CN106087108A - Antistatic polyester brocade composite superfine fibre with ultrafiltration antibacterial film and production method - Google Patents
Antistatic polyester brocade composite superfine fibre with ultrafiltration antibacterial film and production method Download PDFInfo
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- CN106087108A CN106087108A CN201610534080.8A CN201610534080A CN106087108A CN 106087108 A CN106087108 A CN 106087108A CN 201610534080 A CN201610534080 A CN 201610534080A CN 106087108 A CN106087108 A CN 106087108A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/48—Antimicrobial properties
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Filtering Materials (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses Antistatic polyester brocade composite superfine fibre and the production method of a kind of band ultrafiltration antibacterial film, it is with ultra-fine polyester fiber as heart yearn, is coated with Hollow Fiber Ultrafiltration antibacterial film and nylon fibre layer successively at heart yearn outer layer；Described Hollow Fiber Ultrafiltration antibacterial film is the hollow fiber ultrafiltration membrane containing anti-biotic material, is provided with anti-electrostatic nano powder body material in the nylon fibre layer of outer cladding.By the Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film obtained by the production method of the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film of present invention offer, by experimental test, its antibiotic rate reaches more than 99%, and its surface resistivity is 107‑109Between, the anti-biotic material that the present invention provides, improve hollow fiber ultrafiltration membrane to the interception capacity of antibacterial and sterilizing ability, so that the anti-microbial property of hollow fiber ultrafiltration membrane is more preferable, thus can realize polyester-nylon composite superfine fibre not only has antibacterial ability but also have the multifunctionality of antistatic effect.
Description
Technical field
The Antistatic polyester brocade composite superfine that the present invention relates to the production technology of a kind of fiber, particularly band ultrafiltration antibacterial film is fine
Dimension and production method.
Background technology
At present at polyester-nylon composite superfine fibre, be all use ultra-fine polyester fiber and ultra-fine nylon fiber simply to twist and
Become, the composite fibre of this simple twisting, due to the difference of fibre property, bring certain difficulty to post processing, as uniformly
Colouring problem etc., but such as use covered composite yarn, then in the production of functional polyester-nylon composite superfine fibre, again due to function
Property material addition, the wire-drawing performance of these fibrous materials can be changed, give cladding realization bring certain difficulty.
Summary of the invention
The invention aims to solve above-mentioned the deficiencies in the prior art and provide that a kind of technique is simple, it is convenient to realize,
Antistatic effect is good, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film of good anti-bacterial effect and production method.
To achieve these goals, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film designed by the present invention,
Including superfine polyester-nylon complex fiber, hollow fiber ultrafiltration antibacterial film and nylon fibre, wherein ultra-fine polyester fiber is heart yearn, doughnut
Ultrafiltration antibacterial film is coated on outside ultra-fine polyester fiber, and nylon fibre layer is coated on outside Hollow Fiber Ultrafiltration antibacterial film；
Described Hollow Fiber Ultrafiltration antibacterial film is the hollow fiber ultrafiltration membrane containing anti-biotic material, wherein hollow fiber ultrafiltration membrane and
The weight of anti-biotic material be hollow fiber ultrafiltration membrane be 80 parts to 90 parts, anti-biotic material is 10 parts to 20 parts；Described anti-
Bacterium material is by citric acid, deionized water, dehydrated alcohol, tetra-n-butyl titanate, europium nitrate, silver nitrate, Yttrium trinitrate, ammonia, agar
Powder is prepared；Its mass fraction proportioning is citric acid 5 parts, deionized water 65 parts, dehydrated alcohol 15 parts, tetra-n-butyl titanate 4
Part, europium nitrate 0.5 part, silver nitrate 0.7 part, Yttrium trinitrate 0.8 part, ammonia 4 parts, agar powder 5 parts；Wherein with ethanol dilution metatitanic acid four
N-butyl makes it preferably obtain the citric acid solution of titanium with aqueous citric acid solution complexation, utilizes silver nitrate fine to realize hollow
The antibiotic property of dimension ultrafilter membrane, utilizes the europium nitrate containing rare earth element and Yttrium trinitrate to improve the antibacterial of hollow fiber ultrafiltration membrane
Property, wherein ammonia is for regulating the pH value of reaction system, agar powder as gel make metallic element preferably with citric acid
Root carries out complexation.
