CN114532354A - Antibacterial compound, antibacterial polycarbonate material, and preparation method and application thereof - Google Patents
Antibacterial compound, antibacterial polycarbonate material, and preparation method and application thereof Download PDFInfo
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- CN114532354A CN114532354A CN202210044976.3A CN202210044976A CN114532354A CN 114532354 A CN114532354 A CN 114532354A CN 202210044976 A CN202210044976 A CN 202210044976A CN 114532354 A CN114532354 A CN 114532354A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
- A01N57/14—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing aromatic radicals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
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- 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
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- 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
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- 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
- C08K3/24—Acids; Salts thereof
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- 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
- C08K3/32—Phosphorus-containing compounds
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- 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
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
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- 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
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/325—Calcium, strontium or barium phosphate
Abstract
The invention relates to an antibacterial compound, an antibacterial polycarbonate material, and a preparation method and application thereof. The antibacterial compound comprises a phosphate compound and ceramic powder. According to the invention, through the synergistic cooperation of the phosphate compound and the ceramic powder in a specific ratio, the obtained antibacterial compound has a broad-spectrum and high-efficiency antibacterial effect, and is non-toxic and good in heat resistance; when the antibacterial component is added into polycarbonate as an antibacterial component, the polycarbonate can be endowed with better antibacterial performance, and the application of the antibacterial component is further expanded.
Description
Technical Field
The invention belongs to the technical field of engineering plastics, and particularly relates to an antibacterial compound, an antibacterial polycarbonate material, and preparation methods and applications thereof.
Background
Polycarbonate (PC) is an engineering plastic with excellent performance, has good comprehensive performance, high mechanical strength, good impact toughness, stable size, good heat resistance and good electrical insulation, and has wide application in the fields of household appliances, digital products, IT products and the like.
As the health requirements of people increase, plastics have attracted more and more attention. Products such as medical supplies, household appliances, air purification equipment and the like which may come into contact with pathogenic microorganisms (such as viruses, bacteria and molds) have high requirements on broad spectrum, high efficiency, timeliness, heat resistance, safety and the like of antibacterial agents.
The existing antibacterial agents against bacteria mainly act by killing bacteria or blocking the propagation of bacteria, and can be classified into the following three types. The first type is inorganic antibacterial agent, such as metal ions and oxides of nano silver, copper, zinc and the like, wherein the silver antibacterial agent has the advantages of broad-spectrum sterilization, high safety, good temperature resistance, difficult generation of drug resistance and the like, but has high cost. The second type is an organic antibacterial agent, such as quaternary ammonium salt, biguanide, phenolic substance, etc., which has the advantage of quick effect, but has the disadvantages of short time, poor heat resistance, toxicity, etc. The third type is natural antibacterial agent, such as chitosan, chitin, etc., which has good bactericidal performance but is difficult to extract and poor in heat resistance.
The existing mildewcide for the mildew also plays a role in killing the mildew and blocking the propagation of the mildew, and mainly comprises the following three types. The first is inorganic mildew inhibitor, such as hypochlorous acid, iodide, zinc oxide, etc., although such inorganic mildew inhibitors have the advantage of long time, they have the disadvantages of poor stability and poor mildew-proof effect. The second type is an organic mildew preventive, such as heterocyclic compounds such as sodium benzoate, benzimidazole and the like, which has broad mildew preventive spectrum and good effect, but part of substances have certain toxicity. The third type is a natural mildew preventive such as serum albumin, garlicin, cinnamon oil, etc., but it is inferior in heat resistance and decomposes at 160 to 180 ℃.
At present, the existing patent discloses polycarbonate plastic with bacteriostatic action and a preparation method thereof, and the polycarbonate plastic achieves the effects of bacteriostasis, sterilization and mildew prevention by utilizing the cooperation of a traditional Chinese medicine antibacterial agent, lanthanum-loaded zinc oxide, cerium-loaded titanium dioxide metal ion inorganic antibacterial agent and natamycin. But such research is still rare.
Therefore, the development of a novel antibacterial agent which has broad spectrum, high efficiency, good heat resistance and no toxicity and can kill various bacteria and moulds has important research significance and application value.
