CN108239255A - Polyurea type polyurethane coating, feedstock composition and application thereof - Google Patents
Polyurea type polyurethane coating, feedstock composition and application thereof Download PDFInfo
- Publication number
- CN108239255A CN108239255A CN201611224199.1A CN201611224199A CN108239255A CN 108239255 A CN108239255 A CN 108239255A CN 201611224199 A CN201611224199 A CN 201611224199A CN 108239255 A CN108239255 A CN 108239255A
- Authority
- CN
- China
- Prior art keywords
- polyalcohol
- type polyurethane
- negative pressure
- polyurethane coating
- polyurea type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920002396 Polyurea Polymers 0.000 title claims abstract description 47
- 239000011527 polyurethane coating Substances 0.000 title claims abstract description 24
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 65
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 55
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- 238000010792 warming Methods 0.000 claims description 40
- 238000002360 preparation method Methods 0.000 claims description 37
- 208000005156 Dehydration Diseases 0.000 claims description 22
- 230000018044 dehydration Effects 0.000 claims description 22
- 238000006297 dehydration reaction Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000004814 polyurethane Substances 0.000 claims description 18
- 239000003973 paint Substances 0.000 claims description 17
- 229920002635 polyurethane Polymers 0.000 claims description 17
- 239000002518 antifoaming agent Substances 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 13
- 229920005862 polyol Polymers 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 10
- -1 polysiloxane Polymers 0.000 claims description 10
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 10
- 238000009736 wetting Methods 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 9
- 239000012948 isocyanate Substances 0.000 claims description 9
- 150000003077 polyols Chemical class 0.000 claims description 9
- 239000004970 Chain extender Substances 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 150000002513 isocyanates Chemical class 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 5
- 150000001298 alcohols Chemical class 0.000 claims description 5
- 150000004985 diamines Chemical class 0.000 claims description 5
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000002808 molecular sieve Substances 0.000 claims description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 claims description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 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
- 239000006185 dispersion Substances 0.000 claims description 3
- 229920005906 polyester polyol Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 150000003141 primary amines Chemical class 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- PISLZQACAJMAIO-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine Chemical compound CCC1=CC(C)=C(N)C(CC)=C1N PISLZQACAJMAIO-UHFFFAOYSA-N 0.000 claims description 2
- 241000276489 Merlangius merlangus Species 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004611 light stabiliser Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 2
- 239000012974 tin catalyst Substances 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- KPTLPIAOSCGETM-UHFFFAOYSA-N benzene 1,2-diisocyanatoethane Chemical compound O=C=NCCN=C=O.c1ccccc1 KPTLPIAOSCGETM-UHFFFAOYSA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- KUDPGZONDFORKU-UHFFFAOYSA-N n-chloroaniline Chemical compound ClNC1=CC=CC=C1 KUDPGZONDFORKU-UHFFFAOYSA-N 0.000 claims 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 6
- 238000007792 addition Methods 0.000 description 11
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 10
- 239000007921 spray Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 230000008676 import Effects 0.000 description 6
- 230000007306 turnover Effects 0.000 description 6
- VNTDZUDTQCZFKN-UHFFFAOYSA-L zinc 2,2-dimethyloctanoate Chemical compound [Zn++].CCCCCCC(C)(C)C([O-])=O.CCCCCCC(C)(C)C([O-])=O VNTDZUDTQCZFKN-UHFFFAOYSA-L 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 3
- 235000013877 carbamide Nutrition 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000008439 repair process Effects 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
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 238000004500 asepsis Methods 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
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003226 polyurethane urea Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- 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
- C08G18/44—Polycarbonates
-
- 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/482—Mixtures of polyethers containing at least one polyether containing nitrogen
-
- 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
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- 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)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of polyurea type polyurethane coatings, feedstock composition and application thereof.The polyurea type polyurethane coating feedstock composition includes performed polymer and polyalcohol and is free of organic solvent, and the mass ratio of the performed polymer and the polyalcohol is 1：(0.8~2)；The coating surface drying time being prepared by the feedstock composition is shorter and has good mechanical property, environmentally friendly without organic solvent, easy to use, more suitable for as manual operation materials'use.
