Use of a transparent ABS resin composition in the production of an antibacterial transparent article and an antibacterial transparent article

Abstract

The application discloses a kind of purposes of transparent ABS resin composition in preparation antibacterial type transparent product and antibacterial type transparent product, the transparent ABS resin composition uses nano platinum gold as antibacterial antiviral additive, while compounding methyl methacrylate-butadiene-styrene copolymer, pentaerythritol, diphenyl dimethoxysilane as mixed modifier, and when preparation, make methyl methacrylate-butadiene-styrene copolymer and nano platinum gold first mixed preparation intermediate again with other raw materials mixed extrusion, not only make the ABS resin composition of the application have excellent antibacterial antiviral capacity, especially antibacterial antiviral capacity can be kept, long-acting good, but also obtain the unexpected and surprising high transparency, suitable for being applied in the preparation of antibacterial type transparent product, can be made into antibacterial type transparent product with excellent antibacterial capacity and good transparency.

Description

[0001] The present application is a divisional application of the Chinese Invention Patent Application No. 2023100447955, with the title of "Transparent ABS Resin Composition, Preparation Method Thereof and Application", filed on January 30, 2023. TECHNICAL FIELD

[0002] The present application relates to the field of high polymer materials, in particular to a high polymer material with high transparency, strong antibacterial and antiviral ability, and long-term stable performance, and specifically relates to the use of a transparent ABS resin composition in the preparation of an antibacterial transparent product and the antibacterial transparent product. BACKGROUND

[0003] Acrylonitrile-butadiene-styrene copolymer (ABS resin for short) is a thermoplastic polymer material with high strength, good toughness and excellent processing performance, and is therefore widely used in the fields of automobile industry, household appliances, packaging, construction and medical health. Humans live in an environment full of microorganisms, and some pathogenic bacteria such as mold, bacteria and viruses seriously endanger human health and even life. In terms of the fields in which ABS resin products are applied, they will often come into contact with the human body or food, and ABS resin products will inevitably contaminate and breed various pathogenic bacteria on their surfaces after long-term use, thus possibly causing cross-infection of the user due to contact with use, and the development of ABS resin with antibacterial and antiviral properties has extremely important practical significance in reducing the risk of transmission of pathogenic bacteria. However, ABS resin itself does not have antibacterial and antiviral properties and can become a medium for the transmission of pathogenic bacteria, thereby endangering the health of the user.

[0004] There are many methods for preparing antibacterial ABS resin materials at present, but it has been found in practice that the addition of commonly used antibacterial agents will cause the transparency of the material to be reduced or destroyed. For example, the commonly used silver series, copper series and zinc series antibacterial agents not only cause the transparency of the material to decrease significantly, but also introduce metal color into the material, and do not reach the antiviral level. For example, it is difficult for the current antibacterial ABS resin material to effectively resist the H1N1 influenza A virus. And the ABS resin material added with silver series, copper series and zinc series antibacterial agents will continuously migrate and precipitate silver, copper and zinc during use, and has poor stability. SUMMARY

[0005] The purpose of the present application is to overcome one or more of the deficiencies in the prior art and to provide a new transparent ABS resin composition with high transparency, strong antibacterial and antiviral ability, good durability, good mechanical properties and other advantages.

[0006] The present application also provides a preparation method of the above-mentioned transparent ABS resin composition.

[0007] The application also provides application of the transparent ABS resin composition in preparation of an antibacterial transparent product, such as a transparent water tank, which is beneficial to water quality and water level.

[0008] To achieve the above object, the application adopts a technical solution: a transparent ABS resin composition, raw materials of which include acrylonitrile-butadiene-styrene copolymer and additives, the additives including nano platinum gold, methyl methacrylate-butadiene-styrene copolymer, pentaerythritol and diphenyl dimethoxysilane; wherein, the nano platinum gold is added in the form of nano platinum gold solution, the nano platinum gold solution including the nano platinum gold and a solvent for dispersing the nano platinum gold, the methyl methacrylate-butadiene-styrene copolymer being in the form of powder particles with a particle size less than 12 μm;

[0009] The transparent ABS resin composition is prepared by mixing the nano platinum gold solution and the powder particles of the methyl methacrylate-butadiene-styrene copolymer, drying to form an intermediate with the nano platinum gold attached to the powder particles of the methyl methacrylate-butadiene-styrene copolymer;

[0010] Mixing the intermediate with the remaining other raw materials and melt extruding;

[0011] The mass ratio of the acrylonitrile-butadiene-styrene copolymer, the methyl methacrylate-butadiene-styrene copolymer, the pentaerythritol, the diphenyl dimethoxysilane and the nano platinum gold is 1:0.0001-0.0012:0.0003-0.0009:0.002-0.009:0.0001-0.0008.

[0012] According to some preferred and specific aspects of the application, the particle size of the methyl methacrylate-butadiene-styrene copolymer is 4-10 μm.

[0013] According to some preferred and specific aspects of the application, the particle size of the nano platinum gold is 3-8 nm.

[0014] According to some preferred aspects of the application, the mass ratio of the methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold is 1:0.2-1.2.

