CN106497018B - A kind of Multi-component Polyurethane gap filler and preparation method thereof - Google Patents
A kind of Multi-component Polyurethane gap filler and preparation method thereof Download PDFInfo
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- CN106497018B CN106497018B CN201610979681.XA CN201610979681A CN106497018B CN 106497018 B CN106497018 B CN 106497018B CN 201610979681 A CN201610979681 A CN 201610979681A CN 106497018 B CN106497018 B CN 106497018B
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- component
- gap filler
- hydroxy group
- polyurethane gap
- polyester resin
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- 239000000945 filler Substances 0.000 title claims abstract description 49
- 239000004814 polyurethane Substances 0.000 title claims abstract description 43
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims description 20
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 34
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 30
- 239000000975 dye Substances 0.000 claims abstract description 29
- 239000004645 polyester resin Substances 0.000 claims abstract description 24
- 229920001225 polyester resin Polymers 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- MZZSDCJQCLYLLL-UHFFFAOYSA-N Secalonsaeure A Natural products COC(=O)C12OC3C(CC1=C(O)CC(C)C2O)C(=CC=C3c4ccc(O)c5C(=O)C6=C(O)CC(C)C(O)C6(Oc45)C(=O)OC)O MZZSDCJQCLYLLL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000012948 isocyanate Substances 0.000 claims abstract description 7
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical class [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 7
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 claims description 3
- IAUKWGFWINVWKS-UHFFFAOYSA-N 1,2-di(propan-2-yl)naphthalene Chemical group C1=CC=CC2=C(C(C)C)C(C(C)C)=CC=C21 IAUKWGFWINVWKS-UHFFFAOYSA-N 0.000 claims description 2
- 241000625836 Ochrolechia Species 0.000 claims description 2
- 239000001045 blue dye Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 3
- 239000004593 Epoxy Substances 0.000 abstract description 2
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 239000011152 fibreglass Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- HMAMGXMFMCAOPV-UHFFFAOYSA-N 1-propylnaphthalene Chemical compound C1=CC=C2C(CCC)=CC=CC2=C1 HMAMGXMFMCAOPV-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- 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
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K5/01—Hydrocarbons
-
- 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
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
- C08K5/57—Organo-tin compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
The invention discloses a kind of Multi-component Polyurethane gap filler, including component A, B component and component C, the component A includes following raw material: aliphatic branched hydroxy group polyester resin, pigment A, zinc stearate, organobentonite, thinner；The B component includes following raw material: solvent-free aliphatic polymeric isocyanate resin, organic dyestuff B；The component C includes following raw material: aliphatic branched hydroxy group polyester resin, promotor, organic dyestuff C.It is used in polyurethane gap filler component A of the invention
Description
Technical field
The invention belongs to gap filler field more particularly to a kind of solvent-free normal temperature cure Multi-component Polyurethane gap filler and its
Preparation method, which repairs after being suitable for the molding of priming by vacuum class glass fiber reinforced plastics product or the bare wire of explosion-proof electric apparatus connects
Head encapsulation is used.
Background technique
Glass-reinforced plastic material is not sun-proof, but has the advantages that high-low temperature resistant, wet-heat resisting, corrosion-resistant and at low cost etc. various, so
It is widely used in always under various severe natural conditions, and dosage increases year by year.Weather resistant protection painting is done in glass fiber reinforced plastics product
It is just inevitable when dress largely to use levelling repairing gap filler.Explosion-proof electric apparatus bare wire connector is carried out using electrical-insulation polymeric material
Joint filling protection is encapsulated, can prevent electric spark from being formed.
