CN106279615B - A kind of polyurethane aqueous dispersion body and preparation method thereof that polyester polyethers is mixed and modified - Google Patents
A kind of polyurethane aqueous dispersion body and preparation method thereof that polyester polyethers is mixed and modified Download PDFInfo
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- CN106279615B CN106279615B CN201610778397.6A CN201610778397A CN106279615B CN 106279615 B CN106279615 B CN 106279615B CN 201610778397 A CN201610778397 A CN 201610778397A CN 106279615 B CN106279615 B CN 106279615B
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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
- C08G18/08—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
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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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
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
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- 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
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- 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
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
- C08G18/4241—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols from dicarboxylic acids and dialcohols in combination with polycarboxylic acids and/or polyhydroxy compounds which are at least trifunctional
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- 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
- C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
- C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
- C08G18/425—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids the polyols containing one or two ether groups
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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
- C08G18/4825—Polyethers containing two hydroxy groups
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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
- C08G18/4833—Polyethers containing oxyethylene units
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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
- C08G18/65—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
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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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
- 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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Abstract
The invention discloses a kind of polyurethane aqueous dispersion bodies that polyester polyethers is mixed and modified, comprising: at least one number-average molecular weight is 500-3000, acid value is 5mgKOH/g or less, hydroxyl value 100-300mgKOH/g, the polyester polyol for being contained in 95% or more admittedly；At least one molecular weight is the polyether Glycols of 500-3000；At least one dihydric alcohol or trihydroxylic alcohol；It is at least one containing can with the functional group of anionic and contain at least two functional groups that can be reacted with isocyanate group compound；At least one non-ring type aliphatic diisocyanate or alicyclic diisocyanate；At least one ammoniate；At least one solvent.The mixed and modified polyurethane aqueous dispersion body of polyester polyethers prepared by the present invention has excellent storage stability, preferable water resistance and resistance to hydrolyzable.
Description
Technical field
The invention belongs to technical field of coatings more particularly to a kind of polyurethane aqueous dispersion body that polyester polyethers is mixed and modified and
Preparation method.
Background technique
In recent years, under the background of increasingly severeer environmental legislation, water-base resin has free from environmental pollution, energy saving, peace
Congruent advantage, so the Water-borne modification of resin becomes more and more important.Polyurethane is one of synthetic resin of excellent combination property, by
In its synthon is wide in variety, reaction condition is mild, single-minded, controllable, formula adjustment leeway is big and its high molecular material it is microcosmic
Structure (there are micron-scale phase separations) feature, can be widely applied to coating, adhesive, foamed plastics, synthetic fibers and its elastomer,
Have become one of people's clothing, food, lodging and transportion -- basic necessities of life and the essential synthetic material of high-technology field.In summary two o'clock content is gathered
The Water-borne modification of urethane all becomes more and more important in each field.
In paint field, it is contemplated that water resistance, it is generally in the majority with dispersions of polyurethanes (hereafter being claimed with PUD generation).Currently,
The synthetic method of PUD is acetone method or prepolymer method, in which: prepolymer method generally first synthesizes the poly- of a certain molecular weight
Ester polyol is reacted using with isocyanates, hydrophilic chain extender, and reactant is after neutralizing, and dispersion forms poly- in water
Urethane dispersion, the product of this synthetic method are commonly referred to as polyester modification PUD.Since ester group is compared with facile hydrolysis, when with storage
Between increase, there is the trend that is gradually reduced of performance after hydrolysis chain rupture in polyester modification PUD；In addition, general polyester modification PUD is equal
For ionic dispersion, dispersion performance leans on the ionic effect of hydrophilic radical substantially, and dispersion performance not enough will cause between particle gradually
Cohesion, precipitating, and the hydrolyzable of polyester can be accelerated.
In view of this, it is necessary to provide a kind of dispersions of polyurethanes with excellent storage stability.
Summary of the invention
For the bad defect of dispersions of polyurethanes storage stability in the prior art, the object of the present invention is to provide one kind
The mixed and modified polyurethane aqueous dispersion body of polyester polyethers has excellent storage stability, preferable water resistance and Nai Jia moisture
Xie Xing.
