CN108997559A - A kind of dumb light type water-base polyurethane material and preparation method thereof - Google Patents
A kind of dumb light type water-base polyurethane material and preparation method thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—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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- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- 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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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
Abstract
The invention discloses a kind of dumb light type water-base polyurethane material and preparation methods, it is related to water-base polyurethane material technical field, solid content 30%-40% is made of the raw material of following parts by weight: 20-30 parts of diisocyanate, 40-50 parts of macromolecular polyol, 1.2-3 parts of small molecule chain extender, 1-2.5 parts of small molecule hydrophilic compounds, 0.2-0.4 parts of catalyst, 0.7-1.4 parts of anion emulsifier, 131-170 parts of deionized water, 0.7-2 parts of neutralizer, 3-5 parts of polyamine chain extender.Dumb light type water-base polyurethane material prepared by the present invention does not need additional delustering agent, avoids " jaundice of whitening " phenomenon, safety and environmental protection, and emulsion property is stablized；And there is excellent mechanical performance and rub resistance, water resistance, be provided simultaneously with dumb light performance, can be widely applied to water paint.
Description
Technical field:
The present invention relates to water-base polyurethane material technical fields, and in particular to a kind of dumb light type water-base polyurethane material and its
Preparation method.
Background technique:
Most representative in water paint is aqueous polyurethane coating, it is free of or containing minimal amount of organic solvent, grain
Diameter is small, has preferable dispersion stabilization, not only remains some excellent performances of traditional solvent borne polyurethane coating, but also
Also have that film-forming temperature is low, adhesive force is strong, wearability is good, hardness is big and the superior functions such as chemicals-resistant, good weatherability.
At present using dumb light delustring it is gradually welcomed by the people as the aqueous dumb light product of representative, and prepare aqueous dumb light
The method that paint generallys use physics addition delustering agent, the brittleness of manufactured dumb light coating is poor, and is added caused by delustering agent and applies
Performance decline is expected as precipitated, the storage stability of coating is poor, the resistance to polishability of coating is poor, the film transparency reduces etc..
In order to overcome several above problems, by do not add dumb light delustering agent method, to synthesize the water with matte effect
Property polyurethane material.Ontology dumb light polyurethane material, on the one hand can retain the excellent performance of polyurethane, on the other hand by pair
The change of polyurethane design, can make the more uniform stabilization of synthetic material, and spraying application convenience, coating uniform reach more excellent
Different matte effect.
Patent CN201510416194.8 discloses a kind of synthetic method of dumb light type waterborne polyurethane resin multiple emulsion,
Silane coupler modified fumed silica is accessed by chemical bond in aqueous polyurethane, obtains stronger stability and excellent
Matte effect, film forming has preferable penetrating degree after covering with paint, will not make to scytoblastema color while reaching matte effect
At influence, " whitening, burnt hair " phenomenon that additional delustering agent is easy to appear is avoided.Fumed silica belongs to commonly used in the art disappear
Modified fumed silica is made by silane coupling agent in photo etching, the patent, and will modified fumed silica using chemical bond
It is connected in polyurethane molecular structure to avoid technical problem existing for conventional additional fumed silica.
Summary of the invention:
Technical problem to be solved by the present invention lies in excellent storage stability when providing a kind of conduct coating and form painting
The excellent dumb light type water-base polyurethane material and preparation method thereof of layer service performance.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
A kind of dumb light type water-base polyurethane material, solid content 30%-40% are made of the raw material of following parts by weight:
20-30 parts of diisocyanate, 40-50 parts of macromolecular polyol, 1.2-3 parts of small molecule chain extender, small molecule are hydrophilic
1-2.5 parts of compound, 0.2-0.4 parts of catalyst, 0.7-1.4 parts of anion emulsifier, 131-170 parts of deionized water, neutralizer
0.7-2 parts, 3-5 parts of polyamine chain extender.
