CN105544091B - A kind of antibacterial nano fibrous composite and preparation method thereof - Google Patents

A kind of antibacterial nano fibrous composite and preparation method thereof Download PDF

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CN105544091B
CN105544091B CN201610040399.5A CN201610040399A CN105544091B CN 105544091 B CN105544091 B CN 105544091B CN 201610040399 A CN201610040399 A CN 201610040399A CN 105544091 B CN105544091 B CN 105544091B
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spinning
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CN105544091A (en
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王哲
潘志娟
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Suzhou University
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0015—Electro-spinning characterised by the initial state of the material
    • D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a kind of antibacterial nano fibrous composite and preparation method thereof, which is the hybrid structure PLA/TiO that there is fiber entire body nano-pore, fiber surface to contain nano projection object2Tunica fibrosa, the composite material is to staphylococcus aureus antibiotic rate 99% or more, to Escherichia coli antibiotic rate 95% or more, and to weight median diameter for the sodium chloride aerosol Particulate Air filter efficiency of 260nm is up to 99.98% or more and filtration resistance is less than 150Pa, which is：By TiO2Nano particle is added in PLA solution, and by electrostatic spinning, the hybrid structure PLA/TiO that fiber entire body contains equally distributed nano projection object with nanoporous, fiber surface is prepared in one-step method2Fiber.The preparation method of the present invention is simple, of low cost, and prepared composite material not only has higher anti-microbial property, but also has filtration efficiency and low filtration resistance, is a kind of functional filter protection material with potential application foreground.

Description

A kind of antibacterial nano fibrous composite and preparation method thereof
Technical field
The present invention relates to a kind of air filting material and preparation method thereof more particularly to a kind of antibacterial nano fiber composites Material and preparation method thereof.
Background technology
It is well known that with the fast development of heavy industry and transportation, atmosphere polluting problem especially particulate matter is dirty Dye problem becomes increasingly conspicuous, the haze weather arrived as we are common, precisely due to a large amount of particulate pollutant institute that suspended in air Caused by.These particulate pollutants not only greatly reduce the visibility of air, but also the body that can seriously affect people is strong The subparticle (PM2.5) of health, especially grain size less than 2.5 microns is easier to enter human body.For a long time in the PM2.5 rings of high concentration Live and work in border can cause the diseases such as respiratory function decline, bronchitis, asthma, congestive heart failure, coronary artery Disease also results in lung cancer etc. when serious.Therefore, very urgent to the protection of Particulate Pollution.In addition, especially indoor in air Bacterium in air is also to influence air quality, and then a key factor of larger harm is generated to people's health.
Existing traditional filtering protective materials is mainly ultra-fine fibre glass pad, melt-blown polypropylene nonwoven fabric by low temperature RF etc..But this A little filtering materials cause to filter often due to reasons such as fibre diameter are relatively large, tunica fibrosa specific surface area is small, porosity is low Efficiency is low, strainability is not good enough.In recent years, with the fast development of nanofiber manufacturing technology, especially electrostatic spinning technique It is increasingly mature, the application study to nanofiber in terms of air filtration and protection both at home and abroad also gradually increases.But it is existing Nanofiber preparation method prepared by fiber filter material or there is a problem of that filter efficiency is relatively low, filtration resistance is bigger than normal, Or there are problems that particulate matter filtering cannot take into account simultaneously with antibacterial.Therefore, it is necessary to develop it is a kind of to fine particle have height Imitate filter efficiency and low filtration resistance, while the filtering material with anti-microbial property again.
In view of above-mentioned content, the designer is actively subject to research and innovation, to found a kind of antibacterial nano fiber Composite material and preparation method makes it with more the utility value in industry.
Invention content
In order to solve the above technical problems, the object of the present invention is to provide one kind having high efficiency filter efficiency and low filtration resistance excessively Power, while the antibacterial nano fibrous composite and preparation method thereof with anti-microbial property again.
A kind of antibacterial nano fibrous composite proposed by the present invention, it is characterised in that：Including PLA fibers and TiO2It receives The surface of rice grain, the PLA fibers has nano aperture, the TiO2Nanoparticle deposition is on the surface of the PLA fibers In nano aperture, the hybrid structure PLA/TiO that there is fiber entire body nano-pore, fiber surface to contain nano projection object is formed2 Tunica fibrosa, the PLA/TiO2The porosity of tunica fibrosa is 80.6%~89.9%, and average pore size is 4.85 μm~5.70 μm.