It is a further object to provide a kind of systems of polyurethane aqueous dispersion body that the polyester polyethers is mixed and modified
Preparation Method.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
One aspect of the present invention provides a kind of polyurethane aqueous dispersion body that polyester polyethers is mixed and modified, comprising:
At least one number-average molecular weight is 500-3000, acid value is 5mgKOH/g or less (based on hard resin), hydroxyl value is
100-300mgKOH/g(be based on hard resin), be contained in admittedly 95% or more polyester polyol；
At least one molecular weight is the polyether Glycols of 500-3000；
At least one dihydric alcohol or trihydroxylic alcohol；
It is at least one containing can be reacted with isocyanate group with the functional group of anionic and containing at least two
The compound of functional group；
At least one non-ring type aliphatic diisocyanate or alicyclic diisocyanate；
At least one ammoniate；And
At least one solvent.
One aspect of the present invention provides a kind of polyurethane aqueous dispersion body that polyester polyethers is mixed and modified, comprising following heavy
Measure the component of part:
At least one number-average molecular weight is 500-3000, acid value is 5mgKOH/g or less (based on hard resin), hydroxyl value is
100-300mgKOH/g(is based on hard resin), be contained in 5 ~ 30 parts of polyester polyol of 95% or more admittedly；
At least one molecular weight is 2 ~ 14 parts of polyether Glycols of 500-3000；
At least one dihydric alcohol or 0.5 ~ 12 part of trihydroxylic alcohol；
It is at least one containing can be reacted with isocyanate group with the functional group of anionic and containing at least two
0.5 ~ 3 part of the compound of functional group；
At least one non-ring type aliphatic diisocyanate or 8 ~ 18 parts of alicyclic diisocyanate；
0.5 ~ 3 part of at least one ammoniate；And
10 ~ 80 parts of at least one solvent.
The polyether Glycols be molecular weight be 500 polypropylene glycol, molecular weight be 1000 polypropylene glycol, molecular weight be
Polyethylene glycol that polyethylene glycol that 3000 polypropylene glycol, molecular weight are 500, molecular weight are 1000, molecular weight be 3000 it is poly-
In the polytetramethylene glycol that polytetramethylene glycol that polytetramethylene glycol that ethylene glycol, molecular weight are 1000, molecular weight are 3000, molecular weight are 2000
At least one.
The dihydric alcohol is ethylene glycol, 1,2- propylene glycol, 1,3- propylene glycol, 1,3 butylene glycol, 1,4- butanediol, 2,3- fourth
Glycol, 1,6-HD, 2,5-HD, trimethyl hexylene glycol, diethylene glycol (DEG), triethylene glycol, A Hydrogenated Bisphenol A, 1,4- cyclohexanediol,
At least one of 1,4 cyclohexane dimethanol, neopentyl glycol and/or trimethylpentanediol.
The trihydroxylic alcohol is at least one of trimethylolpropane, trimethylolethane, glycerine.
It is described containing can with the functional group of anionic and contain at least two functions that can be reacted with isocyanate group
The compound of group is dihydromethyl propionic acid.
The non-ring type aliphatic diisocyanate or alicyclic diisocyanate are isophorone diisocyanate, 1,
4- fourth diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, 1,4- bis-
Isocyanate group hexamethylene, double-(4- isocyanato cyclohexyl) methane, at least one in trimethyl -1,6- diisocyanate base hexane
Kind.
The ammoniate is triethylamine, ethylenediamine, ammonium hydroxide, triethanolamine, dimethylethanolamine, methylamine, ethamine, third
Amine, 2- methyl-2-amino propyl alcohol, dimethylisopro panolamine, methyl diethanolamine, ethyl diisopropylamine, in diethyl ethylene diamine
At least one.
The solvent is water.
The mixed and modified polyurethane aqueous dispersion body number-average molecular weight of the polyester polyethers 1000 or more, preferably 1000 ~
5000；Hydroxyl value is between 0 ~ 300, and preferably 80 ~ 180；Solid content is 40.0%.