Currently, most of gap filler is all aromatic urethane gap filler in the market, weather resistance is bad, when glass reinforced plastic wind
After electric blade coating abrasion totally, putty layer (i.e. joint filling layer) will receive light aging effect and fail；And current gap filler
Be substantially two-component, two-component gap filler using when mix after the up time there was only short a few minutes, seriously affect construction
Quality and final performance.For example, to disclose a kind of rotor poly- with solvent-free two-component for Chinese patent application 201110377622.2
Urethane putty, the membrane formation mechanism of the putty are using hydroxy resin, PAPI (polymeric diphenylmethane polyisocyanates) and to be modified
The polyurethane filling material for the reticular structure that MDI (methyl diphenylene diisocyanate) reaction generates, the polyurethane filling material
Weather resistance is bad, and putty layer is vulnerable；And the material is also two-component materials, the mixed workable time is not grown,
Influence its performance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, provide one
Solvent-free normal temperature cure Multi-component Polyurethane gap filler of kind and preparation method thereof, which is with aliphatic branch hydroxyl
Base resin and hexamethylene diisocyanate polymer are that film forming matter reaction generates aliphatic polyurethane gap filler, are free of phenyl ring etc. in product
Chromophoric group, ageing-resistant performance is good, is the ideal repair products of expoxy glass steel part, is the excellent of explosion-proof electric apparatus bare wire connector
Insulative potting material.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of Multi-component Polyurethane gap filler, including tri- components of A, B and C, in parts by weight, the component A include with
Lower raw material:
The B component includes following raw material:
99.5~99.8 parts of solvent-free aliphatic polymeric isocyanate resin,
0.2~0.5 part of organic dyestuff B；
The component C includes following raw material:
9.45~9.78 parts of aliphatic branched hydroxy group polyester resin,
0.2~0.5 part of promotor,
0.02~0.05 part of organic dyestuff C.
By component A and B component be in mass ratio (3~4) when use: 1 ratio is uniformly mixed (having in B component at this time
Engine dyeing material B is by two component mixture uniform colorings)；Then the C of A, B mixture quality 2%~5% is added in A, B mixture
Component is uniformly mixed (the organic dyestuff C in component C makes mixture uniform coloring at this time) again, i.e., smearable construction.
The present invention has been separately added into three kinds of different pigment in multicomponent can distinguish when being mutually mixed before use
It shows that strong color contrast is poor, judges whether three components are uniformly mixed with this.
Above-mentioned polyurethane gap filler, it is preferred that further include 5~15 parts in the raw material of component AActivated molecular sieve powder.
Above-mentioned polyurethane gap filler, it is preferred that the aliphatic branched hydroxy group polyester resin is following formula (I), formula
(II) and the mixture of (III) three kind of structural resin of formula:
Wherein, R1、R3、R4And R6Selected from CH3、C2H5、C3H7And C4H9Any one of；R2And R5For CH2、C2H4、C3H6With
C4H8Any one of.
Above-mentioned polyurethane gap filler, it is preferred that the aliphatic branched hydroxy group polyester resin is liquid at normal temperature, no
Range of viscosities is 500mPas~1500mPas at fugitive constituent >=99.8%, 25 DEG C, and hydroxy radical content is 5%~10%, water
Content < 0.2%；The content refers both to mass content.
Above-mentioned polyurethane gap filler, it is preferred that the solvent-free aliphatic polymeric isocyanate resin is Bayer N3600.
Above-mentioned polyurethane gap filler, it is preferred that the pigment A is the mixed of rutile type titanium white and 800 mesh talcum powder
Close object；The organic dyestuff B is any one of organic scarlet dye, cudbear and blue dyes；The organic dyestuff C is
Black dyes.
Above-mentioned polyurethane gap filler, it is preferred that the thinner is to refer to diisopropyl naphthalene, and the promotor is T-22 tetra-
Valence organo-tin compound, it is preferred that the promotor is the modest TIN-22 tetravalence organo-tin compound of this moral of hamming.
The inventive concept total as one, the present invention also provides a kind of preparation method of above-mentioned polyurethane gap filler, packets
Include following steps:
(1) component A prepare: by aliphatic branched hydroxy group polyester resin, zinc stearate, organobentonite, thinner,
Activated molecular sieve powder and pigment A high speed dispersion are uniform；Obtained finely dispersed mixture is first soaked, fineness is then ground to
At 30 μm hereinafter, obtaining component A；
(2) prepared by B component: by solvent-free aliphatic polymeric isocyanate and organic dyestuff B investment vacuum reaction kettle, side is taken out
Vacuum side middling speed disperse 3~10min after sealed package to get arrive B component；
(3) component C prepare: by aliphatic branched hydroxy group polyester resin, promotor and organic dyestuff C high speed dispersion 5min~
After 10min sealed package to get arrive component C.