[0015] According to some preferred aspects of the present application, the mass ratio of the acrylonitrile-butadiene-styrene copolymer, the methyl methacrylate-butadiene-styrene copolymer, the pentaerythritol, the diphenyl dimethoxysilane and the nano platinum gold is 1:0.0002-0.0012:0.0005-0.00085:0.002-0.0065:0.0001-0.0008.

[0016] According to some preferred aspects of the present application, the melt index of the acrylonitrile-butadiene-styrene copolymer is 10-25 g / 10 min. In some embodiments of the present application, the melt index of the acrylonitrile-butadiene-styrene copolymer is 12-25 g / 10 min. In some embodiments of the present application, the melt index of the acrylonitrile-butadiene-styrene copolymer is 15-25 g / 10 min.

[0017] According to some preferred aspects of the present application, the melt index of the methyl methacrylate-butadiene-styrene copolymer is 17-27 g / 10 min. In some embodiments of the present application, the melt index of the methyl methacrylate-butadiene-styrene copolymer is 20-27 g / 10 min.

[0018] In the present application, the melt index of the acrylonitrile-butadiene-styrene copolymer is measured at a temperature of 220°C and a load of 10 kg, and the melt index of the methyl methacrylate-butadiene-styrene copolymer is measured at a temperature of 240°C and a load of 3.8 kg.

[0019] According to some preferred aspects of the present application, in the raw materials of the transparent ABS resin composition, the acrylonitrile-butadiene-styrene copolymer accounts for 90%-99.7%, the methyl methacrylate-butadiene-styrene copolymer accounts for 0.01%-1%, the pentaerythritol accounts for 0.03%-0.85%, the diphenyl dimethoxy silane accounts for 0.2%-8%, and the nano platinum gold accounts for 0.01%-0.08%, all in terms of mass percentage. Further, in the raw materials of the transparent ABS resin composition, the acrylonitrile-butadiene-styrene copolymer accounts for 95%-99.7%, the methyl methacrylate-butadiene-styrene copolymer accounts for 0.02%-0.5%, the pentaerythritol accounts for 0.05%-0.5%, the diphenyl dimethoxy silane accounts for 0.2%-6%, and the nano platinum gold accounts for 0.01%-0.08%, all in terms of mass percentage. Still further, in the raw materials of the transparent ABS resin composition, the acrylonitrile-butadiene-styrene copolymer accounts for 97%-99.7%, the methyl methacrylate-butadiene-styrene copolymer accounts for 0.02%-0.3%, the pentaerythritol accounts for 0.05%-0.2%, the diphenyl dimethoxy silane accounts for 0.2%-3%, and the nano platinum gold accounts for 0.01%-0.08%, all in terms of mass percentage.

[0020] In some preferred embodiments of the present application, in the raw materials of the transparent ABS resin composition, the acrylonitrile-butadiene-styrene copolymer accounts for 99.1%-99.7%, the methyl methacrylate-butadiene-styrene copolymer accounts for 0.02%-0.1%, the pentaerythritol accounts for 0.05%-0.1%, the diphenyl dimethoxy silane accounts for 0.2%-0.8%, and the nano platinum gold accounts for 0.01%-0.08%, all in terms of mass percentage.

[0021] According to some preferred aspects of the present application, the mass ratio of the methyl methacrylate-butadiene-styrene copolymer, the pentaerythritol, and the diphenyl dimethoxy silane is 1:1-2:8-12.

[0022] According to some preferred aspects of the present application, the method for preparing the nano platinum gold solution comprises: under the protection of a protective gas, in the presence of polyvinylpyrrolidone, and under heating, reacting potassium chloroplatinate, sodium borohydride, citric acid, lactic acid in water to generate nano platinum gold precursor particles, separating out the nano platinum gold precursor particles and dispersing them with a solvent, ultrasonic oscillation, and then irradiating with ultraviolet light of wavelength 200-350 nm to obtain the nano platinum gold solution.

[0023] According to some preferred and specific aspects of the present application, the mass ratio of the potassium chloroplatinate, the sodium borohydride, the citric acid, the lactic acid, and the polyvinylpyrrolidone is 1:10-16:25-35:10-20:20-30.

[0024] In some embodiments of the present application, the heating condition allows the reaction to be carried out at a temperature of 55-65℃. In some embodiments of the present application, the protective gas can be nitrogen, helium, or the like.

[0025] According to some preferred aspects of the present application, the mass percentage of nano platinum gold in the nano platinum gold solution is 0.001%-0.5% in terms of mass percentage.

[0026] The present application provides another technical solution: a preparation method of the transparent ABS resin composition described above, which comprises:

[0027] The methyl methacrylate-butadiene-styrene copolymer in powder form is mixed with the nano platinum gold solution, which comprises nano platinum gold and a solvent for dispersing the nano platinum gold, to form an intermediate in which the nano platinum gold is attached to the methyl methacrylate-butadiene-styrene copolymer in powder form; the intermediate is mixed with other raw materials except for the acrylonitrile-butadiene-styrene copolymer and dried; then the acrylonitrile-butadiene-styrene copolymer is added, mixed, and melt-extruded at 190-220℃.

[0028] In some embodiments of the present application, the solvent is water. In some embodiments of the present application, the melt-extrusion is carried out by using a twin-screw extruder at a screw rotation speed of 200-300r / min.

[0029] The present application provides another technical solution: the use of the transparent ABS resin composition described above in the preparation of an antibacterial transparent product.

