CN106750087A - The preparation method of Graphene Waterborne PU Composite - Google Patents
The preparation method of Graphene Waterborne PU Composite Download PDFInfo
- Publication number
- CN106750087A CN106750087A CN201611160629.8A CN201611160629A CN106750087A CN 106750087 A CN106750087 A CN 106750087A CN 201611160629 A CN201611160629 A CN 201611160629A CN 106750087 A CN106750087 A CN 106750087A
- Authority
- CN
- China
- Prior art keywords
- degree
- graphene
- preparation
- composite
- waterborne
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 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
- 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
-
- 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
-
- 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
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The preparation method of Graphene Waterborne PU Composite of the present invention is related to polyurethane industrial field, and in particular to the preparation method of Graphene Waterborne PU Composite, comprises the following steps:The preparation of graphene oxide, 230mL sulfuric acid is added in dry beaker, it is placed in ice-water bath, 5g graphite and 5g sodium nitrate is added under magnetic stirring, is sufficiently mixed it, it is then slowly added into 30g potassium permanganate, after less than 10 degree are continued to stir 2h, 30min is stirred in continuation in moving into 35 degree of tepidariums, and 200mL distilled water is added dropwise, 90 degree are then heated to, continues stirring reaction 30min;Reaction solution is diluted to 1000mL with distilled water, it is subsequently added 30g hydrogen peroxide, filter while hot, filter residue is respectively with 5% hydrochloric acid and deionized water cyclic washing until aqueous ph value is 6.8 7.2, dried in 45 degree of drying casees, graphite oxide powder is obtained after grinding sieving, 150mg graphite oxide powder is taken and is placed in wide-mouth bottle;The present invention is simple to operate, convenient processing, and with preferable stability, it is functional, it is ensured that safe and reliable.
Description
Technical field
The present invention relates to polyurethane industrial field, and in particular to the preparation method of Graphene-Waterborne PU Composite.
Background technology
Graphene is a kind of novel nano material of the individual layer bi-dimensional cellular shape lattice structure tightly packed by carbon atom
Material, with the performance such as excellent carrier transport factor, thermal conductivity and electrical conductivity, high intensity, in electronics, the energy, material and biological doctor
The aspects such as medicine have important application value.The preparation method of Graphene is broadly divided into graphite oxide reducing process, mechanical stripping
Method, chemical vapour deposition technique, epitaxial growth method etc., wherein graphite oxide reducing process are that graphite first is obtained into edge through chemical oxidation
Containing carboxyl, carbonyl, zone line hydroxyl, the graphite oxide of epoxy radicals, then by mechanical stripping, obtain monatomic thickness
The graphene oxide of degree, further reduction can prepare Graphene.Graphite oxide reducing process is to prepare Graphene at present the most
Extensive method.
Because graphenic surface is in chemical inertness, Van der Waals force is strong between lamella, easily produces aggregation.Function is carried out to it
It is to study the important topic of Graphene at present to change modification to improve dispersiveness.Isocyanates has very active reactivity,
Can be chemically reacted with hydroxyl, carboxyl, epoxy radicals etc., therefore be widely used in preparing the function containing closing NCO group
Graphite alkene.
The content of the invention
It is a kind of simple to operate present invention aim at providing, convenient processing, and with preferable stability, it is functional,
Ensure the preparation method of safe and reliable Graphene-Waterborne PU Composite.
