CN117106336B - Antibacterial, antioxidant and flame-retardant water-based plastic-replacing oil, preparation method and application thereof - Google Patents
Antibacterial, antioxidant and flame-retardant water-based plastic-replacing oil, preparation method and application thereofInfo
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- CN117106336B CN117106336B CN202311067775.6A CN202311067775A CN117106336B CN 117106336 B CN117106336 B CN 117106336B CN 202311067775 A CN202311067775 A CN 202311067775A CN 117106336 B CN117106336 B CN 117106336B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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Abstract
本申请提供的一种抗菌抗氧化阻燃水性替塑油及其制备方法和应用，由以下组分构成：45～90％水性聚氨酯乳液、5～20％水性丙烯酸乳液、1～10％抗菌抗氧化阻燃预聚物、0.2～2％分散剂、0.5～2％消泡剂以及余量的水，采用特定的抗菌抗氧化阻燃功能预聚物(GO@TP@CS)，通过采用茶多酚对氧化石墨烯进行包埋处理，同时进一步共价连接壳聚糖，以提升石墨烯的分散性，解决石墨烯基体与水性替塑油相容性差的技术问题，不仅有效防止了石墨烯的团聚，而且极大地提高了水性替塑油的抗菌抗氧化阻燃性能。The present application provides an antibacterial, antioxidant, and flame-retardant aqueous plastic replacement oil, as well as a preparation method and application thereof, which are composed of the following components: 45-90% aqueous polyurethane emulsion, 5-20% aqueous acrylic emulsion, 1-10% antibacterial, antioxidant, and flame-retardant prepolymer, 0.2-2% dispersant, 0.5-2% defoamer, and the remainder water. A specific antibacterial, antioxidant, and flame-retardant functional prepolymer (GO@TP@CS) is used, and graphene oxide is embedded in tea polyphenols. Chitosan is further covalently linked to improve the dispersibility of graphene, thereby solving the technical problem of poor compatibility between the graphene matrix and the aqueous plastic replacement oil. This not only effectively prevents the agglomeration of graphene, but also greatly improves the antibacterial, antioxidant, and flame-retardant properties of the aqueous plastic replacement oil.
Description
Technical Field
The invention relates to the technical field of environment-friendly ink, in particular to an antibacterial, antioxidant and flame-retardant water-based plastic substituting oil, and a preparation method and application thereof.
Background
The existing laminating process is to print ink on a paper substrate, and then to coat BOPP film and PE film (the film has been made with matte or touch effect) by glue.
For the ink industry, the UV gloss oil and the ink make the VOC emission almost zero, and the environment and the physical health of workers are protected to the greatest extent. Although UV varnish and ink is a green environmental-friendly ink, after the UV varnish and ink are applied to various packaging products, the printed ink layer is not easy to recycle, and meanwhile, habitats are provided for bacteria and microorganisms to reproduce, which poses a potential threat to human health. The method has the advantages that the health and safety are deeply known, certain antibacterial property is expected to be realized by the printing ink and the UV gloss oil, a safety line is provided for the production and living of people, and the antibacterial and antioxidant water-based plastic replacing oil can be generated due to the fact that the oxidation of foods (oxidation of lipid, protein, pigment, vitamin and other nutrient substances) is one of main reasons for deteriorating the quality of foods in the storage process, the oxidation resistance of the coating material and the water-based plastic replacing oil on the surface can prevent the oxidation of the foods, so that the storage period of the products is prolonged, and the environment-friendly requirement is combined.
The antibacterial, antioxidant and flame-retardant water-based plastic oil has wide application prospect, and a great number of scientific research institutions and enterprise institutions at home and abroad develop a great deal of researches, but the current research at home and abroad is mainly focused on the development of single antibacterial and flame-retardant, and no report of the multifunctional water-based plastic oil with antibacterial, antioxidant and flame-retardant functions is found.
