CN103555182B - A kind of Mono-component high-iron polyurethane waterproof paint and production technology thereof - Google Patents
A kind of Mono-component high-iron polyurethane waterproof paint and production technology thereof Download PDFInfo
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- CN103555182B CN103555182B CN201310457145.XA CN201310457145A CN103555182B CN 103555182 B CN103555182 B CN 103555182B CN 201310457145 A CN201310457145 A CN 201310457145A CN 103555182 B CN103555182 B CN 103555182B
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 52
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 44
- 239000003973 paint Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000005516 engineering process Methods 0.000 title claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 23
- 239000004970 Chain extender Substances 0.000 claims abstract description 22
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920000570 polyether Polymers 0.000 claims description 54
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 51
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 25
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 17
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 17
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 15
- 239000005995 Aluminium silicate Substances 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 13
- 241000276489 Merlangius merlangus Species 0.000 claims description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 13
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 38
- 239000012948 isocyanate Substances 0.000 abstract description 14
- 239000011527 polyurethane coating Substances 0.000 abstract description 3
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical class OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 239000012974 tin catalyst Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a kind of Mono-component high-iron polyurethane waterproof paint, as follows: PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 0.8 part and catalyst 0.4 part.The present invention can effectively solve high ferro Two-component Waterproof Polyurethane Coating in-convenience in use, surface there is the technical problems such as dark bubble and pin hole, utility time be short.
Description
Technical field
The present invention relates to waterproof technique field, particularly relate to a kind of water-repellent paint, specifically refer to a kind of Mono-component high-iron polyurethane waterproof paint and production technology thereof.
Background technology
Existing high ferro polyurethane waterproof coating material, because hot strength needs, it is generally two component polyurethane, is divided into first component and second component, in use needs to mix first, second component according to a certain percentage, could use after stirring.General first component is base polyurethane prepolymer for use as, and second component is curing system.Because bi-component high ferro polyurethane waterproof coating material exists burden process before construction, so being susceptible to measure mistake, waterproof coating physical property and waterproof effect is caused to reduce；Coating easily bubbles in whipping process, makes easily to occur in the middle of waterproof coating dark bubble, pin hole, affects outward appearance and waterproof effect；First, second component is after stirring, it is necessary to make to be finished material within its hardening time, and otherwise material can make viscosity rise because of reaction, cannot scratch or roller coat after retrogradation.
Summary of the invention
The technical problem to be solved in the present invention is for the weak point existing for prior art, a kind of Mono-component high-iron polyurethane waterproof paint and production technology thereof are provided, can effectively solve high ferro Two-component Waterproof Polyurethane Coating in-convenience in use, surface there is the technical problems such as dark bubble and pin hole, utility time be short.
The technical solution of the present invention is, following a kind of Mono-component high-iron polyurethane waterproof paint is provided, as follows: PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 0.8 part and catalyst 0.4 part.
As preferably, the PPG of described 35 parts is made up of the polyethers MN 3050 of the polyethers DL 1000D of 21 parts, the polyethers DL 2000D of 9 parts and 5 parts.
As preferably, in described polyethers DL 1000D, hydroxyl value is 105 ~ 110；In described polyethers DL 2000D, hydroxyl value is 54.5 ~ 57.5；In described polyethers MN 3050, hydroxyl value is 54.5 ~ 57.5.
As preferably, described color stuffing includes by weight for the iron oxide red of 2:16:10:7, powdered whiting, kaolin and precipitated calcium carbonate.
As preferably, described catalyst includes that organotin catalysts and tertiary amine catalyst, described organotin catalysts are dibutyltin dilaurate；Described tertiary amine catalyst is triethylamine, and dibutyltin dilaurate and triethylamine are by weight for 1:3.
As preferably, described curing agent is plain edition latent curing agent.
As preferably, described chain extender is Isosorbide-5-Nitrae butanediol.
A kind of production technology of Mono-component high-iron polyurethane waterproof paint, its production craft step is as follows:
Step 1: add the polyethers DL 1000D of 21 parts described in formula, the polyethers DL 2000D of 9 parts, the hydroxy resin of polyethers MN 3050,15 parts of 5 parts and the dispersant of 0.1 part in polyurethane reaction still, stir, then it is separately added into, by weight the proportion relation for 2:16:10:7, the color stuffing 35 parts being made up of iron oxide red, powdered whiting, kaolin, precipitated calcium carbonate, it is warming up to 80 DEG C, start afterwards to vacuumize, continuous dehydration 5 hours at temperature 115 ± 5 DEG C, vacuum need to reach-0.09MPa, and returning charge in every 40 ~ 50 minutes is once.
