WO2013026331A1 - 一种rtv防污闪涂料及其制备方法 - Google Patents
一种rtv防污闪涂料及其制备方法 Download PDFInfo
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- WO2013026331A1 WO2013026331A1 PCT/CN2012/078286 CN2012078286W WO2013026331A1 WO 2013026331 A1 WO2013026331 A1 WO 2013026331A1 CN 2012078286 W CN2012078286 W CN 2012078286W WO 2013026331 A1 WO2013026331 A1 WO 2013026331A1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
- H01B3/465—Silicone oils
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
-
- 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
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/045—Polysiloxanes containing less than 25 silicon atoms
-
- 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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
-
- 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
- C08K2003/2265—Oxides; Hydroxides of metals of iron
Definitions
- the invention relates to an RTV anti-pollution flash paint and a preparation method thereof, and belongs to the technical field of coatings for power transmission and transformation equipment of electric power systems. Background technique
- the object of the present invention is to provide a long-life RTV anti-fouling flash coating for the short service life of the coating agent caused by the rapid release rate of the water repellent in the RTV anti-smudge flash coating.
- the present invention provides an RTV anti-soil flash coating comprising the following components by weight: 100 parts of polydimethylsiloxane, 4-10 parts of reinforcing filler, 0.1-1 part of catalyst, crosslinking agent 1-5 parts, 3-6 parts of water repellent, 1-2 parts of pigment, 1-2 parts of decabromodiphenyl ether, 30-40 parts of toluene;
- the water repellent is a mixture of a substance having the structure shown in Formula 1 and one or more of a small molecular weight silicone oil, dihydroxydiphenylsilane, fluorine-containing silicone oil, and white oil:
- R'-Si is a polysiloxane group or a fluorine-containing siloxane group, and its structure is as shown in Formula 2:
- the reinforcing filler is fumed silica or precipitated silica or the like.
- the catalyst is one or a combination of an organotin compound, an organotin chelate compound, an organotitanium compound, and an organotitanium chelate compound.
- the pigment is any one of iron red or an inert pigment.
- the RTV antifouling flash coating provided by the present invention has the following structure:
- the substance having the structure represented by Formula 1 preferably, in the water repellent, the substance having the structure represented by Formula 1 and a small molecular weight silicone oil, dihydroxydiphenylsilane, fluorine-containing silicone oil and white oil
- the mass ratio of the substance of the formula 1 to the other components of the mixture of one or more of the compounds is from 1:1 to 1:4 (preferably from 1:1 to 1:2).
- the invention also provides a preparation method of the above RTV anti-soil flash coating, which comprises the following steps:
- control test may also be carried out in accordance with the steps included in the above preparation method, except that the water repellent may be changed or not added depending on the test.
- the RTV anti-smudge flash coating provided by the invention has the following beneficial effects compared with the prior art: 1.
- the curing test, the performance test test and the hydrophobic migration aging test show that the mechanical properties, electrical properties, water repellency, water loss and recovery, hydrophobic migration characteristics, etc. of the coating of the RTV anti-smudge flash coating provided by the present invention are all Meet current industry standards.
- the water repellent in the RTV anti-smudge flash coating provided by the present invention is linked to the vulcanized coating of the RTV coating by a temporary chemical bond during the preparation process, and the temporary chemical bond can be broken under the environmental factor during use, and the water repellent is released.
- the specific control release mechanism is as follows:
- the dotted line indicates a dissociable chemical bond, including an ester bond, a Schiff base, and the like.
- crosslinking agent has the following structure:
- the above water repellent is a mixture of a substance having the following structure and a small molecular weight silicone oil in a weight ratio of 1:1:
- R is acetoxy CH 3 COO-
- crosslinking agent has the following structure:
- R is methoxy CH 3 0- ; is ethyl CH 3 CH 2 -.
- the above water repellent is a mixture obtained by mixing a substance having the following structure with dihydroxydiphenylsilane in a weight ratio of 1:1.5:
- R is a methoxy CH 3 0- ;
- -Si is a polysiloxane group or a fluorine-containing siloxane group, and the structure is as follows:
- R 2 is CF 3 -.
- crosslinking agent has the following structure:
- R is a ketoximino MeEtCNO-; is ethyl CH 3 CH 2 -.
- the water repellent is a mixture of a substance having the following structure and a fluorine-containing silicone oil in a weight ratio of 1:2:
- R is a ketoximino group MeEtCNO-;
- W-Si is a polysiloxane group or a fluorine-containing siloxane group, and the structure is as follows:
- n 3 and R 2 is CH 3 -.
- crosslinking agent has the following structure:
- R is an amide group AcMeN-; is ethyl CH 3 CH :
- R is an amide group AcMeN-; -Si is a polysiloxane group or a fluorosilicone group, and the structure is as follows:
- the water repellent is a mixture of a substance having the following structure and a small molecular weight silicone oil and dihydroxydiphenylsilane in a weight ratio of 1:
- R is an amino group C 6 H u NH- ;
- -Si is a polysiloxane group or a fluorine-containing siloxane group, and the structure is as follows:
- crosslinking agent has the following structure:
- the water repellent is a mixture of a substance having the following structure and a small molecular weight silicone oil, dihydroxydiphenylsilane, and fluorine-containing silicone oil in a weight ratio of 1: 1:2:1:
- the RTV antifouling coatings provided in Examples 1-5 can all be prepared in accordance with the preparation methods provided herein.