Another aspect of the present invention provides a kind of preparation side of polyurethane aqueous dispersion body that polyester polyethers is mixed and modified
Method, comprising the following steps:
It is 500-3000 by least one number-average molecular weight, acid value is 5mgKOH/g or less (based on hard resin), hydroxyl value
Be that 100-300mgKOH/g(is based on hard resin), be contained in 95% or more polyester polyol admittedly, at least one molecular weight is
The polyether Glycols of 500-3000, at least one dihydric alcohol or trihydroxylic alcohol and at least one containing can be with the functional group of anionic
And heating is mixed in the compound containing at least two functional groups that can be reacted with isocyanate group, is then added at least
A kind of non-ring type aliphatic diisocyanate or alicyclic diisocyanate heat preservation, are added at least one ammoniate after cooling
It neutralizes, is eventually adding at least one solvent heat preservation, the mixed and modified polyurethane aqueous dispersion body of the polyester polyethers is obtained after cooling.
Due to the adoption of the above technical scheme, the present invention has the following advantages and beneficial effects:
The mixed and modified polyurethane aqueous dispersion body of polyester polyethers prepared by the present invention in polyurethane aqueous dispersion body by drawing
Enter polyether Glycols, reduces the hydrolysis rate of entire polyester segment, and imitate by ionic effect and non-ionic steric hindrance
The storage stability of resin should be made to greatly enhance in conjunction with the dispersibility for further increasing polyurethane aqueous dispersion body.Present invention preparation
The mixed and modified polyurethane aqueous dispersion body of polyester polyethers there is excellent storage stability, preferable water resistance and Nai Jia moisture
Xie Xing.
Specific embodiment
In order to illustrate more clearly of the present invention, below with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, this should not be limited with this
The protection scope of invention.
In the case of being clear from, explaining to the purpose of the present invention by following embodiment, the component of the composition
It is released using parts by weight as the universal standard bright.In the absence of special instructions, for simplicity, institute in the embodiment of the present invention
" part " and the parts by weight meaning having the same stated.
Embodiment 1
The preparation of first polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 18.45 parts of neopentyl glycols, 20.97 parts of 1,6- hexylene glycols, 18.8 parts of diethylene glycols, 60.89 parts of 1,6- adipic acids are added,
After being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour, continue to be warming up to 230 in 5 hours
℃.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；80 DEG C are subsequently cooled to hereinafter, obtaining acid value and being
1mgKOH/g, hydroxyl value 124mgKOH/g, number-average molecular weight 900, the first polyester polyol for being contained in 95% or more admittedly.
The preparation of the mixed and modified polyurethane aqueous dispersion body of polyester polyethers
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 9.13 part of first polyester polyol being prepared, 2.74 parts of dihydromethyl propionic acids, 0.7 part of 1,6- hexylene glycol is added, point
13.29 parts of polyethylene glycol that son amount is 3000, lasting stirring is warming up to 80 DEG C, and during reaching 80 DEG C, 13.29 parts of different Buddhists are added
That ketone diisocyanate, lasting heat preservation are reacted at 80 DEG C, until NCO equivalent is 1091, obtain the polyurethane polymerization of NCO sealing end
Object；Then 50 DEG C are cooled to, 2.07 parts of triethylamines are added and neutralize, 40.64 parts of deionized waters are added after neutralization, it is pre- to obtain polyurethane
Aggressiveness dispersion liquid；0.77 part of ethylenediamine and 15.49 parts of deionized waters is added, is warming up to 60 DEG C and keeps the temperature 1 hour, performed polymer chain extension is complete
Cheng Hou is cooled to 40 DEG C, obtains the polyester polyethers that solid content is 40.0%, hydroxyl value 2mgKOH/g, number-average molecular weight are 140000
Mixed and modified polyurethane aqueous dispersion body.
Initial stage, appearance are visually translucent inclined milky white liquid；Storage is after 3 months under conditions of temperature is 40 DEG C, outside
Sight is visually translucent inclined milky white liquid；For storage after 6 months, appearance is visually milky liquid under conditions of temperature is 40 DEG C
Body.
Initial stage partial size is 107nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 124nm.
Initial stage acid value is 29 mgKOH/g；For storage after 3 months, acid value is 29 mgKOH/ under conditions of temperature is 40 DEG C
g。
Water-resistance property of coating is preferable.
