CN106674472A - Organosilicone modified waterborne polyurethane emulsion, and preparation method and application thereof - Google Patents
Organosilicone modified waterborne polyurethane emulsion, and preparation method and application thereof Download PDFInfo
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- CN106674472A CN106674472A CN201611049455.8A CN201611049455A CN106674472A CN 106674472 A CN106674472 A CN 106674472A CN 201611049455 A CN201611049455 A CN 201611049455A CN 106674472 A CN106674472 A CN 106674472A
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Abstract
The invention belongs to the field of materials, and concretely relates to an organosilicone modified waterborne polyurethane emulsion, which is prepared from the following components in parts by mass: 25 to 30 parts of polyhydric alcohols, 6 to 12 parts of diisocyanate, 1 to 4 parts of alcohol chain extender, 0.01 to 0.05 part of organic tin catalyst, 1 to 2 parts of hydrophilic chain extender, 0.05 to 0.1 part of organosilicone, and 55 to 60 parts of deionized water. The organosilicone modified waterborne polyurethane emulsion provided by the invention well solves the contradiction problems of low activation temperature and high temperature resistance, has significance on realistic research and practical application, and can be applied in the fields requiring low operating temperature, high bonding strength and especially high temperature resistance, such as the industries of 3D (Three-dimensional) furniture paint-free blister adhesive and fabric composite.
Description
Technical field
The invention belongs to Material Field, and in particular to a kind of organic silicon modified aqueous polyurethane emulsion and preparation method thereof and
Using.
Background technology
With the development of society, requirement more and more higher of the people to material, food, Nicotiana tabacum L., medicine, cosmetics, office disappear
Take product automotive upholstery, Decoration Industry etc. and not only focus on attractive in appearance, the easy construction of material appearance, and practicality it is also proposed
Higher requirement.PVC, PET, PP, PC etc. apply material, particularly containing the PVC of a large amount of plasticizers, the sensitivity to temperature
Greatly, the deformation of material can be caused if processing temperature is higher, is come off or is bubbled.In actually used, producer wishes adhesive
Activationary temperature it is more low better, be on the other hand also the needs of energy-conservation.In addition, finished product made by after adherend bonding, it is desirable to resistance to
The higher the better for warm nature, such as the automotive interior under the sun is exposed to the sun can reach 80 DEG C, and the automotive upholstery of vacuum forming can not take off
Glue, this requires that plastic uptake glue heatproof will be more than 90 DEG C.
At present, in materials processing recombination process, mainly using polyurethane adhesive, consumption maximum is the poly- ammonia of solvent-borne type
Ester gum stick, the problem that it is present is that a large amount of solvent volatilizations not only cause environmental pollution, but also can affect the safety of the mankind.Mesh
Front European and American developed countries have formulated the regulation of correlation, increase the management intensity to solvent-based adhesive, the such as food in the U.S.
With Drug Administration (FDA), the EU90/128 of European Union and China《Packaging composite plastic film, bag dry laminating, extrusion
It is compound》(GB/T10004-2008) all strict regulations such as, packaging material for food aborning must not be molten using benzene and toluene solvant
Agent remains total amount≤5mg/m2。
With people's environmental protection and the continuous enhancing of safety consciousness, composite greenization, environment-friendly type will increasingly be subject to
Pay attention to.So, the low activation temperature of aqueous polyurethane vacuum plastic-absorption and high temperature tolerance can this conflict urgent need solutions.
The content of the invention
In view of this, it is an object of the invention to provide a kind of organic silicon modified aqueous polyurethane emulsion.
To realize object above, the technical scheme is that：
Organic silicon modified aqueous polyurethane emulsion, by mass parts following components is included：Polyhydric alcohol 25-30 parts, two Carbimide .s
Ester 6-12 parts, alcohols chain extender 1-4 part, organic tin catalyst 0.01-0.05 parts, hydrophilic chain extender 1-2 parts, organosilicon
0.05-0.1 parts and deionized water 55-60 parts.
Further, the polyhydric alcohol is PEPA, polyether polyol or combination thing.
Further, the PEPA is that adipic acid type PEPA, polycaprolactone polyol and Merlon are more
One or more in first alcohol.
Further, the diisocyanate is toluene di-isocyanate(TDI), 1,6- hexamethylene diisocyanates, isophorone
1-2 kinds in diisocyanate.
