CN107417871A - Waterborne polyurethane glass Protection glue and preparation method thereof - Google Patents

Waterborne polyurethane glass Protection glue and preparation method thereof Download PDF

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Publication number
CN107417871A
CN107417871A CN201710574941.XA CN201710574941A CN107417871A CN 107417871 A CN107417871 A CN 107417871A CN 201710574941 A CN201710574941 A CN 201710574941A CN 107417871 A CN107417871 A CN 107417871A
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China
Prior art keywords
preparation
protection glue
waterborne polyurethane
polyurethane prepolymer
glass
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Pending
Application number
CN201710574941.XA
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Chinese (zh)
Inventor
陶灿
徐杰
王继印
戎佳萌
贾娟
潘轸
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HEFEI SIJINGQI CHEMICAL MATERIALS Co Ltd
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HEFEI SIJINGQI CHEMICAL MATERIALS Co Ltd
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Priority to CN201710574941.XA priority Critical patent/CN107417871A/en
Publication of CN107417871A publication Critical patent/CN107417871A/en
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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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
    • C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
    • C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
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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
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    • C—CHEMISTRY; METALLURGY
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    • 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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    • C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
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    • C08G18/44—Polycarbonates
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    • 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
    • C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
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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
    • C08G18/65—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
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
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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
    • C08G18/65—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
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    • C08G18/6644—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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    • C08K5/00—Use of organic ingredients
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    • C08K5/13—Phenols; Phenolates
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
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  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention discloses a kind of waterborne polyurethane glass Protection glue and preparation method thereof, and the Protection glue, which is adopted, to be prepared by the following steps：Macromolecule dihydric alcohol, diisocyanate, antioxidant are reacted into 2~4h in 90~100 DEG C, obtain polyurethane prepolymer a1；To polyurethane prepolymer a1Middle addition small molecule chain extender, hydrophilic chain extender, solvent, catalyst, react 4~7h in 60~80 DEG C, obtain Waterborne Polyurethane Prepolymer a2；Hydrotropism's base polyurethane prepolymer for use as a2Middle addition solvent, salt forming agent is added under high speed shear, stir and add 3~5 times of water-reducible silane couplers after adding 2~5min of water high speed dispersion and emulsion after 1~5min, stir after 20~40min that desolvation produces under vacuo.The glass protection glue that the present invention is prepared has excellent heat resistance; preferable hardness can be kept by not softening at 100 DEG C; there is excellent adhesive force to glass; and after glass protection glue is coated on glass; it can reach the effect that can not cut glue; it can also ensure that glass keeps full wafer to be trickled down without fragment after broken, so as to ensure security.

Description

Waterborne polyurethane glass Protection glue and preparation method thereof
Technical field
The present invention relates to glass protection glue field, more particularly to a kind of waterborne polyurethane glass Protection glue and its preparation side Method.
Background technology
It is well known that present building trade door and window generally uses simple glass.From security performance, commonly Impact caused by glass can not keep out the unknown hazards such as shock, blast, earthquake, cause glass breaking, splash, glass breaking Many potential safety hazards can be brought.In order to solve the above problems, by surface of ordinary glass coat Protection glue, this Protection glue by Substrate layer and formed coated in the gluing oxidant layer on the substrate layer, substrate layer uses high molecular polymer base film.Protection glue Although the potential safety hazard that glass breaking is brought can be solved to a certain extent, it there is also some problems, such as Protection glue hardness It is low, to the poor adhesive force of glass, cutting performance difference etc..
The content of the invention
In view of this, it is an object of the invention to provide a kind of waterborne polyurethane glass Protection glue and preparation method thereof, hardness Height is big to the adhesive force of glass.
To achieve these goals, the present invention provides following technical scheme：
A kind of preparation method of waterborne polyurethane glass Protection glue, comprises the following steps：
A) macromolecule dihydric alcohol, diisocyanate, antioxidant are reacted into 2~4h in 90~100 DEG C, obtains polyurethane prepolymer Thing a1；
B) the polyurethane prepolymer a obtained to step a)1Middle addition small molecule chain extender, hydrophilic chain extender, solvent, catalysis Agent, 4~7h is reacted in 60~80 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition solvent, salt forming agent is added under high speed shear, is stirred Mix to add after 1~5min after 2~5min of water high speed dispersion and emulsion and add 3~5 times of water-reducible silane couplers, stirring 20~ 40min, then desolvation under vacuo, produces waterborne polyurethane glass Protection glue.
