CN106317726B - A kind of preparation method of anti-bacterial hydrogel for touch screen surface - Google Patents
A kind of preparation method of anti-bacterial hydrogel for touch screen surface Download PDFInfo
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- CN106317726B CN106317726B CN201610689027.5A CN201610689027A CN106317726B CN 106317726 B CN106317726 B CN 106317726B CN 201610689027 A CN201610689027 A CN 201610689027A CN 106317726 B CN106317726 B CN 106317726B
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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Abstract
The invention discloses a kind of preparation methods of the anti-bacterial hydrogel for touch screen surface, it is with the relatively narrow p-type semiconductor material-nano cuprous oxide of energy gap for basic anti-biotic material, with hydrogel for main dispersant, nano cuprous oxide is added in hydrogel, is prepared by certain step.The present invention is that the surface of touch screen is evenly coated in a kind of semi-solid（Semi-solid can effectively reduce the deep security risk of liquid）, form a film after natural air drying in air, be covered in the surface of touch screen.Anti-bacterial hydrogel can be swept off by bias light, the bacterium of screen surface（Through testing bacteriostasis rate up to 100%）, you can it realizes efficient bactericidal property, and filters out most of blue light, play the role of protecting retina.The preparation method is different from traditional ultraviolet disinfection, more convenient, healthy, environmentally friendly.
Description
Technical field
The present invention relates to multi-functional nanometer material fields, more particularly, to a kind of anti-bacterial hydrogel for touch screen surface
Preparation method.
Background technology
Today's society electronic product is quickly grown, and touch screen is seen everywhere as the product of new era in life, application
Including the related highly sophisticated device such as mobile phone, computer, navigator.While with this high speed development, the use of touch screen exists simultaneously
Two distinct issues：1. there are a large amount of bacteriums for touch screen surface；2. harm of the blue light that screen is emitted to eyes.
Under normal circumstances bacterium to the mankind with harm.Some bacteriums become pathogen, can result in brokenly pneumonia, wound
The diseases such as wind, cholera, typhoid fever, syphilis and pulmonary tuberculosis.Food pollution bacterium, not only causes putrid and deteriorated, and more importantly can
Cause the generation of food poisoning.The general common bacterium for causing food poisoning has：Salmonella, vibrio parahemolyticus, grape
Coccus, proteus, enteropathogenic E. Coli and Shigella etc..Mode of infection include contact, air borne, food, water and
Band bacteria microorganism.
Blue light is that wavelength is in the light with relatively high energy between 400nm--480nm, the blue light meeting in the wavelength
So that the macular area toxin amount in eyes is increased, seriously threatens our eyeground health.Blue-light filtering was in international light association in 2010
In annual meeting, the top optics expert in the world unanimously points out：Shortwave blue light has very high energies, can penetrate the through view of crystalline lens
Film.Blue light illumination retina will produce free radical, and these free radicals can cause retinal pigment epithelium to become feeble and die, and epithelium is thin
The decline of born of the same parents can cause photaesthesia cell to lack nutrient so as to cause vision impairment, and these damages are irreversible.
For touch screen problem of bacteria, current most common method is by alcohol and the ultraviolet sterilization treatment that carries out disinfection.
But alcohol and it is ultraviolet have the shortcomings that its is intrinsic, first alcohol as flammable liquid plus low boiling point easily become life in
Security risk, next alcohol may also penetrate into the circuit element of touch screen in use, if this highly sophisticated device
Not having water-proof function, it will cause irreversible damages.Blue light for the damage problem of eyesight just started until nearly 2 years by
Pay attention to, currently used processing scheme is to the film of anti-blue light on mobile phone sticker, although can play certain effect can also influence
It uses, and excessive processing is done as computer, this large-size screen monitors of auto navigation are typically no, and be simply undoubtedly blue light filtering
A kind of waste of energy.Therefore, it is necessary to develop a kind of more rational, it can solve the problems, such as that bacterium and blue light two are big simultaneously
Technical solution.In theory, optimal scheme is no more than " turning harm into good ", i.e., harmful blue emission is converted to
The exciting energy resource of anti-biotic material.
Invention content
The purpose of the present invention is to provide one kind can realizing efficient bactericidal property but also the most of blue light of filtration, more
Add convenience, the preparation method of health, the environmentally friendly anti-bacterial hydrogel for touch screen surface.