Step 2: after dehydration, cools to 80 DEG C, adds toluene di-isocyanate(TDI) (TDI 80) 10 parts, reacts 2 hours.
Step 3: then control temperature is at 80 DEG C, adds organotin catalysts dibutyltin dilaurate 0.1 part, reacts 0.5 hour.
Step 4: afterwards add tertiary amine catalyst triethylamine 0.3 part, stir 5 minutes to uniformly, add 3.7 parts of curing agent, react 25 minutes.
Step 5: be eventually adding chain extender 0.8 part, reacts 30 minutes.
Step 6: stop stirring, be cooled to 60 DEG C, vacuum defoamation 15 minutes under-0.06MPa, then pack with 30 mesh double-deck iron net filtration blowings.
Described dibutyltin dilaurate must add from charge door when adding, and described curing agent and catalyst of triethylamine can not be added simultaneously.
Prepared Mono-component high-iron polyurethane waterproof paint is divided 2 ~ 3 times and scratch on the glass plate scribbling releasing agent, prepared thickness is the coating of 2.0 ± 0.1mm, film forming under standard test conditions, described standard test condition is temperature 23 ± 2 DEG C, humidity 60 ± 15%, maintenance 96 hours, the then demoulding, film turns over maintenance 72 hours under standard test conditions again, prepares film waterproof material.
Described Mono-component high-iron polyurethane waterproof paint technical indicator is: hot strength is 6.9Mpa, the fracture rate of stretching out is 450%.
The Mono-component high-iron polyurethane waterproof paint prepared by technical solutions according to the invention is easy to use, surface is without spraying defects such as dark bubble and pin holes, utility time is long, antiageing effect is good, in addition, waterproof coating intensity by the Mono-component high-iron polyurethane waterproof paint made by factory formula of the present invention is higher, has good extensibility；By using plain edition latent curing agent, thus avoid CO2Production, thus the defect avoiding foaming to produce, simultaneously can shorten the curing of coating time, improve film performance.
Accompanying drawing explanation
Fig. 1 is the polyethers ratio impact on film performance in performed polymer.
Fig. 2 is NCO/OH ratio impact on film physical property in performed polymer.
Fig. 3 is curing agent and the impact on film performance of the free NCO molar ratio coefficient.
Detailed description of the invention
For purposes of illustration only, a kind of Mono-component high-iron polyurethane waterproof paint and production technology thereof to invention elaborate.
nullEmbodiment 1: a kind of Mono-component high-iron polyurethane waterproof paint，Calculate by weight，Including by the polyethers DL 1000D that 21 parts of hydroxyl values are 107、Polyethers DL 2000D that 9 parts of hydroxyl values the are 55.5 and polyethers MN 3050 that 5 parts of hydroxyl values are 55.5 composition amount to 35 part PPG、Toluene di-isocyanate(TDI) (TDI 80) 10 parts、Hydroxy resin 15 parts、Dispersant 0.1 part、By iron oxide red 2 parts、Powdered whiting 16 parts、Kaolin 10 parts and precipitated calcium carbonate 7 parts are formed the color stuffing amounting to 35 parts、Plain edition latent curing agent 3.7 parts、Chain extender 1，4 butanediols 0.8 part、And it is mainly composed of the organotin catalysts 0.1 part that dibutyltin dilaurate is constituted and the tertiary amine catalyst 0.3 part being mainly composed of triethylamine composition.
Mono-component high-iron polyurethane waterproof paint production craft step of the present invention is as follows:
Step 1: add the polyethers DL 1000D that described 21 part hydroxyl value is 107 in polyurethane reaction still, 9 parts of hydroxyl values are the polyethers DL 2000D and polyethers MN 3050 that 5 parts of hydroxyl values are 55.5 of 55.5, the hydroxy resin of 15 parts, with the dispersant of 0.1 part, stir, then add by iron oxide red by weight for 2:16:10:7, powdered whiting, kaolin, the color stuffing 35 parts of precipitated calcium carbonate composition, it is heated to 80 DEG C, start afterwards to vacuumize, continuous dehydration 5 hours at temperature 115 DEG C, controlling vacuum in polyurethane reaction still is-0.09MPa, returning charge in every 45 minutes is once.