Embodiment 2
The preparation of second polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, be added 25.03 parts of neopentyl glycols, 21.45 parts of 1,6- hexylene glycols, 7.51 parts of trimethylolpropanes, 58.4 parts of 1,6- oneself two
Acid, after being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour, continue to be warming up to for 5 hours
230℃.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；80 DEG C are subsequently cooled to hereinafter, obtaining acid
Valence is 1mgKOH/g, hydroxyl value 122mgKOH/g, number-average molecular weight 1250, the second polyester polyol for being contained in 95% or more admittedly.
The preparation of the mixed and modified polyurethane aqueous dispersion body of polyester polyethers
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 19.33 part of second polyester polyol being prepared, 2.69 parts of dihydromethyl propionic acids, 4.3 parts of trihydroxy methyls third are added
The polyethylene glycol that alkane, 3.22 parts of molecular weight are 500, lasting stirring is warming up to 80 DEG C, during reaching 80 DEG C, is added 10.74 parts
Isophorone diisocyanate, lasting heat preservation are reacted at 80 DEG C, until absorption peak of the NCO in IR spectrum disappears；Then cool down
To 50 DEG C, 1.99 parts of triethylamines are added and neutralize, 53.71 parts of deionized waters are added after neutralization, keeps the temperature 1 hour, is cooled to 40 DEG C, obtains
The polyurethane water mixed and modified to the polyester polyethers that solid content is 40.0%, hydroxyl value 138mgKOH/g, number-average molecular weight are 1550
Dispersion.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Translucent liquid；For storage after 6 months, appearance is visually translucent liquid under conditions of temperature is 40 DEG C.
Initial stage partial size is 78nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 78nm.
Initial stage acid value is 28 mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 28mgKOH/g.
Water-resistance property of coating is fabulous.
Embodiment 3
The preparation of third polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 16.13 parts of neopentyl glycols, 2.69 parts of diethylene glycols, 24.19 parts of 1,6- hexylene glycols, 11.65 parts of trihydroxy methyls third are added
Alkane, 54.66 parts of 1,6- adipic acids, after being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；160 DEG C are kept for 1 hour
Afterwards, continue to be warming up to 230 DEG C in 5 hours.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；Then it cools down
It is 1mgKOH/g, hydroxyl value 165mgKOH/g, number-average molecular weight 980, is contained in 95% or more admittedly hereinafter, obtaining acid value to 80 DEG C
Third polyester polyol.
The preparation of the mixed and modified polyurethane aqueous dispersion body of polyester polyethers
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, it is 1000 that 20.91 parts of third polyester polyol being prepared, 2.88 parts of dihydromethyl propionic acids, molecular weight, which is added,
5.45 parts of polypropylene glycols, 2.74 parts of trimethylolpropanes, lasting stirring is warming up to 80 DEG C, during reaching 80 DEG C, is added 8.14
Part hexamethylene diisocyanate, lasting heat preservation are reacted at 80 DEG C, until absorption peak disappearance of the NCO in IR spectrum；Then it drops
Temperature is added 2.18 parts of triethylamines and neutralizes, 54.25 parts of deionized waters are added after neutralization, keep the temperature 1 hour, be cooled to 40 DEG C to 50 DEG C,
Obtain the mixed and modified polyurethane of solid content is 40.0%, hydroxyl value 114mgKOH/g, number-average molecular weight are 2000 polyester polyethers
Aqueous dispersion.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Translucent liquid；For storage after 6 months, appearance is visually translucent liquid under conditions of temperature is 40 DEG C.
Initial stage partial size is 66nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 63nm.
Initial stage acid value is 30mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 30mgKOH/g.
Water-resistance property of coating is fabulous.
Embodiment 4
The preparation of 4th polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, be added 5.38 parts of neopentyl glycols, 3.41 parts of diethylene glycols, 32.26 parts of 1,6- hexylene glycols, 14.87 parts of trimethylolpropanes,
62.72 parts of 1,6- adipic acids, after being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour,
Continue to be warming up to 230 DEG C in 5 hours.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；It is subsequently cooled to
80 DEG C are 1mgKOH/g, hydroxyl value 102mgKOH/g, number-average molecular weight 2700, are contained in 95% or more admittedly hereinafter, obtaining acid value
Third polyester polyol.
