CN107266648A - A kind of waterborne polyurethane resin from delustring and preparation method thereof - Google Patents
A kind of waterborne polyurethane resin from delustring and preparation method thereof Download PDFInfo
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- CN107266648A CN107266648A CN201710709993.3A CN201710709993A CN107266648A CN 107266648 A CN107266648 A CN 107266648A CN 201710709993 A CN201710709993 A CN 201710709993A CN 107266648 A CN107266648 A CN 107266648A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6541—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of waterborne polyurethane resin and preparation method from delustring, it is made up of each component of following proportioning：The parts by weight of first polyalcohol 25 35, the parts by weight of the second polyalcohol 20 35, the parts by weight of hydroxy silicon oil 25, the parts by weight of isocyanates 20 30, the parts by weight of diol chain-extension agent 12, the parts by weight of diamine chain stretching agent 58, the parts by weight of hydrophilic chain extender 1 1.5.Belonging to from the waterborne polyurethane resin of delustring for the present invention is free of any matte powder from delustring processing, system, therefore leather finish does not have any dry linting phenomenon, and delustring nature.
Description
Technical field
The present invention relates to the aqueous delustring process field of use for synthetic leather, the more particularly to synthesis applied to synthetic leather rear section technique
Leather matte management, in particular it relates to a kind of waterborne polyurethane resin from delustring, present invention simultaneously relates to this from the water of delustring
The preparation method of property polyurethane resin.
Background technology
Synthetic leather has the advantages that easy to process, quality is unified, numerous in variety, using in extensive range.Process for treating surface
Synthetic leather processing can be gone out to different surface styles, requirement of the people to a variety of styles in synthetic leather surface is met.However, with
The progress of production technology and aesthetic transformation, requirement of the consumer not only to the color and luster of leather surface, texture and feel are got over
Come higher, also to need some matte effects.And the aqueous delustring processing of existing use for synthetic leather be generally powder delustring component or
One layer of matt film is laid, such delustring processing method can not have matte effect gradually with the use of synthetic leather.Therefore, need
It is a kind of from extinction material so that synthetic leather persistently has extinction effect, will not be because losing matte effect using abrasion.
The content of the invention
In order to solve the above problems and defect, it is an object of the invention to provide a kind of waterborne polyurethane resin from delustring.
The present invention's is achieved through the following technical solutions from the waterborne polyurethane resin of delustring：
According to the present invention there is provided a kind of waterborne polyurethane resin from delustring, it is made up of each component of following proportioning：First
Polyalcohol 25-35 parts by weight, the second polyalcohol 20-35 parts by weight, hydroxy silicon oil 2-5 parts by weight, isocyanates 20-30 weight
Part, diol chain-extension agent 1-2 parts by weight, diamine chain stretching agent 5-8 parts by weight, hydrophilic chain extender 1-1.5 parts by weight.
Further, it is made up of each component of following proportioning：First polyalcohol 26-30 parts by weight, the second polyalcohol 23-30
Parts by weight, hydroxy silicon oil 3-4 parts by weight, isocyanates 25-30 parts by weight, diol chain-extension agent 1-2 parts by weight, diamine chain stretching agent 6-
7 parts by weight, hydrophilic chain extender 1-1.5 parts by weight.
Further, it is made up of each component of following proportioning：The parts by weight of first polyalcohol 27, the weight of the second polyalcohol 25
Part, the parts by weight of hydroxy silicon oil 4, the parts by weight of isocyanates 26, the parts by weight of diol chain-extension agent 1.5, the parts by weight of diamine chain stretching agent 6, parent
The parts by weight of water chain extender 1.5.
Further, the first polyalcohol can be one kind of PTMG, polysiloxane binary alcohol.
Further, the second polyalcohol can be PCDL, one kind of 1,6- hexylene glycols.
Further, isocyanates can be IPDI, methyl diphenylene diisocyanate, toluene two
The one or more of isocyanates.
Further, diol chain-extension agent can be dihydromethyl propionic acid, trimethylolpropane, 1,3-BDO, Isosorbide-5-Nitrae-fourth
The one or more of glycol, neopentyl glycol.
