CN109321077A - A kind of damping paint water polyurethane/acrylic ester composite emulsion preparation method - Google Patents
A kind of damping paint water polyurethane/acrylic ester composite emulsion preparation method Download PDFInfo
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- CN109321077A CN109321077A CN201811129264.1A CN201811129264A CN109321077A CN 109321077 A CN109321077 A CN 109321077A CN 201811129264 A CN201811129264 A CN 201811129264A CN 109321077 A CN109321077 A CN 109321077A
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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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
- C08F283/008—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00 on to unsaturated polymers
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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
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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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
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
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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
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- 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
- C08G2350/00—Acoustic or vibration damping material
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
A kind of aqueous coating polyurethane/acrylic ester composite emulsion, belong to technical field of coatings, which is made of polyether polyol, polyisocyanates monomer, castor oil, small molecule chain extender, hydrophilic chain extender, salt forming agent, end-capping reagent, acrylate monomer etc..The present invention also provides a kind of water polyurethane/acrylic ester composite emulsion preparation methods, polyether polyol, polyisocyanates monomer, castor oil and hydrophilic chain extender are gradually polymerize by this method according to a certain percentage, add blocking agent, prepare the Anionic Water-borne Polyurethane Emulsion of sealing end, acrylic ester monomer is added afterwards to continue to polymerize with styrene, forms core-shell type aqueous polyurethane/acrylate composite emulsion.After wide temperature range damping aqueous coating polyaminoester emulsion of the present invention covers with paint, lacquer, colour wash, etc. film forming, the effective temperature range in δ >=0.3 tan can be greater than 160 DEG C.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of wide temperature range damping aqueous coating polyurethane/acrylic acid
Ester composite emulsion preparation method.
Background technique
With the rapid development of national economy and a wide range of use of high speed machine, the pollution of noise is also got worse.It makes an uproar
Public hazards one of of the sound as society, by government and national attention.The material of damping noise reduction is also therefore increasingly developed.Resistance
Damping material is a kind of shock attenuation material, in daily life using very extensive.
It is with the improvement of people ' s living standards and environmentally friendly to body nocuousness since the pollution of traditional solvent-borne damping material is big
Awareness of consciousness, the pressure of environmental protection force some traditional solvent based products gradually to fade out market instead aqueous
Damping material.Water polyurethane/acrylic ester composite emulsion is at low cost, and pollution is small, highly beneficial to the protection of environment.
Publication No. CN 101508762A discloses a kind of preparation method of polyester type polyurethane damping material, this method
Lotion damping temperature domain obtained is narrow, using being restricted.Publication No. CN 105646826A discloses rodlike ZnO doping ester ether
It is copolymerized the preparation method of polyurethane damping material, material therefor is expensive, complex process, and industrialization difficulty increases.
Summary of the invention
The present invention provides a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion, which covers with paint, lacquer, colour wash, etc.
Film forming has outstanding damping capacity.
The present invention provides a kind of wide temperature range damping aqueous coating polyaminoester emulsion
20~100 parts of polyether polyol
20~70 parts of polyisocyanates monomer
3~30 parts of castor oil
2~8 parts of small molecule chain extender
4~12 parts of hydrophilic chain extender
3~9 parts of salt forming agent
4~15 parts of end-capping reagent
20~100 parts of acrylic monomers
Preferably, the polyether polyol be selected from polyether polyol be selected from Polyoxyethylene glycol, polyoxypropyleneglycol,
One or more of propylene glycol polyethers, polypropylene oxide triol and polytetrahydrofuran diol.The polyether polyol number
Average molecular weight ranges preferably from 1000~3000.
Preferably, the polyisocyanates monomer is selected from toluene di-isocyanate(TDI), diphenylmethane diisocyanate
Ester, dicyclohexyl methyl hydride diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate and durol two
One or more of methyl diisocyanate.
Preferably, the small molecule chain extender is selected from ethylene glycol, 1,4-butanediol, propylene glycol, 2- methyl-1,3- third
One or more of glycol and diglycol.
Preferably, the hydrophilic chain extender dihydromethyl propionic acid, half rouge of dihydroxy, ethylenediamine base ethanesulfonic acid sodium, Isosorbide-5-Nitrae
One or more of butanediol -2- sodium sulfonate, diethylenetriamine and methyl diethanolamine.