Being provided with anti-electrostatic nano powder body material in described nylon fibre layer, proportioning the most by weight is 5 parts to 10 parts
Silver oxide nano-powder, 90 parts to 95 part chinlons；Wherein utilize silver oxide nano-powder to improve the antistatic behaviour of nylon fibre.
So that silver oxide nano-powder material can preferably be fused in nylon fibre, anti-biotic material can be more preferable
Be fused in hollow fiber ultrafiltration membrane, described silver oxide nano-powder material and the particle diameter D of anti-biotic material90＜ 0.1 μm.
The core line diameter of described superfine polyamide fiber controls at 0.1 micron to 1.0 micron, the composite fibre diameter after cladding
Control at 1 micron to 4 micron.
Here, described superfine fibre refers to fiber number 0.3 denier (diameter 5 microns) fiber below.
The production method of the Antistatic polyester brocade composite superfine fibre of a kind of band ultrafiltration antibacterial film, comprises the following steps:
First prepare described anti-biotic material, weigh 5 parts of citric acids and be dissolved in the deionized water of 65 parts, be slowly added dropwise with 15 parts anhydrous
4 parts of tetra-n-butyl titanates of ethanol dilution, add 0.5 part of europium nitrate, 0.7 part of silver nitrate, 0.8 part of Yttrium trinitrate, 4 parts of ammonia
With 5 parts of agar powders, being stirred vigorously reaction 3h at 70 DEG C, the gelinite obtained after cooling calcines 3h at 1000 DEG C, finally incites somebody to action
To anti-biotic material be ground, its mid score is weight portion；
Again the anti-biotic material that described weight portion is 10 parts to 20 parts is joined the doughnut that weight portion is 80 parts to 90 parts to surpass
In the melt of filter membrane, after anti-biotic material is evenly distributed in the melt of hollow fiber ultrafiltration membrane by the time, then by cladding spinning
Hollow Fiber Ultrafiltration antibacterial film is coated on outside the heart yearn of ultra-fine polyester fiber；
Then take the diameter of particle that has been ground to that weight portion is 5 parts to 10 parts and reach D90The oxygen of the nanometer grade powder of ＜ 0.1 μm
Change silver nanoparticle powder body material join weight portion be 90 parts in the melt of 95 parts of chinlons, silver oxide nano-powder material exists by the time
After the melt of chinlon is uniformly distributed, by cladding spinning, the nylon fibre layer being mixed with silver oxide nano-powder material is coated on
It is coated with outside the ultra-fine polyester fiber of Hollow Fiber Ultrafiltration antibacterial film, has formed composite fibre；Wherein ultra-fine polyester fiber
Heart yearn spinning temperature controls at 290 DEG C, and the spinning temperature of Hollow Fiber Ultrafiltration antibacterial film controls at 250 DEG C, nylon fibre layer
Spinning temperature controls at 260 DEG C；The core line diameter controlling superfine polyamide fiber in drawing process controls at 0.1 micron to 1.0
Micron, the composite fibre diameter control after cladding is at 1 micron to 4 micron.
