CN106883469A - Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares the high-strength method without quick isolation medical glove high - Google Patents
Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares the high-strength method without quick isolation medical glove high Download PDFInfo
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- CN106883469A CN106883469A CN201710139685.1A CN201710139685A CN106883469A CN 106883469 A CN106883469 A CN 106883469A CN 201710139685 A CN201710139685 A CN 201710139685A CN 106883469 A CN106883469 A CN 106883469A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
- C08L7/02—Latex
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The present invention relates to composite and medical instruments field, specially a kind of Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares the high-strength method without isolation medical glove quick, high.The Graphene of electric field treatment is fitted with modified hexagonal nano lamella boron nitride compound, form the dispersion liquid of stabilization, pH is in 4.5~7 scopes.It is subsequently dispersed in latex, ‰~10wt of its solid masses ratio 0.1wt ‰ are combined, and finally prepare medical glove.Different from conventional graphite alkene gloves, gloves prepared by the present invention are less prone to the defect that weathering stability is poor, Graphene is rotten and burnt hair shades.After Graphene is compound with the few layer boron nitride of the nanometer of the title with " white graphite alkene ", tensile strength, toughness, the heat conduction of latex medical glove can be strengthened, effectively intercept the infiltration of viral liquid.The characteristics of present invention has scientific in principle, inert non-toxic, good weatherability, can produce thermally-stabilised, high heat conduction, the gloves of isolation high.
Description
Technical field
The present invention relates to composite and medical instruments field, specially a kind of Graphene laminating hexagonal nano lamella nitridation
Boron composite emulsion prepares the high-strength method without isolation medical glove quick, high.
Background technology
Medical latex glove is not only the indispensable medical supplies of doctor, is also the standing article of family life.It has good
Health isolation performance and excellent glued membrane intensity.Research report shows：The glued membrane of medical gloves can effectively shield venereal disease, Chinese mugwort
Grow the pathogeny body of the diseases such as disease.Emgloves elasticity higher assigns its preferable grasping performance and the docile performance of shape.It is this
Characteristic is that any other material is all irreplaceable, is also still to use medical latex glove both at home and abroad at present as surgical medical
The main cause of articles for use.
Proper use of medical gloves, can significantly reduce bacterium infection probability.Currently used for the material master of medical gloves
Have：Natural latex rubber, butyronitrile latex rubber represent etc. synthetic latex.Conventional gloves material also occurs some intensity
Not enough, cause crackle or breakage that naked eyes cannot be observed, cause to infect.Particularly breakneck infectiousness operation doctor
During treatment, the cost of this risk seems very huge.
Therefore, preparing has high barrier, and it is industry development that the advanced composite material (ACM) of high-elastic high intensity makes medical gloves
An important directions.Graphene and hexagonal nano lamella boron nitride are two-dimension nano materials, with high piece footpath/thickness
Than having good toughness and impermeability[1].On the one hand, all modified graphenes, graphene oxide and reduced graphene be all
It is changed into grey black after being long placed in, the eigenstate Graphene of even CVD can also be presented grey after reuniting.So, merely by graphite
It is unstable unavoidably to there is color and luster in alkene compounded latex gloves, and influence uses perception and performance weatherability, and the Graphene of addition is got over
Many, latex is more grey darker[2]。
Contrast international patent application：PCT/IN2014/000711, publication No.:WO/2015/068174, title：
GRAPHENE BASED POLYMER COMPOSITES FOR PRODUCING CONDOMS WITH HIGH HEAT
TRANSFER, IMPROVED a kind of SENSITIVITY AND CAPACITY FOR DRUG DELIVERY (graphene-based polymerizations
Thing composite production high heat conduction, low allergy, can drug delivery gloves), text in be also use simple Graphene or derivative
Thing carrys out the polymers manufacturing gloves such as compounded latex, equally also can maximum probability run into above mentioned problem, Graphene and boron nitride
Nanoscale twins fitting body compounded natural rubber latex can obtain very stable transmitance and colour properties, and the product of preparation has high-strength nothing
Isolation feature quick, high.