The preparation of the mixed and modified polyurethane aqueous dispersion body of polyester polyethers
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, it is 2000 that 11.19 part of the 4th polyester polyol being prepared, 2.65 parts of dihydromethyl propionic acids, molecular weight, which is added,
7.69 parts of polytetramethylene glycols, 5.94 parts of trimethylolpropanes, lasting stirring is warming up to 80 DEG C, during reaching 80 DEG C, is added 12.58
Part isophorone diisocyanate, lasting heat preservation are reacted at 80 DEG C, until absorption peak disappearance of the NCO in IR spectrum；Then it drops
Temperature is added 2 parts of triethylamines and neutralizes, 55.33 parts of deionized waters are added after neutralization, keep the temperature 1 hour, be cooled to 40 DEG C, obtain to 50 DEG C
The polyurethane water mixed and modified to the polyester polyethers that solid content is 40.0%, hydroxyl value 111mgKOH/g, number-average molecular weight are 2600
Dispersion.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Translucent liquid；For storage after 6 months, appearance is visually translucent liquid under conditions of temperature is 40 DEG C.
Initial stage partial size is 83nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 86nm.
Initial stage acid value is 28mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 28mgKOH/g.
Water-resistance property of coating is fabulous.
Comparative example 1
The preparation of 5th polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, be added 35.96 parts of neopentyl glycols, 4.64 parts of diethylene glycols, 6.96 parts of 1,6- hexylene glycols, 6.96 parts of trimethylolpropanes,
69.61 parts of 1,6- adipic acids, after being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour,
Continue to be warming up to 230 DEG C in 5 hours.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；It is subsequently cooled to
80 DEG C hereinafter, obtain the 5th polyester polyol that acid value is 1mgKOH/g, hydroxyl value 52mgKOH/g, number-average molecular weight are 4500.
The preparation of water-dispersible polyester modified polyurethane resin
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 9.01 part of the 5th polyester polyol being prepared, 2.7 parts of dihydromethyl propionic acids, 8.44 that molecular weight is 1000 are added
Part polyethylene glycol, 5.82 parts of trimethylolpropanes, lasting stirring is warming up to 80 DEG C, and during reaching 80 DEG C, 13.93 parts of addition is different
Isophorone diisocyanate, lasting heat preservation are reacted at 80 DEG C, until absorption peak of the NCO in IR spectrum disappears；Then it is cooled to
50 DEG C, 2.04 parts of triethylamines are added and neutralize, 54.92 parts of deionized waters are added after neutralization, keeps the temperature 1 hour, is cooled to 40 DEG C, obtains
The water-dispersible polyester modified polyurethane resin that solid content is 40.0%, hydroxyl value 96mgKOH/g, number-average molecular weight are 3500.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Translucent liquid；For storage after 6 months, appearance is visually translucent liquid under conditions of temperature is 40 DEG C.
Initial stage partial size is 43nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 58nm.
Initial stage acid value is 28mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 27mgKOH/g.
Water-resistance property of coating is poor.
Comparative example 2
The preparation of 6th polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, be added 18.18 parts of neopentyl glycols, 8 parts of diethylene glycols, 16.36 parts of 1,6- hexylene glycols, 12.73 parts of trimethylolpropanes,
63.64 parts of 1,6- adipic acids, after being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour,
Continue to be warming up to 230 DEG C in 5 hours.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；It is subsequently cooled to
80 DEG C hereinafter, obtain the 6th polyester polyols that acid value is 1mgKOH/g, hydroxyl value 104mgKOH/g, number-average molecular weight are 2150
Alcohol.
The preparation of water-dispersible polyester modified polyurethane resin
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, it is 2000 that 5.58 part of the 6th polyester polyol being prepared, 2.79 parts of dihydromethyl propionic acids, molecular weight, which is added,
12.76 parts of polyglycerols, 6.38 parts of trimethylolpropanes, lasting stirring is warming up to 80 DEG C, during reaching 80 DEG C, is added
12.28 parts of isophorone diisocyanate, lasting heat preservation are reacted at 80 DEG C, until absorption peak of the NCO in IR spectrum disappears；So
After be cooled to 50 DEG C, 2.1 parts of triethylamines are added and neutralize, 55.13 parts of deionized waters are added after neutralization, keeps the temperature 1 hour, is cooled to 40
DEG C, obtain the modified poly- ammonia of water-dispersible polyester that solid content is 40.0%, hydroxyl value 142mgKOH/g, number-average molecular weight are 1800
Ester resin.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Emulsion has a small amount of precipitating；For storage after 6 months, appearance is visually emulsion under conditions of temperature is 40 DEG C, and there have to be a large amount of heavy
It forms sediment.