In the existing plastic replacing process, the plastic replacing oil material has poor physical properties such as folding resistance, bursting resistance and the like compared with a high polymer such as a glue film, while graphene is one of the materials with the highest known strength, is a sp 2 hybridized carbon nano structure, has a two-dimensional honeycomb plane with one carbon atom thickness, and has the advantages of high strength, compact structure, strong physical shielding property, stable chemical property, larger specific surface area and the like. The graphene lamellar structure has strong van der Waals force, pi-pi double bonds and high specific surface area, so that the graphene lamellar structure has strong hydrophobicity and low dispersibility, and practical application of the graphene lamellar structure is limited. Therefore, the problems of dispersion, interface and the like of graphene in the water-based plastic replacing oil must be solved, and the water-based plastic replacing oil with antibacterial, antioxidant and flame retardant performances is developed, so that the water-based plastic replacing oil has remarkable practical significance.
Disclosure of Invention
Aiming at the problems that the physical properties of plastic oil material such as folding resistance, bursting resistance and the like are relatively poor compared with high molecular polymers such as adhesive films in the existing plastic replacing process, the antibacterial, antioxidant and flame retardant performance is poor, and the graphene and water-based plastic oil phase are poor, the invention provides a preparation method and application of the antibacterial, antioxidant and flame retardant water-based plastic oil.
The second purpose of the invention is to provide a preparation method of the antibacterial, antioxidant and flame-retardant water-based plastic substituting oil, which is easy to operate.
In order to achieve the first object, the present invention adopts the following technical scheme:
The antibacterial, antioxidant and flame-retardant water-based plastic substituting oil comprises, by weight, 45-90% of water-based polyurethane emulsion, 5-20% of water-based acrylic emulsion, 1-10% of antibacterial, antioxidant and flame-retardant prepolymer, 0.2-2% of dispersing agent, 0.5-2% of defoaming agent and the balance of water;
The antibacterial, antioxidant and flame-retardant prepolymer is the graphene oxide GO@TP@CS synergistically modified by the tea polyphenol and the chitosan, and the introduced tea polyphenol and chitosan can improve the antibacterial, antioxidant and compatibility, effectively improve the dispersibility of the graphene in the aqueous plastic substituting oil, and endow the aqueous plastic substituting oil with the antibacterial, antioxidant and flame-retardant properties;
the raw materials for preparing and extracting the Tea Polyphenol (TP) and the Chitosan (CS) are wide in sources and rich in reserves in nature, and the materials prepared by compounding the functional groups on the surfaces of the Tea Polyphenol (TP) and the Chitosan (CS) with other substances can effectively remove heavy metals, dyes and other organic pollutants. And the tea polyphenol has antibacterial and antioxidant properties, and the chitosan has antibacterial effect, and the two have synergistic effect, so that the antibacterial and antioxidant properties of the material are greatly improved, the spread of diseases is reduced, the oxidation is prevented, and the shelf life of the product is prolonged.
Preferably, the preparation method of the antibacterial antioxidant flame-retardant prepolymer comprises the following steps:
S1, adding graphene oxide dispersion liquid into tea polyphenol deionized water solution, performing ultrasonic treatment for 1-5 hours at the power of 100-325W, filtering, washing and drying to obtain tea polyphenol modified graphene oxide;
S2, adding chitosan acetic acid solution into the tea polyphenol modified graphene oxide obtained in the step S1, performing ultrasonic treatment for 1-5 hours at the power of 100-325W, filtering, washing and drying to obtain the antibacterial, antioxidant and flame-retardant prepolymer.
Preferably, in the step S1, the volume ratio of the graphene oxide to the tea polyphenol is 1:1-1:5, and in the step S2, the volume ratio of the tea polyphenol modified graphene oxide to the chitosan acetic acid solution is 1:1-1:5.
Preferably, in the step S1, the concentration of the graphene oxide is 1-5 mg/mL, and the concentration of the tea polyphenol is 5-15 mg/mL.
Preferably, in step S2, the mass percentage of acetic acid in the chitosan acetic acid solution is 1-5%.
Preferably, in the tea polyphenol and chitosan synergistic modified graphene oxide, the concentration of the tea polyphenol modified graphene oxide is 1-5 mg/mL.
Preferably, in the step S1, the vacuum drying condition is that the temperature is 25-100 ℃ and the drying is 4-20 hours, and in the step S2, the vacuum drying condition is that the temperature is 25-100 ℃ and the drying is 4-20 hours.
