CN105733432A - High-modulus polyurethane waterproofing paint and preparation method thereof - Google Patents
High-modulus polyurethane waterproofing paint and preparation method thereof Download PDFInfo
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- CN105733432A CN105733432A CN201610242746.2A CN201610242746A CN105733432A CN 105733432 A CN105733432 A CN 105733432A CN 201610242746 A CN201610242746 A CN 201610242746A CN 105733432 A CN105733432 A CN 105733432A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3802—Low-molecular-weight compounds having heteroatoms other than oxygen having halogens
- C08G18/3814—Polyamines
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- 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
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- 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
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- 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
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Abstract
The invention discloses a high-modulus polyurethane waterproofing paint which is composed of a component A and a component B.The component is prepared from, by weight, 0-33 parts of toluene diisocynate, 35-82 parts of diphenylmethane diisocyanate, 15-30 parts of dioctyl phthalate and 115-137 parts of polyether polyol.The component B is prepared from, by weight, 65-19 parts of polyether triols, 29-35 parts of 3,3'-dichloro-4,4'-diaminodiphenyl-methane, 10-35 parts of chlorinated paraffin, 55-100 parts of padding, 1-2 parts of a catalyst, 1-2 parts of a chemical root resisting agent B5 and 6-15 parts of an anti-foaming agent B-0304.The invention further provides a preparation method of the high-modulus polyurethane waterproofing paint.A test of a waterproof roll root-resisting puncture performance test method shows that the result is passed.The technical problem that the waterproof and root-resisting effect of waterproof rolls is poor in roof greening planting project application is solved.
Description
Technical field
The invention belongs to chemical field, relate to a kind of coating, specifically a kind of high modulus polyurethane water-repellent paint and
Its preparation method.
Background technology
Green building is an important directions of environmental protection problem in the urgent need to address in current social development, and roofing is green
Changing planting engineering is the important content in energy saving building and green building.The air quality in city can be improved in greenery patches, roof, effectively
Alleviate urban heat land effect, promote urban air view, the protection of environment is played the effect of particular importance.
Roof greening planting engineering is concentrated mainly on the positions such as roof or the basement roof of building and covers green vegetation, vacation
The view such as mountain, pond, builds the ecosystem made us pleasing, beautify the environment.And green roof is typically by planting of being planted
Thing, waterproof stopping area, water draining and accumulating device, heat insulation layer etc. form, and the most waterproof stopping area is particularly important, it is desirable to have waterproof
With root resistance dual-use function, it is possible to bear plant root whisker and puncture, keep water-proof function for a long time, and wearing of root system of plant can be prevented
Thorn, does not the most affect plant normal growth.Need formed waterproof layer in a word, should have high intensity to ensure resistance to wearing property of plant roots
Can, there is high resiliency (high-elongation) again to ensure the water-proof function of opposing cracking.Be provided simultaneously with having good workability, the side of operation
Just.
Roof greening planting engineering is faced with the problem of water leakage at present, and existing frequently-used waterproof material mainly adds
The SBS modified pitch of chemistry root resistance agent, the waterproof roll such as PVC, TPO.But waterproof roll generally exists overlap joint loosely produces seam
The problem of gap, it is bad all to there is overlap joint in almost all of product, the problem very easily just can peeled off.Other problem such as SBS
The processing temperature of modified pitch is up to 220 DEG C, and process time is up to 5 hours, can cause the decomposition of part chemistry root resistance agent；Typically
The fracture elongation of waterproof roll is less than 200%, thus finite elastic；Further, plantation waterproof layer water absorption rate be one important
Because watering for a long time above planted roof, index, requires that the water absorption rate of waterproof layer is low, and the water absorption rate of TPO reaches 5.0%, PVC's
Then reach 5.1%, thus affect waterproof effect.Waterproof roll occurs that bonding effect is poor (such as negative and positive in privileged sites are applied simultaneously
The bond strength of angle patch is weak) and go wrong in actual applications, therefore can not reach good waterproof root resistance effect.Commonly
Water-repellent paint mostly cannot meet the requirement of building implant system, does not reaches root resistance requirement because these material modulus are low, very
Easily penetrated by plant root tip, cause waterproof layer to destroy and seepage, directly result in the failure of " making buildings green " system.