Further, the alcohols chain extender is one or more in diethylene glycol, 1,6- hexanediol and BDO.
Further, the hydrophilic chain extender is ethylenediamine base ethyl sulfonic acid sodium.
Further, the organosilicon is APTES (KH-550) or N- aminoethyl -3- aminopropyls
Methyl dimethoxysilane (KH-602).
Further, the organic tin catalyst is tin dilaurate organotin.
The second object of the present invention is to protect the preparation method of the organic silicon modified aqueous polyurethane emulsion, concrete bag
Include following steps：
S1：By polyhydric alcohol in 110-130 DEG C of vacuum dehydration, under dry inert gas protection, by the polyhydric alcohol drop of dehydration
Temperature adds di-isocyanate reaction 1-1.5h, period to add the acetone regulation equivalent to 2-3 times of polyol quality to 70-75 DEG C
Viscosity：
S2：Alcohols chain extender and organo-bismuth class and/or organic tin catalyst are subsequently adding, in 75-80 DEG C of insulation reaction
4.5-5h, then it is cooled to 35-45 DEG C, organosilicon, hydrophilic chain extender insulation reaction 10-15min are added, obtain ionomer：
S3：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product the organic silicon modified aqueous polyurethane
Emulsion.
The present invention also aims to protect the organic silicon modified aqueous polyurethane emulsion to be combined and 3D furniture in fabric
Exempt to paint the application in plastic uptake glue.Have the advantage that：Low using temperature, adhesive strength is high, and flexibility is good, and resistance to elevated temperatures is good,
Anti-hydrolytic performance is good.
The beneficial effects of the present invention is：
The organic silicon modified aqueous polyurethane emulsion of the application solves well low activation temperature and high temperature tolerance can this
Conflict, with reality research and practical application meaning, can apply to some and uses temperature low, and adhesive strength is high, especially
It is the good field of resistance to elevated temperatures, such as 3D furniture exempts to paint plastic uptake glue and the compound industry of fabric.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.It is unreceipted concrete in embodiment
The experimental technique of condition, generally according to normal condition.
Embodiment 1
S1：Weigh polybutyleneadipate polyhydric alcohol (CMA-44) 24g, polypropylene glycol (PPG) 1g, 1,6- hexa-methylene two
Isocyanates (HDI) 2.6g, isoflurane chalcone diisocyanate (IPDI) 3.4g, diethylene glycol (DEG) 1.75g, tin dilaurate have
Machine stannum (T12) 0.01g, ethylenediamine base sodium sulfonate 1.3g, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilanes (KH-602)
0.07g and deionized water 58g；
S2：By polybutyleneadipate polyhydric alcohol and polypropylene glycol in 110 DEG C of vacuum dehydrations, in dry inert gas protection
Under, the polybutyleneadipate polyhydric alcohol and polypropylene glycol of dehydration are cooled to into 75 DEG C, add the Carbimide. of 1,6- hexa-methylenes two
Ester and isoflurane chalcone diisocyanate reaction 1.5h, period adds total equivalent to polybutyleneadipate polyhydric alcohol and polypropylene glycol
The acetone that 2 times of quality adjusts viscosity；
S3：Diethylene glycol and tin dilaurate organotin are subsequently adding, in 75 DEG C of insulation reaction 5h, then 35 DEG C is cooled to, plus
Enter N- aminoethyl -3- aminopropyltriethoxy dimethoxysilanes, ethylenediamine base sodium sulfonate insulation reaction 15min, obtain ionomer；
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
The activation temperature of organic silicon modified aqueous polyurethane emulsion, temperature tolerance, hydrolytic resistance, plastic uptake obtained in the present embodiment
As shown in table 1, fabric composite heatproof test result is as shown in table 2 for temperature tolerance test result.
Activation temperature method of testing is：Carry out sample preparation according to GB/T2791-1995 standards, using density board and PVC film as
Base material, glue is sprayed in density board the mode for carrying out one side gluing, dries under room temperature, then fits with PVC film, in KT520-
It is hot bonding on 01T Pneumatic hot press, molding pressure is 0.3MPa, time 60s, and molding temperature is adjustable, and handss are used after hot pressing
Inversely (180 ° are peeled off) pulls PVC film, and density board is bonded completely and cause density board surface layer wood flour to be torn and is considered as glue-line with PVC film
Activation, molding temperature now is activation temperature.
