CN108641039A - A kind of cladded type nucleocapsid composite particles and its preparation method and application - Google Patents
A kind of cladded type nucleocapsid composite particles and its preparation method and application Download PDFInfo
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Abstract
The invention discloses cladded type nucleocapsid composite particles and its preparation method and application, shell one, shell two and the shell three that the cladded type nucleocapsid composite particles include inner core and are coated on successively on the inner core, the inner core is titanium dioxide, the shell one is aluminium oxide, the shell two is poly- (styrene divinylbenzene), and the shell three is polymethyl methacrylate.The present invention is prepared for a kind of composite particles of cladded type nucleocapsid by multi-step emulsion polymerization, can realize particles self assemble under ultra low voltage induction.Pass through inorganic and organic materials coating modification so that the composite particles prepared have excellent electrical response type, have preferable application prospect in photoelectric field.
Description
Technical field
The present invention relates to field of compound material, more particularly, to a kind of cladded type nucleocapsid composite particles and its preparation side
Method and application.
Background technology
Nanoparticle refers to that size is nanometer scale (10-9M) ultramicro powder, size are more than cluster, but less than normal
The particle seen, grain size is generally between 1~100nm.Nanoparticle has small-size effect, quantum size effect, skin effect
And the fundamental characteristics such as macro quanta tunnel effect, therefore have special performance in fields such as light, electricity, magnetic, heat and catalysis.
Inorganic material has many advantages, such as that good intensity, rigidity, heat resistance, dimensional stability and service life are long, but
Exist simultaneously the shortcomings of machine-shaping is more difficult.For organic material is compared to inorganic material, machine-shaping is easier to, and is had
It the deficiencies of structure designability and good advantage of comprehensive mechanical strength, but thermal stability is bad, electronic spectrum spectral line width, can not
Fully meet the requirement of the functional materials such as light, electricity, magnetic.Therefore, by having complementary advantages, obtained inorganic material and organic polymer
Material is formed by composite material, greatly meets the demand of above-mentioned functional material, in fields such as electronics, optics, machineries
All have wide development and application foreground.
Nano-titanium dioxide (TiO2) it is a kind of function fine inorganic material that added value is very high, because its is good weather-proof
The features such as property, chemical resistance, strong anti-uv-ray, it is widely used in coating, photochemical catalyst, cosmetics, sensor
And the fields such as electronic material.TiO2There are 3 kinds of existence forms in nature, i.e.,：Brookite type, Detitanium-ore-type and rutile-type.
Crystal structure determines TiO2Property, rutile-type are TiO2Most stable of crystal habit is thermodynamically stable phase, its structure causes
Close, refractive index, hardness and dielectric constant are higher than Detitanium-ore-type.Due to TiO2Molecular polarity is very strong so that TiO2It easily adsorbs on surface
Hydrone simultaneously makes moisture muon polarization and forms surface hydroxyl.And the TiO of nanometer scale2Large specific surface area, surface energy is high, is preparing
With easily reunite in application process, the performance for keeping its excellent is not in full use, it is therefore desirable to nano-TiO2It carries out
Surface modification treatment.Secondly the relative dielectric constant of titanium dioxide granule reaches 110, and numerical value is bigger than normal, pure titinium dioxide particle
Homogeneous colloids suspension needs just have good electrical response under higher extra electric field, is unfavorable for it in photoelectric field
Response.
The spontaneous nano-particles self assemble of generally use or Chemical self-assembly means progress surface are modified at present, but
Stringent control and choice experiment condition and parameter are needed, meanwhile, simple Chemical self-assembly is not particularly suited for large-scale operation and obtains
To ideal package assembly.To make self assembly have more purpose and controllability, often physics is introduced during Chemical self-assembly
Outfield (electric field, magnetic field) utilizes the Interaction enhanced substance of outfield and nano particle dipole moment inherently or change
The variation of system capacity in self assembling process, to obtain unique assembling pattern and structure.