[0030] According to some preferred and specific aspects of the present application, the antibacterial transparent product is a transparent water tank.

[0031] Thanks to the above technical solution, the present application has the following advantages compared with the prior art:

[0032] The inventors of the present application have made intensive research on the problems existing in the actual use of the prior ABS resin, such as insufficient antibacterial and antiviral ability, and negative impact on transparency after adding additives, and after a large number of experimental researches, it is unexpectedly found that the use of nano platinum gold as an antibacterial and antiviral additive, together with methyl methacrylate-butadiene-styrene copolymer, pentaerythritol, and diphenyl dimethoxysilane as a mixed modifier, and the preparation of an intermediate by mixing methyl methacrylate-butadiene-styrene copolymer with nano platinum gold first and then mixing it with other raw materials for extrusion, not only makes the ABS resin composition of the present application have excellent antibacterial and antiviral ability, especially the ability to maintain for a long time and have good long-acting property, but also achieves unexpectedly and surprisingly high transparency.

[0033] Based on the finding, the inventors believe, through further research and analysis, that the strong and long-acting antibacterial and antiviral ability is due to the fact that, after the nano platinum gold is attached to the powder particulate methyl methacrylate-butadiene-styrene copolymer in solid form, it can be distributed in the entire material system with excellent dispersibility, and when it is melted and extruded again, the nano platinum gold is fully embedded in the resin surface layer and is not prone to agglomeration, migration and precipitation, and can continue to maintain its nano effect in the system. At the same time, the inventors also add pentaerythritol and diphenyl dimethoxysilane, and the hydroxyl and methoxyl groups in the system are expected to be activated by the nano platinum gold, so that these functional groups have the effect of destroying the outer membrane structure of microorganisms and blocking the synthesis of nucleic acid sequences, and synergize with the antibacterial and antiviral ability of the nano platinum gold itself, so that the ABS resin composition of the present application has excellent and long-acting antibacterial and antiviral ability. In addition, although the nano platinum gold itself is translucent, the system of the present application has good compatibility, good and uniform particle dispersibility, small pores in the system, and basically no bubbles exist, reducing light refraction, and the formulation system can reduce selective absorption of visible light after combination, thereby improving transparency. It can be seen that, by adjusting the formulation system and process, the present application solves the problem of trade-off between improving antibacterial ability and reducing transparency in the prior art, and the overall process is simple and easy to implement. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 Picture of a sample piece of the transparent ABS resin composition of Example 1 of the present application. DETAILED DESCRIPTION

[0035] The above scheme will be further described in combination with specific examples; it should be understood that these examples are used to illustrate the basic principles, main features and advantages of the present application, and the present application is not limited in scope by the following examples; the implementation conditions used in the examples can be further adjusted according to specific requirements, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0036] In the following examples, all raw materials are obtained from commercial sources or prepared by conventional methods in the art, unless otherwise specified.

[0037] In the following, the melt index of acrylonitrile-butadiene-styrene copolymer is 21 g / 10 min, and it is purchased from Toray 920 in Japan; the melt index of methyl methacrylate-butadiene-styrene copolymer is 24.6 g / 10 min, and it is purchased from Japanese Zhongyuan M722, and its particle size is about 6.5 μm.

[0038] The nano platinum gold solution used in the following examples is prepared by the following method: potassium chloroplatinate (1 g), sodium borohydride (12 g), polyvinylpyrrolidone (25 g, purchased from Shanghai Aldrin, K29-32), citric acid (30 g), lactic acid (15 g) are added to deionized water (1 L), and the mixture is stirred at 60°C for 2.5 hours to generate nano platinum gold precursor particles. Nitrogen is continuously added as an inert protective gas during the reaction. Then the solution after heating is purified by column chromatography to remove reaction impurities. The purified nano platinum gold precursor particles are dispersed in an appropriate amount of deionized water, and then placed in an ultrasonic bath for 30 minutes at a frequency of 30 kHz. Then, the solution is irradiated with ultraviolet light of wavelength 300 nm for 10 minutes to prepare a nano platinum gold solution. The average particle size of the nano platinum gold prepared by this method is about 5 nm, and the mass percentage of nano platinum gold is about 0.02%.

[0039] Example 1

[0040] The present example provides a transparent ABS resin composition and a method for preparing the same. The raw materials of the transparent ABS resin composition, by mass percentage, include: acrylonitrile-butadiene-styrene copolymer 99.33%, methyl methacrylate-butadiene-styrene copolymer 0.06%, pentaerythritol 0.06%, diphenyl dimethoxy silane 0.5%, and nano platinum gold 0.05%.

[0041] The method for preparing the transparent ABS resin composition includes: uniformly mixing the powder particulate methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold solution (the added mass of the nano platinum gold solution is 2.5 times the total mass of the transparent ABS resin composition), drying, and forming an intermediate in which the nano platinum gold is attached to the powder particulate methyl methacrylate-butadiene-styrene copolymer; uniformly mixing the intermediate with the other raw materials except for the acrylonitrile-butadiene-styrene copolymer and drying at 60°C; then adding the acrylonitrile-butadiene-styrene copolymer, uniformly mixing, and melt extruding using a twin-screw extruder to obtain the transparent ABS resin composition. The screw rotation speed of the twin-screw extruder is 220 r / min, and the working temperature of the twin-screw extruder is: Zone 1: 200°C; Zone 2: 205°C; Zone 3: 210°C; Zone 4: 215°C; Zone 5: 215°C; Zone 6: 215°C; die: 205°C.