Temperature tolerance method of testing is：Sample preparation is carried out according to GB/T2791-1995 standards, using density board and PVC film as base
Material, glue is sprayed in density board to carry out being dried under one side gluing, room temperature, then fits with PVC film, in KT520-01T Aerodynamic Heatings
It is hot bonding on press, molding pressure is 0.3MPa, time 60s, molding temperature is set as after 53 DEG C of hot pressing, will be bonding
Base material preheat 20min under the conditions of 80 DEG C, hang 1Kg hook codes and tested, using 180 ° of stripping modes.
Hydrolytic resistance method of testing is：The emulsion of certain mass is taken, in being placed in the vial of dried and clean, is put into after sealing
In 60 DEG C of water-bath, after placing 6 days 6 nights, observe emulsion skinning and precipitation status and test temperature tolerance (method of testing is ibid).
Plastic uptake heatproof method of testing is：In order to avoid paint 3D furniture and PVC film are used as base material, glue is sprayed at exempts to paint on 3D furniture
Carry out being dried under the mode of one side gluing, room temperature, then fit with PVC film vacuum forming, 180 DEG C of temperature, vacuum -0.08~-
0.09MPa, preheating time：30s, puts into effect time 180s, dwell time 200s.After the completion of plastic uptake, plastic uptake sample is put in into baking oven
In toasted, under the conditions of 50,60,65,70,75 DEG C, continuously toast respectively observe after 3h plastic uptake exemplar side whether there is cissing,
Front whether there is seam broken phenomenon.
Fabric composite heatproof method of testing is：Using canvas strips as base material, glue is brushed respectively enterprising in two pieces of canvas strips
Row gluing above, dries under room temperature, and two pieces of canvas strips are carried out into the laminating of face face, and heat is carried out on KT520-01T Pneumatic hot press
Pressure viscosity connects, and molding pressure is 0.3MPa, and time 90s, molding temperature is set as after 53 DEG C of hot pressing, by bonding base material at 80 DEG C
Under the conditions of preheat 20min, then using 180 ° stripping modes, hang 1Kg hooks code 30min is peeled off under condition of different temperatures, terminate
Afterwards, the distance peeled away between cloth is measured.
Embodiment 2
S1：Weigh polytetrahydrofuran polyol (PTMG) 30g, isoflurane chalcone diisocyanate (IPDI) 12g, 1,4- fourth two
Alcohol (BDO) 0.5g, diethylene glycol (DEG) 0.5g, tin dilaurate organotin (T12) 0.05g, ethylenediamine base sodium sulfonate 1.0g, 3-
Aminopropyltriethoxywerene werene (KH-550) 0.05g and deionized water 55g；
S2：By polytetrahydrofuran polyol in 130 DEG C of vacuum dehydrations, under dry inert gas protection, by the poly- of dehydration
Tetrahydrofuran polyhydric alcohol is cooled to 70 DEG C, adds isoflurane chalcone diisocyanate reaction 1h, period to add equivalent to poly- tetrahydrochysene furan
Mutter 3 times of polyol quality acetone adjust viscosity；
S3：BDO, diethylene glycol and tin dilaurate organotin are subsequently adding, in 80 DEG C of insulation reaction 4.5h, then
45 DEG C are cooled to, APTES, ethylenediamine base sodium sulfonate insulation reaction 10min is added, ionomer is obtained；
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
Embodiment 3
S1：Weigh polybutyleneadipate polyhydric alcohol (CMA-44) 26g, polyadipate hexanediol polyhydric alcohol (4020D)
3.8g, toluene di-isocyanate(TDI) 3.8g, isoflurane chalcone diisocyanate (IPDI) 5.1g, diethylene glycol (DEG) 2.03g, February
Cinnamic acid organotin (T12) 0.01g, ethylenediamine base sodium sulfonate 1.5g, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane (KH-
602) 0.1g and deionized water 57g；
S2：By polybutyleneadipate polyhydric alcohol and polyadipate hexanediol polyhydric alcohol in 120 DEG C of vacuum dehydrations, it is being dried
Under inert gas shielding, the polybutyleneadipate polyhydric alcohol of dehydration and polyadipate hexanediol polyhydric alcohol are cooled to into 72 DEG C,
Toluene di-isocyanate(TDI) and isoflurane chalcone diisocyanate reaction 1.5h are added, period adds many equivalent to polybutyleneadipate
The acetone of 2.5 times of first alcohol and polyadipate hexanediol polyhydric alcohol gross mass adjusts viscosity；
S3：Diethylene glycol and tin dilaurate organotin are subsequently adding, in 78 DEG C of insulation reaction 5h, then 40 DEG C is cooled to, plus
Enter N- aminoethyl -3- aminopropyltriethoxy dimethoxysilanes, ethylenediamine base sodium sulfonate insulation reaction 12min, obtain ionomer；
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
The activation temperature of organic silicon modified aqueous polyurethane emulsion, temperature tolerance, hydrolytic resistance, plastic uptake obtained in the present embodiment
As shown in table 1, fabric composite heatproof test result is as shown in table 2 for temperature tolerance test result.Method of testing and the phase of embodiment 1
Together.
