Bacterial cellulose particle preparation, described Bacterial cellulose preparation method of granules is such as the bacteria cellulose fibre
Under：
(1) seed culture condition is：Xylose gluconic acid acetobacter is seeded in seed culture medium, 25 in constant-temperature table
DEG C, 120-150rpm culture 40-48 hours obtain seed liquor；
(2) Bacterial cellulose fermenting and producing is controlled using three-stage：
First stage：Seed liquor is seeded in fermentation medium by the inoculum concentration of 5-10%, 26-28 DEG C, 120-
180rpm is cultivated 24 hours；
Second stage：Cultivation temperature is adjusted to into 28-30 DEG C, 150-240rpm is cultivated 48 hours；
Phase III：28-30 DEG C, 80-160rpm continue culture 48 hours, obtain Bacterial cellulose ferment particulate；
(3) by fermentation culture obtain Bacterial cellulose ferment particulate Jing deionized water rinsings, 1%NaOH solution digestions,
Deionized water rinsing obtains target product to neutrality.
The culture medium is specific as follows：
(1) seed culture medium：1000 parts by weight meters, Semen Maydis powder 5-15 parts, analysis for soybean powder 5-12 part, white sugar 5-10 parts,
Yeast extract 1-3 parts, tryptone 1-3 parts, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water, to 6.8,121 DEG C go out pH
Bacterium 20 minutes；
(2) fermentation medium：1000 parts by weight meters, Semen Maydis powder 8-20 parts, bean cake powder 5-20 parts, white sugar 5-15 parts,
2 parts of potassium dihydrogen phosphate, 2 parts of magnesium sulfate, 1 part of calcium chloride, balance of water, to 6.8,121 DEG C sterilize 20 minutes pH；
The Semen Maydis powder is crushed to 60 mesh and following by whole kernel corn；
The analysis for soybean powder is crushed to 60 mesh and following by soybean grain；
The bean cake powder is a leaching bean cake, is crushed to 60 mesh and following；
The white sugar is food grade certified products；
The yeast extract, tryptone, potassium dihydrogen phosphate, magnesium sulfate, calcium chloride are commercially available conventional reagent.
It is a further object to provide a kind of above-mentioned air filtration paper material containing bacteria cellulose fibre
Preparation method, it is specific as follows：
1st, prepare bacteria cellulose fibre serosity：Bacterial cellulose ferment particulate is added to Double roll crusher is carried out tentatively
Diameter is crushed to less than 1mm, is then added in ultra micro colloid mill, it is in rotating speed 6000-14000rpm, thin under linear velocity 25-40m/s
Mill 5-10min；After 300-500 mesh filter screen filter pressings, required bacteria cellulose fibre serosity is obtained；
2nd, it is quantitative：By the bacteria cellulose fibre serosity Jing homogenizer homogenizing of gained, homogenization pressure 40Mpa, time
10min, takes and is dried in right amount, determines fiber contents on dry basis in bacteria cellulose fibre serosity；
3rd, slurrying：According to fiber butt percentage by weight：Bacteria cellulose fibre 5%～30%, glass fibre 1%～
8%, chemical industry synthesis fiber 40%～75%, Plant fiber 15%～45%, respectively by bacteria cellulose fibre fiber slurry, glass
Glass fiber, chemical industry synthesis fiber, Plant fiber are added to beater, add dispersant and water, and being made into fiber quality concentration is
The slurry of 0.5%-1.5%, discongests homogenate 25-45min, while sonic oscillation 10-30min is obtained paper making pulp；Described is even
Install sonic oscillation device in pulp grinder additional, frequency is 40KHZ；Described discongests homogenization process with sonic oscillation process while carrying out；
4th, copy paper：Paper making pulp is input on paper machine and is manufactured paper with pulp, obtained into Jing after dehydrate moisture is less than 5%
Product.
Described dispersant is：Polyethylene glycol oxide or polyacrylamide；Its consumption is：The 0.1%- of absolute dried paper pulp gross weight
0.6%.
Step 1 arrives step 3 methods described, is not limited only to the use of this technique, it may also be used for papermaking, nonwoven fabric manufacturing etc.
The process and addition of other class bacteria cellulose materials.
