A preparation method of antiviral beauty glue

Abstract

The invention provides a preparation method of an antiviral cosmetic glue, and relates to the technical field of adhesives. The invention includes the steps of synthesizing Ag-ZnO composite nanoparticles, amino-modifying silica, preparing Ag-ZnO composite-modified silica, and preparing an antiviral beauty glue. The Ag-ZnO composite nanoparticles are synthesized by using an AgNO3 solution, a sodium citrate solution, and ZnO nanoparticles. The silica is amino-modified by modifying silica with 3-aminopropyltriethoxysilane to obtain amino-modified silica. The Ag-ZnO composite-modified silica is prepared by reacting Ag-ZnO composite nanoparticles with amino-modified silica. The antiviral beauty glue is prepared by using raw materials including α,ω-dihydroxypolydimethylsiloxane, dimethyl silicone oil, quaternary ammonium salt-modified siloxane, Ag-ZnO composite-modified silica, zirconium phosphate nanosheets, a catalyst, and a cross-linking agent. The catalyst is dibutyltin dilaurate. The beauty glue of the invention has excellent antiviral properties.

Description

Technical Field

[0001] The present invention relates to the technical field of adhesives, and in particular to a method for preparing an antiviral cosmetic adhesive. Background Art

[0002] In recent years, public health issues caused by viral infections have become increasingly severe. Epidemic diseases such as seasonal influenza and hand, foot and mouth disease pose significant risks in crowded settings such as schools, hospitals, and homes, adversely impacting public health, daily life, and economic operations. Against this backdrop, antiviral materials have become a key research area for infection prevention and control. This is particularly true for "cosmetic sealants," such as interior decorative sealants, which come into direct contact with the human body and the environment, raising concerns about their safety and effectiveness.

[0003] In recent years, influenza A (H3N2) has become more prevalent in winter. Influenza A (H3N2), a subtype of influenza A, causes symptoms similar to those of other influenza A viruses, including fever (typically persistent with viral infection, but often higher in the afternoon), cough, sore throat, body aches, headache, chills, and fatigue. Some may also experience diarrhea and vomiting. Severe cases can develop pneumonia, respiratory failure, and even death. Currently, there is limited research on cosmetic gels that protect against influenza A (H3N2).

[0004] The current research direction of beauty glue mainly focuses on the optimization of properties such as mildew resistance, weather resistance and mechanical properties. The existing technology with application number 202510245681.6 provides a method for preparing de-ethyl lactate type silicone sealant. Through the preparation and mixing process of fine hydrophilic fillers and hydrophobic fillers, the strength, transparency and curing speed of the sealant are improved. The existing technology with application number 202411613724.3 significantly improves the mildew resistance and comprehensive performance of beauty glue through the innovative design of reactive mildew inhibitors and composite fillers. The existing technology has obvious shortcomings in the antiviral performance of beauty glue, and related research is relatively limited, which makes it difficult to meet the market's growing demand for beauty glue products with reliable antiviral functions. In various public places such as beauty salons, hospitals and other crowded areas, as well as in daily life, people's demand for beauty glue products that can effectively resist viral invasion is becoming more and more urgent.

[0005] In summary, the existing technology has the following technical problems: the antiviral effect is poor. Developing a beauty gel with good antiviral performance is of great significance to improving the level of public health protection and the practical value of the material. Summary of the Invention

[0006] In response to the above technical problems, the present invention provides a method for preparing an antiviral beauty gel, and achieves the following invention objectives: the prepared beauty gel has excellent antiviral properties.

[0007] To achieve the above objectives, the technical solutions adopted are as follows:

[0008] A method for preparing an antiviral beauty gel, comprising the steps of synthesizing Ag-ZnO composite nanoparticles, amino-modifying silica, preparing Ag-ZnO composite modified silica, and preparing the antiviral beauty gel;

[0009] The Ag-ZnO composite nanoparticles are synthesized by using AgNO3 solution, sodium citrate solution and ZnO nanoparticles;

[0010] The amino modification of silicon dioxide: silicon dioxide is modified with 3-aminopropyltriethoxysilane to obtain amino-modified silicon dioxide;

[0011] The Ag-ZnO composite modified silica is prepared by reacting Ag-ZnO composite nanoparticles with amino-modified silica to obtain Ag-ZnO composite modified silica;

[0012] The raw materials used in the preparation of the antiviral beauty glue include: α,ω-dihydroxy polydimethylsiloxane, dimethyl silicone oil, quaternary ammonium salt modified siloxane, Ag-ZnO composite modified silica, zirconium phosphate nanosheets, a catalyst, and a cross-linking agent;

[0013] The catalyst is dibutyltin dilaurate. The cross-linking agent is one of methyltrimethoxysilane and methyltriethoxysilane.

