CN112266530A - Antirust film and preparation method thereof - Google Patents
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- CN112266530A CN112266530A CN202011174898.6A CN202011174898A CN112266530A CN 112266530 A CN112266530 A CN 112266530A CN 202011174898 A CN202011174898 A CN 202011174898A CN 112266530 A CN112266530 A CN 112266530A
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- C08J5/18—Manufacture of films or sheets
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2487/00—Characterised by the use of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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Abstract
The invention discloses an antirust film which comprises, by weight, 0.5-5% of an organic antirust agent @ nano MOFs antirust component, 30-45% of high-pressure polyethylene, 47-66.5% of linear low-density polyethylene and 3% of an auxiliary additive, wherein the auxiliary additive comprises white oil, a coupling agent and polyethylene wax. The invention has the advantages that: the preparation process is simple and efficient, and the prepared antirust film antirust agent is slow in release, long in release time, stable in release and good in antirust and anticorrosion effects.
Description
Technical Field
The invention relates to the technical field of antirust films, in particular to an antirust film and a preparation method thereof.
Background
With the development of science and technology, the utilization rate of metal in industrial production is higher and higher, but the metal inevitably has the problems of rusting and the like in the use process, can directly or indirectly cause various serious losses, seriously influences the orderly progress of industrial production, and can threaten the life and property safety of people. Due to the occurrence of problems such as rusting and the like, the service life of various machines and building facilities is greatly discounted, and unnecessary secondary investment is increased; meanwhile, a plurality of potential safety hazards are generated in the using process of the equipment. Therefore, the rust prevention problem is a great problem related to the production and life of people and the development of social economy.
Metal corrosion is a physicochemical action that occurs in metals and surrounding corrosive media, so protection against metal corrosion is considered primarily from both the metallic material itself and the media. (1) By an alloy technology, different metal materials are selected to form an alloy or other elements are added into the metal materials to improve the corrosion resistance of the materials; for example, nickel, chromium, manganese, molybdenum and other elements are added to plain carbon steel in different proportions to form stainless steel alloys. (2) By using the protection of the corrosion inhibitor, the gas phase corrosion inhibitor can automatically volatilize particles with corrosion inhibition function at normal temperature, and the particles are diffused to the metal surface and cover the metal surface or are dissolved in electrolyte on the metal surface to inhibit the corrosion of the metal, so that all parts and even gaps on the surface and inside of a metal product can be protected [ Tengfei, Hu steel, corrosion science and protection technology, 2014,26(4): 360-charge 364 ]. (3) Electrochemical protection, electrochemical protection refers to a method of protecting a metal by polarizing a metal member to reach an etch-free region or a passivation region. Electrochemical protection can be generally divided into anodic protection and cathodic protection [ Song Hi, Guo faithful, Fan lovers, etc.. Corrosion science and protection technologies, 2004,16(1):24-28 ]. (4) The most common and important method for metal rust prevention is to coat the metal surface with a coating layer. Its most essential function is to isolate the metal from the external environment to prevent the associated corrosion reactions from occurring. (5) The high-molecular protective covering layer is formed by coating the surface of metal with a high-barrier plastic film, the high-barrier plastic packaging film utilizes the excellent barrier property of the high-barrier plastic film to prevent corrosive media from entering a package, so that the corrosion of metal products can be effectively prevented, the transportation problem of precious metal equipment in a severe environment (such as marine transportation) can be solved, and the metal products can be effectively protected on the premise of not influencing the appearance properties of the products [ Guji, Dongjing packaging engineering, 2010,31(5): 112-.
Although the gas phase rust-proof film has been developed to a certain extent, the rust-proof films used in the market at present have the problems of short release time of the rust-proof agent, poor rust-proof effect and the like.
Disclosure of Invention
The first purpose of the invention is to provide a rust-preventive film which has slow release of a rust-preventive agent, long release time of the rust-preventive agent and good rust-preventive effect.