Preferably, the end-capping reagent is selected from one or more of hydroxyethyl methacrylate, hydroxy-ethyl acrylate.
Preferably, the salt forming agent is selected from one or more of triethylamine, sodium hydroxide, ammonium hydroxide.
Preferably, the acrylate monomer is methyl methacrylate, ethyl methacrylate, methacrylic acid
One or more of butyl ester, n-butyl acrylate.
The present invention also provides a kind of low temperature resistant damping paint aqueous polyurethane/acrylate emulsion preparation methods, special
Sign is, includes the following:
Step 1: polyether polyol, isocyanate-monomer, castor oil, small molecule chain extender, hydrophilic expansion are added in four-hole boiling flask
Chain agent and catalyst react 2~3h under the conditions of 70~90 DEG C, and it is aqueous that addition 1~1.5h of blocking agent reaction obtains end-sealed type
Polyurethane.
System: being cooled to rapidly 30~50 DEG C by step 2, and salt forming agent is added and reacts 10~20min, be then added go from
30~50min of sub- water high-speed stirred, obtains aqueous polyurethane emulsion.
Step 3: being warming up to 65~75 DEG C, and emulsifier, initiator is added and acrylic ester monomer is added dropwise, and reaction 4~
6h obtains water polyurethane/acrylic ester composite emulsion.
Preferably, the catalyst is selected from stannous octoate, dibutyl tin dilaurate, triethanolamine and dimethyl
One or more of ethanol amine.Catalyst amount according to parts by weight, preferably 0.01~0.1 part.
Described in step 1 of the present invention, after polyether polyol is added in four-hole boiling flask, it is preferred that at 80~120 DEG C
Under the conditions of 1~2h of vacuum dehydration, isocyanate-monomer, castor oil, small molecule chain extender, hydrophilic chain extender and catalysis is added
Agent is gradually warming up to 70~90 DEG C of 2~3h of reaction, and 1~1.5h of blocking agent reaction is then added and obtains waterborne blocked polyurethane.
Described in step 2 of the present invention, system is cooled to rapidly to 30~50 DEG C, 75~95ml of acetone is added, with acetone-
Di-n-butylamine method measurement-nco value reaches theoretical value, and salt forming agent is added and reacts 10~20min, deionized water high-speed stirring is then added
30~50min is mixed, cold emulsifiable obtains aqueous polyurethane emulsion.
Described in step 3 of the present invention, system is brought rapidly up to 50~70 DEG C, emulsifier is added and reacts 20~40min,
Then initiator, acrylic monomers 4~6h of reaction is added, obtains water polyurethane/acrylic ester composite emulsion.
Beneficial effects of the present invention
The present invention provides a kind of aqueous polyurethane/acrylate lotion, and contained organic solvent is few, is mainly that dispersion is situated between with water
Matter, VOC content is low, safety and environmental protection.
The present invention provides a kind of low temperature resistant damping paint water polyurethane/acrylic ester composite emulsion, which passes through
Special formula design after covering with paint, lacquer, colour wash, etc. film forming, overcomes polyurethane material high temperature glutinous the shortcomings that flowing, effective damping (δ > 0.3 tan) temperature
Domain is greater than 160 DEG C.
The present invention also provides a kind of low temperature resistant damping paint water polyurethane/acrylic ester composite emulsion preparation methods.
Detailed description of the invention
Fig. 1 damps multiple emulsion institute glue for a kind of wide temperature range aqueous polyurethane/acrylate prepared by present example 1
The infrared spectrogram of film；
Fig. 2 is that a kind of dynamic mechanical test of made glue film of aqueous polyurethane/acrylate lotion prepared by present example 1 is bent
Line；
Fig. 3 is that a kind of dynamic mechanical test of made glue film of aqueous polyurethane/acrylate lotion prepared by present example 2 is bent
Line.
Specific embodiment
To further appreciate that the present invention, preferred embodiment of the invention is described With reference to embodiment, but
It should be appreciated that these descriptions are only further explanation advantages and features of the invention, not to the limitation of patent requirements.
