CN106632965A - Graphene-organosilicon modified waterborne polyurethane resin - Google Patents
Graphene-organosilicon modified waterborne polyurethane resin Download PDFInfo
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- CN106632965A CN106632965A CN201611260690.XA CN201611260690A CN106632965A CN 106632965 A CN106632965 A CN 106632965A CN 201611260690 A CN201611260690 A CN 201611260690A CN 106632965 A CN106632965 A CN 106632965A
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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
- C08G18/08—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
-
- 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
- C08G18/40—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
-
- 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
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
Abstract
The invention relates to graphene-organosilicon modified waterborne polyurethane resin. The graphene-organosilicon modified waterborne polyurethane resin is prepared from polyisocyanate, polyol, a polyamine chain extender, oligomeric polyol, dimethylolpropionic acid, organosilicon, dibutyltin dilaurate, graphene, acetone, a neutralizing agent and deionized water through a reaction. The invention provides the graphene-organosilicon modified waterborne polyurethane resin and a preparation method thereof. The graphene-organosilicon modified waterborne polyurethane resin prepared by using the method provided by the invention can be prepared into a one-component waterborne coating, a two-component waterborne coating and a normal-temperature curing coating, has good performances like adhesion force, corrosion resistance, water resistance, alkali resistance, wear resistance, electrostatic resistance and high hardness, is extensively applied to ocean fields, iron components, woodware coatings, antistatic coatings, electric-conductive coatings and antifouling and waterproofing coatings, and has great application potentials.
Description
Technical field
The present invention relates to a kind of preparation method of modified aqueous polyurethane resin, more particularly to a kind of Graphene-organic
Silicone modified waterborne polyurethane resin, belongs to water-base resin synthesis technical field.
Background technology
Polyurethane is formed by oligomer polyol, small molecule polyol, polyisocyanates and chain extender reaction, oligomer
Polyalcohol provides soft segment, and polyisocyanates provides hard segment, and the structure that this soft or hard is combined causes polyurethane both to have height
Elasticity has high rigidity again.Polyurethane has good solvent resistance, wearability and anti-flexibility simultaneously.Thus be widely used
In fields such as coating, adhesive, foamed plastics, ink and rubber, polyurethane can be divided into polyester according to oligomer polyol difference
Type and the class of polyether-type two, under the conditions of outdoor is exposed to the sun, the ageing-resistant of both polyurethane resins, stability to hydrolysis resistance are all relatively
Difference.Simultaneously polyurethane also has that impact resistance is not good, wet is easy to foaming, resistance to acids and bases, and general polyurethane is exhausted
Edge is high, is also easy to produce electrostatic so as to be restricted in the application of special dimension.
The content of the invention
Organosilicon polymer resistant of high or low temperature is excellent, UV resistant, resistance to oxidation degraded, with low-surface-energy and thin well
It is aqueous.Due to not containing Si-O keys in common polyurethane resin structure, and possess the high bond energys of Si-O in silicone molecules, its Si-O
The firmness of key will be far above C-C, C-O key.The present invention introduces organosilicon in polyurethane resin, with organic-silicon-modified poly- ammonia
Ester resin can improve its low-temperature flexibility, heat endurance, resistance to bond, hydrophobicity, ageing-resistant and antioxidative stabilizer etc..Through
Organic-silicon-modified polyurethane elastomer, will not fade, harden, feel like jelly etc. because the environment such as outdoor high and low temperature weather change shows
As even if still can for a long time keep its gay colours under the climatic environments such as intensive ultraviolet, ozone, rainwater and high temperature difference, outward
See that architectural feature is permanent stablizes constant, its anti-wear performance meets the needs of long-term high usage frequency.
It is one kind by individual layer sp that graphite is dilute2The two-dimensional sheet material of hydbridized carbon atoms composition, its special structures shape
It has peculiar electric property, good mechanical property, excellent physical and mechanical properties and a gas barrier property, therefore
Prepare lightweight, low cost, high-performance composite materials aspect and there is wide application potential, scientist even foretells that Graphene will
" thoroughly changing 21 century ".
Via being prepared into graphite oxide after strong oxidizer oxidation, oxidized graphite flake layer contains substantial amounts of oxygen-containing pole to graphite
Property group, such as hydroxyl, carboxyl, epoxy radicals, with higher specific surface area.Graphene meets with through oxidation, its π-pi-conjugated structure
Destruction is arrived, intermolecular Van der Waals force is weak compared with Graphene, and lamella is easily peeled off, therefore graphene oxide is easily in the aqueous solution
In fully peel away, formed stable homogeneous graphene oxide water solution, this is provided for Graphene modified aqueous polyurethane resin
Natural endowment.
