CN106521809B - A kind of functionality PMMA-MMT-TiO2The preparation method and applications of composite nano-fiber membrane - Google Patents

A kind of functionality PMMA-MMT-TiO2The preparation method and applications of composite nano-fiber membrane Download PDF

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CN106521809B
CN106521809B CN201610901052.5A CN201610901052A CN106521809B CN 106521809 B CN106521809 B CN 106521809B CN 201610901052 A CN201610901052 A CN 201610901052A CN 106521809 B CN106521809 B CN 106521809B
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pmma
mmt
fiber membrane
tio
composite nano
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CN106521809A (en
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凤权
李曼
桓珊
钱怡帆
武丁胜
阚清华
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Anhui Polytechnic 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • 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
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • 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
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/52—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated carboxylic acids or unsaturated esters
    • 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
    • D04H1/4282—Addition polymers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
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Abstract

The invention discloses a kind of functionality PMMA-MMT-TiO2The preparation method and applications of composite nano-fiber membrane, the preparation method includes the following steps: step 1, it takes polymethyl methacrylate, montmorillonite, nano-titanium dioxide to be dissolved in polar organic solvent and prepares the spinning solution that polymethyl methacrylate mass fraction is 25-30%, wherein the mass ratio of montmorillonite, nano-titanium dioxide and polymethyl methacrylate is 0.03-0.05:0.02-0.03:1；The spinning solution is prepared PMMA-MMT-TiO by electrostatic spinning process by step 22Composite nano-fiber membrane.The present invention is higher to the utilization rate of light, is more advantageous to light-catalysed progress, also has certain inhibiting effect for the growth of bacterium.

