CN108929625A - A kind of coatings system - Google Patents
A kind of coatings system Download PDFInfo
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- CN108929625A CN108929625A CN201810882645.0A CN201810882645A CN108929625A CN 108929625 A CN108929625 A CN 108929625A CN 201810882645 A CN201810882645 A CN 201810882645A CN 108929625 A CN108929625 A CN 108929625A
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- Prior art keywords
- copolymer
- hydroxyl
- coatings system
- inter coat
- acrylic ester
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Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester 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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/02—Polyureas
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
Abstract
The invention belongs to protection technology fields.Using the hydroxyl copolymer in cinnamic acrylic ester and polyester and/or polyurethane co-curing elastomer good with fuel oil compatibility as inter coat, it is swollen by itself rebound and oil suction of coating, achievees the purpose that quick blocking is perforated.Coatings system of the present invention, for multicoat composite construction, including at least inter coat and polyurethane elastomer/polyureas external coating, inter coat is hydroxyl copolymer in cinnamic acrylic ester-polyurethane elastomer, and styrenic component mass fraction is 6.5%-25.2% in hydroxyl copolymer in cinnamic acrylic ester；Midcoat thickness is not less than 1.5mm.The coatings system, good mechanical property is easy for construction, and technique applicability is wide；Closure speed is fast, effect is good, and strength retention is high.The instant stopper perforated or ruptured suitable for oil vessel, especially suitable for the anti-leak in the breakdown situation of fuel container, and the instant stopper of internal high oil pressure oil vessel perforation or rupture.
Description
Technical field
The invention belongs to protection technology field, it is related to coating perforation self-repair technology more particularly to oil vessel perforation is fast
Fast recovery technique.
Background technique
Fuel tank is indispensable component in motor vehicle power system, in war environment, is attacked and is equipped using small arms
Fuel tank, fortune oiling vehicle tank, fixed storage tank etc. become a kind of high efficiency-cost ratio, the high Tactical means for injuring rate, high added value, give
Equipment material brings seriously threaten safely.
CN104110814A discloses a kind of coatings system being used together with fuel tank, and invention is related at least one
The coating system deposited on part of substrate, the coating system include the inside Coating material composition deposited at least part substrate
Object, including polyureas or polyurethane coating composition；The viscous gel coating deposited at least part inner coating, wherein this is viscous
Thick coating includes the reaction product of at least one primary amine monofunctional surface activating agent and optional liquid polybutadiene, and optional
Fatty acid, and auxiliary sweller；The external coating deposited on the sticky coating of at least part.The coating system of the invention can be
A possibility that fuel leakage is significantly reduced or eliminated when fuel tank is punched by small arms fire, works as projectile, such as bullet passes through fuel tank
When, it first passes through or injects in external coating.If projectile passes through external coating, then projectile passes through or injects sticky gel
Coating.If projectile pass through sticky gel coat, then it or inject or pass through inner coating.And if projectile reaches sticky
Gel coat, then sticky coating can fill automatically the hole punched by mechanical flow mechanism, and then ensure the content of fuel tank
The inlet point through projectile does not leave object from fuel tank.The viscous gel feature of the patent disclosure is to use rotational rheometer
Viscosity is 600Pas when AR2000Rheometer measures 25 DEG C, selects this kind of viscous gel as the closure of coatings
Object, and play the role of connecting internal coating composition and external coating, still, the mechanical strength mistake of the composite coating inter coat
It is low, easy spalling failure, and viscous gel coating is exposed to the sun that lower viscosity is too low to will lead to coating failure in chronic sun.
Summary of the invention
The purpose of the present invention is to provide a kind of fuel tank perforation self-healing systems.
The object of the present invention is achieved like this: using the styrene good with fuel oil compatibility changing as polyacrylate
Property main body, matching hydroxy acryl acid class monomer preparation hydroxyl copolymer in cinnamic acrylic ester and polyester and/or polyethers
Resin carries out blending and modifying, with obtaining after isocyanate curing agent crosslinking there is the elastomer of oil suction swelling function to apply as intermediate
Layer is swollen the oil suction volume expansion of elastomer by itself rebound of coating, in conjunction with oil suction, reaches the mesh of quick blocking perforation
's.