Description
Technical field
The present invention relates to polyurea type polyurethane coatings, feedstock composition and application thereof.
Background technology
Carbamide paint, that is, Spray Polyurea Elastomer for the quick-reaction type two-component coating close to 100% solid content, has
The thick painting of asepsis environment-protecting, low VOC, rapid curing, facade insensitive to the temperature and humidity of construction environment not sagging, mechanical property
The features such as strong and base material is adaptable is widely used in high ferro, underground engineering, coastal engineering, coliseum, large-scale recreation ground
The waterproof and anticorrosions field such as institute, roof.
And in practical engineering application, regional area usually needs repairing, these regions be local bubble, stripping or by
Artificial destruction or the holiday that leaves of detection or spray polyurea edge warp at place or detail treatment etc..These regions
Appropriate maintenance process is needed, otherwise can be destroyed phenomena such as coating causes water penetration.Large surface mending can be adopted directly when being coated with again
It is sprayed with machine, but these sectional repairs should use manual operation.The basic mechanical performance of manual operation material should gather with spraying
Urea mechanical property matches, but its 100% modulus will be less than spray polyurea, reach 4MPA, 50% modulus is then lower, makes painting
Film adapts to the node deformation when thin portion deforms upon.Manual operation material is polyurethane or polyureas, and conventional polyurethane is prevented
Water paint gel time or surface drying time are too long, although with it is more can construction time and abundant wetting time with base,
But the construction time is seriously affected, and the mechanical property of spray polyurea is much not achieved in its mechanical property.And spary coating type polyureas
It is higher to equipment requirement when in use, it is inconvenient to use.Therefore, how to improve its mechanical property and adjust surface drying time and (open
Time and the balance of gel time), and use simply, it is to repair polyurea type polyurethane water-proof paint to be badly in need of asking for solution
Topic.
Invention content
The technical problems to be solved by the invention are, in order to overcome polyurethane coating gel time or table in the prior art
The dry time is too long to cause the construction time tediously long, and the level of spray polyurea is not achieved in mechanical property, and spray polyurea is unsuitable
The problem of small area sprays, so as to provide a kind of polyurea type polyurethane coating, feedstock composition and application thereof.The polyurea type is gathered
Urethane coating surface drying time is shorter and has good mechanical property, environmentally friendly without organic solvent, easy to use, more
It is adapted as manual operation materials'use.
The present invention solves the above problems by the following technical programs.
A kind of polyurea type polyurethane coating feedstock composition, including performed polymer and polyalcohol and without organic solvent, institute
The mass ratio for stating performed polymer and the polyalcohol is 1：(0.8~2)；
The raw material for preparing of the performed polymer includes：The polymer polyatomic alcohol of 30%-80%, the isocyanates of 20%-50%
With 0%~20% plasticizer；The percentage accounts for the mass percent for preparing raw material of the performed polymer for the quality of each component,
The sum of each component percentage is 100%；
The raw material for preparing of the polyalcohol includes：0-75% polymer polyatomic alcohols, the polyetheramine of 0-70%, 20%-70%
Chain extender, 0-5% fillers, 0-1.5% wetting dispersing agents and 0.1%-1% catalyst；The percentage is the matter of each component
It is 100% that amount, which accounts for the sum of the mass percent for preparing raw material of the polyalcohol, each component percentage,；Wherein, the polymer
The sum of polyalcohol and the polyetheramine are not 0；
The polymer polyatomic alcohol is selected from polyether polyol (such as DL-2000, MN-3050 or EP-330N), polyester polyols
Alcohol (such as polycarbonate glycol, preferably PCDL-1000) and one kind in polytetrahydrofuran polyol (such as PTMG-2000) or
A variety of, the degree of functionality of the polymer polyatomic alcohol is 2~3, and number-average molecular weight is 1000~5000；
It is sub- that the isocyanates is selected from toluene di-isocyanate(TDI) (TDI), methyl diphenylene diisocyanate (MDI), benzene two
Methyl diisocyanate (XDI), 1, hexamethylene-diisocyanate (HDI) and one kind in isophorone diisocyanate (IPDI) or
It is a variety of；
Polypropylene oxide (such as in D400, D1000, D2000, T403 and T5000 one of the polyetheramine for primary amine sealing end
Kind is a variety of).