Description

A kind of functionality PMMA-MMT-TiO2The preparation method of composite nano-fiber membrane and its Using
Technical field
The invention belongs to composite nano-fiber membrane preparation technical fields, and in particular to a kind of functionality PMMA-MMT-TiO2 The preparation method and applications of composite nano-fiber membrane.
Background technique
Polymethyl methacrylate (PMMA), is commonly called as organic glass, is a kind of to be existed by acrylicacidandesters class compound Obtained polymer under certain condition Jing Guo polymerization reaction.PMMA is soluble in organic solvent, such as phenol, methyl phenyl ethers anisole etc., passes through Spin coating can form good film, have good dielectric properties.Polymethyl acrylate has extraordinary optical property, phase Compared with for glass material have better light transmittance, wherein the transmitance of visible light is up to 92%, and quartz can be completely through purple Outside line, but it is at high price, and simple glass can only penetrate 0.6% ultraviolet light, but PMMA can penetrate 73%.In irradiating ultraviolet light Situation under, and polycarbonate ratio, PMMA has more preferably stability.Polymethyl methacrylate is in current high molecular material It is most excellent, and price and the kind more moderate compared to other materials.
Montmorillonite (MMT) also known as montmorillonite, montmorillonite.Usually there is very strong adsorption capacity and cation to hand over for it Transsexual energy, is mainly originated in the weathering crust of volcanic tuff.Modified montmorillonite have very strong adsorption capacity, good point Performance is dissipated, can be widely applied additive of the high molecular material industry as nanometer polymer high molecular material, raising shock resistance, Antifatigue, dimensional stability and gas barrier property etc. change simultaneously to play the role of enhancing polymer comprehensive physical performance Kind materiel machining performance.Titanium dioxide, white solid or powdered amphoteric compound, Nano titanium dioxide is due to partial size Small, activity is big, can not only reflect, scatters ultraviolet, and can absorb ultraviolet light, to have stronger obstructing capacity to ultraviolet light. The activation of titanium dioxide meeting surface water generates surface hydroxyl and captures free hole under normal conditions, forms hydroxyl radical free radical, and dissociates Free electron superoxide radical can be generated in conjunction with absorbing state oxygen quickly, thus the bacterium of surrounding can also be killed with virus Extremely.Titanium dioxide semiconductor material is since its oxidisability is strong, and its chemical property is more stable, nontoxic, while its is cheap, Therefore it is applied to gas sensor, solar battery, the various fields such as sewage treatment and air cleaning in large quantities.But due to Titanium dioxide has biggish forbidden bandwidth, therefore can only absorb excitation ultraviolet wavelength light below and be reacted, however ultraviolet Light only accounts for white light small part, about 5% or so, so utilization scope of the increase titanium dioxide to the wavelength of white light, right Its photocatalysis efficiency tool is improved to play a very important role.
Light-catalysed essence is under the irradiation of certain wavelength, and excitation generates the organic matter in some substances and solution and occurs Redox reaction.Photocatalysis nano material is semiconductor material mostly, different from metal, and the energy band of semiconductor material is not connect Continuous, filling up between the low energy valence band of electronics and the higher energy conduction band of sky has a wide forbidden band, when it is greater than band gap by energy When the light irradiation of energy, the electronics in valence band is transitted on the high conduction band of energy by excitation, to generate hole-electron It is right, hole and electronics respectively at the water molecule reaction in the dissolved oxygen and water for being adsorbed on particle surface, generate hydroxyl radical free radical with Superoxide radical, redox reaction occurs with the organic matter in solution again for these free radicals, therefore realizes to organic matter Catalytic degradation effect, and its product is mostly carbon dioxide and water, cleanliness without any pollution.The free radical generated due to photocatalysis The cell wall that bacterium can be passed through enters the inside of bacterium, and hinders its related normal intracellular vital movement, to inhibit The breeding of bacterium, therefore be loaded with the catalysis material of titanium dioxide also while there is certain antibacterial action.With social production The continuous improvement of power, the environmental wastewater amount of various production and living are also increasing at an amazing speed, these waste water seriously polluted Our ecological environment threatens the life security and health of people.Therefore titanium dioxide composite nano material has wide Application prospect.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to propose a kind of functionality PMMA- MMT- TiO2The preparation method and applications of composite nano-fiber membrane, it is therefore an objective to make composite nano-fiber membrane that there is good light Catalytic performance, and certain antibiotic property is shown simultaneously.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of functionality PMMA-MMT-TiO2The preparation method of composite nano-fiber membrane, the preparation method include as follows Step:
Step 1 takes polymethyl methacrylate, montmorillonite, nano-titanium dioxide to be dissolved in polar organic solvent and prepares poly- first Base methyl acrylate mass fraction is the spinning solution of 25-30%, wherein montmorillonite, nano-titanium dioxide and poly-methyl methacrylate The mass ratio of ester is 0.03-0.05:0.02-0.03:1；
The spinning solution is prepared PMMA-MMT-TiO by electrostatic spinning process by step 22Composite nano-fiber membrane.
The mass fraction of polymethyl methacrylate is 25% in the spinning solution.It is quiet by high pressure using this mass fraction The PMMA-MMT-TiO2 composite nano-fiber membrane form of Electrospinning preparation is preferable, and specific surface area is bigger, and light utilization efficiency is more It is high.
The mass ratio of the montmorillonite, nano-titanium dioxide and polymethyl methacrylate is 0.05:0.02:1.Using this Ratio passes through the PMMA-MMT-TiO of high-voltage electrostatic spinning technology preparation2The anti-microbial property of composite nano-fiber membrane and photocatalysis effect Fruit is preferable.
The polar organic solvent is N,N-dimethylformamide.It can be good at dissolving using N,N-dimethylformamide Polymethyl methacrylate, montmorillonite and nano-titanium dioxide, convenient for forming the spinning solution for being used for electrostatic spinning.
The electrostatic spinning process includes spinning head and reception rotating cylinder, specific electrostatic spinning process parameter are as follows: spinning electricity Pressure is 17-18kV, and spinning flow velocity is 0.3-0.5ml/h, and the revolving speed of rotating cylinder is 50-100r/min, spinning head and receive rotating cylinder it Between distance be 16-18cm, collect 5-10h.
The functionality PMMA-MMT-TiO2The PMMA-MMT-TiO of the preparation method preparation of composite nano-fiber membrane2It is compound Application of the nano fibrous membrane in anti-biotic material.
The functionality PMMA-MMT-TiO2The PMMA-MMT-TiO of the preparation method preparation of composite nano-fiber membrane2It is compound Application of the nano fibrous membrane in catalysis material.
The medicine have the advantages that PMMA-MMT-TiO prepared by the present invention2Composite nano-fiber membrane, three kinds of material mixing Uniformly, the advantages of utilizing its various component well.The translucency of PMMA material is excellent, the nano fibrous membrane for preparing us It is higher to the utilization rate of light, it is more advantageous to light-catalysed progress.Montmorillonite structure is fluffy, and volume becomes original after especially absorbing water Several times increase specific surface area, to increase PMMA-MMT-TiO2The light-receiving area of composite nano fiber and and by be catalyzed it is molten The contact area of liquid, since the structure of inorganic montmorillonite crystal has many ducts, montmorillonite also has certain good Absorption property, being capable of a part of waste pollutant in absorption effluent.And titanium dioxide is in addition to its strong oxidizing property, and to purple The powerful reflection of outside line, scattering also have certain anti-microbial property with outside absorbability.The thus PMMA-MMT-TiO of preparation2 Composite nano-fiber membrane can actively play absorption and two kinds of photocatalysis effects, also have for the growth of bacterium therein certain Inhibiting effect.And compared to granular material, which is easily recycled processing, effectively prevents giving up to after processing The secondary pollution of water.