Preferably, the macromolecular polyol is selected from phthalic anhydride polyester diol, PCDL, polycaprolactone binary One or more in alcohol, PolyTHF dihydric alcohol.
Preferably, the diisocyanate be IPDI, 1,6- hexamethylene diisocyanates or 4, 4'- dicyclohexyl methyl hydride diisocyanates.
Preferably, the antioxidant is Hinered phenols, hindered amines or salicylate kind antioxidant.
Preferably, the small molecule chain extender be 2- hydroxyls -1,3 propane diols, 3- methyl isophthalic acids, 5- pentanediols, neopentyl glycol Or TMPD；
The hydrophilic chain extender is dihydromethyl propionic acid or dimethylolpropionic acid.
Preferably, the catalyst is selected from stannous octoate, tin dilaurate normal-butyl tin, organic Bi salt catalysts, organic Zn One or more in salt catalyst；
Preferably, the silane coupler is N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane.
Preferably, the salt forming agent be triethylamine, N, N dimethyl monoethanolamine, sodium hydroxide or potassium hydroxide.
Preferably, in step b) and step c), the solvent is independently selected from acetone or butanone.
Present invention also offers a kind of waterborne polyurethane glass Protection glue, by the system of above-mentioned waterborne polyurethane glass Protection glue Preparation Method is made.
The invention provides a kind of waterborne polyurethane glass Protection glue and preparation method thereof, the polyurethane glass Protection glue is adopted It is prepared by the following steps：Macromolecule dihydric alcohol, diisocyanate, antioxidant are reacted into 2~4h in 90~100 DEG C, obtain poly- ammonia Ester prepolymer a1；The polyurethane prepolymer a obtained to step a)1Middle addition small molecule chain extender, hydrophilic chain extender, solvent, catalysis Agent, 4~7h is reacted in 60~80 DEG C, obtains Waterborne Polyurethane Prepolymer a2；The Waterborne Polyurethane Prepolymer a obtained to step b)2 Middle addition solvent, salt forming agent is added under high speed shear, stir and add 3 after adding 2~5min of water high speed dispersion and emulsion after 1~5min ~5 times of water-reducible silane couplers, 20~40min is stirred, then desolvation under vacuo, produced.Present invention process letter It is single, it is easily controlled in preparation process without special condition and equipment, preparation technology, the waterborne polyurethane glass being prepared is protected Shield glue has excellent heat resistance, and preferable hardness can be kept by not softening at 100 DEG C, have excellent adhesive force to glass, and After glass protection glue is coated on glass, the effect that can not cut glue can reach, additionally it is possible to ensure that glass keeps whole after broken Piece is trickled down without fragment, so as to ensure security.
Embodiment
In order to further appreciate that the present invention, the preferred embodiments of the invention are described with reference to embodiment, but It is it should be appreciated that these descriptions are simply for further explanation the features and advantages of the present invention rather than to patent requirements of the present invention Limitation.
The invention provides a kind of preparation method of waterborne polyurethane glass Protection glue, comprise the following steps：
A) macromolecule dihydric alcohol, diisocyanate, antioxidant are reacted into 2~4h in 90~100 DEG C, obtains polyurethane prepolymer Thing a1；
B) the polyurethane prepolymer a obtained to step a)1Middle addition small molecule chain extender, hydrophilic chain extender, solvent, catalysis Agent, 4~7h is reacted in 60~80 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition solvent, salt forming agent is added under high speed shear, is stirred Mix to add after 1~5min after 2~5min of water high speed dispersion and emulsion and add 3~5 times of water-reducible silane couplers, stirring 20~ 40min, then desolvation under vacuo, produces waterborne polyurethane glass Protection glue.
