CN112175246A - Preparation and application of carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film - Google Patents
Preparation and application of carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film Download PDFInfo
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- CN112175246A CN112175246A CN202011161187.5A CN202011161187A CN112175246A CN 112175246 A CN112175246 A CN 112175246A CN 202011161187 A CN202011161187 A CN 202011161187A CN 112175246 A CN112175246 A CN 112175246A
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- carboxymethyl cellulose
- graphene oxide
- molybdenum disulfide
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- 229920002134 Carboxymethyl cellulose Polymers 0.000 title claims abstract description 78
- 239000001768 carboxy methyl cellulose Substances 0.000 title claims abstract description 70
- 235000010948 carboxy methyl cellulose Nutrition 0.000 title claims abstract description 70
- 239000008112 carboxymethyl-cellulose Substances 0.000 title claims abstract description 70
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 45
- 230000002829 reductive effect Effects 0.000 title claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 27
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 27
- 239000011733 molybdenum Substances 0.000 title claims abstract description 27
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 27
- 239000004332 silver Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 16
- 235000011187 glycerol Nutrition 0.000 claims description 11
- 239000002114 nanocomposite Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 6
- 239000012498 ultrapure water Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 24
- 238000005580 one pot reaction Methods 0.000 abstract 1
- 229910052961 molybdenite Inorganic materials 0.000 description 14
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 14
- 239000012528 membrane Substances 0.000 description 13
- 235000013305 food Nutrition 0.000 description 9
- 238000002834 transmittance Methods 0.000 description 8
- 241000588724 Escherichia coli Species 0.000 description 5
- 241000191967 Staphylococcus aureus Species 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 229920001222 biopolymer Polymers 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 239000005003 food packaging material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000011206 ternary composite Substances 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/26—Cellulose ethers
- C08J2301/28—Alkyl ethers
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
Abstract
The invention discloses a preparation method and application of a carboxymethyl cellulose/reductive graphene oxide-molybdenum disulfide-silver antibacterial film, wherein a reductive graphene oxide-molybdenum disulfide-silver (rGO-MoS2-Ag) composite material synthesized by a one-pot method is combined with carboxymethyl cellulose (CMC) by a solution casting method to prepare the carboxymethyl cellulose/reductive graphene oxide-molybdenum disulfide-silver antibacterial film with stronger tensile strength and antibacterial property.
Description
Technical Field
The invention relates to the technical field of antibacterial material preparation, and particularly relates to preparation and application of a carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film.
Background
Carboxymethyl cellulose (CMC) is a semisynthetic derivative of the water-soluble anionic linear polysaccharide of cellulose. Carboxymethyl cellulose (CMC) has good film-forming properties, biocompatibility, gas barrier properties, hydrophilicity, and a stable internal lattice structure, and is widely used in food packaging, food processing, and pharmaceutical industries. At the same time, CMC has also been used to improve the performance of polymer-based composite films and edible coatings, thereby improving the shelf life of food products. However, it has poor mechanical properties, which limits its further use in food packaging.
Microorganisms multiply under suitable conditions, for example bacteria and molds multiply on the surface of food to spoil the food and even become a source of contamination by bacteria or virus transmission. The antibacterial film is used for packaging the food, oxygen, carbon dioxide, moisture and the like in the air can be blocked, the antibacterial effect is achieved by controlling the growth conditions of microorganisms, the original flavor of the food can be guaranteed, and the shelf life of the food can be prolonged.
Mixing rGO-MoS2Adding the-Ag ternary antibacterial compound serving as a nano filler into carboxymethyl cellulose (CMC), and preparing the CMC/rGO-MoS by adopting a solution casting method2The Ag composite film can improve the mechanical property of the CMC biopolymer film, adjust the light transmittance, and more importantly, can endow the CMC biopolymer film with stronger antibacterial activity, and has potential application in the field of antibacterial food packaging materials.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a preparation method and application of a carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film.