Embodiment 1
Equipped with agitating device, condensing unit, thermometer and be connected with nitrogen protection four-hole boiling flask in, be added polytetrahydrofuran two
Then isophorone diisocyanate is added in alcohol (number-average molecular weight 2000) 40g, vacuum dehydration 1.5h under the conditions of 100 DEG C
26g, castor oil 4g, small molecule chain extender 1,4-butanediol 3g, hydrophilic chain extender dihydromethyl propionic acid 6g and catalyst dibutyltin
System is warming up to 75 DEG C of reaction 2h, end-capping reagent hydroxyethyl methacrylate 5g is added, reacts 1h by dilaurylate 0.1g.
System is cooled to rapidly to 30 DEG C, acetone 70ml is added to reduce viscosity, reaches theoretical value to system-nco value, adds
Enter salt forming agent triethylamine 4g, then the reaction was continued 10min is added deionized water, agitating device revolution is adjusted to 1000rad/
Min, cold emulsifiable 30min obtain aqueous polyurethane emulsion.
System is brought rapidly up to 60 DEG C, emulsifier, initiator is added, styrene 8g, butyl acrylate 20g is added dropwise, instead
4.5h is answered, water polyurethane/acrylic ester composite emulsion is obtained.
Fig. 1 is a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion prepared by present example 1
The infrared spectrogram of made glue film, it can be seen from the figure that the present invention is successfully prepared aqueous polyurethane/acrylate Composite Milk
Liquid；
Fig. 2 is that a kind of dynamic mechanical analysis of wide temperature range damping aqueous coating polyaminoester emulsion prepared by present example 1 is bent
Line, it can be seen from the figure that aqueous polyurethane effective damping prepared by the present invention (δ > 0.3 tan) temperature range is -24 DEG C~140 DEG C.
Embodiment 2
Equipped with agitating device, condensing unit, thermometer and be connected with nitrogen protection four-hole boiling flask in, be added polytetrahydrofuran two
Then isophorone diisocyanate is added in alcohol (number-average molecular weight 2000) 40g, vacuum dehydration 1.5h under the conditions of 100 DEG C
26g, castor oil 3g, small molecule chain extender 1,4-butanediol 4g, hydrophilic chain extender dihydromethyl propionic acid 6g and catalyst dibutyltin
System is warming up to 75 DEG C of reaction 2h, end-capping reagent hydroxyethyl methacrylate 4g is added, reacts 1h by dilaurylate 0.1g.
System is cooled to rapidly to 30 DEG C, acetone 70ml is added to reduce viscosity, reaches theoretical value to system-nco value, adds
Enter salt forming agent triethylamine 4g, then the reaction was continued 10min is added deionized water, agitating device revolution is adjusted to 1000rad/
Min, cold emulsifiable 30min obtain aqueous polyurethane emulsion.
System is brought rapidly up to 60 DEG C, emulsifier, initiator is added, styrene 14g, butyl acrylate 14g is added dropwise, instead
4.5h is answered, water polyurethane/acrylic ester composite emulsion is obtained.
Fig. 3 is a kind of dynamic force credit of wide temperature range damping aqueous coating polyaminoester emulsion prepared by present example 2
Curve is analysed, it can be seen from the figure that aqueous polyurethane effective damping prepared by the present invention (δ > 0.3 tan) temperature range is at least 125
℃。
Embodiment 3
Equipped with agitating device, condensing unit, thermometer and be connected with nitrogen protection four-hole boiling flask in, be added polypropylene glycol polyethers
Then toluene di-isocyanate(TDI) 20g, castor is added in (number-average molecular weight 1000) 20g, vacuum dehydration 1.5h under the conditions of 100 DEG C
Sesame oil 5g, small molecule chain extender propylene glycol 4g, hydrophilic chain extender dihydromethyl propionic acid 6g and catalyst dibutyltin cinnamic acid dibutyl
System is warming up to 75 DEG C of reaction 2h, end-capping reagent hydroxyethyl methacrylate 5g is added, reacts 1h by tin 0.1g.
System is cooled to rapidly to 30 DEG C, acetone 50ml is added to reduce viscosity, reaches theoretical value to system-nco value, adds
Enter salt forming agent triethylamine 4g, then the reaction was continued 10min is added deionized water, agitating device revolution is adjusted to 1000rad/
Min, cold emulsifiable 30min obtain aqueous polyurethane emulsion.
