CN114921147A - Recyclable antirust agent, preparation method thereof and recycling method thereof - Google Patents
Recyclable antirust agent, preparation method thereof and recycling method thereof Download PDFInfo
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- CN114921147A CN114921147A CN202210516848.4A CN202210516848A CN114921147A CN 114921147 A CN114921147 A CN 114921147A CN 202210516848 A CN202210516848 A CN 202210516848A CN 114921147 A CN114921147 A CN 114921147A
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- Prior art keywords
- recyclable
- antirust agent
- rust inhibitor
- initiator
- polystyrene
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- 239000013556 antirust agent Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004064 recycling Methods 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title abstract description 21
- 239000004793 Polystyrene Substances 0.000 claims abstract description 40
- 229920002223 polystyrene Polymers 0.000 claims abstract description 40
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000003999 initiator Substances 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 11
- 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 43
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 26
- 229910017604 nitric acid Inorganic materials 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 25
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 24
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 23
- 239000012286 potassium permanganate Substances 0.000 claims description 23
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 239000003112 inhibitor Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical compound CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 claims description 4
- 239000012934 organic peroxide initiator Substances 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 229910052723 transition metal Inorganic materials 0.000 claims description 4
- -1 transition metal salt Chemical class 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 23
- 235000019198 oils Nutrition 0.000 description 23
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 235000013410 fast food Nutrition 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 229920006327 polystyrene foam Polymers 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 description 1
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- SCPWMSBAGXEGPW-UHFFFAOYSA-N dodecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OC)(OC)OC SCPWMSBAGXEGPW-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000001525 mentha piperita l. herb oil Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000019477 peppermint oil Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229940057950 sodium laureth sulfate Drugs 0.000 description 1
- 235000019830 sodium polyphosphate Nutrition 0.000 description 1
- SXHLENDCVBIJFO-UHFFFAOYSA-M sodium;2-[2-(2-dodecoxyethoxy)ethoxy]ethyl sulfate Chemical compound [Na+].CCCCCCCCCCCCOCCOCCOCCOS([O-])(=O)=O SXHLENDCVBIJFO-UHFFFAOYSA-M 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/003—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
- C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention belongs to the technical field of antirust agents, and particularly relates to a recyclable antirust agent, a preparation method thereof and a recycling method thereof. The invention provides a recyclable antirust agent, which comprises the following raw materials, by weight, 80-120 parts of polystyrene; 30-60 parts of a modifier; 10-15 parts of an initiator; 1-5 parts of a catalyst; 10-20 parts of acid liquor. The antirust agent is prepared from polystyrene, a modifier, an initiator, a catalyst and an acid solution in specific parts, has the advantage of being recyclable and can reduce the pollution to the environment.
Description
Technical Field
The invention belongs to the technical field of antirust agents, and particularly relates to a recyclable antirust agent, a preparation method thereof and a recycling method thereof.
Background
The polystyrene has the characteristics of light weight, firmness, shock absorption, low moisture absorption, easy molding, good water resistance, heat insulation, low price and the like, is widely applied to the fields of packaging, heat preservation, water resistance, heat insulation, shock absorption and the like, is one of the most widely applied plastics in the world at present, and can be applied to the aspects of shock-proof packaging of electric appliances, instruments and meters, artware and other easily damaged valuable articles, packaging of fast food and the like. At present, most of the polystyrene foam fast food utensils used in China are polystyrene foam fast food utensils, and a large amount of waste foam fast food utensils fall on places along traffic lines, rivers and lakes, tourist attractions, avenues and alleyways, and the like to form well-known white pollution.
The prior art discloses a water-based antirust agent for surface treatment of a long-acting antistatic dustproof stone crusher, which is characterized by being prepared from the following raw materials in parts by weight: 37-38 parts of phytic acid, 8-11 parts of polyaspartic acid, 6-8 parts of waste polystyrene foam plastic, 2-3 parts of sodium polyphosphate, 3-4 parts of imidazoline, 1.3-1.6 parts of dodecyl trimethoxy silane, 2-4 parts of peppermint oil, 1-2 parts of diatomite, 1.7-1.9 parts of sodium laureth sulfate, 4.4-4.8 parts of polyethylene glycol, 5.4-5.8 parts of polyvinyl alcohol and the balance of deionized water.