Initial stage partial size is 77nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 212nm.
Initial stage acid value is 29mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 36mgKOH/g.
Water-resistance property of coating is poor.
Comparative example 3
The preparation of 7th polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 32.15 parts of neopentyl glycols, 9.65 parts of diethylene glycols, 16.08 parts of 1,6- hexylene glycols, 75.56 parts of 1,6- adipic acids are added,
After being warming up to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour, continue to be warming up to 230 in 5 hours
℃.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；80 DEG C are subsequently cooled to hereinafter, obtaining acid value and being
1mgKOH/g, hydroxyl value 18mgKOH/g, the 7th polyester polyol that number-average molecular weight is 6150.
The preparation of water-dispersible polyester modified polyurethane resin
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, it is 4000 that 11.44 part of the 7th polyester polyol being prepared, 2.76 parts of dihydromethyl propionic acids, molecular weight, which is added,
10.09 parts of polyglycerols, 4.44 parts of trimethylolpropanes, lasting stirring is warming up to 80 DEG C, during reaching 80 DEG C, is added
10.77 parts of isophorone diisocyanate, lasting heat preservation are reacted at 80 DEG C, until absorption peak of the NCO in IR spectrum disappears；So
After be cooled to 50 DEG C, 2.08 parts of triethylamines are added and neutralize, 55.85 parts of deionized waters are added after neutralization, keeps the temperature 1 hour, is cooled to
40 DEG C, obtain the modified poly- ammonia of water-dispersible polyester that solid content is 40.0%, hydroxyl value 81mgKOH/g, number-average molecular weight are 4100
Ester resin.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Emulsion has a large amount of precipitatings；For storage after 6 months, appearance is visually layering, there is a large amount of precipitatings under conditions of temperature is 40 DEG C.
Initial stage partial size is 48nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 292nm.
Initial stage acid value is 29mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 36mgKOH/g.
Water-resistance property of coating is poor.
Comparative example 4
The preparation of 8th polyester polyol
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 19.5 parts of neopentyl glycols, 30.64 parts of diethylene glycols, 5.57 parts of 1,6- hexylene glycols, 73.26 parts of 1,6- adipic acids are added, rise
After temperature to 120 DEG C of dissolution of raw material, lasting stirring is warming up to 160 DEG C；After 160 DEG C are kept for 1 hour, continue to be warming up to 230 in 5 hours
℃.230 DEG C of heat preservation fixed time test acid values, until resin acid value is 1mgKOH/g；80 DEG C are subsequently cooled to hereinafter, obtaining acid value and being
1mgKOH/g, hydroxyl value 22mgKOH/g, the 8th polyester polyol that number-average molecular weight is 5100.
The preparation of water-dispersible polyester modified polyurethane resin
Hold to the reaction of reflux cooling device, thermometer, agitating device and nitrogen ingress pipe equipped with reaction water outlet
In device, 16.52 part of the 8th polyester polyol being prepared, 2.83 parts of dihydromethyl propionic acids, 7.87 parts of trihydroxy methyls third is added
Alkane, lasting stirring are warming up to 80 DEG C, during reaching 80 DEG C, 12.59 parts of isophorone diisocyanate are added, and lasting heat preservation exists
80 DEG C of reactions, until absorption peak of the NCO in IR spectrum disappears；Then 50 DEG C are cooled to, 2.13 parts of triethylamines are added and neutralize, in
With 55.07 parts of deionized waters of rear addition, 1 hour is kept the temperature, is cooled to 40 DEG C, obtains that solid content is 40.0%, hydroxyl value is
162mgKOH/g, the water-dispersible polyester modified polyurethane resin that number-average molecular weight is 1500.
