CN108785725A - A kind of nano silver/shape-memory alloy wire composite medical fabric and preparation method thereof - Google Patents
A kind of nano silver/shape-memory alloy wire composite medical fabric and preparation method thereof Download PDFInfo
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- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
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- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
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- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
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- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
- A61L2300/104—Silver, e.g. silver sulfadiazine
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- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
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- A61L2400/00—Materials characterised by their function or physical properties
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- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/16—Materials with shape-memory or superelastic properties
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Abstract
A kind of nano silver/shape-memory alloy wire composite medical fabric of present invention offer and preparation method thereof, includes the following steps：High molecular weight PVP is added in ethylene glycol solution, is uniformly mixed, the ethylene glycol solution containing silver nitrate is added, after heating oil bath reaction, is stood overnight, is taken out sediment washing, obtain nano silver wire；Under nitrogen protection, under cryogenic by the methanol solution of diethylenetriamine and methyl acrylate, after mixing, shape-memory alloy wire is added, after removing methanol, heat up Depressor response, obtains the shape-memory alloy wire of grafting ultrabranching polyamide；It after the etched pretreatment of nano silver wire, is scattered in ethanol solution, the shape-memory alloy wire of grafting ultrabranching polyamide is added, nano silver/shape-memory alloy wire composite material is obtained by the reaction；Modified cotton blended fiber is prepared by nano silver/shape-memory alloy wire composite material and cotton fiber are blended, then is used as raw material with unmodified cotton fiber, is weaved and is obtained nano silver/shape-memory alloy wire composite medical fabric.
Description
Technical field
The invention belongs to Tensile properties technical fields, and in particular to a kind of nano silver/shape-memory alloy wire is compound
The preparation method of Medical face fabric.
Background technology
Bacterium is to cause people's disease important source, invades and harasses people's lives with always carving, their mass propagation
People's health can be threatened, and bacterium can also destroy material internal structure, indirect shadow during the breeding of material surface
Ring the performance that material itself has.Excellent anti-biotic material not only has apparent antibacterial effect, biofacies to pathogenic microorganisms
Capacitive is good, and without any toxicity and side effects, the rate of recovery is good, and has good mechanical strength and flexibility, and excellent anti-biotic material is not only
Can be that the wounded creates preferably recovery environment, moreover it is possible to ensure the daily general level of the health of people.
Nano material refer to material in three dimensions at least it is one-dimensional in nanoscale range or by them as base
The material that this unit is constituted.It can be divided into three kinds according to the dimension of nano material：Zero dimension, peacekeeping two dimension, wherein one-dimensional
Refer to material has bidimensional to be in nanoscale in space three-dimensional scale, for example, nanometer rods, nano wire, nanobelt, nanometer hammer,
Nanotube etc., nano-material not only have skin effect, small-size effect, quantum size effect and the maroscopic quantity of nano material
Sub- tunnel-effect, the special nature also having with material itself.Silver-based nano wire has compared with other metal nano materials
Pattern easy-regulating, excellent antibiotic property and stronger surface plasma resonance effect have application well in field of medicaments
Foreground.
A kind of nano silver antibacterial fabric disclosed in Chinese patent CN 103015166B and preparation method thereof, this method is to knit
Object will contain Zinc oxide nanoparticle as substrate by fabric after the hydrophilic treateds such as oxygen plasma or UV ozone processing
Solution coating to fabric on, fabric is immersed in alkaline mixed aqueous solution, heating reaction, fabric surface formed oxidation
Then Fabric composites containing zinc oxide nanowire is immersed in silver nitrate solution by zinc nano wire, pass through photoreduction silver
Silver ion is strapped in zinc oxide surface by ion using the conduction band electron and valence band hole for generating photoproduction in zinc oxide nanowire
Electron reduction, on zinc oxide nanowire obtain small size silver nano-grain, obtain nano silver antibacterial fabric, the nano silver
Antibiotic fabric can be used for single-point water process to reduce the content of microorganism in water, be used for medical dressing or medical textile.China
Cellulose based on graphene/nano silver wire/silk magnetic porous composite material disclosed in patent CN 107603240A, will gather
Dopamine modified cellulose solution is added in the fibroin solutions containing molysite, and after mixing, vacuum freeze drying obtains
Cellulose/silk magnetic porous composite material, then by cellulose/silk magnetic porous composite material scissors to amine-terminated hyperbranced
Fluidized polymer is modified in nano silver wire aqueous solution, repeatedly washing drying, and then dipping takes out with graphene oxide water solution, water
Drying is washed, obtains composite porous containing one layer of nano silver wire/graphene oxide layer, repeated impregnations technique is based on
The cellulose of graphene/nano silver wire/silk magnetic porous composite material.By the above-mentioned prior art it is found that by the way that silver-based is received
Rice noodles are combined with other materials, and the comprehensive performance of medical dressing can be improved, but currently based on silver-based nano wire and shape memory
Application of the Material cladding in terms of medical dressing is actually rare.
