CN116874928A - High-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate and preparation method thereof - Google Patents
High-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate and preparation method thereof Download PDFInfo
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- CN116874928A CN116874928A CN202310936338.7A CN202310936338A CN116874928A CN 116874928 A CN116874928 A CN 116874928A CN 202310936338 A CN202310936338 A CN 202310936338A CN 116874928 A CN116874928 A CN 116874928A
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 52
- 239000004033 plastic Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 88
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000008367 deionised water Substances 0.000 claims abstract description 27
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 27
- 239000002216 antistatic agent Substances 0.000 claims abstract description 26
- 229920002678 cellulose Polymers 0.000 claims abstract description 25
- 239000001913 cellulose Substances 0.000 claims abstract description 25
- 238000007747 plating Methods 0.000 claims abstract description 25
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- 229920001577 copolymer Polymers 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 18
- 229920001155 polypropylene Polymers 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 229920001661 Chitosan Polymers 0.000 claims abstract description 14
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000008116 calcium stearate Substances 0.000 claims abstract description 11
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000004512 die casting Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000003999 initiator Substances 0.000 claims abstract description 5
- 239000004094 surface-active agent Substances 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 40
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 26
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 21
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 20
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 20
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 18
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 16
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical group [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 15
- 235000019441 ethanol Nutrition 0.000 claims description 14
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 14
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 13
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 12
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 10
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 10
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 9
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 8
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 8
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical group CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 8
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 8
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 8
- 239000012279 sodium borohydride Substances 0.000 claims description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical group N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 7
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 7
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 7
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 7
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 7
- 238000010025 steaming Methods 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- YMFBFFPJRABBPE-BTVCFUMJSA-N ethanol;(2r,3s,4r,5r)-2,3,4,5,6-pentahydroxyhexanal Chemical compound CCO.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O YMFBFFPJRABBPE-BTVCFUMJSA-N 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000004332 silver Substances 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000006750 UV protection Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000004224 protection Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001782 photodegradation Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000191070 Escherichia coli ATCC 8739 Species 0.000 description 1
- 229920002201 Oxidized cellulose Polymers 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000006196 deacetylation Effects 0.000 description 1
- 238000003381 deacetylation reaction Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229940107304 oxidized cellulose Drugs 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of hollow plastic plates, and discloses a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate and a preparation method thereof; the method comprises the following steps: preparing oxidized nanocellulose by a 2, 6-tetramethylpiperidine oxide oxidation method; silver plating is carried out on the oxidized nano cellulose to obtain nano silver cellulose; uniformly stirring oxidized nanocellulose, chitosan solution and nanosilver cellulose to obtain an antibacterial antistatic agent; adding a surfactant and an emulsifier into deionized water, adding butyl methacrylate, acrylic acid, silsesquioxane and an initiator, and heating for reaction to obtain a silicon-containing acrylate copolymer; uniformly mixing the modified nano titanium dioxide and the silicon-containing acrylic ester copolymer, and heating for reaction to obtain an ultraviolet resistant agent; and heating and melting polypropylene, adding an antibacterial antistatic agent, an ultraviolet resistant agent, an antioxidant and calcium stearate, uniformly stirring, extruding, introducing into a die, and performing die casting and cooling to obtain the hollow plastic plate.
Description
Technical Field
The invention relates to the technical field of hollow plastic plates, in particular to a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate and a preparation method thereof.
Background
Plastic hollow boards, also known as plastic corrugated boards, are products formed by extrusion of co-polypropylene plastic and cooling. The hollow plate has the characteristics of flat and smooth surface, portability, impact resistance, water resistance, oil resistance, innocuity and innocuity, and can be obtained by adding pigment. The product can be repeatedly used and regenerated, and meets the requirements of safety and environmental protection. At present, the novel plastic board is mainly applied to the fields of advertisement signboards, recycling boxes, industrial boards, protection boards, electronic industry protection and the like. However, polypropylene lacks good toughness, although it has a certain stiffness and strength. When impacted, PP plastic hollow plates are prone to brittle fracture, which limits their range of use to a large extent.