[0042] Example 2

[0043] The present example provides a transparent ABS resin composition and a method for preparing the same. The raw materials of the transparent ABS resin composition include, in mass percentage: 99.42% of acrylonitrile-butadiene-styrene copolymer, 0.04% of methyl methacrylate-butadiene-styrene copolymer, 0.08% of pentaerythritol, 0.4% of diphenyl dimethoxy silane, and 0.06% of nano platinum gold.

[0044] The method for preparing the transparent ABS resin composition includes: mixing the powder granular methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold solution (the added mass of the nano platinum gold solution is 3 times the total mass of the transparent ABS resin composition) uniformly, drying, and forming an intermediate in which the nano platinum gold is attached to the powder granular methyl methacrylate-butadiene-styrene copolymer; mixing the intermediate and the other raw materials except for the acrylonitrile-butadiene-styrene copolymer uniformly and drying at 60°C; then adding the acrylonitrile-butadiene-styrene copolymer, mixing uniformly, and melt-extruding using a twin-screw extruder to obtain the transparent ABS resin composition, wherein the screw rotation speed of the twin-screw extruder is 220 r / min, and the working temperature of the twin-screw extruder is: Zone 1: 200°C; Zone 2: 205°C; Zone 3: 210°C; Zone 4: 215°C; Zone 5: 215°C; Zone 6: 215°C; and die: 205°C.

[0045] Example 3

[0046] The present example provides a transparent ABS resin composition and a method for preparing the same. The raw materials of the transparent ABS resin composition include, in mass percentage: 99.42% of acrylonitrile-butadiene-styrene copolymer, 0.04% of methyl methacrylate-butadiene-styrene copolymer, 0.08% of pentaerythritol, 0.4% of diphenyl dimethoxy silane, and 0.06% of nano platinum gold.

[0047] The method for preparing the transparent ABS resin composition includes: mixing the powder granular methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold solution (the added mass of the nano platinum gold solution is 3 times the total mass of the transparent ABS resin composition) uniformly, drying, and forming an intermediate in which the nano platinum gold is attached to the powder granular methyl methacrylate-butadiene-styrene copolymer; mixing the intermediate and the other raw materials except for the acrylonitrile-butadiene-styrene copolymer uniformly and drying at 60°C; then adding the acrylonitrile-butadiene-styrene copolymer, mixing uniformly, and melt-extruding using a twin-screw extruder to obtain the transparent ABS resin composition, wherein the screw rotation speed of the twin-screw extruder is 220 r / min, and the working temperature of the twin-screw extruder is: Zone 1: 200°C; Zone 2: 205°C; Zone 3: 210°C; Zone 4: 215°C; Zone 5: 215°C; Zone 6: 215°C; and die: 205°C.

[0048] Example 4

[0049] The present example provides a transparent ABS resin composition and a method of preparing the same. The raw materials of the transparent ABS resin composition, in terms of mass percentage, include: acrylonitrile-butadiene-styrene copolymer 98.95%, methyl methacrylate-butadiene-styrene copolymer 0.08%, pentaerythritol 0.1%, diphenyl dimethoxy silane 0.8%, and nano platinum gold 0.07%.

[0050] The method of preparing the transparent ABS resin composition includes: mixing the powder granular methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold solution (the added mass of the nano platinum gold solution is 3.5 times the total mass of the transparent ABS resin composition) uniformly, drying, to form an intermediate in which the nano platinum gold is attached to the powder granular methyl methacrylate-butadiene-styrene copolymer; mixing the intermediate with the other raw materials except for the acrylonitrile-butadiene-styrene copolymer and drying at 60°C; then adding the acrylonitrile-butadiene-styrene copolymer, mixing uniformly, and melt-extruding using a twin-screw extruder, to obtain the transparent ABS resin composition, the screw rotation speed of the twin-screw extruder being 220 r / min, and the working temperature of the twin-screw extruder being: Zone 1: 200°C; Zone 2: 205°C; Zone 3: 210°C; Zone 4: 215°C; Zone 5: 215°C; Zone 6: 215°C; die: 205°C.

[0051] Example 5

[0052] The present example provides a transparent ABS resin composition and a method of preparing the same. The raw materials of the transparent ABS resin composition, in terms of mass percentage, include: acrylonitrile-butadiene-styrene copolymer 98.95%, methyl methacrylate-butadiene-styrene copolymer 0.08%, pentaerythritol 0.1%, diphenyl dimethoxy silane 0.8%, and nano platinum gold 0.07%.

[0053] The method for preparing the transparent ABS resin composition comprises: mixing the powder granular methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold solution (the added mass of the nano platinum gold solution is 3 times the total mass of the transparent ABS resin composition) uniformly, drying, forming an intermediate in which the nano platinum gold is attached to the powder granular methyl methacrylate-butadiene-styrene copolymer; mixing the intermediate with other raw materials except for the acrylonitrile-butadiene-styrene copolymer and drying at 60°C; then adding the acrylonitrile-butadiene-styrene copolymer, mixing uniformly, and melt-extruding by using a twin-screw extruder, to obtain the transparent ABS resin composition, wherein the screw rotation speed of the twin-screw extruder is 220 r / min, and the working temperature of the twin-screw extruder is: Zone 1: 200°C; Zone 2: 205°C; Zone 3: 210°C; Zone 4: 215°C; Zone 5: 215°C; Zone 6: 215°C; and die: 205°C.