For electric field as a kind of assembling means being widely adopted, what is currently mainly studied is that induction is received under action of alternative electric field
Rice grain moves in the electric field, and common particle has gold nanoparticle, carbon black nano-particle, SiO2With Al submicron particles and
The composite particles of sub-micron or micron dimension, under applied alternating field, obtain it is one-dimensional align, the knots such as nanometer or micro wire
Structure.Wherein, particle, which generally requires, is dispersed in deionized water, acetone isopolarity solvent, and electric field strength needs 1~16kV/
mm.Influence in view of external environment to nano particle, experimental facilities is using closed system as main study subject.This method
Limitation be mainly reflected in two aspect：First, extra electric field length is larger, it is easy breakdown test device；Second is that test environment
It needs to close, increases test cleaning and the requirement to cleanliness factor.
Invention content
To solve the deficiencies in the prior art, the object of the present invention is to provide a kind of cladded type nucleocapsid composite particles and its
Preparation method and application.
The technical solution used in the present invention is：
The present invention provides a kind of cladded type nucleocapsid composite particles, including inner core and is coated on successively in described
Shell one, shell two on nuclear structure and shell three, the inner core are titanium dioxide, and the shell one is aluminium oxide, institute
It is poly- (styrene-divinylbenzene) to state shell two, and the shell three is polymethyl methacrylate.
Shell two is poly- (styrene-divinylbenzene) layer in the present invention, is existed by styrene monomer, divinylbenzene monomers
The lower polymerization of initiator effect is formed.
Preferably, the inner core is nano particle, and grain size is 25~100nm.
The present invention also provides a kind of preparation methods of above-mentioned cladded type nucleocapsid composite particles, include the following steps：
(1) it takes titanium dioxide granule to be scattered in solvent, aluminium salt is added, hydrolysis obtains substance A；
(2) it takes substance A to be mixed with styrene monomer, divinylbenzene monomers, initiator and emulsifier is added, utilizes lotion
Polymerization obtains substance B；
(3) substance B is scattered in emulsifier, methyl methacrylate monomer is added, object is obtained using emulsion polymerization
Matter C.
Aluminium salt forms one layer of fine and close aluminium oxide (Al by hydrolyzing on the surface of titanium dioxide granule in step (1)2O3) knot
Structure, obtained substance A are using titanium dioxide as inner core, and aluminium oxide is the composite particles of shell structurre.Benzene second in step (2)
Alkene monomer, talan monomer form poly- (styrene-divinylbenzene) layer under the action of initiator, on substance A surface and obtain
To substance B, substance C structure is to coat one layer of polymethyl methacrylate layers on substance B surface in step (3).
Preferably, aluminium salt is any one of sodium metaaluminate, aluminium chloride, aluminum sulfate in step (1).
Preferably, the initiator is azo-initiator or inorganic peroxy class initiator.
Further, the azo-initiator is azodiisobutyronitrile (AIBN), and the inorganic peroxy class initiator is
Water soluble starter potassium peroxydisulfate (KPS).
Preferably, the emulsifier is the methanol solution for being added to water-soluble high-molecular compound.
Further, the water-soluble high-molecular compound is polyvinylpyrrolidone (PVP, K23-27).
Preferably, further include step (4)：It takes the substance C that step (3) obtains to be scattered in organic solvent, surface is added and lives
Property agent, apply applying direct current electric field carry out self assembly.The present invention is basically completed completely in 30s from group in the case where applying applied voltage
Fill chain structure.Regional area because the grain size of composite particles is larger, the induced dipole square generated under external electric field inducing action compared with
Greatly, it is easy to form the structure of forked.With the increase of applied voltage, particle induces the chain knot being self-assembly of under the electric field
Configuration interaction enhances, and further promotes to form column structure, two-dimensional structure is developed into from one-dimentional structure.Change kernel nanometer
Light, fuel factor in external voltage and environment that grain grain size, adjusting apply can obtain different self-assembled structures.