When the plastic hollow plate is used, the plastic hollow plate is inevitably irradiated by sunlight. The sunlight contains intense ultraviolet rays which can accelerate photodegradation of the plastic hollow plate polymer, so that the material is aged prematurely, and the service life is reduced. In order to prevent the damage of ultraviolet rays to the plastic hollow plate, organic or inorganic ultraviolet absorbers are generally added into the material to realize ultraviolet shielding. However, the organic ultraviolet absorbers currently used are susceptible to problems of photodegradation, migration and accumulation, while the wide forbidden band of inorganic ultraviolet absorbers is fixed and cannot fully absorb ultraviolet rays.
In addition, plastic hollow plates are easy to generate electrostatic fields on the surfaces due to the high resistivity. When inflammable and explosive articles exist in the surrounding environment, serious accidents such as fire and explosion easily occur, and serious economic loss is brought to people.
Therefore, the invention has important significance in the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate
Disclosure of Invention
The invention aims to provide a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps:
s1: dissolving sodium carbonate and sodium bicarbonate in water, adding oxidant and catalyst, stirring, adding cellulose, stirring, adding sodium hypochlorite to turn yellow, adjusting pH to 10-11, reacting at 30-35deg.C for 4-5 hr, washing,
drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1-0.2mol/L, stirring for 5-10min, then placing into sodium borohydride solution with the concentration of 0.2-0.3mol/L, stirring for 10-15min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting for 20-25min at the temperature of 30-50 ℃ to obtain the nanocellulose; dispersing oxidized nano cellulose in deionized water, adding chitosan solution and nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: adding a surfactant and an emulsifier into deionized water, uniformly stirring, adding butyl methacrylate, acrylic acid, silsesquioxane and an initiator, and reacting at 65-70 ℃ for 6-7h to obtain a silicon-containing acrylate copolymer; uniformly mixing the modified nano titanium dioxide and the silicon-containing acrylic ester copolymer, and reacting for 18-24 hours at the temperature of 35-40 ℃ to obtain an ultraviolet resistant agent;
s4: and heating and melting polypropylene, adding an antibacterial antistatic agent, an ultraviolet resistant agent, an antioxidant and calcium stearate, uniformly stirring, extruding, introducing into a die, and performing die casting and cooling to obtain the hollow plastic plate.
Further, the oxidant is 2, 6-tetramethyl piperidine oxide, and the catalyst is sodium bromide; cellulose: sodium carbonate: the mass ratio of the sodium bicarbonate is 1 (0.75-0.8) to 0.25-0.3.
Further, the plating solution A is a glucose ethanol water solution with the concentration of 9-10 g/L;
further, the plating solution B is prepared according to the following method: dissolving silver nitrate in water, adding ammonia water until the precipitate disappears, adding sodium hydroxide, and adding ammonia water again until the precipitate disappears to obtain plating solution B.
Further, in the antibacterial antistatic agent, the chitosan solution: oxidizing nanocellulose: the mass ratio of the nano silver cellulose is 3:1 (1-2).
Further, the modified nano titanium dioxide is prepared according to the following method: dispersing nano titanium dioxide in absolute ethyl alcohol by ultrasonic, adding gamma-aminopropyl triethoxysilane ethanol solution, stirring uniformly, reacting for 3-4h at 85-90 ℃,
centrifuging, filtering and drying to obtain the modified nano titanium dioxide.
Further, in the ethanol solution of the gamma-aminopropyl triethoxysilane, the gamma-aminopropyl triethoxysilane: ethanol: the mass ratio of the deionized water is (2.5-3) 8:1; nano titanium dioxide: the mass ratio of the gamma-aminopropyl triethoxysilane ethanol solution is (5-10) to (1-2).