At present, the conventional polyurethanes water-repellent paint elastic modelling quantity of buildings waterproof is low, thus the rigidity of material is little, resists lotus
Deformability under load effect is the most weak, thus can not reach the puncture-resistant requirement of root resistance.
Summary of the invention
For above-mentioned technical problem of the prior art, the invention provides a kind of high modulus polyurethane water-repellent paint and
Preparation method, described this high modulus polyurethane water-repellent paint and preparation method thereof to solve polyurethane of the prior art to be prevented
Water paint elastic modelling quantity is low, it is impossible to reach the technical problem of root resistance puncture-resistant requirement.
The invention provides a kind of high modulus polyurethane water-repellent paint, be made up of two components of A, B, count by weight
Calculating, its composition and content are as follows:
Component A:
Toluene di-isocyanate(TDI) 0～33 parts；
Methyl diphenylene diisocyanate 35～82 parts；
Polyether polyol 115～137 parts；
Dioctyl phthalate 15～30 parts；
B component:
Polyether-tribasic alcohol 65～79 parts；
3,3'-bis-chloro-4,4'-diaminodiphenyl-methane 29～35 parts；
Chlorinated paraffin 10～35 parts；
Filler 55～100 parts；
Catalyst 1～2 parts；
Chemistry root resistance agent B5 1～2 parts；
Defoamer B-0304 6～15 parts；
Described polyether polyol be the polyether Glycols of hydroxyl value 56mgKOH/g with the polyether-tribasic alcohol of hydroxyl value 56mgKOH/g by
Mixture according to 4.07:1～6.67:1 weight ratio composition；
Described filler is that more than the one or two kinds of in calcium carbonate, Kaolin, Pulvis Talci is according to mixing that arbitrary proportion forms
Compound；
Described catalyst is any one in dibutyl tin laurate or stannous octoate.
Further, above-mentioned a kind of high modulus polyurethane water-repellent paint, calculate by weight, its composition and content are such as
Under:
Component A:
Toluene di-isocyanate(TDI) 33 parts；
Methyl diphenylene diisocyanate 35 parts；
Polyether polyol 125 parts；
Dioctyl phthalate 20 parts；
B component:
Polyether-tribasic alcohol 72 parts；
3,3'-bis-chloro-4,4'-diaminodiphenyl-methane 32 parts；
Chlorinated paraffin 10 parts；
Filler 80 parts；
Catalyst 1 part；
Chemistry root resistance agent B5 2 parts；
Defoamer B-0304 10 parts；
Described polyether polyol is the polyether Glycols of 104 parts of hydroxyl values 56mgKOH/g and 21 parts of hydroxyl values are 56mgKOH/g polyethers
The mixture of trihydroxylic alcohol；
Described filler is 5 parts of calcium carbonate, 45 parts of Pulvis Talci, mixture of 30 parts of Kaolin compositions；
Described catalyst is dibutyl tin laurate.
Further, above-mentioned a kind of high modulus polyurethane water-repellent paint, calculate by weight, its composition and content are such as
Under:
Component A:
Toluene di-isocyanate(TDI) 19 parts；
Methyl diphenylene diisocyanate 51 parts；
Polyether polyol 115 parts；
Dioctyl phthalate 15 parts；
B component:
Polyether-tribasic alcohol 79 parts；
3,3 '-two chloro-4,4 '-diaminodiphenyl-methanes 29 parts；
Chlorinated paraffin 30 parts；
Filler 55 parts；
Catalyst 1 part；
Chemistry root resistance agent B5 1 part；
Defoamer B-0304 6 parts；
Described polyether polyol is the polyether Glycols of 100 parts of hydroxyl values 56mgKOH/g and 15 parts of hydroxyl values are 56mgKOH/g polyethers
The mixture of trihydroxylic alcohol；
Described filler is 30 parts of calcium carbonate, the mixture of 25 parts of Kaolin compositions；
Described catalyst is stannous octoate.