Further, the organic solvent is at least one of n-undecane, dimethicone, mineral oil, vegetable oil.
Further, the surfactant is sapn.Wherein sapn refers to Span series, including span 20
(Span20), span 40 (Span40), sorbester p18 (Span60), sorbester p17 (Span80), span 85 (Span85) etc..
Further, electric field strength≤10V/mm of the DC electric field.The device of impressed DC voltage is provided in the present invention
Part can be at least containing there are two the open substrate of the electrode either substrate containing upper and lower conductive layers, and such as open tablet is led
Electric glass devices, the spacing between preferred electrode are 100 ± 10 μm.
Above-mentioned cladded type nucleocapsid composite particles have the characteristics that very fast response under ultralow electric field, are led in photoelectricity
Domain has preferable application prospect, the application preferably in photovoltaic solar cell.
The beneficial effects of the invention are as follows：
1, the present invention provides a kind of cladded type nucleocapsid composite particles, is a kind of response material suitable for electricity field
Material, can be self-assembly of the structure with specific morphology, oxidized alumina particles are deposited on titanium dioxide table under extra electric field
Face can have good light absorption and electronic transmission performance as electron transfer layer, oxidized in contrast to pure titinium dioxide material
The short circuit current of the composite titania material of aluminium doping is also improved significantly.In addition, aluminium oxide has higher isoelectric point,
Its isoelectric point is about 9.2, is also beneficial to its response in photoelectric field, so, the addition of alumina layer can improve composite particles
Light absorption and electronic transmission performance, can promote composite particles that there is electrical response characteristic under relatively low outer plus induction electric field,
There is preferable application prospect in photovoltaic solar cell.
2, under relatively low extra electric field, the pure titinium dioxide particle dispersion suspension of nanometer scale is in random dispersed
State, based on unordered Brownian movement.The encapsulated particles of the oxidized aluminium modification of surfacing, surface potential is in electropositive, energy
Under super low-electric field inducting, by initial random Brownian movement dispersity, rapid aggregation forms electricity at positive and negative electrode edge
Intensive enrichment state on pole edge and electrode pad, the electric field strength that electroresponse needs are low.
3, the specific surface energy of nano-titanium dioxide is higher, in order to change the hydrophilic and hydrophobic of titanium dioxide surface, traditional side
Method is mostly to pass through silane coupling agent, 3- (methacryloxypropyl) propyl trimethoxy silicane on titanium dioxide granule surface
(MPS) modified, using the interaction between carbon-carbon double bond and styrene group, promote styrene on titanium dioxide granule surface
It polymerize, the TiO obtained from2The compound of/PS nucleocapsids, the particle can reduce required application to a certain extent
Additional induction electric field, still, additional induction electric field are still higher, are typically necessary in 1kV/mm or more.Present invention oxygen
Change the use that aluminium layer substitutes silane coupling agent, is modified through inorganic-organic-organic material, on the surface of aluminium oxide, styrene also can
Effectively it polymerize and in its surface modification, the composite particles of gained can be under super low-electric field inducting, and rapid aggregation is on positive and negative electrode side
Edge ultimately forms the structures such as chain, column or comb teeth-shaped because particles' interaction promotes particles self assemble.
4, the present invention is prepared for a kind of composite particles of cladded type nucleocapsid by multi-step emulsion polymerization, can be in ultralow electricity
Pressure induction is lower to realize particles self assemble.It can be effectively using the synergistic effect of material by inorganic and organic materials coating modification
Particle is reduced under external electrical field inducing action, is self-assembly of and aligns required external voltage, is conducive to avoid
Device breakdown caused by extra electric field is excessive is destroyed.