[0054] Comparative Example 1

[0055] The same as Example 1, except that the pentaerythritol is replaced by the same mass of dipentaerythritol.

[0056] Comparative Example 2

[0057] The same as Example 1, except that the pentaerythritol is replaced by the same mass of stearic acid amide.

[0058] Comparative Example 3

[0059] The same as Example 1, except that the pentaerythritol is replaced by the same mass of talc.

[0060] Comparative Example 4

[0061] The same as Example 1, except that the methyl methacrylate-butadiene-styrene copolymer is replaced by the same mass of polyethylene wax.

[0062] Comparative Example 5

[0063] The same as Example 1, except that the methyl methacrylate-butadiene-styrene copolymer is replaced by the same mass of calcium stearate.

[0064] Comparative Example 6

[0065] The same as Example 1, except that all the raw materials are mixed uniformly at the same time in the preparation process and then melt-extruded.

[0066] Comparative Example 7

[0067] The basic difference from Example 1 is only that the acrylonitrile-butadiene-styrene copolymer is adjusted to 97.39%, and the pentaerythritol is adjusted to 2%, and the adjusted formulation system is that the raw materials of the transparent ABS resin composition contain, by mass percentage: acrylonitrile-butadiene-styrene copolymer 97.39%, methyl methacrylate-butadiene-styrene copolymer 0.06%, pentaerythritol 2%, diphenyl dimethoxysilane 0.5%, and nano platinum gold 0.05%.

[0068] Performance test

[0069] (1) Anti-virus test, the experimental process is as follows:

[0070] 1. Experimental preparation: sterilize all test instruments used in this test to prevent test contamination;

[0071] 2. Preparation of test samples: prepare the samples to be tested and the blank control samples into several pieces of square with a size of (50±2) mm x (50±2) mm and a thickness of not more than 10 mm; Note: the blank control group is a sample of the same material without any antibacterial, antiviral, antifungal, and antiseptic agents;

[0072] 3. Preparation of test virus: place the host cells stored at low temperature in a water bath at 37°C, quickly thaw, and transfer the thawed host cells to a new flask, and culture the cells with 20 mL of culture medium. Incubate the flask in a carbon dioxide incubator at 37°C for 24±2 hours. Then, observe the cells under a microscope to observe whether the cells are attached to the bottom of the flask. If cells are observed, proceed to the next step of the test. If not, continue to place the flask in the incubator;

[0073] Remove the culture medium from the flask of host cells and add 20 mL of new culture medium to the flask. Incubate the flask in a carbon dioxide incubator at 37°C for 48±2 hours. Observe under a microscope to confirm whether the cells are cultured as a confluent monolayer of cells on the bottom of the flask. Then, remove the culture medium from the flask, wash the cell monolayer twice with 5 mL of PBS solution (phosphate buffer solution). After removing the PBS solution, add 0.5 mL of trypsin-EDTA solution to the flask and spread it over the entire flask surface. Incubate the flask in a carbon dioxide incubator at 37°C for 10-20 min. Then, observe whether the cells on the flask surface begin to detach, gently tap the side of the flask and disperse the cells. Add 5 mL of culture medium to the flask and gently remove the cell suspension with a pipette to avoid damaging the cells. Transfer 1 mL of the cell suspension to a new flask and add 20 mL of culture medium for cell culture. Incubate the flask in a carbon dioxide incubator at 37°C for 3-5 days until the cell monolayer is confirmed to be confluent;

[0074] The flask was removed from the incubator and inoculated with influenza virus. The flask was incubated in a carbon dioxide incubator at 34°C for 1 hour to allow the virus to adsorb to the cells. The flask was again inoculated with 20 mL of culture medium and 30 μL of trypsin and PBS solution. The flask was incubated in a carbon dioxide incubator at 34°C for 1 to 3 days until approximately 80% of the monolayer showed virus-induced cytopathic effect under a microscope. The contents of the flask were transferred to a centrifuge tube. The tube was centrifuged at 4°C for 15 min to separate the cell debris. After centrifugation, the supernatant, i.e., the influenza virus suspension, was removed from the centrifuge tube. The suspension was appropriately divided into new test tubes and stored in a freezer at -80°C; when used, the frozen influenza virus suspension was placed in a water bath at 37°C and quickly thawed. The concentration of the virus suspension was adjusted to 1 x 10 8 PFU / mL to 5 x 10 8 PFU / mL. Then, the adjusted virus suspension was diluted with purified water to obtain a 10-fold diluted virus suspension, which was the test inoculum;