Further, above-mentioned a kind of high modulus polyurethane water-repellent paint, calculate by weight, its composition and content are such as
Under:
Component A:
Toluene di-isocyanate(TDI) 15 parts；
Methyl diphenylene diisocyanate 67 parts；
Polyether polyol 120 parts；
Dioctyl phthalate 25 parts；
B component:
Polyether-tribasic alcohol 65 parts；
3,3 '-two chloro-4,4 '-diaminodiphenyl-methanes 35 parts；
Chlorinated paraffin 35 parts；
Filler 75 parts；
Catalyst 1.5 parts；
Chemistry root resistance agent B5 2 parts；
Defoamer B-0304 12 parts；
Described polyether polyol is the polyether Glycols of 97 parts of 56mgKOH/g of hydroxyl value and 23 parts of 56mgKOH/g polyether-tribasic alcohols
Mixture；
Described filler is 25 parts of calcium carbonate, 25 parts of Pulvis Talci, mixture of 25 parts of Kaolin compositions；
Described catalyst is stannous octoate.
Further, above-mentioned a kind of high modulus polyurethane water-repellent paint, calculate by weight, its composition and content are such as
Under:
Component A:
Methyl diphenylene diisocyanate 82 parts；
Polyether polyol 137 parts；
Dioctyl phthalate 30 parts；
B component:
Polyether-tribasic alcohol 70 parts；
3,3 '-two chloro-4,4 '-diaminodiphenyl-methanes 31 parts；
Chlorinated paraffin 25 parts；
Filler 100 parts；
Catalyst 2 parts；
Chemistry root resistance agent B5 1.5 parts；
Defoamer B-0304 15 parts；
Described polyether polyol is the polyether Glycols of 110 parts of hydroxyl values 56mgKOH/g and 27 parts of hydroxyl values are 56mgKOH/g polyethers
The mixture of trihydroxylic alcohol；
Described filler is 20 parts of calcium carbonate, 50 parts of Pulvis Talci, mixture of 30 parts of Kaolin compositions；
Described catalyst is dibutyl tin laurate.
Present invention also offers the preparation method of above-mentioned high modulus polyurethane water-repellent paint, comprise the steps:
1) step preparing A component:
A) toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, polyether polyol and adjacent benzene two are weighed according to parts by weight
Formic acid dioctyl ester；
B) adding polyether polyol in the reactor, stirring is warmed up to 110 DEG C～120 DEG C, is decompressed to-0.09MPa, is dehydrated 1.5
～2.5 hours；
C) 80 DEG C～85 DEG C are reduced the temperature to, addition toluene di-isocyanate(TDI) or toluene di-isocyanate(TDI) and 0～58% weight portion
The mixture of the methyl diphenylene diisocyanate composition of number, under nitrogen protection and stirring, 80 DEG C～85 DEG C reactions 1.5
～2.5 hours；
D) whole or remaining methyl diphenylene diisocyanate is added at 80 DEG C～85 DEG C, insulated and stirred 1～2 hours, fall
Temperature is to 50～65 DEG C, and after adding dioctyl phthalate mix homogeneously, cooling discharging obtains component A；
2) step preparing B component:
A) weigh polyether-tribasic alcohol, 3,3 '-two chloro-4,4 '-diaminodiphenyl-methanes, chlorinated paraffin according to parts by weight, fill out
Material, catalyst, chemistry root resistance agent B5, defoamer B-0304；
B) in another one reactor add polyether-tribasic alcohol, 3,3 '-two chloro-4,4 '-diaminodiphenyl-methane, filler,
Chlorinated paraffin stirring is warming up to 110 DEG C～120 DEG C, is decompressed to-0.09MPa and is dehydrated 1～1.5 hour；
C) cool the temperature to 50～65 DEG C, add catalyst, defoamer B-0304 and chemistry root resistance agent B5, insulated and stirred 20～
40min, after mix homogeneously, cooling discharge obtains B component.