Further, diamine chain stretching agent can be IPD, the one or two of two methane of diaminourea.
Further, hydrophilic chain extender can be A95 sulfamates, the one or two of 2,2- dihydromethyl propionic acids.
Preferably, the first polyalcohol is PTMG；Second polyalcohol is PCDL.
Preferably, isocyanates is IPDI, and diol chain-extension agent is dihydromethyl propionic acid and/or three hydroxyls
Methylpropane, diamine chain stretching agent is IPD, and hydrophilic chain extender is sulfamate.
Preferably, the molecular weight of PTMG is 1000, and the molecular weight of PCDL is 2000.
According to another aspect of the present invention, a kind of preparation method of the waterborne polyurethane resin as described above from delustring,
Comprise the steps of：
1) proportioning as any one of claim 1-3 weighs each component material, by the first polyalcohol, more than second yuan
Alcohol and hydroxy silicon oil add thermal dehydration in flask；
2) by step 1) obtained by mixture cooling after add isocyanates, then heating and insulation reaction, determine NCO contain
Amount；
3) to step 2) obtained by mixture cooling after add diol chain-extension agent, reaction after determine NCO content；
4) to step 3) obtained by mixture add acetone, and add hydrophilic chain extender, continue after low-temp reaction at a high speed
The lower deionized water that adds of shearing is disperseed, and is adding diamine chain stretching agent, continuation is scattered, is finally removed under reduced pressure third in system
Ketone, obtains waterborne polyurethane resin.
Further, the heating-up temperature in step 1 is 100-120 DEG C, and dewatering time is 1-2h.
Further, the insulation reaction time in step 2 is 1-2h.
Further, the reaction time in step 3 is 2-4h.
Further, the low-temp reaction temperature in step 4 is 45-55 DEG C；The low-temp reaction time is 10-20min.
Due to using above technical scheme, the present invention has the following advantages that compared with prior art：
Waterborne polyurethane resin of the present invention from delustring is ep-type material, meets the environmental protection standard of European Union；
Belonging to from the waterborne polyurethane resin of delustring for the present invention is free of any matte powder from delustring processing, system,
Therefore leather finish does not have any dry linting phenomenon, and delustring nature；
The waterborne polyurethane resin from delustring of the present invention is free of any organic and inorganic particle delustring component, belongs to and disappears certainly
Luminescent material, is innovative back segment material；
The waterborne polyurethane resin from delustring of the present invention adds hydroxy silicon oil and is modified, and substantially increases inorganic agent
Scratch resistance and Surface feel.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiment, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention
The fixed present invention.
Embodiment 1
By 96g PTMGs (molecular weight is 1000), 90g PCDLs (molecular weight is 2000) and
10g activity hydroxies silicone oil adds 105 DEG C of four-hole boiling flask and is dehydrated 1 hour, is then cooled to 50 DEG C, adds 74.4g isophorones two
Isocyanates, is warming up to 85 DEG C of insulation reactions 1.5 hours, then determines NCO content, reaches and is cooled to 50 DEG C after theoretical value, plus
Enter 1g dihydromethyl propionic acids and 1.2g trimethylolpropanes, be warming up to 80 DEG C, continue to react 2.5 hours, determine NCO (nitrogen carbon oxygen)
Reach after theoretical value, be cooled to 60 DEG C, add 350g acetone viscosity reductions, be cooled to 50 DEG C, add a small amount of water-reducible 8.4gA95 ammonia
Base sulfonic acid saline solution (be diluted to original solution 98%), continues 50 DEG C and reacts 15 minutes, then added under high speed shear
280ml deionized waters, disperse 2 minutes, add and use the water-reducible 20g IPDs solution of ice, continue scattered 10 minutes, most
The acetone in system is removed under reduced pressure afterwards, water-base polyurethane material is obtained.The performance indications of resulting waterborne polyurethane resin are shown in
Table 1.
The methods such as the heating employed in above-mentioned preparation process are customary way in the art.