Description of the drawings
Fig. 1 is the synthetic route schematic diagram of the cladded type nucleocapsid composite particles of the present invention；
Fig. 2 is the composite structure schematic diagram of the cladded type nucleocapsid composite particles of the present invention；
Fig. 3 is the TEM structural schematic diagrams of the cladded type nucleocapsid composite particles of the present invention；
Fig. 4 be the embodiment of the present invention 1 in ultra low voltage induce cladded type nucleocapsid composite particles self assembly vertical view and
Front schematic schematic diagram；
Fig. 5 is cladded type nucleocapsid composite particles self assembly every under ultra low voltage 1.3V/mm inductions of the present invention
Every the chronergy figure of 10s；
Fig. 6 is cladded type nucleocapsid composite particles self assembly every under ultra low voltage 0.7kV/mm inductions of the present invention
Every the chronergy figure of 10s；
Fig. 7 is cladded type nucleocapsid composite particles self assembly every under ultra low voltage 0.9kV/mm inductions of the present invention
Every the chronergy figure of 10s；
Fig. 8 is the electricity after self assembly 10s under the cladded type nucleocapsid composite particles of the present invention induce under different voltages
Press design sketch.
Specific implementation mode
The technique effect of design and the generation of the present invention is clearly and completely described below with reference to embodiment, with
It is completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is that the part of the present invention is implemented
Example, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art is not before making the creative labor
Obtained other embodiment is put, the scope of protection of the invention is belonged to.
Embodiment 1
Referring to Fig. 1 and Fig. 2, the present embodiment provides a kind of preparation methods of cladded type nucleocapsid composite particles, including with
Lower step：
By 2.0g titania nanoparticles through 500 DEG C of calcination processings of annealing for 10 hours, after be scattered in and fill 10g deionizations
The mixing A liquid that suspends is obtained in the 50mL three-necked flasks of water, adjusting solution ph with 20%NaOH solution reaches 9-10.It is stirred in magnetic force
Uniform stirring under device is mixed, mixing speed 400r/min is warming up to 75 DEG C, and 6mL 10%NaAlO are added dropwise in 60min dropwise2It is molten
Liquid adjusts pH value with 20%HCl solution, maintains pH value in 8-9 ranges, adjusts acid-base value and promote sodium aluminate solution hydrolysis,
PH value 7-8 is maintained, reacts 60min at 75 DEG C of constant temperature, TiO is made2/Al2O3Nano particle (substance A).
Substance A obtained above is polished, cross-linked styrene layer is prepared using situ aggregation method, specific steps are such as
Under：0.05g above-mentioned substance A are taken, are mixed with 0.3g styrene (St) and 0.017g divinylbenzenes (DVB), ultrasonic disperse
20min obtains mixed liquor, the mixed liquor is added in the methanol solution of 2.4wt% polyvinylpyrrolidones (PVP), surpasses
Sound after five minutes, under ice bath environment, through ultrasonic emulsification decentralized processing 30min, pours into three-necked flask, adds under nitrogen protection
Enter 0.01g azodiisobutyronitrile initiators, mixing speed 800r/min is warming up to 75 DEG C, is kept stirring reaction 6 hours, obtains
To substance B.
Substance B is further modified by suspo-emulsion polymerization：Obtained substance B is dispersed in 2.4wt% polyethylene pyrroles
In the methanol solution of pyrrolidone (PVP), 70 μ L methyl methacrylates are rapidly joined, mixing speed are maintained, at 75 DEG C of constant temperature
Reaction terminates after 14 hours, after mixture is aged 2 hours, three times with deionized water repeated washing, through 50 DEG C of dryings of vacuum, grinding
Afterwards arrive substance C, i.e., cladded type nucleocapsid composite particles of the invention.The cladded type nucleocapsid for taking the present invention to be prepared
Composite particles characterize it, and TEM electron microscopes are as shown in Figure 3.From figure 3, it can be seen that cladded type core prepared by the present invention
The shell thickness of shell structure composite particles about 3 ± 1nm, for single particle it is complete cladding based on, have apparent nucleocapsid circle
Face can form good clad structure.