The object of the present invention is achieved like this：
A kind of preparation method of anti-bacterial hydrogel for touch screen surface, is characterized in：
A, the preparation of nano cuprous oxide：
（a）By 2mmol cupric sulfate pentahydrates and 1mmol EDTA（Ethylenediamine tetra-acetic acid）It is dissolved in the deionized water of 10-100 mL
In, and it is stirred 2-200 min；
（b）The step A-a solution prepared is heated to 30-90 DEG C, and the NaOH of a concentration of 0.1-2M of 1-100mL is added
Solution；
（c）After 1-50min, 0.1-5g C are added in solution prepared by step A-b6H6O2（1,4- hydroquinones）, and
Continue to stir 0.5-24h；
（d）Step A-c after reaction, makes solution cooled to room temperature, then centrifuges precipitation, spend respectively
Ionized water, absolute ethyl alcohol are washed, and processing is then dried, obtains nano cuprous oxide；
B, the preparation of hydrogel：
（a）1g Acritamer 940s are dissolved in 20-200ml deionized waters, and are stirred 3-300 min；
（b）It carries out solution prepared by step B-a to be heated to 30-90 DEG C, and continues to stir 4--400 min to carbomer
Complete swelling；
（c）1, the 8- ethohexadiols of 0.1-1g are milled into powder, are added step-wise to solution prepared by step B-b；
（d）Continue to stir, be slowly added to the hyaluronic acid of 0.1-1ml, then add deionized water, continues to stir 5-500
Min obtains hydrogel；
C, the preparation of anti-bacterial hydrogel：
（a）The hydrogel 2ml prepared in step B is cooled to room temperature；
（b）0.01-0.1 grams of nano cuprous oxide for taking step A to prepare, is added in hydrogel and stirs；
（c）Step C-b after reaction, carries out supersound process 5-50min, then encapsulation process, obtains finished product：Antibacterial water-setting
Glue.
In step A, B, C, complexant used is EDTA（Ethylenediamine tetra-acetic acid）, reducing agent C6H6O2（1,4- is to benzene two
Phenol）.
The present invention be with the relatively narrow p-type semiconductor material-nano cuprous oxide of energy gap be basic anti-biotic material,
With hydrogel for main dispersant, nano cuprous oxide is added in hydrogel, is prepared by certain step.The present invention's
Anti-bacterial hydrogel is the surface that touch screen is evenly coated in a kind of semi-solid（Semi-solid can effectively reduce liquid and go deep into
Security risk）, form a film after natural air drying in air, be covered in the surface of touch screen, coating has good antibacterial ability, raw
Object small toxicity.Nano cuprous oxide is the relatively narrow p-type semiconductor material of energy gap, and energy gap is only 2.17ev, this makes
Nano cuprous oxide can be excited under the catalytic action of visible light, and use is had no effect on after anti-bacterial hydrogel drying, by
The bacterium of bias light, screen surface can be swept off（Through testing bacteriostasis rate up to 100%）, you can realize efficient bactericidal property,
And most of blue light is filtered out, plays the role of protecting retina.
The present invention further improves the application of nano cuprous oxide by the way that nano cuprous oxide to be embedded into hydrogel
Range and extend cuprous oxide shelf-life, then by simply smear anti-bacterial hydrogel can be equably supported on it is various
Precision instrument touch screen surface, under the catalytic action of visible light, you can realize efficient bactericidal property, prevent the numerous of bacterium
It grows, reduces infection, and most of blue light can be filtered, reduce injury of the blue light to eyes during use.This
Invention is different from general sterilizing and anti-blue light, it unifies the two, has the following advantages that：1, healthy：It is basic to human skin
Fanout free region；2, conveniently：Only need to simply smear can be normal, forms a film after dry and is easy to tear；3, efficiently：High antibacterial effect and
Absorb blue light efficiency；4, economical and universality.
Description of the drawings
Fig. 1 is that the SEM of synthesized nano cuprous oxide schemes, and pattern is regular square structure, and size is about 500nm；
Fig. 2 is the optical picture of anti-bacterial hydrogel, drying and forming-film（It is red）；
Fig. 3 is that the SEM of anti-bacterial hydrogel schemes, and the cuprous oxide crystal of square pattern is dispersed in hydrogel；
Fig. 4 is the schematic diagram that anti-bacterial hydrogel is applied to handset touch panel surface, drying and forming-film.