Embodiment 2
By 30 parts by weight PTMGs (molecular weight is 1000), 29 weight part polycarbonate glycol (molecular weight
2000) to add 105 DEG C of four-hole boiling flask with 2 parts by weight of activated hydroxy silicon oils and being dehydrated 1 hour, 50 DEG C are then cooled to, 23 are added
Parts by weight IPDI, is warming up to 85 DEG C of insulation reactions 1.5 hours, then determines NCO content, reaches theoretical value
After be cooled to 50 DEG C, add 1 parts by weight dihydromethyl propionic acid and 1 parts by weight trimethylolpropane, be warming up to 80 DEG C, continue to react
2.5 hours, determine NCO (nitrogen carbon oxygen) and reach after theoretical value, be cooled to 60 DEG C, add 100 pbw acetone viscosity reductions, be cooled to 50
DEG C, a small amount of water-reducible 1 parts by weight A95 sulfamic acids saline solution (be diluted to original solution 98%) is added, continues 50 DEG C instead
Answer 15 minutes, 280ml deionized waters are then added under high speed shear, disperse 2 minutes, add and use water-reducible 6 parts by weight of ice
IPD solution, continues scattered 10 minutes, the acetone in system is finally removed under reduced pressure, water-base polyurethane material is obtained.
The performance indications of resulting waterborne polyurethane resin are shown in Table 1.
The methods such as the heating employed in above-mentioned preparation process are customary way in the art.
Embodiment 3
By 25 parts by weight PTMGs (molecular weight is 1000), 20 weight part polycarbonate glycol (molecular weight
2000) to add 100 DEG C of four-hole boiling flask with 3 parts by weight of activated hydroxy silicon oils and being dehydrated 1.5 hours, 50 DEG C, addition are then cooled to
20 parts by weight IPDIs, are warming up to 80 DEG C of insulation reactions 1 hour, then determine NCO content, reach theoretical value
After be cooled to 50 DEG C, add 1 parts by weight dihydromethyl propionic acid and 1 parts by weight trimethylolpropane, be warming up to 80 DEG C, continue to react
2 hours, determine NCO (nitrogen carbon oxygen) and reach after theoretical value, be cooled to 60 DEG C, add 90 pbw acetone viscosity reductions, be cooled to 45 DEG C,
A small amount of water-reducible 1.2 parts by weight A95 sulfamic acids saline solution (be diluted to original solution 98%) is added, continues 45 DEG C of reactions
10 minutes, 250ml deionized waters are then added under high speed shear, are disperseed 2 minutes, are added different with water-reducible 5 parts by weight of ice
Isophoronediamine solution, continues scattered 10 minutes, the acetone in system is finally removed under reduced pressure, water-base polyurethane material is obtained.Institute
The performance indications of obtained waterborne polyurethane resin are shown in Table 1.
The methods such as the heating employed in above-mentioned preparation process are customary way in the art.
Embodiment 4
By 35 parts by weight PTMGs (molecular weight is 1000), 35 weight part polycarbonate glycol (molecular weight
2000) to add 120 DEG C of four-hole boiling flask with 5 parts by weight of activated hydroxy silicon oils and being dehydrated 2 hours, 50 DEG C are then cooled to, 30 are added
Parts by weight IPDI, is warming up to 85 DEG C of insulation reactions 1 hour, then determines NCO content, reaches after theoretical value
50 DEG C are cooled to, 0.5 parts by weight dihydromethyl propionic acid and 0.5 parts by weight trimethylolpropane is added, 80 DEG C are warming up to, continues anti-
Answer 4 hours, determine NCO (nitrogen carbon oxygen) and reach after theoretical value, be cooled to 60 DEG C, add 110 pbw acetone viscosity reductions, be cooled to 55
DEG C, a small amount of water-reducible 1.5 parts by weight A95 sulfamic acids saline solution (be diluted to original solution 98%) is added, continues 55 DEG C
Reaction 20 minutes, then adds 280ml deionized waters under high speed shear, disperses 2 minutes, adds and uses water-reducible 8 weight of ice
Part IPD solution, continues scattered 10 minutes, the acetone in system is finally removed under reduced pressure, aqueous polyurethane material is obtained
Material.The performance indications of resulting waterborne polyurethane resin are shown in Table 1.