Further, the silsesquioxane is prepared as follows: stirring potassium carbonate, deionized water and tetrahydrofuran uniformly, adding gamma-methacryloxypropyl trimethoxy silane, stirring for 96-108h under nitrogen atmosphere, standing,
steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12-24 hr, filtering, and evaporating at 40-45deg.C for 2-3 hr to obtain silsesquioxane.
Further, the gamma-methacryloxypropyl trimethoxysilane: deionized water: the mass ratio of the tetrahydrofuran is (4-5) 1 (1.5-2).
Further, the surfactant is tween 20; the emulsifier is span 80; the initiator is azodiisobutyronitrile; silsesquioxane: butyl methacrylate: the mass ratio of the acrylic acid is 1 (80-90) to 10-20; modified nano titanium dioxide: the mass ratio of the silicon-containing acrylic ester copolymer is (1-5) (95-99).
Further, the components are 80-100 parts of polypropylene, 20-30 parts of antibacterial antistatic agent, 15-20 parts of ultraviolet resistant agent, 10-20 parts of antioxidant and 2-5 parts of calcium stearate by weight; the antioxidant is one or both of antioxidant 1010 and antioxidant 168.
Further, the chitosan solution concentration is 2wt%, and the solvent is acetic acid solution with concentration of 4 wt%.
Compared with the prior art, the invention has the following beneficial effects:
the invention prepares oxidized nanocellulose by a 2, 6-tetramethyl piperidine oxide oxidation method, deposits a continuous and uniform silver layer on the surface of the oxidized nanocellulose by placing the oxidized nanocellulose in silver nitrate solution, and prepares the antibacterial antistatic agent by blending the oxidized nanocellulose with chitosan; the polypropylene matrix has the functions of antibiosis, antistatic, toughening and reinforcement.
The invention prepares silsesquioxane by hydrolyzing and condensing a silane coupling agent gamma-methacryloxypropyl trimethoxy silane, then reacts with gamma-aminopropyl triethoxysilane modified nano titanium dioxide, loads the modified nano titanium dioxide on the surface of a silsesquioxane acrylic ester copolymer, and prepares an ultraviolet resistance agent with a stepped structure molecule, and the ultraviolet resistance of a hollow plastic plate is greatly improved by loading the modified nano silicon dioxide on the surface; the ladder-shaped structure molecules are combined with silver-plated nano cellulose and oxidized nano cellulose in the antibacterial antistatic agent to form a certain micro cavity structure, and light is captured after the optical fiber irradiates and is immersed in the cavity, so that the ultraviolet resistance is further improved; the formed cavity structure and silver-plated nano-cellulose and oxidized cellulose are mutually inserted to form a layered structure of cellulose-silsesquioxane-cellulose, so that on one hand, the capability of capturing and consuming electromagnetic waves and the like of the hollow plastic plate can be enhanced, the antistatic aim is achieved, on the other hand, the formed network structure is filled in the polypropylene matrix, the effects of reinforcing, toughening and supporting are achieved, and the mechanical property of the hollow plastic plate is further improved; meanwhile, due to a large number of active functional groups such as siloxane in the ultraviolet resistant agent, the dispersion performance of the antibacterial antistatic agent in the polypropylene matrix can be further improved in the process of forming a network structure, and the antibacterial antistatic agent is promoted to form a uniformly dispersed network structure in the polypropylene aggregate.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following examples, cellulose CAS:9004-34-6, supplied by Shanghai Meilin Biochemical technology Co., ltd, has a particle size of 25 μm; the nano titanium dioxide is provided by national medicine group chemical reagent company, and the particle size is 50nm; the deacetylation degree of chitosan is 90%, and the molecular weight is 180000;2, 6-tetramethylpiperidine oxide CAS:2564-83-2; gamma-aminopropyl triethoxysilane CAS:919-30-2; gamma-methacryloxypropyl trimethoxysilane CAS2530-85-0, tween 20CAS:9005-64-5; span 80CAS:1338-43-8; butyl methacrylate CAS:97-88-1; acrylic CAS:79-10-7; the other raw materials are all sold in trial market.