[0014] The weight ratio of the raw materials used to prepare the antiviral beauty glue is: 60-70 parts of α,ω-dihydroxypolydimethylsiloxane, 10-20 parts of dimethyl silicone oil, 0.5-1.5 parts of quaternary ammonium salt modified siloxane, 0.5-2.5 parts of Ag-ZnO composite modified silica, 0.5-1 part of zirconium phosphate nanosheets, 0.1-0.5 parts of catalyst, and 6-12 parts of cross-linking agent.

[0015] The mass ratio of the AgNO3 solution, the sodium citrate solution and the ZnO nanoparticles is 1:(1-5):(20-100).

[0016] Furthermore, the Ag-ZnO composite nanoparticles are synthesized by dissolving zinc acetate in deionized water, adjusting the solution pH to alkaline, stirring uniformly, centrifuging, retaining the solid phase, drying, and calcining to obtain ZnO nanoparticles. The ZnO nanoparticles are then dissolved in deionized water, stirred uniformly, heated to 60-70°C, and AgNO3 solution and sodium citrate solution added, stirred for 2-2.5 hours, centrifuged, retaining the solid phase, and drying to obtain Ag-ZnO composite nanoparticles. Preferably, the pH of the solution is adjusted to 9-10. The calcination temperature is 400-500°C for 2-2.5 hours.

[0017] Furthermore, in the Ag-ZnO composite nanoparticle synthesis step, the mass ratio of zinc acetate to deionized water is 1:(15-20). The mass ratio of the ZnO nanoparticles to deionized water is 1:(35-40). The concentration of the AgNO3 solution is 0.3-0.5 mol / L, and the mass fraction of the sodium citrate solution is 1-2%.

[0018] Furthermore, the silica is amino-modified: silica and anhydrous ethanol are stirred evenly, a silane coupling agent is added, and then the pH value of the reaction system is adjusted to 5-6, stirred at 100-200 rpm for 2-2.5 hours at room temperature, and then centrifuged at a centrifugal rate of 8000-9000 rpm for 10-20 minutes. The solid phase is retained and vacuum dried at 60-70°C for 4-5 hours to obtain amino-modified silica.

[0019] Furthermore, the Ag-ZnO composite modified silica is prepared by adding amino-modified silica and Ag-ZnO composite nanoparticles to deionized water, stirring evenly, adjusting the pH value of the reaction system to 6-7, stirring at room temperature for 2-4 hours, and then centrifuging and drying to obtain Ag-ZnO composite modified silica.

[0020] Furthermore, the antiviral beauty glue is prepared as follows: α, ω-dihydroxy polydimethylsiloxane and dimethyl silicone oil are added to a double planetary mixer, the stirring rate is set to 100-150 rpm, the dispersion rate is 6000-7000 rpm, and stirring is carried out for 30-40 minutes; then quaternary ammonium salt modified siloxane, Ag-ZnO composite modified silica, and zirconium phosphate nanosheets are added to the mixer, the stirring rate is increased to 200-300 rpm, the dispersion rate is 7000-8000 rpm, and stirring is carried out for 60-70 minutes; the catalyst and cross-linking agent are added to the mixer, and stirring is continued for 30-40 minutes.

[0021] Furthermore, the antiviral beauty glue is prepared as follows: the mixed glue solution is transferred to a vacuum degassing machine for degassing, the vacuum is maintained at -0.09 MPa to -0.1 MPa, and the degassing time is 30-60 minutes.

[0022] The beneficial effects of the present invention are as follows:

[0023] (1) The antiviral beauty gel prepared by the present invention has excellent antiviral performance, and the inactivation rate of influenza A H3N2 virus reaches 99.85-99.93%. The beauty gel of the present invention can inhibit the activity of the virus by releasing silver ions and the photocatalytic effect of ZnO, thereby reducing the risk of cross-infection. The modified silica carrier can stably disperse the antibacterial ingredients, avoid agglomeration and failure, and ensure long-term antiviral effect.

[0024] (2) The antiviral beauty glue prepared by the present invention has a significantly shorter surface drying time, which reaches 13.5-16.0 min. A solid film can be quickly formed on the surface of the beauty glue, thereby improving construction efficiency, avoiding surface contamination that affects the appearance and sealing, and enabling the glue layer to have initial water resistance and scrub resistance more quickly, thereby improving the reliability of initial use.