Disclosure of Invention
The invention aims to overcome the defects or shortcomings of antibacterial agents in the prior art and provide an antibacterial compound. The antibacterial compound provided by the invention has broad-spectrum and high-efficiency sterilization effects, is good in heat resistance and non-toxic by compounding the phosphate compound and the specific ceramic powder, and can be used as a bacteriostatic component to be added into a polycarbonate material so as to endow the polycarbonate material with better antibacterial performance on pathogenic microorganisms such as bacteria, mould and the like.
The invention also aims to provide a preparation method of the antibacterial compound.
The invention also aims to provide application of the antibacterial compound in preparing antibacterial polycarbonate materials.
Another object of the present invention is an antimicrobial polycarbonate material.
The invention also provides a preparation method of the antibacterial polycarbonate material.
The invention also aims to provide application of the antibacterial polycarbonate material in preparation of medical equipment, household appliances and air purification equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
an antibacterial compound comprises the following components in parts by weight:
2-15 parts of a phosphate ester compound,
1-10 parts of ceramic powder,
the weight percentage of CaO in the ceramic powder is not less than 5%.
The inventor of the invention finds that the ceramic powder has larger oxidation-reduction potential and is not beneficial to the attachment and growth of pathogenic microorganisms such as bacteria, mould and the like; the introduction of a certain amount of calcium carbonate can react with substances containing OH groups to generate active oxygen (such as superoxide anion, singlet oxygen, hydrogen peroxide free radical and the like), so that the active oxygen attacks bacteria and mold and inactivates the bacteria and mold. In addition, the phosphate compound can generate phosphite ions in an environmental system, so that the metabolic functions of bacteria and mould are hindered, and sporulation or spore germination is inhibited.
According to the invention, through the synergistic cooperation of the phosphate compound and the ceramic powder in a specific ratio, the obtained antibacterial compound has a broad-spectrum and high-efficiency antibacterial effect, and is non-toxic and good in heat resistance; when the antibacterial component is added into polycarbonate as an antibacterial component, the polycarbonate can be endowed with better antibacterial performance, and the application of the antibacterial component is further expanded.
Preferably, the phosphate compound is one or more of triphenyl phosphate, resorcinol-bis (diphenyl phosphate) or bisphenol a-bis (diphenyl phosphate).
Preferably, the ceramic powder is one or more of biological ceramic powder, glass ceramic powder, calcium phosphate ceramic powder or aluminum silicate ceramic powder. More preferably, the biological ceramic powder is made of natural fritillary. The ceramic powder has higher CaO, is derived from biological environment-friendly materials, can further improve the antibacterial effect and is richer in economic environmental protection, consumes less energy in the production stage, and is favorable for meeting the requirements of carbon neutralization, low carbon and environmental protection.
Preferably, the weight fraction of CaO in the ceramic powder is 5-30%.
Preferably, the oxidation-reduction potential of the ceramic powder is-1.2-2V; more preferably 0.8 to 2V.
The oxidation-reduction potential of the ceramic powder is determined by the following procedure: the measurement was carried out by weighing 5g of the sample, adding it to a mixed solution of 10mL of alcohol and 40mL of pure water, and inserting a platinum electrode and a reference electrode directly into the suspension, wherein the reference electrode was a saturated silver/silver chloride electrode.
The preparation method of the antibacterial compound comprises the following steps: and (3) uniformly mixing the phosphate compound and the ceramic powder to obtain the antibacterial compound.
The application of the antibacterial compound in the preparation of the antibacterial polycarbonate material is also within the protection scope of the invention.
The invention also provides an antibacterial polycarbonate material, which comprises the following components in parts by weight:
100 parts of polycarbonate (A), 100 parts of polycarbonate (B),
3-25 parts of an antibacterial compound.
Polycarbonates conventional in the art may be used in the present invention. When the polycarbonate is selected, the polycarbonate can be reasonably selected according to the requirements of other properties.
Preferably, the polycarbonate has a melt index of 8-20 g/10min according to ISO 1133-1-2011 under the conditions of a melting temperature of 300 ℃ and a load of 1.2 kg.
Preferably, the weight part of the antibacterial compound is 10-20 parts. Under the dosage range, the antibacterial and mildewproof fabric has excellent antibacterial and mildewproof effects and lower cost.
Preferably, the antibacterial polycarbonate material further comprises other auxiliary agents.
Other additives conventional in the art may also be added to the antimicrobial polycarbonate material of the present invention to impart or enhance corresponding properties.
More preferably, the other auxiliary agent is one or more of an antioxidant, an anti-dripping agent, a release agent, a coupling agent, an antistatic agent or a coloring agent.
