CN107082902A - The grease proofing diffusion layer of fuel tank - Google Patents

The grease proofing diffusion layer of fuel tank Download PDF

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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
Application number
CN201710361974.6A
Other languages
Chinese (zh)
Inventor
金宇
陈永彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANTONG TONGYI AEROSPACE TECHNOLOGY Co Ltd
Original Assignee
NANTONG TONGYI AEROSPACE TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NANTONG TONGYI AEROSPACE TECHNOLOGY Co Ltd filed Critical NANTONG TONGYI AEROSPACE TECHNOLOGY Co Ltd
Priority to CN201710361974.6A priority Critical patent/CN107082902A/en
Publication of CN107082902A publication Critical patent/CN107082902A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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

Landscapes

  • 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

The grease proofing diffusion layer of fuel tank
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.
CN201710361974.6A 2017-05-22 2017-05-22 The grease proofing diffusion layer of fuel tank Pending CN107082902A (en)

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
CN (1) CN107082902A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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