Embodiment 2
The cladded type nucleocapsid composite particles prepared in 0.0065g embodiments 1 are taken to be dispersed in 98% n-undecanes of 5m L
In, according to mass ratio 9:1 is added nonionic surfactant LSpan80, and ultrasonic disperse obtains even suspension white " milky " liquid.
Electrode spacing is about that ultralow DC voltage 0V, real output value 0.13V is arranged in 100 μm of device, primary every 10s records,
The cladded type nucleocapsid composite particles of the present invention can quickly be self-assembly of chain structure between two-plate.The present embodiment induces
Cladded type nucleocapsid composite particles are self-assembly of the schematic diagram of chain structure as shown in figure 4, Fig. 4 (a) and Fig. 4 (b) difference
Indicate the vertical view and front view of self assembly schematic diagram.When applying extra electric field, cladded type nucleocapsid composite particles by
External electric field poling acts on, and since the distribution of charges of composite particles surface and interface is uneven, and induced dipole is generated, in electric field force
Electric field movement migration occurs for the lower induction composite particles of effect, as shown in Fig. 4 (a).In overlook observation region, between composite particles due to
Xenogenesis charge is attracted each other, and forms short-chain structure at the two poles of the earth, and constantly increase；As chain length increases, interchain interaction
, there is interchain winding in the middle part of two electrodes in enhancing, to form close crosslinking winding arrangement, is formed by induction self assembly knot
Structure, front two inter-electrode spaces of observation, can be obtained chain structure, as shown in Fig. 4 (b).
Fig. 5 (a)-(f) is to be spaced what 10s was obtained from voltage is applied to voltage 50s is applied at ultralow electric field 1.3V/mm
Optical microscope image.Starting apply voltage 10s, cladded type nucleocapsid composite particles rapid aggregation at electrode both ends, and
And there is a large amount of short-chain structure, extend towards an electrically opposite pole；Ultra low voltage induction is basically completed in 20s to be self-assembly of
Two interelectrode chain structures.The present invention cladded type nucleocapsid composite particles have under ultra low voltage quick response it is excellent
Point has preferable application prospect in photoelectric field such as photovoltaic solar cell.
Embodiment 3
The present embodiment is same as Example 2, the difference is that, the ultralow DC voltage of setting is changed to 70V by 0V, electricity
Field is 0.7kV/mm, from the initial voltage that applies to voltage 50s is applied, is spaced optical microscope image such as Fig. 6 (a)-that 10s is obtained
(f) shown in.Starting to apply voltage 10s, particle rapid aggregation is basically completed ultra low voltage induction from group at electrode both ends
Dress forms two interelectrode chain structures, is formed by chain structure and is twined in the crosslinking of two-plate central region by inducing action
Around formation comb teeth-shaped structure, the column structure that middle part is closely wound on two-plate.
Embodiment 4
The present embodiment is same as Example 2, the difference is that, the ultralow DC voltage of setting is changed to 90V by 0V, electricity
Field is 0.9kV/mm, from the initial voltage that applies to voltage 50s is applied, is spaced optical microscope image such as Fig. 7 (a)-that 10s is obtained
(f) shown in.Starting to apply voltage 10s, particle rapid aggregation is basically completed ultra low voltage induction from group at electrode both ends
Dress forms two interelectrode chain structures, is formed by chain structure and is twined in the crosslinking of two-plate central region by inducing action
Around.As voltage increases, composite particles are remarkably reinforced under electric field action by interaction, and particle is formed by short chain two
Plate end starts to be started to be closely wound by strong interaction, forms comb teeth-shaped structure and reduces, column structure obviously increases
It is more.