Plating solution B was prepared as follows: dissolving silver nitrate in water to obtain 0.15mol/L silver nitrate solution, slowly dropwise adding ammonia water until precipitation disappears, adding sodium hydroxide until secondary precipitation occurs, and dropwise adding ammonia water again until precipitation disappears to obtain plating solution B.
Example 1: a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps: s1: dissolving 7g of sodium carbonate and 3g of sodium bicarbonate in water, adding 0.2g of 2, 6-tetramethylpiperidine oxide and 2g of sodium bromide, uniformly stirring, adding 10g of cellulose, uniformly stirring, adding sodium hypochlorite until the solution turns yellow, adjusting the pH value to 10.5, reacting for 4 hours at 30 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1mol/L, stirring for 5min, then placing into sodium borohydride solution with the concentration of 0.2mol/L, stirring for 10min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting at 30 ℃ for 20min to obtain the nanocellulose; dispersing 10g of oxidized nano cellulose in deionized water, adding 30g of chitosan solution and 10g of nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: dispersing 5g of nano titanium dioxide in 300mL of absolute ethyl alcohol by ultrasonic, adding 1g of gamma-aminopropyl triethoxysilane ethanol solution, uniformly stirring, reacting for 3h at 85 ℃, centrifuging, filtering and drying to obtain modified nano titanium dioxide;
uniformly stirring 0.08g of potassium carbonate, 10g of deionized water and 15g of tetrahydrofuran, adding 40g of gamma-methacryloxypropyl trimethoxysilane, stirring for 96 hours under a nitrogen atmosphere, standing, steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12 hours, filtering, and evaporating for 2 hours at 40 ℃ to obtain silsesquioxane;
adding 1.5g of Tween 20 and 0.2g of span 80 into 100g of deionized water, uniformly stirring, adding 80g of butyl methacrylate, 20g of acrylic acid, 1g of silsesquioxane and 0.1g of azodiisobutyronitrile, and reacting for 6 hours at 65 ℃ to obtain a silicon-containing acrylate copolymer; uniformly mixing 1g of modified nano titanium dioxide and 99g of silicon-containing acrylate copolymer, and reacting for 18 hours at 35 ℃ to obtain an ultraviolet resistant agent;
s4: 100g of polypropylene is heated and melted at 190 ℃, 20g of antibacterial antistatic agent, 15g of ultraviolet resistance agent, 5g of antioxidant 1010, 5g of antioxidant 168 and 2g of calcium stearate are added, and the mixture is stirred uniformly, extruded and introduced into a die, and the die casting and cooling are carried out to obtain the hollow plastic plate.
Example 2: a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps: s1: dissolving 7g of sodium carbonate and 3g of sodium bicarbonate in water, adding 0.2g of 2, 6-tetramethylpiperidine oxide and 2g of sodium bromide, uniformly stirring, adding 10g of cellulose, uniformly stirring, adding sodium hypochlorite until the solution turns yellow, adjusting the pH value to 10.5, reacting for 4 hours at 30 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1mol/L, stirring for 5min, then placing into sodium borohydride solution with the concentration of 0.2mol/L, stirring for 10min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting at 30 ℃ for 20min to obtain the nanocellulose; dispersing 10g of oxidized nano cellulose in deionized water, adding 30g of chitosan solution and 10g of nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: dispersing 8g of nano titanium dioxide in 300mL of absolute ethyl alcohol by ultrasonic, adding 1.5g of gamma-aminopropyl triethoxysilane ethanol solution, uniformly stirring, reacting for 3 hours at 85 ℃, centrifuging, filtering and drying to obtain modified nano titanium dioxide; uniformly stirring 0.08g of potassium carbonate, 10g of deionized water and 15g of tetrahydrofuran, adding 40g of gamma-methacryloxypropyl trimethoxysilane, stirring for 96 hours under a nitrogen atmosphere, standing, steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12 hours, filtering, and evaporating for 2 hours at 40 ℃ to obtain silsesquioxane; adding 1.5g of Tween 20 and 0.2g of span 80 into 100g of deionized water, uniformly stirring, adding 80g of butyl methacrylate, 20g of acrylic acid, 1g of silsesquioxane and 0.1g of azodiisobutyronitrile, and reacting for 6 hours at 65 ℃ to obtain a silicon-containing acrylate copolymer; uniformly mixing 3g of modified nano titanium dioxide and 97g of silicon-containing acrylate copolymer, and reacting for 18 hours at 35 ℃ to obtain an ultraviolet resistant agent;
s4: 100g of polypropylene is heated and melted at 190 ℃, 25g of antibacterial antistatic agent, 15g of ultraviolet resistance agent, 10g of antioxidant 1010, 10g of antioxidant 168 and 3g of calcium stearate are added, and the mixture is stirred uniformly, extruded and introduced into a die, and the die casting and cooling are carried out to obtain the hollow plastic plate.