Homogenate oscillation device described in step 3 is not limited only to the use of this technique, it may also be used for other nanofibers, length are fine
Dimension is used in mixed way.
Beneficial effect：
(1) compared with prior art, beneficial effects of the present invention are as follows：The filtration paper for obtaining is fine because of Bacterial cellulose
The natural characteristic of dimension includes degradable, high-purity, good moisturizing breathability, high Young's modulus, high-biocompatibility etc., makes
This product also has that uniform ventilative, filter effect is splendid, comfortable and skin-friendly is good, tensile strength is high, has certain degree of hardness, hydrophilic
Good, the nonpoisonous and tasteless, safety and sanitation of property；Can be used for family and medical and hygiene article.Coordinate existing filtering material to use, realize multistage
Filter, high level purification of air can be met and required.In air, the detention rate of 0.5 μm of granule can reach more than 99%, 0.3 μm
Granule detention rate accessible more than 98%；
(2) present invention production culture medium that uses of bacteria cellulose fibre it is raw materials used it is cheap and easy to get, nutritious comprehensively,
Processing technique is simple；Reduce cost of material while, significantly improve bacteria cellulose output to 24g/L and more than, effectively
The yield of Bacterial cellulose is improve, the production cost of Bacterial cellulose is greatly lowered, effectively facilitate pushing away for Bacterial cellulose
It is wide to apply；The major ingredient of Semen Maydis powder of the invention, analysis for soybean powder, bean cake powder as Bacterial cellulose fermentation culture, more conventional antibacterial are fine
The plain fermentation medium cost of dimension reduces 5-7 times, and comprehensive nutrition, easily separates with product, is conducive to the cleaning of Bacterial cellulose
And collection；Not only low cost, yield are high for culture medium provided by the present invention, and improve the production efficiency of cellulose, pass through
The culture of 136-144 hours can complete the Bacterial cellulose fermentation yield of 24g/L and the above.The Bacterial cellulose fermentation of the present invention
Method, first using the fermentation process of three-stage temperature-speed-changing, adjusts temperature according to the inoculum concentration and metabolic alterations of strain and turns
Speed, it is easy to operate, effectively increase the yield of Bacterial cellulose.
Specific implementation method
Embodiment 1:A kind of air filtration paper material containing bacteria cellulose fibre and its preparation
A kind of air filtration paper material, is prepared by the raw material of following percentage by weight：Bacteria cellulose fibre 10%, glass
Fiber 3%, PE fibers 45%, cotton fiber 42%；
A diameter of 50-200nm of described bacteria cellulose fibre, length are 0.1-10 μm；
Described glass fibre length is 10-1000 μm；
Described PE fibre lengths are 1-10mm；
The preparation method of the air filtration paper material is as follows：
1st, prepare bacteria cellulose fibre serosity：
Bacterial cellulose particle preparation：
Seed culture medium：In terms of 1000 parts, 15 parts of Semen Maydis powder, 5 parts of analysis for soybean powder, 5 parts of white sugar, 1 part of tryptone, yeast
2 parts of extractum, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes；
Fermentation medium：In terms of 1000 parts, 20 parts of Semen Maydis powder, 6 parts of bean cake powder, 5 parts of white sugar, 2 parts of potassium dihydrogen phosphate, sulfur
2 parts of sour magnesium, 1 part of calcium chloride, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes；
The Semen Maydis powder is crushed to 60 mesh and following by whole kernel corn；The analysis for soybean powder by soybean grain be crushed to 60 mesh and with
Under；The bean cake powder is a leaching bean cake, is crushed to 60 mesh and following；The white sugar is food grade certified products；The yeast leaching
Cream, tryptone, potassium dihydrogen phosphate, magnesium sulfate, calcium chloride are commercially available conventional reagent.
It is prepared by seed：Xylose gluconic acid acetobacter CCTCC AB2040512 slant strains are connected to into kind in superclean bench
In sub- culture medium, 25 DEG C in constant-temperature table, 150rpm cultivate 48 hours, it is standby.
Bacterial cellulose ferments the first stage：Seed is seeded in fermentation tank by 10% inoculum concentration, 180rpm, 28 DEG C
Culture 24 hours；Second stage：By condition of culture be adjusted to 30 DEG C, 210rpm cultivate 48 hours；Phase III：By adjustment of rotational speed
For 140rpm, 28 DEG C of cultures are filtered to remove bacterium solution after 48 hours and obtain Bacterial cellulose granular materialss.