[0075] 4. Test experiment: 0.4 mL of the virus suspension was dropped onto each of the samples to be tested, and a sterile membrane was overlaid on each of the samples to be tested, which was laid flat and bubble-free to allow the bacteria to uniformly contact the sample, and was placed in a sterilized flat dish and incubated at 25 ± 1°C and a relative humidity RH > 90% for 24 h; the sample incubated for 24 h was removed, and 10 mL of eluent was added to each of the samples to be tested and the overlaid membrane, which was repeatedly eluted, and after sufficient elution, the eluate was inoculated into culture medium, which was incubated at a suitable temperature of 37 ± 1°C for 72 h, and the Reed-Muench method was used to determine and calculate the logarithmic value of the virus infection of the cells, and further calculate the antiviral activity value, and the specific results are shown below:

[0076] The virus and host cells were: influenza A H1N1 and MDCK cells;

[0077] The blank control group: the logarithmic value of virus infection, 0 h: 5.48, 24 h: 5.38

[0078] Example 1: the logarithmic value of virus infection, 0 h: 5.48, 24 h: 1.06, the antibacterial activity value 4.32, the antiviral rate is greater than 99.99%;

[0079] Example 2: the logarithmic value of virus infection, 0 h: 5.48, 24 h: 1.02, the antibacterial activity value 4.36, the antiviral rate is greater than 99.99%;

[0080] Example 3: the logarithmic value of virus infection, 0 h: 5.48, 24 h: 1.13, the antibacterial activity value 4.25, the antiviral rate is greater than 99.99%;

[0081] Example 4: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 0.98, antibacterial activity value 4.40, antiviral rate greater than 99.99%;

[0082] Example 5: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 1.00, antibacterial activity value 4.38, antiviral rate greater than 99.99%;

[0083] Comparative Example 1: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 2.98, antibacterial activity value 2.40, antiviral rate 99.60%;

[0084] Comparative Example 2: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 4.17, antibacterial activity value 1.21, antiviral rate 93.83%;

[0085] Comparative Example 3: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 5.17, antibacterial activity value 0.21, antiviral rate 38.34%;

[0086] Comparative Example 4: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 4.00, antibacterial activity value 1.38, antiviral rate 95.83%;

[0087] Comparative Example 5: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 4.05, antibacterial activity value 1.33, antiviral rate 95.32%;

[0088] Comparative Example 6: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 4.33, antibacterial activity value 1.05, antiviral rate 91.08%;

[0089] Comparative Example 7: Virus infection logarithm value, 0 hour: 5.48, 24 hours: 2.68, antibacterial activity value 2.70, antiviral rate 99.80%;

[0090] Antiviral activity value = virus infection logarithm value of blank control group at 24 hours - virus infection logarithm value of test group (i.e. the embodiment of the present application) at 24 hours;

[0091] Antiviral rate = 【1-1 / (10^antiviral activity value)】x 100% Note: In 10^antiviral activity value, the antiviral activity value is the power of 10, for example, the antiviral activity value is 4, which means 10 to the power of 4.

[0092] The materials prepared in the above Examples 1-5 and Comparative Examples 1-7 were placed for half a year, and the above antiviral test was performed again, and the specific results are shown as follows:

[0093] The virus and host cells are: influenza A H1N1 and MDCK cells;

[0094] Blank control: Virus infection log value, 0 hour: 5.50, 24 hours: 5.45;

[0095] Example 1: Virus infection log value, 0 hour: 5.50, 24 hours: 1.20, antibacterial activity value 4.25, antiviral rate greater than 99.99%;

[0096] Example 2: Virus infection log value, 0 hour: 5.50, 24 hours: 1.12, antibacterial activity value 4.33, antiviral rate greater than 99.99%;

[0097] Example 3: Virus infection log value, 0 hour: 5.50, 24 hours: 1.30, antibacterial activity value 4.15, antiviral rate greater than 99.99%;

[0098] Example 4: Virus infection log value, 0 hour: 5.50, 24 hours: 1.06, antibacterial activity value 4.39, antiviral rate greater than 99.99%;

[0099] Example 5: Virus infection log value, 0 hour: 5.50, 24 hours: 1.10, antibacterial activity value 4.35, antiviral rate greater than 99.99%;

[0100] Comparative Example 1: Virus infection log value, 0 hour: 5.50, 24 hours: 3.75, antibacterial activity value 1.70, antiviral rate 98%;

[0101] Comparative Example 2: Virus infection log value, 0 hour: 5.50, 24 hours: 4.55, antibacterial activity value 0.9, antiviral rate 87.41%;

[0102] Comparative Example 3: Virus infection log value, 0 hour: 5.50, 24 hours: 5.25, antibacterial activity value 0.20, antiviral rate 36.90%;

[0103] Comparative Example 4: Virus infection log value, 0 hour: 5.50, 24 hours: 4.50, antibacterial activity value 0.95, antiviral rate 88.78%;

[0104] Comparative Example 5: Virus infection log value, 0 hour: 5.50, 24 hours: 4.53, antibacterial activity value 0.92, antiviral rate 88%;

[0105] Comparative Example 6: Virus infection log value, 0 hour: 5.50, 24 hours: 4.40, antibacterial activity value 1.05, antiviral rate 91.09%;

[0106] Comparative Example 7: Virus infection logarithmic value, 0 hour: 5.50, 24 hours: 3.00, antibacterial activity value 2.45, antiviral rate 99.65%;

[0107] From the above, the formula system and the corresponding preparation process of the application play a key role in the antibacterial and antiviral ability of the product, especially the persistent antibacterial and antiviral ability.