Initial stage, appearance are visually translucent liquid；After 3 months, appearance is visually storage under conditions of temperature is 40 DEG C
Emulsion has a large amount of precipitatings；For storage after 6 months, appearance is visually layering, there is a large amount of precipitatings under conditions of temperature is 40 DEG C.
Initial stage partial size is 37nm, and storage is after 3 months under conditions of temperature is 40 DEG C, partial size 286nm.
Initial stage acid value is 29mgKOH/g；Storage is after 3 months under conditions of temperature is 40 DEG C, acid value 38mgKOH/g.
Water-resistance property of coating is preferable.
The judgment method of storage stability is as shown in table 1:
Table 1
| Hydrolyzable judgment criteria: acid value Bianization≤5 × |
| Stability Judgement standard: milkiness/precipitating/partial size Bianization≤100 × |
Water resistance is carried out according to the test of GB/T 1733-93 first method and evaluation method.
◎ (fabulous) ← → × (poor).
The mixed and modified polyurethane aqueous dispersion body of polyester polyethers prepared by the present invention have excellent storage stability, compared with
Good water resistance and resistance to hydrolyzable.The mixed and modified polyurethane aqueous dispersion body of polyester polyethers prepared by the present invention by
Introduce polyether Glycols in polyurethane aqueous dispersion body, reduce the hydrolysis rate of entire polyester segment, and by ionic effect and
Non-ionic space steric effect combines the dispersibility for further increasing polyurethane aqueous dispersion body, keeps the storage stability of resin big
Big enhancing.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, the embodiment that the present invention is enumerated can not give thoroughly all embodiments
To the greatest extent, all to belong to obvious changes or variations that technical solution of the present invention is extended out still in protection model of the invention
The column enclosed.All documents referred in the present invention are incorporated herein by reference, independent just as a document
It is cited as with reference to such.
Claims (5)
1. a kind of polyurethane aqueous dispersion body that polyester polyethers is mixed and modified, it is characterised in that: reaction raw materials are by following components system
At:
At least one number-average molecular weight is 500-3000, acid value is 5mgKOH/g or less, hydroxyl value 100-300mgKOH/g, is contained admittedly
In 95% or more polyester polyol；
At least one molecular weight is the polyether Glycols of 500-3000；
The polyether Glycols be molecular weight be 500 polypropylene glycol, molecular weight be 1000 polypropylene glycol, molecular weight 3000
Polypropylene glycol, molecular weight be 500 polyethylene glycol, molecular weight be 1000 polyethylene glycol, molecular weight be 3000 poly- second two
In the polytetramethylene glycol that polytetramethylene glycol that polytetramethylene glycol that alcohol, molecular weight are 1000, molecular weight are 3000, molecular weight are 2000 extremely
Few one kind；
At least one dihydric alcohol or trihydroxylic alcohol；
The dihydric alcohol is ethylene glycol, 1,2- propylene glycol, 1,3- propylene glycol, 1,3 butylene glycol, 1,4- butanediol, 2,3- fourth two
Alcohol, 1,6-HD, 2,5-HD, trimethyl hexylene glycol, diethylene glycol (DEG), triethylene glycol, A Hydrogenated Bisphenol A, 1,4- cyclohexanediol, 1,
At least one of 4- cyclohexanedimethanol, neopentyl glycol and/or trimethylpentanediol；
The trihydroxylic alcohol is at least one of trimethylolpropane, trimethylolethane, glycerine；
It is at least one containing can with the functional group of anionic and contain at least two functions that can be reacted with isocyanate group
The compound of group；
It is described containing can be with the functional group of anionic and containing at least two functional groups that can be reacted with isocyanate group
Compound is dihydromethyl propionic acid；
At least one non-ring type aliphatic diisocyanate or alicyclic diisocyanate；
The non-ring type aliphatic diisocyanate or alicyclic diisocyanate are isophorone diisocyanate, 1,4- fourth
Diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, bis- isocyanide of 1,4-
At least one of acidic group hexamethylene, double-(4- isocyanato cyclohexyl) methane, trimethyl -1,6- diisocyanate base hexane；
At least one ammoniate；
The ammoniate is triethylamine, ethylenediamine, ammonium hydroxide, triethanolamine, dimethylethanolamine, methylamine, ethamine, propylamine, 2-
Methyl-2-amino propyl alcohol, dimethylisopro panolamine, methyl diethanolamine, ethyl diisopropylamine, in diethyl ethylene diamine at least
It is a kind of；
And at least one solvent；
The solvent is water.
