CN109021803A - A kind of weatherability and toughness and excellent aircraft skin varnish and preparation method thereof - Google Patents
A kind of weatherability and toughness and excellent aircraft skin varnish and preparation method thereof Download PDFInfo
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- CN109021803A CN109021803A CN201810595899.4A CN201810595899A CN109021803A CN 109021803 A CN109021803 A CN 109021803A CN 201810595899 A CN201810595899 A CN 201810595899A CN 109021803 A CN109021803 A CN 109021803A
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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
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6644—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/47—Levelling agents
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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
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
- C08K5/3475—Five-membered rings condensed with carbocyclic rings
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of weatherabilities and toughness and excellent aircraft skin varnish and preparation method thereof, the varnish is mainly made of component A and component B, each component and its parts by weight dosage of component A are as follows: self-control Si modification hydroxy resin 50~60, toughened resin 4~10, drier 0.1~1, levelling agent 0.1~1, ultraviolet absorbing agent 0.1~1, hindered amine stabilizer 0.1~1, mixed solvent 35~45；The each component and its parts by weight dosage of component B are as follows: aliphatic isocyanates curing agent 65~75, mixed solvent 25~35.Aircraft skin of the invention is suitble to varnish and aircraft skin is matched with base coat, the paint film that it is formed is tough, it can be subjected to high/low-temperature impact, there are the performances such as excellent guarantor's color gloss retention, good resistance to medium simultaneously, coating property meets the requirement of the aeronautical material specification standard AMS 3095A and the winged Aerospace Material Specification CMS-CT-102 of quotient of SAE international.
Description
Technical field
The invention belongs to painting fields, and in particular to a kind of large and medium-sized aviation aircraft covering high-performance varnish.
Background technique
China in Recent Years aircraft industry is fast-developing, and various advanced aviation aircrafts intensively expose, such as domestic large commercial
Aircraft C-919, domestic large size fire extinguishing/water life-saving amphibious aircraft AG600 etc. will step into mass-production stage, on
It states type and is required to the mating coating material of aircraft of high-quality to be decorated and be protected.
The mating conventional coating system of aircraft is made of anticorrosion reality color bottom coating and real color surface layer coating.In general, anti-corrosion
The dry film thickness range for losing real color bottom coating is about 15~25 μm, and the dry film thickness range of real color surface layer coating is about 50~80
μm.Although being able to satisfy the demand of various aircraft substantially by the coating performance that above-mentioned conventional coating system is formed, there are still following
Problem: (1) direct relation, institute are coated with since the glossiness and color of final aircraft coating be presented with real color surface layer coating
With, once there is the defects of orange peel, sagging, pin hole, sand-like surface in surface layer, then the glossiness of final aircraft coating can substantially under
Drop, while the accuracy that its color is presented will also be affected, and therefore, have strict requirements to coating quality；(2) each in order to make
Coating obtains high glaze and smooth surface, it is necessary to the rationally drying process of control coating；(3) directly and greatly due to real color surface layer
The contact of compression ring border is easy dusting, loss of gloss for a long time by the erosion of oxygen and rainwater in ultraviolet light, air, thus, for face
Layer gloss retention requires very high.
2010, the BC/CC (BASECOAT/CLEARCOAT) that PPG company of the U.S. takes the lead in externally formally issuing its development was applied
Material system, i.e. base coat add varnish system.Compared with traditional coating system (priming paint adds finishing coat), BC/CC coating system have with
Lower advantage: (1) system is than traditional dual-coating system loss of weight 15~25%, and using the system, a frame baby plane 1 year can be with
Nearly 100,000 dollars of fuel oil expense is saved, large aircraft can then save nearly 600,000 dollars of fuel oil expense；(2) it is coated using the system
The degree fast in colour of aircraft will increase by twice, increased to 10 years, maintenance cost and stop because of caused by maintenance from about five years
Winged loss will substantially reduce.After PPG company of the U.S. releases the product, Dutch Akzo Nobel N.V., Germany Mei Kaiweiqi are public
Department issues its BC/CC coating system product successively.Domestic large commercial aircraft C-919, domestic large-scale fire extinguishing/water life-saving land and water
BC/CC is applied Material by the minicomputers such as amphibian AG600, civilian Medium Plane MA600, MA700 and LE-500, LE-700
Series enters type design specification, and BC/CC coating system product will be increasingly becoming the main product of civil aircraft coating.