Product process：Deionized water cleaning gained granular materialss, use 1% hydrogen-oxygen of mass concentration after cleaning remaining medium
Change 90 DEG C of sodium solution to process 15 minutes, deionized water rinsing obtains BC (Bacterial cellulose) granule to neutral；
By bacterial fibers crude granule, being added to Double roll crusher carries out preliminary crushing to diameter less than 1mm, is then added to surpass
In idiozome mill, in rotating speed 6000rpm, fine grinding 5min under linear velocity 40m/s；It is after 300 mesh filter screen filter pressings, thin needed for obtaining
Fungin fiber slurry；
2nd, it is quantitative：By the bacteria cellulose fibre serosity Jing homogenizer homogenizing of gained, homogenization pressure 40Mpa, time
10min, takes and is dried in right amount, determines fiber contents on dry basis in bacteria cellulose fibre serosity；
3rd, slurrying：According to percentage by weight it is：Bacteria cellulose fibre 10%, glass fibre 3%, PE fibers 45%, cotton
Fiber 42%, is added separately to beater, adds dispersant and water, is made into the slurry that mass concentration is 0.5%, discongests homogenate
25min, while sonic oscillation 40KHZ 15min are obtained paper making pulp；
Described dispersant is polyethylene glycol oxide, and its consumption is the 0.3% of absolute dried paper pulp gross weight；
4th, copy paper：Paper making pulp is input on paper machine and is manufactured paper with pulp, finished product is obtained Jing after dehydrate.
Gained finished product is homogeneous, tensile strength is higher, have that certain degree of hardness, good permeability, windage be general, filter effect is good
It is good, the detention rate 96% of 0.5 μm of granule in air, the detention rate of 0.3 μm of granule is 90%.
Embodiment 2：A kind of air filtration paper material containing bacteria cellulose fibre and its preparation
A kind of air filtration paper material, is prepared by the raw material of following percentage by weight：Bacteria cellulose fibre 20%, glass
Fiber 3%, polypropylene fibre 53%, cotton fiber 24%；
A diameter of 50-200nm of described bacteria cellulose fibre, length are 0.1-10 μm；
Described glass fibre length is 10-1000 μm；
Described polypropylene fibre length is 1-10mm；
The preparation method of the air filtration paper material is as follows：
1st, prepare bacteria cellulose fibre serosity：
Bacterial cellulose particle preparation：
Seed culture medium：In terms of 1000 parts, 10 parts of Semen Maydis powder, 12 parts of analysis for soybean powder, 6 parts of white sugar, 1 part of yeast extract, pancreas
1 part of peptone, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes.
Fermentation medium：In terms of 1000 parts, 14 parts of Semen Maydis powder, 8 parts of bean cake powder, 10 parts of white sugar, 2 parts of potassium dihydrogen phosphate,
2 parts of magnesium sulfate, 1 part of calcium chloride, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes.
It is prepared by seed：Xylose glucose vinegar bar CCTCC AB2040512 bacterium slant strains are connected to into kind in superclean bench
In sub- culture medium, 25 DEG C in constant-temperature table, 150rpm cultivate 48 hours, it is standby.
Bacterial cellulose ferments：
Seed is seeded in fermentation tank by 6% inoculum concentration, 140rpm, 27 DEG C cultivate 24 hours；Second stage：Will training
Foster condition be adjusted to 29 DEG C, adjustment of rotational speed be 240rpm cultivate 48 hours；Phase III：It is adjusted to 30 DEG C, rotating speed tune
It is whole cultivate 48 hours for 80rpm after be filtered to remove bacterium solution and obtain Bacterial cellulose granular materialss.Other processing modes such as embodiment 1.