Invention content
The technical problem to be solved in the present invention is to provide a kind of nano silver/shape-memory alloy wire composite medical fabric and its
Preparation method, after the nano silver wire that surface micro etch is handled is reacted with the shape-memory alloy wire of grafting ultrabranching polyamide,
The nano silver being prepared/shape-memory alloy wire composite material for cotton fiber modification arrange in, then with unmodified arrangement
Cotton fiber compound composite medical fabric is prepared.Composite medical fabric prepared by the present invention has excellent antibiotic property, power
Performance, flexibility and shape memory are learned, comprehensive performance is good, and it is more difficult to be particularly well suited as medical dressing, especially joint etc.
The protecting wound surface of processing.
In order to solve the above technical problems, the technical scheme is that：
A kind of preparation method of nano silver/shape-memory alloy wire composite medical fabric, includes the following steps：
(1) high molecular weight PVP is added in ethylene glycol solution, is uniformly mixed, the ethylene glycol solution containing silver nitrate is added,
1-2h is reacted in oil bath at 160 DEG C, stands overnight, and takes out sediment, takes out remaining PVP with no water washing, obtains silver nanoparticle
Line；
(2) under nitrogen protection, under cryogenic by the methanol solution of diethylenetriamine and methyl acrylate, mixing is equal
After even, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h, obtains being grafted hyperbranched polyamides
The shape-memory alloy wire of amine；
(3) it after the etched pretreatment of nano silver wire for preparing step (1), is scattered in ethanol solution, step (2) is added
The shape-memory alloy wire of the grafting ultrabranching polyamide of preparation, after being stirred to react, removes solvent, obtains nano silver/shape note
Recall alloy wire composite material；
(4) nano silver/shape-memory alloy wire composite material prepared by step (3) is changed with blended be prepared of cotton fiber
Property cotton blended fiber, regard modified cotton blended fiber as raw material with unmodified cotton fiber, weave and obtain nano silver/shape memory
B alloy wire composite medical fabric.
As a preferred embodiment of the above technical solution, in the step (1), the molecular weight of high molecular weight PVP is 30000-
The mass ratio of 35000, high molecular weight PVP and silver nitrate is 5-6:1.
As a preferred embodiment of the above technical solution, in the step (1), the draw ratio of nano silver wire is 180-200, a diameter of
80-120nm。
As a preferred embodiment of the above technical solution, in the step (2), the mass ratio of diethylenetriamine and methyl acrylate is
50-53:40-45。
As a preferred embodiment of the above technical solution, in the step (2), the temperature of cryogenic conditions is 0-10 DEG C, time 1-
3h。
As a preferred embodiment of the above technical solution, in the step (2), it is grafted the shape-memory alloy wire of ultrabranching polyamide
The content of middle ultrabranching polyamide is not less than 2.5wt%.
As a preferred embodiment of the above technical solution, in the step (3), etching pretreatment is ferric nitrate etching processing or swashs
Light micro etch is handled.
As a preferred embodiment of the above technical solution, in the step (3), in nano silver/shape-memory alloy wire composite material
The content of nano silver is 3-8wt%.