The present invention is reacted using the hydroxyl on graphene oxide and organosilicon with isocyano, taken into account Graphene and
The property of organosilicon, effectively improves the mechanical strength of polyurethane resin material, resistance to water, heat resistance, solvent resistant, resistance to
Ultraviolet, resistance to oxidation degraded and insulation are also easy to produce the performances such as electrostatic.
The present invention introduces organosilicon in polyurethane resin and is modified on molecular structure, modified polyurethane resin tool
The performances such as the weatherability, UV resistant and the resistance to ozone that have had；Change while Graphene being introduced on polyurethane resin and carrying out chemistry
Property so as to good electric conductivity and antistatic performance, and Graphene is connected with polyurethane by chemical bond, effectively solving
The problems such as aggregation being also easy to produce during physical mixed and is settled.
The purpose of the present invention aims to provide a kind of Graphene-organosilicon modified aqueous polyurethane resin.
Another object of the present invention is to provide a kind of preparation side of Graphene-organosilicon modified aqueous polyurethane resin
Method.
In order to solve technical problem described above, the present invention takes technical scheme below：The present invention relates to a kind of graphite
Alkene-organosilicon modified aqueous polyurethane resin, by weight percentage, consisting of：It is 8.0～22.0 parts of polyisocyanates, many
2.0～7.0 parts of first alcohol, 0.5～2.0 part of polynary amine chain extender, 4.0～12.0 parts of oligomer polyol, dihydromethyl propionic acid
1.5～4.5 parts, 1.0～5.0 parts of organosilicon, 0.01～0.1 part of dibutyl tin laurate, 0.5～2.5 part of Graphene, acetone
4.0～10.0 parts, 1.0～3.0 parts of nertralizer, 48.0～68.0 parts of deionized water.
Described polyalcohol is ethylene glycol, propane diols, butanediol, hexylene glycol, neopentyl glycol, Diethylene Glycol, a contracting
DPG, 2-butyl-2-ethyl-1,3-propanediol, 2,4- diethyl -1,5- pentanediols, 2- ethyl -1,3- hexylene glycols, three
The combination of one or more in hydroxymethyl-propane, glycerine, trimethylolethane, pentaerythrite, xylitol, sorbierite.
Described oligomer polyol is polytetrahydrofuran polyol, Merlon of the molecular weight between 1000～4000
In polyalcohol, polycaprolactone polyol, polyethylene oxide polyol, polyether Glycols, polyethylene glycol, polyoxypropylene polyol
The combination of one or more.
Described Graphene be hydroxyl graphene oxide, by Hummers methods, Staudemaier methods, electrochemical process or
It is prepared by Brodie methods；Further, it is the graphene oxide of Hummers methods preparation.
Described organic silicon monomer is hydroxy-end capped dimethyl silicone polymer, the dimethyl silicone polymer of hydroxyl alkyl end-blocking
With the combination of one or more in the dimethyl silicone polymer of hydroxy polyethers end-blocking.
Described nertralizer is the combination of one or more in triethylamine, ammoniacal liquor, dimethylethanolamine.
Described polynary amine chain extender be ethylenediamine, the hydrazine of adipic acid two, hydrazine hydrate, N, N- dihydroxy (diisopropyl) benzene
The combination of one or more in amine.
Described polyisocyanates is toluene di-isocyanate(TDI) TDI, IPDI IPDI, hexa-methylene two
Isocyanates HDI, XDI XDI, cyclohexanedimethyleterephthalate diisocyanate H6XDI, durol two
The combination of one or more in methylene diisocyanate TMXDI.