Example 3: a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps: s1: dissolving 7g of sodium carbonate and 3g of sodium bicarbonate in water, adding 0.2g of 2, 6-tetramethylpiperidine oxide and 2g of sodium bromide, uniformly stirring, adding 10g of cellulose, uniformly stirring, adding sodium hypochlorite until the solution turns yellow, adjusting the pH value to 10.5, reacting for 4 hours at 30 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1mol/L, stirring for 5min, then placing into sodium borohydride solution with the concentration of 0.2mol/L, stirring for 10min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting at 30 ℃ for 20min to obtain the nanocellulose; dispersing 10g of oxidized nano cellulose in deionized water, adding 30g of chitosan solution and 10g of nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: dispersing 10g of nano titanium dioxide in 300mL of absolute ethyl alcohol by ultrasonic, adding 2g of gamma-aminopropyl triethoxysilane ethanol solution, uniformly stirring, reacting for 3h at 85 ℃, centrifuging, filtering and drying to obtain modified nano titanium dioxide; uniformly stirring 0.08g of potassium carbonate, 10g of deionized water and 15g of tetrahydrofuran, adding 40g of gamma-methacryloxypropyl trimethoxysilane, stirring for 96 hours under a nitrogen atmosphere, standing, steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12 hours, filtering, and evaporating for 2 hours at 40 ℃ to obtain silsesquioxane; adding 1.5g of Tween 20 and 0.2g of span 80 into 100g of deionized water, uniformly stirring, adding 80g of butyl methacrylate, 20g of acrylic acid, 1g of silsesquioxane and 0.1g of azodiisobutyronitrile, and reacting for 6 hours at 65 ℃ to obtain a silicon-containing acrylate copolymer; uniformly mixing 5g of modified nano titanium dioxide and 95g of silicon-containing acrylate copolymer, and reacting for 18 hours at 35 ℃ to obtain an ultraviolet resistant agent;
s4: 100g of polypropylene is heated and melted at 190 ℃, 30g of antibacterial antistatic agent, 20g of ultraviolet resistance agent, 10g of antioxidant 1010, 10g of antioxidant 168 and 5g of calcium stearate are added, and the mixture is stirred uniformly, extruded and introduced into a die, and the die casting and cooling are carried out to obtain the hollow plastic plate.
Comparative example 1: a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps: s1: dissolving 7g of sodium carbonate and 3g of sodium bicarbonate in water, adding 0.2g of 2, 6-tetramethylpiperidine oxide and 2g of sodium bromide, uniformly stirring, adding 10g of cellulose, uniformly stirring, adding sodium hypochlorite until the solution turns yellow, adjusting the pH value to 10.5, reacting for 4 hours at 30 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1mol/L, stirring for 5min, then placing into sodium borohydride solution with the concentration of 0.2mol/L, stirring for 10min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting at 30 ℃ for 20min to obtain the nanocellulose; dispersing 10g of oxidized nano cellulose in deionized water, adding 30g of chitosan solution and 10g of nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: dispersing 5g of nano titanium dioxide in 300mL of absolute ethyl alcohol by ultrasonic, adding 1g of gamma-aminopropyl triethoxysilane ethanol solution, uniformly stirring, reacting for 3 hours at 85 ℃, centrifuging, filtering and drying to obtain an ultraviolet resistant agent;
s4: 100g of polypropylene is heated and melted at 190 ℃, 20g of antibacterial antistatic agent, 15g of ultraviolet resistance agent, 5g of antioxidant 1010, 5g of antioxidant 168 and 2g of calcium stearate are added, and the mixture is stirred uniformly, extruded and introduced into a die, and the die casting and cooling are carried out to obtain the hollow plastic plate.