The diisocyanate is selected from toluene di-isocyanate(TDI) TDI, isophorone diisocyanate IPDI, diphenyl methane
Diisocyanate MDI, hexamethylene diisocyanate HDI, benzene dimethylene diisocyanate XDI, naphthalene -1,5- diisocyanate
One or both of NDI, polymethylene multi-phenenyl isocyanate PAPI.
The macromolecular polyol is selected from polycaprolactone polyol PCL, polycarbonate polyol PCD, polytetrahydrofuran ether
One or more of polyalcohol PTMG, polyethylene glycol PEG, polyoxypropylene polyol PPG.
The small molecule chain extender is selected from ethylene glycol, diglycol, 1,4- butanediol, 2,3- butanediol, 2- methyl-
One of 1,3 propylene glycol, 1,6-HD, neopentyl glycol, diethylene glycol (DEG), glycerol, trimethylolpropane, hydroxymethyl-cyclohexane
Or two kinds.
The small molecule hydrophilic compounds are selected from dihydromethyl propionic acid, dimethylolpropionic acid, dimethylol pentanoic acid, dihydroxy first
One or more of base octanoic acid.
The catalyst is in dibutyl tin dilaurate, isooctyl acid bismuth, bismuth neodecanoate, bismuth naphthenate, lauric acid bismuth
One kind.
The anion emulsifier is selected from dodecyl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, fatty alcohol polyoxy
One or both of vinethene sodium sulfonate, allyloxy hydroxypropyl azochlorosulfonate acid sodium, vinyl alkyl sodium sulfonate.
The neutralizer is selected from one of triethylamine, tert-butylamine, triethanolamine, diethanol amine.
The polyamine chain extender is selected from diethylenetriamine, triethylene tetramine, tetraethylenepentamine, isophorone diamine, water
Close one or more of hydrazine.
The preparation method of above-mentioned dumb light type water-base polyurethane material the following steps are included:
(1) prepared by performed polymer: macromolecular polyol and small molecule chain extender being added into four-hole boiling flask, stirs evenly, rises
Temperature is cooled to 60 DEG C, is added at one time diisocyanate to 90-100 DEG C of vacuum dehydration 1h, then 2 drop catalyst are added dropwise, stirring,
Then small molecule hydrophilic compounds are added in 75 DEG C of insulation reaction 2h, and 1 drop catalyst is added dropwise, and insulation reaction 2h cools to 50 DEG C
Neutralizer is slowly added dropwise below, stirs evenly to get Waterborne Polyurethane Prepolymer；
(2) prepared by anion emulsifier aqueous solution: taking anion emulsifier to be dissolved in deionized water, stirs evenly, i.e.,
Obtain anion emulsifier aqueous solution；
(3) performed polymer dispersion and chain extension: Waterborne Polyurethane Prepolymer is quickly poured into anion emulsifier aqueous solution, fastly
Speed stirring is dispersed in performed polymer in water, and polyamine chain extender is added after 0.5h, stirs evenly, obtains uniform, stable, grain
Diameter is distributed wide aqueous polyurethane emulsion.
The beneficial effects of the present invention are:
(1) dumb light type water-base polyurethane material provided by the invention is by way of self-emulsifying and additional emulsifier, so that
Emulsion particle diameter distribution is wide, and wherein self-emulsifying particle diameter distribution is in 50-150nm, and outer emulsification particle diameter distribution is in 100-600nm；Partial size is not
It is different with the reflection to light, size uniform particle sizes distribution, lotion as water paint in use, due to partial size difference,
It is different to the reflection angle of incident light after film forming, optical uneven sliding surface is formed, it is dumb light that naked eyes, which watch film surface,.
(3) additional delustering agent is not needed using dumb light type water-base polyurethane material prepared by the present invention, avoids that " whiten hair
Huang " phenomenon, safety and environmental protection, emulsion property are stablized；And made dumb light type water-base polyurethane material has excellent mechanical performance
With rub resistance, water resistance, it is provided simultaneously with dumb light performance, can be widely applied to water paint.