The mass ratio of the performed polymer and the polyalcohol preferably 1：(1.1~1.2).
The chain extender prepares the chain extender of polyol compound routine, neighbour's chlorobenzene specifically preferred according to the invention for this field
It is one or more in amine, diethyl toluene diamine and dimethythiotoluene diamine.
The catalyst prepares the catalyst of polyol compound routine, organotin specifically preferred according to the invention for this field
And/or organo-bismuth class catalyst, the preferred T9 and/or T12 of organic tin catalyst；The organo-bismuth class catalyst is preferred
BiCAT Z and/or BiCAT 8.
The plasticizer prepares the Conventional plasticizers of base polyurethane prepolymer for use as, chlorination stone specifically preferred according to the invention for this field
It is one or more in wax, dibutyl phthalate, diisobutyl phthalate and diisononyl phthalate.
The raw material for preparing of polyalcohol of the present invention may also include ultraviolet absorber, and the ultraviolet absorber is this field
Prepare the conventional UV absorber of polyalcohol, liquid amine specifically preferred according to the invention is obstructed light stabilizer, further preferred BASF-
It is one or more in B97, BASF-B75, BASF-765 and BASF-571；The content of the ultraviolet absorber is described polynary
The 0.1-2% of the quality for preparing raw material of alcohol.
The raw material for preparing of polyalcohol of the present invention may also include antifoaming agent, and the antifoaming agent prepares polynary for this field
The conventional antifoam of alcohol, polysiloxane-based antifoaming agent specifically preferred according to the invention, further preferred BYK-066N, BYK-065 and
It is one or more in BYK-067；0.1%- of the content of the antifoaming agent for the quality for preparing raw material of the polyalcohol
1.5%.
The wetting dispersing agent prepares the conventional wetting dispersing agent of polyalcohol, organosilicon specifically preferred according to the invention for this field
Class dispersant, it is one or more in further preferred BYK-163, BYK-161, BYK-110 and BYK-P104s.
The filler prepares the conventional fillers of polyalcohol for this field, powdered whiting specifically preferred according to the invention, lightweight carbon
It is one or more in sour calcium, talcum powder, molecular sieve, barium sulfate and titanium dioxide.
Heretofore described performed polymer, can by the performed polymer to prepare raw material pre- according to this field conventional polyurethanes
The preparation method of aggressiveness is prepared, specifically preferred according to the invention：It will be after the polymer polyol dehydration of alcohols and the isocyanates
Reaction；Preferably 105~120 DEG C of temperature during the dehydration, pressure preferably -0.095MPa during the dehydration；The dewatering time is excellent
Select 1~3h；Preferably 75~80 DEG C of the reaction temperature；The reaction time preferably 1~4h；It is of the invention further preferably described poly-
Temperature is 50~65 DEG C after closing the polynary dehydration of alcohols of object.
Heretofore described performed polymer more preferably, is made according to following preparation methods：By the polymer polyatomic alcohol,
The plasticizer is warming up to 105~120 DEG C of dehydrations, and negative pressure is dehydrated 1~3h, is cooled to 50~65 DEG C later and adds in the isocyanic acid
Ester is warming up to 75~85 DEG C after being dispersed with stirring, react 1~4h, be cooled to 50~60 DEG C, filtering and discharging, you can.