As a preferred embodiment of the above technical solution, in the step (4), nano silver/shape memory in modified cotton blended fiber
The content of alloy wire composite material is 4-12wt%.
Nanometer prepared by the preparation method of nano silver/shape-memory alloy wire composite medical fabric is also claimed in the present invention
Silver/shape-memory alloy wire composite medical fabric.
Compared with prior art, the invention has the advantages that：
(1) modified material of nano silver/shape-memory alloy wire composite medical fabric prepared by the present invention is nano silver/shape
Shape memory alloys wire composite material, nano silver prepared by the present invention/shape-memory alloy wire composite material will be at the micro etch of surface
The nano silver wire of reason is reacted with the shape-memory alloy wire of grafting ultrabranching polyamide to be prepared, and the PVP of high molecular weight is selected
The reunion of nano silver is prevented, the structure and regularity of nano silver wire can be effectively controlled, keeps the draw ratio of nano silver wire big, size
Stablize, the frictional force that micro etch processing improves nano silver wire surface then carried out to nano silver wire again, improve nano silver wire and
Shape-memory alloy wire binding site and binding force, and ultrabranching polyamide has unique internal cavity structures, is more advantageous to silver
Nano wire is attached to the inside of ultrabranching polyamide, and the good dispersion of ultrabranching polyamide, is conducive to improve nano silver/shape
The surface property of memorial alloy wire composite material, is preferably scattered in solvent, and carrying out uniform attachment to cotton fiber is modified, and prevents
The only reunion of nano silver/shape-memory alloy wire composite material improves the stability and service life of modified cotton fiber performance, after
And mechanical property, flexibility, dimensional stability, antibiotic property that composite medical faces are improved, also there is certain automatically cleaning to imitate
Fruit, using effect is good, and service life is long.
(2) preparation method of the invention is simple, does not use expensive equipment, the requirement to equipment is low, at low cost, controllably
Property it is good, be different from simply nano wire is mixed with shape-memory alloy wire, physical modification and chemical modification gimmick are combined,
The combination effect for improving nano silver wire and shape-memory alloy wire, makes nano wire be evenly distributed with shape-memory alloy wire, in conjunction with
Closely, and the dispersibility on surface is more preferable, assigns composite medical fabric more excellent performance afterwards, is particularly well suited as medical
The protecting wound surface difficult to deal with such as dressing, especially joint.
Specific implementation mode
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1：
(1) the high molecular weight PVP that molecular weight is 30000 is added in ethylene glycol solution, is uniformly mixed, according to macromolecule
The mass ratio for measuring PVP and silver nitrate is 5:1, the ethylene glycol solution containing silver nitrate is added, oil bath reaction 1h, stands at 160 DEG C
Overnight, sediment is taken out, remaining PVP is taken out with no water washing, it is 180 to obtain draw ratio, the nano silver wire of a diameter of 80nm.
(2) under nitrogen protection, it is 50 by mass ratio:40 diethylenetriamine and the methanol solution of methyl acrylate are 0
Under DEG C cryogenic conditions, after mixing 1h, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h is obtained
To the shape-memory alloy wire of grafting ultrabranching polyamide, wherein be grafted in the shape-memory alloy wire of ultrabranching polyamide and surpass
The content of branched polyamide is 2.5wt%.
(3) nano silver wire is scattered in after ferric nitrate etching processing in ethanol solution, grafting ultrabranching polyamide is added
Shape-memory alloy wire, after being stirred to react, remove solvent, obtain nano silver/shape-memory alloy wire composite material, wherein
The content of nano silver is 3wt% in nano silver/shape-memory alloy wire composite material.
(4) by nano silver/shape-memory alloy wire composite material with cotton fiber is blended that modified cotton blended fiber is prepared,
Wherein, the content of nano silver/shape-memory alloy wire composite material is 4wt% in modified cotton blended fiber, by modified cotton blend
For fiber with unmodified cotton fiber as raw material, weaving obtains nano silver/shape-memory alloy wire composite medical fabric.
