CN113278214A - Nano-silver modified water supply pipe wrapped by metal organic framework and preparation method thereof - Google Patents
Nano-silver modified water supply pipe wrapped by metal organic framework and preparation method thereof Download PDFInfo
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- CN113278214A CN113278214A CN202110586514.XA CN202110586514A CN113278214A CN 113278214 A CN113278214 A CN 113278214A CN 202110586514 A CN202110586514 A CN 202110586514A CN 113278214 A CN113278214 A CN 113278214A
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- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/008—Supramolecular polymers
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
A metal organic framework coated nano-silver modified water supply pipe comprises the following raw materials in parts by weight: 200 parts of a high-density polyethylene material; 10 parts of nano-silver composite material wrapped by a metal organic framework; 10 parts of color master batch. According to the invention, a metal organic framework is used as a carrier of nano silver, the metal organic framework has a large specific surface area, a framework and a pore channel, the aggregation of the nano silver can be prevented, and simultaneously, the good conductivity and antibacterial capability of nano silver particles are utilized, so that the composite material of the nano silver particles has antistatic and antibacterial properties, nano silver particles are generated in situ by adopting a hydrothermal method and are loaded on the surface, the framework and the pore channel of the metal organic framework, and the size and the loading amount of the nano silver particles can be flexibly adjusted according to the type of the metal organic framework, the concentration of reactants, the reaction time and the like; the preparation method is simple and convenient, and the produced water supply pipe has high antistatic and antibacterial properties and long service life.
Description
Technical Field
The invention belongs to the technical field of water supply pipes, and particularly relates to a metal organic framework coated nano silver modified water supply pipe and a preparation method thereof.
Background
The water supply pipe is produced by using sanitary polyethylene resin as main material, adding proper amount of stabilizer, lubricant, stuffing, coloring agent, etc. and through extrusion in plastic extruder, injection in injection molding machine, cooling, solidification, setting, inspection, packing and other steps.
However, the prior water supply pipe has poor antistatic and antibacterial performance and short service life, and after long-term use, accumulated scale impurities are attached to the inside of the water supply pipe and can breed microorganisms, so that the water quality is reduced, and the life quality of people is directly influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a metal organic framework coated nano silver modified water supply pipe and a preparation method thereof, and the specific technical scheme is as follows:
a metal organic framework coated nano-silver modified water supply pipe comprises the following raw materials in parts by weight:
200 parts of a high-density polyethylene material;
10 parts of nano-silver composite material wrapped by a metal organic framework;
10 parts of color master batch.
A preparation method of a nano-silver modified water supply pipe wrapped by a metal organic framework comprises the following steps:
s1, preparation of a metal organic framework:
in the presence of an organic solvent, mixing a metal salt and an organic ligand according to a ratio of 5: 1, placing the mixture in a reaction kettle for reaction for 24 hours, wherein the temperature is controlled at 210 ℃, the pressure is not more than 3MPa, and obtaining a metal organic framework by utilizing a hydrothermal synthesis reaction;
s2, preparing the metal organic framework wrapped nano silver composite material:
placing the metal organic framework obtained in the step S1, adding silver nitrate into a counter-pressure kettle, adopting water as a reaction medium, uniformly stirring at the temperature of 80 ℃, standing for a period of time, and pouring out supernatant to obtain a metal organic framework-coated nano silver composite material;
s3, preparing the antibacterial conductive master batch:
the metal organic framework is wrapped with the nano-silver composite material and the high-density polyethylene material according to the weight ratio of 1: 250, and preparing the antibacterial conductive master batch by extrusion;
s4, preparing a nano-silver modified water supply pipe wrapped by a metal organic framework:
mixing the antibacterial conductive master batch obtained in the step S3 with the color master batch and the high-density polyethylene material according to the weight ratio of 1: 1: 5, mixing, and extruding and molding at the temperature of 190 ℃ to prepare the nano-silver modified water supply pipe wrapped by the metal organic framework.
Further, in the steps S1 and S2, the reaction kettle is a stainless steel high-pressure reaction kettle with a teflon liner.
Further, in the step S2, the silver content of the silver nitrate is 60% or more.
In step S1, the metal salt is any one of zinc nitrate, copper nitrate, and cobalt nitrate.
In step S1, the organic ligand is any one of methylimidazole and terephthalic acid.