Further preferably, the antioxidant is n-octadecyl beta- (4-hydroxyphenyl-3, 5-di-tert-butyl) propionate (antioxidant 1076), pentaerythritol tetrakis- [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] (antioxidant 1010), s-triazine-2, 4,6(1H, 3H, 5H) trione (antioxidant 3114), 1,3, 5-trimethyl-2, 4,6- (3, 5-di-tert-butyl-4-hydroxyphenyl) (antioxidant), diethylene glycol bis [ beta- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate ], or triethylene glycol bis beta- (3-tert-butyl-4-hydroxy-5-yl) propionate ] -one or more of methylphenyl) propionate (antioxidant 245), tris (2, 4-di-tert-butyl-4-hydroxyphenyl) phosphite ester (phosphite triester (antioxidant 168), benzylidene-propanedi-acid ester (antioxidant B-CAP), bis (2, 6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate (antioxidant PEP-36), bis (2, 4-dicumylphenyl) pentaerythritol diphosphite (antioxidant S-608) or C20-24-alpha-maleic anhydride-2, 2,6, 6-tetramethylolefin (antioxidant 5050H); the antioxidant is 0.1-1 part by weight.
Further preferably, the anti-dripping agent is polytetrafluoroethylene; the anti-dripping agent is 0.2-1 part by weight.
Further preferably, the release agent is one or more of PPA release agent, montan wax release agent and silicon release agent; the weight part of the lubricant is 0.1-2 parts.
Further preferably, the coupling agent is one or more of an aminosilane coupling agent, an epoxy silane coupling agent, a titanate coupling agent or an aluminum-titanium composite coupling agent; the coupling agent is 0.1-0.3 part by weight.
Further preferably, the antistatic agent is one or more of polyether antistatic agents or monoglyceride antistatic agents; the antistatic agent is 0.1-30 parts by weight.
More preferably, the polyether antistatic agent is one or more of polyethylene glycol ester or ether, polyoxyethylene fatty ether, polyoxyethylene alkylphenyl ether, polyether ester amide, ethylene diamine ethylene oxide propylene oxide ether, octyl phenyl vinyl ether, polyether ester imide or fatty amine ethoxy ether.
More preferably, the monoglyceride-based antistatic agent is a glycerin fatty acid ester.
Further preferably, the colorant is one or more of carbon black, black seeds, titanium dioxide, titanium yellow, phthalocyanine blue or anthraquinone red; the colorant is 0.1-10 parts by weight.
The preparation method of the antibacterial polycarbonate material comprises the following steps: and uniformly mixing the components to obtain a mixture, then melting and extruding the mixture, and granulating to obtain the antibacterial polycarbonate material.
Preferably, the preparation method of the antibacterial polycarbonate material comprises the following steps: mixing the polycarbonate, the antibacterial compound and other auxiliary agents (if any) in a high-speed mixer; then melting and extruding the mixture in a double-screw extruder, and granulating to obtain the thin-wall flame-retardant low-shrinkage polycarbonate material; the length-diameter ratio of the double-screw extruder is 36: 1-56: 1, the screw temperature is 270-290 ℃, and the rotating speed is 200-600 revolutions per minute.
The application of the antibacterial polycarbonate material in the preparation of medical equipment, household appliances and air purification equipment is also within the protection scope of the invention.
Compared with the prior art, the invention has the following beneficial effects:
the antibacterial compound provided by the invention has broad-spectrum and high-efficiency sterilization effects, is good in heat resistance and non-toxic by compounding the phosphate compound and the specific ceramic powder, and can be used as a bacteriostatic component to be added into a polycarbonate material so as to endow the polycarbonate material with better antibacterial performance on pathogenic microorganisms such as bacteria, mould and the like.
Detailed Description
The invention is further illustrated by the following examples. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention. Experimental procedures without specific conditions noted in the examples below, generally according to conditions conventional in the art or as suggested by the manufacturer; the raw materials, reagents and the like used are, unless otherwise specified, those commercially available from the conventional markets and the like. Any insubstantial changes and substitutions made by those skilled in the art based on the present invention are intended to be covered by the claims.