Comparative example 2: a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps: s1: dissolving 7g of sodium carbonate and 3g of sodium bicarbonate in water, adding 0.2g of 2, 6-tetramethylpiperidine oxide and 2g of sodium bromide, uniformly stirring, adding 10g of cellulose, uniformly stirring, adding sodium hypochlorite until the solution turns yellow, adjusting the pH value to 10.5, reacting for 4 hours at 30 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1mol/L, stirring for 5min, then placing into sodium borohydride solution with the concentration of 0.2mol/L, stirring for 10min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting at 30 ℃ for 20min to obtain the nanocellulose; dispersing 10g of oxidized nano cellulose in deionized water, adding 30g of chitosan solution and 10g of nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: dispersing 5g of nano titanium dioxide in 300mL of absolute ethyl alcohol by ultrasonic, adding 1g of gamma-aminopropyl triethoxysilane ethanol solution, uniformly stirring, reacting for 3h at 85 ℃, centrifuging, filtering and drying to obtain modified nano titanium dioxide; uniformly stirring 0.08g of potassium carbonate, 10g of deionized water and 15g of tetrahydrofuran, adding 40g of gamma-methacryloxypropyl trimethoxysilane, stirring for 96 hours under a nitrogen atmosphere, standing, steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12 hours, filtering, and evaporating for 2 hours at 40 ℃ to obtain silsesquioxane; adding 1.5g of Tween 20 and 0.2g of span 80 into 100g of deionized water, uniformly stirring, adding 80g of butyl methacrylate, 20g of acrylic acid, 1g of silsesquioxane and 0.1g of azodiisobutyronitrile, and reacting for 6 hours at 65 ℃ to obtain a silicon-containing acrylate copolymer; uniformly mixing 0.5g of modified nano titanium dioxide and 99g of silicon-containing acrylate copolymer, and reacting for 18 hours at 35 ℃ to obtain an ultraviolet resistant agent;
s4: 100g of polypropylene is heated and melted at 190 ℃, 20g of antibacterial antistatic agent, 15g of ultraviolet resistance agent, 5g of antioxidant 1010, 5g of antioxidant 168 and 2g of calcium stearate are added, and the mixture is stirred uniformly, extruded and introduced into a die, and the die casting and cooling are carried out to obtain the hollow plastic plate.