Further, in step S1, the organic solvent is any one of methanol and N, N-dimethylformamide.
The invention has the beneficial effects that:
1. according to the invention, a metal organic framework is used as a carrier of nano silver, the metal organic framework has a large specific surface area, a framework and a pore channel, the aggregation of the nano silver can be prevented, and simultaneously, the good conductivity and antibacterial capability of nano silver particles are utilized, so that the composite material of the nano silver particles has antistatic and antibacterial properties, nano silver particles are generated in situ by adopting a hydrothermal method and are loaded on the surface, the framework and the pore channel of the metal organic framework, and the size and the loading amount of the nano silver particles can be flexibly adjusted according to the type of the metal organic framework, the concentration of reactants, the reaction time and the like;
2. the preparation method is simple and convenient, and the produced water supply pipe has high antistatic and antibacterial properties and long service life.
Drawings
FIG. 1 shows a flow chart of a preparation method of a metal organic framework coated nano silver modified water supply pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A metal organic framework wrapped nano-silver modified water supply pipe is characterized in that: the feed comprises the following raw materials in parts by weight:
200 parts of a high-density polyethylene material;
10 parts of nano-silver composite material wrapped by a metal organic framework;
10 parts of color master batch.
A preparation method of a nano-silver modified water supply pipe wrapped by a metal organic framework comprises the following steps:
s1, preparation of a metal organic framework:
in the presence of an organic solvent, mixing a metal salt and an organic ligand according to a ratio of 5: 1, placing the mixture in a reaction kettle for reaction for 24 hours, wherein the temperature is controlled at 210 ℃, the pressure is not more than 3MPa, and obtaining a metal organic framework by utilizing a hydrothermal synthesis reaction;
s2, preparing the metal organic framework wrapped nano silver composite material:
placing the metal organic framework obtained in the step S1, adding silver nitrate into a counter-pressure kettle, adopting water as a reaction medium, uniformly stirring at the temperature of 80 ℃, standing for a period of time, and pouring out supernatant to obtain a metal organic framework-coated nano silver composite material;
s3, preparing the antibacterial conductive master batch:
the metal organic framework is wrapped with the nano-silver composite material and the high-density polyethylene material according to the weight ratio of 1: 250, and preparing the antibacterial conductive master batch by extrusion;
s4, preparing a nano-silver modified water supply pipe wrapped by a metal organic framework:
mixing the antibacterial conductive master batch obtained in the step S3 with the color master batch and the high-density polyethylene material according to the weight ratio of 1: 1: 5, mixing, and extruding and molding at the temperature of 190 ℃ to prepare the nano-silver modified water supply pipe wrapped by the metal organic framework.
In the steps S1 and S2, the reaction kettle is a stainless steel high-pressure reaction kettle with a polytetrafluoroethylene lining.
In step S2, the silver content of the silver nitrate is 60% or more.
In the step S1, the metal salt is any one of zinc nitrate, copper nitrate, and cobalt nitrate.
In the step S1, the organic ligand is any one of methylimidazole and terephthalic acid.
In the step S1, the organic solvent is any one of methanol and N, N-dimethylformamide.
And (3) performance testing:
1. the water supply pipe modified by the metal organic framework wrapped with the nano silver prepared in the above embodiment is subjected to an antistatic test, and the surface resistivity of the water supply pipe is 103-5The power of ohm; therefore, the metal organic framework is wrapped on the nano-silver modified water supply pipe, and the antistatic property is excellent.
2. The metal organic framework prepared in the embodiment is wrapped with the nano-silver modified water supply pipe to be subjected to an antibacterial test, and the antibacterial activity value of the water supply pipe is more than or equal to 2.0 or the antibacterial rate is more than or equal to 99 percent; therefore, the metal organic framework is wrapped on the nano-silver modified water supply pipe, and the antibacterial performance is excellent.
The working principle of the invention is as follows:
according to the invention, the metal organic framework is used as a carrier of the nano silver, the metal organic framework has a large specific surface area, a framework and a pore channel, the aggregation of the nano silver can be prevented, meanwhile, the good conductivity and antibacterial capability of nano silver particles are utilized, so that the composite material of the nano silver particles has the antistatic and antibacterial properties, the nano silver particles are generated in situ by adopting a hydrothermal method and are loaded on the surface, the framework and the pore channel of the metal organic framework, and the size and the loading amount of the nano silver particles can be flexibly adjusted according to the type of the metal organic framework, the concentration of reactants, the reaction time and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A metal organic framework wrapped nano-silver modified water supply pipe is characterized in that: the feed comprises the following raw materials in parts by weight:
200 parts of a high-density polyethylene material;
10 parts of nano-silver composite material wrapped by a metal organic framework;
10 parts of color master batch.