- the present invention provides an RTV anti-smudge flash coating without a water repellent, an RTV anti-smudge flash coating added to the market existing water repellent, and a different amount of the present invention.
- the RTV anti-fouling flash coatings of the water repellent were respectively subjected to five groups of controlled tests.
- the components of the coating provided in the Control Test 1 include:
- the crosslinking agent has the following structure:
- R is acetoxy CH 3 COO- ; is methyl CH 3 -.
- Curing test Pour the RTV anti-soil flashing paint provided in this control test into a Teflon mold (slot depth 2mm), flatten it, and place the mold in a constant temperature and humidity chamber for vulcanization, wherein the vulcanization temperature is 25 °C. The vulcanization relative humidity is 50%. During the vulcanization process, the dry time and complete curing time of the coating were observed. The thickness after vulcanization was 1.5 mm. The results were as follows: The surface drying time was 45 min (45 min), and the complete curing time was 24 h ( ⁇ 72 h), where the brackets were standard. Requirements, the results show that the test determines that all indicators meet the requirements.
- test piece After the sample is vulcanized, the test piece is obtained. The test piece is tested for appearance, electrical properties, mechanical properties, water repellency (including water repellency, water loss and recovery, and hydrophobic migration) according to standard DL/T627-2004. The results are as follows, with standard requirements in parentheses:
- the cured film of this RTV coating has a smooth, smooth appearance, no bubbles, no skin, no cracking; tear strength is 8.21kN/m (>3kN/m), and shear strength is 2MPa ( >0.8MPa ) ;
- the dielectric strength is 21.26kV/mm ( > 18kV/mm);
- the hydrophobic HC classification value is Grade 1 (Level 1-2); the hydrophobic loss grade value is Grade 4-5 (Level 1-2), which is difficult to recover, and the hydrophobic migration HC classification value is Grade 4-5 (2- Level 3);
- the standardization of the hydration migration aging experiment is not as standard, but it is critical for the life evaluation of RTV coatings.
- the hydration migration aging experiment is carried out by artificial high temperature accelerated experiment, multiple hydration migration aging, and the migration rate of hydrophobic migration agent is evaluated by the number of hydration migration aging experiments and the recovery time of each HC grading value.
- Test procedure According to the hydrophobicity migration test procedure, the diatomaceous earth was uniformly coated on the surface of the test piece with a gray density of 1.0 mg/cm 2 , and after standing at a constant temperature of 80 ° C for 2 hours, the surface water repellency was tested by a spray method. , determine the HC grading value, if it is difficult to recover within 2h, extend the test time until the final recovery HC value is 1-2, the time is extended no more than 8h ; after each water repellency recovery, the test piece is taken out, the surface of the diatomaceous earth is cleaned After drying, re-paint diatomaceous earth, repeat the above test process until the test piece is water-repellent (HC recovery to 1-2). It is difficult to recover at 8h, the number of test times is the final test number, and the time of each recovery. .
- composition of the coating provided in this comparative test was based on the coating provided in Comparative Test 1, and 3 kg of a small molecular weight silicone oil (viscosity 20-100 cp) was added as a water repellent.
- the hydrophobic HC classification value is Grade 1 (Level 1-2); the hydrophobic loss classification value is 1-2 grade (Level 1-2), which is difficult to recover, and the hydrophobic migration HC classification value is 1-2 (2- Grade 3), the results show that the experimental determination of all indicators meet the requirements; ⁇ water migration aging test results: the number of hydration migration aging test is 5 times, the recovery time is 2.5 hours.
- the components of the coating provided in this control test were based on the components of the coating provided in Control Test 1, and a hydrophobic agent having a structure of less than 3 kg was added:
- R is acetoxy CH 3 COO.
- R l -Si is
- n 1 and R 2 is CH 3 -.
- the grading value of drowning HC is 1 (1-2); the grading value of drowning is 1-2 (1-2), which is difficult to recover.
- the grading value of hydrophobic HC is 1-2 (2- Level 3);
- Tear strength 8.21kN/m (>3kN/m), shear strength 2MPa (>0.8MPa); dielectric strength 21.26kV/mm (> 18kV/mm);
- Drowning migration aging test results The number of hydration migration aging tests is 3 times, and the recovery time is infinite.
- composition of the coating provided in this control test is based on the composition of the coating provided in Comparative Test 1, and the addition of 1.5 kg of a small-molecular weight methyl silicone oil (viscosity 20-100 C) and a structure of less than 1.5 kg of water repellent:
- R is acetoxy CH 3 COO.
- R -Si is
- the hydrophobic HC classification value is Grade 1 (Level 1-2); the hydrophobic loss classification value is 1-2 grade (Level 1-2), the recovery time is 12h ( ⁇ 24h), and the hydrophobic migration HC grade is 2- Level 3 (Level 2-3); The results show that all indicators meet the requirements.