2. the mixed and modified polyurethane aqueous dispersion body of polyester polyethers according to claim 1, it is characterised in that: reaction raw materials
It is made of the component of following parts by weight:
3. the mixed and modified polyurethane aqueous dispersion body of polyester polyethers according to claim 1 or 2, it is characterised in that: described
The mixed and modified polyurethane aqueous dispersion body number-average molecular weight of polyester polyethers is 1000 or more；Hydroxyl value is between 0~300；Solid content
It is 40.0%.
4. the mixed and modified polyurethane aqueous dispersion body of polyester polyethers according to claim 3, it is characterised in that: the polyester
The mixed and modified polyurethane aqueous dispersion body number-average molecular weight of polyethers is 1000~5000；Hydroxyl value is 80~180.
5. a kind of preparation method of the mixed and modified polyurethane aqueous dispersion body of any polyester polyethers of Claims 1-4,
It is characterized in that: the following steps are included:
By at least one number-average molecular weight be 500-3000, acid value is 5mgKOH/g or less, hydroxyl value 100-300mgKOH/g, is consolidated
It is contained in 95% or more polyester polyol, the polyether Glycols that at least one molecular weight is 500-3000, at least one dihydric alcohol
Or trihydroxylic alcohol and at least one anti-containing that can be carried out with isocyanate group with the functional group of anionic and containing at least two
Heating is mixed in the compound for the functional group answered, and at least one non-ring type aliphatic diisocyanate or alicyclic ring is then added
(cyclo) aliphatic diisocyanates heat preservation is added at least one ammoniate and neutralizes after cooling, be eventually adding at least one solvent heat preservation, cooling
The mixed and modified polyurethane aqueous dispersion body of the polyester polyethers is obtained afterwards.
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| CN1817934A (en) * | 2006-03-10 | 2006-08-16 | 广东天银化工实业有限公司 | Self-crosslinked oxidation and high-efficient dispersion with water polyurethane and production thereof |
| CN101265318A (en) * | 2008-05-15 | 2008-09-17 | 海聚高分子材料科技（广州）有限公司 | High-performance water-based polyurethane dispersoid and application thereof |
| CN103265708A (en) * | 2013-04-24 | 2013-08-28 | 高松文 | Modified polyester polyol and preparation method and application thereof |
| CN103694880A (en) * | 2013-12-30 | 2014-04-02 | 浙江荣泰科技企业有限公司 | Preparation method of waterborne one-component polyurethane paint with low viscosity |
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| US20050288431A1 (en) * | 2004-06-25 | 2005-12-29 | Gindin Lyubov K | Polyurethane dispersion prepared from a high acid functional polyester |
| CN102977324A (en) * | 2012-11-06 | 2013-03-20 | 青岛文创科技有限公司 | Method for preparing aqueous polyurethane film-forming agent |
| TWI496794B (en) * | 2014-05-30 | 2015-08-21 | Champward Chemical Ind Co Ltd | Preparing method for aqueous emulsion via water dispersible polyurethane grafted acrylate copolymerization |
| CN104262572B (en) * | 2014-09-19 | 2018-04-10 | 上海蓝欧化工科技有限公司 | The preparation method of polyurethane prepolymer and large arch dam waterborne polyurethane resin |
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| CN1817934A (en) * | 2006-03-10 | 2006-08-16 | 广东天银化工实业有限公司 | Self-crosslinked oxidation and high-efficient dispersion with water polyurethane and production thereof |
| CN101265318A (en) * | 2008-05-15 | 2008-09-17 | 海聚高分子材料科技（广州）有限公司 | High-performance water-based polyurethane dispersoid and application thereof |
| CN103265708A (en) * | 2013-04-24 | 2013-08-28 | 高松文 | Modified polyester polyol and preparation method and application thereof |
| CN103694880A (en) * | 2013-12-30 | 2014-04-02 | 浙江荣泰科技企业有限公司 | Preparation method of waterborne one-component polyurethane paint with low viscosity |
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