Coatings system of the present invention is multicoat composite construction, it is characterised in that: includes at least intermediate apply
Layer and polyurethane/polyurea elastomer external coating, inter coat are hydroxyl copolymer in cinnamic acrylic ester-elastic polyurethane
Body, styrenic component mass fraction is 6.5%-25.2% in hydroxyl copolymer in cinnamic acrylic ester；Midcoat thickness is not
Less than 1.5mm.
Coatings system of the present invention, be multicoat composite construction, it is characterised in that: further include polyurethane/
Polyurea elastomer priming coat.
The coatings system being related to of the invention, be multicoat composite construction, it is characterised in that: inter coat be containing
Hydroxy styrenes-acrylate copolymer-polyurethane elastomer, acrylate in hydroxyl copolymer in cinnamic acrylic ester
Middle long-chain ester constituent mass score is 31.5%-54.7%.
Coatings system of the present invention is multicoat composite construction, it is characterised in that: inter coat is containing hydroxyl
Base copolymer in cinnamic acrylic ester-polyurethane elastomer, hydroxy radical content is in hydroxyl copolymer in cinnamic acrylic ester
1.2%-2.6%。
Coatings system of the present invention is multicoat composite construction, it is characterised in that: the material of inter coat
System further includes that hydroxy polyethers and/or hydroxy polyester resin, wherein hydroxy polyethers and/or hydroxy polyester resin are no more than copolymer
The 55% of quality.
Coatings system of the present invention is multicoat composite construction, it is characterised in that: midcoat thickness is situated between
In 1.5mm~3mm.
Coatings system of the present invention is multicoat composite construction, it is characterised in that: the material of inter coat
System further includes the rubber particle no more than copolymer quality 31.0%.
Coatings system of the present invention is multicoat composite construction, it is characterised in that: the rubber particle
Granularity is not more than 200 mesh.
Coatings system of the present invention is multicoat composite construction, it is characterised in that: the rubber particle is
Or mixtures thereof ethylene propylene diene rubber and/or butadiene-styrene rubber particle.
Coatings system of the present invention, mechanical strength, durability, vibration resistance, heat-resisting quantity are good, construction party
Just, technique applicability is wide；Oil vessel perforation is blocked, plugging effect is good, and closure speed is fast, coating machinery property retention after oil suction
Rate is high, and the ability for bearing oil pressure is good.The instant stopper perforated or ruptured suitable for oil vessel, especially suitable for fuel container quilt
Anti-leak in the case of breakdown, and the instant stopper of internal high oil pressure oil vessel perforation or rupture, prevent perforated
The harm that fuel leakage generates.
Specific embodiment
Embodiment 1
By 20 parts of dodecyl acrylate, 20 parts of methyl methacrylate, 16 parts of styrene, 7.5 parts of hydroxy-ethyl acrylate, mixing is stirred
After mixing, 32 parts of ethyl acetate are added, 1 part of initiator B PO, dissolution is sufficiently stirred and obtains mixture；Mixture such as is divided at the quality
Two parts, portion is placed in three diameter bottles, and portion is placed in constant pressure funnel, lead to nitrogen deoxygenation, stirring condition it is lower 75 DEG C heat preservation
Initiation reaction in 5 hours is reacted, liquid in constant pressure funnel is controlled and is keeping instilling in three diameter bottles in 75 DEG C of constant temperature 2h, 75 DEG C of guarantors
Temperature reaction 3h, cooled to room temperature, removed under reduced pressure solvent obtain hydroxyl copolymer in cinnamic acrylic ester, styrene group
Divide content 25.2%, hydroxy radical content 1.7%.
By 100 parts of hydroxyl copolymer in cinnamic acrylic ester, 0.1 part of dibutyl tin dilaurate, auxiliary rheological agents
It Max2 parts of Thixatrol, is uniformly mixed and is used as component A；According to active hydrogen and isocyanate-equivalent weight ratio 1:1, MDI prepolymer is taken
(Desmodur is created in CohanE22) 49.7 parts, 5 parts of 3A zeolite molecular sieve, 1 part of hollow glass micropearl (S22) is uniformly mixed conduct
B component；A, B component is mixed evenly to obtain middle painting coating.