Above-mentioned preparation method, it is preferred that the process specific steps of the component A preparation are as follows: first by aliphatic branch hydroxyl
Base polyester resin, zinc stearate, organobentonite, thinner andActivated molecular sieve powder high speed dispersion is uniform, in the same of dispersion
When be slowly added to pigment A, after pigment A is added completely into, continue high speed dispersion 15min~30min；Then obtained dispersion is equal
Even mixture first soaks 4h, and then fineness of grind is to 30 μm hereinafter, obtaining component A.
Above-mentioned preparation method, it is preferred that the linear velocity of the high speed dispersion is 6~12m/s；The line of the middling speed dispersion
Speed is 3~5m/s.
Above-mentioned preparation method, it is preferred that the pigment A needs to be dried before use.
Compared with the prior art, the advantages of the present invention are as follows:
(1) polyurethane gap filler of the invention has excellent weatherability, can be protected using polyurethane gap filler of the invention
Shield glass epoxy substrate 10 years or more.
(2) polyurethane gap filler of the invention solidifies at normal temperature, good toughness after solidification, is resistant to sandstone impact and abrasion；
Adhesive force is high, and has good electrical insulation capability.
(3) polyurethane gap filler of the invention is used in mixed way using multicomponent, and system viscosity is low after mixing and thixotropy is good,
It is easy to scratch；The time that can be scratched is longer, reaches 24min or more.
(4) it is used in polyurethane gap filler component A of the inventionActivated molecular sieve powder is dehydration filler, is successfully solved
The common fault that current polyurethane gap filler product of having determined blisters in wet condition.
(5) it joined promotor in the raw material of polyurethane gap filler of the invention, can be controlled by the additional amount of promotor
The curing rate of the polyurethane gap filler adapts to varying environment temperature and uses, adaptable.
Specific embodiment
To facilitate the understanding of the present invention, hereafter preferred embodiment does invention herein and more comprehensively, meticulously describes, but
Protection scope of the present invention is not limited to following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter are generally understood meaning phase with those skilled in the art
Together.Technical term used herein is intended merely to the purpose of description specific embodiment, and it is of the invention to be not intended to limitation
Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1:
A kind of Multi-component Polyurethane gap filler, including tri- components of A, B and C, wherein component A includes:
B component includes:
Bayer N3600 99.8kg,
Organic scarlet dye 0.2kg；
Component C includes:
Aliphatic branched hydroxy group polyester resin 9.78kg,
The modest T-22 tetravalence organo-tin compound 0.2kg of this moral of promotor hamming,
Organic black dyes 0.02kg.
The aliphatic branched hydroxy group polyester resin is the mixing of (III) three kind of following formula (I), formula (II) and formula structural resin
Object:
The non-volatile part of aliphatic branched hydroxy group polyester resin is 99.8%, and viscosity is 1200mPas, hydroxyl at 25 DEG C
Base content is 9%, water content 0.1%.
The preparation method of the Multi-component Polyurethane gap filler of the present embodiment, comprising the following steps:
(1) 10kg rutile type titanium white, 800 mesh talcum powder of 36kg are dried and removed by water using powder combination drying machine
It is sealed after part stand-by；
(2) 30kg aliphatic branched hydroxy group polyethers/ester resin, 5kg zinc stearate, 2kg organobentonite, 5kg bis- is different
Propyl naphthalene and 12kgMolecular sieve powder pours into material cylinder high speed dispersion (linear velocity 6-12m/s) uniformly together, slow while dispersion
It is slow that step (1) resulting 46kg dried pigment is added, and continue high speed dispersion 15min；Then wetting 4h or so is shut down, then is used
Three-roll grinder is ground to fineness at 30 μm hereinafter, obtaining component A；
(3) by 99.8kg Bayer N3600 and 0.2kg organic scarlet dye investment vacuum reaction kettle, when vacuumizing in
Sealed package is after speed dispersion (linear velocity 3-5m/s) 3min to get B component；
(4) by 9.78kg aliphatic branched hydroxy group polyester resin, 0.2kg promotor T-22 tetravalence organo-tin compound and
Sealed package is after 0.02kg black organic dyestuff puts into material cylinder high speed dispersion 5min together up to putty component C.