The preparation method of described Graphene-organosilicon modified aqueous polyurethane resin, comprises the following steps：
A, equipped with thermometer, condenser pipe, four mouthfuls of reactors of agitator, by the percentage by weight of formula, successively plus
Enter polyalcohol, oligomer polyol, Graphene, dihydromethyl propionic acid, be heated to vacuum dehydration 1.5 between 95～110 DEG C
～2.0h；
B, be cooled to 60～70 DEG C addition organosilicons, be added dropwise polyisocyanates, the completion of dropping in 0.5～1h；Then drip
Plus the dibutyl tin laurate of formula ratio, 80～82 DEG C of 2～2.5h of reaction are warming up to, acetone is supplemented depending on system viscosity, determine
Nco value, the terminating reaction when the value for determining is close with Theoretical Design value；
C, continuation stirring cool the temperature to less than 40 DEG C, are slowly added dropwise nertralizer, continue 15～20min of stirring reaction, plus
Enter the water of amount of calculation, continue to stir 15min, add polynary amine chain extender, high-speed stirred to disperse 1h under agitation, then
Stirring at low speed 0.5h, decompression is lower to steam de- acetone, that is, a kind of Graphene-organosilicon modified aqueous polyurethane resin is obtained.
The present invention provide the extremely low Graphene-organosilicon modified aqueous polyurethane resin of a kind of function admirable, VOC content and
Its preparation method.Obtained Graphene-organosilicon modified aqueous polyurethane resin of the invention has good adhesive force, corrosion resistant
The features such as erosion, resistance to water, alkali resistance, wearability, antistatic, high rigidity, be widely used in marine field, iron component, woodwork coating,
Anti-static coatings, electrically-conducting paint, antifouling water-repellent paint, its application potential is all very huge.
Specific embodiment
The application is described in further detail with reference to embodiment.It is understood that tool described herein
Body embodiment is used only for explaining related invention, rather than the restriction to the invention.
Embodiment 1
A kind of Graphene-organosilicon modified aqueous polyurethane resin, its preparation technology is as follows：
A, equipped with thermometer, condenser pipe, four mouthfuls of reactors of agitator, by the percentage by weight of formula, successively plus
Enter 3.0 parts of butanediol, 1.5 parts of trimethylolpropane, 1.5 parts of Graphene, 6.0 parts of polytetrahydrofuran polyol, dihydroxymethyl third
2.6 parts of acid, is heated to 1.5～2.0h of vacuum dehydration between 95～110 DEG C；
B, 2.0 parts of dimethyl silicone polymers for being cooled to 60～70 DEG C of addition hydroxy polyethers end-blockings, are added dropwise hexa-methylene two
16.0 parts of isocyanates, finishes in 0.5～1h is added dropwise；Then 0.05 part of dibutyl tin laurate is added dropwise, it is warming up to 80～
82 DEG C of 2～2.5h of reaction, add 6.0 parts of acetone, determine nco value, the terminating reaction when the value for determining is close with Theoretical Design value；
C, continuation stirring cool the temperature to less than 40 DEG C, are slowly added dropwise 1.9 parts of nertralizer triethylamine, continue stirring reaction 15
～20min, adds 58.25 parts of the water of amount of calculation, continues to stir 15min, 1.2 parts of ethylenediamine is added under agitation, at a high speed
Dispersed with stirring 1h, then stirring at low speed 0.5h, steams de- acetone under decompression, i.e., prepared a kind of Graphene-organic silicon modified aqueous poly-
Urethane resin.
Embodiment 2
A kind of Graphene-organosilicon modified aqueous polyurethane resin, its preparation technology is as follows：
A, equipped with thermometer, condenser pipe, four mouthfuls of reactors of agitator, by the percentage by weight of formula, successively plus
Enter 3.5 parts of butanediol, 2.5 parts of glycerine, 1.5 parts of Graphene, 7.0 parts of polytetrahydrofuran polyol, 2.8 parts of dihydromethyl propionic acid,
It is heated to 1.5～2.0h of vacuum dehydration between 95～110 DEG C；
B, it is cooled to 60～70 DEG C and adds hydroxy-end capped 2.2 parts of dimethyl silicone polymers, the isocyanide of isophorone two is added dropwise
18.0 parts of acid esters, the completion of dropping in 0.5～1h；Then 0.05 part of dibutyl tin laurate is added dropwise, 80～82 DEG C are warming up to
2～2.5h of reaction, adds 7.0 parts of acetone, determines nco value, the terminating reaction when the value for determining is close with Theoretical Design value；
C, continuation stirring cool the temperature to less than 40 DEG C, are slowly added dropwise 2.1 parts of nertralizer triethylamine, continue stirring reaction 10
～20min, adds 52.35 parts of the water of amount of calculation, continues to stir 15min, 1.0 parts of ethylenediamine is added under agitation, at a high speed
Dispersed with stirring 1h, then stirring at low speed 0.5h, steams de- acetone under decompression, i.e., prepared a kind of Graphene-organic silicon modified aqueous poly-
Urethane resin.