Bibliography：
[1]Kerr L.,Chaput M.,Boyd S.,Galevi E.,Millward P.,Characterization
and creation of defects in condoms,Journal of testing and evaluation,2001,29,
214；
[2]Maria Iliuta,Claudio Silvaa,b,Scott Herrickc,Mark McGlothlinc,
Aravind Vijayaraghavana,Graphene and water-based elastomers thin-film
composites by dip-moulding.Carbon,106,2016,228-232。
The content of the invention
Prepared it is an object of the invention to provide a kind of Graphene laminating hexagonal nano lamella boron nitride composite emulsion high-strength
Method without isolation medical glove quick, high.Gained gloves than pure Graphene composite glove ratio, with more stable color and luster and printing opacity
Degree, inertia not allergy, while also can effectively strengthen barrier, mechanical property, thermal conductivity.
To achieve these goals, the present invention uses following technical scheme：
A kind of Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without the quick medical glove that completely cuts off high
Method, forms pH 4.5 by the graphene aqueous solution of electric field treatment and the modified hexagonal nano lamella boron nitride aqueous solution first
Spontaneous laminating in~7 dispersion liquids, both solid part mass ratios are 1~20 in dispersion liquid:1~20, both concentration all exists
Between ‰~10wt of 0.1wt ‰；Applying method is：The solid of hexagonal nano lamella boron nitride is obtained and stone after electric treatment by modified
The opposite electric charge of black alkene surface charge, both high-specific area nano materials, by the spontaneous suction of a large amount of xenogenesis electric charges in surface
Draw and fit and gather together, form fitting body, the reunion scale of laminating dispersion liquid is controlled by the pH value for controlling dispersion liquid total
And dispersion stabilization；
Then the dispersion liquid of the fitting body is well mixed with latex solution, is made compound latex solution；Laminating dispersion liquid is consolidated
Content is ‰~10wt of 0.05wt ‰ with the solid part mass ratio in latex；Compound latax is by gloves normal process stream
Journey, is made gloves finished product.
Described Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without quick isolation medical glove high
Method, when laminating dispersion liquid is prepared, the solid of fitting body Graphene and hexagonal nano lamella boron nitride part mass ratio
It is 1~20:1~20；The dispersion of fitting body is aqueous dispersions of the pH 4.5~7, according to the species and ratio of Graphene
Regulation.
Described Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without quick isolation medical glove high
Method, when laminating dispersion liquid is prepared, the solid part mass ratio of fitting body filler and latex be 0.05wt ‰~
10wt‰。
Described Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without quick isolation medical glove high
Method, hexagonal nano lamella boron nitride used is hexagonal boron nitride single layer structure or few Rotating fields prepared by various methods, nitrogen
Change the number of plies of boron for 1~30 layer, i.e. thickness are below 10nm, each interlamellar spacing of hexagonal boron nitride is 0.335nm；Hexagonal nano used
Lamella boron nitride obtains the electric charge opposite with the graphene film surface to be fitted with surfactant-modified；Surfactant is
Nonionic surface active agent, anion surfactant, a type of cationic surfactant or compounding type.
Described Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without quick isolation medical glove high
Method, fit boron nitride Graphene be electric field treatment Graphene, processing method is simple positive-negative electrode plate to Graphene
Solution applies electric field, so as to load graphenic surface electric charge；Or, the charged mesh of Graphene colloid is completed with electrodialysis plant
's.
Described Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without quick isolation medical glove high
Method, the Graphene of electric field treatment is the Graphene of highly-hydrophilic, high transmission rate, and the oxygen content of Graphene is more than 20wt%,
The number of plies is less than three layers.
Design philosophy of the invention is：
Hexagonal boron nitride BN and graphite are all isoelectronic species layer structures, and the title for having white graphite, single-layer silicon nitride boron is referred to as
" white graphite alkene " clear, colorless, with good lubricity, thermal conductivity and materialization inertia do not have allergy row with biological cell
Different effect.Due to boron nitride nanosheet water white transparency in itself, even if nanometer stacking there will not be any color change.With reference to two
Aspect, by the technology of the present invention angle and means, the soft group that hexagonal nano lamella boron nitride and Graphene are passed through into electrostatic attraction
It is poly-, form fitting body, then again with latex composite manufacturing gloves.Both content of the Graphene in latex had been reduced, high transparency had been kept
Degree, strengthens the heat conductivility of gloves again, does not reduce the mechanical property of gloves also.