In order to achieve the purpose, the invention adopts the following technical scheme: the antirust film comprises, by weight, 0.5-5% of an organic antirust agent @ nano MOFs antirust component, 30-45% of high-pressure polyethylene, 47-66.5% of linear low-density polyethylene and 3% of an auxiliary additive, wherein the auxiliary additive comprises white oil, a coupling agent and polyethylene wax.
Further, the above antirust film, wherein: the organic antirust agent @ nano MOFs antirust component consists of 30-80% of organic antirust agent and 20-70% of nano MOFs in weight ratio.
Further, the above antirust film, wherein: the organic antirust agent @ nano MOFs antirust component is prepared by the following method: adding the nano MOFs into the organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying.
Further, the above antirust film, wherein: the organic antirust agent in the organic antirust agent @ nano MOFs antirust component is one or more of benzotriazole, methyl benzotriazole sodium salt and benzotriazole sodium salt, the nano MOFs is MOF with antibacterial performance such as ZIF-8, and the nano MOFs has a nano size of 25-100 nm.
The second purpose of the invention is to provide a preparation method of the antirust film, which has simple and efficient preparation process.
In order to achieve the purpose, the invention adopts the following technical scheme: a preparation method of an antirust film comprises the following steps:
step (1): the preparation method of the organic antirust agent @ nano MOFs specifically comprises the following steps: adding the nano MOFs into an organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying to obtain an organic antirust agent @ nano MOFs;
step (2): the preparation method of the high-pressure polyethylene/linear low-density polyethylene master batch comprises the following specific operations: adding high-pressure polyethylene, linear low-density polyethylene, industrial white oil, a coupling agent and polyethylene wax into a high-speed mixer, and uniformly mixing to obtain a high-pressure polyethylene/linear low-density polyethylene master batch;
and (3): respectively adding the organic antirust agent @ nano MOFs and the high-pressure polyethylene/linear low-density polyethylene master batch into a double-screw extruder for extrusion granulation, wherein the set temperature of each section of the double-screw extruder is as follows: a first stage: 173 ℃, second stage: 171 ℃ and three sections: 167 ℃, four stages: 172 ℃, five stages: 170 ℃, head: 175 ℃; drying the obtained granules at a temperature of not higher than 60 ℃;
and (4): adding the organic antirust agent @ nano MOFs granules obtained in the step (3) and the high-pressure polyethylene/linear low-density polyethylene plastic granules into a low-speed mixer, and uniformly mixing;
and (5): and (4) adding the mixed material particles obtained in the step (4) into a film blowing machine for blow molding to form a film.
Through the implementation of the technical scheme, the invention has the beneficial effects that: the preparation process is simple and efficient, and the prepared antirust film antirust agent is slow in release, long in release time, stable in release and good in antirust and anticorrosion effects.
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.
Detailed description of the preferred embodiment
An antirust film is composed of 0.5% of organic antirust agent @ nano MOFs antirust component, 30% of high-pressure polyethylene, 66.5% of linear low-density polyethylene and 3% of auxiliary additive according to the weight ratio, wherein the auxiliary additive is composed of white oil, a coupling agent and polyethylene wax; the organic antirust agent @ nano MOFs antirust component consists of 30% of organic antirust agent and 70% of nano MOFs in weight ratio; the organic antirust agent in the organic antirust agent @ nano MOFs antirust component is benzotriazole, the nano MOFs are MOFs with antibacterial performance such as ZIF-8, and the nano size of the nano MOFs is 25-100 nm; the organic antirust agent @ nano MOFs antirust component is prepared by the following method: adding the nano MOFs into the organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying.