The preparation method of Graphene-Waterborne PU Composite of the present invention, comprises the following steps:
The first step, the preparation of graphene oxide
230mL sulfuric acid is added in dry beaker, is placed in ice-water bath, 5g graphite and 5g nitric acid are added under magnetic stirring
Sodium, is sufficiently mixed it, is then slowly added into 30g potassium permanganate, after less than 10 degree are continued to stir 2h, in 35 degree of tepidariums of immigration
Continue to stir 30min, 200mL distilled water is added dropwise, then heat to 90 degree, continue stirring reaction 30min;To be reacted with distilled water
Liquid is diluted to 1000mL, is subsequently added 30g hydrogen peroxide, filters while hot, filter residue respectively with 5% hydrochloric acid and deionized water repeatedly
Washing is 6.8-7.2 up to aqueous ph value, is dried in 45 degree of drying casees, and graphite oxide powder is obtained after grinding sieving, is taken
150mg graphite oxide powder is placed in wide-mouth bottle, and the DMF for adding 50mL dewater treatments to cross, ultrasonic disperse is obtained
It is the graphene oxide solution of 3g/L to concentration;
Second step, the preparation of semiclosed toluene di-isocyanate(TDI)
The N for adding 100g toluene di-isocyanate(TDI)s and 50mL dewater treatments to cross in dry there-necked flask, N- dimethyl formyls
Amine, is placed in ice-water bath, starts that methyl ethyl ketoxime 0.5g is added dropwise when solution temperature in bottle is down to 0 degree;Protected all the time during dropwise addition
Hold solution temperature in bottle and be no more than 5 degree, continue to stir after completion of dropping, stop stirring when NCO mass fractions reach 10-12%
Mix, semiclosed toluene di-isocyanate(TDI), Cord blood is stand-by during material sealing is deposited in into refrigerator;
3rd step, the preparation of the functionalization graphene containing closing NCO group
The DMF solution for taking dissolving 150mg graphene oxides is placed in four-hole boiling flask, adds 2g above-mentioned half to seal
Toluene di-isocyanate(TDI) is closed, 50 degree of 100 degree of holding 24h of hydrazine hydrate for keeping addition 1mL after 72h are washed and are centrifuged with acetone, instead
Multiple operation, until the acetone soln of wash-out is evaporated rear noresidue material, prepares the functionalization graphene containing closing NCO group,
To contain closing NCO group functionalization graphene put 45 degree of vacuum drying in dry 48h, in depositing in drier after pulverizing
It is standby;
4th step, the preparation of Graphene-Waterborne PU Composite dispersion liquid and glued membrane
Poly adipate succinic acid ester is down to room temperature after dewater treatment 1-1.5h under the conditions of 120 degree, -0.09MPa, different Buddhist is added
That ketone diisocyanate, Isosorbide-5-Nitrae butanediol, dihydromethyl propionic acid, the pyrrolidones of 1 methyl 2,3h is reacted after being warming up to 80 degree,
Be added dropwise 3 with glue head dropper again and drip dibutyl tin laurates, continue stirring reaction 1h, then reduce temperature to 30-35 spend when, plus
Enter the functionalization graphene containing closing NCO group, add triethylamine to neutralize after stirring reaction 30min, continue to stir 5min, so
Add the dispersion of deionized water high speed shear afterwards, add ethylenediamine, continue to stir 10h, filter Graphene-aqueous polyurethane is multiple
Condensation material dispersion liquid;The dispersion liquid is placed in mould, and drying is solidified in 80 degree of drying boxes, prepares Graphene-aqueous polyurethane
Composite glued membrane.
Preferably, mould is Teflon mould.
The present invention is simple to operate, convenient processing, and with preferable stability, it is functional, it is ensured that safe and reliable.