Step 2: after dehydration, cools 80 DEG C, adds toluene di-isocyanate(TDI) (TDI 80) 10 parts, reacts 2 hours.
Step 3: temperature controlled at 80 DEG C, adds organotin catalysts dibutyltin dilaurate 0.1 part, reacts 0.5 hour, it should be noted that dibutyltin dilaurate must add from charge door.
Step 4: add tertiary amine catalyst triethylamine 0.3 part, stir 5 minutes to uniformly, add 3.7 parts of curing agent, react 25 minutes, it should be noted that curing agent and catalyst of triethylamine can not be added simultaneously.
Step 5: add chain extender Isosorbide-5-Nitrae butanediol 0.8 part, react 30 minutes.
Step 6: stop stirring, cool to 60 DEG C, vacuum defoamation 15 minutes under-0.06MPa, then pack with 30 mesh double-deck iron net filtration blowings.
Embodiment 2:
The most relatively, on the premise of other condition is the most constant, only change iron oxide red, powdered whiting, kaolin, the proportionate relationship of precipitated calcium carbonate in color stuffing, polyurethane reaction still is joined by iron oxide red, powdered whiting, kaolin and the proportionate relationship that precipitated calcium carbonate weight ratio is 5:20:5:5, amount to 35 parts, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 3:
The most relatively, on the premise of other condition is the most constant, only change organotin catalysts and the proportionate relationship of tertiary amine catalyst, it is the proportionate relationship of 2:2 by machine tin catalyst dibutyltin dilaurate and tertiary amine catalyst triethylamine weight ratio, amount to 4 parts, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 4:
The most relatively, on the premise of other condition is the most constant, only change the size of hydroxyl value in PPG, the polyethers MN 3050 that polyethers DL 2000D that polyethers DL 1000D that 21 parts of hydroxyl values are 105,9 parts of hydroxyl values are 54.5 and 5 parts of hydroxyl values are 54.5 is joined polyurethane reaction still, and prepares Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 5:
The most relatively, on the premise of other condition is the most constant, only change the size of hydroxyl value in PPG, the polyethers MN 3050 that polyethers DL 2000D that polyethers DL 1000D that 21 parts of hydroxyl values are 110,9 parts of hydroxyl values are 57.5 and 5 parts of hydroxyl values are 57.5 is joined polyurethane reaction still, and prepares Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 6:
The most relatively, ensureing between polyethers DL-1000D, polyethers DL-2000D and polyethers MN-3050；Between iron oxide red, powdered whiting, kaolin, precipitated calcium carbonate；On the premise of between machine tin catalyst dibutyltin dilaurate and tertiary amine catalyst triethylamine, proportionate relationship is constant, add PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 1,4-butanediol 0.4 part, catalyst 0.4 part, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 7:
The most relatively, ensureing between polyethers DL-1000D, polyethers DL-2000D and polyethers MN-3050；Between iron oxide red, powdered whiting, kaolin, precipitated calcium carbonate；On the premise of between machine tin catalyst dibutyltin dilaurate and tertiary amine catalyst triethylamine, proportionate relationship is constant, add PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 1,4-butanediol 0.6 part, catalyst 0.4 part, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 8:
The most relatively, ensureing between polyethers DL-1000D, polyethers DL-2000D and polyethers MN-3050；Between iron oxide red, powdered whiting, kaolin, precipitated calcium carbonate；On the premise of between machine tin catalyst dibutyltin dilaurate and tertiary amine catalyst triethylamine, proportionate relationship is constant, add PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 1,4-butanediol 1.0 parts, catalyst 0.4 part, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 9:
The most relatively, ensureing between polyethers DL-1000D, polyethers DL-2000D and polyethers MN-3050；Between iron oxide red, powdered whiting, kaolin, precipitated calcium carbonate；On the premise of between machine tin catalyst dibutyltin dilaurate and tertiary amine catalyst triethylamine, proportionate relationship is constant, add PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 1,4-butanediol 1.2 parts, catalyst 0.4 part, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
Embodiment 10:
The most relatively, ensureing between polyethers DL-1000D, polyethers DL-2000D and polyethers MN-3050；Between iron oxide red, powdered whiting, kaolin, precipitated calcium carbonate；On the premise of between machine tin catalyst dibutyltin dilaurate and tertiary amine catalyst triethylamine, proportionate relationship is constant, add PPG 35 parts, toluene di-isocyanate(TDI) 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 1,4-butanediol 1.4 parts, catalyst 0.4 part, and prepare Mono-component high-iron polyurethane waterproof paint according to the preparation method described in Mono-component high-iron polyurethane waterproof paint production craft step.