As a further improvement on the present invention, the PLA/TiO2TiO in nano fibrous membrane2Mass percent be 15.7%~22.2%, the PLA fibre diameters are 0.76 μm~1.62 μm, the PLA/TiO2The specific surface area of tunica fibrosa is 19.27m2/ g~30.54m2/ g, nanometer pore volume are 0.078~0.139m3/g。
A kind of preparation method of antibacterial nano fibrous composite proposed by the present invention, it is characterised in that：This method Principle is：The formation of porous hybrid structure fiber mainly due to electrostatic spinning when, when containing TiO2The PLA solution of nano particle When jet stream is entered in air, there is the dichloromethane of higher vapor pressure can quickly evaporate into air and then lead for jet surface Cause jet temperature to reduce rapidly and hot phase separation occurs, at the same the non-solvent gas in air also can to spreading inside jet stream, into And lead to phase separation, as the volatilization of solvent-rich phase in the small water droplet of fiber surface and jet stream will form hole, And polymer rich phase then forms fiber reinforcement, while the TiO in jet stream2Nano particle also can be with the stretching and solidification of jet stream The surface and inside for depositing to fiber finally obtain fiber entire body and contain the mixed of nano projection object with nano-pore, fiber surface Miscellaneous structure PLA/TiO2Fibrous composite；
This approach includes the following steps：
Step (1)：By the TiO of certain mass2Nano particle is added to dichloromethane (DCM) and DMAC N,N' dimethyl acetamide (DMAC) in the mixed solvent, supersonic oscillations processing, then adds the PLA polymer of certain mass, passes through at normal temperatures The stirring of magnetic stirring apparatus finally carries out supersonic oscillations processing, obtains PLA/TiO again2Homogeneous phase solution, as spinning solution；
Step (2)：TiO will be contained2The homogeneous phase solution of nano particle is injected into 5 syringes for being placed in and receiving roller side In, the flow of spinning solution in each syringe is controlled, the envionmental humidity (RH) of electrostatic spinning is adjusted, sets spinning voltage With spinning distance, electrostatic spinning is then carried out；
Step (3)：The fiber produced during electrostatic spinning is deposited to and is received on roller, fiber in homogeneous thickness is obtained Composite material, as fiber entire body have the hybrid structure PLA/TiO that nano-pore, fiber surface contain nano projection object2Fiber Film.
As being further improved for the method for the present invention, the in the mixed solvent dichloromethane (DCM) described in step (1) and N, N- The mass ratio of dimethylacetylamide (DMAC) is 8:1~12:1.
As being further improved for the method for the present invention, the PLA/TiO described in step (1)2The quality of PLA point in homogeneous phase solution Number is 7%~9%, TiO2Nanoparticle mass score is 1.5%~2%.
As being further improved for the method for the present invention, the time of the processing of supersonic oscillations described in step (1) is 60~90 Minute.
As being further improved for the method for the present invention, the mixing time of magnetic stirring apparatus described in step (1) is for 24 hours.
As being further improved for the method for the present invention, the flow of spinning solution described in step (2) is 0.5~1.5ml/h, institute It is 15%~60% to state envionmental humidity (RH).
As being further improved for the method for the present invention, spinning voltage described in step (2) is 19kV~23kV, the spinning Distance is 10~15cm.
As being further improved for the method for the present invention, a diameter of 10cm of roller, rotating speed 0 are received described in step (3) ~90r/min.
According to the above aspect of the present invention, the present invention has at least the following advantages：The preparation method of the present invention is simple, and yield is high, cost Cheap, prepared alternating expression composite filter material not only has higher filter efficiency and lower mistake to fine particle Filtration resistance power, and there is higher anti-microbial property, it is a kind of functional filter protection material with potential application foreground.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention, And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
Description of the drawings
Fig. 1 is the scanning electron microscope sem figure of antibacterial nano fibrous composite of the present invention；
Fig. 2 is the transmission electron microscope TEM figures of antibacterial nano fibrous composite of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below Example is not limited to the scope of the present invention for illustrating the present invention.
Embodiment one：
By the TiO of certain mass2It is 10 that nano particle, which is added to mass ratio,:1 dichloromethane (DCM) and N, N- dimethyl The in the mixed solvent of acetamide (DMAC), supersonic oscillations are handled 90 minutes, then add the PLA polymer of certain mass, Pass through magnetic agitation for 24 hours at normal temperatures, finally supersonic oscillations are handled 60 minutes again.It is 7%, TiO to obtain PLA mass fractions2 The homogeneous phase solution that nanoparticle mass score is 1.75%.