3) by component A and the ratio mix homogeneously of B component 1:1 by weight ratio, film molding.
The present invention is embodied by specific double cross connection polyurethane structural, and this specific double cross connection polyurethane structural contains
There are general base polyurethane prepolymer for use as and polyamine, polyether polyol to react the cross-linked structure formed, also contain isocyanates with many
The cross-linked structure that unit's amine, polyether polyol reaction are formed.Wherein isocyanates and polyamine, polyether polyol react the friendship formed
Connection structure is provided that waterproof coating high-modulus (elastic modelling quantity), and the greater stiffness that high-modulus is caused makes material have significantly
Improve the ability that resistance to root system of plant punctures.And base polyurethane prepolymer for use as and polyamine, polyether polyol react the cross-linked structure formed
It is provided that waterproof coating high intensity and high resiliency (high fracture elongation), therefore the high modulus polyurethane water-repellent paint tool of the present invention
There are modulus height, intensity big and high resiliency feature.Deformability under high modulus polyurethane water-repellent paint opposing load action is big, and
Containing chemistry root resistance agent, therefore root resistance effect is obvious.The high resiliency of water-repellent paint can ensure that and occurs necessarily at waterproof matrix simultaneously
Waterproof effect is not affected in the case of deformation.The high modulus polyurethane water-repellent paint of the present invention is waterproof as roof greening plantation
During layer, entirety spreadability is good, it is possible to realizes whole planted roof seamless link and becomes an overall waterproof stopping area, glues with substrate
Close firmly, it is to avoid the overlap joint hidden danger of waterproof roll and a negative and positive angle patch difficult problem, thus have the most waterproof overall with root resistance
Effect.The construction of the high modulus polyurethane water-repellent paint of the present invention is cold operation, simple and convenient, it is to avoid in waterproof coiled material construction
Bonding, overlap and heat, saving of work and time.
It addition, the high modulus polyurethane water-repellent paint of the present invention, due to double cross-linked structures, therefore waterproof painting is greatly improved
A series of mechanical properties of film and thermostability, and water absorption rate is extremely low, low-temperature bending is good.
The present invention compares with prior art, and its technological progress is significant.It is green at roofing that the present invention solves waterproof roll
Change the technical problem of the waterproof root resistance weak effect that can face in planting engineering application.A kind of high modulus polyurethane of the present invention is waterproof
The Main Mechanical of coating, according to GB/T 19250～2013 " polyurethane water-proof paint " standard testing, elastic modelling quantity is
22.70～25.15MPa, hot strength is 7.43～10.00MPa, and fracture elongation is 465.49～612.58%.According to JC/
Waterproof roll root-resistant puncturing performance test side in T1075～2008 " planted roof root resistant waterproof roll " standard appendix A
Method test result is for passing through.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further, but is not limiting as the present invention.
Various raw materials used by the present invention are and are commercially for conventional raw material prepared by polyurethane water-proof paint.Chemistry resistance
Root agent B5 is provided by Lang Sheng Chemical Co., Ltd..
Stretch modulus, hot strength, fracture elongation are all according to GB/T 19250～2013 " polyurethane water-proof paint " state
Family's standard detection；Root-resistant puncturing performance is examined according to JC/T 1075～2008 " planted roof root resistant waterproof roll " standard
Survey.
Embodiment 1
A kind of preparation method of high modulus polyurethane water-repellent paint, step is as follows:
A component:
Adding 104 weight portion polyether Glycols and 21 weight portion polyether-tribasic alcohols in the reactor, stirring is warmed up to 120 DEG C, subtracts
It is depressed under-0.09MPa dehydration 1.5 hours；Reduce the temperature to 80 DEG C, add 33 parts by weight of toluene diisocyanate, protect at nitrogen
Protecting and under stirring, 80 DEG C are reacted 2.5 hours；Keep the temperature at 80 DEG C, add 35 weight portion diphenyl methane two isocyanides
Acid esters, under 85 DEG C of stirrings, is incubated 1 hour；It is cooled to 60 DEG C, adds 20 weight portion dioctyl phthalate mixing all
After even, cooling discharging obtains component A.