It is domestic not yet to carry out correlative study comprehensively as the aircraft skin varnish of one of BC/CC coating system product
Work.Domestic main aircraft skin coating system has at present: double-component acrylic acid polyurethane system, double component polyester polyurethane
System, two-component fluorochemical urethane system, two-component silicon-based polyurethane system, these good sexual valences of system comprehensive performance compare
It is good to protect color gloss retention for height, but its flexibility is insufficient, and paint film is easy to crack after especially long-term high-low temperature resistant circulation impact, affects
Its service life.A kind of aircraft skin varnish provided by the invention, using the flexible resin of good weatherability as resin master
Body, is aided with aliphatic or alicyclic superbrnaching end-hydroxy resin carrys out activeness and quietness, and the paint film formed is tough, can be subjected to height
Temperature impact, has the performances such as excellent guarantor's color gloss retention, good resistance to medium, and coating property meets international automobile engineer
The aeronautical material specification standard AMS 3095A and quotient of meeting fly the requirement of Aerospace Material Specification CMS-CT-102, which fills up
Domestic blank has broken the monopolization of external coating products.
Summary of the invention
The object of the present invention is to provide a kind of and aircraft skins to be matched with base coat, and paint film is tough, can be subjected to
There is high/low-temperature impact performances, the coating properties such as excellent guarantor's color gloss retention, good resistance to medium to meet international automobile engineering
The aeronautical material specification standard AMS 3095A and quotient of Shi Xuehui flies the aircraft skin that Aerospace Material Specification CMS-CT-102 is required
Use varnish.
Realizing the technical solution of the object of the invention is: a kind of weatherability and toughness and excellent aircraft skin varnish, by
Component A and component B is constituted, which is characterized in that each component and its parts by weight dosage of component A are as follows: self-control Si modification hydroxy resin
50~60, toughened resin 4~10, drier 0.1~1, levelling agent 0.1~1, ultraviolet absorbing agent 0.1~1, be obstructed it is amine stabilized
Agent 0.1~1, mixed solvent 35~45；The each component and its parts by weight dosage of component B are as follows: aliphatic isocyanates curing agent 65
~75, mixed solvent 25~35.
The specific preparation process of self-control Si modification hydroxy resin in the component A is as follows: each by formula ratio precise
Material, by polyester polyol resin, monomeric polyol, silicon-containing polymer resin reflux dewatering 2~4 hours, be cooled to 40 DEG C with
After lower, at least one diisocyanate disposably or is in batches added, is passed through inert gas, 4~12 are reacted at 60~110 DEG C
Hour, a kind of catalyst is added, is reacted 2~6 hours at 70~120 DEG C, after being cooled to 60 DEG C or less, with 200 mesh filter bags
It is filtered discharging, obtains Si modification hydroxy resin finished product, solvent for use is polyurethane grade solvent.The polyester polyol
Resin is the liner polyesterdiols resin of hydroxyl, and number-average molecular weight is 500~2500；The monomeric polyol is new penta
One or more of glycol, trimethylolpropane, pentaerythrite；The silicon-containing polymer resin is hydroxy-terminated polysiloxane tree
Rouge, number-average molecular weight are 800~2000；The mixed solvent is butyl acetate, in propylene glycol methyl ether acetate, cyclohexanone
It is one or more of；The diisocyanate is aliphatic and/or alicyclic diisocyanate；The catalyst is tin dilaurate two
One or more of butyl tin, stannous octoate, butyl titanate；
Toughened resin in the component A is aliphatic or alicyclic superbrnaching end-hydroxy resin, number-average molecular weight are
500~1500, every mole of hydroxyl quantity is 5~15；
Drier in the component A is one or more of dibutyl tin dilaurate, stannous octoate, organo-bismuth；
Levelling agent in the component A is one or more of BYK306, BYK358, BYK331；
Ultraviolet absorbing agent in the component A is benzotriazole ultraviolet absorbent, be TINUVIN1130,
One or more of TINUVIN320, TINUVIN360；
Hindered amine stabilizer in the component A is one or more of TINUVIN292, TINUVIN123；
Mixed solvent in the component A is dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate, 2-HEPTANONE, diethyl two
One or more of alcohol monobutyl ether acetate；
Aliphatic isocyanates curing agent in the component B is Desmodur N75, Desmodur N3390,
One or more of Desmodur Z4470；
Mixed solvent in the component B is one of dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate or several
Kind；
The solution have the advantages that: a kind of weatherability and toughness of technical solution of the present invention and excellent aircraft skin are used
The self-control Si modification hydroxy resin of varnish, component A uses based on the liner polyesterdiols resin having excellent weather resistance, with end hydroxyl
Organopolysiloxane resin is modified, and resin molecular weight and the degree of branching are controlled in a certain range so that resin weatherability with
Toughness and it is excellent while, still ensure that the tough of resin system；Introduce the aliphatic or alicyclic terminal hydroxy group over-expense of high solid low viscosity
On the one hand VOC content that change resin can reduce resin system makes it more meet environmentally friendly trend, on the other hand also provides more
Cross-linking reaction point, play the role of activeness and quietness to resin system；Polyacrylate levelling agent and silicone levelling agent
It is reasonably combined, it is ensured that paint film has good decorative effect；By benzotriazole ultraviolet absorbent be obstructed it is amine stabilized
The use of agent, so that the weather resistance of paint film is more excellent.Test proves a kind of weatherability and toughness and excellent boat of the invention
Pocket covering varnish, paint film is tough, can be subjected to high/low-temperature impact, has excellent guarantor's color gloss retention, good resistance to Jie
The performances such as matter, coating property meet aeronautical material specification standard AMS 3095A and the quotient's flight of SAE international
The requirement of empty MAT'L specification CMS-CT-102.