Embodiment 3
A kind of Graphene-organosilicon modified aqueous polyurethane resin, its preparation technology is as follows：
A, equipped with thermometer, condenser pipe, four mouthfuls of reactors of agitator, by the percentage by weight of formula, successively plus
Enter 3.2 parts of neopentyl glycol, 1.2 parts of trimethylolpropane, 1.6 parts of Graphene, 5.5 parts of polytetrahydrofuran polyol, dihydroxymethyl
2.4 parts of propionic acid, is heated to 1.5～2.0h of vacuum dehydration between 95～110 DEG C；
B, it is cooled to 60～70 DEG C and adds hydroxy-end capped 2.5 parts of dimethyl silicone polymers, toluene di-isocyanate(TDI) is added dropwise
15.0 parts, in 0.5～1h completion of dropping；Then be added dropwise 0.05 part of dibutyl tin laurate, be warming up to 80～82 DEG C reaction 2～
2.5h, adds 6.5 parts of acetone, determines nco value, the terminating reaction when the value for determining is close with Theoretical Design value；
C, continuation stirring cool the temperature to less than 40 DEG C, are slowly added dropwise 2.0 parts of nertralizer triethylamine, continue stirring reaction 10
～20min, adds 58.45 parts of the water of amount of calculation, continues to stir 15min, 1.6 parts of ethylenediamine is added under agitation, at a high speed
Dispersed with stirring 1h, then stirring at low speed 0.5h, steams de- acetone under decompression, i.e., prepared a kind of Graphene-organic silicon modified aqueous poly-
Urethane resin.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle；People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while also should cover in the case of without departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (7)
1. a kind of Graphene-organosilicon modified aqueous polyurethane resin, it is characterised in that：By weight percentage, consisting of：
8.0～22.0 parts of polyisocyanates, 2.0～7.0 parts of polyalcohol, 0.5～2.0 part of polynary amine chain extender, oligomer polyol
4.0～12.0 parts, 1.5～4.5 parts of dihydromethyl propionic acid, 1.0～5.0 parts of organosilicon, dibutyl tin laurate 0.01～0.1
Part, 0.5～2.5 part of Graphene, 4.0～10.0 parts of acetone, 1.0～3.0 parts of nertralizer, 48.0～68.0 parts of deionized water；
Wherein, described organic silicon monomer is hydroxy-end capped dimethyl silicone polymer, the polydimethylsiloxanes of hydroxyl alkyl end-blocking
The combination of one or more in the dimethyl silicone polymer of alkane and hydroxy polyethers end-blocking；
Described polyisocyanates is toluene di-isocyanate(TDI) TDI, IPDI IPDI, the isocyanide of hexa-methylene two
Acid esters HDI, XDI XDI, cyclohexanedimethyleterephthalate diisocyanate H6XDI, the methylene of durol two
The combination of one or more in group diisocyanate TMXDI；
The hydroxyl oxygen fossil that described Graphene is prepared by Hummers methods, Staudemaier methods, electrochemical process or Brodie methods
Black alkene.
2. a kind of Graphene-organosilicon modified aqueous polyurethane resin as claimed in claim 1, it is characterised in that：Described
Polyalcohol is ethylene glycol, propane diols, butanediol, hexylene glycol, neopentyl glycol, Diethylene Glycol, dipropylene glycol, 2- fourths
It is base -2- ethyl -1,3- propane diols, 2,4- diethyl -1,5- pentanediols, 2- ethyl -1,3- hexylene glycols, trimethylolpropane, sweet
The combination of one or more in oil, trimethylolethane, pentaerythrite, xylitol, sorbierite.
3. a kind of Graphene-organosilicon modified aqueous polyurethane resin as claimed in claim 1, it is characterised in that：Described
Oligomer polyol is polytetrahydrofuran polyol of the molecular weight between 1000～4000, polycarbonate polyol, gathers in oneself
One or more in ester polyol, polyethylene oxide polyol, polyether Glycols, polyethylene glycol, polyoxypropylene polyol
Combination.
4. a kind of Graphene-organosilicon modified aqueous polyurethane resin as claimed in claim 1, it is characterised in that：Described
Graphene is hydroxyl graphene oxide prepared by Hummers methods.
5. a kind of Graphene-organosilicon modified aqueous polyurethane resin as claimed in claim 1, it is characterised in that：Described
Nertralizer is the combination of one or more in triethylamine, ammoniacal liquor, dimethylethanolamine.