[0025] (3) The antiviral beauty glue prepared by the present invention has excellent physical properties, with a tensile strength of 2.39-2.68 MPa and an adhesive strength of 1.87-2.26 MPa, which can make the beauty glue firmly bonded to the substrate and reduce the problems of breakage and debonding; the elastic recovery rate reaches 95-98%, and the Shore hardness is 57-62 Shore A, ensuring that the adhesive layer adapts to the deformation of the substrate and prevents the adhesive layer from cracking, while avoiding collapse caused by the adhesive layer being too soft or brittle cracking caused by being too hard. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0027] Example 1: Preparation method of antiviral beauty gel

[0028] A method for preparing an antiviral beauty gel comprises the following steps:

[0029] Step 1: Synthesis of Ag-ZnO composite nanoparticles

[0030] Zinc acetate was dissolved in deionized water at a mass ratio of 1:15. NaOH was added to adjust the solution to pH 9, and the mixture was stirred at 100 rpm for 1 hour before centrifugation at 9,000 rpm for 15 minutes. The mixture was then dried at 60°C for 1 hour and calcined at 500°C for 2 hours to produce ZnO nanoparticles. The ZnO nanoparticles were then mixed with deionized water at a mass ratio of 1:35 and heated to 60°C. Then, AgNO₃ solution and sodium citrate solution were added at a mass ratio of 1:1:20. The mixture was stirred at 200 rpm for 2 hours, and then centrifuged at 10,000 rpm for 20 minutes. The solid phase was retained and vacuum dried at 55°C for 2 hours to produce Ag-ZnO composite nanoparticles. The concentration of the AgNO₃ solution was 0.3 mol / L, and the mass fraction of the sodium citrate solution was 1%.

[0031] Step 2: Amino modification of silica

[0032] Silica and anhydrous ethanol were mixed at a mass ratio of 1:15 and stirred at 100 rpm for 30 minutes. 3-aminopropyltriethoxysilane was added at a mass ratio of 3-aminopropyltriethoxysilane to silica of 1:10. The pH of the reaction system was adjusted to 5 with acetic acid. The mixture was stirred at 100 rpm for 2 hours at room temperature and then centrifuged at a speed of 8000 rpm for 10 minutes. The solid phase was retained and vacuum dried at 60°C for 4 hours to obtain amino-modified silica. The silica particle size was 50-100 nm.

[0033] Step 3: Prepare Ag-ZnO composite modified silica

[0034] Amino-modified silica and Ag-ZnO composite nanoparticles were added to deionized water and stirred evenly. The mass ratio of amino-modified silica, Ag-ZnO composite nanoparticles and deionized water was 1:0.1:110. Then, hydrochloric acid was added dropwise under stirring to adjust the pH value of the reaction system to 6. The mixture was stirred at 100 rpm for 2 h at room temperature and then centrifuged at a centrifugal speed of 8000 rpm for 15 min. The solid phase was retained and vacuum dried at 60°C for 22 h to obtain Ag-ZnO composite modified silica.

[0035] Step 4: Prepare antiviral beauty gel

[0036] α,ω-dihydroxypolydimethylsiloxane and dimethyl silicone oil were added to a dual planetary mixer. Maintaining a vacuum pressure of -0.08 MPa, the mixer was stirred at a rate of 100 rpm and a dispersion rate of 6000 rpm for 30 minutes. Quaternary ammonium salt-modified siloxane, Ag-ZnO composite-modified silica, and zirconium phosphate nanosheets were then added to the mixer. The stirring rate was increased to 200 rpm and the dispersion rate was 7000 rpm, and the mixture was stirred for 60 minutes. The catalyst and crosslinker were added to the mixer and stirred for another 30 minutes to obtain a mixed adhesive. The catalyst was dibutyltin dilaurate, and the crosslinker was methyltrimethoxysilane.

[0037] The raw material dosage is: 60 parts of α,ω-dihydroxypolydimethylsiloxane, 20 parts of dimethyl silicone oil, 1.5 parts of quaternary ammonium salt modified siloxane, 2.5 parts of Ag-ZnO composite modified silica, 1 part of zirconium phosphate nanosheets, 0.5 parts of catalyst, and 12 parts of crosslinking agent. The above parts are all parts by weight.

[0038] The mixed glue solution was transferred to a vacuum degassing machine and degassed at -0.09 MPa for 30 minutes, then filled into a plastic finished product bottle, and sealed with nitrogen to obtain the finished antiviral beauty glue.

[0039] Example 2: Preparation method of antiviral beauty gel

[0040] A method for preparing an antiviral beauty gel comprises the following steps:

[0041] Step 1: Synthesis of Ag-ZnO composite nanoparticles

[0042] Zinc acetate was dissolved in deionized water at a mass ratio of 1:17. NaOH was added to adjust the solution to pH 9, and the mixture was stirred at 100 rpm for 1 hour. The mixture was then centrifuged at 9,000 rpm for 15 minutes, dried at 65°C for 1 hour, and calcined at 450°C for 2 hours to produce ZnO nanoparticles. The ZnO nanoparticles were then mixed with deionized water at a mass ratio of 1:35 and heated to 65°C. Then, AgNO₃ solution and sodium citrate solution were added at a mass ratio of 1:3:40. The mixture was stirred at 200 rpm for 2 hours, and then centrifuged at 10,000 rpm for 25 minutes. The solid phase was retained and vacuum dried at 55°C for 2.5 hours to produce Ag-ZnO composite nanoparticles. The concentration of the AgNO₃ solution was 0.3 mol / L, and the mass fraction of the sodium citrate solution was 1%.