By the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present invention provides, by internal outer cladding structure
Setting, composite fibre had both had the good fiber characteristic of terylene, had again a good fiber characteristic of chinlon, and had concurrently good
Antibacterial functions and anti-static function；By using representative anti-microbial property method of testing GB15979-2002 standard to survey
Examination, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present invention provides, its antibiotic rate reaches more than 99%.By reality
Test tries, and its surface resistivity is 107-109Between.In polyester-nylon composite superfine fibre, introduce hollow fiber ultrafiltration fibrous membrane, can improve
The hydrophilic of polyester-nylon composite superfine fibre, owing to the addition of anti-biotic material, improves antibacterial and retains and sterilizing ability, can be by thin
Nearly 100% ground such as bacterium, bacterial debris, the virus small float similar with antibacterial size, colloid, thermal source retain.The most antibacterial
Material uses gel complexometry to combine with combustion method and prepares nanometer grade powder, mixes rare earth elements europium and yttrium in raw material,
In conjunction with silver ion, further increase antibacterial action.In nylon fibre, with the addition of silver oxide nano-powder material equally, then carry
The high antistatic property of nylon fibre, thus achieves and not only has antibiotic property but also have antistatic behaviour multi-functional that to wash brocade compound
Superfine fibre.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
The Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film that the present embodiment provides, including superfine polyester-nylon complex fiber,
Hollow fiber ultrafiltration membrane and nylon fibre, wherein with ultra-fine polyester fiber as heart yearn, first outer cladding Hollow Fiber Ultrafiltration antibacterial film
Layer, is coated on the nylon fibre layer being mixed with silver oxide nano-powder material by cladding spinning and has been coated with doughnut and surpasses
Outside the ultra-fine polyester fiber of filter antibacterial film；The weight of chinlon and silver oxide nano-powder material be chinlon be 90 parts, oxygen
Changing silver nanoparticle powder body material 10 parts, anti-biotic material is anti-biotic material 20 parts with the weight of hollow fiber ultrafiltration membrane, hollow
Fiber ultrafiltration membrane 80 parts, described nano-powder material is that diameter of particle reaches D90The nanometer grade powder of ＜ 0.1 μm；
The production method of the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, above-mentioned including using
With the Antistatic polyester brocade composite superfine fibre of ultrafiltration antibacterial film, first prepare anti-biotic material, 5 parts of citric acids are dissolved in 65 parts go
In ionized water, 4 parts of tetra-n-butyl titanates that dropping dilutes with 15 parts of dehydrated alcohol, add 0.5 part of europium nitrate, 0.7 part of nitre
Acid silver, 0.8 part of Yttrium trinitrate, 4 parts of ammonia and 5 parts of agar powders, be stirred vigorously reaction 3h, obtain gelinite and exist after cooling at 70 DEG C
Calcine 3h at 1000 DEG C, finally the anti-biotic material obtained is ground to diameter of particle and reaches D90The nanometer grade powder of ＜ 0.1 μm, then
The antimicrobial nano powder body material that weight portion is 20 parts is joined in the melt that weight portion is 80 parts of hollow fiber ultrafiltration membrane, antibacterial
After nano-powder material is uniformly distributed in the melt of hollow fiber ultrafiltration membrane, by cladding spinning, Hollow Fiber Ultrafiltration is antibacterial
Film is coated on outside the heart yearn of ultra-fine polyester fiber, then silver oxide nano-powder material is ground to diameter of particle reaches D90＜ 0.1 μ
The nanometer grade powder of m, joins, by the silver oxide nano-powder material that weight portion is 10 parts, the melt that weight portion is 90 parts of chinlons
In, after silver oxide nano-powder material is uniformly distributed in the melt of chinlon by the time, silver oxide will be mixed with by cladding spinning and receive
The nylon fibre layer of rice powder body material is coated on outside the ultra-fine polyester fiber being coated with Hollow Fiber Ultrafiltration antibacterial film, is formed
Composite fibre；Wherein the heart yearn spinning temperature of ultra-fine polyester fiber controls at 290 DEG C, the spinning temperature of Hollow Fiber Ultrafiltration antibacterial film
Degree controls at 250 DEG C.The core line diameter controlling superfine polyamide fiber in drawing process controls at 0.1 micron to 1.0 micron, bag
Composite fibre diameter control after covering is at 1 micron to 4 micron, and the Antistatic polyester brocade composite superfine obtaining band ultrafiltration antibacterial film is fine
Dimension.