A preparation method of an antirust film comprises the following steps:
step (1): the preparation method of the organic antirust agent @ nano MOFs specifically comprises the following steps: adding 0.35Kg of nano MOFs into 0.2Kg of organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying to obtain 0.5Kg of organic antirust agent @ nano MOFs;
step (2): the preparation method of the high-pressure polyethylene/linear low-density polyethylene master batch comprises the following specific operations: adding 30Kg of high-pressure polyethylene, 66.5Kg of linear low-density polyethylene, 1Kg of industrial white oil, 1Kg of coupling agent and 1Kg of polyethylene wax into a high-speed mixer, and uniformly mixing to obtain 99.5Kg of master batch of high-pressure polyethylene/linear low-density polyethylene;
and (3): respectively adding 0.5Kg of organic rust inhibitor @ nano MOFs and 99.5Kg of high-pressure polyethylene/linear low-density polyethylene master batch into a double-screw extruder for extrusion granulation, wherein the set temperature of each section of the double-screw extruder is as follows: a first stage: 173 ℃, second stage: 171 ℃ and three sections: 167 ℃, four stages: 172 ℃, five stages: 170 ℃, head: 175 ℃; drying the obtained granules at a temperature of not higher than 60 ℃;
and (4): adding 0.5Kg of organic antirust agent @ nano MOFs granules and 99.5Kg of high-pressure polyethylene/linear low-density polyethylene plastic granules into a low-speed mixer, and uniformly mixing;
and (5): and (4) adding the mixed material particles obtained in the step (4) into a film blowing machine for blow molding to form a film.
The average corrosion rate of the film on iron was 0.06% according to standard astm b-117 salt spray test.
Specific example II
An antirust film comprises 3% of an organic antirust agent @ nano MOFs antirust component, 40% of high-pressure polyethylene, 54% of linear low-density polyethylene and 3% of an auxiliary additive in a weight ratio, wherein the auxiliary additive comprises white oil, a coupling agent and polyethylene wax; the organic antirust agent @ nano MOFs antirust component consists of 50% of organic antirust agent and 50% of nano MOFs in weight ratio; the organic antirust agent in the organic antirust agent @ nano MOFs antirust component is methylbenzotriazole, the nano MOFs are MOFs with antibacterial performance such as ZIF-8, and the nano size of the nano MOFs is 25-100 nm; the organic antirust agent @ nano MOFs antirust component is prepared by the following method: adding the nano MOFs into the organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying.
A preparation method of an antirust film comprises the following steps:
step (1): the preparation method of the organic antirust agent @ nano MOFs specifically comprises the following steps: adding 1.5Kg of nano MOFs into 1.55 organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying to obtain 3Kg of organic antirust agent @ nano MOFs;
step (2): the preparation method of the high-pressure polyethylene/linear low-density polyethylene master batch comprises the following specific operations: adding 40Kg of high-pressure polyethylene, 54Kg of linear low-density polyethylene, 1Kg of industrial white oil, 1Kg of coupling agent and 1Kg of polyethylene wax into a high-speed mixer, and uniformly mixing to obtain 97Kg of high-pressure polyethylene/linear low-density polyethylene master batch;
and (3): 3Kg of organic rust inhibitor @ nano MOFs and 97Kg of high-pressure polyethylene/linear low-density polyethylene master batch are respectively added into a double-screw extruder for extrusion granulation, and the set temperature of each section of the double-screw extruder is as follows: a first stage: 173 ℃, second stage: 171 ℃ and three sections: 167 ℃, four stages: 172 ℃, five stages: 170 ℃, head: 175 ℃; drying the obtained granules at a temperature of not higher than 60 ℃;
and (4): adding 3Kg of organic antirust agent @ nano MOFs granules obtained in the step (3) and 97Kg of high-pressure polyethylene/linear low-density polyethylene plastic granules into a low-speed mixer, and uniformly mixing;
and (5): and (4) adding the mixed material particles obtained in the step (4) into a film blowing machine for blow molding to form a film.
The iron average corrosion rate of the film was 0.04% according to standard astm b-117 salt spray test.