Above-mentioned resulting component A and B component are uniformly mixed by the mass ratio of 4:1 when use, at this time large red in B component
The mixture of two components is uniformly dyed red by dyestuff；Then component C is added again (accounts for two component mixture weight of A, B
2.5%) it, is uniformly mixed again, component C black dyes makes mixture large red uniformly dimmed at this time, and resulting mixture is
It can knife-coat application.
Embodiment 2:
A kind of Multi-component Polyurethane gap filler, including tri- components of A, B and C, wherein component A includes:
B component includes:
Bayer N3600 99.7kg,
Organic scarlet dye 0.3kg；
Component C includes:
Aliphatic branched hydroxy group polyester resin 9.67kg,
T-22 tetravalence organo-tin compound 0.3kg,
Organic black dyes 0.03kg.
The aliphatic branched hydroxy group polyester resin is the mixing of (III) three kind of following formula (I), formula (II) and formula structural resin
Object:
The non-volatile part 99.8% of aliphatic branched hydroxy group polyester resin, viscosity is 1100mPas, hydroxyl at 25 DEG C
Content is 9.5%, water content 0.1%.
The preparation method of the solvent-free normal temperature cure Multi-component Polyurethane gap filler of the present embodiment, with the system in embodiment 1
Preparation Method is identical.
Component A and B component are uniformly mixed by the mass ratio of 3.5:1 when use；Then component C is added again (accounts for two groups of A, B
Divide the 2% of mixture weight), it is uniformly mixed again, resulting mixture can knife-coat application.
Embodiment 3:
A kind of Multi-component Polyurethane gap filler, including tri- components of A, B and C, wherein component A includes:
B component includes:
Bayer N3600 99.5kg,
Organic scarlet dye 0.5kg；
Component C includes:
Aliphatic branched hydroxy group polyester resin 9.45kg,
Promotor T-22 tetravalence organo-tin compound 0.5kg,
Organic black dyes 0.05kg.
The aliphatic branched hydroxy group polyester resin is the mixing of (III) three kind of following formula (I), formula (II) and formula structural resin
Object:
The non-volatile part 99.8% of aliphatic branched hydroxy group polyester resin, viscosity is 900mPas at 25 DEG C, and hydroxyl contains
Amount is 10%, water content 0.1%.
The preparation method of the solvent-free normal temperature cure Multi-component Polyurethane gap filler of the present embodiment, with the system in embodiment 1
Preparation Method is identical.
Component A and B component are uniformly mixed by the mass ratio of 3:1 when use；Then component C is added again (accounts for two component of A, B
The 2% of mixture weight), it is uniformly mixed again, resulting mixture can knife-coat application.
The performance of the Multi-component Polyurethane gap filler of above-mentioned 3 embodiments preparation is shown in Table 1.
Each embodiment properties of product testing result of table 1
As shown in Table 1, polyurethane gap filler system viscosity prepared by the present invention is low and thixotropy is good, is easy to scratch；It can scrape
The time of painting is longer, reaches 24min or more；Good toughness after solidification is resistant to sandstone impact and abrasion；Adhesive force is high, and has good
Good electrical insulation capability；With excellent weatherability, and polyurethane gap filler prepared by the present invention has excellent bendability
Energy and impact property.
Claims (9)
1. a kind of Multi-component Polyurethane gap filler, which is characterized in that including component A, B component and component C, in parts by weight, institute
Stating component A includes following raw material:
The B component includes following raw material:
99.5~99.8 parts of solvent-free aliphatic polymeric isocyanate resin,
0.2~0.5 part of organic dyestuff B；
The component C includes following raw material:
9.45~9.78 parts of aliphatic branched hydroxy group polyester resin,
0.2~0.5 part of promotor,
0.02~0.05 part of organic dyestuff C；
Wherein, the aliphatic branched hydroxy group polyester resin be following formula (I), (III) three kind of structural resin of formula (II) and formula mix
Close object:
Wherein, R1、R3、R4And R6Selected from CH3、C2H5、C3H7And C4H9Any one of；R2And R5For CH2、C2H4、C3H6And C4H8In
It is any.