Specific embodiment
Embodiment one:
The preparation method of Graphene-Waterborne PU Composite of the present invention, comprises the following steps:
The first step, the preparation of graphene oxide
230mL sulfuric acid is added in dry beaker, is placed in ice-water bath, 5g graphite and 5g nitric acid are added under magnetic stirring
Sodium, is sufficiently mixed it, is then slowly added into 30g potassium permanganate, after less than 10 degree are continued to stir 2h, in 35 degree of tepidariums of immigration
Continue to stir 30min, 200mL distilled water is added dropwise, then heat to 90 degree, continue stirring reaction 30min;To be reacted with distilled water
Liquid is diluted to 1000mL, is subsequently added 30g hydrogen peroxide, filters while hot, filter residue respectively with 5% hydrochloric acid and deionized water repeatedly
Washing is 6.8-7.2 up to aqueous ph value, is dried in 45 degree of drying casees, and graphite oxide powder is obtained after grinding sieving, is taken
150mg graphite oxide powder is placed in wide-mouth bottle, and the DMF for adding 50mL dewater treatments to cross, ultrasonic disperse is obtained
It is the graphene oxide solution of 3g/L to concentration;
Second step, the preparation of semiclosed toluene di-isocyanate(TDI)
The N for adding 100g toluene di-isocyanate(TDI)s and 50mL dewater treatments to cross in dry there-necked flask, N- dimethyl formyls
Amine, is placed in ice-water bath, starts that methyl ethyl ketoxime 0.5g is added dropwise when solution temperature in bottle is down to 0 degree;Protected all the time during dropwise addition
Hold solution temperature in bottle and be no more than 5 degree, continue to stir after completion of dropping, stop stirring when NCO mass fractions reach 10-12%
Mix, semiclosed toluene di-isocyanate(TDI), Cord blood is stand-by during material sealing is deposited in into refrigerator;
3rd step, the preparation of the functionalization graphene containing closing NCO group
The DMF solution for taking dissolving 150mg graphene oxides is placed in four-hole boiling flask, adds 2g above-mentioned half to seal
Toluene di-isocyanate(TDI) is closed, 50 degree of 100 degree of holding 24h of hydrazine hydrate for keeping addition 1mL after 72h are washed and are centrifuged with acetone, instead
Multiple operation, until the acetone soln of wash-out is evaporated rear noresidue material, prepares the functionalization graphene containing closing NCO group,
To contain closing NCO group functionalization graphene put 45 degree of vacuum drying in dry 48h, in depositing in drier after pulverizing
It is standby;
4th step, the preparation of Graphene-Waterborne PU Composite dispersion liquid and glued membrane
Poly adipate succinic acid ester is down to room temperature after dewater treatment 1-1.5h under the conditions of 120 degree, -0.09MPa, different Buddhist is added
That ketone diisocyanate, Isosorbide-5-Nitrae butanediol, dihydromethyl propionic acid, the pyrrolidones of 1 methyl 2,3h is reacted after being warming up to 80 degree,
Be added dropwise 3 with glue head dropper again and drip dibutyl tin laurates, continue stirring reaction 1h, then reduce temperature to 30-35 spend when, plus
Enter the functionalization graphene containing closing NCO group, add triethylamine to neutralize after stirring reaction 30min, continue to stir 5min, so
Add the dispersion of deionized water high speed shear afterwards, add ethylenediamine, continue to stir 10h, filter Graphene-aqueous polyurethane is multiple
Condensation material dispersion liquid;The dispersion liquid is placed in mould, and drying is solidified in 80 degree of drying boxes, prepares Graphene-aqueous polyurethane
Composite glued membrane.