System is brought rapidly up to 60 DEG C, emulsifier, initiator is added, styrene 11g, n-butyl acrylate 17g is added dropwise,
4.5h is reacted, water polyurethane/acrylic ester composite emulsion is obtained.
Embodiment 4
Equipped with agitating device, condensing unit, thermometer and be connected with nitrogen protection four-hole boiling flask in, be added polytetrahydrofuran two
Then diphenylmethane diisocyanate is added in alcohol (number-average molecular weight 2000) 45g, vacuum dehydration 1.5h under the conditions of 100 DEG C
Ester 32g, castor oil 6g, small molecule chain extender 1,4-butanediol 4g, hydrophilic chain extender dihydromethyl propionic acid 5g and catalyst two
System is warming up to 75 DEG C of reaction 2h by dibutyl tin laurate 0.1g, and end-capping reagent hydroxyethyl methacrylate 5g, reaction is added
1h。
System is cooled to rapidly to 30 DEG C, acetone 70ml is added to reduce viscosity, reaches theoretical value to system-nco value, adds
Enter salt forming agent triethylamine 3g, then the reaction was continued 10min is added deionized water, agitating device revolution is adjusted to 1000rad/
Min, cold emulsifiable 30min obtain aqueous polyurethane emulsion.
System is brought rapidly up to 60 DEG C, emulsifier, initiator is added, styrene 20g, butyl acrylate 8g is added dropwise, instead
4.5h is answered, water polyurethane/acrylic ester composite emulsion is obtained.
Claims (10)
1. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion, which is characterized in that by polyether polyol
Mixing, polyisocyanates monomer, castor oil, small molecule chain extender, hydrophilic chain extender, salt forming agent, end-capping reagent, esters of acrylic acid
Monomer etc. is made, and raw material includes following components according to parts by weight:
20~100 parts of polyether polyol
20~70 parts of polyisocyanates monomer
3~30 parts of castor oil
2~8 parts of small molecule chain extender
4~12 parts of hydrophilic chain extender
3~9 parts of salt forming agent
4~15 parts of end-capping reagent
20~100 parts of acrylic ester monomer
Damping paint water polyurethane/acrylic ester composite emulsion preparation method includes the following:
Step 1: polyether polyol, isocyanate-monomer, castor oil, small molecule chain extender, hydrophilic expansion are added in four-hole boiling flask
Chain agent and catalyst react 2~4h under the conditions of 70~90 DEG C, and 1~2h of blocking agent reaction is then added and obtains end-sealed type water
Property polyurethane prepolymer;
System: being cooled to rapidly 30~50 DEG C by step 2, and salt forming agent is added and reacts 10~30min, deionized water is then added
20~50min of high-speed stirred, obtains aqueous polyurethane emulsion;
Step 3: being warming up to 55~75 DEG C, and emulsifier is added and reacts 20~30min, adds initiator and acrylate is added dropwise
Class monomer reacts 4~6h, obtains water polyurethane/acrylic ester composite emulsion.
2. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1, special
Sign is that the polyether polyol is selected from Polyoxyethylene glycol, polyoxypropyleneglycol, propylene glycol polyethers, polyoxygenated third
One or more of alkene triol and polytetrahydrofuran diol.
3. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1, special
Sign is that the polyisocyanates monomer is selected from toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, dicyclohexyl
Methane diisocyanate, two isocyanide of hexamethylene diisocyanate, isophorone diisocyanate and durol dimethyl
One or more of acid esters.
4. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1, special
Sign is that the small molecule chain extender is selected from ethylene glycol, 1,4-butanediol, propylene glycol, 2- methyl-1,3-propanediol and one
One or more of diglycol ethylene.
5. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1, special
Sign is that the hydrophilic chain extender is selected from dihydromethyl propionic acid, half rouge of dihydroxy, ethylenediamine base ethanesulfonic acid sodium, Isosorbide-5-Nitrae fourth two
One or more of alcohol -2- sodium sulfonate, diethylenetriamine and methyl diethanolamine.
6. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1,
It is characterized in that, the end-capping reagent is selected from one or more of hydroxyethyl methacrylate, hydroxy-ethyl acrylate.
7. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1, special
Sign is that the salt forming agent is selected from one or more of triethylamine, sodium hydroxide, ammonium hydroxide.