Embodiment 5
The cladded type nucleocapsid composite particles prepared in Example 1, according to the method for embodiment 2 in different ultralow electricity
Pressure observation induction composite particles self assembly the case where, as shown in figure 8, Fig. 8 (a)-(e) respectively represent 0.0013kV/mm,
Design sketch under 0.01kV/mm, 0.1kV/mm, 0.5kV/mm, 1kV/mm electric field when 10s.It can be seen from the figure that with application
Ultra low voltage value increase, induction force that composite particles are subject to increases, and is formed by chain structure by inducing action two
The crosslinking winding of pole plate central region is apparent.
Embodiment 6
Comparative example 1
KimM-H, BaeD-H, ChoiH-J et al. obtain the poly- hexichol of reunion state in ethanol solution by oxidative polymerization method
Amine particle, particle is dispersed in silicone oil, the prepare liquid that grain volume fraction is 5% is obtained, in electric field strength 3.3kV/mm
Under (apply external voltage about 400V), formed along electric field line direction single-stranded, but interchain interaction power is smaller, chain spiral winding
Degree is relatively low.(bibliography Kim, M.H.；Bae,D.H.；Choi,H.J.；Seo,Y.,Synthesis of
semiconducting poly(diphenylamine)particles and analysis of their
electrorheological properties.Polymer 2017,119,40-49.)
Comparative example 2
Cho M-S, Cho Y-H, ChoiH-J et al. prepare using poly (methyl methacrylate) micro-sphere as kernel, with polyphenyl
Amine is the nucleocapsid result particle of nanoshells, and obtained particle conductivity is small, and by External Electrical Field, pole occurs in particle surface and interface
Change, at electric field strength 2kV/mm, the composite particles that quickly form chain structure in the 20s of electric field line direction, but obtain
Grain size is larger, and interchain interaction power is weaker.(bibliography Min S.Cho, Y.H.C., Hyoung J.Choi, Myung
S.Jhon,Synthesis and Electrorheological Characteristics of Polyaniline-Coated
Poly(methyl methacrylate)Microsphere:Size Effect.Langmuir 2003,19,5875-5881.)
Comparative example 3
Katsufumi T, T.W, Atsushi K et al. studies the row of titanium dioxide nanoparticle under the action of an external electric field
For particle is dispersed in silicone oil, the mixing prepare liquid that granule density is 30wt.% is obtained, applies direct current to prepare liquid
, electric field strength 1.0~16kV/mm ranges, particle quickly forms chain structure along electric field line direction, applies external electrical field
Afterwards, significant change occurs for the viscosity for mixing prepare liquid, but the external electrical field applied is larger, easily punctures ITO electrode and destroys
Device.(bibliography Katsufumi T., T.W., Atsushi K., Ryuichi
A.,Electro-rheological behavior of suspension composed of titanium
dioxide nano-particles.Sensors and Actuators A 2004,112,376-380.)
By comparing embodiment and comparative example 1-3, show prepared by the present invention using titanium dioxide as the cladded type core of kernel
Shell structure composite particles can be self-assembly of specific knot compared with (electric field strength can be less than 0.2V/mm) under existing fringing field
Structure has and is different from prior art, and the granule density needed is greatly, compared with electric field (usual electric field strength is more than or equal to 1kV/mm)
The advantage for the self-assembled structures that interchain is not closely wound mutually can be formed., corresponding speed low with regard to its driving voltage be fast, cost
The advantages that cheap, has preferable application prospect in photoelectric field (light valve and smart window).
Embodiment 7
By 2.0g titania nanoparticles through 500 DEG C of calcination processings of annealing for 10 hours, after be scattered in and fill 10g deionizations
The mixing A liquid that suspends is obtained in the 50mL three-necked flasks of water, adjusting solution ph with 20%NaOH solution reaches 9-10.It is stirred in magnetic force
Uniform stirring under device is mixed, mixing speed 400r/min is warming up to 75 DEG C, and 6mL 10%AlCl are added dropwise in 60min dropwise3It is molten
Liquid adjusts pH value with 20%HCl solution, maintains pH value in 8-9 ranges, adjusts acid-base value and promote sodium aluminate solution hydrolysis,
PH value 7-8 is maintained, reacts 60min at 75 DEG C of constant temperature, TiO is made2/Al2O3Nano particle (substance A).