In above-mentioned technical proposal, technique is simple, is easily controlled without special condition and equipment, preparation technology in preparation process System, the waterborne polyurethane glass Protection glue being prepared have excellent heat resistance, and not softening at 100 DEG C can keep preferably hard Degree, has excellent adhesive force to glass, and glass protection glue can reach the effect that can not cut glue coated in after on glass Fruit, additionally it is possible to ensure that glass keeps full wafer to be trickled down without fragment after broken, so as to ensure security.
Macromolecule dihydric alcohol, diisocyanate, antioxidant are reacted into 2~4h in 90~100 DEG C, obtain polyurethane prepolymer a1。
In an embodiment of the present invention, macromolecule dihydric alcohol is selected from phthalic anhydride polyester diol, PCDL, gathers oneself One or more in lactone dihydric alcohol, PolyTHF dihydric alcohol；In other embodiments, relative point of macromolecule dihydric alcohol Son amount is 1000~3000；In a further embodiment, the relative molecular weight of macromolecule dihydric alcohol is 2000.
In an embodiment of the present invention, diisocyanate is IPDI, the isocyanide of 1,6- hexa-methylenes two Acid esters or 4,4'- dicyclohexyl methyl hydride diisocyanates.
In an embodiment of the present invention, antioxidant is Hinered phenols antioxidant, suffocated amine antioxidant or salicylic acid esters Antioxidant；In other embodiments, Hinered phenols antioxidant 2,6- three-levels butyl -4- methylphenols or double (3,5- three-level fourths Base -4- hydroxy phenyls) thioether；Suffocated amine antioxidant is double (2,2,6,6- tetramethyl -4- hydroxy piperidines) esters of decanedioic acid；It is described Salicylate kind antioxidant is the own ester of septichen.
Obtain polyurethane prepolymer a1Afterwards, small molecule chain extender, hydrophilic chain extender, solvent, catalyst are added thereto, in 60~80 DEG C of 3~6h of reaction, obtain Waterborne Polyurethane Prepolymer a2。
In an embodiment of the present invention, small molecule chain extender be 2- hydroxyls -1,3 propane diols, 3- methyl isophthalic acids, 5- pentanediols, Neopentyl glycol or TMPD；In other embodiments, small molecule chain extender is 2- hydroxyl -1,3 propane diols.
In an embodiment of the present invention, hydrophilic chain extender is dihydromethyl propionic acid or dimethylolpropionic acid；In other implementations In example, hydrophilic chain extender is dihydromethyl propionic acid.
In an embodiment of the present invention, catalyst is selected from stannous octoate, tin dilaurate normal-butyl tin, the catalysis of organic Bi salt One or more in agent, organic Zn salt catalysts；In other embodiments, organic Bi salt catalysts are isooctyl acid bismuth, bay Jiao acid bismuth or bismuth neodecanoate；Organic Zn salt catalysts are zinc methide or diethyl zinc.
In an embodiment of the present invention, in step b), solvent is acetone or butanone.
Obtained Waterborne Polyurethane Prepolymer a2Afterwards, solvent is added thereto, and salt forming agent, stirring 1 are added under high speed shear 3~5 times of water-reducible silane couplers of addition after 2~5min of addition water high speed dispersion and emulsion after~5min, stirring 20~ 40min, then desolvation under vacuo, produces aqueous polyurethane.
In an embodiment of the present invention, solvent is same as above, will not be repeated here.
In an embodiment of the present invention, salt forming agent be triethylamine, N, N dimethyl monoethanolamine, sodium hydroxide or potassium hydroxide； In other embodiments, salt forming agent is triethylamine.
In an embodiment of the present invention, macromolecule dihydric alcohol, diisocyanate, antioxidant, small molecule chain extender, hydrophilic expansion Chain agent, catalyst, salt forming agent, the mass ratio of water and silane coupler are (40~60)：(20~50)：(0.5~2)：(2~ 10)：(1~3)：(0.1~0.3)：(2~8)：(80~100)：(0.8~5).
In an embodiment of the present invention, the mass ratio of solvent and diisocyanate is in solvent, step c) in step b) (1.8~2.4)：(0.8~2.3)：1.
Present invention also offers a kind of waterborne polyurethane glass Protection glue, it is made by above-mentioned preparation method.