B component:
Add 72 weight portion polyether-tribasic alcohols in the reactor, 32 weight portions 3,3 '-two chloro-4,4 '-diaminodiphenyl-methane,
5 weight parts of calcium carbonate, 45 weight portion Pulvis Talci, 30 parts by weight kaolin clay, 40 weight portion chlorinated paraffin stirrings are warmed up to 120 DEG C,
It is decompressed under-0.09MPa dehydration 1 hour；Cool the temperature to 60 DEG C, add 10 weight portion defoamer B-0304,1 weight portion February
Dilaurylate and 2 weight portion chemistry root resistance agent B5, stir 40min, and after mix homogeneously, after cooling, discharging obtains B component.
By component A and the ratio mix homogeneously of B component 1:1 by weight ratio, film molding.Its performance indications are as follows: bullet
Property modulus (stretching) is 25.15MPa, and hot strength is 10.00MPa, and elongation at break is 465.49%.Root-resistant puncturing performance is led to
Cross.
Embodiment 2
A kind of preparation method of high modulus polyurethane water-repellent paint, step is as follows:
A component:
Adding 100 weight portion polyether Glycols and 15 weight portion polyether-tribasic alcohols in the reactor, stirring is warmed up to 115 DEG C, subtracts
It is depressed under-0.09MPa dehydration 2 hours；Reduce the temperature to 85 DEG C, add 19 parts by weight of toluene diisocyanate and 16 weight portions two
Methylenebis phenyl isocyanate, under nitrogen protection and stirring, 85 DEG C are reacted 1.5 hours；Keep the temperature at 83 DEG C, add
Enter 35 weight portion methyl diphenylene diisocyanates, under 85 DEG C of stirrings, be incubated 1.5 hours；It is cooled to 55 DEG C, add
After 15 weight portion dioctyl phthalate mix homogeneously, cooling discharging obtains component A.
B component:
Add 79 weight portion polyether-tribasic alcohols in the reactor, 29 weight portions 3,3 '-two chloro-4,4 '-diaminodiphenyl-methane,
25 weight portion Pulvis Talci, 30 weight parts of calcium carbonate, 30 weight portion chlorinated paraffin stirrings are warmed up to 110 DEG C, are decompressed to-0.09MPa
Lower dehydration 1.5 hours；Cool the temperature to 50 DEG C, add 6 weight portion defoamer B-0304,1 parts by weight of octanoic acid stannous and 1 weight portion
Chemistry root resistance agent B5, stirs 35min, and after mix homogeneously, after cooling, discharging obtains B component.
By component A and the ratio mix homogeneously of B component 1:1 by weight ratio, film molding.Its performance indications are as follows: bullet
Property modulus (stretching) is 23.80MPa, and hot strength is 8.56MPa, and elongation at break is 609.42%.Root-resistant puncturing performance is led to
Cross.
Embodiment 3
A kind of preparation method of high modulus polyurethane water-repellent paint, step is as follows:
A component:
Adding 97 weight portion polyether Glycols and 23 weight portion polyether-tribasic alcohols in the reactor, stirring is warmed up to 110 DEG C, subtracts
It is depressed under-0.09MPa dehydration 2.5 hours；Reduce the temperature to 83 DEG C, add 15 weight of toluene diisocyanate, 32 weight portions two
Methylenebis phenyl isocyanate, under nitrogen protection and stirring, 83 DEG C are reacted 2 hours；Keep the temperature at 83 DEG C, add
35 weight portion methyl diphenylene diisocyanates, under 80 DEG C of stirrings, are incubated 2 hours；It is cooled to 65 DEG C, adds 25 weight
After part dioctyl phthalate mix homogeneously, cooling discharging obtains component A.