However, the antirust agent in the prior art cannot be reused after being used, so that great resource waste is caused, and the environment is polluted.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the antirust agent in the prior art cannot be reused after being used, so that the resource waste is great, and the environment is polluted, thereby providing a recyclable antirust agent, and a preparation method and a recycling method thereof.
Therefore, the invention provides the following technical scheme,
the invention provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
optionally, the modifier is maleic anhydride, methacrylic acid, drying oil.
Optionally, the initiator is one of an organic peroxide initiator, an inorganic peroxide initiator and an azo initiator.
Optionally, the organic peroxide initiator is one or more of benzoyl peroxide, di-tert-butyl peroxide and tert-butyl peroxybenzoate;
and/or the inorganic peroxide initiator is one or more of potassium persulfate, sodium persulfate and ammonium persulfate;
and/or the azo initiator is azobisisobutyronitrile.
Optionally, the catalyst is a transition metal salt;
and/or the transition metal salt is one of potassium permanganate, potassium manganate and potassium dichromate.
Optionally, the acid solution is one of nitric acid and hydrochloric acid;
the concentration of the nitric acid and the hydrochloric acid is 98%.
Optionally, the antirust agent comprises the following raw materials in parts by weight,
the invention provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting polystyrene, acid liquor and a catalyst under a closed condition to obtain a first solution;
s2: and cooling the first solution to room temperature, adding a modifier, and then adding an initiator for reaction to obtain the recyclable antirust agent.
Optionally, the temperature of the reaction in step S1 is 60-90 ℃;
and/or the reaction time in the step S1 is 1-3 h;
and/or the pressure of the closed condition in the step S1 is 2-2.4 MPa.
And/or the reaction time in the step S2 is 20-60 min.
The invention also provides a recycling method of the recyclable antirust agent or the antirust agent prepared by the preparation method, which comprises the following steps,
after the antirust layer is scraped from the metal surface, the antirust layer is dissolved in acid liquor, and after polystyrene and a catalyst are added, metal rust prevention can be carried out again.
The technical proposal provided by the invention has the advantages that,
1. the invention provides a recyclable antirust agent, which comprises the following raw materials, by weight, 80-120 parts of polystyrene; 30-60 parts of a modifier; 10-15 parts of an initiator; 1-5 parts of a catalyst; 10-20 parts of acid liquor. The antirust agent is prepared from polystyrene, a modifier, an initiator, a catalyst and an acid solution in specific parts, has the advantage of being recyclable and can reduce the pollution to the environment.
2. The invention provides a preparation method of the recyclable antirust agent, which comprises the following steps of S1: reacting polystyrene, acid liquor and a catalyst under a closed condition to obtain a first solution; s2: and cooling the first solution to room temperature, adding a modifier, and then adding an initiator for reaction to obtain the recyclable antirust agent. The preparation method of the invention makes maleic anhydride and polystyrene generate graft reaction, a certain amount of hydrophilic carboxyl is transferred on polystyrene molecules to endow base materials with hydrophilicity, the added methacrylic acid enhances the cohesive strength of the coating film, the addition of the drying oil not only enables the coating film to have good drying performance and flexibility, but also enables unsaturated bonds on the coating film to generate conjugation reaction with the maleic anhydride, so that a certain amount of hydrophilic carboxyl is introduced on hydrophobic drying oil molecules to improve the hydrophilicity of the whole system.
3. The invention also provides a recycling method of the antirust agent, which comprises the following steps of scraping the antirust layer from the metal surface, dissolving the antirust layer in acid liquor, adding polystyrene and a catalyst, and performing metal rust prevention again. The recycling method provided by the invention further utilizes the characteristics of the original antirust agent, and can achieve the antirust effect which is not much different from the original antirust effect only by adding the polystyrene, the catalyst and the acid solution.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
The examples do not show the specific experimental steps or conditions, and can be performed according to the conventional experimental steps described in the literature in the field. The reagents or instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
Example 1
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 10kg of drying oil, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride, 10kg of methacrylic acid and 10kg of drying oil, and then adding 15kg of azobisisobutyronitrile for reacting for 50min to obtain the recyclable antirust agent.