2. polyurethane gap filler as described in claim 1, which is characterized in that the raw material of the component A further includes 5~15 parts
Activated molecular sieve powder.
3. polyurethane gap filler as described in claim 1, which is characterized in that the aliphatic branched hydroxy group polyester resin is normal
Temperature lower is liquid, and viscosity is 500mPas~1500mPas at non-volatile part >=99.8%, 25 DEG C, hydroxy radical content is 5%~
10%, water content < 0.2%.
4. polyurethane gap filler as described in claim 1, which is characterized in that the solvent-free aliphatic polymeric isocyanate resin
For Bayer N3600；The pigment A is the mixture of rutile type titanium white and 800 mesh talcum powder；The organic dyestuff B is to have
Any one of machine scarlet dye, cudbear and blue dyes；The organic dyestuff C is black dyes.
5. polyurethane gap filler as described in claim 1, which is characterized in that the thinner is diisopropyl naphthalene, the rush
It is T-22 tetravalence organo-tin compound into agent.
6. a kind of preparation method of polyurethane gap filler as claimed in any one of claims 1 to 5, which is characterized in that including with
Lower step:
(1) component A prepare: by aliphatic branched hydroxy group polyester resin, zinc stearate, organobentonite, thinner,Activation point
Son sieve powder and pigment A high speed dispersion are uniform；Obtained finely dispersed mixture is first soaked, is then ground to fineness at 30 μm
Hereinafter, obtaining component A；
(2) prepared by B component: solvent-free aliphatic polymeric isocyanate and organic dyestuff B being put into vacuum reaction kettle, while vacuumizing
Side middling speed disperse 3~10min after sealed package to get arrive B component；
(3) component C prepare: by aliphatic branched hydroxy group polyester resin, promotor and organic dyestuff C high speed dispersion 5min~
After 10min sealed package to get arrive component C.
7. preparation method as claimed in claim 6, which is characterized in that the process specific steps of the component A preparation are as follows: first will
Aliphatic branched hydroxy group polyester resin, zinc stearate, organobentonite, thinner andActivated molecular sieve powder high speed dispersion is equal
It is even, it is slowly added to pigment A while dispersion, after pigment A is added completely into, continues high speed dispersion 15min~30min；Then
Obtained finely dispersed mixture is first soaked into 4-24h, is then ground to fineness to 30 μm hereinafter, obtaining component A.
8. preparation method as claimed in claims 6 or 7, which is characterized in that the linear velocity of the high speed dispersion is 6~12m/s；
The linear velocity of the middling speed dispersion is 3~5m/s.
9. preparation method as claimed in claims 6 or 7, which is characterized in that the pigment A needs to be dried before use.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998005696A1 (en) * | 1996-08-01 | 1998-02-12 | Wolff Walsrode Ag | Aqueous dispersions, their preparation and use as paint binders |
| CN102250505A (en) * | 2011-07-27 | 2011-11-23 | 株洲时代电气绝缘有限责任公司 | Putty for repairing aerogenerator blade and preparation method therefore |
| CN104387829A (en) * | 2014-11-03 | 2015-03-04 | 中山大桥化工企业集团中山智亨实业发展有限公司 | Polyurethane elastic putty for locomotive repair and preparation method of polyurethane elastic putty |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998005696A1 (en) * | 1996-08-01 | 1998-02-12 | Wolff Walsrode Ag | Aqueous dispersions, their preparation and use as paint binders |
| CN102250505A (en) * | 2011-07-27 | 2011-11-23 | 株洲时代电气绝缘有限责任公司 | Putty for repairing aerogenerator blade and preparation method therefore |
| CN104387829A (en) * | 2014-11-03 | 2015-03-04 | 中山大桥化工企业集团中山智亨实业发展有限公司 | Polyurethane elastic putty for locomotive repair and preparation method of polyurethane elastic putty |
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