Embodiment 2：
(1) the high molecular weight PVP that molecular weight is 35000 is added in ethylene glycol solution, is uniformly mixed, according to macromolecule
The mass ratio for measuring PVP and silver nitrate is 6:1, the ethylene glycol solution containing silver nitrate is added, oil bath reaction 2h, stands at 160 DEG C
Overnight, sediment is taken out, remaining PVP is taken out with no water washing, it is 200 to obtain draw ratio, the silver nanoparticle of a diameter of 120nm
Line.
(2) under nitrogen protection, it is 53 by mass ratio:45 diethylenetriamine and the methanol solution of methyl acrylate are 10
Under DEG C cryogenic conditions, after mixing 3h, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h is obtained
To the shape-memory alloy wire of grafting ultrabranching polyamide, wherein be grafted in the shape-memory alloy wire of ultrabranching polyamide and surpass
The content of branched polyamide is 5.8wt%.
(3) nano silver wire is scattered in after laser micro etch processing in ethanol solution, grafting ultrabranching polyamide is added
Shape-memory alloy wire, after being stirred to react, remove solvent, obtain nano silver/shape-memory alloy wire composite material, wherein
The content of nano silver is 8wt% in nano silver/shape-memory alloy wire composite material.
(4) by nano silver/shape-memory alloy wire composite material with cotton fiber is blended that modified cotton blended fiber is prepared,
Wherein, the content of nano silver/shape-memory alloy wire composite material is 12wt% in modified cotton blended fiber, by modified cotton blend
For fiber with unmodified cotton fiber as raw material, weaving obtains nano silver/shape-memory alloy wire composite medical fabric.
Embodiment 3：
(1) the high molecular weight PVP that molecular weight is 33000 is added in ethylene glycol solution, is uniformly mixed, according to macromolecule
The mass ratio for measuring PVP and silver nitrate is 5.3:1, the ethylene glycol solution containing silver nitrate is added, the oil bath reaction 1.3h at 160 DEG C,
It stands overnight, takes out sediment, remaining PVP is taken out with no water washing, it is 185 to obtain draw ratio, the Yin Na of a diameter of 100nm
Rice noodles.
(2) under nitrogen protection, it is 52 by mass ratio:43 diethylenetriamine and the methanol solution of methyl acrylate are 4
Under DEG C cryogenic conditions, after mixing 1.5h, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h,
Obtain the shape-memory alloy wire of grafting ultrabranching polyamide, wherein be grafted in the shape-memory alloy wire of ultrabranching polyamide
The content of ultrabranching polyamide is 3.5wt%.
(3) nano silver wire is scattered in after ferric nitrate etching processing in ethanol solution, grafting ultrabranching polyamide is added
Shape-memory alloy wire, after being stirred to react, remove solvent, obtain nano silver/shape-memory alloy wire composite material, wherein
The content of nano silver is 4.5wt% in nano silver/shape-memory alloy wire composite material.
(4) by nano silver/shape-memory alloy wire composite material with cotton fiber is blended that modified cotton blended fiber is prepared,
Wherein, the content of nano silver/shape-memory alloy wire composite material is 8wt% in modified cotton blended fiber, by modified cotton blend
For fiber with unmodified cotton fiber as raw material, weaving obtains nano silver/shape-memory alloy wire composite medical fabric.
Embodiment 4：
(1) the high molecular weight PVP that molecular weight is 31500 is added in ethylene glycol solution, is uniformly mixed, according to macromolecule
The mass ratio for measuring PVP and silver nitrate is 5.2:1, the ethylene glycol solution containing silver nitrate is added, the oil bath reaction 1.5h at 160 DEG C,
It stands overnight, takes out sediment, remaining PVP is taken out with no water washing, it is 185 to obtain draw ratio, the Yin Na of a diameter of 100nm
Rice noodles.
(2) under nitrogen protection, it is 52 by mass ratio:43.5 diethylenetriamine and the methanol solution of methyl acrylate exist
Under 8 DEG C of cryogenic conditions, after mixing 1.5h, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response
4h obtains the shape-memory alloy wire of grafting ultrabranching polyamide, wherein be grafted the shape-memory alloy wire of ultrabranching polyamide
The content of middle ultrabranching polyamide is 4wt%.
