CN107082902A - The grease proofing diffusion layer of fuel tank - Google Patents
The grease proofing diffusion layer of fuel tank Download PDFInfo
- Publication number
- CN107082902A CN107082902A CN201710361974.6A CN201710361974A CN107082902A CN 107082902 A CN107082902 A CN 107082902A CN 201710361974 A CN201710361974 A CN 201710361974A CN 107082902 A CN107082902 A CN 107082902A
- Authority
- CN
- China
- Prior art keywords
- grease proofing
- tank
- diffusion layer
- rubber
- fuel tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/48—Polymers modified by chemical after-treatment
- C08G69/50—Polymers modified by chemical after-treatment with aldehydes
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- 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
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
-
- 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
- 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
- C08J2321/00—Characterised by the use of unspecified rubbers
-
- 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
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Polyamides (AREA)
Abstract
The invention discloses it is a kind of be related to prevent the casing modification method of rubber oil storage tank seepage, the more particularly to preparation method of the grease proofing diffusion layer of tank wall of aircraft rubber thin-walled soft tank.The grease proofing diffusion layer of modified nylon is coated in the middle of fuel tank tank wall rubber layer, ectonexine is oil resistant rubber, centre is grease proofing diffusion.During oil storage, grease proofing diffusion layer has blocked the stomata of oil leak in the middle of tank wall, serves the effect of grease proofing diffusion.
Description
Technical field
The present invention relates to the casing modification method for preventing rubber oil storage tank seepage, more particularly to aircraft rubber thin-walled is soft
The preparation method of the grease proofing diffusion layer of tank wall of fuel tank.
Background technology
Space shuttle rubber soft tank is taken a flight test machine oil storage critical piece, due to during long-term storage fuel oil oil can slowly from
Diffused out on oil tank wall.The problem of present invention mainly solves the fuel tank tank wall oil diffusion seepage of rubber soft tank, reduces
Rubber soft tank tank wall thickness, makes fuel tank weight saving, oil reserve increase.At present, on space shuttle, unmanned plane soft tank
Through application very well.
The operation principle of the present invention is that in fuel tank tank wall manufacturing process, the grease proofing diffusion layer of modified nylon is coated in oil
In the middle of case tank wall rubber layer, ectonexine is oil resistant rubber, and centre is grease proofing diffusion.It is grease proofing in the middle of tank wall to expand during oil storage
Scattered layer serves the effect of grease proofing diffusion.
The content of the invention
The purpose of the present invention be for overcome the shortcomings of existing rubber soft tank fuel tank tank wall oil diffusion and to fuel tank case
The manufacturing process of wall is improved.
The technical solution for realizing the object of the invention is:It is in fuel tank tank wall manufacturing process, modified nylon is grease proofing
Diffusion layer is coated in the middle of fuel tank tank wall rubber layer, and ectonexine is oil resistant rubber, and centre is grease proofing diffusion.During oil storage,
Grease proofing diffusion layer smears Minute pores top layer in the middle of tank wall, serves the effect of grease proofing diffusion.
The present invention compared with prior art, its remarkable advantage:(1) the problem of solving the diffusion of soft tank oil and seepage;(2)
Fuel tank tank wall reduces 1/2 than crude oil case tank wall thickness;(3) fuel tank weight saving 30%, tank wall is more soft, application field
Relative increase.
Brief description of the drawings
Fig. 1 is the structural representation of fuel tank.
Embodiment
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Reference picture 1, each layer of tank body of oil tank includes framework material (1), the glue-line of resistance to slurry oil (2), oil resistant rubber (3), resistance to slurry oil
Glue-line (4), grease proofing diffusion layer (5), the glue-line of resistance to slurry oil (6), oil resistant rubber (7).
1st, the preparation of grease proofing diffusion nylon
Graft copolymerization:Ternary is added in the reaction bulb equipped with agitator, heating water tank, dropping funel and thermometer
Copolymer nylon, formaldehyde, heat up under agitation, ternary polymerization is fully dissolved in nylon, add the catalyst of metering, and control
Reaction temperature.Formalin was slowly added into 1 hour, in 65 DEG C of stirring reactions 6 hours, reactant is cleaned in clear water,
There is white precipitate precipitation, after being cleaned multiple times, ternary Nylon is done in neutrality in 50 DEG C of drying boxes or under nature
It is dry to constant weight.
By graft copolymerization, the novel nylon graft product of certain structure can be obtained, and thus change original ternary
Some characteristics of copolymer, make it have new specific function.
Dried nylon graft product is dissolved in formaldehyde under the conditions of certain temperature, be made into 20%~25% it is molten
Liquid, is first component;Divinyl triammonium solution will be added in 589 amino resins, reaction removed moisture totally after 20 minutes, was second
Component.
Grease proofing diffusion nylon is made after being well mixed by 1: 1 in first component and component B.