Detailed description of the preferred embodiment
An antirust film comprises 5% of an organic antirust agent @ nano MOFs antirust component, 45% of high-pressure polyethylene, 47% of linear low-density polyethylene and 3% of an auxiliary additive in a weight ratio, wherein the auxiliary additive comprises white oil, a coupling agent and polyethylene wax; the organic antirust agent @ nano MOFs antirust component consists of 80% of organic antirust agent and 20% of nano MOFs in weight ratio; the organic antirust agent in the organic antirust agent @ nano MOFs antirust component is methyl benzotriazole sodium salt and benzotriazole sodium salt, the nano MOFs is MOF with antibacterial performance such as ZIF-8, and the nano size of the nano MOFs is 25-100 nm; the organic antirust agent @ nano MOFs antirust component is prepared by the following method: adding the nano MOFs into the organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying.
A preparation method of an antirust film comprises the following steps:
step (1): the preparation method of the organic antirust agent @ nano MOFs specifically comprises the following steps: adding 1Kg of nano MOFs into 4.1Kg of organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying to obtain 5Kg of organic antirust agent @ nano MOFs;
step (2): the preparation method of the high-pressure polyethylene/linear low-density polyethylene master batch comprises the following specific operations: adding 45Kg of high-pressure polyethylene, 47Kg of linear low-density polyethylene, 1Kg of industrial white oil, 1Kg of coupling agent and 1Kg of polyethylene wax into a high-speed mixer, and uniformly mixing to obtain 95Kg of high-pressure polyethylene/linear low-density polyethylene master batch;
and (3): respectively adding 5Kg of organic rust inhibitor @ nano MOFs and 95Kg of high-pressure polyethylene/linear low-density polyethylene master batch into a double-screw extruder for extrusion granulation, wherein the set temperature of each section of the double-screw extruder is as follows: a first stage: 173 ℃, second stage: 171 ℃ and three sections: 167 ℃, four stages: 172 ℃, five stages: 170 ℃, head: 175 ℃; drying the obtained granules at a temperature of not higher than 60 ℃;
and (4): adding 5Kg of organic antirust agent @ nano MOFs granules obtained in the step (3) and 95Kg of high-pressure polyethylene/linear low-density polyethylene plastic granules into a low-speed mixer, and uniformly mixing;
and (5): and (4) adding the mixed material particles obtained in the step (4) into a film blowing machine for blow molding to form a film.
The average corrosion rate of the film on iron was 0.09% according to standard astm b-117 salt spray test.
The invention has the advantages that: the preparation process is simple and efficient, and the prepared antirust film antirust agent is slow in release, long in release time, stable in release and good in antirust and anticorrosion effects.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made in accordance with the technical spirit of the present invention are within the scope of the present invention as claimed.
Claims (5)
1. An antirust film, characterized in that: the antirust film comprises, by weight, 0.5-5% of an organic antirust agent @ nano MOFs antirust component, 30-45% of high-pressure polyethylene, 47-66.5% of linear low-density polyethylene and 3% of an auxiliary additive, wherein the auxiliary additive comprises white oil, a coupling agent and polyethylene wax.
2. The rust inhibitive film according to claim 1, wherein: the organic antirust agent @ nano MOFs antirust component consists of 30-80% of organic antirust agent and 20-70% of nano MOFs in weight ratio.
3. The rust inhibitive film according to claim 1, wherein: the organic antirust agent @ nano MOFs antirust component is prepared by the following method: adding the nano MOFs into the organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying.
4. The rust inhibitive film according to claim 1, wherein: the organic antirust agent in the organic antirust agent @ nano MOFs antirust component is one or more of benzotriazole, methyl benzotriazole sodium salt and benzotriazole sodium salt, the nano MOFs is MOF with antibacterial performance such as ZIF-8, and the nano MOFs has a nano size of 25-100 nm.