Cleaned granule is added to Double roll crusher carries out preliminary crushing to diameter less than 1mm, is then added to ultra micro
In colloid mill, in rotating speed 14000rpm, fine grinding 10min under linear velocity 25m/s；It is after 500 mesh filter screen filter pressings, thin needed for obtaining
Fungin fiber slurry；
2nd, it is quantitative：By the bacteria cellulose fibre serosity Jing homogenizer homogenizing of gained, homogenization pressure 40Mpa, time
10min, takes and is dried in right amount, determines fiber contents on dry basis in bacteria cellulose fibre serosity；
3rd, slurrying：According to fiber butt percentage by weight：Bacteria cellulose fibre 20%, glass fibre 3%, polypropylene are fine
Dimension 53%, cotton fiber 24% are added separately to beater, add dispersant and water, are made into the slurry that mass concentration is 0.9%,
Homogenate 30min is discongested, while sonic oscillation 40KHZ 20min are obtained paper making pulp；
Described dispersant is polyacrylamide, and its consumption is the 0.6% of absolute dried paper pulp gross weight；
4th, copy paper：Paper making pulp is input on paper machine and is manufactured paper with pulp, finished product is obtained Jing after dehydrate.
Gained finished product is homogeneous, tensile strength is high, have that certain degree of hardness, good permeability, windage be higher, filter effect is excellent,
The detention rate 98% of 0.5 μm of granule in air, the detention rate of 0.3 μm of granule is 95%.
Embodiment 3：A kind of air filtration paper material containing bacteria cellulose fibre and its preparation
A kind of air filtration paper material, is prepared by the raw material of following percentage by weight：Bacteria cellulose fibre 17%, glass
Fiber 7%, composite fibre 60%, flax fiber 16%；
A diameter of 50-200nm of described bacteria cellulose fibre, length are 0.1-10 μm；
Described glass fibre length is 10-1000 μm；
Described composite fibre length is 1-10mm；
The preparation method of the air filtration paper material is as follows：
1st, prepare bacteria cellulose fibre serosity：
Bacterial cellulose particle preparation：
Seed culture medium is prepared：In terms of 1000 parts, 5 parts of Semen Maydis powder, 10 parts of analysis for soybean powder, 7 parts of white sugar, 2 parts of tryptone,
2 parts of yeast extract, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes.
Fermentation medium is prepared：In terms of 1000 parts, 10 parts of Semen Maydis powder, 14 parts of bean cake powder, 12 parts of white sugar, potassium dihydrogen phosphate
2 parts, 2 parts of magnesium sulfate, 1 part of calcium chloride, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes.
It is prepared by seed：Xylose gluconic acid acetobacter CCTCC AB2040512 slant strains are connected to into kind in superclean bench
In sub- culture medium, 25 DEG C in constant-temperature table, 130rpm cultivate 40 hours, it is standby.
Bacterial cellulose the first valency section of fermentation：Seed is seeded in fermentation tank by 5% inoculum concentration, setting speed is
120rpm, cultivation temperature are set as that 26 DEG C are cultivated 24 hours；Second stage：It is 180rpm by fermentation tank adjustment of rotational speed, cultivates temperature
Degree is adjusted to 28 DEG C and cultivates 48 hours；Phase III：By adjustment of rotational speed 160rpm, 29 DEG C of cultures were filtered to remove bacterium solution after 48 hours
Obtain Bacterial cellulose granular materialss.Other processing modes such as embodiment 1.
Cleaned granule is added to Double roll crusher carries out preliminary crushing to diameter less than 1mm, is then added to ultra micro
In colloid mill, in rotating speed 8000rpm, fine grinding 8min under linear velocity 30m/s；After 400 mesh filter screen filter pressings, required antibacterial is obtained
Cellulose fibre serosity；
2nd, it is quantitative：By the bacteria cellulose fibre serosity Jing homogenizer homogenizing of gained, homogenization pressure 40Mpa, time
10min, takes and is dried in right amount, determines fiber contents on dry basis in bacteria cellulose fibre serosity；
3rd, slurrying：According to fiber butt percentage by weight：Bacteria cellulose fibre 17%, glass fibre 7%, composite fibre
60%, flax fiber 16% is added separately to beater, adds dispersant and water, is made into the slurry that mass concentration is 1.5%,
Homogenate 35min is discongested, while sonic oscillation 40KHZ 25min are obtained paper making pulp；
Described dispersant is polyethylene glycol oxide, and its consumption is the 0.4% of absolute dried paper pulp gross weight；
4th, copy paper：Paper making pulp is input on paper machine and is manufactured paper with pulp, finished product is obtained Jing after dehydrate.