Example 2
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
80kg of polystyrene, 30kg of maleic anhydride, 10kg of methacrylic acid, 15kg of drying oil, 10kg of azobisisobutyronitrile, 5kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 80kg of polystyrene, 20kg of 98% nitric acid and 5kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 30kg of maleic anhydride, 10kg of methacrylic acid and 15kg of drying oil, and then adding 10kg of azobisisobutyronitrile to react for 50min to obtain the recyclable antirust agent.
Example 3
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
120kg of polystyrene, 15kg of maleic anhydride, 15kg of methacrylic acid, 5kg of drying oil, 15kg of azobisisobutyronitrile, 1kg of potassium permanganate and 10kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 120kg of polystyrene, 10kg of 98% nitric acid and 1kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 15kg of maleic anhydride, 15kg of methacrylic acid and 5kg of drying oil, and then adding 15kg of azobisisobutyronitrile to react for 50min to obtain the recyclable antirust agent.
Example 4
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 10kg of drying oil, 15kg of potassium persulfate, 3kg of potassium manganate and 20kg of hydrochloric acid with the concentration of 98%.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of hydrochloric acid with the concentration of 98% and 3kg of potassium manganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride, 10kg of methacrylic acid and 10kg of drying oil, and then adding 15kg of potassium persulfate to react for 50min to obtain the recyclable antirust agent.
Example 5
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 10kg of drying oil, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 90 ℃ for 1h to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride, 10kg of methacrylic acid and 10kg of drying oil, and then adding 15kg of azobisisobutyronitrile to react for 60min to obtain the recyclable antirust agent.
Example 6
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 10kg of drying oil, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2.4MPa and the temperature of 60 ℃ for 3 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride, 10kg of methacrylic acid and 10kg of drying oil, and then adding 15kg of azobisisobutyronitrile to react for 20min to obtain the recyclable antirust agent.
Example 7
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 15kg of methacrylic acid, 15kg of drying oil, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 10kg of methacrylic acid and 10kg of drying oil, and then adding 15kg of azobisisobutyronitrile to react for 50min to obtain the recyclable antirust agent.
Example 8
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of drying oil, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride and 10kg of drying oil, and then adding 15kg of azobisisobutyronitrile for reacting for 50min to obtain the recyclable antirust.
Example 9
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride and 10kg of methacrylic acid, and then adding 15kg of azobisisobutyronitrile to react for 50min to obtain the recyclable antirust agent.
Comparative example 1
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 15kg of azobisisobutyronitrile, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, and adding 15kg of azodiisobutyronitrile to react for 50min to obtain the recyclable antirust agent.
Comparative example 2
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 10kg of drying oil, 3kg of potassium permanganate and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene, 20kg of 98% nitric acid and 3kg of potassium permanganate in a closed space with the pressure of 2MPa and the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, and then adding 20kg of maleic anhydride, 10kg of methacrylic acid and 10kg of drying oil to obtain the recyclable antirust agent.
Comparative example 3
The embodiment provides a recyclable antirust agent, which comprises the following raw materials in parts by weight,
100kg of polystyrene, 20kg of maleic anhydride, 10kg of methacrylic acid, 10kg of drying oil, 15kg of azobisisobutyronitrile and 20kg of 98% nitric acid.
The embodiment also provides a preparation method of the recyclable antirust agent, which comprises the following steps,
s1: reacting 100kg of polystyrene and 20kg of nitric acid with the concentration of 98% in a closed space at the temperature of 80 ℃ for 2 hours to obtain a first solution;
s2: and cooling the first solution to room temperature, adding 20kg of maleic anhydride, 10kg of methacrylic acid and 10kg of drying oil, and then adding 15kg of azobisisobutyronitrile to react for 50min to obtain the recyclable antirust agent.