[0043] Step 2: Amino modification of silica

[0044] Silica and anhydrous ethanol were mixed at a mass ratio of 1:20 and stirred at 100 rpm for 35 minutes. 3-aminopropyltriethoxysilane was added at a mass ratio of 3-aminopropyltriethoxysilane to silica of 1:13. The pH of the reaction system was adjusted to 5 with acetic acid. The mixture was stirred at 100 rpm for 2.5 hours at room temperature and then centrifuged at a speed of 8000 rpm for 15 minutes. The solid phase was retained and vacuum dried at 65°C for 4.5 hours to obtain amino-modified silica. The silica particle size was 50-100 nm.

[0045] Step 3: Prepare Ag-ZnO composite modified silica

[0046] Amino-modified silica and Ag-ZnO composite nanoparticles were added to deionized water and stirred evenly. The mass ratio of amino-modified silica, Ag-ZnO composite nanoparticles and deionized water was 1:0.3:130. Then, hydrochloric acid was added dropwise under stirring to adjust the pH value of the reaction system to 6. The mixture was stirred at 100 rpm for 2.5 hours at room temperature and then centrifuged at a centrifugal speed of 8000 rpm for 15 minutes. The solid phase was retained and vacuum dried at 65°C for 22.5 hours to obtain Ag-ZnO composite modified silica.

[0047] Step 4: Prepare antiviral beauty gel

[0048] α,ω-dihydroxypolydimethylsiloxane and dimethyl silicone oil were added to a dual planetary mixer. The vacuum pressure inside the mixer was maintained at -0.08 MPa. The stirring rate was set to 100 rpm and the dispersion rate to 6000 rpm, and the mixture was stirred for 30 minutes. Quaternary ammonium salt-modified siloxane, Ag-ZnO composite-modified silica, and zirconium phosphate nanosheets were then added to the mixer. The stirring rate was increased to 200 rpm and the dispersion rate to 7000 rpm, and the mixture was stirred for 70 minutes. A catalyst and a crosslinker were added to the mixer and stirred for another 30 minutes to obtain a mixed adhesive solution. The catalyst was dibutyltin dilaurate, and the crosslinker was methyltriethoxysilane.

[0049] The raw material dosage is: 63 parts of α,ω-dihydroxypolydimethylsiloxane, 18 parts of dimethyl silicone oil, 1.3 parts of quaternary ammonium salt modified siloxane, 2 parts of Ag-ZnO composite modified silica, 0.8 parts of zirconium phosphate nanosheets, 0.4 parts of catalyst, and 11 parts of crosslinking agent. The above parts are all parts by weight.

[0050] The mixed glue solution was transferred to a vacuum degassing machine and degassed at -0.09 MPa for 30 minutes, then filled into a plastic finished product bottle, and sealed with nitrogen to obtain the finished antiviral beauty glue.

[0051] Example 3: Preparation method of antiviral beauty gel

[0052] A method for preparing an antiviral beauty gel comprises the following steps:

[0053] Step 1: Synthesis of Ag-ZnO composite nanoparticles

[0054] Zinc acetate was dissolved in deionized water at a mass ratio of 1:18. NaOH was added to adjust the solution to pH 9, stirred at 200 rpm for 1.5 h, centrifuged at 10,000 rpm for 18 min, and then dried at 65°C for 1.5 h. After drying, the mixture was calcined at 450°C for 2.5 h to obtain ZnO nanoparticles. ZnO nanoparticles were mixed with deionized water at a mass ratio of 1:38 and heated to 65°C. AgNO3 solution and sodium citrate solution were then added at a mass ratio of 1:3:60 to the ZnO nanoparticles. The mixture was stirred at 200 rpm for 2.5 h, centrifuged at 11,000 rpm for 25 min, and the solid phase was retained and vacuum dried at 58°C for 2.5 h to obtain Ag-ZnO composite nanoparticles. The concentration of the AgNO3 solution is 0.5 mol / L; the mass fraction of the sodium citrate solution is 2%.

[0055] Step 2: Amino modification of silica

[0056] Silica and anhydrous ethanol were mixed in a mass ratio of 1:23 and stirred at 200 rpm for 35 minutes. 3-aminopropyltriethoxysilane was added at a mass ratio of 3-aminopropyltriethoxysilane to silica of 1:15. The pH of the reaction system was adjusted to 5.5 with acetic acid. The mixture was stirred at 200 rpm for 2.5 hours at room temperature and then centrifuged at a speed of 8500 rpm for 15 minutes. The solid phase was retained and vacuum dried at 65°C for 4.5 hours to obtain amino-modified silica. The silica particle size was 50-100 nm.