Surface layer coating component A composition are as follows: NH1220(polyaspartic ester) 230 parts, HT-102(fire retardant) 60 parts, thin,tough silk
40 parts of mica, Thixatrol Max(auxiliary rheological agents) 3 parts；Surface layer coating B component composition are as follows: EXP2723(polyisocyanate)
200 parts, 20 parts of expandable vermiculite；Two components are uniformly mixed mix well to obtain surface layer coating again respectively.
To the aluminium alloy tank surface degreasing and rust removal of wall thickness 2mm, surface sand-blasting to Sa2.5 sprays WST-5092 epoxy glass
Glass scale priming paint is cool to set for 24 hours.It is constructed using brush coating process, brushes inter coat four, be spaced 2h, it is cool to set for 24 hours；Brushing face applies
Coating four is spaced 1h, and room temperature is cool to set 7 days, obtains the compound coatings of inter coat 2mm, finishing coat 4mm.
It is packed into 0# diesel oil in fuel tank and carries out target practice test, 5.8mm standard pistol bullet, distance 100m shooting, point of impact is away from oil
Face difference in height 0.2m, breakdown oil tank wall do not spray immediately, and fuel oil is leaked from hole, and leak rate is no more than 0.2 drop/s after 70s.
Embodiment 2
Copolymer material group become 40 parts of dodecyl acrylate, 23 parts of butyl acrylate, 5 parts of styrene, hydroxy-ethyl acrylate 8.5
Part, 38 parts of ethyl acetate, 1.3 parts of initiator A IBN, preparation method one 75 DEG C of initiation reactions in 4 hours of example simultaneously, 75 DEG C of dropwise additions
Polyether polyol (ten thousand China WANOL are added in 2h, 75 DEG C of reaction 3.5h, cooled to room temperatureC2004) 30 parts of mixings, decompression
Evaporation, obtains copolymer in cinnamic acrylic ester-polyethers blending resin, the styrene of copolymer contains after so that solvent is volatilized completely
Amount 6.5%, hydroxy radical content 1.6%.Polyether resin quality is the 39.2% of copolymer quality.
By 100 parts of hydroxyl cinnamic acrylic ester-polyethers blending resins, 0.1 part of dibutyl tin dilaurate, rheology
Max2 parts of auxiliary agent Thixatrol, 300 5 parts of mesh butadiene-styrene rubber particles are uniformly mixed and are used as component A；According to active hydrogen and isocyanide
Acid group equivalent proportion 0.98:1, taking HDI urea diketone, (Desmodur is created in CohanN3400) it is used as B component for 34 parts；A, B component mixes
Uniformly obtain middle painting coating.Rubber particle is the 6.5% of copolymer quality.
By wall thickness 2mm aluminium alloy tank surface degreasing and rust removal, surface sand-blasting to Sa2.5 sprays WST-5092 expoxy glass
Scale priming paint is cool to set for 24 hours.Bottom, finishing coat spray polyurea system are according to public in patent publication No. CN01816689.X embodiment 1
The method opened is prepared and is constructed respectively.
Using high pressure two component spray technique, successively spray primary coat 0.5mm, middle paintings 2.2mm and face painting 3mm, each interlayer every
24 h, last room temperature curing 7 days, obtain compound coatings.
92# gasoline is packed into fuel tank, using the common steel core bullet of 7.62mm, distance 100m shooting, point of impact is away from fuel head
Poor 0.5m, breakdown oil tank wall spray on a small quantity immediately, and fuel oil is leaked from hole, is had a small amount of fuel to leak from hole after 80s, is not surpassed
Cross 0.1 drop/s.
Embodiment 3
Copolymer material composition are as follows: 37 parts of dodecyl acrylate, 25 parts of methyl methacrylate, 16 parts of styrene, acrylic acid hydroxyl
7.5 parts of propyl ester and hydroxy-ethyl acrylate 1:1 mixture, 43 parts of ethyl acetate, IBN1.3 parts of initiator A, synthetic method is the same as implementation
Example one, 80 DEG C of initiation reactions 4h, 80 DEG C of dropwise additions 1h, 75 DEG C of reaction 3h.