Embodiment 4
S1：Weigh polytetrahydrofuran polyol (PTMG) 19g, polypropylene glycol (PPG) 4g, polycaprolactone polyol (PCL)
4g, 1,6- hexamethylene diisocyanate (HDI) 7.8g, 1,4- butanediol (BDO) 2g, diethylene glycol (DEG) 2g, tin dilaurate
Organotin (T12) 0.03g, ethylenediamine base sodium sulfonate 1.43g, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane (KH-
602) 0.08g and deionized water 56g；
S2：By polytetrahydrofuran polyol and polypropylene glycol in 116 DEG C of vacuum dehydrations, under dry inert gas protection,
The polytetrahydrofuran polyol and polypropylene glycol of dehydration are cooled to into 74 DEG C, the reaction of 1,6- hexamethylene diisocyanates is added
1h, period adds and adjusts viscosity equivalent to the acetone of 2.2 times of polytetrahydrofuran polyol and polypropylene glycol gross mass；
S3：BDO, diethylene glycol and tin dilaurate organotin are subsequently adding, in 76 DEG C of insulation reaction 5h, then are dropped
Temperature adds N- aminoethyl -3- aminopropyltriethoxy dimethoxysilanes, ethylenediamine base sodium sulfonate insulation reaction 13min to 38 DEG C, obtains
To ionomer；
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
Embodiment 5
S1：Weigh polybutyleneadipate polyhydric alcohol (CMA-44) 12.8g, polyadipate hexanediol polyhydric alcohol (4020D)
12.8g, toluene di-isocyanate(TDI) 5.2g, isoflurane chalcone diisocyanate (IPDI) 6.6g, diethylene glycol (DEG) 3.5g, February
Cinnamic acid organotin (T12) 0.01g, ethylenediamine base sodium sulfonate 1.7g, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane (KH-
602) 0.06g and deionized water 57g；
S2：By polybutyleneadipate polyhydric alcohol and polyadipate hexanediol polyhydric alcohol in 115 DEG C of vacuum dehydrations, it is being dried
Under inert gas shielding, the polybutyleneadipate polyhydric alcohol of dehydration and polyadipate hexanediol polyhydric alcohol are cooled to into 75 DEG C,
Toluene di-isocyanate(TDI) and isoflurane chalcone diisocyanate reaction 1h are added, period adds polynary equivalent to polybutyleneadipate
The acetone of 2.8 times of alcohol and polyadipate hexanediol polyhydric alcohol gross mass adjusts viscosity：
S3：Diethylene glycol and tin dilaurate organotin are subsequently adding, in 75 DEG C of insulation reaction 4.5h, then 45 DEG C is cooled to,
N- aminoethyl -3- aminopropyltriethoxy dimethoxysilanes, ethylenediamine base sodium sulfonate insulation reaction 10min are added, ionomer is obtained：
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
The activation temperature of organic silicon modified aqueous polyurethane emulsion, temperature tolerance, hydrolytic resistance, plastic uptake obtained in the present embodiment
As shown in table 1, fabric composite heatproof test result is as shown in table 2 for heatproof test result.Method of testing is same as Example 1.