By test, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, by experiment
Test, its antibiotic rate reaches more than 99.5%, and its surface resistivity is 107, fibre strength is 7.5cN/dtex, Hollow Fiber Ultrafiltration
Antibacterial film can be smoothly in the heart yearn outer cladding wire drawing of ultra-fine polyester fiber, and chinlon can be smoothly outside Hollow Fiber Ultrafiltration antibacterial film layer
Cladding wire drawing, a diameter of 4 microns of the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film after being combined.
Embodiment 2:
The Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its component is same as in Example 1, tool
Body difference is that the weight of chinlon and silver oxide nano-powder material is: chinlon is 95 parts, silver oxide nano-powder material
Material is 5 parts；By test, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its antibiotic rate
Reaching more than 99.5%, its surface resistivity is 109, fibre strength is 7.5cN/dtex, and Hollow Fiber Ultrafiltration antibacterial film can exist smoothly
The heart yearn outer cladding wire drawing of ultra-fine polyester fiber, chinlon can be compound smoothly in Hollow Fiber Ultrafiltration antibacterial film layer outer cladding wire drawing
After a diameter of 4 microns of the Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film.
Embodiment 3:
The Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its component is same as in Example 1, tool
Body difference is that the weight of chinlon and silver oxide nano-powder material is: chinlon is 93 parts, silver oxide nano-powder material
Material is 7 parts；By test, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its antibiotic rate
Reaching more than 99.5%, its surface resistivity is 108, fibre strength is 7.5cN/dtex, and Hollow Fiber Ultrafiltration antibacterial film can exist smoothly
The heart yearn outer cladding wire drawing of ultra-fine polyester fiber, chinlon can be compound smoothly in Hollow Fiber Ultrafiltration antibacterial film layer outer cladding wire drawing
After a diameter of 4 microns of the Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film.
Embodiment 4:
The Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its component is same as in Example 1, tool
Body difference is that anti-biotic material and hollow fiber ultrafiltration membrane weight are: hollow fiber ultrafiltration membrane is 90 parts, anti-biotic material
It it is 10 parts；The weight of chinlon and silver oxide nano-powder material is: chinlon is 95 parts, and silver oxide nano-powder material is
5 parts；By test, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its antibiotic rate reaches 99%
Above, its surface resistivity is 109, fibre strength is 7.5cN/dtex, and Hollow Fiber Ultrafiltration antibacterial film can be washed ultra-fine smoothly
The heart yearn outer cladding wire drawing of synthetic fibre fiber, chinlon can be smoothly at Hollow Fiber Ultrafiltration antibacterial film layer outer cladding wire drawing, the band after being combined
A diameter of 4 microns of the Antistatic polyester brocade composite superfine fibre of ultrafiltration antibacterial film.
Embodiment 5:
The Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its component is same as in Example 1, tool
Body difference is that anti-biotic material and hollow fiber ultrafiltration membrane weight are: hollow fiber ultrafiltration membrane is 85 parts, anti-biotic material
It it is 15 parts；The weight of chinlon and silver oxide nano-powder material is: chinlon is 95 parts, and silver oxide nano-powder material is
5 parts；By test, the Antistatic polyester brocade composite superfine fibre of the band ultrafiltration antibacterial film that the present embodiment provides, its antibiotic rate reaches
More than 99.3%, its surface resistivity is 109, fibre strength is 7.5cN/dtex, and Hollow Fiber Ultrafiltration antibacterial film can be smoothly super
The heart yearn outer cladding wire drawing of thin polyster fibre, chinlon can be smoothly in Hollow Fiber Ultrafiltration antibacterial film layer outer cladding wire drawing, after being combined
A diameter of 4 microns of the Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film.