Polyalcohol of the present invention can prepare system of the raw material according to this field conventional polyol by the polyalcohol
Preparation Method is prepared, specifically preferred according to the invention：The polymer polyatomic alcohol, the polyetheramine and the chain extender are born
After press-dehydrating, the negative pressure deaeration under the catalyst action, you can.
It can also add in filler and/or wetting dispersing agent before negative pressure dehydration, the preferred pressure of the negative pressure dehydration-
0.095MPa, 105~120 DEG C of temperature and 1~3h of time；
The antifoaming agent and/or ultraviolet absorber can be also added in before the negative pressure deaeration；The excellent pressure of negative pressure deaeration-
0.095MPa, 50~65 DEG C of temperature and 1~2h of time.
Heretofore described polyalcohol more preferably, is made according to following preparation methods：
The polymer polyatomic alcohol, the polyetheramine are warming up to 100~105 DEG C, add in chain extender dispersion 0.5~
1h adds in the wetting dispersing agent and the filler later, is warming up to 105~120 DEG C, negative pressure is dehydrated 1~3h, is cooled to later
It 50~65 DEG C, adds in the antifoaming agent, the ultra-violet absorber, the catalyst and is dispersed with stirring 0.5~1h, negative pressure deaeration 1
~2h, filtering and discharging, you can.
The present invention also provides a kind of polyurea type polyurethane coatings, prepare raw material and include the polyurea type polyurethane coating
Performed polymer described in feedstock composition and the polyalcohol, and without organic solvent；The matter of the performed polymer and the polyalcohol
Amount is than being 1：(0.8~2), preferably 1：(1.1~1.2).
The polyurea type polyurethane coating can be prepared raw material and be conventionally prepared by described, preferably, by institute
It states performed polymer and the polyalcohol is stirred；More preferably, in the case where not being mixed into bubble, by the performed polymer and described more
First alcohol is stirred.
The present invention also provides a kind of polyurea type polyurethane coatings to prepare repairing polyurea type polyurethane water-proof paint film
In application.
In the present invention, part material product information does description below：
BYK is Bi Ke chemical companies；
BiCAT is the leading chemical company in the U.S.；
BASF is BASF AG；
In addition, DL-2000, MN-3050, EP-330N, PCDL-1000, PTMG-2000, D400 involved in the present invention,
D1000, D2000, T403 and T5000 are common name in the industry.
Without prejudice to the field on the basis of common sense, above-mentioned each optimum condition can be combined arbitrarily each preferably to get the present invention
Example.
The reagents and materials used in the present invention are commercially available.
The positive effect of the present invention is：Polyurea type polyurethane water-proof paint surface drying time prepared by the present invention is shorter
And with excellent mechanical property, it is particularly suitable for manual operation；The coating raw material is without organic solvent simultaneously, to environment friend
Good, insensitive to the temperature and humidity of construction environment, applicability is wide, even if still having good protective in harsh environment
Energy.
Specific embodiment
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.Test method without specific conditions in the following example, according to conventional methods and conditions or according to quotient
Product specification selects.
In embodiment,
DL-2000, MN-3050, EP-330N are using the big product in blue star east；
PCDL-1000 is using Japanese Asahi Chemical Industry product；
PTMG-2000 uses Mitsubishi product；
T5000 uses the graceful product of Hensel.