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
Each raw material is weighed according to following table.
The preparation of dumb light type water-base polyurethane material:
(1) prepared by performed polymer: macromolecular polyol and small molecule chain extender being added into four-hole boiling flask, stirs evenly, rises
Temperature is cooled to 60 DEG C, is added at one time diisocyanate to 90-100 DEG C of vacuum dehydration 1h, then 2 drop catalyst are added dropwise, stirring,
Then small molecule hydrophilic compounds are added in 75 DEG C of insulation reaction 2h, and 1 drop catalyst is added dropwise, and insulation reaction 2h cools to 50 DEG C
Neutralizer is slowly added dropwise below, stirs evenly to get Waterborne Polyurethane Prepolymer；
(2) prepared by anion emulsifier aqueous solution: taking anion emulsifier to be dissolved in deionized water, stirs evenly, i.e.,
Obtain anion emulsifier aqueous solution；
(3) performed polymer dispersion and chain extension: Waterborne Polyurethane Prepolymer is quickly poured into anion emulsifier aqueous solution, fastly
Speed stirring is dispersed in performed polymer in water, and polyamine chain extender is added after 0.5h, stirs evenly, obtains uniform, stable, grain
Diameter is distributed wide aqueous polyurethane emulsion.
Embodiment 2
Each raw material is weighed according to following table.
The preparation method is the same as that of Example 1 for the present embodiment dumb light type water-base polyurethane material.
Embodiment 3
Each raw material is weighed according to following table.
| Raw material | Dosage/part |
| Diisocyanate IPDI | 28 |
| Polycarbonate polyol PCD | 42 |
| 1,4 butanediol BDO | 1.5 |
| Trimethylolpropane TMP | 1 |
| Dihydromethyl propionic acid DMBA | 1.7 |
| Dibutyl tin dilaurate | 0.3 |
| Vinyl alkyl sodium sulfonate JS-20 | 1.0 |
| Deionized water | 144 |
| Triethanolamine | 1.7 |
| Hydrazine hydrate | 3 |
The preparation method is the same as that of Example 1 for the present embodiment dumb light type water-base polyurethane material.
Reference examples 1
Based on embodiment 1, the reference examples 1 of not additional anion emulsifier are set.
Each raw material is weighed according to following table.
| Raw material | Dosage/part |
| Diisocyanate TDI | 25 |
| Polytetrahydrofuran ethoxylated polyhydric alcohol PTMG | 45 |
| Trimethylolpropane TMP | 1.4 |
| Dihydromethyl propionic acid DMPA | 2 |
| Dibutyl tin dilaurate | 0.3 |
| Deionized water | 166 |
| Triethylamine | 1.5 |
| Diethylenetriamine DETA | 3 |
The preparation of water-base polyurethane material:
(1) prepared by performed polymer: macromolecular polyol and small molecule chain extender being added into four-hole boiling flask, stirs evenly, rises
Temperature is cooled to 60 DEG C, is added at one time diisocyanate to 90-100 DEG C of vacuum dehydration 1h, then 2 drop catalyst are added dropwise, stirring,
Then small molecule hydrophilic compounds are added in 75 DEG C of insulation reaction 2h, and 1 drop catalyst is added dropwise, and insulation reaction 2h cools to 50 DEG C
Neutralizer is slowly added dropwise below, stirs evenly to get Waterborne Polyurethane Prepolymer；
(2) performed polymer dispersion and chain extension: Waterborne Polyurethane Prepolymer is quickly poured into deionization aqueous, quickly stirring makes
Performed polymer is dispersed in water, and polyamine chain extender is added after 0.5h, is stirred evenly, and obtains that uniform, stable, particle diameter distribution is wide
Aqueous polyurethane emulsion.
Reference examples 2
Based on embodiment 1, not additional anion emulsifier is set but adds the control of delustering agent fumed silica
Example 2, delustering agent additive amount is 5%.