In above-mentioned technical proposal, technique is simple, is easily controlled without special condition and equipment, preparation technology in preparation process System, the waterborne polyurethane glass Protection glue being prepared have excellent heat resistance, and not softening at 100 DEG C can keep preferably hard Degree, has excellent adhesive force to glass, and glass protection glue can reach the effect that can not cut glue coated in after on glass Fruit.
Illustrate the present invention, with reference to embodiment to waterborne polyurethane glass Protection glue provided by the invention and its preparation side Method is described in detail, but they can not be interpreted as into limiting the scope of the present invention.
Embodiment 1
A) it is 2000 phthalic anhydride polyester diol, 1,6- hexamethylene diisocyanates, 2,6- three-levels by relative molecular weight Butyl -4- methylphenols react 4h in 90 DEG C, obtain polyurethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1The middle propane diols of addition 2- hydroxyls -1,3, dihydromethyl propionic acid, third Ketone, stannous octoate, 7h is reacted in 60 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition acetone, triethylamine is added under high speed shear, is stirred 4 times of water-reducible N- (β-aminoethyl)-γ-aminopropyltriethoxy diformazans of addition after water high speed dispersion and emulsion 2min are added after mixing 5min TMOS, 40min is stirred, then desolvation under vacuo, produce waterborne polyurethane glass Protection glue；
Phthalic anhydride polyester diol, 1,6- hexamethylene diisocyanates, 2,6- three-level butyl -4- methylphenols, 2- hydroxyls - 1,3 propane diols, dihydromethyl propionic acid, stannous octoate, triethylamine, water and N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxy The mass ratio of silane is 40：20：0.5：2：1：0.1：2：80：0.8.
In an embodiment of the present invention, acetone and 1,6- hexamethylene diisocyanate in acetone, step c) in step b) Mass ratio be 1.8：0.8：1.
Embodiment 2
A) PCDL, 4,4'- dicyclohexyl methyl hydride diisocyanates, 2,6- for being 2000 by relative molecular weight Three-level butyl -4- methylphenols pipe reacts 2h in 100 DEG C, obtains polyurethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1Middle addition 3- methyl isophthalic acids, 5- pentanediols, dimethylolpropionic acid, fourth Ketone, tin dilaurate normal-butyl tin, 4h is reacted in 80 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition acetone, triethylamine is added under high speed shear, is stirred 4 times of water-reducible N- (β-aminoethyl)-γ-aminopropyltriethoxy diformazans of addition after water high speed dispersion and emulsion 3min are added after mixing 3min TMOS, 30min is stirred, then desolvation under vacuo, produce waterborne polyurethane glass Protection glue；
PCDL, 4,4'- dicyclohexyl methyl hydride diisocyanates, 2,6- three-level butyl -4- methylphenols, 3- Methyl isophthalic acid, 5- pentanediols, dimethylolpropionic acid, tin dilaurate normal-butyl tin, triethylamine, water and N- (β-aminoethyl)-γ-ammonia third The mass ratio of ylmethyl dimethoxysilane is 60：50：2：10：3：0.3：8：100：5.
In an embodiment of the present invention, acetone and the isocyanide of 4,4'- dicyclohexyl methyl hydride two in butanone, step c) in step b) The mass ratio of acid esters is 2.4：2.3：1.
Embodiment 3
A) the PolyTHF binary for being 2000 by phthalic anhydride polyester diol that relative molecular weight is 1000, relative molecular weight Alcohol, 1,6- hexamethylene diisocyanates, double (3,5- three-level butyl -4- hydroxy phenyls) thioethers react 3h in 100 DEG C, are gathered Urethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1The middle propane diols of addition 2- hydroxyls -1,3, dihydromethyl propionic acid, third Ketone, isooctyl acid bismuth, zinc methide, 5h is reacted in 70 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition butanone, triethylamine is added under high speed shear, is stirred 4 times of water-reducible N- (β-aminoethyl)-γ-aminopropyltriethoxy diformazans of addition after water high speed dispersion and emulsion 4min are added after mixing 4min TMOS, 30min is stirred, then desolvation under vacuo, produce waterborne polyurethane glass Protection glue；
Phthalic anhydride polyester diol, PolyTHF dihydric alcohol, 1,6- hexamethylene diisocyanates, double (3,5- three-level fourths Base -4- hydroxy phenyls) thioether, the propane diols of 2- hydroxyls -1,3, dihydromethyl propionic acid, isooctyl acid bismuth, zinc methide, triethylamine, water Mass ratio with N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane is 22.5：22.5：40：1.5：8：1.5： 0.12：0.12：3：85：4.