2nd, grease proofing diffusion layer (5) makes
Due to there are Minute pores between the rubber molecule of fuel tank, oil can be leaked into slowly outside fuel tank in diffusion.It is grease proofing to expand
The problem of layer (5) is mainly solution fuel tank seepage is dissipated, in fuel tank tank wall manufacturing process, grease proofing diffusion nylon is passed through glue spreader
It is coated in the middle of rubberized fabric, film thickness is 0.01mm, plays the oily diffusion of isolation.Pass through modified nylon and grease proofing diffusion nylon
Make, improve oily diffusion coating operating characteristics, film is convenient, easy to operate, and sizing material is soft, and solves grease proofing diffusion layer and rubber
Glue bond problem, solves oil diffusion leakage problems.
3rd, the application in fuel tanker
After grease proofing diffusion layer is applied on fuel tank tank wall, heat-bodied oil case tank wall thickness is set to reduce by more than 1/2, fuel tank tank wall thickness
< 0.80mm, weight reduces 30%;After the oily diffusion layer of increase, oil diffusion RP-3 fuel oils (50 DEG C × 120h) g/m2D < 5.Oil
Do not occur Seepage during case use, application field is extensive.
Claims (2)
1. it is a kind of be related to prevent the casing modification method of rubber oil storage tank seepage, more particularly to aircraft rubber thin-walled soft tank
Grease proofing diffusion layer preparation method.
2. the preparation method of the grease proofing diffusion layer of tank wall of aircraft rubber thin-walled soft tank according to claim 1, its feature
It is by graft copolymerization, the novel modification of nylon of certain structure can be obtained, the modified grease proofing diffusion layer of nylon is applied
Overlay in the middle of fuel tank tank wall rubber layer, ectonexine is oil resistant rubber layer, and centre is grease proofing diffusion layer;During oil storage, due to
There are Minute pores between rubber molecule, oil can be leaked into slowly outside fuel tank in diffusion, and the grease proofing diffusion layer of nylon smears stomata table
Face solves fuel tank leakage problems.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710361974.6A CN107082902A (en) | 2017-05-22 | 2017-05-22 | The grease proofing diffusion layer of fuel tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710361974.6A CN107082902A (en) | 2017-05-22 | 2017-05-22 | The grease proofing diffusion layer of fuel tank |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107082902A true CN107082902A (en) | 2017-08-22 |
Family
ID=59609240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710361974.6A Pending CN107082902A (en) | 2017-05-22 | 2017-05-22 | The grease proofing diffusion layer of fuel tank |
Country Status (1)
Country | Link |
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CN (1) | CN107082902A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110239122A (en) * | 2019-06-17 | 2019-09-17 | 南通通易航天科技股份有限公司 | A kind of preparation process of aircraft soft tank |
CN111673971A (en) * | 2020-06-12 | 2020-09-18 | 贵州航天精工制造有限公司 | Soft oil tank bag opening forming process and structure |
CN116855068A (en) * | 2023-08-22 | 2023-10-10 | 南通通易航天科技股份有限公司 | Light nonmetallic material for aircraft flexible fuel tank and preparation method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101660278A (en) * | 2009-09-25 | 2010-03-03 | 中国人民解放军总后勤部油料研究所 | Preparation method of ultra oil-resistant coated fabric, obtained product and application thereof |
CN205293102U (en) * | 2015-12-31 | 2016-06-08 | 陕西延长石油西北橡胶有限责任公司 | Tectorial membrane rubber soft tank |
CN106183791A (en) * | 2016-08-02 | 2016-12-07 | 李勇成 | A kind of self sealing fuel tank |
-
2017
- 2017-05-22 CN CN201710361974.6A patent/CN107082902A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101660278A (en) * | 2009-09-25 | 2010-03-03 | 中国人民解放军总后勤部油料研究所 | Preparation method of ultra oil-resistant coated fabric, obtained product and application thereof |
CN205293102U (en) * | 2015-12-31 | 2016-06-08 | 陕西延长石油西北橡胶有限责任公司 | Tectorial membrane rubber soft tank |
CN106183791A (en) * | 2016-08-02 | 2016-12-07 | 李勇成 | A kind of self sealing fuel tank |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110239122A (en) * | 2019-06-17 | 2019-09-17 | 南通通易航天科技股份有限公司 | A kind of preparation process of aircraft soft tank |
CN111673971A (en) * | 2020-06-12 | 2020-09-18 | 贵州航天精工制造有限公司 | Soft oil tank bag opening forming process and structure |
CN116855068A (en) * | 2023-08-22 | 2023-10-10 | 南通通易航天科技股份有限公司 | Light nonmetallic material for aircraft flexible fuel tank and preparation method thereof |
CN116855068B (en) * | 2023-08-22 | 2024-02-23 | 南通通易航天科技股份有限公司 | Light nonmetallic material for aircraft flexible fuel tank and preparation method thereof |
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Application publication date: 20170822 |