Specific implementation mode
It with reference to embodiment and compares attached drawing the present invention will be described in further detail, it should be understood that the model of the present invention
Enclose the non-range for being only limitted to these embodiments.
Embodiment 1：
A, the preparation of nano cuprous oxide：
（a）By 2mmol cupric sulfate pentahydrates and 1mmol EDTA（Ethylenediamine tetra-acetic acid）It is dissolved in the deionized water of 30mL, and
It is stirred 30 min；
（b）The step A-a solution prepared is heated to 55 DEG C, and the NaOH solution of a concentration of 0.6M of 25mL is added；
（c）After 40min, 0.5g C are added in solution prepared by step A-b6H6O2（1,4- hydroquinones）, and continue
Stir 1h；
（d）Step A-c after reaction, makes solution cooled to room temperature, then centrifuges precipitation, spend respectively
Ionized water, absolute ethyl alcohol are washed, and processing is then dried, obtains nano cuprous oxide；
B, the preparation of hydrogel：
（a）1g Acritamer 940s are dissolved in 50ml deionized waters, and are stirred 120 min；
（b）It carries out solution prepared by step B-a to be heated to 50 DEG C, and continues to stir 3h to carbomer complete swelling；
（c）1, the 8- ethohexadiols of 0.2g are milled into powder, are added step-wise to solution prepared by step B-b；
（d）Continue to stir, be slowly added to the hyaluronic acid of 0.5ml, then addition is appropriate（Not true property term cannot be used,
Specific or deletion）Deionized water, continue stir 120 min, obtain hydrogel；
C, the preparation of anti-bacterial hydrogel：
（a）The hydrogel 2ml prepared in step B is cooled to room temperature；
（b）0.05 gram of nano cuprous oxide for taking step A to prepare, is added in hydrogel and stirs；
（c）Step C-b after reaction, carries out supersound process 60min, then encapsulation process, obtains having antibacterial activity
Semisolid gel.
Embodiment 2：
A, the preparation of nano cuprous oxide：
（a）By 2mmol cupric sulfate pentahydrates and 1mmol EDTA（Ethylenediamine tetra-acetic acid）It is dissolved in the deionized water of 10 mL,
And it is stirred 2min；
（b）The step A-a solution prepared is heated to 30 DEG C, and the NaOH solution of a concentration of 0.1M of 1mL is added；
（c）After 1min, 0.1g C are added in solution prepared by step A-b6H6O2（1,4- hydroquinones）, and continue to stir
Mix 0.5-24h；
（d）Step A-c after reaction, makes solution cooled to room temperature, then centrifuges precipitation, spend respectively
Ionized water, absolute ethyl alcohol are washed, and processing is then dried, obtains nano cuprous oxide；
B, the preparation of hydrogel：
（a）1g Acritamer 940s are dissolved in 20ml deionized waters, and are stirred 3 min；
（b）It carries out solution prepared by step B-a to be heated to 30 DEG C, and it is completely molten to carbomer to continue 4 min of stirring
It is swollen；
（c）1, the 8- ethohexadiols of 0.1g are milled into powder, are added step-wise to solution prepared by step B-b；
（d）Continue to stir, be slowly added to the hyaluronic acid of 0.1ml, then add deionized water, continues to stir 5 min, obtain
To hydrogel；
C, the preparation of anti-bacterial hydrogel：
（a）The hydrogel 2ml prepared in step B is cooled to room temperature；
（b）0.01 gram of nano cuprous oxide for taking step A to prepare, is added in hydrogel and stirs；
（c）Step C-b after reaction, carries out supersound process 5min, then encapsulation process, obtains finished product：Anti-bacterial hydrogel.