8. a kind of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 1, special
Sign is that the acrylate monomer is methyl methacrylate, ethyl methacrylate, butyl methacrylate, propylene
One or more of sour N-butyl.
9. a kind of preparation method of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion, which is characterized in that packet
It includes as follows:
Step 1: polyether polyol, isocyanate-monomer, castor oil, small molecule chain extender, hydrophilic expansion are added in four-hole boiling flask
Chain agent and catalyst react 2~4h under the conditions of 70~90 DEG C, and 1~2h of blocking agent reaction is then added and obtains end-sealed type water
Property polyurethane prepolymer;
System: being cooled to rapidly 30~50 DEG C by step 2, and salt forming agent is added and reacts 10~30min, deionized water is then added
20~50min of high-speed stirred, obtains aqueous polyurethane emulsion;
Step 3: being warming up to 55~75 DEG C, and emulsifier is added and reacts 20~30min, adds initiator and acrylate is added dropwise
Class monomer reacts 4~6h, obtains water polyurethane/acrylic ester composite emulsion.
10. a kind of system of wide temperature range damping aqueous coating polyurethane/acrylic ester composite emulsion according to claim 9
Preparation Method, which is characterized in that the catalyst is selected from stannous octoate, dibutyl tin dilaurate, triethanolamine and diformazan
One or more of ethylethanolamine.
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Cited By (9)
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| CN110229280A (en) * | 2019-04-24 | 2019-09-13 | 武汉仕全兴新材料科技股份有限公司 | A kind of synthetic method of high hydroxy propylene acid esters lotion |
| CN110483698A (en) * | 2019-08-26 | 2019-11-22 | 广东工业大学 | A kind of aqueous polyurethane multiple emulsion and preparation method thereof |
| CN111875750A (en) * | 2020-01-20 | 2020-11-03 | 中国人民解放军海军工程大学 | Vinyl-terminated polyurethane resin damping material and preparation method thereof |
| CN112375182A (en) * | 2020-11-11 | 2021-02-19 | 长春工业大学 | Hydroxyl-terminated polybutadiene type waterborne polyurethane/acrylate material and preparation method and application thereof |
| CN112724338A (en) * | 2020-12-24 | 2021-04-30 | 浩力森涂料（上海）有限公司 | Castor oil modified emulsion for improving directionality of silver powder of water-based silver powder coating and preparation method of castor oil modified emulsion |
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| CN110229280A (en) * | 2019-04-24 | 2019-09-13 | 武汉仕全兴新材料科技股份有限公司 | A kind of synthetic method of high hydroxy propylene acid esters lotion |
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| CN112375182A (en) * | 2020-11-11 | 2021-02-19 | 长春工业大学 | Hydroxyl-terminated polybutadiene type waterborne polyurethane/acrylate material and preparation method and application thereof |
| CN112724338A (en) * | 2020-12-24 | 2021-04-30 | 浩力森涂料（上海）有限公司 | Castor oil modified emulsion for improving directionality of silver powder of water-based silver powder coating and preparation method of castor oil modified emulsion |
| CN112724338B (en) * | 2020-12-24 | 2022-08-12 | 浩力森涂料（上海）有限公司 | Castor oil modified emulsion for improving directionality of silver powder of water-based silver powder coating and preparation method of castor oil modified emulsion |
| CN113105619A (en) * | 2021-04-14 | 2021-07-13 | 长春工业大学 | Hanging chain type chain extender, preparation and application thereof, hanging chain type waterborne polyurethane acrylate composite emulsion, and preparation and application thereof |
| CN113651923A (en) * | 2021-08-20 | 2021-11-16 | 上海应用技术大学 | Damping water-based resin |
| CN114316151A (en) * | 2021-12-14 | 2022-04-12 | 福建汇得新材料有限公司 | Modified waterborne polyurethane, preparation method thereof and surface treating agent |
| CN114316151B (en) * | 2021-12-14 | 2023-09-12 | 福建汇得新材料有限公司 | Modified waterborne polyurethane, preparation method thereof and surface treatment agent |
| CN115353791A (en) * | 2022-08-30 | 2022-11-18 | 上海高邦印刷材料有限公司 | Preparation method of aluminum foil base coat for water-based ink |
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