B component:
Add 65 weight portion polyether-tribasic alcohols in the reactor, 35 weight portions 3,3 '-two chloro-4,4 '-diaminodiphenyl-methane,
25 weight portion Pulvis Talci, 25 weight parts of calcium carbonate, 25 parts by weight kaolin clay, 35 weight portion chlorinated paraffin stirrings are warmed up to 115 DEG C,
It is decompressed under-0.09MPa dehydration 1.25 hours；Cool the temperature to 65 DEG C, add 12 weight portion defoamer B-0304,1.5 weight
Part tin octoate and 2 weight portion chemistry root resistance agent B5, stir 20min, and after being uniformly dispersed, after cooling, discharging obtains B component.
By component A and the ratio mix homogeneously of B component 1:1 by weight ratio, film molding.Its performance indications are as follows: bullet
Property modulus (stretching) is 22.70MPa, and hot strength is 8.84MPa, and elongation at break is 508.53%.Root-resistant puncturing performance is led to
Cross.
Embodiment 4
A kind of preparation method of high modulus polyurethane water-repellent paint, step is as follows:
A component:
Adding 110 weight portion polyether Glycols and 27 weight portion polyether-tribasic alcohols in the reactor, stirring is warmed up to 110 DEG C, subtracts
It is depressed under-0.09MPa dehydration 2.5 hours；Cool the temperature to 85 DEG C, add 47.6 weight portion methyl diphenylene diisocyanates,
Under nitrogen protection and stirring, 85 DEG C are reacted 1.5 hours；Keep the temperature at 85 DEG C, add 34.4 weight portion diphenylmethyls
Alkane diisocyanate, under 83 DEG C of stirrings, is incubated 1.5 hours；It is cooled to 50 DEG C, adds 30 weight portion phthalic acids two
After monooctyl ester mix homogeneously, cooling discharging obtains component A.
B component:
Add 70 weight portion polyether-tribasic alcohols in the reactor, 31 weight portions 3,3 '-two chloro-4,4 '-diaminodiphenyl-methane,
50 weight portion Pulvis Talci, 20 weight parts of calcium carbonate, 30 parts by weight kaolin clay, 25 weight portion chlorinated paraffin stirrings are warmed up to 120 DEG C,
It is decompressed under-0.09MPa dehydration 1 hour；Cool the temperature to 55 DEG C, add 15 weight portion defoamer B-0304,2 weight portion February
Dilaurylate and 1.5 weight portion chemistry root resistance agent B5, stir 30min, and after mix homogeneously, after cooling, discharging obtains B group
Point.
By component A and the ratio mix homogeneously of B component 1:1 by weight ratio, film molding.Its performance indications are as follows: bullet
Property modulus (stretching) is 24.91MPa, and hot strength is 7.43MPa, and elongation at break is 612.58%.Root-resistant puncturing performance is led to
Cross.
Above said content is only the basic explanation under present inventive concept, and according to technical scheme made any etc.
Effect conversion, all should belong to protection scope of the present invention.
Claims (6)
1. a high modulus polyurethane water-repellent paint, is made up of two components of A, B, it is characterised in that calculate by weight, its
Composition and content are as follows:
Component A:
B component:
Described polyether polyol be the polyether Glycols of hydroxyl value 56mgKOH/g with the polyether-tribasic alcohol of hydroxyl value 56mgKOH/g by
Mixture according to 4.07:1～6.67:1 weight ratio composition；
Described filler is that more than the one or two kinds of in calcium carbonate, Kaolin, Pulvis Talci is according to mixing that arbitrary proportion forms
Compound；
Described catalyst is any one in dibutyl tin laurate or stannous octoate.
2. a kind of high modulus polyurethane water-repellent paint as claimed in claim 1, it is characterised in that calculate by weight, its group
Become and content be as follows:
Component A:
B component:
Described polyether polyol is the polyether Glycols of 104 parts of hydroxyl values 56mgKOH/g and 21 parts of hydroxyl values are 56mgKOH/g polyethers
The mixture of trihydroxylic alcohol；
Described filler is 5 parts of calcium carbonate, 45 parts of Pulvis Talci, mixture of 30 parts of Kaolin compositions；
Described catalyst is dibutyl tin laurate.