Compared with prior art, advantages of the present invention and beneficial effect are：
1st, the Graphene of electric field treatment is fitted and is combined by the present invention with modified hexagonal nano lamella boron nitride, forms stabilization
Dispersion liquid, pH is in 4.5~7 scopes.It is subsequently dispersed in latex, ‰~10wt of its solid masses ratio 0.05wt ‰ are combined,
Finally prepare medical glove.Different from conventional graphite alkene gloves, gloves prepared by the present invention be less prone to weathering stability it is poor,
Graphene goes bad and the defect of burnt hair obfuscation.Graphene is combined with the few layer boron nitride of the nanometer of the title with " white graphite alkene "
Afterwards, tensile strength, toughness, the heat conduction of latex medical glove can be strengthened, the infiltration of viral liquid is effectively intercepted.
2nd, the characteristics of present invention has scientific in principle, inert non-toxic, good weatherability, can produce thermally-stabilised, high heat conduction, height
The gloves of isolation.
Brief description of the drawings
Fig. 1 Graphenes laminating hexagonal nano lamella boron nitride composite emulsion is prepared and high-strength completely cuts off medical glove without quick, high
Method flow diagram.
Fig. 2 Graphenes laminating hexagonal nano lamella boron nitride composite emulsion is prepared and high-strength completely cuts off medical glove without quick, high
Material microstructure schematic diagram.In figure, 1 medical glove；2 rubber particles；3 Graphenes and boron nitride lamella fitting body.
Specific embodiment
As shown in figure 1, Graphene of the present invention laminating hexagonal nano lamella boron nitride composite emulsion prepare it is high-strength without it is quick, high every
The method flow of exhausted medical glove is as follows：
The Graphene colloid and boron nitride colloid of negatively charged/positive charge, are fitted by electrostatic attraction, form Graphene/nitrogen
Change boron nanoscale twins fitting body, after adding latex solution, be made the compound medical glove of Graphene/boron nitride nanometer sheet layer material.
As shown in Fig. 2 Graphene of the present invention laminating hexagonal nano lamella boron nitride composite emulsion prepare it is high-strength without it is quick, high every
The material microstructure of exhausted medical glove is as follows：The jacket wall of medical glove 1 is rubber particles 2 and Graphene and boron nitride lamella patch
Fit 3 constitute.
In specific implementation process, the method comprises the steps of firstly, preparing Graphene/hexagonal nano lamella boron nitride laminating liquid solution：
(preferred scope is ‰~10wt of 0.1wt ‰：‰~2wt of 0.5wt ‰) concentration graphene aqueous solution by band after electric-field charge
Upper negative electrical charge, under conditions of stirring, by ‰~10wt of 0.1wt ‰, (preferred scope is：‰~4wt of 1wt ‰) concentration six sides
The solution of boron nitride nanometer sheet layer material is with surfactant-modified.Then the two mixed, be allowed to Electrostatic Absorption
Laminating, pH value is adjusted by controlling in solution the ratio of graphene oxide or hydrochloric acid in water, is allowed in 4.5~7 scopes, such as
Hydrophilic graphene oxide or watery hydrochloric acid provide the acidity on basis, with the content of water, the modified graphene of other species and modified
Hexagonal nano lamella boron nitride comprehensively adjusts final pH value together.Then ultrasound, makes fitting body be uniformly dispersed.Fitting body disperses
In liquid, all kinds of Graphene solid masses and boron nitride mass ratio are that (preferred scope is 5wt%~2000wt%：40wt%~
80wt%).The dispersion liquid of fitting body is well mixed with latex solution, is made compound latex solution.Fitting body solution solids filler with
Solid in latex part mass ratio is that (preferred scope is ‰~10wt of 0.05wt ‰：‰~0.5wt of 0.2wt ‰).Compound
Latax is made gloves finished product by gloves normal process flow.
Wherein, hexagonal nano lamella boron nitride used can be that 1~30 layer or so, i.e. thickness are below 10nm (six side's nitrogen
It is 0.335nm to change each interlamellar spacing of boron).Hexagonal nano lamella boron nitride used can be obtained and to be pasted with surfactant-modified
The opposite electric charge in the graphene film surface of conjunction.Surfactant can be nonionic surface active agent, anion surface active
Agent, a type of cationic surfactant or a certain proportion of compounding type.The Graphene of electric field treatment is highly-hydrophilic,
The Graphene of high transmission rate, the oxygen content of Graphene is more than 20wt%, and the number of plies is less than three layers, electrically with the hexagonal nano to be combined
Lamella boron nitride solution gel phase is anti-.