In order to detect the performance of Mono-component high-iron polyurethane waterproof paint obtained in above-mentioned 10 embodiments, prepared Mono-component high-iron polyurethane waterproof paint is divided 3 times and scratch on the glass plate scribbling releasing agent, prepared thickness is the coating of 2.0mm, film forming under standard test conditions, and carry out according to contrast with professional standard " TB/T2965-2011 ", wherein said standard test condition is temperature 23 ± 2 DEG C, humidity 60 ± 15%, maintenance 96 hours, then the demoulding, film turns over maintenance 72 hours under standard test conditions again, prepares film waterproof material.
Then obtained film geomantic omen layer carrying out detection analyze, testing result is as shown in table 1:
Table 1:
In addition, embodiment 1 and embodiment 6 to embodiment 10 are analyzed and learns, constant in other condition, only change chain extender 1,4-butanediol, preparation method and preparation parameter constant in the case of, elongation at break, hot strength and viscosity in made properties of product are detected, testing result is as shown in table 2:
Table 2:
By table 2, along with gradually increasing of chain extender consumption, its elongation at break is gradually increased, hot strength is gradually lowered, viscosity is gradually increased, through considering, analyze the impact on product overall performance of elongation at break, hot strength and viscosity, draw when chain extender consumption be 0.8 part be obtained product combination property the highest, be the technical scheme of a kind of optimum.
Why selecting PPG (abbreviation polyethers) in heretofore described Mono-component high-iron polyurethane waterproof paint is to be prepared through sudden reaction in the presence of a catalyst with oxirane (EO), expoxy propane (PO), epoxy butane (BO) etc. by initiator (compound containing active hydrogen group)；In order to improve the intensity of waterproof coating, select the DL 1000D shorter based on strand, improve extension property adding part DL 2000D, MN 3050.
From figure 1 it appears that in the case of binary polyethers DL 1000D, DL 2000D ratio are certain, along with the increase of ternary polyethers/binary polyethers ratio in performed polymer, the hot strength of film first improves reduction, and elongation at break is then gradually reduced.Because binary polyethers is based on straight chain, mainly improves extension property, play crosslinked action during the solidification of ternary polyethers, improve intensity；The reason that hot strength reduces afterwards be functional group equivalent E (B) of ternary polyethers MN 3050 be 1000, (B is 500 to binary polyethers DL 1000D functional group equivalent E, reduction along with DL 1000D content, and excessive crosslinking result in stress and concentrates, so the hot strength of film reduces.
Toluene di-isocyanate(TDI) (TDI) has two kinds of isomers: 2,4-toluene di-isocyanate(TDI)s and 2,6-toluene di-isocyanate(TDI), selects TDI 80(that is 2 more common containing market, and 4-toluene diisocyanate content is 80%).
From figure 2 it can be seen that along with the raising of NCO content, the hot strength of film first increases and reduces afterwards, and elongation at break constantly declines.Reason is as the increase of NCO/OH ratio, and the crosslink density of system increases, and rigid structure increases, and therefore hot strength is continuously increased, and elongation at break constantly declines.But NCO starts excess afterwards, excessive crosslinking have impact on again the mobility of strand, causes stress to be concentrated so that hot strength and elongation at break reduce simultaneously.When in performed polymer, NCO/OH ratio is about 2.4, the hot strength of film is 6.8MPa, and elongation at break is 490%, meets the performance requirement of product.
Curing agent is the plain edition latent curing agent that present one pack system commonly uses, its cardinal principle is that it is by producing active group with moisture preferential reaction, then active group and NCO rapid crosslinking curing film forming, thus avoid isocyanate groups directly to react generation CO with water2Make polyurethane coating foam, the curing of coating time can be shortened, improve film performance.