Preferably, the dispersing agent is any one or more than two of sodium lignin sulfonate, sodium alkyl benzene sulfonate, alkylphenol ethoxylates and fatty alcohol polyoxyethylene ether ammonium sulfate, and the defoaming agent is an organosilicon defoaming agent.
In order to achieve the second object, the present invention adopts the following technical scheme:
The preparation method of the antibacterial, antioxidant and flame-retardant water-based plastic substituting oil comprises the following steps of mixing water-based polyurethane emulsion, water-based acrylic emulsion and antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS, and uniformly dispersing at a rotating speed of 1200-160 rpm to obtain a semi-finished product;
And respectively adding a dispersing agent, a defoaming agent and deionized water into the semi-finished product, stirring at a rotation speed of 800-1000 rpm until the dispersing agent is uniformly dispersed, and thus obtaining the antibacterial antioxidant flame-retardant aqueous plastic oil.
The antibacterial, antioxidant and flame-retardant water-based plastic oil prepared by the preparation method is applied to paper packaging and book packaging products.
Compared with the prior art, the invention has the following advantages:
1. According to the antibacterial, antioxidant and flame-retardant water-based plastic replacing oil provided by the application, the specific antibacterial, antioxidant and flame-retardant prepolymer (GO@TP@CS) is adopted, and the graphene oxide is subjected to embedding treatment by adopting the tea polyphenol, and meanwhile, chitosan is further covalently connected, so that the dispersibility of the graphene is improved, the technical problem that the graphene matrix and the water-based plastic replacing oil are poor in compatibility is solved, the aggregation of the graphene is effectively prevented, and the antibacterial, antioxidant and flame-retardant performance of the water-based plastic replacing oil is greatly improved.
2. The preparation method of the antibacterial, antioxidant and flame-retardant water-based plastic oil provided by the application is simple to operate, the prepared water-based plastic oil has antibacterial, antioxidant and flame-retardant functions, and simultaneously enhances folding resistance and wear resistance, the problems of poor compatibility, difficult dispersion and the like of graphene added into a water-based plastic oil matrix are solved, and the prepared antibacterial, antioxidant and flame-retardant water-based plastic oil has the advantages of small addition amount and good antibacterial, antioxidant and flame-retardant effects, and the antibacterial, antioxidant and flame-retardant properties of the water-based plastic oil are greatly improved.
3. The antibacterial, antioxidant and flame-retardant water-based plastic substituting oil provided by the application can be applied to paper packaging and book packaging products, is environment-friendly and odorless, and has antibacterial, antioxidant and flame-retardant properties.
Detailed Description
The following describes the specific technical scheme of the present invention with reference to specific embodiments:
example 1:
(1) Preparation of GO@TP@CS:
0.05g of GO was added to 50mL of ethanol and dispersed in an ultrasonic cleaner for 1 hour at an ultrasonic temperature of 15℃and a power of 135W to give a uniform GO ethanol dispersion having a concentration of 1 mg/mL.
(2) Adding 10mL of TP deionized water solution (GO: TP=1:2, w/w) with the concentration of 10mg/mL into the dispersion liquid, carrying out ultrasonic treatment for 2h in an ultrasonic cleaner, filtering and washing the mixed liquid to obtain brown solid, dispersing the obtained solid in 50mL of deionized water again by ultrasonic treatment, and carrying out vacuum drying at 60 ℃ to obtain the tea polyphenol modified graphene oxide TP-GO.
(3) And adding a proper amount of chitosan into a 3wt% acetic acid solution, adding a chitosan acetic acid solution (CS) into the GO@TP dispersion liquid, performing ultrasonic treatment for 2 hours at a ratio of 1:1 and a power of 125W, filtering, washing and drying to obtain the GO@TP@CS.