Some reagents selected in the examples and comparative examples of the present invention are described below:
polycarbonate 1: melt index 12g/10min, PC 130010 NP daily LG chemistry;
polycarbonate 2 #: melt index 8g/10min, PC 2100, wanhua chemistry;
polycarbonate No. 3: melt index 20g/10min, FN 1900, Japan Bright;
polycarbonate 4 #: melt index of 3g/10min, PC 7030PJ, Sanyangchuan;
1-11 parts of antibacterial compound: the self-made antibacterial compound is prepared from the following formula 1-11 shown in Table 1: and weighing the phosphate compound and the ceramic powder according to the proportion, and uniformly mixing to obtain the ceramic powder.
TABLE 1 formulation of antibacterial composition 1 ~ 11 (parts)
Phosphate ester compound 1: bisphenol a-bis (diphenyl phosphate), a commodity chemical;
phosphate ester Compound 2: triphenyl phosphate, adico chemical;
phosphate ester Compound 3: resorcinol-bis (diphenyl phosphate), adico chemical;
1, ceramic powder: the bio-ceramic powder, Hulk bio-ceramic powder, chengjiake textile ltd, has a CaO content (weight fraction, the same below) of 28% and an oxidation-reduction potential of 0.8V.
2, ceramic powder: biological ceramic powder, alpha-Ca3(PO4)2Shanghai Mailuo pharmaceutical company, CaO content 30%, oxidation-reduction potential 2V.
Ceramic powder 3: the biological ceramic powder, calcium phosphate (BCP), Sea biology, CaO content is 5%, and oxidation-reduction potential is 0V.
Ceramic powder 4: glass ceramic powder, FR0135, an Ammi micro-nano new material, the CaO content is 30 percent, and the oxidation-reduction potential is-0.68V.
Ceramic powder 5: calcium phosphate ceramics, Shaanxi Yikang Long biotechnology limited company, CaO content of 20%, redox potential of-0.89V.
Ceramic powder 6: calcium aluminate ceramic, calcium aluminate powder, Kaili Xintai melt Co., Ltd., CaO content of 5%, redox potential of-0.95V.
And (3) ceramic powder 7: zirconia ceramics, aluminum silicate ceramics, Jiangsu Toolv grinding science and technology Limited, CaO content is 0, and redox potential is-1.2V.
Other auxiliary agents: antioxidant, IRGANOX 1076, commercially available.
The polycarbonate materials of the examples and comparative examples of the present invention were prepared by the following procedure:
weighing the raw materials according to requirements, and mixing in a high-speed mixer to obtain a uniformly mixed material; and putting the uniformly mixed material into a double-screw extruder, mixing, melting, homogenizing, extruding, granulating and cooling to obtain the polycarbonate material, wherein the temperature of a screw cylinder is 270-290 ℃, the length-diameter ratio of the double-screw extruder is 40:1, and the rotating speed is 400 r/min.
The polycarbonate materials of the examples and comparative examples of the invention were tested according to the following test methods:
(1) and (3) antibacterial testing: according to the test method of the antibacterial property of the plastic-plastic surface of GB/T31402-2015/ISO 22196:2007(IDT), the test strains are escherichia coli and staphylococcus aureus.
(2) And (3) mildew resistance test: according to GB/T2423.16-2008 (IEC60068-2-10:2005, IDT), the test strains were Aspergillus niger, Aspergillus terreus, Trichoderma viride, Penicillium funiculosum, Chaetomium globosum, Paecilomyces variotii, Scopulariopsis brevicaulis, and Ascomyces resiniferus. Rating standard: grade 0-no mildew growth: no growth was observed under a full-length lens (magnification 50 times); grade 1-see the mold growth trace under the microscope; 2a grade, sparse mildew can be seen by naked eyes or scattered and local mildew can be seen under a microscope, and the mildew area is not more than 5% of the test area; level 2 b-visually, it is evident that many places grow more or less uniformly with mold growth, the mold growth area does not exceed 25% of the test area; mildew growth is clearly seen by grade 3 naked eyes, and the area of the mildew growth exceeds 25% of the test area. The 0 grade and the 1 grade show that the mildew resistance is better.
Examples 1 to 17
This example provides a series of antimicrobial polycarbonate materials in which the amounts of the components in the formulation are shown in Table 1.