Gained finished product is homogeneous, tensile strength is higher, hardness is high, good permeability, windage are higher, filter effect is excellent, empty
The detention rate 96% of 0.5 μm of granule in gas, the detention rate of 0.3 μm of granule is 92%.
Embodiment 4：A kind of air filtration paper material containing bacteria cellulose fibre and its preparation
A kind of air filtration paper material, is prepared by the raw material of following percentage by weight：Bacteria cellulose fibre 30%, glass
Fiber 1%, PE fibers 50%, cotton fiber 19%；
A diameter of 50-200nm of described bacteria cellulose fibre, length are 0.1-10 μm；
Described glass fibre length is 10-1000 μm；
Described PE fibre lengths are 1-10mm；
The preparation method of the air filtration paper material is as follows
1st, prepare bacteria cellulose fibre serosity：
Bacterial cellulose particle preparation：
Seed culture medium：In terms of 1000 parts, 11 parts of Semen Maydis powder, 7 parts of analysis for soybean powder, 10 parts of white sugar, 3 parts of yeast extract, pancreas
3 parts of peptone, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes.
Fermentation medium：In terms of 1000 parts, 8 parts of Semen Maydis powder, 20 parts of bean cake powder, 15 parts of white sugar, 2 parts of potassium dihydrogen phosphate,
2 parts of magnesium sulfate, 1 part of calcium chloride, balance of water adjust pH to 6.8, and 121 DEG C sterilize 20 minutes.
It is prepared by seed：Xylose glucose vinegar bar CCTCC AB2040512 slant strains are connected to into seed in superclean bench
In culture medium, 25 DEG C in constant-temperature table, 120rpm cultivate 48 hours, it is standby.
Bacterial cellulose ferments the first stage：Seed is seeded in fermentation tank by 8% inoculum concentration, 160rpm, 28 DEG C
Culture 24 hours；Second stage：By condition of culture be adjusted to 30 DEG C, 150rpm cultivate 48 hours；Phase III：29℃、
110rpm is filtered to remove bacterium solution after cultivating 48 hours and obtains Bacterial cellulose granular materialss.Other processing modes such as embodiment 1.
Cleaned granule is added to Double roll crusher carries out preliminary crushing to diameter less than 1mm, is then added to ultra micro
In colloid mill, in rotating speed 10000rpm, fine grinding 7min under linear velocity 35m/s；It is after 350 mesh filter screen filter pressings, thin needed for obtaining
Fungin fiber slurry；
2nd, it is quantitative：By the bacteria cellulose fibre serosity Jing homogenizer homogenizing of gained, homogenization pressure 40Mpa, time
10min, takes and is dried in right amount, determines fiber contents on dry basis in bacteria cellulose fibre serosity；
3rd, slurrying：According to fiber butt percentage by weight it is：Bacteria cellulose fibre 30%, glass fibre 1%, PE fibers
50%, cotton fiber 19% is added separately to beater, adds dispersant and water, is made into the slurry that mass concentration is 0.8%, dredges
Solution homogenate 25min, while sonic oscillation 40KHZ 15min are obtained paper making pulp；
Described dispersant is polyacrylamide, and its consumption is the 0.5% of absolute dried paper pulp gross weight；
4th, copy paper：Paper making pulp is input on paper machine and is manufactured paper with pulp, finished product is obtained Jing after dehydrate.
Gained finished product is homogeneous, soft, tensile strength is high, hardness is low, good permeability, windage are higher, filter effect pole
It is good, the detention rate 99% of 0.5 μm of granule in air, the detention rate of 0.3 μm of granule is 97%.
5 Bacterial cellulose of embodiment prepares controlled trial 1
Seed culture medium：Glucose 20g/L, peptone 5g/L, potassium dihydrogen phosphate 4.3g, magnesium sulfate 2.5g, Sodium Chloride 3g,
Adjust pH to 6.8；
Fermentation medium：Natural fermentation Sucus Cocois 1000ml, sucrose 40g, yeast extract 10g, potassium dihydrogen phosphate 4.3g, sulfur
Sour magnesium 2.5g, Sodium Chloride 3g adjust pH to 6.8.
Other Bacterial cellulose preparation methoies such as embodiment 1.