6. a kind of Graphene-organosilicon modified aqueous polyurethane resin as claimed in claim 1, it is characterised in that：Described
Polynary amine chain extender be ethylenediamine, the hydrazine of adipic acid two, hydrazine hydrate, N, the one kind or several in N- dihydroxy (diisopropyl) aniline
The combination planted.
7. a kind of a kind of preparation method of Graphene-organosilicon modified aqueous polyurethane resin as claimed in claim 1, it is special
Levy and be：Described preparation method, its preparation technology is as follows：
A, equipped with thermometer, condenser pipe, four mouthfuls of reactors of agitator, by the percentage by weight of formula, sequentially add many
First alcohol, oligomer polyol, Graphene, dihydromethyl propionic acid, be heated to vacuum dehydration 1.5 between 95～110 DEG C～
2.0h；
B, be cooled to 60～70 DEG C addition organosilicons, be added dropwise polyisocyanates, the completion of dropping in 0.5～1h；Then it is added dropwise and matches somebody with somebody
The dibutyl tin laurate of side's amount, is warming up to 80～82 DEG C of 2～2.5h of reaction, and depending on system viscosity acetone is supplemented, and determines NCO
Value, the terminating reaction when the value for determining is close with Theoretical Design value；
C, continuation stirring cool the temperature to less than 40 DEG C, are slowly added dropwise nertralizer, continue stirring reaction 10-20min, add and calculate
The water of amount, continues to stir 15min, adds polynary amine chain extender, high-speed stirred to disperse 1h under agitation, and then low speed is stirred
0.5h is mixed, decompression is lower to steam de- acetone, that is, a kind of Graphene-organosilicon modified aqueous polyurethane resin is obtained.
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|---|---|---|---|---|
| CN109161327A (en) * | 2018-07-11 | 2019-01-08 | 无锡市惠诚石墨烯技术应用有限公司 | Modified urethane water-repellent paint of a kind of graphene oxide and preparation method thereof |
| CN109608610A (en) * | 2018-12-13 | 2019-04-12 | 合众（佛山）化工有限公司 | A kind of graphene modified aqueous polyurethane-epoxy resin and preparation method thereof |
| CN109965412A (en) * | 2019-03-12 | 2019-07-05 | 中红普林（北京）医疗用品高新技术研究院有限公司 | A kind of non-powder PVC gloves and preparation method thereof |
| CN111269378A (en) * | 2020-03-16 | 2020-06-12 | 江门市恒之光环保新材料有限公司 | High-elasticity water-based UV resin and preparation method thereof |
| US11407904B2 (en) | 2019-02-11 | 2022-08-09 | King Fahd University Of Petroleum And Minerals | Waterborne polyurethane containing polyhedral oligomeric silsesquioxane |
| CN114889258A (en) * | 2022-05-11 | 2022-08-12 | 安徽弋尚纺织科技有限公司 | Breathable fabric for protective clothing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109161327A (en) * | 2018-07-11 | 2019-01-08 | 无锡市惠诚石墨烯技术应用有限公司 | Modified urethane water-repellent paint of a kind of graphene oxide and preparation method thereof |
| CN109608610A (en) * | 2018-12-13 | 2019-04-12 | 合众（佛山）化工有限公司 | A kind of graphene modified aqueous polyurethane-epoxy resin and preparation method thereof |
| US11407904B2 (en) | 2019-02-11 | 2022-08-09 | King Fahd University Of Petroleum And Minerals | Waterborne polyurethane containing polyhedral oligomeric silsesquioxane |
| CN109965412A (en) * | 2019-03-12 | 2019-07-05 | 中红普林（北京）医疗用品高新技术研究院有限公司 | A kind of non-powder PVC gloves and preparation method thereof |
| CN109965412B (en) * | 2019-03-12 | 2021-01-19 | 中红普林（北京）医疗用品高新技术研究院有限公司 | Powder-free PVC gloves and preparation method thereof |
| CN111269378A (en) * | 2020-03-16 | 2020-06-12 | 江门市恒之光环保新材料有限公司 | High-elasticity water-based UV resin and preparation method thereof |
| CN114889258A (en) * | 2022-05-11 | 2022-08-12 | 安徽弋尚纺织科技有限公司 | Breathable fabric for protective clothing |
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Application publication date: 20170510 |