TABLE 2 formulation (parts) of examples 1 to 17
| Examples | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Polycarbonate 1 | 100 | 100 | 100 | 100 | 100 | / | / | / | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Polycarbonate 2 | / | / | / | / | / | 100 | / | / | / | / | / | / | / | / | / | / | / |
| Polycarbonate 3 | / | / | / | / | / | / | 100 | / | / | / | / | / | / | / | / | / | / |
| Polycarbonate 4 | / | / | / | / | / | / | / | 100 | / | / | / | / | / | / | / | / | / |
| Antibacterial compound 1 | 15 | 3 | 10 | 20 | 25 | 15 | 15 | 15 | / | / | / | / | / | / | / | / | / |
| Antibacterial compound 2 | / | / | / | / | / | / | / | / | 15 | / | / | / | / | / | / | / | / |
| Antibacterial complex 3 | / | / | / | / | / | / | / | / | / | 15 | / | / | / | / | / | / | / |
| Antibacterial compound 4 | / | / | / | / | / | / | / | / | / | / | 15 | / | / | / | / | / | / |
| Antibacterial complex 5 | / | / | / | / | / | / | / | / | / | / | / | 15 | / | / | / | / | / |
| Antibacterial compound 6 | / | / | / | / | / | / | / | / | / | / | / | / | 15 | / | / | / | / |
| Antibacterial compound 7 | / | / | / | / | / | / | / | / | / | / | / | / | / | 15 | / | / | / |
| Antimicrobial complex 8 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | 15 | / | / |
| Antibacterial compound 9 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | 15 | / |
| Antimicrobial composite 10 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / | 15 |
| Other auxiliaries | 0.2 | 1 | 0 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
Comparative examples 1 to 6
This comparative example provides a series of polycarbonate materials having the formulation shown in Table 2.
TABLE 3 formulations (parts) of comparative examples 1 to 6
| Components | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | Comparative example 6 |
| Polycarbonate 1 | 100 | 100 | 100 | 100 | 100 | 100 |
| Antibacterial compound 1 | / | / | / | / | / | 2 |
| Antimicrobial composite 11 | 15 | / | / | / | / | / |
| Ceramic powder 1 | / | 15 | 5 | / | / | / |
| Phosphoric acid ester Compound 1 | / | / | / | 15 | 10 | / |
| Other auxiliaries | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
The properties of the polycarbonate materials provided in the examples and comparative examples were measured according to the aforementioned property test method, and the results are shown in Table 4.
TABLE 4 results of Performance test of the polycarbonate materials provided in examples 1 to 17 and comparative examples 1 to 6
From the test results, the antibacterial polycarbonate material provided by the embodiments of the invention has good antibacterial and mildewproof effects on various bacteria and moulds, the antibacterial inhibition rate is more than 99%, the mildewproof grade is 0 grade or 1 grade, and the comprehensive performance of the embodiment 1 is the best. The CaO content of the ceramic powder in the antibacterial compound added in the comparative example 1 is 0, and the antibacterial and mildewproof effects are poor; compared with the comparative examples 2 and 3, only the ceramic powder is added, so that the antibacterial and mildew-proof effects are improved to a certain extent, but the effects of the examples cannot be achieved; comparative examples 4 and 5 only added with phosphate ester compound have poor mildew-proof effect and antibacterial effect not reaching 99%; comparative example 6 the antibacterial effect was less than 99% with a small amount of the antibacterial compound added.
It will be appreciated by those of ordinary skill in the art that the examples provided herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited examples and embodiments. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (13)
1. The antibacterial compound is characterized by comprising the following components in parts by weight:
2-15 parts of a phosphate ester compound,
1-10 parts of ceramic powder,
the weight percentage of CaO in the ceramic powder is not less than 5%.
2. The antimicrobial composition of claim 1, wherein the phosphate compound is one or more of triphenyl phosphate, resorcinol-bis (diphenyl phosphate), or bisphenol-a-bis (diphenyl phosphate).
3. The antimicrobial composite of claim 1, wherein the ceramic powder is one or more of a bio-ceramic powder, a glass ceramic powder, a calcium phosphate ceramic powder, or an aluminum silicate ceramic powder.
4. The antibacterial composite of claim 1, wherein the weight fraction of CaO in the ceramic powder is 5-30%.
5. A method for preparing the antibacterial compound according to any one of claims 1 to 4, which comprises the following steps: and (3) uniformly mixing the phosphate compound and the ceramic powder to obtain the antibacterial compound.
6. The use of the antimicrobial composite of any one of claims 1 to 4 in the preparation of an antimicrobial polycarbonate material.