The methods such as the heating employed in above-mentioned preparation process are customary way in the art.
Embodiment 5
By 27 parts by weight polysiloxane binary alcohols, 25 weight part polycarbonate glycol (molecular weight is 2000) and 4 parts by weight
Activity hydroxy silicone oil adds 105 DEG C of four-hole boiling flask and is dehydrated 1 hour, is then cooled to 50 DEG C, adds 26 parts by weight diphenyl methanes
Diisocyanate, is warming up to 85 DEG C of insulation reactions 1.5 hours, then determines NCO content, reaches and 50 DEG C are cooled to after theoretical value,
1.5 parts by weight 1,3-BDOs are added, 80 DEG C are warming up to, continue to react 2.5 hours, NCO (nitrogen carbon oxygen) is determined and reaches theoretical value
Afterwards, 60 DEG C are cooled to, 100 pbw acetone viscosity reductions are added, 50 DEG C are cooled to, a small amount of water-reducible 1 parts by weight 2,2- bis- are added
Hydroxymethyl propionic acid (be diluted to original solution 95%), continues 50 DEG C and reacts 15 minutes, 290ml is then added under high speed shear and is gone
Ionized water, disperses 2 minutes, adds and uses water-reducible 6 parts by weight diaminourea, two methane of ice, continues scattered 10 minutes, finally subtracts
The acetone in removing system is pressed, water-base polyurethane material is obtained.The performance indications of resulting waterborne polyurethane resin are shown in Table 1.
The methods such as the heating employed in above-mentioned preparation process are customary way in the art.
Embodiment 6
By 26 parts by weight PTMGs (molecular weight is 1000), 30 weight part polycarbonate glycol (molecular weight
2000) to add 105 DEG C of four-hole boiling flask with 2 parts by weight of activated hydroxy silicon oils and being dehydrated 1 hour, 50 DEG C are then cooled to, 23 are added
Parts by weight of toluene diisocyanate, is warming up to 85 DEG C of insulation reactions 1.5 hours, then determines NCO content, reaches and is dropped after theoretical value
Temperature adds 1 parts by weight BDO to 50 DEG C, is warming up to 80 DEG C, continues to react 2.5 hours, determines NCO (nitrogen carbon oxygen) and reaches
After theoretical value, 60 DEG C are cooled to, 100 pbw acetone viscosity reductions are added, 50 DEG C are cooled to, a small amount of water-reducible 1 parts by weight are added
A95 sulfamates (be diluted to original solution 98%), continue 50 DEG C and react 15 minutes, then added under high speed shear
290ml deionized waters, disperse 2 minutes, add and use the water-reducible 6 parts by weight IPD of ice, continue scattered 10 minutes, most
The acetone in system is removed under reduced pressure afterwards, water-base polyurethane material is obtained.The performance indications of resulting waterborne polyurethane resin are shown in
Table 1.
The methods such as the heating employed in above-mentioned preparation process are customary way in the art.
Embodiment 1-6 NCO (nitrogen carbon oxygen) theoretical value is generally n (NCO)/n (OH), about 0.94-1.06.
Table 1
The foregoing is only presently preferred embodiments of the present invention, not for limit the present invention practical range；If do not taken off
From the spirit and scope of the present invention, the present invention is modified or equivalent substitution, all should covered in the claims in the present invention
Among protection domain.
Claims (10)
1. a kind of waterborne polyurethane resin from delustring, it is characterised in that be made up of each component of following proportioning：First polyalcohol
25-35 parts by weight, the second polyalcohol 20-35 parts by weight, hydroxy silicon oil 2-5 parts by weight, isocyanates 20-30 parts by weight, glycol
Chain extender 1-2 parts by weight, diamine chain stretching agent 5-8 parts by weight, hydrophilic chain extender 1-1.5 parts by weight.