[0057] Step 3: Prepare Ag-ZnO composite modified silica

[0058] Amino-modified silica and Ag-ZnO composite nanoparticles were added to deionized water and stirred evenly. The mass ratio of amino-modified silica, Ag-ZnO composite nanoparticles and deionized water was 1:0.5:150. Then, hydrochloric acid was added dropwise under stirring to adjust the pH value of the reaction system to 7. The mixture was stirred at 200 rpm for 3 hours at room temperature and then centrifuged at a centrifugal speed of 8500 rpm for 18 minutes. The solid phase was retained and vacuum dried at 65°C for 23 hours to obtain Ag-ZnO composite modified silica.

[0059] Step 4: Prepare antiviral beauty gel

[0060] α,ω-dihydroxypolydimethylsiloxane and dimethyl silicone oil were added to a dual planetary mixer. Maintaining a vacuum pressure of -0.09 MPa, the mixer was stirred at a rate of 150 rpm and a dispersion rate of 6500 rpm for 35 minutes. Quaternary ammonium salt-modified siloxane, Ag-ZnO composite-modified silica, and zirconium phosphate nanosheets were then added to the mixer. The stirring rate was increased to 250 rpm and the dispersion rate was 7500 rpm, and the mixture was stirred for 65 minutes. A catalyst and a crosslinker were added to the mixer and stirred for a further 35 minutes to obtain a mixed adhesive. The catalyst was dibutyltin dilaurate, and the crosslinker was methyltrimethoxysilane.

[0061] The raw material dosage is: 65 parts of α,ω-dihydroxypolydimethylsiloxane, 15 parts of dimethyl silicone oil, 1 part of quaternary ammonium salt modified siloxane, 1.6 parts of Ag-ZnO composite modified silica, 0.8 parts of zirconium phosphate nanosheets, 0.3 parts of catalyst, and 9 parts of crosslinking agent. The above parts are all parts by weight.

[0062] The mixed glue solution was transferred to a vacuum degassing machine and degassed at -0.1 MPa for 45 minutes, and then filled into plastic finished product bottles. After nitrogen filling and sealing, the antiviral beauty glue product was obtained.

[0063] Example 4: Preparation method of antiviral beauty gel

[0064] A method for preparing an antiviral beauty gel comprises the following steps:

[0065] Step 1: Synthesis of Ag-ZnO composite nanoparticles

[0066] Zinc acetate was dissolved in deionized water at a mass ratio of 1:20. NaOH was added to adjust the solution to pH 10, and the mixture was stirred at 200 rpm for 1.5 h. The mixture was then centrifuged at 10,000 rpm for 19 min, dried at 68°C for 1.5 h, and calcined at 400°C for 2.5 h to obtain ZnO nanoparticles. ZnO nanoparticles were mixed with deionized water at a mass ratio of 1:40, heated to 68°C, and then AgNO3 solution and sodium citrate solution were added at a mass ratio of 1:4:80 to ZnO nanoparticles. The mixture was stirred at 300 rpm for 2.5 h, and then centrifuged at 11,000 rpm for 28 min. The solid phase was retained and vacuum dried at 60°C for 2.5 h to obtain Ag-ZnO composite nanoparticles. The concentration of the AgNO3 solution is 0.5 mol / L; the mass fraction of the sodium citrate solution is 2%.

[0067] Step 2: Amino modification of silica

[0068] Silica and anhydrous ethanol were mixed in a mass ratio of 1:28, stirred at 200 rpm for 40 minutes, 3-aminopropyltriethoxysilane was added, and the mass ratio of 3-aminopropyltriethoxysilane to silica was 1:18. The pH value of the reaction system was adjusted to 6 with acetic acid. The mixture was stirred at 200 rpm at room temperature for 2.5 hours, and then centrifuged at a speed of 9000 rpm for 18 minutes. The solid phase was retained and vacuum dried at 68°C for 4.5 hours to obtain amino-modified silica. The silica particle size was 50-100 nm.

[0069] Step 3: Prepare Ag-ZnO composite modified silica

[0070] Amino-modified silica and Ag-ZnO composite nanoparticles were added to deionized water and stirred evenly. The mass ratio of amino-modified silica, Ag-ZnO composite nanoparticles and deionized water was 1:0.8:180. Then, hydrochloric acid was added dropwise under stirring to adjust the pH value of the reaction system to 7. The mixture was stirred at 200 rpm at room temperature for 3.5 hours, and then centrifuged at a centrifugal speed of 9000 rpm for 20 minutes. The solid phase was retained and vacuum dried at 70°C for 23.5 hours to obtain Ag-ZnO composite modified silica.