In an embodiment of the present invention, butanone and 1,6- hexamethylene diisocyanate in acetone, step c) in step b) Mass ratio be 2：2：1.
Embodiment 4
A) it is 1000 polycaprolactone diols, IPDI, septichen by relative molecular weight Own ester reacts 3h in 90 DEG C, obtains polyurethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1Middle addition neopentyl glycol, dimethylolpropionic acid I, butanone, diethyl Base zinc, 6h is reacted in 80 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition butanone, potassium hydroxide is added under high speed shear, 4 times of water-reducible N- (β-aminoethyl)-γ-aminopropyltriethoxies two of addition after water high speed dispersion and emulsion 4min are added after stirring 3min Methoxy silane, 30min is stirred, then desolvation under vacuo, produce waterborne polyurethane glass Protection glue；
Phthalic anhydride polyester diol, 1,6- hexamethylene diisocyanates, double (3,5- three-level butyl -4- hydroxy phenyls) sulphur Ether, the propane diols of 2- hydroxyls -1,3, dihydromethyl propionic acid, isooctyl acid bismuth, zinc methide, triethylamine, water and N- (β-aminoethyl) - The mass ratio of γ-aminopropyltriethoxy dimethoxysilane is 50：30：2：6：2：0.1：0.1：4：90：3.
In an embodiment of the present invention, the matter of butanone and IPDI in butanone, step c) in step b) Amount is than being 2.1：1.5：1.
Embodiment 5
A) the phthalic anhydride polyester binary for being 2000 by PolyTHF dihydric alcohol that relative molecular weight is 2000, relative molecular weight Alcohol, IPDI, 2,6- three-levels butyl -4- methylphenols react 3h in 100 DEG C, obtain polyurethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1It is middle addition TMPD, dihydromethyl propionic acid, acetone, new Capric acid bismuth, 5h is reacted in 70 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition acetone, sodium hydroxide is added under high speed shear, 5 times of water-reducible N- (β-aminoethyl)-γ-aminopropyltriethoxies two of addition after water high speed dispersion and emulsion 5min are added after stirring 1min Methoxy silane, 20min is stirred, then desolvation under vacuo, produce waterborne polyurethane glass Protection glue；
PolyTHF dihydric alcohol, phthalic anhydride polyester diol, IPDI, 2,6- three-level butyl -4- first Base phenol, TMPD, dihydromethyl propionic acid, bismuth neodecanoate, sodium hydroxide, water and N- (β-aminoethyl)-γ-aminopropyl The mass ratio of methyl dimethoxysilane is 25：30：45：1.2：4：2.5：0.25：6：95：2.
In an embodiment of the present invention, the matter of acetone and IPDI in acetone, step c) in step b) Amount is than being 2.3：1：1.
Embodiment 6
A) the PolyTHF binary for being 2000 by polycaprolactone diols that relative molecular weight is 3000, relative molecular weight Double (2,2,6, the 6- tetramethyl -4- hydroxy piperidines) esters of alcohol, IPDI, decanedioic acid react 4h in 90 DEG C, obtain Polyurethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1Middle addition neopentyl glycol, dihydromethyl propionic acid, acetone, Yue Gui Jiao Acid, 6h is reacted in 80 DEG C, obtains Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition butanone, N, N dimethyl are added under high speed shear Monoethanolamine, 3 times of water-reducible N- (β-aminoethyl)-γ-ammonia third of addition after water high speed dispersion and emulsion 5min are added after stirring 5min Ylmethyl dimethoxysilane, 40min is stirred, then desolvation under vacuo, produce waterborne polyurethane glass Protection glue；
Polycaprolactone diols, PolyTHF dihydric alcohol, IPDI, the double (2,2,6,6- of decanedioic acid Tetramethyl -4- hydroxy piperidines) ester, neopentyl glycol, dihydromethyl propionic acid, Yue Gui Jiao acid, N, N dimethyl monoethanolamine, water and N- (β - Aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane mass ratio be 25：25：35：1.25：3：2：0.20：5：90：2.9.