Embodiment 6
S1：Weigh polytetrahydrofuran polyol (PTMG) 22.5g, polypropylene glycol (PPG) 3g, polycarbonate polyol
(PCDL) 3g, toluene di-isocyanate(TDI) 10.9g, 1,4- butanediol (BDO) 1.3g, 1,6-HD (HDO) 1.3g, diethylene glycol
(DEG) 1.3g, tin dilaurate organotin (T12) 0.02g, ethylenediamine base sodium sulfonate 2g, APTES
(KH-550) 0.09g and deionized water 60g；
S2：By polytetrahydrofuran polyol and polypropylene glycol in 118 DEG C of vacuum dehydrations, under dry inert gas protection,
The polytetrahydrofuran polyol and polypropylene glycol of dehydration are cooled to into 75 DEG C, toluene di-isocyanate(TDI) reaction 1.5h, period is added
Add and adjust viscosity equivalent to the acetone of 2 times of polytetrahydrofuran polyol and polypropylene glycol gross mass：
S3：BDO, 1,6- hexanediol, diethylene glycol and dilaurate organotin are subsequently adding, in 75 DEG C of insulations
Reaction 5h, then it is cooled to 42 DEG C, APTES, ethylenediamine base sodium sulfonate insulation reaction 15min are added, obtain
To ionomer：
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
Comparative example 1
S1：Weigh polybutyleneadipate polyhydric alcohol (CMA-44) 24.3g, polytetrahydrofuran polyol (PTMG) 2.1g,
Toluene di-isocyanate(TDI) 4.5g, isoflurane chalcone diisocyanate (IPDI) 5.7g, diethylene glycol (DEG) 2.8g, tin dilaurate have
Machine stannum (T12) 0.01g, ethylenediamine base sodium sulfonate 1.25g and deionized water 59g；
S2：By polybutyleneadipate polyhydric alcohol and polytetrahydrofuran polyol in 122 DEG C of vacuum dehydrations, inertia is being dried
Under gas shield, the polybutyleneadipate polyhydric alcohol and polytetrahydrofuran polyol of dehydration are cooled to into 70 DEG C, add toluene
Diisocyanate and isoflurane chalcone diisocyanate reaction 1h, period is added equivalent to polybutyleneadipate polyhydric alcohol and poly- four
The acetone of 2.5 times of hydrogen furan polyols gross mass adjusts viscosity：
S3：Diethylene glycol and tin dilaurate organotin are subsequently adding, in 79 DEG C of insulation reaction 4.5h, then 37 DEG C is cooled to,
Ethylenediamine base sodium sulfonate insulation reaction 10min is added, ionomer is obtained：
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
The activation temperature of organic silicon modified aqueous polyurethane emulsion, temperature tolerance, hydrolytic resistance, plastic uptake obtained in the present embodiment
As shown in table 1, fabric composite heatproof test result is as shown in table 2 for heatproof test result.Method of testing is same as Example 1.
Comparative example 2
S1：Weigh polybutyleneadipate polyhydric alcohol (CMA-44) 19g, polyadipate hexanediol polyhydric alcohol (4020D)
6.4g, toluene di-isocyanate(TDI) 5.2g, isoflurane chalcone diisocyanate (IPDI) 6.6g, diethylene glycol (DEG) 3.4g, two Laurels
Sour organotin (T12) 0.01g, ethylenediamine base sodium sulfonate 1.8g and deionized water 57g；
S2：By polybutyleneadipate polyhydric alcohol and polyadipate hexanediol polyhydric alcohol in 120 DEG C of vacuum dehydrations, it is being dried
Under inert gas shielding, the polybutyleneadipate polyhydric alcohol of dehydration and polyadipate hexanediol polyhydric alcohol are cooled to into 72 DEG C,
Di-isocyanate reaction 1.5h, period is added to add polynary equivalent to polybutyleneadipate polyhydric alcohol and polyadipate hexanediol
The acetone that 2 times of alcohol gross mass adjusts viscosity：
S3：Diethylene glycol and tin dilaurate organotin are subsequently adding, in 76 DEG C of insulation reaction 5h, then 35 DEG C is cooled to, plus
Enter ethylenediamine base sodium sulfonate insulation reaction 15min, obtain ionomer：
S4：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product organic silicon modified aqueous polyurethane emulsion.
The activation temperature of organic silicon modified aqueous polyurethane emulsion, temperature tolerance, hydrolytic resistance, plastic uptake obtained in the present embodiment
As shown in table 1, fabric composite heatproof test result is as shown in table 2 for heatproof test result.Method of testing is same as Example 1.