In order to achieve the purpose, the invention adopts the following technical scheme:
carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film prepared from reductive graphene oxide-molybdenum disulfide-silver (rGO-MoS)2-Ag) ternary antibacterial compound is used as a nano filler, glycerin is used as a plasticizer, and the glycerin is added into carboxymethyl cellulose (CMC) by adopting a solution casting method to prepare the carboxymethyl cellulose/reductive graphene oxide-molybdenum disulfide-silver antibacterial film with stronger tensile capability and antibacterial property.
A preparation method of a carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film comprises the following steps:
(1) slowly dissolving carboxymethyl cellulose in ultrapure water under vigorous stirring, dropwise adding glycerol as a plasticizer, heating to 75-105 deg.C and maintaining for 20-40min to ensure complete dissolution of carboxymethyl cellulose;
(2) dissolving the reductive graphene oxide-molybdenum disulfide-silver nano composite material in ultrapure water, homogenizing by using a high-speed shearing homogenizer, and then adding the material into a carboxymethyl cellulose solution while stirring for uniformly mixing;
(3) heating the mixed solution gradually under the action of a magnetic stirrer, uniformly casting the mixed solution on a glass flat plate after the solution is boiled, and placing the glass flat plate in a fume hood for drying.
Preferably, in the step (1), the mass ratio of the carboxymethyl cellulose to the glycerol is (3-5): 1, homogenizing for 5-10 min.
Preferably, in the step (2), the percentage of the reducing graphene oxide-molybdenum disulfide-silver nanocomposite is 1% -20%.
Preferably, in the step (3), the drying temperature of the antibacterial film is 15 to 35 ℃.
The carboxymethyl cellulose and the reductive graphene oxide-molybdenum disulfide-silver antibacterial film in the invention are applied to antibacterial packaging.
Compared with the prior art, the invention has the beneficial effects that: the composite membrane synthesized by the method not only can improve the mechanical property of the carboxymethyl cellulose biopolymer membrane and adjust the light transmittance, but also can endow the carboxymethyl cellulose biopolymer membrane with stronger antibacterial activity, and has application value in the field of antibacterial food packaging materials.
Drawings
In order to more particularly and intuitively illustrate an embodiment of the present invention or a prior art solution, a brief description of the drawings needed for use in the description of the embodiment or the prior art will be provided below.
FIG. 1 shows the addition of different concentrations of rGO-MoS2CMC/rGO-MoS of-Ag2-the appearance of Ag composite films;
FIG. 2 is rGO-MoS2The influence of the addition amount of Ag on the light transmittance of the composite film;
FIG. 3 is rGO-MoS2The effect of the addition of Ag on the tensile strength (a) and tensile hardness (b) of the composite film;
FIG. 4 shows the addition of rGO-MoS in different proportions2CMC/rGO-MoS of-Ag2The Ag composite membrane has bacteriostatic activity on Escherichia coli (Escherichia coli) and Staphylococcus aureus (Staphylococcus aureus).
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film prepared from reductive graphene oxide-molybdenum disulfide-silver (rGO-MoS)2-Ag) ternary antibacterial compound is used as a nano filler, glycerin is used as a plasticizer, and the glycerin is added into carboxymethyl cellulose (CMC) by adopting a solution casting method to prepare the carboxymethyl cellulose/reductive graphene oxide-molybdenum disulfide-silver antibacterial film with stronger tensile capability and antibacterial property.
A preparation method of a carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film comprises the following steps:
(1)CMC/rGO-MoS2preparation of-Ag composite films
Preparation of CMC/rGO-MoS Using tape casting2-an Ag composite film. First, 4g of CMC was slowly dissolved in 150mL of ultrapure water with vigorous stirring, and 1.2g of glycerol as a plasticizer (30 wt% CMC) was added dropwise thereto, and heated for 30min while maintaining 90 ℃ until the CMC was completely dissolved. Then, rGO-MoS with different concentrations2Dissolving an Ag nano composite material (1 wt%, 2 wt%, 4 wt%, 8 wt% and 10 wt%, the percentages of which represent the mass ratio of the nano composite material to the CMC) in 50mL of ultrapure water, homogenizing for 5-10min by using a high-speed shearing homogenizer, adding the obtained solution into the CMC solution while stirring, uniformly mixing, gradually heating under the action of a magnetic stirrer, uniformly casting the obtained solution on a glass flat plate after the solution is boiled, and drying the obtained solution for 48 hours at the room temperature of 25 ℃ in a fume hood. The fully dried nanocomposite film was carefully peeled off along the edges of the glass sheet and stored in a desiccator for use. The prepared nano composite membranes with different concentrations are marked as CMC/rGO-MoS2-Ag1、CMC/rGO-MoS2-Ag2、CMC/rGO-MoS2-Ag4、CMC/rGO-MoS2-Ag8、CMC/rGO-MoS2Ag10, pure films of CMC were also prepared by the same method, without addition of nanomaterials, for ease of comparison.