7. The antibacterial polycarbonate material is characterized by comprising the following components in parts by weight:
100 parts of polycarbonate (A), 100 parts of polycarbonate (B),
3-25 parts of an antibacterial compound.
8. The antibacterial polycarbonate material of claim 7, wherein the polycarbonate has a melt index of 8-20 g/10min according to ISO 1133-1-2011 under a melt temperature of 300 ℃ and a load of 1.2 kg.
9. The antibacterial polycarbonate material of claim 7, wherein the antibacterial compound is 10-20 parts by weight.
10. The antimicrobial polycarbonate material of claim 7, further comprising an additional additive.
11. The antimicrobial polycarbonate material of claim 10, wherein the other additives are one or more of antioxidants, anti-dripping agents, mold release agents, coupling agents, antistatic agents, or colorants.
12. The method for preparing the antibacterial polycarbonate material according to any one of claims 7 to 11, characterized by comprising the steps of: and uniformly mixing the components to obtain a mixture, then melting and extruding the mixture, and granulating to obtain the antibacterial polycarbonate material.
13. The application of the thin-wall flame-retardant low-shrinkage polycarbonate material as claimed in any one of claims 7 to 11 in preparation of medical equipment, household appliances and air purification equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210044976.3A CN114532354A (en) | 2022-01-14 | 2022-01-14 | Antibacterial compound, antibacterial polycarbonate material, and preparation method and application thereof |
| PCT/CN2022/139618 WO2023134393A1 (en) | 2022-01-14 | 2022-12-16 | Antibacterial complex, antibacterial polycarbonate material, preparation method therefor, and use thereof |
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| CN114591617A (en) * | 2022-03-08 | 2022-06-07 | 金发科技股份有限公司 | Polycarbonate material and preparation method and application thereof |
| WO2023134393A1 (en) * | 2022-01-14 | 2023-07-20 | 金发科技股份有限公司 | Antibacterial complex, antibacterial polycarbonate material, preparation method therefor, and use thereof |
| WO2023134404A1 (en) * | 2022-01-14 | 2023-07-20 | 金发科技股份有限公司 | Polycarbonate composition, preparation method therefor and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103351589A (en) * | 2013-06-28 | 2013-10-16 | 广东威林工程塑料有限公司 | High-performance imitated ceramic polycarbonate composite material and preparation method thereof |
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| JP2001220464A (en) * | 2000-02-08 | 2001-08-14 | Asahi Denka Kogyo Kk | Antimicrobial agent composition for high molecular material |
| CN101058510A (en) * | 2007-01-19 | 2007-10-24 | 江苏高淳陶瓷股份有限公司 | Method of preparing highly effective nano antibiotic functional ceramic and application thereof |
| US20090202658A1 (en) * | 2008-02-08 | 2009-08-13 | Cuero Raul G | Versatile antimicrobial agent and uses thereof |
| CN113801457B (en) * | 2021-10-16 | 2022-07-19 | 福州大学 | Efficient antibacterial polycarbonate composite material and preparation method thereof |
| CN114532354A (en) * | 2022-01-14 | 2022-05-27 | 金发科技股份有限公司 | Antibacterial compound, antibacterial polycarbonate material, and preparation method and application thereof |
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| CN103351589A (en) * | 2013-06-28 | 2013-10-16 | 广东威林工程塑料有限公司 | High-performance imitated ceramic polycarbonate composite material and preparation method thereof |
Non-Patent Citations (1)
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| JUN SAWAI;EMIKO KAWADA;FUMIO KANOU;HIDEO IGARASHI;ATSUSHI HASHIMOTO;TAKAO KOKUGAN;MASARU SHIMIZU,: "Detection of Active Oxygen Generated from Ceramic Powders Having Antibacterial Activity", JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, vol. 29, no. 4, pages 627 * |
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| WO2023134393A1 (en) * | 2022-01-14 | 2023-07-20 | 金发科技股份有限公司 | Antibacterial complex, antibacterial polycarbonate material, preparation method therefor, and use thereof |
| WO2023134404A1 (en) * | 2022-01-14 | 2023-07-20 | 金发科技股份有限公司 | Polycarbonate composition, preparation method therefor and application thereof |
| CN114591617A (en) * | 2022-03-08 | 2022-06-07 | 金发科技股份有限公司 | Polycarbonate material and preparation method and application thereof |
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