[0108] (2) Other performance tests

[0109] The materials prepared in the above Examples 1-5 and Comparative Examples 1-7 were tested for transparency, impact strength, and tensile strength, and the specific results are shown as follows:

[0110] Pure ABS resin: transparency 88%, impact strength 9kJ / m 2 , tensile strength 48MPa;

[0111] Example 1: transparency 86%, impact strength 11kJ / m 2 , tensile strength 49MPa;

[0112] Example 2: transparency 85%, impact strength 11kJ / m 2 , tensile strength 47MPa;

[0113] Example 3: transparency 86%, impact strength 10kJ / m 2 , tensile strength 48MPa;

[0114] Example 4: transparency 85%, impact strength 10kJ / m 2 , tensile strength 48MPa;

[0115] Example 5: transparency 85%, impact strength 11kJ / m 2 , tensile strength 48MPa;

[0116] Comparative Example 1: transparency 70%, impact strength 8kJ / m 2 , tensile strength 45MPa;

[0117] Comparative Example 2: transparency 62%, impact strength 8kJ / m 2 , tensile strength 46MPa;

[0118] Comparative Example 3: transparency 50%, impact strength 9kJ / m 2 , tensile strength 45MPa;

[0119] Comparative Example 4: transparency 35%, impact strength 8kJ / m 2 , tensile strength 45MPa;

[0120] Comparative Example 5: transparency 28%, impact strength 9 kJ / m 2 , tensile strength 46 MPa;

[0121] Comparative Example 6: transparency 80%, impact strength 10 kJ / m 2 , tensile strength 48 MPa;

[0122] Comparative Example 7: transparency 86%, impact strength 10 kJ / m 2 , tensile strength 49 MPa;

[0123] Test standards: transparency is determined by GB / T2410-2008; impact strength is determined by GB / T1843-2008; tensile strength is determined by GB / T1040-2018;

[0124] From the above, although the transparency of some comparative examples is good, the antibacterial and antiviral ability does not meet the requirements, and the antibacterial ability of some comparative examples is slightly high, but the transparency is seriously decreased, it is difficult to realize the performance of both sides, and there is a problem of losing one to gain the other.

[0125] (3) The material of Example 1 of the application is injection molded into a water tank (injection temperature: 220℃, injection pressure: 110 MPa), and the picture is as Figure 1 , it can be seen that the transparency of the material of the application is good, and the internal water level can be observed intuitively.

[0126] The above examples are only for illustrating the technical concept and characteristics of the application, the purpose is to enable persons skilled in the art to understand the content of the application and to implement it, and it cannot limit the protection scope of the application. Any equivalent changes or modifications made in accordance with the spirit and essence of the application should be covered within the protection scope of the application.

[0127] The endpoints of the ranges and any values in the ranges disclosed herein are not limited to the precise values recited. The ranges or values should be interpreted as being approximate, meaning that they can vary by a small amount. In the numeric value ranges, the endpoints of each range, the endpoints of each range and individual point values, and individual point values can be combined with each other to obtain one or more new numeric value ranges, which should be considered as being specifically disclosed herein.

Claims

1. Use of a transparent ABS resin composition in the production of an antibacterial type transparent article, characterized in that, The raw materials of the transparent ABS resin composition include, in mass percentage, 90-99.7% of acrylonitrile-butadiene-styrene copolymer, 0.01-1% of methyl methacrylate-butadiene-styrene copolymer, 0.03-0.85% of pentaerythritol, 0.2-8% of diphenyl dimethoxysilane, and 0.01-0.08% of nano platinum gold; The nano platinum gold is added in the form of a nano platinum gold solution, and the nano platinum gold solution includes the nano platinum gold, a solvent for dispersing the nano platinum gold, and the methyl methacrylate-butadiene-styrene copolymer in the form of powder particles with a particle size of less than 12 μm; The method for preparing the transparent ABS resin composition includes: Mixing the nano platinum gold solution and the powder particles of the methyl methacrylate-butadiene-styrene copolymer, drying, and forming an intermediate in which the nano platinum gold is attached to the powder particles of the methyl methacrylate-butadiene-styrene copolymer; Mixing the intermediate with other raw materials except for the acrylonitrile-butadiene-styrene copolymer and drying; Then adding the acrylonitrile-butadiene-styrene copolymer, mixing, and melt extruding.

2. Use of the transparent ABS resin composition according to claim 1 in the production of an antibacterial type transparent article, characterized in that, The raw materials of the transparent ABS resin composition include, in mass percentage, 95-99.7% of acrylonitrile-butadiene-styrene copolymer, 0.02-0.5% of methyl methacrylate-butadiene-styrene copolymer, 0.05-0.5% of pentaerythritol, 0.2-6% of diphenyl dimethoxysilane, and 0.01-0.08% of nano platinum gold.

3. Use of the transparent ABS resin composition according to claim 2 for producing an antibacterial type transparent article, characterized in that, The raw materials of the transparent ABS resin composition include, in mass percentage, 97-99.7% of acrylonitrile-butadiene-styrene copolymer, 0.02-0.3% of methyl methacrylate-butadiene-styrene copolymer, 0.05-0.2% of pentaerythritol, 0.2-3% of diphenyl dimethoxysilane, and 0.01-0.08% of nano platinum gold.