2. The preparation method of the metal organic framework-coated nano-silver modified water supply pipe according to claim 1, which is characterized by comprising the following steps: the method comprises the following steps:
s1, preparation of a metal organic framework:
in the presence of an organic solvent, mixing a metal salt and an organic ligand according to a ratio of 5: 1, placing the mixture in a reaction kettle for reaction for 24 hours, wherein the temperature is controlled at 210 ℃, the pressure is not more than 3MPa, and obtaining a metal organic framework by utilizing a hydrothermal synthesis reaction;
s2, preparing the metal organic framework wrapped nano silver composite material:
placing the metal organic framework obtained in the step S1, adding silver nitrate into a counter-pressure kettle, adopting water as a reaction medium, uniformly stirring at the temperature of 80 ℃, standing for a period of time, and pouring out supernatant to obtain a metal organic framework-coated nano silver composite material;
s3, preparing the antibacterial conductive master batch:
the metal organic framework is wrapped with the nano-silver composite material and the high-density polyethylene material according to the weight ratio of 1: 250, and preparing the antibacterial conductive master batch by extrusion;
s4, preparing a nano-silver modified water supply pipe wrapped by a metal organic framework:
mixing the antibacterial conductive master batch obtained in the step S3 with the color master batch and the high-density polyethylene material according to the weight ratio of 1: 1: 5, mixing, and extruding and molding at the temperature of 190 ℃ to prepare the nano-silver modified water supply pipe wrapped by the metal organic framework.
3. The preparation method of the metal organic framework coated nano-silver modified water supply pipe according to claim 2, characterized in that: in the steps S1 and S2, the reaction kettle is a stainless steel high-pressure reaction kettle with a polytetrafluoroethylene lining.
4. The preparation method of the metal organic framework coated nano-silver modified water supply pipe according to claim 2, characterized in that: in step S2, the silver content of the silver nitrate is 60% or more.
5. The preparation method of the metal organic framework coated nano-silver modified water supply pipe according to claim 2, characterized in that: in the step S1, the metal salt is any one of zinc nitrate, copper nitrate, and cobalt nitrate.
6. The preparation method of the metal organic framework coated nano-silver modified water supply pipe according to claim 2, characterized in that: in the step S1, the organic ligand is any one of methylimidazole and terephthalic acid.
7. The preparation method of the metal organic framework coated nano-silver modified water supply pipe according to claim 2, characterized in that: in the step S1, the organic solvent is any one of methanol and N, N-dimethylformamide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110586514.XA CN113278214A (en) | 2021-05-27 | 2021-05-27 | Nano-silver modified water supply pipe wrapped by metal organic framework and preparation method thereof |
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| CN202110586514.XA CN113278214A (en) | 2021-05-27 | 2021-05-27 | Nano-silver modified water supply pipe wrapped by metal organic framework and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536094A (en) * | 2022-12-29 | 2023-08-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Lubricating oil containing nano silver/metal organic framework additive and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188746A (en) * | 2016-07-14 | 2016-12-07 | 大禹节水（天津）有限公司 | A kind of polyethylene water-feeding pipes with anti-microbial property and preparation method thereof |
| CN109820000A (en) * | 2019-02-19 | 2019-05-31 | 太原理工大学 | A kind of MOFs carrying nano silver anti-biotic material and preparation method thereof |
-
2021
- 2021-05-27 CN CN202110586514.XA patent/CN113278214A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188746A (en) * | 2016-07-14 | 2016-12-07 | 大禹节水（天津）有限公司 | A kind of polyethylene water-feeding pipes with anti-microbial property and preparation method thereof |
| CN109820000A (en) * | 2019-02-19 | 2019-05-31 | 太原理工大学 | A kind of MOFs carrying nano silver anti-biotic material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536094A (en) * | 2022-12-29 | 2023-08-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Lubricating oil containing nano silver/metal organic framework additive and preparation method thereof |
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