Table 1
| Activation temperature/DEG C | Temperature tolerance s/cm | Hydrolytic resistance s/cm | Exemplar cissing size/mm | |
| Embodiment 1 | 33 | Wood destruction | 6200 | 1.2 |
| Embodiment 3 | 35 | Wood destruction | Wood destruction | 0.8 |
| Embodiment 5 | 39 | Wood destruction | Wood destruction | 0.5 |
| Comparative example 1 | 37 | Wood destruction | 2380 | 1.1 |
| Comparative example 2 | 36 | Wood destruction | Wood destruction | 1.0 |
Table 2
| Baking temperature/DEG C | Baking time/min | Peel distance/cm | |
| Embodiment 1 | 110 | 30 | 3.8 |
| Embodiment 3 | 130 | 30 | 2 |
| Embodiment 5 | 140 | 30 | 1 |
| Comparative example 1 | 120 | 30 | 3.0 |
| Comparative example 2 | 130 | 30 | 5 |
Finally illustrate, above example is only unrestricted to illustrate technical scheme, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (10)
1. organic silicon modified aqueous polyurethane emulsion, it is characterised in that include following components by mass parts：Polyhydric alcohol 25-30 parts,
Diisocyanate 6-12 parts, alcohols chain extender 1-4 part, organic tin catalyst 0.01-0.05 parts, hydrophilic chain extender 1-2 parts, have
Machine silicon 0.05-0.1 parts and deionized water 55-60 parts.
2. organic silicon modified aqueous polyurethane emulsion according to claim 1, it is characterised in that：The polyhydric alcohol is polyester
Polyhydric alcohol, polyether polyol or combination thing.
3. organic silicon modified aqueous polyurethane emulsion according to claim 2, it is characterised in that：The PEPA is for oneself
One or more in two acid type PEPAs, polycaprolactone polyol and polycarbonate polyol.
4. organic silicon modified aqueous polyurethane emulsion according to claim 1, it is characterised in that：The diisocyanate is first
1-2 kinds in phenylene diisocyanate, 1,6- hexamethylene diisocyanates, isoflurane chalcone diisocyanate.
5. organic silicon modified aqueous polyurethane emulsion according to claim 1, it is characterised in that：The alcohols chain extender is two
One or more in ethylene glycol, 1,6-HD and 1,4- butanediols.
6. organic silicon modified aqueous polyurethane emulsion according to claim 1, it is characterised in that：The hydrophilic chain extender is second
Two amido ethyl sulfonic acid sodium.
7. organic silicon modified aqueous polyurethane emulsion according to claim 1, it is characterised in that：The organosilicon is 3- amino
Propyl-triethoxysilicane or N- aminoethyl -3- aminopropyltriethoxy dimethoxysilanes.
8. organic silicon modified aqueous polyurethane emulsion according to claim 1, it is characterised in that：The organic tin catalyst
For tin dilaurate organotin.
9. the preparation method of organic silicon modified aqueous polyurethane emulsion described in any one of claim 1-8, it is characterised in that include
Following steps：
S1：By polyhydric alcohol in 110-130 DEG C of vacuum dehydration, under dry inert gas protection, the polyhydric alcohol of dehydration is cooled to
70-75 DEG C, di-isocyanate reaction 1-1.5h, period is added to add the acetone regulation viscosity equivalent to 2-3 times of polyol quality：
S2：Alcohols chain extender and organic tin catalyst are subsequently adding, in 75-80 DEG C of insulation reaction 4.5-5h, then 35- is cooled to
45 DEG C, organosilicon, hydrophilic chain extender insulation reaction 10-15min are added, obtain ionomer：
S3：Again plus deionized water emulsifying, and at the uniform velocity stir, remove acetone, obtain final product the organic silicon modified aqueous polyurethane emulsion.
10. organic silicon modified aqueous polyurethane emulsion described in claim 1 is compound in fabric and 3D furniture exempts to paint in plastic uptake glue
Using.
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| CN110229302A (en) * | 2019-05-31 | 2019-09-13 | 湘潭大学 | A kind of aqueous polyurethane emulsion and preparation method thereof of side chain silicon atoms |
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| CN111273498A (en) * | 2020-01-17 | 2020-06-12 | 广州奥翼材料与器件研究院有限公司 | Electrophoretic display |
| CN111253901A (en) * | 2020-01-17 | 2020-06-09 | 广州奥翼材料与器件研究院有限公司 | Organic silicon modified polyurethane adhesive, preparation method thereof and electrophoretic display |
| CN111995943A (en) * | 2020-09-09 | 2020-11-27 | 江西省科学院应用化学研究所 | Organic silicon modified waterborne polyurethane waterproof coating and preparation method thereof |
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