[0071] Step 4: Prepare antiviral beauty gel

[0072] α,ω-dihydroxypolydimethylsiloxane and dimethyl silicone oil were added to a dual planetary mixer. Maintaining a vacuum pressure of -0.1 MPa, the mixer was stirred at a rate of 150 rpm and a dispersion rate of 7000 rpm for 40 minutes. Quaternary ammonium salt-modified siloxane, Ag-ZnO composite-modified silica, and zirconium phosphate nanosheets were then added to the mixer. The stirring rate was increased to 300 rpm and the dispersion rate to 8000 rpm, and the mixture was stirred for 70 minutes. A catalyst and a crosslinker were added to the mixer and stirred for another 40 minutes to obtain a mixed adhesive. The catalyst was dibutyltin dilaurate, and the crosslinker was methyltrimethoxysilane.

[0073] The raw material dosage is: 68 parts of α,ω-dihydroxypolydimethylsiloxane, 13 parts of dimethyl silicone oil, 0.8 parts of quaternary ammonium salt modified siloxane, 1 part of Ag-ZnO composite modified silica, 0.6 parts of zirconium phosphate nanosheets, 0.2 parts of catalyst, and 8 parts of crosslinking agent. The above parts are all parts by weight.

[0074] The mixed glue solution was transferred to a vacuum degassing machine and degassed at -0.1 MPa for 60 minutes, and then filled into plastic finished bottles. After nitrogen filling and sealing, the antiviral beauty glue product was obtained.

[0075] Example 5: Preparation method of antiviral beauty gel

[0076] A method for preparing an antiviral beauty gel comprises the following steps:

[0077] Step 1: Synthesis of Ag-ZnO composite nanoparticles

[0078] Zinc acetate was dissolved in deionized water at a mass ratio of 1:20. NaOH was added to adjust the solution to pH 10. The solution was stirred at 200 rpm for 1.5 h and then centrifuged at 10,000 rpm for 20 min. The solution was then dried at 70°C for 1.5 h and calcined at 400°C for 2.5 h to obtain ZnO nanoparticles. ZnO nanoparticles were mixed with deionized water at a mass ratio of 1:40 and heated to 70°C. AgNO3 solution and sodium citrate solution were then added at a mass ratio of 1:5:100 to ZnO nanoparticles. The solution was stirred at 300 rpm for 2.5 h and then centrifuged at 11,000 rpm for 30 min. The solid phase was retained and vacuum dried at 60°C for 3 h to obtain Ag-ZnO composite nanoparticles. The concentration of the AgNO3 solution is 0.5 mol / L; the mass fraction of the sodium citrate solution is 2%.

[0079] Step 2: Amino modification of silica

[0080] Silica and anhydrous ethanol were mixed at a mass ratio of 1:30 and stirred at 200 rpm for 40 minutes. 3-aminopropyltriethoxysilane was added at a mass ratio of 3-aminopropyltriethoxysilane to silica of 1:20. The pH of the reaction system was adjusted to 6 with acetic acid. The mixture was stirred at 200 rpm at room temperature for 2.5 hours, and then centrifuged at 9000 rpm for 20 minutes. The solid phase was retained and vacuum dried at 70°C for 5 hours to obtain amino-modified silica. The silica particle size was 50-100 nm.

[0081] Step 3: Prepare Ag-ZnO composite modified silica

[0082] Amino-modified silica and Ag-ZnO composite nanoparticles were added to deionized water and stirred evenly. The mass ratio of amino-modified silica, Ag-ZnO composite nanoparticles and deionized water was 1:1:200. Then, hydrochloric acid was added dropwise under stirring to adjust the pH value of the reaction system to 7. The mixture was stirred at 200 rpm for 4 hours at room temperature and then centrifuged at a centrifugal speed of 9000 rpm for 20 minutes. The solid phase was retained and vacuum dried at 70°C for 24 hours to obtain Ag-ZnO composite modified silica.

[0083] Step 4: Prepare antiviral beauty gel

[0084] α,ω-dihydroxypolydimethylsiloxane and dimethyl silicone oil were added to a dual planetary mixer. Maintaining a vacuum pressure of -0.1 MPa, the mixer was stirred at a rate of 150 rpm and a dispersion rate of 7000 rpm for 40 minutes. Quaternary ammonium salt-modified siloxane, Ag-ZnO composite-modified silica, and zirconium phosphate nanosheets were then added to the mixer. The stirring rate was increased to 300 rpm and the dispersion rate to 8000 rpm, and the mixture was stirred for 70 minutes. A catalyst and a crosslinker were added to the mixer and stirred for another 40 minutes to obtain a mixed adhesive. The catalyst was dibutyltin dilaurate, and the crosslinker was methyltriethoxysilane.