(3) nano silver wire is scattered in after ferric nitrate etching processing in ethanol solution, grafting ultrabranching polyamide is added
Shape-memory alloy wire, after being stirred to react, remove solvent, obtain nano silver/shape-memory alloy wire composite material, wherein
The content of nano silver is 6wt% in nano silver/shape-memory alloy wire composite material.
(4) by nano silver/shape-memory alloy wire composite material with cotton fiber is blended that modified cotton blended fiber is prepared,
Wherein, the content of nano silver/shape-memory alloy wire composite material is 10.5wt% in modified cotton blended fiber, and modified cotton is mixed
Fiber is spun with unmodified cotton fiber as raw material, weaving obtains nano silver/shape-memory alloy wire composite medical fabric.
Embodiment 5：
(1) the high molecular weight PVP that molecular weight is 30000 is added in ethylene glycol solution, is uniformly mixed, according to macromolecule
The mass ratio for measuring PVP and silver nitrate is 6:1, the ethylene glycol solution containing silver nitrate is added, oil bath reaction 1-2h, quiet at 160 DEG C
It sets overnight, takes out sediment, remaining PVP is taken out with no water washing, it is 195 to obtain draw ratio, the silver nanoparticle of a diameter of 115nm
Line.
(2) under nitrogen protection, it is 50 by mass ratio:45 diethylenetriamine and the methanol solution of methyl acrylate are 0
Under DEG C cryogenic conditions, after mixing 3h, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h is obtained
To the shape-memory alloy wire of grafting ultrabranching polyamide, wherein be grafted in the shape-memory alloy wire of ultrabranching polyamide and surpass
The content of branched polyamide is 3.5wt%.
(3) nano silver wire is scattered in ethanol solution, is added after ferric nitrate etching processing or laser micro etch processing
Enter to be grafted the shape-memory alloy wire of ultrabranching polyamide, after being stirred to react, remove solvent, obtains nano silver/shape memory and close
Spun gold composite material, wherein the content of nano silver is 4wt% in nano silver/shape-memory alloy wire composite material.
(4) by nano silver/shape-memory alloy wire composite material with cotton fiber is blended that modified cotton blended fiber is prepared,
Wherein, the content of nano silver/shape-memory alloy wire composite material is 6.5wt% in modified cotton blended fiber, and modified cotton is mixed
Fiber is spun with unmodified cotton fiber as raw material, weaving obtains nano silver/shape-memory alloy wire composite medical fabric.
Embodiment 6：
(1) the high molecular weight PVP that molecular weight is 35000 is added in ethylene glycol solution, is uniformly mixed, according to macromolecule
The mass ratio for measuring PVP and silver nitrate is 5:1, the ethylene glycol solution containing silver nitrate is added, oil bath reaction 2h, stands at 160 DEG C
Overnight, sediment is taken out, remaining PVP is taken out with no water washing, it is 185 to obtain draw ratio, the silver nanoparticle of a diameter of 100nm
Line.
(2) under nitrogen protection, it is 53 by mass ratio:40 diethylenetriamine and the methanol solution of methyl acrylate are 10
Under DEG C cryogenic conditions, after mixing 1h, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h is obtained
To the shape-memory alloy wire of grafting ultrabranching polyamide, wherein be grafted in the shape-memory alloy wire of ultrabranching polyamide and surpass
The content of branched polyamide is 5wt%.
(3) nano silver wire is scattered in after person's laser micro etch processing in ethanol solution, is added and is grafted hyperbranched polyamides
The shape-memory alloy wire of amine after being stirred to react, removes solvent, obtains nano silver/shape-memory alloy wire composite material,
In, the content of nano silver is 7wt% in nano silver/shape-memory alloy wire composite material.