The raw material in addition to delustering agent is weighed according to following table, and calculates delustering agent dosage.
| Raw material | Dosage/part |
| Diisocyanate TDI | 25 |
| Polytetrahydrofuran ethoxylated polyhydric alcohol PTMG | 45 |
| Trimethylolpropane TMP | 1.4 |
| Dihydromethyl propionic acid DMPA | 2 |
| Dibutyl tin dilaurate | 0.3 |
| Deionized water | 166 |
| Triethylamine | 1.5 |
| Diethylenetriamine DETA | 3 |
The preparation of dumb light type water-base polyurethane material:
(1) prepared by performed polymer: macromolecular polyol and small molecule chain extender being added into four-hole boiling flask, stirs evenly, rises
Temperature is cooled to 60 DEG C, is added at one time diisocyanate to 90-100 DEG C of vacuum dehydration 1h, then 2 drop catalyst are added dropwise, stirring,
Then small molecule hydrophilic compounds are added in 75 DEG C of insulation reaction 2h, and 1 drop catalyst is added dropwise, and insulation reaction 2h cools to 50 DEG C
Neutralizer is slowly added dropwise below, stirs evenly to get Waterborne Polyurethane Prepolymer；
(2) prepared by delustering agent aqueous solution: cancelling photo etching and is scattered in deionized water, stirs evenly water-soluble to get delustering agent
Liquid；
(3) performed polymer dispersion and chain extension: Waterborne Polyurethane Prepolymer is quickly poured into delustering agent aqueous solution, is quickly stirred
It is dispersed in performed polymer in water, polyamine chain extender is added after 0.5h, stir evenly, obtain uniform, stable, particle diameter distribution
Wide aqueous polyurethane emulsion.
Reference examples 3
Based on reference examples 2, delustering agent additive amount is set as 4%, remaining condition is constant.
Embodiment 4
It is utilized respectively embodiment 1, embodiment 2, embodiment 3, reference examples 1, reference examples 2 and prepares aqueous polyurethane emulsion, survey
The storage stability of fixed made aqueous polyurethane emulsion；And made aqueous polyurethane emulsion is sprayed at by identical spraying process
On same batch of workpiece of same material, 5 μm of coating layer thickness, the property data of formed coating is measured, as shown in table 1.
The service performance of the 1 made aqueous polyurethane emulsion of the present invention of table
| Group | 18 DEG C of storage stabilities | 60 ° of glossiness | Adhesive force | Pencil hardness | 25 DEG C of water resistances |
| Embodiment 1 | > 12 months | 11 | 0 grade | 2H | > 7d |
| Embodiment 2 | > 12 months | 11 | 0 grade | 2H | > 7d |
| Embodiment 3 | > 12 months | 10 | 0 grade | 2H | > 7d |
| Reference examples 1 | 6-12 months | 15 | 1 grade | 1H | > 7d |
| Reference examples 2 | < 6 months | 19 | 2 grades | HB | < 7d |
| Reference examples 3 | < 6 months | 32 | 2 grades | HB | < 7d |
As shown in Table 1, the made aqueous polyurethane emulsion formation when the additive amount of delustering agent fumed silica is 5%
Coating just has a matte effect, but its matte effect is still not so good as embodiment 1-3, and the adhesive force of its coating, hardness and water-fast
The storage stability of property and lotion is all not so good as embodiment 1-3.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of dumb light type water-base polyurethane material, it is characterised in that: solid content 30%-40%, by the original of following parts by weight
Material is made:
20-30 parts of diisocyanate, 40-50 parts of macromolecular polyol, 1.2-3 parts of small molecule chain extender, the hydrophilic chemical combination of small molecule
1-2.5 parts of object, 0.2-0.4 parts of catalyst, 0.7-1.4 parts of anion emulsifier, 131-170 parts of deionized water, neutralizer 0.7-2
Part, 3-5 parts of polyamine chain extender.
2. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the diisocyanate is selected from first
Phenylene diisocyanate TDI, isophorone diisocyanate IPDI, the own diisocyanate of methyl diphenylene diisocyanate MDI, 1,6-
Ester HDI, benzene dimethylene diisocyanate XDI, naphthalene -1,5- diisocyanate NDI, polymethylene multi-phenenyl isocyanate PAPI
One or both of.
3. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the macromolecular polyol is selected from
Polycaprolactone polyol PCL, polycarbonate polyol PCD, polytetrahydrofuran ethoxylated polyhydric alcohol PTMG, polyethylene glycol PEG, polycyclic oxygen
One or more of oxide polyol PPG.
4. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the small molecule chain extender is selected from
Ethylene glycol, diglycol, 1,4- butanediol, 2,3- butanediol, 2- methyl-1,3 propylene glycol, 1,6-HD, new penta 2
One or both of alcohol, diethylene glycol (DEG), glycerol, trimethylolpropane, hydroxymethyl-cyclohexane.
5. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the small molecule hydrophilic compounds
Selected from one or more of dihydromethyl propionic acid, dimethylolpropionic acid, dimethylol pentanoic acid, dihydroxymethyl octanoic acid.
6. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the catalyst is selected from two laurels
One of sour dibutyl tin, isooctyl acid bismuth, bismuth neodecanoate, bismuth naphthenate, lauric acid bismuth.
7. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the anion emulsifier is selected from
Dodecyl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, polyoxyethylene fatty alkyl ether sulfonate, allyloxy hydroxypropyl sulphur
One or both of sour sodium, vinyl alkyl sodium sulfonate.
8. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the neutralizer is selected from three second
One of amine, tert-butylamine, triethanolamine, diethanol amine.
9. dumb light type water-base polyurethane material according to claim 1, it is characterised in that: the polyamine chain extender is selected from
One or more of diethylenetriamine, triethylene tetramine, tetraethylenepentamine, isophorone diamine, hydrazine hydrate.
10. the preparation method of any one of -9 dumb light type water-base polyurethane materials according to claim 1, which is characterized in that including
Following steps:
(1) prepared by performed polymer: macromolecular polyol and small molecule chain extender being added into four-hole boiling flask, stirs evenly, is warming up to
90-100 DEG C of vacuum dehydration 1h, is cooled to 60 DEG C, is added at one time diisocyanate, then 2 drop catalyst are added dropwise, stirring, and 75 DEG C
Then small molecule hydrophilic compounds are added in insulation reaction 2h, and 1 drop catalyst is added dropwise, and insulation reaction 2h cools to 50 DEG C or less
Neutralizer is slowly added dropwise, stirs evenly to get Waterborne Polyurethane Prepolymer；
(2) prepared by anion emulsifier aqueous solution: taking anion emulsifier to be dissolved in deionized water, stirs evenly to get yin
Ionic emulsifying agent aqueous solution；
(3) performed polymer dispersion and chain extension: Waterborne Polyurethane Prepolymer is quickly poured into anion emulsifier aqueous solution, is quickly stirred
Mixing is dispersed in performed polymer in water, and polyamine chain extender is added after 0.5h, stirs evenly, and obtains uniform, stable, partial size point
The wide aqueous polyurethane emulsion of cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578170.6A CN108997559A (en) | 2018-06-07 | 2018-06-07 | A kind of dumb light type water-base polyurethane material and preparation method thereof |
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Cited By (10)