Specific embodiment
The present invention is further described in detail with reference to embodiments, but not limited.
It is raw materials used in embodiment, unless otherwise stated it is coatings industry industrial goods, can be purchased by commercial channel
?.
" part " in each embodiment is " parts by weight "；
Embodiment 1
By each material of formula ratio precise, by 87 parts of poly-lactone polyol resin PCL-1000, trimethylolpropane 5
Part, 2 parts of pentaerythrite, 24 parts of hydroxy-terminated polysiloxane resin PSi-1000,32 parts of butyl acetate, propylene glycol methyl ether acetate
32 parts reflux dewatering 2~4 hours, after being cooled to 40 DEG C or less, be added at one time 18 parts of HDI (hexamethylene diisocyanate),
It is passed through nitrogen, is reacted 6 hours at 70 DEG C, adds 0.001 part of octoate catalyst stannous, is reacted 6 hours at 90 DEG C, is cooled down
To after 60 DEG C or less, it is filtered discharging with 200 mesh filter bags, obtains self-control Si modification hydroxy resin finished product, solvent for use is equal
For polyurethane grade solvent.
Aircraft skin varnish is prepared with self-control Si modification hydroxy resin, each component and its parts by weight of component A is used
Amount are as follows:
Using commercially available aliphatic isocyanates curing agent Desmodur N75, Desmodur N3390, Desmodur
Z4470 is as varnish curing agent, each component and its parts by weight dosage of component B are as follows:
In use, component A is uniformly mixed by weight 1:1 Ji Wei aircraft skin varnish 1# with component B.
Embodiment 2
By each material of formula ratio precise, by 77 parts of poly-lactone polyol resin PCL-1000,1 part of neopentyl glycol, three
5 parts of hydroxymethyl-propane, 1 part of pentaerythrite, 36 parts of hydroxy-terminated polysiloxane resin PSi-800,32 parts of cyclohexanone, propylene glycol first
After being cooled to 40 DEG C or less, IPDI (isoflurane chalcone diisocyanate) 8 is first added in 32 parts of ether acetate reflux dewatering 2~4 hours
Part, it is passed through nitrogen, is reacted 4 hours at 60 DEG C, 0.0001 part of dibutyl tin dilaurate is added, adds HDI (hexa-methylene
Diisocyanate) 8 parts, it is reacted 4 hours at 100 DEG C, after being cooled to 60 DEG C or less, is filtered discharging with 200 mesh filter bags, i.e.,
Self-control Si modification hydroxy resin finished product is made, solvent for use is polyurethane grade solvent.
Aircraft skin varnish is prepared with self-control Si modification hydroxy resin, each component and its parts by weight of component A is used
Amount are as follows:
Solidified using commercially available aliphatic isocyanates curing agent Desmodur N75, Desmodur N3390 as varnish
Agent, each component and its parts by weight dosage of component B are as follows:
In use, component A is uniformly mixed by weight 1:1 Ji Wei aircraft skin varnish 2# with component B.
Embodiment 3
By each material of formula ratio precise, by 77 parts of poly-lactone polyol resin PCL-2000, trimethylolpropane 4
Part, 3 parts of pentaerythrite, 36 parts of hydroxy-terminated polysiloxane resin PSi-800,32 parts of butyl acetate, propylene glycol methyl ether acetate 32
Part reflux dewatering 2~4 hours after being cooled to 40 DEG C or less, is first added 10 parts of HDI (hexamethylene diisocyanate), is passed through nitrogen
Gas reacts 10 hours at 80 DEG C, is added 0.0001 part of dibutyl tin dilaurate, adds IPDI (two isocyanide of isophorone
Acid esters) 6 parts, reacted 4 hours at 100 DEG C, after being cooled to 60 DEG C or less, be filtered discharging with 200 mesh filter bags, obtain from
Si modification hydroxy resin finished product processed, solvent for use are polyurethane grade solvent.