Embodiment 1：
(1) preparation of performed polymer
By percentage to the quality, first 42% DL-2000 is added in, 16.5% chlorinated paraffin is warming up to 105~120 DEG C and takes off
Water, negative pressure -0.095MPa dehydration 1.5h, is cooled to the MDI-50 of 60 DEG C of additions 41.5%, 78 is warming up to after being dispersed with stirring later
DEG C, 3h is fully reacted, is cooled to 50~60 DEG C, filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the 330N for first adding in 65% is warming up to 100~105 DEG C, adds in 30% o-chloraniline point
0.5~1h is dissipated, the titanium dioxide of 0.1% BYK-P104S and 4% is added in later, is warming up to 105~120 DEG C, negative pressure-
0.095MPa is dehydrated 2h, is cooled to 65 DEG C later, adds in 0.1% BYK-066N, 0.5% BASF-B97,0.3% T-12
It is dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1：After 1 mixing in the case where not being mixed into bubble
3~5min is sufficiently stirred, then stands 2min, is imported in mold, the film of preparation conserves 96h at the standard conditions, turns over later
Face continues to conserve 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
Embodiment 2：
(1) preparation of performed polymer
By percentage to the quality, the PTMG-2000 for first adding in 60% is warming up to 105~120 DEG C of dehydrations, and negative pressure-
0.095MPa is dehydrated 1.5h, is cooled to the IPDI of 50 DEG C of additions 40% later, 75 DEG C are warming up to after being dispersed with stirring, and fully reacts
3h, is cooled to 50~60 DEG C, and filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the 330N for first adding in 72% is warming up to 100~105 DEG C, adds in 22% diethyltoluene
Diamines disperses 0.5~1h, adds in the barium sulfate of 0.15% BYK-110 and 5% later, is warming up to 105~120 DEG C, and negative pressure-
0.095MPa is dehydrated 2h, is cooled to 65 DEG C later, adds in 0.15% BYK-065,0.5% BASF-B75,0.2%
BICAT 8 is dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, and filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:In the situation for not being mixed into bubble after 0.9 mixing
Under be sufficiently stirred 3~5min, then stand 2min, import in mold, the film of preparation conserves 96h at the standard conditions, later
Turn-over continuation conserves 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
Embodiment 3：
(1) preparation of performed polymer
By percentage to the quality, first the DL-2000 of addition 40%, the phthalic acid two of 10% MN3050 and 20% are different
Butyl ester is warming up to 105~120 DEG C of dehydrations, and negative pressure -0.095MPa is dehydrated 1h, is cooled to the TDI-80 of 60 DEG C of additions 30% later,
78 DEG C are warming up to after being dispersed with stirring, fully reacts 3h, is cooled to 50~60 DEG C, filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the T5000 for first adding in 61% 330N and 8% is warming up to 100~105 DEG C, adds in 25%
Dimethythiotoluene diamine disperse 0.5~1h, later add in 0.1% BYK-161 and 5% 3A molecular sieves, be warming up to 105
~120 DEG C, negative pressure -0.095MPa dehydration 2h are cooled to 65 DEG C, add in 0.1% BYK-067,0.6% BASF- later
765th, 0.2% BICAT Z are dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, and filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:In the situation for not being mixed into bubble after 1.1 mixing
Under be sufficiently stirred 3~5min, then stand 2min, import in mold, the film of preparation conserves 96h at the standard conditions, later
Turn-over continuation conserves 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
Embodiment 4：
(1) preparation of performed polymer
By percentage to the quality, 52% PTMG-2000, the phthalic acid of 6% PCDL-1000 and 11% are first added in
Dinonyl is warming up to 105~120 DEG C of dehydrations, and negative pressure -0.095MPa is dehydrated 2h, is cooled to the HDI of 55 DEG C of additions 31% later,
78 DEG C are warming up to after being dispersed with stirring, fully reacts 2.5h, is cooled to 50~60 DEG C, filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the T5000 for first adding in 44% D2000 and 11.5% is warming up to 100~105 DEG C, adds in
38.5% o-chloraniline disperses 0.5~1h, adds in 0.1% BYK-163,2% talcum powder and 3% 3A molecules later