(4) Preparation of aqueous plastic replacing oil:
mixing the aqueous polyurethane emulsion, the aqueous acrylic emulsion, the antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS according to the proportion of the table 1, uniformly dispersing at the rotation speed of 1200rpm to obtain a semi-finished product, respectively adding the dispersing agent, the defoaming agent and the deionized water into the semi-finished product, and stirring at the rotation speed of 800rpm until the dispersing agent, the defoaming agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
Example 2:
(1) Preparation of GO@TP@CS:
0.05g of GO was added to 50mL of ethanol and dispersed in an ultrasonic cleaner for 1 hour at an ultrasonic temperature of 15℃and a power of 135W to give a uniform GO ethanol dispersion having a concentration of 1 mg/mL.
(2) Adding 10mL of TP deionized water solution (GO: TP=1:3, w/w) with the concentration of 10mg/mL into the dispersion liquid, carrying out ultrasonic treatment for 2h in an ultrasonic cleaner, filtering and washing the mixed liquid to obtain brown solid, dispersing the obtained solid in 50mL of deionized water again by ultrasonic treatment, and carrying out vacuum drying at 60 ℃ to obtain the tea polyphenol modified graphene oxide TP-GO.
(3) And adding a proper amount of chitosan into a 3wt% acetic acid solution, adding a chitosan acetic acid solution (CS) into the GO@TP dispersion liquid, performing ultrasonic treatment for 1h with the power of 100W according to the proportion of 1:1, filtering, washing and drying to obtain the GO@TP@CS.
(4) Preparation of aqueous plastic replacing oil:
mixing the aqueous polyurethane emulsion, the aqueous acrylic emulsion and the antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS according to the proportion of the table 1, uniformly dispersing at a rotating speed of 1400rpm to obtain a semi-finished product, respectively adding a dispersing agent, a defoaming agent and deionized water into the semi-finished product, and stirring at a rotating speed of 1000rpm until the dispersing agent, the defoaming agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
Example 3:
(1) Preparation of GO@TP@CS:
0.05g of GO was added to 50mL of ethanol and dispersed in an ultrasonic cleaner for 1 hour at an ultrasonic temperature of 15℃and a power of 135W to give a uniform GO ethanol dispersion having a concentration of 1 mg/mL.
(2) Adding 10mL of TP deionized water solution (GO: TP=1:5, w/w) with the concentration of 10mg/mL into the dispersion liquid, carrying out ultrasonic treatment for 2h in an ultrasonic cleaner, filtering and washing the mixed liquid to obtain brown solid, dispersing the obtained solid in 50mL of deionized water again by ultrasonic treatment, and carrying out vacuum drying at 60 ℃ to obtain the tea polyphenol modified graphene oxide TP-GO.
(3) And adding a proper amount of chitosan into a 3wt% acetic acid solution, adding a chitosan acetic acid solution (CS) into the GO@TP dispersion liquid, performing ultrasonic treatment for 3 hours at a ratio of 1:1 and a power of 130W, filtering, washing and drying to obtain the GO@TP@CS.
(4) Preparation of aqueous plastic replacing oil:
Mixing the aqueous polyurethane emulsion, the aqueous acrylic emulsion, the antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS according to the proportion of the table 1, uniformly dispersing at a rotating speed of 1500rpm to obtain a semi-finished product, respectively adding the dispersing agent, the defoaming agent and deionized water into the semi-finished product, and stirring at a rotating speed of 900rpm until the dispersing agent, the defoaming agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
Example 4:
(1) Preparation of GO@TP@CS:
0.05g of GO was added to 50mL of ethanol and dispersed in an ultrasonic cleaner for 1 hour at an ultrasonic temperature of 15℃and a power of 135W to give a uniform GO ethanol dispersion having a concentration of 1 mg/mL.
(2) Adding 10mL of TP deionized water solution (GO: TP=1:4, w/w) with the concentration of 10mg/mL into the dispersion liquid, carrying out ultrasonic treatment for 2h in an ultrasonic cleaner, filtering and washing the mixed liquid to obtain brown solid, dispersing the obtained solid in 50mL of deionized water again by ultrasonic treatment, and carrying out vacuum drying at 60 ℃ to obtain the tea polyphenol modified graphene oxide TP-GO.
(3) And adding a proper amount of chitosan into a 3wt% acetic acid solution, adding a chitosan acetic acid solution (CS) into the GO@TP dispersion liquid, performing ultrasonic treatment for 5 hours at a ratio of 1:1 and a power of 300W, filtering, washing and drying to obtain the GO@TP@CS.