[0085] The raw material dosage is: 70 parts of α,ω-dihydroxypolydimethylsiloxane, 10 parts of dimethyl silicone oil, 0.5 parts of quaternary ammonium salt modified siloxane, 0.5 parts of Ag-ZnO composite modified silica, 0.5 parts of zirconium phosphate nanosheets, 0.1 parts of catalyst, and 6 parts of crosslinking agent. The above parts are all parts by weight.

[0086] The mixed glue solution was transferred to a vacuum degassing machine and degassed at -0.1 MPa for 60 minutes, and then filled into plastic finished bottles. After nitrogen filling and sealing, the antiviral beauty glue product was obtained.

[0087] Comparative Example Preparation Method of a Beauty Glue

[0088] The raw materials and amounts used are: 65 parts α,ω-dihydroxypolydimethylsiloxane, 15 parts dimethyl silicone oil, 1 part quaternary ammonium salt-modified siloxane, 1.5 parts silicon dioxide, 0.8 parts zirconium phosphate nanosheets, 0.3 parts catalyst, and 10 parts crosslinking agent. All parts are by weight. The catalyst is dibutyltin dilaurate. The crosslinking agent is methyltrimethoxysilane.

[0089] The specific steps are as follows: add α,ω-dihydroxy polydimethylsiloxane and dimethyl silicone oil to a double planetary mixer, maintain the vacuum negative pressure in the double planetary mixer at -0.09MPa, set the stirring rate to 150rpm, the dispersion rate to 6500rpm, and stir for 35 minutes. Then add quaternary ammonium salt modified siloxane, silica, and zirconium phosphate nanosheets to the mixer, increase the stirring rate to 250rpm, the dispersion rate to 7500rpm, and stir for 65 minutes. Add the catalyst and cross-linking agent to the mixer and continue stirring for 35 minutes to obtain a mixed glue solution. Transfer the mixed glue solution to a vacuum degassing machine, degas at -0.1MPa for 45 minutes, then fill it into plastic finished product bottles, fill it with nitrogen and seal it to obtain the finished antiviral beauty glue.

[0090] Example 6 Performance Test

[0091] (1) The physical properties of the cosmetic glues prepared in Examples 1-5 and the comparative example were tested for tensile strength, bonding strength, elastic recovery rate, Shore hardness, etc. The specific test results are shown in Table 1.

[0092] Table 1 Test results of physical properties of Examples 1-5 and comparative example cosmetic glue

[0093] The test results in Table 1 show that the physical properties of Examples 1-5 are significantly improved compared to the comparative examples. The tensile strength reaches 2.39-2.68 MPa. This high tensile strength allows the adhesive layer to withstand external forces, prevent breakage, and extend its service life. The adhesive strength is 1.87-2.26 MPa. This high adhesive strength ensures a strong bond between the cosmetic adhesive and the substrate, reducing debonding caused by thermal expansion and contraction. The elastic recovery rate is 95-98%, and its excellent elastic recovery ability can adapt to slight deformation of the substrate, prevent cracking of the adhesive layer, and maintain the integrity of the seal. The Shore hardness is 57-62 Shore A. This moderate Shore hardness balances flexibility and support, adapting to substrate deformation, reducing stress concentration, and avoiding collapse caused by an overly soft adhesive layer or brittle cracking caused by an overly hard adhesive layer.

[0094] (2) The performance test of the surface drying time of the beauty glue obtained in Examples 1-5 and the comparative example was carried out. The specific test results are shown in Table 2.

[0095] Table 2 Performance test results of surface drying time of cosmetic glue of Examples 1-5 and comparative example

[0096] As can be seen from the test results in Table 2, the surface-drying time of Examples 1-5 is significantly lower than that of the comparative example, reaching 13.5-16.0 min. The short surface-drying time means that a solid film can be quickly formed on the surface of the beauty glue, thereby improving construction efficiency, avoiding surface contamination that affects the appearance and sealing, and enabling the glue layer to quickly acquire initial water and scrub resistance, thereby improving initial use reliability.

[0097] (3) The antiviral performance of the cosmetic glue obtained in Examples 1-5 and the comparative example was tested. The specific test results are shown in Table 3.

[0098] Table 3 Antiviral performance test results of Examples 1-5 and Comparative Example Beauty Gel

[0099] As can be seen from the test results in Table 3, the antiviral performance of Examples 1-5 is significantly improved compared with the control example, and the virus inactivation rate reaches 99.85-99.93%. The beauty gel containing Ag-ZnO composite nanoparticles can inhibit viral activity by releasing silver ions and the photocatalytic effect of ZnO, thereby reducing the risk of cross-infection. The modified silica carrier can stably disperse the antibacterial ingredients, avoid agglomeration and failure, and ensure long-term antiviral effect.