- the results of the hydration migration aging test The number of sample tests was 9 and the recovery time was 10 hours.
- composition of the coating provided in this control test is based on the coating composition provided in Control Test 1, adding 0.75 kg of small molecular weight methyl silicone oil (viscosity 20-100 Cp), 0.75 kg of diphenyldihydroxysilane and 1.5 kg or less.
- Water repellent :
- R is acetoxy CH 3 COO.
- R -Si is
- Tear strength 10.45kN/m (>3kN/m), shear strength 2MPa (>0.8MPa); dielectric strength 19.58kV/mm (> 18kV/mm);
- the hydrophobic HC classification value is Grade 1 (Level 1-2); the hydrophobic loss grade is 1-2 grade (Level 1-2), the recovery time is 12h ( ⁇ 24h), and the hydrophobic migration HC grade is 1- Level 2 (Level 2-3); The results show that all indicators meet the requirements.
- the results of the hydration migration aging test The number of sample tests was 12 and the recovery time was 4.5 hours.
- the RTV anti-soil flash coating has the best performance, which is better than the long-acting water-repellent agent, and is also superior to the commonly used water repellent.
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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BR112013025013A BR112013025013B8 (pt) | 2011-08-19 | 2012-07-06 | Material de revestimento de flashover anticontaminação rtv e processo de produção do mesmo |
US14/021,675 US9058920B2 (en) | 2011-08-19 | 2013-09-09 | RTV anti-contamination flashover coating material and production process thereof |
Applications Claiming Priority (2)
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CN201110240257.0 | 2011-08-19 | ||
CN201110240257.0A CN102321434B (zh) | 2011-08-19 | 2011-08-19 | 一种rtv防污闪涂料及其制备方法 |
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US14/021,675 Continuation US9058920B2 (en) | 2011-08-19 | 2013-09-09 | RTV anti-contamination flashover coating material and production process thereof |
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US (1) | US9058920B2 (zh) |
CN (1) | CN102321434B (zh) |
BR (1) | BR112013025013B8 (zh) |
WO (1) | WO2013026331A1 (zh) |
Cited By (2)
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CN109796873A (zh) * | 2019-02-28 | 2019-05-24 | 国网河南省电力公司唐河县供电公司 | 一种电气设备防污闪涂料及其制备方法 |
CN114921181A (zh) * | 2022-06-30 | 2022-08-19 | 镇江市江冠电器有限公司 | 一种室温下电气产品用prtv防污闪涂料及其制备工艺 |
Families Citing this family (9)
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CN102321434B (zh) * | 2011-08-19 | 2014-02-12 | 山西省电力公司晋城供电分公司 | 一种rtv防污闪涂料及其制备方法 |
CN103923562A (zh) * | 2013-01-10 | 2014-07-16 | 滕州市智星电力电子工程有限公司 | 一种单组分prtv防污闪涂料及其制备方法 |
WO2016089190A1 (es) * | 2014-12-04 | 2016-06-09 | Aplicaciones Silidriel, S.A. De C.V. | Recubrimiento elastomérico a base de silicón, utilizado en aisladores eléctricos |
CN104962196A (zh) * | 2015-07-30 | 2015-10-07 | 江门市华材新材料科技实业有限公司 | 一种机车发动机用高温防腐涂料及其制备方法 |
CN106543895B (zh) * | 2016-11-08 | 2019-01-08 | 北京国电富通科技发展有限责任公司 | 防污闪涂料及其制备方法 |
CN107858094A (zh) * | 2017-11-28 | 2018-03-30 | 南宁思飞电子科技有限公司 | 一种防污闪涂料 |
CN109749022B (zh) * | 2019-03-05 | 2021-08-13 | 河北硅谷化工有限公司 | 一种防止微生物及藻类滋生的复合绝缘子 |
CN113122130B (zh) * | 2021-04-30 | 2022-02-11 | 河北诚和龙盛电力工程有限公司 | 一种改进型防污闪涂料及其制备方法 |
CN115340819A (zh) * | 2022-09-02 | 2022-11-15 | 华北电力科学研究院有限责任公司 | 一种电力设备外绝缘用防污闪涂料及其制备方法 |
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2011
- 2011-08-19 CN CN201110240257.0A patent/CN102321434B/zh active Active
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2012
- 2012-07-06 WO PCT/CN2012/078286 patent/WO2013026331A1/zh active Application Filing
- 2012-07-06 BR BR112013025013A patent/BR112013025013B8/pt active IP Right Grant
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2013
- 2013-09-09 US US14/021,675 patent/US9058920B2/en active Active
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EP1275705A1 (en) * | 2000-03-28 | 2003-01-15 | Kansai Paint Co., Ltd. | Antifouling coating composition |
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US9058920B2 (en) | 2015-06-16 |
CN102321434B (zh) | 2014-02-12 |
CN102321434A (zh) | 2012-01-18 |
US20140011952A1 (en) | 2014-01-09 |
BR112013025013B1 (pt) | 2021-05-04 |
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