From figure 3, it can be seen that along with the increase of curing agent Yu free NCO molar ratio coefficient, hot strength first increases and reduces afterwards, and elongation at break improves constantly.Reason is as the increase of curing agent, and film is after contacting with moisture, and strand increases, and crosslink density improves, and in film, pin hole, bubble reduce, so hot strength and elongation at break improve simultaneously.But the most too much curing agent reacts with isocyanate groups so that strand constantly increases, reducing NCO crosslinked action in system, so causing hot strength to start to reduce, and elongation at break improves constantly.When curing agent and free NCO molar ratio coefficient ratio are about 0.8, film coated surface is smooth, and hot strength is 6.5MPa, and elongation at break is 560%, and combination property is optimal.
Because based on the DL 1000D that molecular weight is shorter in performed polymer, the content of NCO is higher simultaneously, so reaction system needing increase certain chain extender, increasing the extension property of film, selecting Isosorbide-5-Nitrae butanediol.But along with the increase of chain extender, the viscosity of material also can be gradually increased.If addition solvent dilution, then the solid content of material reduces a lot, so simultaneously need to controlling the adding proportion of chain extender well.
As can be seen from Table 1, when chain extender adds 0.8 part by weight, film hot strength is 6.9MPa, and elongation at break is 496%, and viscosity is moderate, meets the performance requirement of product.
The present invention uses PPG (DL 1000D, DL 2000D, MN 3050), toluene di-isocyanate(TDI) (TDI), curing agent, chain extender etc. to be prepared for a kind of high intensity mono-composition poyurethane water-proof paint, and its performance meets the high ferro polyurethane waterproof coating material performance indications requirement being directly used as waterproof layer in TB/T 2,965 2011 " railway concrete bridge floor waterproof layer technical conditions ".
It should be noted that patent of the present invention is in addition to having Special Statement, described all calculated according to weight portion by the proportion relation of composition.
In the above-described embodiments, the preferred forms of the present invention is described, it is obvious that under the inventive concept of the present invention, still can make a lot of change.Here, it should be noted that any change made under the inventive concept of the present invention falls within protection scope of the present invention.
Claims (4)
1. a Mono-component high-iron polyurethane waterproof paint, it is characterized in that: by weight, be made up of PPG 35 parts, TDI 80 10 parts, hydroxy resin 15 parts, dispersant 0.1 part, color stuffing 35 parts, 3.7 parts of curing agent, chain extender 0.8 part and catalyst 0.4 part；
The PPG of described 35 parts is made up of the polyethers MN-3050 of the polyethers DL-1000D of 21 parts, the polyethers DL-2000D of 9 parts and 5 parts；
In described polyethers DL-1000D, hydroxyl value is 105 ~ 110；
In described polyethers DL-2000D, hydroxyl value is 54.5 ~ 57.5；
In described polyethers MN-3050, hydroxyl value is 54.5 ~ 57.5；
Described color stuffing includes by weight for the iron oxide red of 2:16:10:7, powdered whiting, kaolin and precipitated calcium carbonate；
Described catalyst includes that organotin catalysts and tertiary amine catalyst, described organotin catalysts are dibutyltin dilaurate；Described tertiary amine catalyst is triethylamine, and dibutyltin dilaurate and triethylamine are by weight for 1:3；
The production technology of Mono-component high-iron polyurethane waterproof paint, step is as follows:
Step 1: add the polyethers DL 1000D of 21 parts described in formula, the polyethers DL 2000D of 9 parts, the hydroxy resin of polyethers MN 3050,15 parts of 5 parts and the dispersant of 0.1 part in polyurethane reaction still, stir, then according to the proportion relation that weight ratio is 2:16:10:7 is separately added into the 35 parts of color stuffings being made up of iron oxide red, powdered whiting, kaolin and precipitated calcium carbonate, it is heated to 80 DEG C, start afterwards to vacuumize, continuous dehydration 5 hours at temperature 115 ± 5 DEG C, vacuum need to reach-0.09MPa, and returning charge in every 40 ~ 50 minutes is once；
Step 2: after dehydration, cools to 80 DEG C, adds TDI 80 10 parts, reacts 2 hours；
Step 3: then control temperature is at 80 DEG C, adds organotin catalysts dibutyltin dilaurate 0.1 part, reacts 0.5 hour；
Step 4: add tertiary amine catalyst triethylamine 0.3 part afterwards, be stirred until homogeneous, add 3.7 parts of curing agent, react 25 minutes；
Step 5: be eventually adding chain extender 0.8 part, reacts 30 minutes；
Step 6: stop stirring, be cooled to 60 DEG C, vacuum defoamation 15 minutes under-0.06MPa, then pack with 30 mesh double-deck iron net filtration blowings；
Described Mono-component high-iron polyurethane waterproof paint technical indicator is: hot strength is 6.9Mpa, the fracture rate of stretching out is 496%.