TiO will be contained2The homogeneous phase solution of nano particle is injected into 5 syringes for being placed in and receiving roller side, in spinning Voltage is 23kV, spinning solution flow 1ml/h, spinning distance 12cm, and envionmental humidity (RH) carries out under conditions of being 45% Electrostatic spinning.
In above-mentioned process conditions electrostatic spinning 1h, measurement obtains TiO in porous hybrid structure tunica fibrosa2Quality percentage Than being 20%, fibre diameter is 1.36 μm, and the specific surface area of tunica fibrosa is 30.54m2/ g, nanometer pore volume are 0.139m3/ g, it is fine The porosity for tieing up film is 88.7%, and average through-hole aperture is 5.46 μm.Utilize the automatic filtrate tester of 8130 types of Certi Test Measure the NaCl aerosols that porous hybrid structure tunica fibrosa is 75nm to quantity median diameter, mass median diameter is 260nm Filter efficiency under conditions of aerosol flow is 85L/min is 99.990%, and filtration resistance is only 326.9Pa；It is molten in gas Under conditions of flow adhesive is 32L/min, tunica fibrosa has reached 99.996% to the filter efficiency of sodium chloride aerosol particle, filtering Resistance is only then 128.7Pa.The anti-microbial property of tunica fibrosa is tested according to standard GB/T/T 20944.3-2008, It measures tunica fibrosa and 99.5% has been reached to the antibiotic rate of staphylococcus aureus, the antibiotic rate of Escherichia coli is reached 96.6%.
Embodiment two：
By the TiO of certain mass2It is 10 that nano particle, which is added to mass ratio,:1 dichloromethane (DCM) and N, N- dimethyl The in the mixed solvent of acetamide (DMAC), supersonic oscillations are handled 90 minutes, then add the PLA polymer of certain mass, Pass through magnetic agitation for 24 hours at normal temperatures, finally supersonic oscillations are handled 60 minutes again.It is 7%, TiO to obtain PLA mass fractions2 The homogeneous phase solution that nanoparticle mass score is 1.75%.
TiO will be contained2The homogeneous phase solution of nano particle is injected into 5 syringes for being placed in and receiving roller side, is being spun Filament voltage is 23kV, spinning solution flow 1ml/h, spinning distance 12cm, envionmental humidity (RH) be 60% under conditions of into Row electrostatic spinning.
In above-mentioned process conditions electrostatic spinning 1h, measurement obtains TiO in porous hybrid structure tunica fibrosa2Quality percentage Than being 20%, fibre diameter is 1.43 μm, and the specific surface area of tunica fibrosa is 28.06m2/ g, nanometer pore volume are 0.129m3/ g, it is fine The porosity for tieing up film is 87.9%, and average through-hole aperture is 5.70 μm.Utilize the automatic filtrate tester of 8130 types of Certi Test Measure the NaCl aerosols that porous hybrid structure tunica fibrosa is 75nm to quantity median diameter, mass median diameter is 260nm Filter efficiency under conditions of aerosol flow is 85L/min is 99.972%, and filtration resistance is only 313.8Pa；It is molten in gas Under conditions of flow adhesive is 32L/min, tunica fibrosa has reached 99.994% to the filter efficiency of sodium chloride aerosol particle, filtering Resistance is only then 119.7Pa.The anti-microbial property of tunica fibrosa is tested according to standard GB/T/T 20944.3-2008, It measures tunica fibrosa and 97.4% has been reached to the antibiotic rate of staphylococcus aureus, the antibiotic rate of Escherichia coli is reached 95.2%.
Embodiment three：
By the TiO of certain mass2It is 10 that nano particle, which is added to mass ratio,:1 dichloromethane (DCM) and N, N- dimethyl The in the mixed solvent of acetamide (DMAC), supersonic oscillations are handled 90 minutes, then add the PLA polymer of certain mass, At normal temperatures for 24 hours by the stirring of magnetic stirring apparatus, finally supersonic oscillations are handled 60 minutes again.Obtaining PLA mass fractions is 7%, TiO2The homogeneous phase solution that nanoparticle mass score is 1.75%.
TiO will be contained2The homogeneous phase solution of nano particle is injected into 5 syringes for being placed in and receiving roller side, is being spun Filament voltage is 23kV, spinning solution flow 1ml/h, spinning distance 12cm, envionmental humidity (RH) be 15% under conditions of into Row electrostatic spinning.