Detailed description of the invention
Content expressed by this specification attached drawing and the label in figure are briefly described below:
Fig. 1 is PMMA-MMT-TiO of the invention2The SEM of composite nano-fiber membrane schemes；
Fig. 2 is PMMA-MMT-TiO of the invention2The EDS of composite nano-fiber membrane schemes；
Fig. 3 is PMMA-MMT-TiO of the invention2Composite nano-fiber membrane is directed to the anti-microbial property test figure of Escherichia coli；
Wherein, a is the width of antibacterial band；
Fig. 4 is PMMA-MMT-TiO of the invention2Composite nano-fiber membrane is catalyzed methylene blue solution comparison diagram.
Specific embodiment
Below against attached drawing, by the description of the embodiment, for example related each component of a specific embodiment of the invention Shape, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology Scheme has more complete, accurate and deep understanding.
A kind of functionality PMMA-MMT-TiO2The preparation method of composite nano-fiber membrane, includes the following steps:
Step 1 takes polymethyl methacrylate, montmorillonite, nano-titanium dioxide to be dissolved in polar organic solvent and prepares poly- first Base methyl acrylate mass fraction is the spinning solution of 25-30%, wherein montmorillonite, nano-titanium dioxide and poly-methyl methacrylate The mass ratio of ester is 0.03-0.05:0.02-0.03:1；Step 2 prepares above-mentioned spinning solution by electrostatic spinning process PMMA-MMT-TiO2Composite nano-fiber membrane.Using said ratio, answering for form stable is capable of forming by electrostatic spinning process Close nano fibrous membrane.It is described in detail below by the embodiment of optimum ratio.
Embodiment 1:
7.5g polymethyl methacrylate, the montmorillonite of 0.375g, the titanium dioxide of 0.15g are accurately weighed using electronic balance Titanium is put in conical flask, adds n,N-Dimethylformamide (DMF) reagent of 21.975g, above-mentioned mixed solution is put in 40 It stirs in DEG C constant temperature blender with magnetic force and is mixed to solute with solvent substantially uniformity.Preparing mass fraction is 25% polymethyl Sour methyl esters spinning solution, wherein montmorillonite quality accounts for the 5% of polymethyl methacrylate quality, and the quality of titanium dioxide accounts for poly- methyl The 2% of methyl acrylate quality.Spinning solution after mixing evenly is poured into 10ml, needle diameter is to use in the syringe of 0.7mm Abrasive machine polishes flat the syringe needle that internal diameter is 0.7mm.The anode of high voltage power supply, which connects, is being horizontally fixed on syringe pump On the needle point of syringe, at room temperature, electrospinning parameters are adjusted are as follows: the distance between spinning head and reception rotating cylinder 16cm, spinning flow velocity 0.5ml/h, spinning voltage to 17kV observe its spinning form, and the aluminium-foil paper received on rotating cylinder starts to receive Composite nano-fiber membrane, wherein the revolving speed of rotating cylinder is about 100r/min.After spinning 10h, it is put in 40 DEG C of vacuum ovens dry It is spare, that is, prepare PMMA-MMT-TiO2Composite nano-fiber membrane.
Embodiment 2:
2.5g polymethyl methacrylate, the montmorillonite of 0.125g, the dioxy of 0.075g are accurately weighed using electronic balance Change titanium to be put in conical flask, adds n,N-Dimethylformamide (DMF) reagent of 7.3g, above-mentioned mixed solution is put in 40 DEG C Stirring is mixed to solute with solvent substantially uniformity in constant temperature blender with magnetic force.Preparing mass fraction is 25% polymethylacrylic acid Methyl esters spinning solution, wherein montmorillonite quality accounts for the 5% of polymethyl methacrylate quality, and the quality of titanium dioxide accounts for poly- methyl-prop The 3% of e pioic acid methyl ester quality.Uniform spinning solution is poured into 10ml, needle diameter is to be incited somebody to action in the syringe of 0.7mm with abrasive machine Syringe needle polishes flat.The anode of high voltage power supply connects on the needle point for the syringe for being horizontally fixed on syringe pump, in room temperature Under the conditions of, adjust electrospinning parameters are as follows: spinning head and receive the distance between rotating cylinder 18cm, spinning flow velocity 0.5ml/h, spinning Voltage is 18kV, observes its spinning form, receives the aluminium-foil paper on rotating cylinder and starts to receive composite nano fiber, wherein turn of rotating cylinder Speed is about 50r/min.After spinning 10h, it is put in drying for standby in 40 DEG C of vacuum ovens, that is, prepares PMMA-MMT-TiO2It is compound Nano fibrous membrane.
The functional PMMA-MMT-TiO that will be prepared in embodiment 1-22Composite nano-fiber membrane carries out anti-microbial property test. It chooses Escherichia coli (or staphylococcus aureus) and is used as experimental strain, to PMMA-MMT-TiO2Composite nano-fiber membrane resists Bacterium performance is qualitatively tested, and is cultivated using beef extract-peptone as culture medium bacterium.In experiment we respectively with Pure PMMA electrostatic spinning nano fiber film is blank control group, with PMMA-MMT-TiO2Composite nano-fiber membrane is experimental group, and The tunica fibrosa that clip diameter is 6mm respectively carries out anti-microbial property as laboratory sample, to the tunica fibrosa of two kinds of different materials Test.According to GB-T20944 standard it is found that the evaluation index of anti-microbial property is primarily to see the presence or absence of bacterial reproduction and suppression under sample The width in cingula.Without bacterial reproduction when the antibacterial bandwidth of laboratory sample is greater than 1mm and under sample, then the antibacterial of the material is imitated Fruit is good.As shown in Table 1, experimental group PMMA-MMT-TiO2The antibacterial band mean breadth that composite nano-fiber membrane generates is 3.66mm, Obviously greater than the 1mm in standard, and without bacterial reproduction under sample, and the antibacterial bandwidth of control group is 0.00mm, under sample There is a large amount of bacterial reproduction.It can be seen that the PMMA-MMT-TiO of preparation2Composite nano-fiber membrane has good antibiotic property Energy.
The functional PMMA-MMT-TiO of 1. embodiment 1-2 of table preparation2The antibacterial bandwidth (mm) of nano fibrous membrane is tested As a result
The functional PMMA-MMT-TiO that will be prepared in embodiment 1-22Composite nano-fiber membrane carries out photocatalysis performance survey Examination.With PMMA-MMT-TiO2Composite nano-fiber membrane is as catalysis material, by the nano fibrous membrane to methylene blue solution Degradation capability size simulation probe into its photocatalysis performance.In test, we are made with 50ml, the methylene blue solution of 5mg/L For blank control group, added with 50mg PMMA-MMT-TiO2The methylene blue solution of the 50ml of composite nano-fiber membrane, 5mg/L is The solution of experimental group and control group is put into XPA photochemical reactor under conditions of the irradiation of 500W mercury lamp light by experimental group Middle progress photocatalysis experiment, after 2h, by the absorbance of its solution of UV-5500 type measurement of ultraviolet-visible spectrophotometer, in turn The photocatalysis performance of characterization measurement composite nano fiber.As shown in Table 2, PMMA-MMT-TiO2Composite nano-fiber membrane to 50ml, The average degradation rate of the methylene blue solution of 5mg/L has reached 79%, and the degradation rate of control group is 4.8%.Therefore, it is known that PMMA-MMT-TiO2Composite nano-fiber membrane has good photocatalysis performance.
The functional PMMA-MMT-TiO of 2. embodiment 1-2 of table preparation2Nanofiber
Photocatalysis test result
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above, As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention Range should be determined by the scope of protection defined in the claims.