(2) Characterization of CMC/rGO-MoS2-Ag composite film
Appearance observation of CMC/rGO-MoS2-Ag composite membrane
Nano composite membranes CMC/rGO-MoS of different nanomaterial contents prepared using single lens reflex camera pair2-Ag1、CMC/rGO-MoS2-Ag2、CMC/rGO-MoS2-Ag4、CMC/rGO-MoS2-Ag8、CMC/rGO-MoS2Appearance and appearance analysis of Ag10, the results are shown in figure 1.
As can be seen from FIG. 1, the CMC/rGO-MoS prepared2the-Ag composite film is black in appearance, smooth and flat in surface, and the rGO-MoS can be observed by naked eyes2Ag is uniformly dispersed in CMC, and the color of the composite film gradually becomes darker as the content of the nano filler increases.
②CMC/rGO-MoS2Analysis of light transmittance of-Ag composite film
The ultraviolet visible light spectrophotometer is used for CMC/rGO-MoS with different contents of nano-fillers in the range of 200-800nm in wavelength2The transmittance of the-Ag composite film was measured, and the results are shown in FIG. 2.
As can be seen from fig. 2, the carboxymethyl cellulose (CMC) film of the simple component exhibits high light transmittance. However, with rGO-MoS2The light transmission of the composite film is reduced by the doping of the-Ag ternary nano composite material; wherein, the light transmittance is obviously reduced by the experimental group added with the nano filler with the content of 10 wt%. The main reason for the decrease in light transmittance is the rGO-MoS dispersed in the carboxymethyl cellulose matrix2The Ag nanoparticles block light transmission through the film.
③CMC/rGO-MoS2Mechanical Property analysis of-Ag composite film
At room temperature, using a universal tester to test CMC/rGO-MoS2The mechanical properties of the-Ag composite films were measured, and the results are shown in FIG. 3.
As shown in fig. 3(a), the tensile strength of the composite films containing the nanofillers at different concentration levels was significantly enhanced compared to the control component (the tensile strength of the pure CMC film was 37.18MPa), which was 40.72MPa, 44.61MPa, 50.37MPa, 55.89MPa, and 61.56MPa, respectively, in the order of 1 wt%, 2 wt%, 4 wt%, 8 wt%, and 10 wt%. Compared with the tensile strength measured by the experimental group, the maximum improvement reaches 65.57 percent. Young's Modulus (YM) means the ratio of tensile stress to tensile strain in the elastic range, which to some extent reflects the texture and hardness of the film. As shown in FIG. 3(b), the Young's modulus of the CMC film of the individual components was 1.88GPa, and the Young's moduli at different nanofiller concentrations were 2.05GPa, 2.24GPa, 2.53GPa, 2.81GPa, and 3.10GPa, respectively. The maximum young's modulus increased 64.89%. Illustrates the CMC/rGO-MoS prepared2The Ag composite film has remarkably enhanced mechanical properties.
(3) Antibacterial activity analysis of CMC/rGO-MoS2-Ag composite membrane
Sterilizing a film sample cut into regular small pieces, and co-culturing with Escherichia coli and Staphylococcus aureus in LB medium (37 deg.C culture 12)h) In that respect After bacterial liquids of 0, 3, 6, 9 and 12 hours are taken for plate coating culture during culture, the prepared nano composite membrane CMC/rGO-MoS with different nano material contents is evaluated by a plate colony counting method2-Ag1、CMC/rGO-MoS2-Ag2、CMC/rGO-MoS2-Ag4、CMC/rGO-MoS2-Ag8、CMC/rGO-MoS2The antibacterial activity of Ag10 and CMC membrane alone against the food-borne pathogenic bacteria escherichia coli and staphylococcus aureus, the results are shown in fig. 4.