2. the waterborne polyurethane resin according to claim 1 from delustring, it is characterised in that by each component of following proportioning
Composition：First polyalcohol 26-30 parts by weight, the second polyalcohol 23-30 parts by weight, hydroxy silicon oil 3-4 parts by weight, isocyanates
25-30 parts by weight, diol chain-extension agent 1-2 parts by weight, diamine chain stretching agent 6-7 parts by weight, hydrophilic chain extender 1-1.5 parts by weight.
3. the waterborne polyurethane resin according to claim 1 from delustring, it is characterised in that by each component of following proportioning
Composition：The parts by weight of first polyalcohol 27, the parts by weight of the second polyalcohol 25, the parts by weight of hydroxy silicon oil 4, the parts by weight of isocyanates 26,
The parts by weight of diol chain-extension agent 1.5, the parts by weight of diamine chain stretching agent 6, the parts by weight of hydrophilic chain extender 1.5.
4. the waterborne polyurethane resin according to claim 1 from delustring, it is characterised in that first polyalcohol is poly-
Tetrahydrofuran ether glycol；Second polyalcohol is PCDL.
5. the waterborne polyurethane resin according to claim 1 from delustring, it is characterised in that the isocyanates is different Buddhist
That ketone diisocyanate, the diol chain-extension agent is dihydromethyl propionic acid and/or trimethylolpropane, and the diamine chain stretching agent is
IPD, the hydrophilic chain extender is sulfamate.
6. the waterborne polyurethane resin according to claim 4 from delustring, it is characterised in that the PTMG two
The molecular weight of alcohol is 1000, and the molecular weight of the PCDL is 2000.
7. a kind of preparation method of the waterborne polyurethane resin from delustring described in above-mentioned any one claim, its feature exists
In comprising the steps of：
1) proportioning as any one of claim 1-3 weighs each component material, by the first polyalcohol, the second polyalcohol and
Hydroxy silicon oil adds thermal dehydration in flask；
2) by step 1) obtained by mixture cooling after add isocyanates, then heating and insulation reaction, determine NCO content；
3) to step 2) obtained by mixture cooling after add diol chain-extension agent, reaction after determine NCO content；
4) to step 3) obtained by mixture add acetone, and add hydrophilic chain extender, continue after low-temp reaction in high speed shear
Lower addition deionized water is disperseed, and is adding diamine chain stretching agent, continues scattered, the acetone in system is finally removed under reduced pressure, obtains
To waterborne polyurethane resin.
8. the preparation method of the waterborne polyurethane resin according to claim 7 from delustring, it is characterised in that the step
Heating-up temperature in 1 is 100-120 DEG C, and dewatering time is 1-2h.
9. the preparation method of the waterborne polyurethane resin according to claim 7 from delustring, it is characterised in that the step
The insulation reaction time in 2 is 1-2h.
10. the preparation method of the waterborne polyurethane resin according to claim 7 from delustring, it is characterised in that the step
Reaction time in rapid 3 is 2-4h.
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| CN107722236A (en) * | 2017-11-07 | 2018-02-23 | 陕西科技大学 | A kind of organic-silicon-modified preparation method and application from delustring aqueous polyurethane of use for synthetic leather |
| CN108546323A (en) * | 2018-04-18 | 2018-09-18 | 万华化学集团股份有限公司 | Cation is from matting resin and its preparation method and application |
| CN108912298A (en) * | 2018-07-23 | 2018-11-30 | 福建宝利特科技股份有限公司 | A kind of automobile leather surface treating agent and preparation method thereof |
| CN108997559A (en) * | 2018-06-07 | 2018-12-14 | 安徽匠星联创新材料科技有限公司 | A kind of dumb light type water-base polyurethane material and preparation method thereof |
| CN109180901A (en) * | 2018-08-23 | 2019-01-11 | 洛阳盛嘉新材料有限公司 | From delustring aqueous polyurethane and preparation method thereof |
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| CN109796574A (en) * | 2018-12-26 | 2019-05-24 | 浙江深蓝新材料科技有限公司 | The aqueous preparation method from matting resin |
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