Substance A obtained above is polished, cross-linked styrene layer is prepared using situ aggregation method, specific steps are such as
Under：0.05g above-mentioned substance A are taken, are mixed with 0.3g styrene (St) and 0.017g divinylbenzenes (DVB), ultrasonic disperse
20min obtains mixed liquor, the mixed liquor is added in the methanol solution of 0.16wt% polyvinylpyrrolidones (PVP), surpasses
Sound after five minutes, under ice bath environment, through ultrasonic emulsification decentralized processing 30min, pours into three-necked flask, adds under nitrogen protection
Enter 0.01g potassium peroxydisulfate initiators, mixing speed 800r/min is warming up to 75 DEG C, is kept stirring reaction 6 hours, obtains object
Matter B.
Substance B is further modified by suspo-emulsion polymerization：Obtained substance B is dispersed in 0.16wt% polyethylene
In the methanol solution of pyrrolidones (PVP), 70 μ L methyl methacrylates are rapidly joined, maintain mixing speed, in 75 DEG C of constant temperature
Lower reaction terminates after 14 hours, after mixture is aged 2 hours, three times with deionized water repeated washing, through 50 DEG C of dryings of vacuum, grinds
Substance C, i.e. cladded type nucleocapsid composite particles of the invention are arrived after mill.
Claims (10)
1. a kind of cladded type nucleocapsid composite particles, which is characterized in that be coated on including inner core and successively in described
Shell one, shell two on nuclear structure and shell three, the inner core are titanium dioxide, and the shell one is aluminium oxide, institute
It is poly- (styrene-divinylbenzene) to state shell two, and the shell three is polymethyl methacrylate.
2. cladded type nucleocapsid composite particles according to claim 1, which is characterized in that the inner core is nanometer
Particle, grain size are 25~100nm.
3. the preparation method of cladded type nucleocapsid composite particles according to claim 1 or 2, which is characterized in that including
Following steps：
(1) it takes titanium dioxide granule to be scattered in solvent, aluminium salt is added, hydrolysis obtains substance A；
(2) it takes substance A to be mixed with styrene monomer, divinylbenzene monomers, initiator and emulsifier is added, utilizes emulsion polymerization
Method obtains substance B；
(3) substance B is scattered in emulsifier, methyl methacrylate monomer is added, substance C is obtained using emulsion polymerization.
4. the preparation method of cladded type nucleocapsid composite particles according to claim 3, which is characterized in that the aluminium salt
For any one of sodium metaaluminate, aluminium chloride, aluminum sulfate.
5. the preparation method of cladded type nucleocapsid composite particles according to claim 3, which is characterized in that the initiation
Agent is azo-initiator or inorganic peroxy class initiator.
6. the preparation method of cladded type nucleocapsid composite particles according to claim 3, which is characterized in that the emulsification
Agent is to be added to the methanol solution of water-soluble high-molecular compound.
7. the preparation method of cladded type nucleocapsid composite particles according to claim 3, which is characterized in that further include step
Suddenly (4)：It takes the substance C that step (3) obtains to be scattered in organic solvent, surfactant is added, apply DC electric field and carry out certainly
Assembling.
8. the preparation method of cladded type nucleocapsid composite particles according to claim 7, which is characterized in that described organic
Solvent is at least one of n-undecane, dimethicone, mineral oil, vegetable oil.
9. the preparation method of cladded type nucleocapsid composite particles according to claim 7 or 8, which is characterized in that described
Electric field strength≤1kV/mm of DC electric field.
10. cladded type nucleocapsid composite particles as claimed in claim 1 or 2 are in the application of photoelectric field.
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