Comparative example 3: a preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate comprises the following steps: s1: dissolving 7g of sodium carbonate and 3g of sodium bicarbonate in water, adding 0.2g of 2, 6-tetramethylpiperidine oxide and 2g of sodium bromide, uniformly stirring, adding 10g of cellulose, uniformly stirring, adding sodium hypochlorite until the solution turns yellow, adjusting the pH value to 10.5, reacting for 4 hours at 30 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1mol/L, stirring for 5min, then placing into sodium borohydride solution with the concentration of 0.2mol/L, stirring for 10min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting at 30 ℃ for 20min to obtain the nanocellulose; dispersing 10g of oxidized nano cellulose in deionized water, adding 30g of chitosan solution and 10g of nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: dispersing 5g of nano titanium dioxide in 300mL of absolute ethyl alcohol by ultrasonic, adding 1g of gamma-aminopropyl triethoxysilane ethanol solution, uniformly stirring, reacting for 3h at 85 ℃, centrifuging, filtering and drying to obtain modified nano titanium dioxide; uniformly stirring 0.08g of potassium carbonate, 10g of deionized water and 15g of tetrahydrofuran, adding 40g of gamma-methacryloxypropyl trimethoxysilane, stirring for 96 hours under a nitrogen atmosphere, standing, steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12 hours, filtering, and evaporating for 2 hours at 40 ℃ to obtain silsesquioxane; adding 1.5g of Tween 20 and 0.2g of span 80 into 100g of deionized water, uniformly stirring, adding 80g of butyl methacrylate, 20g of acrylic acid, 1g of silsesquioxane and 0.1g of azodiisobutyronitrile, and reacting for 6 hours at 65 ℃ to obtain a silicon-containing acrylate copolymer; uniformly mixing 10g of modified nano titanium dioxide and 99g of silicon-containing acrylate copolymer, and reacting for 18 hours at 35 ℃ to obtain an ultraviolet resistant agent;
s4: 100g of polypropylene is heated and melted at 190 ℃, 20g of antibacterial antistatic agent, 15g of ultraviolet resistance agent, 5g of antioxidant 1010, 5g of antioxidant 168 and 2g of calcium stearate are added, and the mixture is stirred uniformly, extruded and introduced into a die, and the die casting and cooling are carried out to obtain the hollow plastic plate.
And (3) testing: antibacterial performance test: the test bacteria were staphylococcus aureus ATCC8739 and escherichia coli ATCC8739 according to GB/T31402-2015 for antibacterial property;
antistatic performance test: according to MT113-1995, the surface resistance of the alloy is tested by using an insulation resistance tester, the test voltage is 500V, and the temperature is 25 ℃;
mechanical property test: impact strength is detected according to GB/T1843-2008, and bending strength is detected according to GB/T9341-2008;
ultraviolet aging resistance test: and (3) placing the hollow plastic plate subjected to the mechanical property test in an ultraviolet aging box for accelerated aging for 800 hours, performing the mechanical property test on the hollow plastic plate, and evaluating the ultraviolet aging resistance according to the difference value of the two times.
Table 1 hollow plastic panel performance test
Conclusion: the hollow plastic plates prepared in the examples 1-3 have excellent antistatic, antibacterial, ultraviolet-resistant and mechanical properties;
in comparative example 1, the modified nano titanium dioxide is loaded without silsesquioxane, so that the dispersion performance in a polypropylene matrix is reduced, the capturing capability of light is reduced, a cross-linked network structure cannot be formed, and the hollow plastic plate is reduced in antistatic, ultraviolet resistant and mechanical properties;
the addition of nano titanium dioxide with too little or too much load in comparative examples 2 and 3 results in too small or too large void structure to form a cross-linked network structure, and the capturing ability to light is reduced, resulting in a hollow plastic plate with reduced antistatic, ultraviolet resistance and mechanical properties.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A preparation method of a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate is characterized by comprising the following steps of: the method comprises the following steps:
s1: dissolving sodium carbonate and sodium bicarbonate in water, adding an oxidant and a catalyst, stirring uniformly, adding cellulose, stirring uniformly, adding sodium hypochlorite until the solution turns yellow, adjusting the pH to 10-11, reacting for 4-5h at 30-35 ℃, washing, and drying to obtain oxidized nanocellulose;
s2: placing oxidized nanocellulose into silver nitrate solution with the concentration of 0.1-0.2mol/L, stirring for 5-10min, then placing into sodium borohydride solution with the concentration of 0.2-0.3mol/L, stirring for 10-15min, adding plating solution B, stirring for 2-5min, adding plating solution A, and reacting for 20-25min at the temperature of 30-50 ℃ to obtain the nanocellulose; dispersing oxidized nano cellulose in deionized water, adding chitosan solution and nano silver cellulose, and uniformly stirring to obtain an antibacterial antistatic agent;
s3: adding a surfactant and an emulsifier into deionized water, uniformly stirring, adding butyl methacrylate, acrylic acid, silsesquioxane and an initiator, and reacting at 65-70 ℃ for 6-7h to obtain a silicon-containing acrylate copolymer; uniformly mixing the modified nano titanium dioxide and the silicon-containing acrylic ester copolymer, and reacting for 18-24 hours at the temperature of 35-40 ℃ to obtain an ultraviolet resistant agent;
s4: and heating and melting polypropylene, adding an antibacterial antistatic agent, an ultraviolet resistant agent, an antioxidant and calcium stearate, uniformly stirring, extruding, introducing into a die, and performing die casting and cooling to obtain the hollow plastic plate.
2. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 1, is characterized in that: in the step S1, the oxidant is 2, 6-tetramethyl piperidine oxide, and the catalyst is sodium bromide; cellulose: sodium carbonate: the mass ratio of the sodium bicarbonate is 1 (0.75-0.8) to 0.25-0.3.
3. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 1, is characterized in that: in the step S2, the plating solution A is a glucose ethanol water solution with the concentration of 9-10 g/L; plating solution B was prepared as follows: dissolving silver nitrate in water, adding ammonia water until precipitation disappears, adding sodium hydroxide, and adding ammonia water again until precipitation disappears to obtain plating solution B; in the antibacterial antistatic agent, oxidized nanocellulose: chitosan solution: the mass ratio of the nano silver cellulose is 3:1 (1-2).
4. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 1, is characterized in that: in the step S3, the modified nano titanium dioxide is prepared according to the following method: dispersing nano titanium dioxide in absolute ethyl alcohol by ultrasonic, adding gamma-aminopropyl triethoxysilane ethanol solution, stirring uniformly, reacting for 3-4h at 85-90 ℃, centrifuging, filtering and drying to obtain modified nano titanium dioxide.
5. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 4, is characterized in that: in the ethanol solution of the gamma-aminopropyl triethoxysilane, the gamma-aminopropyl triethoxysilane: ethanol: the mass ratio of the deionized water is (2.5-3) 8:1; nano titanium dioxide: the mass ratio of the gamma-aminopropyl triethoxysilane ethanol solution is (5-10) to (1-2).
6. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 1, is characterized in that: in step S3, the silsesquioxane is prepared as follows: stirring potassium carbonate, deionized water and tetrahydrofuran uniformly, adding gamma-methacryloxypropyl trimethoxy silane, stirring for 96-108h under nitrogen atmosphere, standing, steaming, adding dichloromethane and anhydrous magnesium sulfate, stirring for 12-24h, filtering, and evaporating at 40-45deg.C for 2-3h to obtain silsesquioxane.
7. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 6, is characterized in that: gamma-methacryloxypropyl trimethoxysilane: deionized water: the mass ratio of the tetrahydrofuran is (4-5) 1 (1.5-2).
8. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 1, is characterized in that: in the step S3, the surfactant is Tween 20; the emulsifier is span 80; the initiator is azodiisobutyronitrile; silsesquioxane: butyl methacrylate: the mass ratio of the acrylic acid is 1 (80-90) to 10-20; modified nano titanium dioxide: the mass ratio of the silicon-containing acrylic ester copolymer is (1-5) (95-99).
9. The method for preparing the high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic plate, as claimed in claim 1, is characterized in that: in the step S4, the components are calculated according to the parts by weight, 80-100 parts of polypropylene, 20-30 parts of antibacterial antistatic agent, 15-20 parts of ultraviolet resistant agent, 10-20 parts of antioxidant and 2-5 parts of calcium stearate; the antioxidant is one or both of antioxidant 1010 and antioxidant 168.
10. A hollow plastic sheet material prepared by the method for preparing a high-strength antibacterial, antistatic and ultraviolet-resistant hollow plastic sheet material according to any one of claims 1-9.
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| CN117594735B (en) * | 2023-11-20 | 2024-04-30 | 南通惟怡新材料科技有限公司 | Laminated board and preparation method thereof |
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