Mono-component high-iron polyurethane waterproof paint the most according to claim 1, is characterized in that: described curing agent is plain edition latent curing agent.
Mono-component high-iron polyurethane waterproof paint the most according to claim 1, is characterized in that: described chain extender is BDO.
Mono-component high-iron polyurethane waterproof paint the most according to claim 1, is characterized in that: described dibutyltin dilaurate must add from charge door when adding, and described curing agent and catalyst of triethylamine can not be added simultaneously.
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| CN104087147A (en) * | 2014-06-25 | 2014-10-08 | 国家电网公司 | Monocomponent polyurethane waterproof paint and preparation method thereof |
| CN104293157A (en) * | 2014-09-16 | 2015-01-21 | 潍坊市宏源防水材料有限公司 | Solvent-free single-component polyurethane waterproof coating and production process thereof |
| CN104263219B (en) * | 2014-09-16 | 2016-08-24 | 潍坊市宏源防水材料有限公司 | A kind of new polyturethane waterproofing paint process units and technique thereof |
| CN106085192B (en) * | 2014-09-17 | 2018-08-03 | 天津长园电子材料有限公司 | The coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface |
| CN104530945B (en) * | 2014-11-19 | 2017-02-08 | 中国科学院力学研究所 | Coating combination for bullet train locomotives |
| CN106118430A (en) * | 2016-07-29 | 2016-11-16 | 上海基典防水科技有限公司 | High ferro polyurethane water-proof paint and preparation method thereof |
| CN107043592A (en) * | 2017-02-06 | 2017-08-15 | 山东诺威新材料有限公司 | High-adhesion polyurethane water-proof paint and preparation method thereof |
| CN107088392A (en) * | 2017-05-23 | 2017-08-25 | 辽宁九鼎宏泰防水科技有限公司 | The method and apparatus that a kind of microwave reaction prepares polyurethane water-proof paint |
| CN107858089A (en) * | 2017-12-07 | 2018-03-30 | 四川蜀羊防水材料有限公司 | A kind of mono-composition poyurethane water-proof paint and preparation method thereof |
| CN109439176B (en) * | 2018-09-06 | 2020-10-23 | 宏源防水科技集团有限公司 | High-strength single-component polyurethane waterproof coating and preparation process thereof |
| CN113119537A (en) * | 2021-04-25 | 2021-07-16 | 艾利特控股集团有限公司 | Composite fabric and preparation method thereof |
| CN114437622A (en) * | 2022-01-22 | 2022-05-06 | 上海正欧实业有限公司 | Single-component solvent-free polyurethane coating and preparation method thereof |
| CN114316777A (en) * | 2022-01-28 | 2022-04-12 | 四川迈铁龙科技有限公司 | Spraying type polyurethane waterproof coating and preparation method and construction method thereof |
| CN114736596B (en) * | 2022-03-22 | 2023-08-11 | 北京东方雨虹防水技术股份有限公司 | Quick-drying type single-component polyurethane waterproof coating and preparation method thereof |
| CN116496691A (en) * | 2022-12-09 | 2023-07-28 | 江苏苏博特新材料股份有限公司 | Environment-friendly solvent-free high-strength single-component polyurethane waterproof coating and preparation method thereof |
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Address after: 262700 The Government of Taitou Town, Shouguang City, Weifang City, Shandong Province, 2000m West Patentee after: HONGYUAN WATERPROOF TECHNOLOGY GROUP Co.,Ltd. Address before: 262700 The Government of Taitou Town, Shouguang City, Weifang City, Shandong Province, 2000m West Patentee before: WEIFANG HONGYUAN WATERPROOF MATERIAL Co.,Ltd. |
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Denomination of invention: One-component high-speed iron polyurethane waterproof coating and production process thereof Effective date of registration: 20220913 Granted publication date: 20160907 Pledgee: Shandong Shouguang Rural Commercial Bank Co.,Ltd. Pledgor: HONGYUAN WATERPROOF TECHNOLOGY GROUP Co.,Ltd. Registration number: Y2022980015045 |
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