6 Bacterial cellulose of embodiment prepares controlled trial 2
Seed culture medium and fermentation medium are prepared with embodiment 1, and with embodiment 1, fermentation culture adopts 7% to seed culture
Inoculum concentration be seeded in fermentation tank, 30 DEG C, 120rpm is filtered to remove bacterium solution and obtains Bacterial cellulose granular material after cultivating 120 hours
Material.Other Bacterial cellulose preparation methoies such as embodiment 1.
Table 1：Each test group fermentation medium cost
| Group | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Culture medium cost (unit/L) | 0.262 | 0.275 | 0.337 | 0.317 | 1.421 | 0.262 |
| Yield (dry weight g/L) | 26.73 | 24.88 | 28.69 | 25.66 | 1.95 | 12.31 |
Claims (9)
1. a kind of air filtration paper material containing Bacterial cellulose, it is characterised in that including the raw material of following percentage by weight：
Bacteria cellulose fibre 5%～30%, glass fibre 1%～8%, chemical industry synthesis fiber 40%～75%, Plant fiber 15%
～45%.
2. a kind of air filtration paper material containing Bacterial cellulose as claimed in claim 1, it is characterised in that the antibacterial
Cellulose fibre is prepared by Bacterial cellulose granular materialss, and described Bacterial cellulose granular materialss preparation method is as follows：
(1) seed culture condition is：Xylose gluconic acid acetobacter is seeded in seed culture medium, 25 DEG C in constant-temperature table,
120-150rpm cultures 40-48 hours obtain seed liquor；
(2) Bacterial cellulose fermenting and producing is controlled using three-stage：
First stage：Seed liquor is seeded in fermentation medium by the inoculum concentration of 5-10%, 26-28 DEG C, 120-180rpm trainings
Support 24 hours；
Second stage：Cultivation temperature is adjusted to into 28-30 DEG C, 150-240rpm is cultivated 48 hours；
Phase III：28-30 DEG C, 80-160rpm continue culture 48 hours, obtain Bacterial cellulose ferment particulate；
(3) by fermentation culture obtain Bacterial cellulose ferment particulate Jing deionized water rinsings, 1%NaOH solution digestions, go from
Sub- water is rinsed to neutrality, and target product is obtained after lyophilization.
3. a kind of air filtration paper material containing Bacterial cellulose as claimed in claim 2, it is characterised in that the culture
Base is specific as follows：
(1) seed culture medium：1000 parts by weight meters, Semen Maydis powder 5-15 parts, analysis for soybean powder 5-12 part, white sugar 5-10 parts, yeast
Extractum 1-3 parts, tryptone 1-3 parts, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water, pH to 6.8,121 DEG C sterilizing 20
Minute；
(2) fermentation medium：1000 parts by weight meters, Semen Maydis powder 8-20 parts, bean cake powder 5-20 parts, white sugar 5-15 parts, phosphoric acid
2 parts of potassium dihydrogen, 2 parts of magnesium sulfate, 1 part of calcium chloride, balance of water, to 6.8,121 DEG C sterilize 20 minutes pH.
4. a kind of air filtration paper material containing Bacterial cellulose as claimed in claim 1, it is characterised in that described is thin
A diameter of 50-200nm of fungin fiber, length are 0.1-10 μm.
5. a kind of air filtration paper material containing Bacterial cellulose as claimed in claim 1, it is characterised in that described glass
Glass fibre length is 10-1000 μm.
6. a kind of air filtration paper material containing Bacterial cellulose as claimed in claim 1, it is characterised in that described change
Work synthetic fibers length is 1-10mm；Described chemical industry synthesis fiber is any of PE fibers, polypropylene fibre or composite fibre
It is a kind of.
7. a kind of air filtration paper material containing Bacterial cellulose as claimed in claim 1, it is characterised in that described plant
Fibres are cotton fiber or flaxen fiber.