Aircraft skin varnish is prepared with self-control Si modification hydroxy resin, each component and its parts by weight of component A is used
Amount are as follows:
Using commercially available aliphatic isocyanates curing agent Desmodur N75, Desmodur N3390, Desmodur
Z4470 is as varnish curing agent, each component and its parts by weight dosage of component B are as follows:
In use, component A is uniformly mixed by weight 1:1 Ji Wei aircraft skin varnish 3# with component B.
To weatherability made from embodiment 1, embodiment 2 and embodiment 3 and toughness and excellent aircraft skin varnish into
Row performance detection, detection method press relevant criterion progress, are as a result listed in table 1.
Table 1
As can be seen from Table 1, varnish of the invention and base coat matching are good, and paint film is tough, can be subjected to high/low temperature
Impact, has the performances such as excellent guarantor's color gloss retention, good resistance to medium, and coating property fully meets the anti-of aircraft skin
Shield and finishing requirements.
Claims (10)
1. a kind of weatherability and toughness and excellent aircraft skin varnish, are made of, which is characterized in that group component A and component B
Divide each component and its parts by weight dosage of A are as follows: self-control Si modification hydroxy resin 50~60, toughened resin 4~10, drier 0.1
~1, levelling agent 0.1~1, ultraviolet absorbing agent 0.1~1, hindered amine stabilizer 0.1~1, mixed solvent 35~45；Component B's
Each component and its parts by weight dosage are as follows: aliphatic isocyanates curing agent 65~75, mixed solvent 25~35.
2. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
The specific preparation process for stating the self-control Si modification hydroxy resin in component A is as follows: by each material of formula ratio precise, by polyester
Polyol resin, monomeric polyol, silicon-containing polymer resin, mixed solvent reflux dewatering 2~4 hours, are cooled to 40 DEG C or less
Afterwards, at least one diisocyanate disposably or is in batches added, is passed through inert gas, it is small that 4~12 are reacted at 60~110 DEG C
When, add a kind of catalyst, reacted 2~6 hours at 70~120 DEG C, after being cooled to 60 DEG C or less, with 200 mesh filter bags into
Row filtering and discharging, obtains Si modification hydroxy resin finished product, and solvent for use is polyurethane grade solvent.The polyester polyol tree
Rouge is the liner polyesterdiols resin of hydroxyl, and number-average molecular weight is 500~2500；The monomeric polyol is new penta 2
One or more of alcohol, trimethylolpropane, pentaerythrite；The silicon-containing polymer resin is hydroxy-terminated polysiloxane tree
Rouge, number-average molecular weight are 800~2000；The mixed solvent is butyl acetate, in propylene glycol methyl ether acetate, cyclohexanone
It is one or more of；The diisocyanate is aliphatic and/or alicyclic diisocyanate；The catalyst is tin dilaurate two
One or more of butyl tin, stannous octoate, butyl titanate.
3. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating the toughened resin in component A is aliphatic or alicyclic superbrnaching end-hydroxy resin, and number-average molecular weight is 500~1500,
Every mole of hydroxyl quantity is 5~15.
4. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating the drier in component A is one or more of dibutyl tin dilaurate, stannous octoate, organo-bismuth.
5. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating the levelling agent in component A is one or more of BYK306, BYK358, BYK331.
6. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating ultraviolet absorbing agent in component A is benzotriazole ultraviolet absorbent, be TINUVIN1130, TINUVIN320,
One or more of TINUVIN360.
7. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating the hindered amine stabilizer in component A is one or more of TINUVIN292, TINUVIN123.
8. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating the mixed solvent in component A is dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate, 2-HEPTANONE, butyl acetic acid
One or more of ester.
9. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that institute
Stating the aliphatic isocyanates curing agent in component B is Desmodur N75, in Desmodur N3390, Desmodur Z4470
One or more.
10. a kind of weatherability according to claim 1 and toughness and excellent aircraft skin varnish, which is characterized in that
Mixed solvent in the component B is one or more of dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964428A (en) * | 2019-12-19 | 2020-04-07 | 株洲市九华新材料涂装实业有限公司 | Double-component hyperbranched polyester resin high-solid-content high-gloss varnish for urban rails and motor train bodies and preparation method thereof |
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| CN110964428A (en) * | 2019-12-19 | 2020-04-07 | 株洲市九华新材料涂装实业有限公司 | Double-component hyperbranched polyester resin high-solid-content high-gloss varnish for urban rails and motor train bodies and preparation method thereof |
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