4. Use of the transparent ABS resin composition according to claim 3 for producing an antibacterial type transparent article, characterized in that, The raw materials of the transparent ABS resin composition include, in mass percentage, 99.1-99.7% of acrylonitrile-butadiene-styrene copolymer, 0.02-0.1% of methyl methacrylate-butadiene-styrene copolymer, 0.05-0.1% of pentaerythritol, 0.2-0.8% of diphenyl dimethoxysilane, and 0.01-0.08% of nano platinum gold.

5. Use of the transparent ABS resin composition according to claim 1 in the production of an antibacterial type transparent article, characterized in that, The raw materials of the transparent ABS resin composition include, in mass percentage, 99.1-99.7% of acrylonitrile-butadiene-styrene copolymer, 0.02-0.1% of methyl methacrylate-butadiene-styrene copolymer, 0.05-0.1% of pentaerythritol, 0.2-0.8% of diphenyl dimethoxysilane, and 0.01-0.08% of nano platinum gold. The raw materials of the transparent ABS resin composition include, in mass percentage, 99.1-99.7% of acrylonitrile-butadiene-styrene copolymer, 0.02-0.1% of methyl methacrylate-butadiene-styrene copolymer, 0.05-0.1% of pentaerythritol, 0.2-0.8% of diphenyl dimethoxysilane, and 0.01-0.08% of nano platinum gold.

6. Use of the transparent ABS resin composition according to claim 5 for producing an antibacterial type transparent article, characterized in that, The mass ratio of the acrylonitrile-butadiene-styrene copolymer, the methyl methacrylate-butadiene-styrene copolymer, the pentaerythritol, the diphenyl dimethoxysilane and the nano platinum gold is 1:0.0002-0.0012:0.0005-0.00085:0.002-0.0065:0.0001-0.0008.

7. Use of the transparent ABS resin composition according to claim 1 in the production of an antibacterial type transparent article, characterized in that, The melt index of the acrylonitrile-butadiene-styrene copolymer is 10-25 g / 10 min.

8. Use of the transparent ABS resin composition according to claim 7 for producing an antibacterial type transparent article, characterized in that, The melt index of the acrylonitrile-butadiene-styrene copolymer is 12-25 g / 10 min.

9. Use of the transparent ABS resin composition according to claim 8 for producing an antibacterial type transparent article, characterized in that, The melt index of the acrylonitrile-butadiene-styrene copolymer is 15-25 g / 10 min.

10. Use of the transparent ABS resin composition according to claim 1 for producing an antibacterial type transparent article, characterized in that, The melt index of the methyl methacrylate-butadiene-styrene copolymer is 17-27 g / 10 min.

11. Use of the transparent ABS resin composition according to claim 10 for the production of an antibacterial type transparent article, characterized in that, The melt index of the methyl methacrylate-butadiene-styrene copolymer is 20-27 g / 10 min.

12. Use of the transparent ABS resin composition according to claim 1 for producing an antibacterial type transparent article, characterized in that, The mass ratio of the methyl methacrylate-butadiene-styrene copolymer and the nano platinum gold is 1:0.2-1.2, and the mass ratio of the methyl methacrylate-butadiene-styrene copolymer, the pentaerythritol, the diphenyl dimethoxysilane is 1:1-2:8-12.

13. Use of the transparent ABS resin composition according to claim 1 for producing an antibacterial type transparent article, characterized in that, The particle size of the methyl methacrylate-butadiene-styrene copolymer is 4-10 μm.

14. Use of the transparent ABS resin composition according to claim 1 for producing an antibacterial type transparent article, characterized in that, The particle size of the nano platinum gold is 3-8 nm; the mass percentage of the nano platinum gold in the nano platinum gold solution is 0.001%-0.5% by mass percentage; and / or, The preparation method of the nano platinum gold solution comprises: under the protection of a protective gas, in the presence of polyvinylpyrrolidone, under heating conditions, potassium chloroplatinate, sodium borohydride, citric acid, lactic acid are reacted in water to generate nano platinum gold precursor particles, the nano platinum gold precursor particles are separated and dispersed with a solvent, ultrasonic oscillation is performed, and then the nano platinum gold solution is obtained by irradiation with ultraviolet light with a wavelength of 200-350 nm; wherein the mass ratio of the potassium chloroplatinate, the sodium borohydride, the citric acid, the lactic acid, the polyvinylpyrrolidone is 1:10-16:25-35:10-20:20-30, the heating conditions are such that the reaction is carried out at a temperature of 55-65 ℃, and the protective gas is a nitrogen atmosphere or a helium atmosphere.

15. Use of the transparent ABS resin composition according to claim 1 for producing an antibacterial type transparent article, characterized in that, The solvent is water; and / or, the melt extrusion is performed by using a double-screw extruder with a screw rotation speed of 200-300 r / min; and / or, the melt extrusion is performed at 190-220 ℃.

16. Use of the transparent ABS resin composition according to claim 1 for producing an antibacterial type transparent article, characterized in that, The antibacterial transparent product is made by injection molding using the transparent ABS resin composition.

17. An antibacterial type transparent article, characterized by, The antibacterial transparent product is made by injection molding using the transparent ABS resin composition for use according to any one of claims 1-16.

18. The antimicrobial transparent article according to claim 17, wherein, The antibacterial transparent product is a transparent water tank.

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