(4) Preparation of aqueous plastic replacing oil:
Mixing the aqueous polyurethane emulsion, the aqueous acrylic emulsion and the antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS according to the proportion of the table 1, uniformly dispersing at the rotating speed of 1200-160 rpm to obtain a semi-finished product, respectively adding the dispersing agent, the defoaming agent and the deionized water into the semi-finished product, and stirring at the rotating speed of 800-1000 rpm until the dispersing agent, the defoaming agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
Example 5:
(1) Preparation of GO@TP@CS:
0.05g of GO was added to 50mL of ethanol and dispersed in an ultrasonic cleaner for 1 hour at an ultrasonic temperature of 15℃and a power of 135W to give a uniform GO ethanol dispersion having a concentration of 1 mg/mL.
(2) Adding 10mL of TP deionized water solution (GO: TP=1:2, w/w) with the concentration of 10mg/mL into the dispersion liquid, carrying out ultrasonic treatment for 2h in an ultrasonic cleaner, filtering and washing the mixed liquid to obtain brown solid, dispersing the obtained solid in 50mL of deionized water again by ultrasonic treatment, and carrying out vacuum drying at 60 ℃ to obtain the tea polyphenol modified graphene oxide TP-GO.
(3) And adding a proper amount of chitosan into a 3wt% acetic acid solution, adding a chitosan acetic acid solution (CS) into the GO@TP dispersion liquid, performing ultrasonic treatment for 5 hours at a ratio of 1:1 and a power of 325W, filtering, washing and drying to obtain the GO@TP@CS.
(4) Preparation of aqueous plastic replacing oil:
mixing the aqueous polyurethane emulsion, the aqueous acrylic emulsion, the antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS according to the proportion of the table 1, uniformly dispersing at the rotating speed of 1600rpm to obtain a semi-finished product, respectively adding the dispersing agent, the defoaming agent and the deionized water into the semi-finished product, and stirring at the rotating speed of 1000rpm until the dispersing agent, the defoaming agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
Example 6:
(1) Preparation of GO@TP@CS:
0.05g of GO was added to 50mL of ethanol and dispersed in an ultrasonic cleaner for 1 hour at an ultrasonic temperature of 15℃and a power of 135W to give a uniform GO ethanol dispersion having a concentration of 1 mg/mL.
(2) Adding 10mL of TP deionized water solution (GO: TP=1:2, w/w) with the concentration of 10mg/mL into the dispersion liquid, carrying out ultrasonic treatment for 2h in an ultrasonic cleaner, filtering and washing the mixed liquid to obtain brown solid, dispersing the obtained solid in 50mL of deionized water again by ultrasonic treatment, and carrying out vacuum drying at 60 ℃ to obtain the tea polyphenol modified graphene oxide TP-GO.
(3) And adding a proper amount of chitosan into a 3wt% acetic acid solution, adding a chitosan acetic acid solution (CS) into the GO@TP dispersion liquid, performing ultrasonic treatment for 3 hours at a ratio of 1:1 and a power of 320W, filtering, washing and drying to obtain the GO@TP@CS.
(4) Preparation of aqueous plastic replacing oil:
Mixing the aqueous polyurethane emulsion, the aqueous acrylic emulsion and the antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS according to the proportion of the table 1, uniformly dispersing at the rotating speed of 1200-160 rpm to obtain a semi-finished product, respectively adding the dispersing agent, the defoaming agent and the deionized water into the semi-finished product, and stirring at the rotating speed of 800-1000 rpm until the dispersing agent, the defoaming agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
Comparative example:
Preparation of aqueous plastic replacing oil:
Mixing the aqueous polyurethane emulsion and the aqueous acrylic emulsion according to the proportion of the table 1, dispersing uniformly at the rotation speed of 1200rpm to obtain a semi-finished product, respectively adding the dispersing agent, the defoaming agent and the deionized water into the semi-finished product, and stirring at the rotation speed of 800rpm until the dispersing agent and the aqueous acrylic emulsion are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil.