Embodiment 3：
A, the preparation of nano cuprous oxide：
（a）By 2mmol cupric sulfate pentahydrates and 1mmol EDTA（Ethylenediamine tetra-acetic acid）It is dissolved in the deionized water of 100 mL,
And it is stirred 200 min；
（b）The step A-a solution prepared is heated to 90 DEG C, and the NaOH solution of a concentration of 2M of 100mL is added；
（c）After 50min, 5g C are added in solution prepared by step A-b6H6O2（1,4- hydroquinones）, and continue to stir
It mixes for 24 hours；
（d）Step A-c after reaction, makes solution cooled to room temperature, then centrifuges precipitation, spend respectively
Ionized water, absolute ethyl alcohol are washed, and processing is then dried, obtains nano cuprous oxide；
B, the preparation of hydrogel：
（a）1g Acritamer 940s are dissolved in 200ml deionized waters, and are stirred 300 min；
（b）It carries out solution prepared by step B-a to be heated to 30-90 DEG C, and it is complete to carbomer to continue 400 min of stirring
Full swelling；
（c）1, the 8- ethohexadiols of 1g are milled into powder, are added step-wise to solution prepared by step B-b；
（d）Continue to stir, be slowly added to the hyaluronic acid of 1ml, then add deionized water, continues to stir 500 min, obtain
To hydrogel；
C, the preparation of anti-bacterial hydrogel：
（a）The hydrogel 2ml prepared in step B is cooled to room temperature；
（b）0.1 gram of nano cuprous oxide for taking step A to prepare, is added in hydrogel and stirs；
（c）Step C-b after reaction, carries out supersound process 50min, then encapsulation process, obtains finished product：Antibacterial water-setting
Glue.
Embodiment 4：
Application on mobile phone screen：
（a）Under ventilated environment, takes anti-bacterial hydrogel to be applied to mobile phone and use surface；
（b）It can form a film after hydrogel drying, open mobile phone screen（It does not influence to use）；
（c）It opens mobile phone screen to keep in service, 30min screen surfaces bacterium can be fully erased；
（d）Film after the drying of screen surface of tearing hydrogel, bacterium and fungi and dust can be fully erased.
Embodiment 5：
Anti-bacterial hydrogel is loaded on the touchscreen
（a）Touch screen surface is simply cleared up, is advisable with not seeing big spot；
（b）Anti-bacterial hydrogel is poured on touch screen surface, is uniformly smeared with hand or other tools；
（c）It is placed at room temperature, ventilation waits for that its automatic drying forms a film；
（d）It opens touch screen and utilizes screen itself illumination, sterilize under anti-bacterial hydrogel " turning harm into good " effect；
（e）Film is torn off after a period of time, surface bacteria and some small spots can be fully erased.
Claims (2)
1. a kind of preparation method of anti-bacterial hydrogel for touch screen surface, it is characterised in that：
A, the preparation of nano cuprous oxide：
（a）2mmol cupric sulfate pentahydrates and 1mmol EDTA are dissolved in the deionized water of 10-100 mL, and are stirred 2-200
min；
（b）The step A-a solution prepared is heated to 30-90 DEG C, and the NaOH solution of a concentration of 0.1-2M of 1-100mL is added；
（c）After 1-50min, 0.1-5g C are added in solution prepared by step A-b6H6O2, and continue to stir 0.5-24h；
（d）Step A-c after reaction, makes solution cooled to room temperature, then centrifuges precipitation, use deionization respectively
Water, absolute ethyl alcohol are washed, and processing is then dried, obtains nano cuprous oxide；
B, the preparation of hydrogel：
（a）1g Acritamer 940s are dissolved in 20-200ml deionized waters, and are stirred 3-300 min；
（b）It carries out solution prepared by step B-a to be heated to 30-90 DEG C, and it is complete to carbomer to continue stirring 4--400 min
Swelling；
（c）1, the 8- ethohexadiols of 0.1-1g are milled into powder, are added step-wise to solution prepared by step B-b；
（d）Continue to stir, be slowly added to the hyaluronic acid of 0.1-1ml, then add deionized water, continues to stir 5-500 min,
Obtain hydrogel；
C, the preparation of anti-bacterial hydrogel：
（a）The hydrogel 2ml prepared in step B is cooled to room temperature；
（b）0.01-0.1 grams of nano cuprous oxide for taking step A to prepare, is added in hydrogel and stirs；
（c）Step C-b after reaction, carries out supersound process 5-50min, then encapsulation process, obtains finished product：Anti-bacterial hydrogel.
2. a kind of preparation method of anti-bacterial hydrogel for touch screen surface according to claim 1, it is characterised in that：
Anti-bacterial hydrogel energy drying and forming-film used.
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