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| CN111154391A (en) * | 2020-01-15 | 2020-05-15 | 齐河力厚化工有限公司 | High-temperature-resistant self-extinction polyurethane surface treating agent and preparation method and application thereof |
| CN111303374A (en) * | 2020-04-02 | 2020-06-19 | 上海应用技术大学 | Brominated soybean oil modified pure water-based polyurethane nano-emulsion and preparation method thereof |
| CN111471390A (en) * | 2020-04-07 | 2020-07-31 | 东莞市凯成环保科技有限公司 | Antibacterial and grease-resistant coating for plastic surface and preparation method thereof |
| CN112940215A (en) * | 2021-02-02 | 2021-06-11 | 新疆蓝山屯河高端新材料工程技术研究中心(有限公司) | Single-component waterborne polyurethane emulsion and preparation method thereof |
| CN113881333A (en) * | 2021-10-20 | 2022-01-04 | 埃飞灵卫浴科技集团有限公司 | High-skin-affinity matte coating, preparation method and high-skin-affinity matte bathtub |
| CN114075322A (en) * | 2020-08-18 | 2022-02-22 | 上海名邦橡胶制品有限公司 | Waterborne polyurethane resin emulsion and preparation method thereof |
| CN114276519A (en) * | 2021-12-27 | 2022-04-05 | 安徽匠星联创新材料科技有限公司 | Self-extinction waterborne polyurethane and preparation method thereof |
| CN114920905A (en) * | 2022-05-12 | 2022-08-19 | 苏州博大永旺新材股份有限公司 | Water-based polyurethane matte resin and preparation method and application thereof |
| CN115612058A (en) * | 2022-12-19 | 2023-01-17 | 潍坊弘润新材料有限公司 | Fluorine-containing boron-containing waterborne polyurethane material and preparation method thereof |
| CN117186756A (en) * | 2023-09-05 | 2023-12-08 | 重庆广仁能源装备股份有限公司 | Matte coating and surface treatment method for railway contact net support column by using same |
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| CN111154391A (en) * | 2020-01-15 | 2020-05-15 | 齐河力厚化工有限公司 | High-temperature-resistant self-extinction polyurethane surface treating agent and preparation method and application thereof |
| CN111154391B (en) * | 2020-01-15 | 2021-07-30 | 齐河力厚化工有限公司 | High-temperature-resistant self-extinction polyurethane surface treating agent and preparation method and application thereof |
| CN111303374A (en) * | 2020-04-02 | 2020-06-19 | 上海应用技术大学 | Brominated soybean oil modified pure water-based polyurethane nano-emulsion and preparation method thereof |
| CN111471390A (en) * | 2020-04-07 | 2020-07-31 | 东莞市凯成环保科技有限公司 | Antibacterial and grease-resistant coating for plastic surface and preparation method thereof |
| CN114075322A (en) * | 2020-08-18 | 2022-02-22 | 上海名邦橡胶制品有限公司 | Waterborne polyurethane resin emulsion and preparation method thereof |
| CN112940215A (en) * | 2021-02-02 | 2021-06-11 | 新疆蓝山屯河高端新材料工程技术研究中心(有限公司) | Single-component waterborne polyurethane emulsion and preparation method thereof |
| CN113881333A (en) * | 2021-10-20 | 2022-01-04 | 埃飞灵卫浴科技集团有限公司 | High-skin-affinity matte coating, preparation method and high-skin-affinity matte bathtub |
| CN114276519A (en) * | 2021-12-27 | 2022-04-05 | 安徽匠星联创新材料科技有限公司 | Self-extinction waterborne polyurethane and preparation method thereof |
| CN114276519B (en) * | 2021-12-27 | 2023-09-22 | 安徽匠星联创新材料科技有限公司 | Self-extinction waterborne polyurethane and preparation method thereof |
| CN114920905A (en) * | 2022-05-12 | 2022-08-19 | 苏州博大永旺新材股份有限公司 | Water-based polyurethane matte resin and preparation method and application thereof |
| CN115612058A (en) * | 2022-12-19 | 2023-01-17 | 潍坊弘润新材料有限公司 | Fluorine-containing boron-containing waterborne polyurethane material and preparation method thereof |
| CN115612058B (en) * | 2022-12-19 | 2023-03-17 | 潍坊弘润新材料有限公司 | Fluorine-containing boron-containing waterborne polyurethane material and preparation method thereof |
| CN117186756A (en) * | 2023-09-05 | 2023-12-08 | 重庆广仁能源装备股份有限公司 | Matte coating and surface treatment method for railway contact net support column by using same |
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Application publication date: 20181214 |