(4) by nano silver/shape-memory alloy wire composite material with cotton fiber is blended that modified cotton blended fiber is prepared,
Wherein, the content of nano silver/shape-memory alloy wire composite material is 8.5wt% in modified cotton blended fiber, and modified cotton is mixed
Fiber is spun with unmodified cotton fiber as raw material, weaving obtains nano silver/shape-memory alloy wire composite medical fabric.
After testing, antibiotic property, the elasticity for nano silver/shape-memory alloy wire composite medical fabric that prepared by embodiment 1-6
Response rate, the result of fracture strength enhancing rate are as follows：
As seen from the above table, the mechanical property of the nano silver that prepared by the present invention/shape-memory alloy wire composite medical fabric is aobvious
Enhancing is write, also there is excellent dimensional stability and anti-microbial property.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of preparation method of nano silver/shape-memory alloy wire composite medical fabric, which is characterized in that including following step
Suddenly：
(1) high molecular weight PVP is added in ethylene glycol solution, is uniformly mixed, the ethylene glycol solution containing silver nitrate is added,
1-2h is reacted in oil bath at 160 DEG C, stands overnight, and takes out sediment, takes out remaining PVP with no water washing, obtains nano silver wire；
(2) under nitrogen protection, it under cryogenic by the methanol solution of diethylenetriamine and methyl acrylate, is uniformly mixed
Afterwards, shape-memory alloy wire is added, after removing methanol, is warming up to 150 DEG C, Depressor response 4h, obtains grafting ultrabranching polyamide
Shape-memory alloy wire；
(3) it after the etched pretreatment of nano silver wire for preparing step (1), is scattered in ethanol solution, step (2) is added and prepares
Grafting ultrabranching polyamide shape-memory alloy wire, after being stirred to react, remove solvent, obtain nano silver/shape memory and close
Spun gold composite material；
(4) nano silver/shape-memory alloy wire composite material for preparing step (3) with cotton fiber is blended that modified cotton is prepared
Blend fibre, using modified cotton blended fiber with unmodified cotton fiber as raw material, weaving obtains nano silver/marmem
Silk composite medical fabric.
2. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (1), the molecular weight of high molecular weight PVP is 30000-35000, the matter of high molecular weight PVP and silver nitrate
Amount is than being 5-6:1.
3. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (1), the draw ratio of nano silver wire is 180-200, a diameter of 80-120nm.
4. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (2), the mass ratio of diethylenetriamine and methyl acrylate is 50-53:40-45.
5. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (2), the temperature of cryogenic conditions is 0-10 DEG C, time 1-3h.
6. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (2), the content for being grafted ultrabranching polyamide in the shape-memory alloy wire of ultrabranching polyamide is not low
In 2.5wt%.
7. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (3), etching pretreatment is that ferric nitrate etching processing or laser micro etch are handled.
8. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (3), the content of nano silver is 3-8wt% in nano silver/shape-memory alloy wire composite material.
9. a kind of preparation method of nano silver according to claim 1/shape-memory alloy wire composite medical fabric, special
Sign is：In the step (4), the content of nano silver/shape-memory alloy wire composite material is 4- in modified cotton blended fiber
12wt%.
10. prepared by a kind of preparation method of nano silver/shape-memory alloy wire composite medical fabric described in claim 1-9
Nano silver/shape-memory alloy wire composite medical fabric.
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| CN113304301A (en) * | 2021-05-21 | 2021-08-27 | 周建大 | Novel multifunctional wound dressing for treating chronic wound |
| CN116622039A (en) * | 2023-07-26 | 2023-08-22 | 上海宇昂水性新材料科技股份有限公司 | Vinyl pyrrolidone segmented copolymer and preparation method and application thereof |
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| CN107385893A (en) * | 2017-09-17 | 2017-11-24 | 赵兵 | A kind of nano silver wire functionalization cotton fiber and preparation method thereof |
| CN107419518A (en) * | 2017-09-17 | 2017-12-01 | 赵兵 | Multifunctional cotton fiber based on nano silver wire/chitosan/fibroin |
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| CN101225227A (en) * | 2008-01-31 | 2008-07-23 | 上海交通大学 | Over-branched polyamidoamine and metal nano compound as well as preparation method and uses thereof |
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