5. A method for producing a rust inhibitive film according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
step (1): the preparation method of the organic antirust agent @ nano MOFs specifically comprises the following steps: adding the nano MOFs into an organic antirust agent solution, stirring at 30 ℃ for 3 hours for loading, filtering and drying to obtain an organic antirust agent @ nano MOFs;
step (2): the preparation method of the high-pressure polyethylene/linear low-density polyethylene master batch comprises the following specific operations: adding high-pressure polyethylene, linear low-density polyethylene, industrial white oil, a coupling agent and polyethylene wax into a high-speed mixer, and uniformly mixing to obtain a high-pressure polyethylene/linear low-density polyethylene master batch;
and (3): respectively adding the organic antirust agent @ nano MOFs and the high-pressure polyethylene/linear low-density polyethylene master batch into a double-screw extruder for extrusion granulation, wherein the set temperature of each section of the double-screw extruder is as follows: a first stage: 173 ℃, second stage: 171 ℃ and three sections: 167 ℃, four stages: 172 ℃, five stages: 170 ℃, head: 175 ℃; drying the obtained granules at a temperature of not higher than 60 ℃;
and (4): adding the organic antirust agent @ nano MOFs granules obtained in the step (3) and the high-pressure polyethylene/linear low-density polyethylene plastic granules into a low-speed mixer, and uniformly mixing;
and (5): and (4) adding the mixed material particles obtained in the step (4) into a film blowing machine for blow molding to form a film.
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Cited By (5)
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| CN114000152A (en) * | 2021-10-29 | 2022-02-01 | 武汉楚博士科技股份有限公司 | Preparation and application of dynamic response type copper corrosion inhibitor based on metal organic framework structure |
| CN114481136A (en) * | 2022-01-11 | 2022-05-13 | 内江师范学院 | Vapor phase corrosion inhibitor based on metal organic framework material and preparation method thereof |
| CN115073941A (en) * | 2022-04-18 | 2022-09-20 | 浙江大学温州研究院 | Preparation method of metal anticorrosive ceramic coating based on slow-release self-repair microspheres |
| CN115073956A (en) * | 2022-04-18 | 2022-09-20 | 浙江大学温州研究院 | Preparation method of corrosion inhibitor loaded BTA @ ZIF-8 composite powder |
| CN115353763A (en) * | 2022-08-22 | 2022-11-18 | 浙江大学温州研究院 | Preparation method of corrosion inhibitor loaded BTA @ ZIF-8/BN-OH composite powder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000152A (en) * | 2021-10-29 | 2022-02-01 | 武汉楚博士科技股份有限公司 | Preparation and application of dynamic response type copper corrosion inhibitor based on metal organic framework structure |
| CN114000152B (en) * | 2021-10-29 | 2023-07-25 | 武汉楚博士科技股份有限公司 | Preparation and application of dynamic response type copper corrosion inhibitor based on metal organic framework structure |
| CN114481136A (en) * | 2022-01-11 | 2022-05-13 | 内江师范学院 | Vapor phase corrosion inhibitor based on metal organic framework material and preparation method thereof |
| CN114481136B (en) * | 2022-01-11 | 2023-08-22 | 内江师范学院 | Vapor phase corrosion inhibitor based on metal organic framework material and preparation method thereof |
| CN115073941A (en) * | 2022-04-18 | 2022-09-20 | 浙江大学温州研究院 | Preparation method of metal anticorrosive ceramic coating based on slow-release self-repair microspheres |
| CN115073956A (en) * | 2022-04-18 | 2022-09-20 | 浙江大学温州研究院 | Preparation method of corrosion inhibitor loaded BTA @ ZIF-8 composite powder |
| CN115353763A (en) * | 2022-08-22 | 2022-11-18 | 浙江大学温州研究院 | Preparation method of corrosion inhibitor loaded BTA @ ZIF-8/BN-OH composite powder |
| CN115353763B (en) * | 2022-08-22 | 2023-11-14 | 浙江大学温州研究院 | Preparation method of corrosion inhibitor-loaded BTA@ZIF-8/BN-OH composite powder |
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