Embodiment two:
The preparation method of Graphene-Waterborne PU Composite of the present invention, it is characterised in that comprise the following steps:
The first step, the preparation of graphene oxide
230mL sulfuric acid is added in dry beaker, is placed in ice-water bath, 5g graphite and 5g nitric acid are added under magnetic stirring
Sodium, is sufficiently mixed it, is then slowly added into 30g potassium permanganate, after less than 10 degree are continued to stir 2h, in 35 degree of tepidariums of immigration
Continue to stir 30min, 200mL distilled water is added dropwise, then heat to 90 degree, continue stirring reaction 30min;To be reacted with distilled water
Liquid is diluted to 1000mL, is subsequently added 30g hydrogen peroxide, filters while hot, filter residue respectively with 5% hydrochloric acid and deionized water repeatedly
Washing is 6.8-7.2 up to aqueous ph value, is dried in 45 degree of drying casees, and graphite oxide powder is obtained after grinding sieving, is taken
150mg graphite oxide powder is placed in wide-mouth bottle, and the DMF for adding 50mL dewater treatments to cross, ultrasonic disperse is obtained
It is the graphene oxide solution of 3g/L to concentration;
Second step, the preparation of semiclosed toluene di-isocyanate(TDI)
The N for adding 100g toluene di-isocyanate(TDI)s and 50mL dewater treatments to cross in dry there-necked flask, N- dimethyl formyls
Amine, is placed in ice-water bath, starts that methyl ethyl ketoxime 0.5g is added dropwise when solution temperature in bottle is down to 0 degree;Protected all the time during dropwise addition
Hold solution temperature in bottle and be no more than 5 degree, continue to stir after completion of dropping, stop stirring when NCO mass fractions reach 10-12%
Mix, semiclosed toluene di-isocyanate(TDI), Cord blood is stand-by during material sealing is deposited in into refrigerator;
3rd step, the preparation of the functionalization graphene containing closing NCO group
The DMF solution for taking dissolving 150mg graphene oxides is placed in four-hole boiling flask, adds 2g above-mentioned half to seal
Toluene di-isocyanate(TDI) is closed, 50 degree of 100 degree of holding 24h of hydrazine hydrate for keeping addition 1mL after 72h are washed and are centrifuged with acetone, instead
Multiple operation, until the acetone soln of wash-out is evaporated rear noresidue material, prepares the functionalization graphene containing closing NCO group,
To contain closing NCO group functionalization graphene put 45 degree of vacuum drying in dry 48h, in depositing in drier after pulverizing
It is standby;
4th step, the preparation of Graphene-Waterborne PU Composite dispersion liquid and glued membrane
Poly adipate succinic acid ester is down to room temperature after dewater treatment 1-1.5h under the conditions of 120 degree, -0.09MPa, different Buddhist is added
That ketone diisocyanate, Isosorbide-5-Nitrae butanediol, dihydromethyl propionic acid, the pyrrolidones of 1 methyl 2,3h is reacted after being warming up to 80 degree,
Be added dropwise 3 with glue head dropper again and drip dibutyl tin laurates, continue stirring reaction 1h, then reduce temperature to 30-35 spend when, plus
Enter the functionalization graphene containing closing NCO group, add triethylamine to neutralize after stirring reaction 30min, continue to stir 5min, so
Add the dispersion of deionized water high speed shear afterwards, add ethylenediamine, continue to stir 10h, filter Graphene-aqueous polyurethane is multiple
Condensation material dispersion liquid;The dispersion liquid is placed in mould, and drying is solidified in 80 degree of drying boxes, prepares Graphene-aqueous polyurethane
Composite glued membrane.
Mould is Teflon mould.
The present invention is simple to operate, convenient processing, and with preferable stability, it is functional, it is ensured that safe and reliable.
Claims (2)
1. a kind of preparation method of Graphene-Waterborne PU Composite, it is characterised in that comprise the following steps:
The first step, the preparation of graphene oxide adds 230mL sulfuric acid in dry beaker, is placed in ice-water bath, is stirred in magnetic force
Lower addition 5g graphite and 5g sodium nitrate are mixed, it is sufficiently mixed, 30g potassium permanganate is then slowly added into, less than 10 degree are continued to stir
After mixing 2h, 30min is stirred in continuation in moving into 35 degree of tepidariums, and 200mL distilled water is added dropwise, and then heats to 90 degree, continues to stir