TABLE 1 percentage of the components of the antibacterial antioxidant flame retardant aqueous plastic oil of examples 1-6 and comparative example (%)
| Component (A) | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example |
| Aqueous polyurethane emulsion | 75 | 90 | 45 | 75 | 75 | 75 | 75 |
| Aqueous acrylic emulsion | 12 | 7.8 | 20 | 12 | 12 | 12 | 12 |
| GO@TP@CS | 1 | 1 | 1 | 3 | 5 | 5 | - |
| Sodium lignin sulfonate | 0.5 | 0.2 | 1.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Organosilicon defoamer | 0.75 | 1 | 0.5 | 0.75 | 0.75 | 0.75 | 0.75 |
| Water and its preparation method | 10.75 | 0 | 32 | 8.75 | 6.75 | 6.75 | 11.75 |
The aqueous tie oil prepared in examples 1-6 and comparative example above was adhered (after the aqueous tie oil was cured on the gray cardboard, the 3m 600 tape was repeatedly applied to the gray cardboard and peeled off at 90 ° angle, the number of peelings when peeling off the film layer was recorded), abrasion resistance (measured with a 4 pound abrasion tester, the number of rubs when scratches were recorded), rub resistance (the aqueous tie oil was applied to a 10 μm wire rod, then a folding test was performed, and the number of folds when bursting occurred) was recorded. The results are shown in Table 2 below.
TABLE 2 test results
As can be seen from the results in Table 2, with the addition of the specific antibacterial antioxidant flame-retardant prepolymer GO@TP@CS, compared with the comparative example, the invention can remarkably improve the adhesiveness, the friction resistance and the rubbing resistance, and the graphene is one of the materials with the highest known strength, has good toughness, can be bent, has the theoretical Young modulus of 1.0TPa and has the inherent tensile strength of 130GPa.
Antibacterial, antioxidant and flame-retardant aqueous plastic-substituted oils of examples 1, 4-6 and comparative examples and comparative example 1 (aqueous plastic-substituted oil) were coated on paper substrates to test antibacterial and flame-retardant properties. The test items and test results are shown in table 3 below.
TABLE 3 antibacterial flame retardant Property test results
As shown by test results of an experiment table, according to the application, the antibacterial rates of the aqueous plastic substituting oil added with GO@TP@CS in the embodiment 1 and the embodiment 4-the embodiment 6 are above 80%, wherein when the content of GO@TP@CS is above 5wt%, the antibacterial rate is above 99.99%, and the antibacterial rate of the comparative example 1 without GO@TP@CS is only 23.75%, which indicates that the addition of GO@TP@CS greatly improves the antibacterial performance of the aqueous plastic substituting oil.
According to the application, the GO@TP@CS aqueous plastic oil is added in the embodiment 1 and the embodiment 4 to the embodiment 6, after the test sample is subjected to two 10-second combustion test tests, the flame is extinguished within 15 seconds, and the flame of the comparative example 1, which is not added with the GO@TP@CS, is extinguished within 53 seconds, so that the flame retardant effect is general, and the formula coated with the GO@TP@CS aqueous plastic oil has a good flame retardant effect and achieves the expected effect.