3. a kind of high modulus polyurethane water-repellent paint as claimed in claim 1, it is characterised in that calculate by weight, its group
Become and content be as follows:
Component A:
B component:
Described polyether polyol is the polyether Glycols of 100 parts of hydroxyl values 56mgKOH/g and 15 parts of hydroxyl values are 56mgKOH/g polyethers
The mixture of trihydroxylic alcohol；
Described filler is 30 parts of calcium carbonate, the mixture of 25 parts of Kaolin compositions；
Described catalyst is stannous octoate.
4. a kind of high modulus polyurethane water-repellent paint as claimed in claim 1, it is characterised in that calculate by weight, its group
Become and content be as follows:
Component A:
B component:
Described polyether polyol is the polyether Glycols of 97 parts of 56mgKOH/g of hydroxyl value and 23 parts of 56mgKOH/g polyether-tribasic alcohols
Mixture；
Described filler is 25 parts of calcium carbonate, 25 parts of Pulvis Talci, mixture of 25 parts of Kaolin compositions；
Described catalyst is stannous octoate.
5. a kind of high modulus polyurethane water-repellent paint as claimed in claim 1, it is characterised in that calculate by weight, its group
Become and content be as follows:
Component A:
Methyl diphenylene diisocyanate 82 parts；
Polyether polyol 137 parts；
Dioctyl phthalate 30 parts；
B component:
Described polyether polyol is the polyether Glycols of 110 parts of hydroxyl values 56mgKOH/g and 27 parts of hydroxyl values are 56mgKOH/g polyethers
The mixture of trihydroxylic alcohol；
Described filler is 20 parts of calcium carbonate, 50 parts of Pulvis Talci, mixture of 30 parts of Kaolin compositions；
Described catalyst is dibutyl tin laurate.
6. the preparation method of the high modulus polyurethane water-repellent paint as described in arbitrary in claim 1-5, it is characterised in that include
Following steps:
1) step of a preparation component A:
A) toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, polyether polyol and adjacent benzene two are weighed according to parts by weight
Formic acid dioctyl ester；
B) adding polyether polyol in the reactor, stirring is warmed up to 110 DEG C～120 DEG C, is decompressed to-0.09MPa, is dehydrated 1.5
～2.5 hours；
C) 80 DEG C～85 DEG C are reduced the temperature to, addition toluene di-isocyanate(TDI) or toluene di-isocyanate(TDI) and 0～58% weight portion
The mixture of the methyl diphenylene diisocyanate composition of number, under nitrogen protection and stirring, 80 DEG C～85 DEG C reactions 1.5
～2.5 hours；
D) whole or remaining methyl diphenylene diisocyanate is added at 80 DEG C～85 DEG C, insulated and stirred 1～2 hours, fall
Temperature is to 50～65 DEG C, and after adding dioctyl phthalate mix homogeneously, cooling discharging obtains component A；
2) step of a preparation B component:
A) weigh polyether-tribasic alcohol, 3,3 '-two chloro-4,4 '-diaminodiphenyl-methanes, chlorinated paraffin according to parts by weight, fill out
Material, catalyst, chemistry root resistance agent B5, defoamer B-0304；
B) in another one reactor add polyether-tribasic alcohol, 3,3 '-two chloro-4,4 '-diaminodiphenyl-methane, filler,
Chlorinated paraffin stirring is warming up to 110 DEG C～120 DEG C, is decompressed to-0.09MPa and is dehydrated 1～1.5 hour；
C) cool the temperature to 50～65 DEG C, add catalyst, defoamer B-0304 and chemistry root resistance agent B5, insulated and stirred 20～
40min, after mix homogeneously, cooling discharge obtains B component.
3) by component A and the ratio mix homogeneously of B component 1:1 by weight ratio, film molding.
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