In above-mentioned process conditions electrostatic spinning 1h, measurement obtains TiO in porous hybrid structure tunica fibrosa2Quality percentage Than being 20%, fibre diameter is 0.76 μm, and the specific surface area of tunica fibrosa is 19.27m2/ g, nanometer pore volume are 0.078m3/ g, it is fine The porosity for tieing up film is 80.6%, and average through-hole aperture is 4.85 μm.Utilize the automatic filtrate tester of 8130 types of Certi Test Measure the NaCl aerosols that porous hybrid structure tunica fibrosa is 75nm to quantity median diameter, mass median diameter is 260nm Filter efficiency under conditions of aerosol flow is 85L/min is 99.965%, filtration resistance 375.5Pa；In aerosol Under conditions of flow is 32L/min, tunica fibrosa has reached 99.987% to the filter efficiency of sodium chloride aerosol particle, crosses filtration resistance Power is only then 146.3Pa.The anti-microbial property of tunica fibrosa is tested according to standard GB/T/T 20944.3-2008, is surveyed It obtains tunica fibrosa and 99.8% has been reached to the antibiotic rate of staphylococcus aureus, 97.9% has been reached to the antibiotic rate of Escherichia coli.
Example IV：
By the TiO of certain mass2It is 10 that nano particle, which is added to mass ratio,:1 dichloromethane (DCM) and N, N- dimethyl The in the mixed solvent of acetamide (DMAC), supersonic oscillations are handled 90 minutes, then add the PLA polymer of certain mass, At normal temperatures for 24 hours by the stirring of magnetic stirring apparatus, finally supersonic oscillations are handled 60 minutes again.Obtaining PLA mass fractions is 7%, TiO2The homogeneous phase solution that nanoparticle mass score is 2%.
TiO will be contained2The homogeneous phase solution of nano particle is injected into 5 syringes for being placed in and receiving roller side, is being spun Filament voltage is 23kV, spinning solution flow 1ml/h, spinning distance 12cm, envionmental humidity (RH) be 45% under conditions of into Row electrostatic spinning.
In above-mentioned process conditions electrostatic spinning 1h, measurement obtains TiO in porous hybrid structure tunica fibrosa2Quality percentage Than being 22.2%, fibre diameter is 1.40 μm, and the specific surface area of tunica fibrosa is 28.84m2/ g, nanometer pore volume are 0.130m3/ g, The porosity of tunica fibrosa is 86.8%, and average through-hole aperture is 5.58 μm.It is tested using the automatic filtrate of 8130 types of Certi Test It is molten that instrument measures the NaCl gas that porous hybrid structure tunica fibrosa is 75nm to quantity median diameter, mass median diameter is 260nm Filter efficiency of glue under conditions of aerosol flow is 85L/min is 99.981%, filtration resistance 325.5Pa；It is molten in gas Under conditions of flow adhesive is 32L/min, tunica fibrosa has reached 99.996% to the filter efficiency of sodium chloride aerosol particle, filtering Resistance is only then 123.1Pa.The anti-microbial property of tunica fibrosa is tested according to standard GB/T/T 20944.3-2008, It measures tunica fibrosa and 99.9% has been reached to the antibiotic rate of staphylococcus aureus, the antibiotic rate of Escherichia coli is reached 98.6%.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and Modification, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (3)

1. a kind of preparation method of antibacterial nano fibrous composite, it is characterised in that：The principle of this method is：It is porous to mix The formation of structural fibers mainly due to electrostatic spinning when, when containing TiO2The PLA solution jets of nano particle enter air When middle, there is the dichloromethane of higher vapor pressure can quickly evaporate into air and then cause jet temperature rapid for jet surface It reduces and heat phase separation occurs, while the non-solvent gas in air also can be to spreading inside jet stream, and then non-solvent is caused to cause Phase separation, as the volatilization of solvent-rich phase in the small water droplet of fiber surface and jet stream will form hole, and polymer rich phase Then form fiber reinforcement, while the TiO in jet stream2Nano particle can also deposit to the table of fiber with the stretching and solidification of jet stream Face and inside finally obtain the hybrid structure PLA/TiO that fiber entire body contains nano projection object with nano-pore, fiber surface2 Fibrous composite；
This approach includes the following steps：
