CN106047131B - A kind of self-closing's polyurethane water-proof paint and preparation method thereof - Google Patents
A kind of self-closing's polyurethane water-proof paint and preparation method thereof Download PDFInfo
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- CN106047131B CN106047131B CN201610358706.4A CN201610358706A CN106047131B CN 106047131 B CN106047131 B CN 106047131B CN 201610358706 A CN201610358706 A CN 201610358706A CN 106047131 B CN106047131 B CN 106047131B
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- 239000003973 paint Substances 0.000 title claims abstract description 40
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 25
- 239000004814 polyurethane Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 21
- 239000002904 solvent Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000005871 repellent Substances 0.000 claims abstract description 16
- 239000004970 Chain extender Substances 0.000 claims abstract description 12
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 11
- 235000011037 adipic acid Nutrition 0.000 claims abstract description 11
- 239000001361 adipic acid Substances 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 11
- 239000000440 bentonite Substances 0.000 claims abstract description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- LNDKRVOOYMEYTC-UHFFFAOYSA-N buta-1,3-dien-1-ol Chemical compound OC=CC=C LNDKRVOOYMEYTC-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012975 dibutyltin dilaurate Substances 0.000 claims abstract description 11
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims abstract description 11
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims abstract description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 10
- NUKZAGXMHTUAFE-UHFFFAOYSA-N methyl hexanoate Chemical compound CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012188 paraffin wax Substances 0.000 claims abstract description 10
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013530 defoamer Substances 0.000 claims abstract description 7
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 238000010792 warming Methods 0.000 claims description 15
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- -1 isooctyl Chemical group 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- NSPSPMKCKIPQBH-UHFFFAOYSA-K bismuth;7,7-dimethyloctanoate Chemical compound [Bi+3].CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O NSPSPMKCKIPQBH-UHFFFAOYSA-K 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims 1
- UQOQXWZPXFPRBR-UHFFFAOYSA-K bismuth dodecanoate Chemical compound [Bi+3].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O UQOQXWZPXFPRBR-UHFFFAOYSA-K 0.000 claims 1
- 238000005660 chlorination reaction Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 239000001993 wax Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229920001451 polypropylene glycol Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4063—Mixtures of compounds of group C08G18/62 with other macromolecular compounds
-
- 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
- C08G18/48—Polyethers
-
- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6204—Polymers of olefins
-
- 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
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention provides a kind of self-closing's polyurethane water-proof paint, is related to water-repellent paint field, is made up of two kinds of components of A, B；Wherein, the component A by following weight than raw material form：7 10 parts of adipic acid, 18 24 parts of HMDI, 18 20 parts of 2,6 two isocyanate group methyl caproate, 0.1 0.3 parts of stannous octoate, 40 55 parts of PPG, 0.1 0.3 parts of DBTL；The B component by following weight than raw material form：10 25 parts of end hydroxy butadiene, 10 20 parts of precipitated calcium carbonate, 15 25 parts of bentonite, 46 parts of white carbon, 15 35 parts of curing agent, 0.1 0.5 parts of organo-bismuth, 20 30 parts of solvent naphtha, 12 parts of defoamer, 15 25 parts of chain extender, 40 55 parts of chlorinated paraffin；The problem of to improve existing water-repellent paint weatherability difference；The dereism of polyurethane water-proof paint is improved simultaneously.Present invention also offers a kind of preparation method of self-closing's polyurethane water-proof paint.
Description
Technical field
The invention belongs to water-repellent paint field, concretely relates to a kind of self-closing's polyurethane water-proof paint and its preparation
Method.
Background technology
Water-repellent paint is brushed or is sprayed in the substrate surface for needing to carry out water-proofing treatment, can meet industrial to build with civilian
The water leakage requirement at the positions such as roofing, basement, interior wall and the exterior wall built.With the development of building trade, all kinds of waterproofs
The development and application of coating are developed rapidly, and the quality and performance to building water-proof paint propose higher requirement.It is common
The problem of be that in the presence of acid rain or external force damage, outermost layer is damaged, and then interior exposed to outermost coating is built
The waterproof layer put is destroyed, and coating is reduced the protective capability of architecture noumenon；And after these situations occur, water-repellent paint by
It is self-closing in that can not realize, so cause it is increasingly severe, until that can not be continuing with.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of self-closing's polyurethane water-proof paint and preparation method thereof.With
The problem of improving existing water-repellent paint weatherability difference；The dereism of polyurethane water-proof paint is improved simultaneously, it is damaged by external force
After bad, 16-20h realizes that crack is impermeable.