Sieve, is warming up to 105~120 DEG C, and negative pressure -0.095MPa dehydration 2h are cooled to 65 DEG C later, add in 0.1% BYK-067,
0.7% BASF-765,0.1% T9 are dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, and filtering and discharging is to get to B
Component.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:In the situation for not being mixed into bubble after 1.2 mixing
Under be sufficiently stirred 3~5min, then stand 2min, import in mold, the film of preparation conserves 96h at the standard conditions, later
Turn-over continuation conserves 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
Embodiment 5：
(1) preparation of performed polymer
By percentage to the quality, first add in 50% PTMG-2000,10% DL-2000 be warming up to 105~120 DEG C it is de-
Water, negative pressure -0.095MPa dehydration 1.5h, is cooled to the IPDI of 50 DEG C of additions 40%, 75 DEG C is warming up to after being dispersed with stirring, is filled later
Point reaction 3h, is cooled to 50~60 DEG C, and filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the 330N for first adding in 72% is warming up to 100~105 DEG C, adds in 22% diethyltoluene
Diamines disperses 0.5~1h, adds in the barium sulfate of 0.15% BYK-110 and 5% later, is warming up to 105~120 DEG C, and negative pressure-
0.095MPa is dehydrated 2h, is cooled to 65 DEG C later, adds in 0.15% BYK-065,0.5% BASF-B75,0.2%
BICAT 8 is dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, and filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:In the situation for not being mixed into bubble after 0.8 mixing
Under be sufficiently stirred 3~5min, then stand 2min, import in mold, the film of preparation conserves 96h at the standard conditions, later
Turn-over continuation conserves 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
Embodiment 6：
(1) preparation of performed polymer
By percentage to the quality, 52% PTMG-2000, the phthalic acid of 6% PCDL-1000 and 11% are first added in
Dinonyl is warming up to 105~120 DEG C of dehydrations, and negative pressure -0.095MPa is dehydrated 2h, is cooled to the HDI of 55 DEG C of additions 31% later,
78 DEG C are warming up to after being dispersed with stirring, fully reacts 2.5h, is cooled to 50~60 DEG C, filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the 330N for first adding in 65% is warming up to 100~105 DEG C, adds in 30% o-chloraniline point
0.5~1h is dissipated, the titanium dioxide of 0.1% BYK-P104S and 4% is added in later, is warming up to 105~120 DEG C, negative pressure-
0.095MPa is dehydrated 2h, is cooled to 65 DEG C later, adds in 0.1% BYK-066N, 0.5% BASF-B97,0.3% T-12
It is dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:After 2 mixing in the case where not being mixed into bubble
3~5min is sufficiently stirred, then stands 2min, is imported in mold, the film of preparation conserves 96h at the standard conditions, turns over later
Face continues to conserve 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
Comparative example 1：
(1) preparation of performed polymer
By percentage to the quality, first the DL-2000 of addition 40%, the phthalic acid two of 10% MN3050 and 20% are different
Butyl ester is warming up to 105~120 DEG C of dehydrations, and negative pressure -0.095MPa is dehydrated 1h, is cooled to the TDI-80 of 60 DEG C of additions 30% later,
78 DEG C are warming up to after being dispersed with stirring, fully reacts 3h, is cooled to 50~60 DEG C, filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the T5000 for first adding in 61% 330N and 8% is warming up to 100~105 DEG C, adds in 25%
Dimethythiotoluene diamine disperse 0.5~1h, later add in 0.1% BYK-161 and 5% 3A molecular sieves, be warming up to 105
~120 DEG C, negative pressure -0.095MPa dehydration 2h are cooled to 65 DEG C, add in 0.1% BYK-067,0.6% BASF- later
765th, 0.2% BICAT Z are dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, and filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:In the situation for not being mixed into bubble after 0.7 mixing
Under be sufficiently stirred 3~5min, then stand 2min, import in mold, the film of preparation conserves 96h at the standard conditions, later
Turn-over continuation conserves 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
The film air bubble problem that the polyurea type polyurethane water-proof paint is prepared is serious, is not suitable for applying.