Claims (4)
1. an Antistatic polyester brocade composite superfine fibre for band ultrafiltration antibacterial film, it includes superfine polyester-nylon complex fiber, its feature
The superfine polyamide fiber being described is with ultra-fine polyester fiber as heart yearn, is coated with Hollow Fiber Ultrafiltration successively at heart yearn outer layer and resists
Mycoderma and nylon fibre layer, be provided with anti-electrostatic nano powder body material in described nylon fibre layer, described Hollow Fiber Ultrafiltration is antibacterial
Film is the hollow fiber ultrafiltration membrane containing anti-biotic material, during wherein the weight of hollow fiber ultrafiltration membrane and anti-biotic material is
Fibre ultrafiltration film is 80 parts to 90 parts, and anti-biotic material is 10 parts to 20 parts, and wherein anti-biotic material includes citric acid, deionization
Water, dehydrated alcohol, tetra-n-butyl titanate, europium nitrate, silver nitrate, Yttrium trinitrate, ammonia, agar powder；According to the mass fraction: citric acid
5 parts, deionized water 65 parts, dehydrated alcohol 15 parts, tetra-n-butyl titanate 4 parts, europium nitrate 0.5 part, silver nitrate 0.7 part, Yttrium trinitrate
0.8 part, ammonia 4 parts, agar powder 5 parts.
The Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film the most according to claim 1, is characterized in that described brocade
The anti-electrostatic nano powder body material that synthetic fibre fibrous layer is used is silver oxide nano-powder material, in described nylon fibre layer chinlon and
The weight of silver oxide nano-powder material be chinlon be 90 parts to 95 parts, silver oxide nano-powder material 5 parts to 10 parts.
3. a production method for the Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film as claimed in claim 1 or 2,
It is characterized in that described Hollow Fiber Ultrafiltration antibacterial film is to be ground to diameter of particle by 10 parts to 20 parts to reach D90＜ 0.1 μm
In the melt of the hollow fiber ultrafiltration membrane that the anti-biotic material of nanometer grade powder joins 80 parts to 90 parts, by the time anti-biotic material in
After the melt of fibre ultrafiltration film is evenly distributed, then by cladding spinning, Hollow Fiber Ultrafiltration antibacterial film is coated on ultra-fine
Outside the heart yearn of polyster fibre, then take the diameter of particle that has been ground to that weight portion is 5 parts to 10 parts and reach D90The nanometer of ＜ 0.1 μm
The silver oxide nano-powder material of level powder body join weight portion be 90 parts in the melt of 95 parts of chinlons, nano phase ag_2 o by the time
After powder body material is uniformly distributed in the melt of chinlon, by cladding spinning by fine for the chinlon being mixed with silver oxide nano-powder material
Dimension layer is coated on outside the ultra-fine polyester fiber being coated with Hollow Fiber Ultrafiltration antibacterial film, forms composite fibre；The most ultra-fine
The heart yearn spinning temperature of polyster fibre controls at 290 DEG C, and the spinning temperature of Hollow Fiber Ultrafiltration antibacterial film controls at 250 DEG C, brocade
The fibrolaminar spinning temperature of synthetic fibre controls at 260 DEG C.
The production method of the Antistatic polyester brocade composite superfine fibre of band ultrafiltration antibacterial film the most according to claim 3, it is special
Levy be described anti-biotic material be that 5 parts of citric acids are dissolved in the deionized water of 65 parts, dropping dilute with 15 parts of dehydrated alcohol 4
Part tetra-n-butyl titanate, adds 0.5 part of europium nitrate, 0.7 part of silver nitrate, 0.8 part of Yttrium trinitrate, 4 parts of ammonia and 5 parts of agar powders,
React 3h at 70 DEG C, cool down calcining 3h at latter 1000 DEG C, finally the anti-biotic material obtained is ground to diameter of particle and reaches D90＜
The nanometer grade powder of 0.1 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111085111A (en) * | 2019-12-27 | 2020-05-01 | 天津膜天膜科技股份有限公司 | Rare earth complex acid salt antibacterial agent, antibacterial modified hollow fiber membrane and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085111A (en) * | 2019-12-27 | 2020-05-01 | 天津膜天膜科技股份有限公司 | Rare earth complex acid salt antibacterial agent, antibacterial modified hollow fiber membrane and preparation method thereof |
| CN111085111B (en) * | 2019-12-27 | 2022-05-17 | 天津膜天膜科技股份有限公司 | Rare earth complex acid salt antibacterial agent, antibacterial modified hollow fiber membrane and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106087108B (en) | 2018-09-28 |
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