To reach above-mentioned purpose, the technical solution used in the present invention is：
A kind of self-closing's polyurethane water-proof paint, it is made up of two kinds of components of A, B；Wherein, the component A is by following weight ratio
Raw material composition：Adipic acid 7-10 parts, HMDI 18-24 parts, the isocyanate group methyl caproate 18-20 parts of 2,6- bis-, stannous octoate
0.1-0.3 parts, PPG 40-55 parts, DBTL 0.1-0.3 parts；The B component by following weight than raw material form：
End hydroxy butadiene 10-25 parts, precipitated calcium carbonate 10-20 parts, bentonite 15-25 parts, white carbon 4-6 parts, curing agent 15-35
Part, organo-bismuth 0.1-0.5 parts, solvent naphtha 20-30 parts, defoamer 1-2 parts, chain extender 15-25 parts, chlorinated paraffin 40-55 parts.
Preferably, in an embodiment of the present invention, the mass ratio of two kinds of components of A, B is A components：B component=2:1-
3:1
Preferably, in an embodiment of the present invention, the curing agent is triethyl group triamine.
Preferably, in an embodiment of the present invention, the solvent naphtha is isoparaffin solvent oil.
Preferably, in an embodiment of the present invention, the organo-bismuth is in isooctyl acid bismuth, Yue Gui Jiao acid bismuths and bismuth neodecanoate
Any one.
Present invention also offers a kind of preparation method of self-closing's polyurethane water-proof paint, comprise the following steps：
（1）It is prepared by component A：
The adipic acid is added into reactor one, with 0.6-0.8m3/ h is passed through nitrogen, is warming up to 65-75 DEG C；To mixing
2, the 6- diisocyanate base methyl caproate and the HMDI are added in tank, with rotating speed 75-80 r/min, stirs 9-
11min, the liquid in the blending tank is slowly dropped in the reactor one；Described in being added into the reactor one
DBTL, the stannous octoate, 85-90 DEG C is warming up to, 70-80 r/min stirring reactions 1.5-2.5h；Nitrogen is closed, is added
The PPG, under the conditions of 110-120 DEG C, the .06MPa of -0 .05~-0, vacuum dehydration 1-2h；Cool to 55-65
DEG C, produce A components；
（2）It is prepared by B component
The end hydroxy butadiene is added in reactor two, is warming up to 90-110 DEG C, add the precipitated calcium carbonate,
The bentonite, the white carbon, disperse 10-20min, rotating speed 350-450r/min；The reactor two is cooled to 70-
80 DEG C, the curing agent, the organo-bismuth, the solvent naphtha, the defoamer, the chain extender, the chlorinated paraffin are added,
30-50min is stirred with 100-120r/min；At 110-120 DEG C, vacuum dehydration 0.5-1h, vacuum pressure is -0 .05~-0
.06MPa；55-65 DEG C is cooled to, produces B component；
（3）Prepare water-repellent paint：
The component A and the B components are mixed in proportion can form self-closing's polyurethane water-proof paint.
Beneficial effects of the present invention：Water-repellent paint weatherability provided by the present invention is strong；The addition of chain extender can enter one
Step expands the strand of formed B component, further to improve cohesive；Because the coating is using polyurethane as material of main part,
A certain proportion of plasticizer, inorganic filler are added, the coating has durable, corrosion resistant feature, when there is external force stress,
It can be deformed immediately, hence in so that it has the characteristics of stress is hardly damaged；After coating is by destroying, on long-chain molecule
Hydrogen bond can play crosslinked action, realize that self is closed, and can effectively solve the destroyed caused seepy question of polyurethane water-proof layer.
Technical scheme of the present invention is further described with reference to specific embodiment.
Embodiment 1：
A kind of self-closing's polyurethane water-proof paint, it is made up of two kinds of components of A, B；Wherein, component A by following weight than original
Material composition：7 parts of adipic acid, 18 parts of HMDI, 18 parts of 2,6-, bis- isocyanate group methyl caproates, 0.1 part of stannous octoate, polyether polyols
40 parts of alcohol, 0.1 part of DBTL；B component by following weight than raw material form：10 parts of end hydroxy butadiene, precipitated calcium carbonate
10 parts, 15 parts of bentonite, 4 parts of white carbon, 15 parts of curing agent, 0.1 part of organo-bismuth, 20 parts of solvent naphtha, 1 part of defoamer, chain extender
15 parts, 40 parts of chlorinated paraffin.
A, the mass ratio of two kinds of components of B is A components：B component=2:1..
Curing agent is triethyl group triamine.
Solvent naphtha is isoparaffin solvent oil.
Organo-bismuth is isooctyl acid bismuth.