Cooled to room temperature, polyester polyol is added, and (Desmophen is created in Cohan670) (ten thousand is magnificent with polyether polyol
WANOLC2004) 25 parts of 1:1 mixture mixings are evaporated under reduced pressure, and it is total that cinnamic acrylic ester is obtained after so that solvent is volatilized completely
Polymers-polyether-polyester blending resin.The styrene-content 18.7% of copolymer, hydroxy radical content 1.2%.Polyethers and polyester resin are mixed
Close 29.2% that amount of substance is copolymer quality.
Take 100 parts of copolymer in cinnamic acrylic ester-polyether-polyester blending resin, 0.1 part of dibutyl tin dilaurate,
200 mesh butadiene-styrene rubber and ethylene propylene diene rubber 1:1(mass ratio) 10 parts of hybrid fine particles, auxiliary rheological agents Thixatrol Max1.5
Part, it is uniformly mixed and is used as component A；According to active hydrogen and isocyanate-equivalent weight ratio 1:1, isocyanate curing agent (TDI pre-polymerization is taken
Desmodur is created in object, CohanE15) 120 parts, 15 parts of 3A zeolite molecular sieve, as B component；A, during B component is mixed evenly to obtain
Apply coating.Rubber particle is the 11.7% of copolymer quality.
By wall thickness 2mm aluminium alloy tank surface degreasing and rust removal, surface sand-blasting to Sa2.5 sprays WST-5092 expoxy glass
Scale priming paint is cool to set for 24 hours.Priming coat is with spray polyurea system according to disclosing in patent publication No. CN104497823A embodiment 1
Method prepare, finishing coat according to method disclosed in patent publication No. CN01816689.X prepare.
Using high pressure two component spray technique, successively sprays primary coat 1mm, middle painting 1.5mm and face and apply 4mm, each interlayer is every 24
H, last room temperature curing 7 days, obtains compound coatings.
92# gasoline is packed into fuel tank, using 5.8mm standard pistol bullet, distance 100m shooting, point of impact is poor away from fuel head
1.2m, breakdown oil tank wall do not spray immediately, and fuel oil is leaked from hole, stops leakage in 90s
Embodiment 4
Copolymer material composition are as follows: 32 parts of dodecyl acrylate, 5 parts of methyl methacrylate, 10 parts of styrene, acrylic acid hydroxypropyl
11.5 parts of ester, after mixing, 29 parts of ethyl acetate are added, 1 part of initiator B PO, synthetic method is as in the first embodiment, 75 DEG C anti-
Answer 5h+3h+2.5h.
Cooled to room temperature, polyester polyol is added, and (Desmophen is created in Cohan670) 30 parts of mixings are evaporated under reduced pressure,
Copolymer in cinnamic acrylic ester-polyester blend resin is obtained after so that solvent is volatilized completely.The styrene-content of copolymer
17.1%, hydroxy radical content 2.6%.Polyester resin quality is the 51.3% of copolymer quality.
By 100 parts of hydroxyl cinnamic acrylic ester-polyester blend resins, 0.1 part of dibutyl tin dilaurate, rheology
It Max2.5 parts of auxiliary agent Thixatrol, is uniformly mixed and is used as component A；According to active hydrogen and isocyanate-equivalent weight ratio 1.08:1, take
MDI prepolymer DesmodurDesmodur is created in E22 and the diketone Cohan of HDI urea47.5 parts of mixture of N3400 mass ratio 1:1,
It 7 parts of precipitated calcium carbonate, is uniformly mixed and is used as B component；A, B component is mixed evenly to obtain middle painting coating.
Priming coat is prepared according to method disclosed in Chinese publication number CN104497823A embodiment 1, according in embodiment 1
Face coating layer formula prepares surface layer coating, in order curing molding on mixed at high speed after-pouring to polytetrafluoro template respectively, primary coat
1.5mm, middle painting 2.7mm, face apply 2mm, each interval 2h, demould taking-up after being stored at room temperature 72h.
By wall thickness 2mm aluminium alloy tank surface degreasing and rust removal, surface sand-blasting to Sa2.5 sprays WST-5092 expoxy glass
Scale priming paint is cool to set for 24 hours.Primer coating is prepared as bonding agent, prefabricated film is bonded on fuel tank, 7 days is stood in room temperature, obtains
To compound coatings.