In an embodiment of the present invention, the matter of acetone and IPDI in acetone, step c) in step b) Amount is than being 2.1：1.5：1.
The glossiness of waterborne polyurethane glass Protection glue, transparency, hardness, adhesive force made from embodiment 1~6 are measured, It the results are shown in Table 1.
The experimental result of the embodiment 1~6 of table 1
Detailed Jie has been carried out to a kind of waterborne polyurethane glass Protection glue provided by the invention and preparation method thereof above Continue, specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only It is the method and its core concept for being used to help understand the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improve and repaiied Decorations are also fallen into the protection domain of the claims in the present invention.

Claims (10)

1. a kind of preparation method of waterborne polyurethane glass Protection glue, it is characterised in that comprise the following steps：
A) macromolecule dihydric alcohol, diisocyanate, antioxidant are reacted into 2~4h in 90~100 DEG C, obtains polyurethane prepolymer a1；
B) the polyurethane prepolymer a obtained to step a)1Middle addition small molecule chain extender, hydrophilic chain extender, solvent, catalyst, in 60~80 DEG C of 4~7h of reaction, obtain Waterborne Polyurethane Prepolymer a2；
C) the Waterborne Polyurethane Prepolymer a obtained to step b)2Middle addition solvent, adds salt forming agent under high speed shear, and stirring 1~ 3~5 times of water-reducible silane couplers are added after 2~5min of water high speed dispersion and emulsion is added after 5min, stir 20~40min, Then desolvation under vacuo, produces waterborne polyurethane glass Protection glue.
2. preparation method as claimed in claim 1, it is characterised in that the macromolecular polyol is selected from phthalic anhydride polyester binary One or more in alcohol, PCDL, polycaprolactone diols, PolyTHF dihydric alcohol.
3. preparation method as claimed in claim 1, it is characterised in that the diisocyanate is isophorone diisocyanate Ester, 1,6- hexamethylene diisocyanates or 4,4'- dicyclohexyl methyl hydride diisocyanates.
4. preparation method as claimed in claim 1, it is characterised in that the antioxidant is Hinered phenols, hindered amines or water Poplar acid esters kind antioxidant.
5. preparation method as claimed in claim 1, it is characterised in that the small molecule chain extender is 2- hydroxyls -1,3 the third two Alcohol, 3- methyl isophthalic acids, 5- pentanediols, neopentyl glycol or TMPD；
The hydrophilic chain extender is dihydromethyl propionic acid or dimethylolpropionic acid.
6. preparation method as claimed in claim 1, it is characterised in that the catalyst is being selected from stannous octoate, tin dilaurate just One or more in butyl tin, organic Bi salt catalysts, organic Zn salt catalysts.
7. preparation method as claimed in claim 1, it is characterised in that the silane coupler is N- (β-aminoethyl)-γ-ammonia Hydroxypropyl methyl dimethoxysilane.
8. preparation method as claimed in claim 1, it is characterised in that the salt forming agent is triethylamine, N, N dimethyl ethanol Amine, sodium hydroxide or potassium hydroxide.
9. preparation method as claimed in claim 1, it is characterised in that in step b) and step c), the solvent is independently Selected from acetone or butanone.
10. a kind of waterborne polyurethane glass Protection glue, it is characterised in that by any one of claim 1~9 aqueous polyurethane The preparation method of glass protection glue is made.
CN201710574941.XA 2017-07-14 2017-07-14 Waterborne polyurethane glass Protection glue and preparation method thereof Pending CN107417871A (en)

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Publication number Priority date Publication date Assignee Title
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Publication number Priority date Publication date Assignee Title
CN101020808A (en) * 2007-03-15 2007-08-22 黄山市圣雷特化学有限公司 Prepn of water-base polyurethane adhesive
CN101186798A (en) * 2007-11-08 2008-05-28 华明扬 Method for preparing water polyurethane siloxane ventilating coating adhesive used for automobiles and shoes
US20100152374A1 (en) * 2008-12-12 2010-06-17 Industrial Technology Research Institute Flame-retardant waterborne polyurethane dispersion
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Application publication date: 20171201