The present embodiment additionally provides a kind of preparation method of self-closing's polyurethane water-proof paint, comprises the following steps：
（1）It is prepared by component A：
Adipic acid is added into reactor one, with 0.6m3/ h is passed through nitrogen, is warming up to 65 DEG C；2 are added into blending tank,
6- diisocyanate base methyl caproates and HMDI, with the r/min of rotating speed 75,9min is stirred, the liquid in blending tank is slowly dripped
It is added in reactor one；DBTL, stannous octoate are added into reactor one, is warming up to 85 DEG C, 70r/min stirring reactions 1.5h；
Nitrogen is closed, adds PPG, under the conditions of 110 DEG C, -0 .05MPa, vacuum dehydration 1h；55 DEG C are cooled to, is produced
A components；
（2）It is prepared by B component
End hydroxy butadiene is added in reactor two, is warming up to 90 DEG C, adds precipitated calcium carbonate, bentonite, hard charcoal
It is black, disperse 10min, rotating speed 350r/min；Reactor two is cooled to 70 DEG C, curing agent, organo-bismuth is added, solvent naphtha, disappears
Infusion, chain extender, chlorinated paraffin, 30min is stirred with 100r/min；At 110 DEG C, vacuum dehydration 0.5h, vacuum pressure is -0
.05MPa；55 DEG C are cooled to, produces B component；
（3）Prepare water-repellent paint：
Component A and B components are mixed in proportion can form self-closing's polyurethane water-proof paint.
Embodiment 2：
A kind of self-closing's polyurethane water-proof paint, it is made up of two kinds of components of A, B；Wherein, component A by following weight than original
Material composition：Adipic acid 7-10 parts, 24 parts of HMDI, 20 parts of 2,6-, bis- isocyanate group methyl caproates, stannous octoate 0.1-0.3
Part, 55 parts of PPG, 0.3 part of DBTL；B component by following weight than raw material form：25 parts of end hydroxy butadiene,
20 parts of precipitated calcium carbonate, 25 parts of bentonite, 6 parts of white carbon, curing agent 15-35 parts, 0.5 part of organo-bismuth, 30 parts of solvent naphtha, defoaming
2 parts of agent, 25 parts of chain extender, 55 parts of chlorinated paraffin.
A, the mass ratio of two kinds of components of B is A components：B component=3:1
Curing agent is triethyl group triamine.
Solvent naphtha is isoparaffin solvent oil.
Organo-bismuth is isooctyl acid bismuth.
The present embodiment additionally provides a kind of preparation method of self-closing's polyurethane water-proof paint, comprises the following steps：
（1）It is prepared by component A：
Adipic acid is added into reactor one, with 0.8m3/ h is passed through nitrogen, is warming up to 75 DEG C；2 are added into blending tank,
6- diisocyanate base methyl caproates and HMDI, with the r/min of rotating speed 80,11min is stirred, the liquid in blending tank is slowly dripped
It is added in reactor one；DBTL, stannous octoate are added into reactor one, is warming up to 90 DEG C, 80 r/min stirring reactions
2.5h；Nitrogen is closed, adds PPG, under the conditions of 120 DEG C, -0 .06MPa, vacuum dehydration 2h；65 DEG C are cooled to,
Produce A components；
（2）It is prepared by B component
End hydroxy butadiene is added in reactor two, is warming up to 110 DEG C, adds precipitated calcium carbonate, bentonite, hard charcoal
It is black, disperse 20min, rotating speed 450r/min；Reactor two is cooled to 80 DEG C, curing agent, organo-bismuth is added, solvent naphtha, disappears
Infusion, chain extender, chlorinated paraffin, 50min is stirred with 120r/min；At 120 DEG C, vacuum dehydration 1h, vacuum pressure is -0
.06MPa；65 DEG C are cooled to, produces B component；
（3）Prepare water-repellent paint：
Component A and B components are mixed in proportion can form self-closing's polyurethane water-proof paint.
Embodiment 3：
A kind of self-closing's polyurethane water-proof paint, it is made up of two kinds of components of A, B；Wherein, component A by following weight than original
Material composition：8.5 parts of adipic acid, 21 parts of HMDI, 19 parts of 2,6-, bis- isocyanate group methyl caproates, 0.2 part of stannous octoate, polyethers
47 parts of polyalcohol, 0.2 part of DBTL；B component by following weight than raw material form：17 parts of end hydroxy butadiene, lightweight carbon
Sour 15 parts of calcium, 20 parts of bentonite, 5 parts of white carbon, 25 parts of curing agent, 0.3 part of organo-bismuth, 25 parts of solvent naphtha, 1.5 parts of defoamer,
20 parts of chain extender, 47 parts of chlorinated paraffin.
A, the mass ratio of two kinds of components of B is A components：B component=2.5:1
Curing agent is triethyl group triamine.
Solvent naphtha is isoparaffin solvent oil.
Organo-bismuth is isooctyl acid bismuth.