It is packed into 0# diesel oil and carries out target practice test, using the common steel core bullet of 7.62mm, distance 100m shooting, point of impact is away from pasta
Difference in height 0.2m, breakdown oil tank wall do not spray immediately, and a small amount of fuel oil is leaked from hole, stops leakage in 75s.
Embodiment 5
Copolymer material composition are as follows: acrylic acid 18
35 parts of ester, 12 parts of methyl methacrylate, 8 parts of styrene, 9.5 parts of hydroxy-ethyl acrylate, after mixing, acetic acid is added
32 parts of ethyl ester, 1 part of initiator A IBN, synthetic method is as in the first embodiment, 70 DEG C of initiation reaction 6h, and 75 DEG C of dropwise addition 2h, 75 DEG C are reacted
3h。
Cooled to room temperature, polyester polyol is added, and (Desmophen is created in Cohan670) (ten thousand is magnificent with polyether polyol
WANOLC2004) 35.5 parts of 2:1 mixture mixings are evaporated under reduced pressure, obtain Styrene And Chloroalkyl Acrylates after so that solvent is volatilized completely
Ester copolymer-polyether-polyester blending resin.The styrene-content 12.4% of copolymer, hydroxy radical content 2.2%.Polyethers and polyester tree
Lipid amount and be the 55.0% of copolymer quality.
Take 100 parts of copolymer in cinnamic acrylic ester-polyether-polyester blending resin, 0.1 part of dibutyl tin dilaurate,
325 mesh butadiene-styrene rubber and ethylene propylene diene rubber 3:2(mass ratio) 20 parts of hybrid fine particles, Max1 parts of auxiliary rheological agents Thixatrol,
It is uniformly mixed and is used as component A；According to active hydrogen and isocyanate-equivalent weight ratio 1:1, MDI prepolymer Desmodur is takenE22 with
Desmodur is created in HDI urea diketone Cohan60 parts of mixture of N3400 mass ratio 2:1,10 parts of 3A zeolite molecular sieve, as B component；
A, B component is mixed evenly to obtain middle painting coating.Rubber particle is the 31.0% of copolymer quality.
To the aluminium alloy tank surface degreasing and rust removal of wall thickness 2mm, surface sand-blasting to Sa2.5.Bottom, finishing coat are all made of implementation
The face of example 1 applies system, is constructed using brush coating process, brushes primer coating twice, is spaced 1h；Brush inter coat four, interval
2h is cool to set for 24 hours；Top coat four to be brushed, 1h is spaced, room temperature is cool to set 7 days, priming coat 2mm, inter coat 1.7mm are obtained,
The compound coatings of finishing coat 3.5mm.
It is packed into 0# diesel oil in fuel tank and carries out target practice test.Combustion bullet is worn using 12.7mm, distance 100m shooting, point of impact is away from oil
Face difference in height 0.5m, breakdown oil tank wall do not spray immediately, and for hole without fuel blow, 55s is interior to stop leakage.
Embodiment 6
First by wall thickness 2mm steel tank surface degreasing and rust removal, surface sand-blasting to Sa2.5 sprays WST-5034 epoxy phosphate zinc paint,
It stands for 24 hours.Spray polyurea system is prepared as bottom, finishing coat according to method disclosed in CN01816689.X embodiment 1, according to
Method prepares inter coat in this patent embodiment 1, is sprayed into thickness of dry film respectively up to 2.5mm, 2.5mm, 4mm each interval
24h.Coating chamber middle benefit gas solidifies 7 days, obtains compound coatings.
It is packed into diesel oil in fuel tank and carries out target practice test.Combustion bullet is worn using 12.7mm, distance 100m shooting, point of impact is away from pasta
Difference in height 1m, breakdown oil tank wall do not spray immediately, and a small amount of fuel oil is leaked from hole, stops leakage in 470s.
Embodiment 7
Primer coating is prepared according to published method in patent publication No. CN104497823A embodiment 1, it will be according to side in embodiment 5
The inter coat coating of method preparation is prepared surface layer coating according to surface layer coating formula in this patent embodiment 1, is successively poured into poly-
Curing molding in tetrafluoro template.Control primary coat thickness 3mm, middle painting 3.3mm, face painting 3mm, each interval 2h, after being stored at room temperature 72h
Demoulding is taken out.