The dispersion pH value of adjusting adhesive body, may be selected water graphene oxide and modified hexagonal nano-flake for convenience
Layer boron nitride system, or other non-oxidized graphite alkene and watery hydrochloric acid and modified hexagonal nano lamella boron nitride system, by adjusting
Concentration and its mutually stripping, obtain the pH value for needing in water saving.The Graphene of laminating boron nitride is the Graphene of electric field treatment,
Processing method can be that simple positive-negative electrode plate applies electric field to graphene solution, so as to load graphenic surface electric charge, or use
Electrodialysis plant completes the charged purpose of Graphene colloid.
Below, by embodiment and test result, the present invention is described in more detail.
Embodiment 1
In the present embodiment, Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without isolation doctor quick, high
The method for treating gloves is as follows：
It is prepared by Graphene/hexagonal nano lamella boron nitride laminating liquid solution：1 ㎏ concentration is the graphene oxide water of 2wt ‰
Solution is by taking negative electrical charge after electric-field charge.The ㎏ of the aqueous solution 1 containing the hexagonal boron nitride nanosheet layer materials of 0.1wt ‰ is used
The polyvinyl pyrrolidone modified of 0.1wt ‰.Then by the two mixing ultrasound, it is allowed to be uniformly dispersed.Then clean
Mixing tank in add 10Kg concentration be the Heveatex of 60wt%, the 2Kg for above preparing is gradually added under agitation dense
Graphene/hexagonal nano lamella boron nitride laminating the liquid solution for 2.1wt ‰ is spent, after addition is finished, 0.1wt ‰ can be in right amount added
Dispersion stabilizer paregal O (alkyl polyoxyethylene ether), persistently stirring 1 hour is well mixed it.Now regulation viscosity is
15mPas or so.Will it is compound after glue stand 24 hours or so, it is fully cured, be subsequently adding in impregnator and soaked
Stain post-processing twice is produced, and finally carries out being got product after performance test passes through.
Then the performance advantage of the prepared new material of the present invention and medical gloves product is verified, inventor is according to national standard
GB10213-2006《Single use rubber examination glove》, to the compound doctor of Graphene/latex of the batch prepared by embodiment 1
Sampling observation test is carried out with gloves, test average result contrast Standard is as shown in table 1：
Table 1：The tensile property index of this example batch sampling observation composite medical gloves and contrast
By table in fact inspection data it could be assumed that：The class Product checking result of classification 1：The minimum value of aging preceding breaking tenacity is obvious
Higher than GB 62.8%, the minimum value of aging preceding elongation at break improves 11.4% than GB.The minimum of aging rear breaking tenacity
Value is higher than GB 58.3%, and the minimum value of aging rear elongation at break improves 14% than GB.The class Product checking knot of classification 2
Really：Obviously higher than GB 64.2%, the minimum value of aging preceding elongation at break is carried the minimum value of aging preceding breaking tenacity than GB
It is high by 14.0%.The minimum value of aging rear breaking tenacity is higher than GB 50%, and the minimum value of aging rear elongation at break is carried than GB
It is high by 20%.
Embodiment 2
In the present embodiment, Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares high-strength without isolation doctor quick, high
The method for treating gloves is as follows：
It is prepared by Graphene/hexagonal nano lamella boron nitride laminating liquid solution：1 ㎏ concentration for 1wt ‰ graphene oxide and
Concentration takes negative electrical charge for the amination graphene aqueous solution of 1wt ‰ after electrodialysis is charged.The hexagonal boron nitrides of 0.1wt ‰ will be contained
The ㎏ of the aqueous solution 1 of nanoscale twins material is modified with the dodecyl sodium sulfate of 0.1wt ‰.Then by the two mixing ultrasound,
It is allowed to be uniformly dispersed.Then it is the Heveatex of 60wt% 10Kg concentration to be added in clean mixing tank, in stirring condition
Under to be gradually added the 2Kg concentration that above prepares be Graphene/hexagonal nano lamella boron nitride laminating liquid solution of 2.1wt ‰, plus
Enter after finishing, can in right amount add the dispersion stabilizer polyvinylpyrrolidones of 0.1wt ‰, persistently stirring 1 hour makes its mixing equal
It is even.Now regulation viscosity is 20mPas or so.Glue after will be compound stands 24 hours or so, it is fully cured, then
The production of post-processing twice is impregnated in addition impregnator, finally carries out being got product after performance test passes through.