8. the preparation method of a kind of air filtration paper material containing Bacterial cellulose described in claim 1, it is characterised in that
It is specific as follows：
(1) prepare bacteria cellulose fibre serosity：
1. the bacteria cellulose fibre is prepared by Bacterial cellulose granular materialss, prepared by described Bacterial cellulose granular materialss
Method is as follows：
Seed culture condition is：Xylose gluconic acid acetobacter is seeded in seed culture medium, 25 DEG C, 120- in constant-temperature table
150rpm cultures 40-48 hours obtain seed liquor；
Bacterial cellulose fermenting and producing is controlled using three-stage：
First stage：Seed liquor is seeded in fermentation medium by the inoculum concentration of 5-10%, 26-28 DEG C, 120-180rpm trainings
Support 24 hours；
Second stage：Cultivation temperature is adjusted to into 28-30 DEG C, 150-240rpm is cultivated 48 hours；
Phase III：28-30 DEG C, 80-160rpm continue culture 48 hours, obtain Bacterial cellulose ferment particulate；
By the Bacterial cellulose ferment particulate Jing deionized water rinsings of fermentation culture acquisition, 1%NaOH solution digestions, deionized water
Rinse to neutrality, after lyophilization, obtain target product.
The culture medium is specific as follows：
Seed culture medium：1000 parts by weight meters, Semen Maydis powder 5-15 parts, analysis for soybean powder 5-12 part, white sugar 5-10 parts, yeast extract
1-3 parts, tryptone 1-3 parts, 3 parts of potassium dihydrogen phosphate, 1 part of magnesium sulfate, balance of water, to 6.8,121 DEG C sterilize 20 minutes pH；
Fermentation medium：1000 parts by weight meters, Semen Maydis powder 8-20 parts, bean cake powder 5-20 parts, white sugar 5-15 parts, biphosphate
2 parts of potassium, 2 parts of magnesium sulfate, 1 part of calcium chloride, balance of water, to 6.8,121 DEG C sterilize 20 minutes pH
2. cleaned granular materialss are added to Double roll crusher carries out preliminary crushing to diameter less than 1mm, is then added to surpass
In idiozome mill, in rotating speed 6000-14000rpm, fine grinding 5-10min under linear velocity 25-40m/s；Through 300-500 mesh filter screens
After filter pressing, required bacteria cellulose fibre serosity is obtained；
(2) it is quantitative：By the bacteria cellulose fibre serosity Jing homogenizer homogenizing of gained, homogenization pressure 40Mpa, time 10min take
Dried in right amount, determined fiber contents on dry basis in bacteria cellulose fibre serosity；
(3) slurrying：According to fiber butt percentage by weight：Bacteria cellulose fibre 5%～30%, glass fibre 1%～8%,
Chemical industry synthesis fiber 40%～75%, Plant fiber 15%～45%, respectively by bacteria cellulose fibre fiber slurry, glass fibers
Dimension, chemical industry synthesis fiber, Plant fiber are added to beater, add dispersant and water, are made into fiber quality concentration for 0.5%-
1.5% slurry, discongests homogenate 25-45min, while sonic oscillation 10-30min is obtained paper making pulp；In described refiner
Install sonic oscillation device additional, frequency is 40KHZ；Described discongests homogenization process with sonic oscillation process while carrying out；
(4) copy paper：Paper making pulp is input on paper machine and is manufactured paper with pulp, finished product is obtained Jing after dehydrate moisture is less than 5%.
Described dispersant is：Polyethylene glycol oxide or polyacrylamide；Its consumption is：The 0.1%- of absolute dried paper pulp gross weight
0.6%.
9. the application of a kind of air filtration paper material containing Bacterial cellulose described in claim 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106930140A (en) * | 2017-04-27 | 2017-07-07 | 北京观澜科技有限公司 | A kind of greaseproof and its production method |
| CN107126763A (en) * | 2017-06-12 | 2017-09-05 | 四川建源节能科技有限公司 | A kind of fiber filter material for VMC |
| CN107158965A (en) * | 2017-06-12 | 2017-09-15 | 四川建源节能科技有限公司 | A kind of air filting material |
| CN109603308A (en) * | 2019-01-28 | 2019-04-12 | 常州市日臣艺术装饰材料有限公司 | A kind of preparation method of ceramic filter plate |
| CN109603308B (en) * | 2019-01-28 | 2021-05-14 | 蔡盼 | Preparation method of ceramic filter plate |
| CN112191051A (en) * | 2020-11-19 | 2021-01-08 | 河南科高新材料有限公司 | Static-free mask filtering membrane and preparation method thereof |
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| Publication number | Publication date |
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| CN106582113B (en) | 2018-10-30 |
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