Claims (5)

1. a kind of functionality PMMA-MMT-TiO2The preparation method of composite nano-fiber membrane, which is characterized in that the preparation method Include the following steps:
Step 1 takes polymethyl methacrylate, montmorillonite, nano-titanium dioxide to be dissolved in polar organic solvent and prepares poly- methyl-prop E pioic acid methyl ester mass fraction is the spinning solution of 25-30%, wherein montmorillonite, nano-titanium dioxide and polymethyl methacrylate Mass ratio is 0.03-0.05:0.02-0.03:1；
The spinning solution is prepared PMMA-MMT-TiO by electrostatic spinning process by step 22Composite nano-fiber membrane；
The polar organic solvent is N,N-dimethylformamide；
The electrostatic spinning process includes spinning head and receives rotating cylinder, specific electrostatic spinning process parameter are as follows: spinning voltage is 17-18kV, spinning flow velocity are 0.3-0.5ml/h, and the revolving speed of rotating cylinder is 50-100r/min, between spinning head and reception rotating cylinder Distance is 16-18cm, collects 5-10h.
2. functionality PMMA-MMT-TiO according to claim 12The preparation method of composite nano-fiber membrane, it is characterised in that: The mass fraction of polymethyl methacrylate is 25% in the spinning solution.
3. functionality PMMA-MMT-TiO according to claim 12The preparation method of composite nano-fiber membrane, it is characterised in that: The mass ratio of the montmorillonite, nano-titanium dioxide and polymethyl methacrylate is 0.05:0.02:1.
4. any one of claims 1 to 3 functionality PMMA-MMT-TiO2The preparation method preparation of composite nano-fiber membrane PMMA-MMT-TiO2Application of the composite nano-fiber membrane in anti-biotic material.
5. any one of claims 1 to 3 functionality PMMA-MMT-TiO2The preparation method preparation of composite nano-fiber membrane PMMA-MMT-TiO2Application of the composite nano-fiber membrane in catalysis material.
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