Embodiment result shows, prepared by Graphene of the present invention laminating hexagonal nano lamella boron nitride composite emulsion into high-strength nothing
Isolation medical glove quick, high is dipped into the reducing liquids such as hydrazine hydrate, is not changed colour, film resistivity inside and outside medical glove
Also it is not changed in, illustrates that the medical glove of rubber particles, Graphene and boron nitride lamella fitting body composition is very stable very safe
, prepared medical glove product has splendid barrier property and excellent mechanical property.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, under the premise of the spirit for not departing from the invention design, this area ordinary skill technical staff is to the present invention
Various modifications and improvement that technical scheme is made, all should fall into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares the high-strength side without quick isolation medical glove high
Method, it is characterised in that first by the graphene aqueous solution of electric field treatment and modified hexagonal nano lamella boron nitride aqueous solution shape
The spontaneous laminating in 4.5~7 dispersion liquids into pH, both solid part mass ratios are 1~20 in dispersion liquid:1~20, both
Concentration is all between ‰~10wt of 0.1wt ‰；Applying method is：The solid of hexagonal nano lamella boron nitride is obtained and electricity by modified
The electric charge of graphenic surface opposite charge after treatment, both high-specific area nano materials, by a large amount of xenogenesis electric charges in surface
Spontaneous attraction and fitting gather together, form fitting body, laminating dispersion liquid is controlled by the pH value for controlling dispersion liquid total
Reunion scale and dispersion stabilization；
Then the dispersion liquid of the fitting body is well mixed with latex solution, is made compound latex solution；Laminating dispersion liquid solid content
It is ‰~10wt of 0.05wt ‰ with the solid part mass ratio in latex；Compound latax by gloves normal process flow,
It is made gloves finished product.
2. according to described in claim 1 Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares it is high-strength without it is quick height every
The method of exhausted medical glove, it is characterised in that when laminating dispersion liquid is prepared, fitting body Graphene and hexagonal nano lamella nitrogen
The solid part mass ratio for changing boron is 1~20:1~20；The dispersion of fitting body is aqueous dispersions of the pH 4.5~7, root
According to the species and proportion adjustment of Graphene.
3. according to described in claim 1 Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares it is high-strength without it is quick height every
The method of exhausted medical glove, it is characterised in that when laminating dispersion liquid is prepared, the solid part quality of fitting body filler and latex
Ratio is ‰~10wt of 0.05wt ‰.
4. according to described in claim 1 Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares it is high-strength without it is quick height every
The method of exhausted medical glove, it is characterised in that hexagonal nano lamella boron nitride used is hexagonal boron nitride prepared by various methods
Single layer structure or few Rotating fields, the number of plies of boron nitride is that 1~30 layer, i.e. thickness are below 10nm, each interlamellar spacing of hexagonal boron nitride
It is 0.335nm；Hexagonal nano lamella boron nitride used is obtained and the graphene film surface phase to be fitted with surfactant-modified
Anti- electric charge；Surfactant is nonionic surface active agent, anion surfactant, the one of cationic surfactant
Type or compounding type.
5. according to described in claim 1 Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares it is high-strength without it is quick height every
The method of exhausted medical glove, it is characterised in that the Graphene of laminating boron nitride is the Graphene of electric field treatment, processing method is letter
Single positive-negative electrode plate applies electric field to graphene solution, so as to load graphenic surface electric charge；Or, completed with electrodialysis plant
The charged purpose of Graphene colloid.
6. according to described in claim 1 Graphene laminating hexagonal nano lamella boron nitride composite emulsion prepares it is high-strength without it is quick height every
The method of exhausted medical glove, it is characterised in that the Graphene of electric field treatment is the Graphene of highly-hydrophilic, high transmission rate, graphite
The oxygen content of alkene is more than 20wt%, and the number of plies is less than three layers.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110358123A (en) * | 2019-07-19 | 2019-10-22 | 长沙而道新能源科技有限公司 | A kind of high thermal conductivity graphene composite film and preparation method thereof |
| CN111499935A (en) * | 2020-05-22 | 2020-08-07 | 中北大学 | Modified graphene oxide/natural rubber high-thermal-conductivity composite material |
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| CN111499935A (en) * | 2020-05-22 | 2020-08-07 | 中北大学 | Modified graphene oxide/natural rubber high-thermal-conductivity composite material |
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