Step (1)：By the TiO of certain mass2Nano particle is added to dichloromethane (DCM) and DMAC N,N' dimethyl acetamide (DMAC) in the mixed solvent, supersonic oscillations processing, then adds the PLA polymer of certain mass, passes through at normal temperatures The stirring of magnetic stirring apparatus finally carries out supersonic oscillations processing, obtains PLA/TiO again2Homogeneous phase solution, as spinning solution；
Step (2)：TiO will be contained2The homogeneous phase solution of nano particle is injected into 5 syringes for being placed in and receiving roller side, control The flow of spinning solution, adjusts the envionmental humidity (RH) of electrostatic spinning, sets spinning voltage and spinning in each syringe Then distance carries out electrostatic spinning；
Step (3)：The fiber produced during electrostatic spinning is deposited to and is received on roller, fiber composite in homogeneous thickness is obtained Material, as fiber entire body have the hybrid structure PLA/TiO that nano-pore, fiber surface contain nano projection object2Tunica fibrosa；
The mass ratio of in the mixed solvent dichloromethane (DCM) and DMAC N,N' dimethyl acetamide (DMAC) described in step (1) is 8:1 ~12:1；
PLA/TiO described in step (1)2The mass fraction of PLA is 7%~9%, TiO in homogeneous phase solution2Nanoparticle mass point Number is 1.5%~2%；
The PLA/TiO that this method is prepared2Fibrous composite includes PLA fibers and TiO2Nano particle, the PLA fibers Surface has nano aperture, the TiO2Nanoparticle deposition forms fiber in the surface and nano aperture of the PLA fibers Entire body has the hybrid structure PLA/TiO that nano-pore, fiber surface contain nano projection object2Tunica fibrosa, the PLA/TiO2Fiber The porosity of film is 80.6%~89.9%, and average pore size is 4.85 μm~5.70 μm；
The PLA/TiO2TiO in tunica fibrosa2Mass percent be 15.7%~22.2%, the PLA fibre diameters be 0.76 μm~1.62 μm, the PLA/TiO2The specific surface area of tunica fibrosa is 19.27m2/ g~30.54m2/ g, nanometer pore volume are 0.078~0.139m3/g；
The time of the processing of supersonic oscillations described in step (1) is 60~90 minutes；
The mixing time of magnetic stirring apparatus described in step (1) is for 24 hours；
The flow of spinning solution described in step (2) is 0.5~1.5ml/h, and the envionmental humidity (RH) is 15%~60%.
2. the preparation method of antibacterial nano fibrous composite according to claim 1, it is characterised in that：Step (2) Described in spinning voltage be 19kV~23kV, spinning distance is 10~15cm.
3. the preparation method of antibacterial nano fibrous composite according to claim 1, it is characterised in that：Step (3) Described in receive roller a diameter of 10cm, rotating speed be 0~90r/min.
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* Cited by examiner, † Cited by third party
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101358382A (en) * 2008-08-26 2009-02-04 东华大学 Antibacterial nano fiber material and preparation method thereof
CN101898126A (en) * 2010-07-20 2010-12-01 东华大学 Heavy metal ion adsorption carrier and preparation method thereof
CN103485074A (en) * 2013-08-09 2014-01-01 天津工业大学 Device and method of preparing electrostatic spinning polymer/inorganic particle nano-composite film
CN103952783A (en) * 2014-04-04 2014-07-30 苏州大学 Bead-like porous PLA (Poly Lactic Acid) nano fiber as well as preparation method and application thereof
CN104774015A (en) * 2014-01-14 2015-07-15 广州市香港科大霍英东研究院 Controllable-morphology high-porosity porous ceramic membrane supporting body and preparation method thereof
CN105200663A (en) * 2015-11-04 2015-12-30 上海洁晟环保科技有限公司 Preparation method of antibacterial nanofiber membrane

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110034146A (en) * 2009-09-28 2011-04-05 재단법인대구경북과학기술원 Polycrystalline titanium dioxide nanorod and method of manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101358382A (en) * 2008-08-26 2009-02-04 东华大学 Antibacterial nano fiber material and preparation method thereof
CN101898126A (en) * 2010-07-20 2010-12-01 东华大学 Heavy metal ion adsorption carrier and preparation method thereof
CN103485074A (en) * 2013-08-09 2014-01-01 天津工业大学 Device and method of preparing electrostatic spinning polymer/inorganic particle nano-composite film
CN104774015A (en) * 2014-01-14 2015-07-15 广州市香港科大霍英东研究院 Controllable-morphology high-porosity porous ceramic membrane supporting body and preparation method thereof
CN103952783A (en) * 2014-04-04 2014-07-30 苏州大学 Bead-like porous PLA (Poly Lactic Acid) nano fiber as well as preparation method and application thereof
CN105200663A (en) * 2015-11-04 2015-12-30 上海洁晟环保科技有限公司 Preparation method of antibacterial nanofiber membrane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TiO2/聚乳酸复合纳米纤维膜的制备及其抗菌性能;王雪芳等;《材料科学与工程学报》;20140220;第32卷(第1期);第69-73页 *

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