And after GO@TP@CS is added, the physical properties (such as adhesiveness, friction resistance, flexibility resistance and the like) of the water-based plastic replacing oil can reach application standards, and meanwhile, the water-based plastic replacing oil has excellent flexibility, adhesive force and good friction resistance and the like. The application utilizes the excellent flame retardant and antibacterial properties of GO@TP@CS to improve the antibacterial, antioxidant and flame retardant effects of the water-based plastic replacing oil, and the prepared water-based plastic replacing oil has good antibacterial, antioxidant and flame retardant effects, and solves the technical problems of low antibacterial efficiency and incapability of flame retardance in the conventional water-based plastic replacing oil of the same type in China.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (2)
1. The antibacterial, antioxidant and flame-retardant water-based plastic substituting oil is characterized by comprising, by weight, 45-90% of water-based polyurethane emulsion, 5-20% of water-based acrylic emulsion, 1-10% of antibacterial, antioxidant and flame-retardant prepolymer, 0.2-2% of dispersing agent, 0.5-2% of defoaming agent and the balance of water;
The antibacterial, antioxidant and flame-retardant prepolymer is tea polyphenol and chitosan synergistically modified graphene oxide GO@TP@CS;
the preparation method of the antibacterial antioxidant flame-retardant prepolymer comprises the following steps:
S1, adding graphene oxide dispersion liquid into tea polyphenol deionized water solution, performing ultrasonic treatment for 1-5 hours at the power of 100-325W, filtering, washing and drying to obtain tea polyphenol modified graphene oxide;
s2, adding chitosan acetic acid solution into the tea polyphenol modified graphene oxide obtained in the step S1, performing ultrasonic treatment for 1-5 hours at the power of 100-325W, filtering, washing and drying to obtain an antibacterial antioxidant flame-retardant prepolymer;
In the step S1, the volume ratio of the graphene oxide to the tea polyphenol is 1:2-1:5;
In the step S2, the volume ratio of the tea polyphenol modified graphene oxide to the chitosan acetic acid solution is 1:1-1:5;
In the step S1, the concentration of the graphene oxide is 1-5 mg/mL, and the concentration of the tea polyphenol is 5-15 mg/mL;
In the step S2, the mass percentage of acetic acid in the chitosan acetic acid solution is 1-5%;
in the tea polyphenol and chitosan synergistic modified graphene oxide, the concentration of the tea polyphenol modified graphene oxide is 1-5 mg/mL;
In the step S1, the vacuum drying condition is that the temperature is 25-100 ℃ and the drying is 4-20 hours, and in the step S2, the vacuum drying condition is that the temperature is 25-100 ℃ and the drying is 4-20 hours;
The dispersing agent is any one or more than two of sodium lignin sulfonate, sodium alkyl benzene sulfonate, alkylphenol ethoxylates and fatty alcohol polyoxyethylene ether ammonium sulfate, and the defoaming agent is an organosilicon defoaming agent;
The preparation method of the antibacterial, antioxidant and flame-retardant water-based plastic substituting oil comprises the following steps of mixing water-based polyurethane emulsion, water-based acrylic emulsion and antibacterial, antioxidant and flame-retardant prepolymer GO@TP@CS, and uniformly dispersing at a rotating speed of 1200-160 rpm to obtain a semi-finished product;
And respectively adding a dispersing agent, a defoaming agent and deionized water into the semi-finished product, and stirring at a rotating speed of 800-1000 rpm until the dispersing agent and the deionized water are uniformly dispersed to obtain the antibacterial, antioxidant and flame-retardant water-based plastic substituting oil.
2. The antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil according to claim 1, which is characterized in that the antibacterial, antioxidant and flame-retardant aqueous plastic substituting oil prepared by the preparation method is applied to paper packaging and book packaging products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311067775.6A CN117106336B (en) | 2023-08-23 | 2023-08-23 | Antibacterial, antioxidant and flame-retardant water-based plastic-replacing oil, preparation method and application thereof |
Applications Claiming Priority (1)
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| CN105218871A (en) * | 2015-08-26 | 2016-01-06 | 苏州卓伟企业管理咨询有限公司 | A kind of preparation method of reduced graphene/Chitosan Composites |
| CN107641171A (en) * | 2017-10-09 | 2018-01-30 | 浙江卫星新材料科技有限公司 | A kind of high oil absorption based on graphene and high antibiotic property oil-absorbing resin and its application |
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| CN107951902B (en) * | 2017-10-18 | 2022-08-12 | 厦门源创力科技服务有限公司 | A kind of graphene antibacterial composition and hygienic material using the composition |
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| CN105218871A (en) * | 2015-08-26 | 2016-01-06 | 苏州卓伟企业管理咨询有限公司 | A kind of preparation method of reduced graphene/Chitosan Composites |
| CN107641171A (en) * | 2017-10-09 | 2018-01-30 | 浙江卫星新材料科技有限公司 | A kind of high oil absorption based on graphene and high antibiotic property oil-absorbing resin and its application |
| CN113278352A (en) * | 2021-06-01 | 2021-08-20 | 惠州德斯坤化工有限公司 | Water-based plastic replacement oil and preparation method thereof |
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