The present embodiment additionally provides a kind of preparation method of self-closing's polyurethane water-proof paint, comprises the following steps：
(1) prepared by component A：
Adipic acid is added into reactor one, with 0.7m3/ h is passed through nitrogen, is warming up to 70 DEG C；2 are added into blending tank,
6- diisocyanate base methyl caproates and HMDI, with rotating speed 77r/min, 10min is stirred, the liquid in blending tank is slowly dripped
It is added in reactor one；DBTL, stannous octoate are added into reactor one, is warming up to 87 DEG C, 75 r/min stirring reactions 2h；
Nitrogen is closed, adds PPG, under the conditions of 115 DEG C, -0 .055MPa, vacuum dehydration 1.5h；60 DEG C are cooled to, i.e.,
Obtain A components；
(2) prepared by B component
End hydroxy butadiene is added in reactor two, is warming up to 100 DEG C, adds precipitated calcium carbonate, bentonite, hard charcoal
It is black, disperse 15min, rotating speed 400r/min；Reactor two is cooled to 75 DEG C, curing agent, organo-bismuth is added, solvent naphtha, disappears
Infusion, chain extender, chlorinated paraffin, 40min is stirred with 110r/min；At 115 DEG C, vacuum dehydration 0.7h, vacuum pressure is -0
.055MPa；60 DEG C are cooled to, produces B component；
(3) water-repellent paint is prepared：
Component A and B components are mixed in proportion can form self-closing's polyurethane water-proof paint.
The performance of water-repellent paint made from embodiment 1-3 is detected, to embodiment 1-4 water-repellent paint progressive
It can detect, testing result is as shown in table 1：
Table 1
As known from Table 1, water-repellent paint produced by the present invention has good water resistance and dereism.Found by contrasting
Water-repellent paint elongation percentage made from embodiment 3 is maximum, has a stronger external force resistance morphotropism, and dereism is more preferable.
Claims (1)
1. a kind of self-closing's polyurethane water-proof paint, it is characterised in that be made up of two kinds of components of A, B；Wherein, the component A by
Following weight than raw material composition：Adipic acid 7-10 parts, HMDI 18-24 parts, the isocyanate group methyl caproate 18-20 of 2,6- bis-
Part, stannous octoate 0.1-0.3 parts, PPG 40-55 parts, DBTL 0.1-0.3 parts；The B component is by following weight ratio
Raw material composition：End hydroxy butadiene 10-25 parts, precipitated calcium carbonate 10-20 parts, bentonite 15-25 parts, white carbon 4-6 parts,
Curing agent 15-35 parts, organo-bismuth 0.1-0.5 parts, solvent naphtha 20-30 parts, defoamer 1-2 parts, chain extender 15-25 parts, chlorination stone
Wax 40-55 parts；The mass ratio of two kinds of components of A, B is A components：B component=2:1-3:1；The curing agent is triethyl group three
Amine；The solvent naphtha is isoparaffin solvent oil；The organo-bismuth is any in isooctyl acid bismuth, laurate bismuth and bismuth neodecanoate
It is a kind of；The preparation method of self-closing's polyurethane water-proof paint, it is characterised in that comprise the following steps：
（1）It is prepared by component A：
The adipic acid is added into reactor one, nitrogen is passed through with 0.6-0.8m3/h, is warming up to 65-75 DEG C；Into blending tank
2, the 6- diisocyanate base methyl caproate and the HMDI are added, with rotating speed 75-80 r/min, stirs 9-11min, will
Liquid in the blending tank is slowly dropped in the reactor one；The DBTL, described is added into the reactor one
Stannous octoate, 85-90 DEG C is warming up to, 70-80 r/min stirring reactions 1.5-2.5h；Nitrogen is closed, it is more to add the polyethers
First alcohol, under the conditions of 110-120 DEG C, the .06MPa of -0 .05~-0, vacuum dehydration 1-2h；55-65 DEG C is cooled to, produces A groups
Point；
（2）It is prepared by B component
The end hydroxy butadiene is added in reactor two, is warming up to 90-110 DEG C, adds the precipitated calcium carbonate, described
Bentonite, the white carbon, disperse 10-20min, rotating speed 350-450r/min；The reactor two is cooled to 70-80
DEG C, the curing agent, the organo-bismuth, the solvent naphtha, the defoamer, the chain extender, the chlorinated paraffin are added, with
100-120r/min stirs 30-50min；At 110-120 DEG C, vacuum dehydration 0.5-1h, vacuum pressure is -0 .05~-0
.06MPa；55-65 DEG C is cooled to, produces B component；
（3）Prepare water-repellent paint：
The component A and the B components are mixed in proportion can form self-closing's polyurethane water-proof paint.
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