The CMC membrane of the individual component showed no antibacterial activity against both bacteria compared to the blank control without any membrane material added; however, with the addition of rGO-MoS2The concentration of the-Ag ternary composite material is increased, the antibacterial performance of the composite film of the-Ag ternary composite material to two bacteria is gradually enhanced, and compared with staphylococcus aureus, the prepared CMC/rGO-MoS2the-Ag composite membrane shows better antibacterial activity to Escherichia coli.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The antibacterial film is characterized in that the antibacterial film is prepared from reductive graphene oxide-molybdenum disulfide-silver (rGO-MoS)2-Ag) ternary antibacterial compound is used as a nano filler, glycerin is used as a plasticizer, and the glycerin is added into carboxymethyl cellulose (CMC) by adopting a solution casting method to prepare the carboxymethyl cellulose/reductive graphene oxide-molybdenum disulfide-silver antibacterial film with stronger tensile capability and antibacterial property.
2. The preparation method of the carboxymethyl cellulose and reduced graphene oxide-molybdenum disulfide-silver antibacterial film according to claim 1, characterized by comprising the following steps:
(1) slowly dissolving carboxymethyl cellulose in ultrapure water under vigorous stirring, dropwise adding glycerol as a plasticizer, heating to 75-105 deg.C and maintaining for 20-40min to ensure complete dissolution of carboxymethyl cellulose;
(2) dissolving the reductive graphene oxide-molybdenum disulfide-silver nano composite material in ultrapure water, homogenizing by using a high-speed shearing homogenizer, and then adding the material into a carboxymethyl cellulose solution while stirring for uniformly mixing;
(3) heating the mixed solution gradually under the action of a magnetic stirrer, uniformly casting the mixed solution on a glass flat plate after the solution is boiled, and placing the glass flat plate in a fume hood for drying.
3. The preparation method of the carboxymethyl cellulose and reduced graphene oxide-molybdenum disulfide-silver antibacterial film according to claim 2, wherein in the step (1), the mass ratio of the carboxymethyl cellulose to the glycerol is (3-5): 1, homogenizing for 5-10 min.
4. The preparation method and the application of the carboxymethyl cellulose and reductive graphene oxide-molybdenum disulfide-silver antibacterial film as claimed in claim 2, wherein in the step (2), the percentage of the reductive graphene oxide-molybdenum disulfide-silver nano composite material is 1% -20%.
5. The preparation and application of the carboxymethyl cellulose and reduced graphene oxide-molybdenum disulfide-silver antibacterial film as claimed in claim 2, wherein in the step (3), the drying temperature of the antibacterial film is 15-35 ℃.
6. The use of carboxymethyl cellulose and a reduced graphene oxide-molybdenum disulfide-silver antibacterial film according to any one of claims 1 to 5 in an antibacterial package.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286378A (en) * | 2017-07-10 | 2017-10-24 | 林毅平 | High intensity carboxymethyl cellulose food package film and preparation method thereof |
| CN110583691A (en) * | 2019-09-19 | 2019-12-20 | 南京工业大学 | Reductive graphene oxide-molybdenum disulfide-silver ternary composite antibacterial material and preparation method and application thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286378A (en) * | 2017-07-10 | 2017-10-24 | 林毅平 | High intensity carboxymethyl cellulose food package film and preparation method thereof |
| CN110583691A (en) * | 2019-09-19 | 2019-12-20 | 南京工业大学 | Reductive graphene oxide-molybdenum disulfide-silver ternary composite antibacterial material and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| YADOLLAH EBRAHIMI等: "Development of Antibacterial Carboxymethyl Cellulose-Based Nanobiocomposite Films Containing Various Metallic Nanoparticles for Food Packaging Applications", 《JOURNAL OF FOOD SCIENCE》 * |
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