Test example 1
The rust inhibitors prepared in examples 1 to 9 and comparative examples 1 to 3 were subjected to a rust inhibitive performance test,
the method for testing the antirust performance comprises the following steps: 11 pieces of steel plates with the same size and Q235B material were soaked in the rust inhibitors prepared in examples 1-9 and comparative examples 1-3 for 5min, and then the steel plates were corroded by accelerated corrosion in a laboratory, and the time for each steel plate to start corrosion was recorded.
The method for accelerating the corrosion in the laboratory comprises the following steps: the etching is carried out by an accelerated etching method disclosed in patent document No. CN 1235031C.
The steel plate corrosion initiation time standard is as follows: the apparent rusting on the steel plate is the time for the steel plate to start to corrode
The specific results are as follows:
as can be seen from the table above, the antirust agent added with the modifier has great antirust performance, while the antirust agent without the modifier has common antirust effect, and the antirust agent without the catalyst or the initiator has the worst effect.
Test example 2
The rust inhibitors prepared in examples 1 to 9 and comparative examples 1 to 3 were subjected to a recyclability test,
the test method comprises the following steps: 11 steel plates with the same size and made of Q235B materials are taken and soaked in the antirust agents prepared in the examples 1-9 and the comparative examples 1-3 for 5min respectively, then the steel plates are corroded by adopting a laboratory accelerated corrosion method, after obvious rusting appears on the steel plates, the antirust layers are scraped off, then the scraped antirust layers are added into hydrochloric acid with the concentration of 98%, polystyrene and potassium permanganate are added, the corresponding steel plates are continuously soaked in the antirust layers, and the antirust effects are tested again.
The method for testing rust inhibitive effect was performed by the test method in test example 1.
The recovery ratio was calculated by (time of corrosion start of recovered steel sheet ÷ time of corrosion start of first steel sheet) × 100%
The test results were as follows:
as can be seen from the table above, the antirust agent prepared by the invention, polystyrene, catalyst and acid liquor, can achieve the antirust effect which is not much different from the original antirust effect.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (10)
1. The recyclable antirust agent is characterized by comprising the following raw materials in parts by weight,
2. the recyclable rust inhibitor according to claim 1, wherein the modifier is maleic anhydride, methacrylic acid, drying oil.
3. The recyclable rust inhibitor according to claim 1 or 2, wherein the initiator is one of an organic peroxide initiator, an inorganic peroxide initiator, and an azo initiator.
4. The recyclable rust inhibitor according to claim 3, wherein the organic peroxide initiator is one or more of benzoyl peroxide, di-t-butyl peroxide, t-butyl peroxybenzoate;
and/or the inorganic peroxide initiator is one or more of potassium persulfate, sodium persulfate and ammonium persulfate;
and/or the azo initiator is azobisisobutyronitrile.
5. The recyclable rust inhibitor according to claim 1, wherein the catalyst is a transition metal salt;
and/or the transition metal salt is one of potassium permanganate, potassium manganate and potassium dichromate.
6. The recyclable rust inhibitor according to claim 1, wherein the acid solution is one of nitric acid and hydrochloric acid;
the concentration of the nitric acid and the hydrochloric acid is 98%.
7. The recyclable rust inhibitor according to any one of claims 1 to 6, comprising the following parts by weight of raw materials,
8. a method for preparing the recyclable rust inhibitor according to any one of claims 1 to 7, comprising the steps of,
s1: reacting polystyrene, acid liquor and a catalyst under a closed condition to obtain a first solution;
s2: and cooling the first solution to room temperature, adding a modifier, and then adding an initiator for reaction to obtain the recyclable antirust agent.
9. The method for preparing the recyclable rust inhibitor according to claim 8, wherein the temperature of the reaction in step S1 is 60-90 ℃;
and/or the reaction time in the step S1 is 1-3 h;
and/or the pressure of the closed condition in the step S1 is 2-2.4 MPa.
And/or the reaction time in the step S2 is 20-60 min.
10. A recycling method of the recyclable rust inhibitor according to any one of claims 1 to 7 or the rust inhibitor produced by the production method according to claim 8 or 9, comprising the steps of,
after the antirust layer is scraped from the metal surface, the antirust layer is dissolved in acid liquor, and after polystyrene and a catalyst are added, metal rust prevention can be carried out again.
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