[0100] In summary, from the test analysis of physical properties, antiviral properties and surface drying time, it can be seen that the antiviral beauty glue of the present invention has good physical properties, excellent antiviral properties and a shorter surface drying time. It meets the high standards of home decoration in terms of construction convenience, durability, hygiene and safety, and is especially suitable for modern family scenes with requirements for environmental protection and antiviral properties.

[0101] The specific parameters of the raw materials used in the present invention are as follows:

[0102] The viscosity of the quaternary ammonium salt-modified silicone is 100-500 mPa·s, and the molecular weight is 1000-3000 g / mol.

[0103] The silica particle size is 50-100 nm.

[0104] The particle size of the zirconium phosphate nanosheets is 0.5-2 μm.

[0105] Obviously, there are many specific implementation methods that can be changed under the concept of the present invention. Here, it should be stated that any changes made under the inventive concept of the present invention will fall within the scope of protection of the present invention.

Claims

1. A method for preparing an antiviral beauty gel, characterized in that: The method includes the steps of synthesizing Ag-ZnO composite nanoparticles, modifying silica with amino groups, preparing Ag-ZnO composite modified silica, and preparing antiviral beauty glue; The Ag-ZnO composite nanoparticles are synthesized by dissolving zinc acetate in deionized water, adjusting the pH value of the solution to alkaline, stirring the solution uniformly, centrifuging the solution, and then drying and calcining the solution to obtain ZnO nanoparticles; then dissolving the ZnO nanoparticles in deionized water, stirring the solution uniformly, heating the solution to 60-70° C., adding AgNO 3 solution and sodium citrate solution, and stirring the solution for 2-2.5 hours; The amino modification of silicon dioxide: silicon dioxide is modified with 3-aminopropyltriethoxysilane to obtain amino-modified silicon dioxide; The Ag-ZnO composite modified silica is prepared by adding amino-modified silica and Ag-ZnO composite nanoparticles into deionized water, stirring evenly, adjusting the pH value of the reaction system to 6-7, and stirring at room temperature for 2-4 hours; The raw materials used in the preparation of the antiviral beauty glue include: α,ω-dihydroxy polydimethylsiloxane, dimethyl silicone oil, quaternary ammonium salt modified siloxane, Ag-ZnO composite modified silica, zirconium phosphate nanosheets, a catalyst, and a cross-linking agent; The catalyst is dibutyltin dilaurate.

2. The method for preparing an antiviral beauty gel according to claim 1, characterized in that: The weight ratio of the raw materials used to prepare the antiviral beauty glue is: 60-70 parts of α,ω-dihydroxypolydimethylsiloxane, 10-20 parts of dimethyl silicone oil, 0.5-1.5 parts of quaternary ammonium salt modified siloxane, 0.5-2.5 parts of Ag-ZnO composite modified silica, 0.5-1 part of zirconium phosphate nanosheets, 0.1-0.5 parts of catalyst, and 6-12 parts of cross-linking agent.

3. The method for preparing an antiviral beauty gel according to claim 1, characterized in that: The mass ratio of zinc acetate to deionized water in the Ag-ZnO composite nanoparticle synthesis step is 1:(15-20).

4. The method for preparing an antiviral cosmetic gel according to claim 1, characterized in that: The mass ratio of the AgNO3 solution, the sodium citrate solution and the ZnO nanoparticles is 1:(1-5):(20-100).

5. The method for preparing an antiviral cosmetic gel according to claim 1, characterized in that: The amino modification of silicon dioxide: silicon dioxide and anhydrous ethanol are stirred evenly, a silane coupling agent is added, and then the pH value of the reaction system is adjusted to acidic, and stirred at room temperature for 2-2.5 hours.

6. The method for preparing an antiviral cosmetic gel according to claim 1, characterized in that: The mass ratio of the amino-modified silica, Ag-ZnO composite nanoparticles and deionized water is 1:(0.1-1):(110-200).

7. The method for preparing an antiviral cosmetic gel according to claim 1, characterized in that: The preparation method of the antiviral beauty glue is as follows: α, ω-dihydroxy polydimethylsiloxane and dimethyl silicone oil are added to a double planetary mixer, the vacuum negative pressure is between -0.08 MPa and -0.1 MPa, the stirring rate is set to 100-150 rpm, the dispersion rate is set to 6000-7000 rpm, and stirring is carried out for 30-40 minutes; then quaternary ammonium salt modified siloxane, Ag-ZnO composite modified silica, and zirconium phosphate nanosheets are added to the mixer, the stirring rate is increased to 200-300 rpm, the dispersion rate is set to 7000-8000 rpm, and stirring is carried out for 60-70 minutes; the catalyst and the cross-linking agent are added to the mixer, and stirring is continued for 30-40 minutes.

8. The method for preparing an antiviral cosmetic gel according to claim 1, characterized in that: The cross-linking agent is one of methyltrimethoxysilane and methyltriethoxysilane.

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