Comparative example 2：
(1) preparation of performed polymer
By percentage to the quality, first the DL-2000 of addition 40%, the phthalic acid two of 10% MN3050 and 20% are different
Butyl ester is warming up to 105~120 DEG C of dehydrations, and negative pressure -0.095MPa is dehydrated 1h, is cooled to the TDI-80 of 60 DEG C of additions 30% later,
78 DEG C are warming up to after being dispersed with stirring, fully reacts 3h, is cooled to 50~60 DEG C, filtering and discharging is to get to performed polymer.
(2) preparation of polyalcohol
By percentage to the quality, the T5000 for first adding in 61% 330N and 8% is warming up to 100~105 DEG C, adds in 25%
Dimethythiotoluene diamine disperse 0.5~1h, later add in 0.1% BYK-161 and 5% 3A molecular sieves, be warming up to 105
~120 DEG C, negative pressure -0.095MPa dehydration 2h are cooled to 65 DEG C, add in 0.1% BYK-067,0.6% BASF- later
765th, 0.2% BICAT Z are dispersed with stirring 0.5~1h, negative pressure -0.095MPa deaeration 1h, and filtering and discharging is to get to polyalcohol.
(3) preparation of polyurea type polyurethane water-proof paint film is repaired
By the polyalcohol in the performed polymer in (1) and (2) according to mass ratio 1:In the situation for not being mixed into bubble after 2.1 mixing
Under be sufficiently stirred 3~5min, then stand 2min, import in mold, the film of preparation conserves 96h at the standard conditions, later
Turn-over continuation conserves 72h at the standard conditions, finally obtains the film of 1.5 ± 0.2mm of individual layer, and test performance.
The film that the polyurea type polyurethane water-proof paint is prepared cannot be fully cured, and be not suitable for applying.
Polyurethane water-proof paint is II type indexs of GB/T 19250-2013 in upper table, and spray polyurea is GB/T 23446-
2009I type indexs
The mechanical property of embodiment is far superior to two type polyurethane coating of national standard as can be seen from the above table, and has reached national standard
The index of one type spray polyurea, and its surface drying time is shorter, convenient for practical construction usage.
Claims (10)
1. a kind of polyurea type polyurethane coating feedstock composition, which is characterized in that including performed polymer and polyalcohol and without organic
The mass ratio of solvent, the performed polymer and the polyalcohol is 1：(0.8~2)；It is preferred that 1：(1.1~1.2)；
The raw material for preparing of the performed polymer includes：The polymer polyatomic alcohol of 30%-80%, the isocyanates of 20%-50% and 0-
20% plasticizer；The percentage accounts for the mass percent for preparing raw material of the performed polymer, each component for the quality of each component
The sum of percentage is 100%；
The raw material for preparing of the polyalcohol includes：0-75% polymer polyatomic alcohols, the polyetheramine of 0-70%, 20%-70% chain extensions
Agent, 0-5% fillers, 0-1.5% wetting dispersing agents and 0.1%-1% catalyst；The percentage is accounted for for the quality of each component
The sum of the mass percent for preparing raw material of the polyalcohol, each component percentage are 100%；Wherein, the polymer polyol
The sum of alcohol and the polyetheramine are not 0；
The one kind or more of the polymer polyatomic alcohol in polyether polyol, polyester polyol and polytetrahydrofuran polyol
Kind, the degree of functionality of the polymer polyatomic alcohol is 2~3, and number-average molecular weight is 1000~5000；
The isocyanates be selected from toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, benzene dimethylene diisocyanate,
1, it is one or more in hexamethylene-diisocyanate and isophorone diisocyanate；
The polyetheramine is the polypropylene oxide of primary amine sealing end.
2. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that the polyether polyol choosing
From one or more in DL-2000, MN-3050 and EP-330N；The polyester polyol is polycarbonate glycol；It is described poly-
Tetrahydrofuran polyalcohol is PTMG-2000.
3. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that the primary amine sealing end gathers
Propylene oxide is one or more in D400, D1000, D2000, T403 and T5000.
4. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that the chain extender is selected from neighbour
It is one or more in chloroaniline, diethyl toluene diamine and dimethythiotoluene diamine.
5. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that the catalyst is organic
Tin and/or organo-bismuth class catalyst；The preferred T9 and/or T12 of organic tin catalyst；The organo-bismuth class catalyst is preferred
BiCAT Z and/or BiCAT 8.
6. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that the plasticizer is selected from chlorine
It is one or more in fossil waxes, dibutyl phthalate, diisobutyl phthalate and diisononyl phthalate；
The filler is one or more in powdered whiting, precipitated calcium carbonate, talcum powder, molecular sieve, barium sulfate and titanium dioxide；
The wetting dispersing agent is organic silicon dispersant, preferably one kind in BYK-163, BYK-161, BYK-110 and BYK-P104s
It is or a variety of.
7. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that further include ultraviolet absorber
And/or antifoaming agent；
The ultraviolet absorber is obstructed light stabilizer, preferably BASF-B97, BASF-B75, BASF-765 and BASF- for liquid amine
It is one or more in 571；0.1-2% of the content of the ultraviolet absorber for the quality for preparing raw material of the polyalcohol；
The antifoaming agent is polysiloxane-based antifoaming agent, preferably one or more in BYK-066N, BYK-065 and BYK-067；
0.1%-1.5% of the content of the antifoaming agent for the quality for preparing raw material of the polyalcohol.
8. polyurea type polyurethane coating feedstock composition as described in claim 1, which is characterized in that the performed polymer is by institute
It is obtained by the reaction after stating polymer polyol dehydration of alcohols with the isocyanates；Preferably, by the polymer polyatomic alcohol, the plasticising
Agent is warming up to 105~120 DEG C of dehydrations, and negative pressure is dehydrated 1~3h, is cooled to 50~65 DEG C later and adds in the isocyanates, stirring
75~85 DEG C are warming up to after dispersion, 1~4h is reacted, is cooled to 50~60 DEG C, filtering and discharging, you can；
The polyalcohol is after the polymer polyatomic alcohol, the polyetheramine and the chain extender are carried out negative pressure dehydration, in institute
It is i.e. available to state negative pressure deaeration under catalyst action；Preferably, it can also add in filler and/or wetting and dispersing before the negative pressure dehydration
Agent, the negative pressure are dehydrated preferred pressure -0.095MPa, 105~120 DEG C of temperature and 1~3h of time；May be used also before the negative pressure deaeration
Add in the antifoaming agent and/or ultraviolet absorber；The negative pressure deaeration pressure -0.095MPa, 50~65 DEG C of temperature and time 1~
2h；More preferably, the polymer polyatomic alcohol, the polyetheramine are warming up to 100~105 DEG C, add in the chain extender dispersion 0.5
~1h adds in the wetting dispersing agent and the filler later, is warming up to 105~120 DEG C, negative pressure is dehydrated 1~3h, cools down later
To 50~65 DEG C, add in the antifoaming agent, the ultra-violet absorber, the catalyst and be dispersed with stirring 0.5~1h, negative pressure deaeration
1~2h, filtering and discharging, you can.
9. a kind of polyurea type polyurethane coating prepares raw material and includes performed polymer and polyalcohol, and without organic solvent；It is described pre-
The mass ratio of aggressiveness and the polyalcohol is 1：(0.8~2)；It is preferred that 1：(1.1~1.2)；
The preparation method of the polyurea type polyurethane coating is as follows, and the performed polymer and the polyalcohol are stirred；Preferably
In the case where not being mixed into bubble, the performed polymer and the polyalcohol are stirred for ground；The performed polymer and described polynary
The definition of alcohol is the same as described in claim 1.
10. polyurea type polyurethane coating as claimed in claim 9 is in repairing polyurea type polyurethane water-proof paint film is prepared
Application.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114085605A (en) * | 2021-12-21 | 2022-02-25 | 上海东大化学有限公司 | High-storage-stability anti-settling type single-component polyurethane waterproof coating and preparation method thereof |
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