To wall thickness 2mm steel tank surface degreasing and rust removal, surface sand-blasting to Sa2.5, primer coating, will be prefabricated as bonding agent
Piece is bonded on fuel tank, is stood 7 days in room temperature, is obtained compound coatings.
It is packed into diesel oil in fuel tank and carries out target practice test.Using the common steel core bullet of 7.62mm, distance 100m shooting, point of impact away from
Fuel head difference 1.1m, breakdown oil tank wall do not spray immediately, and for hole without fuel blow, 70s is interior to stop leakage
Embodiment 8
To wall thickness 2mm steel tank surface degreasing and rust removal, surface sand-blasting to Sa2.5.According to being disclosed in CN01816689.X embodiment 1
Method prepare priming coat, inter coat is prepared according to method in embodiment 4, according to publication number CN104497823A embodiment 1
Disclosed in method prepare surface layer coating.
Using high pressure two component spray technique, successively spray primary coat 3mm, middle paintings 3mm and face painting 4mm, each interlayer every 24 h,
Last room temperature curing 7 days, obtain compound coatings.
It is packed into diesel oil in fuel tank and carries out target practice test.Combustion bullet is worn using 12.7mm, distance 100m shooting, point of impact is away from pasta
Difference in height 1.5m, breakdown oil tank wall do not spray immediately, and a small amount of fuel oil is leaked from hole, stops leakage in 150s.
Claims (10)
1. a kind of coatings system is multicoat composite construction, it is characterised in that: include at least inter coat and poly- ammonia
Ester/polyurea elastomer external coating, inter coat are hydroxyl copolymer in cinnamic acrylic ester-polyurethane elastomer, hydroxyl
Styrenic component mass fraction is 6.5%-25.2% in copolymer in cinnamic acrylic ester；Midcoat thickness is not less than
1.5mm。
2. coatings system according to claim 1, it is characterised in that: inter coat is hydroxyl styrene-the third
Olefin(e) acid ester copolymer-polyurethane elastomer, long-chain ester group sub-prime in acrylate in hydroxyl copolymer in cinnamic acrylic ester
Amount score is 31.5%-54.7%.
3. coatings system according to claim 1, it is characterised in that: inter coat is hydroxyl styrene-the third
Olefin(e) acid ester copolymer-polyurethane elastomer, hydroxy radical content is 1.2%-2.6% in hydroxyl copolymer in cinnamic acrylic ester.
4. coatings system according to claim 1, it is characterised in that: the material system of inter coat further includes hydroxyl
Base polyethers and/or hydroxy polyester resin, wherein hydroxy polyethers and/or hydroxy polyester resin are no more than the 55% of copolymer quality.
5. coatings system described in any one according to claim 1~4, it is characterised in that: midcoat thickness is situated between
In 1.5mm~3mm.
6. coatings system described in any one according to claim 1~4, is multicoat composite construction, feature exists
In: the material system of inter coat further includes the rubber particle no more than copolymer quality 31.0%.
7. coatings system according to claim 6 is multicoat composite construction, it is characterised in that: the rubber
The granularity of particle is not more than 200 mesh.
8. coatings system according to claim 6, it is characterised in that: the rubber particle is ethylene propylene diene rubber
And/or or mixtures thereof butadiene-styrene rubber particle.
9. coatings system described in any one according to claim 1~4, it is characterised in that: further include polyurethane/poly-
Urea elastomers priming coat.
10. coatings system according to claim 6, it is characterised in that: further include polyurethane/polyurea elastomer bottom
Coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810882645.0A CN108929625B (en) | 2018-08-06 | 2018-08-06 | Self-repairing coating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810882645.0A CN108929625B (en) | 2018-08-06 | 2018-08-06 | Self-repairing coating system |
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| CN108929625A true CN108929625A (en) | 2018-12-04 |
| CN108929625B CN108929625B (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115926606A (en) * | 2022-12-07 | 2023-04-07 | 青岛爱尔家佳新材料股份有限公司 | Explosion-proof and leakage-proof coating for oil tank and preparation method thereof |
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| CN108929625B (en) | 2021-10-22 |
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