Reaction 30min;Reaction solution is diluted to 1000mL with distilled water, 30g hydrogen peroxide is subsequently added, filtered while hot, filter residue is used respectively
5% hydrochloric acid and deionized water cyclic washing is 6.8-7.2 up to aqueous ph value, is dried in 45 degree of drying casees, grinding sieving
After obtain graphite oxide powder, take 150mg graphite oxide powder and be placed in wide-mouth bottle, add 50mL the dewater treatments N, N- bis- that cross
NMF, ultrasonic disperse obtains the graphene oxide solution that concentration is 3g/L;
Second step, the preparation of semiclosed toluene di-isocyanate(TDI) adds 100g toluene diisocynates in dry there-necked flask
The DMF that ester and 50mL dewater treatments are crossed, is placed in ice-water bath, starts when solution temperature in bottle is down to 0 degree
Methyl ethyl ketoxime 0.5g is added dropwise;Remain that solution temperature is no more than 5 degree in bottle during dropwise addition, continue to stir after completion of dropping,
Stop stirring when NCO mass fractions reach 10-12%, material sealing is deposited in refrigerator by semiclosed toluene di-isocyanate(TDI)
Middle Cord blood is stand-by;
3rd step, the preparation of the functionalization graphene containing closing NCO group, takes the N of dissolving 150mg graphene oxides, N- diformazans
Base formamide solution is placed in four-hole boiling flask, adds the above-mentioned semiclosed toluene di-isocyanate(TDI)s of 2g, and 50 degree keep addition after 72h
100 degree of holding 24h of hydrazine hydrate of 1mL, are washed and are centrifuged with acetone, are operated repeatedly, until the acetone soln of wash-out is evaporated rear nothing
Residuals, prepare the functionalization graphene containing closing NCO group, and the functionalization graphene containing closing NCO group is put into 45
48h is dried in degree vacuum drying, is deposited in after pulverizing standby in drier;
4th step, the preparation of Graphene-Waterborne PU Composite dispersion liquid and glued membrane, poly adipate succinic acid ester is existed
120 degree, room temperature is down under the conditions of -0.09MPa after dewater treatment 1-1.5h, add IPDI, Isosorbide-5-Nitrae-fourth two
Alcohol, dihydromethyl propionic acid, 1-Methyl-2-Pyrrolidone, react 3h, then are added dropwise 3 with glue head dropper and drip February after being warming up to 80 degree
Dilaurylate, continue stirring reaction 1h, then reduce temperature to 30-35 spend when, add containing closing NCO group functionalization
Graphene, adds triethylamine to neutralize after stirring reaction 30min, continue to stir 5min, is subsequently adding deionized water high speed shear point
Dissipate, add ethylenediamine, continue to stir 10h, filter to obtain Graphene-Waterborne PU Composite dispersion liquid;The dispersion liquid is put
In mould, drying is solidified in 80 degree of drying boxes, prepare Graphene-Waterborne PU Composite glued membrane.
2. the preparation method of Graphene-Waterborne PU Composite as claimed in claim 1, it is characterised in that the mould
It is Teflon mould.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611160629.8A CN106750087A (en) | 2016-12-15 | 2016-12-15 | The preparation method of Graphene Waterborne PU Composite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611160629.8A CN106750087A (en) | 2016-12-15 | 2016-12-15 | The preparation method of Graphene Waterborne PU Composite |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106750087A true CN106750087A (en) | 2017-05-31 |
Family
ID=58889305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611160629.8A Pending CN106750087A (en) | 2016-12-15 | 2016-12-15 | The preparation method of Graphene Waterborne PU Composite |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106750087A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108251907A (en) * | 2017-12-05 | 2018-07-06 | 重庆石墨烯研究院有限公司 | A kind of High-performance graphene-polyvinyl alcohol composite fiber preparation method |
CN108659199A (en) * | 2018-04-13 | 2018-10-16 | 中国皮革和制鞋工业研究院(晋江)有限公司 | Modified aqueous polyurethane dispersoid and preparation method thereof and vamp finishing agent |
CN109942785A (en) * | 2019-02-26 | 2019-06-28 | 昆山嘉力普制版胶粘剂油墨有限公司 | A kind of preparation method of carboxylated graphene oxide modified carboxylic acid type aqueous polyurethane |
CN110156000A (en) * | 2019-06-04 | 2019-08-23 | 四川恒力盛泰石墨烯科技有限公司 | A kind of Multistage dispersion method of graphene |
CN111057212A (en) * | 2019-12-26 | 2020-04-24 | 江苏舜天新盈轻工业有限公司 | Preparation process of graphene oxide polyurethane sealing foaming adhesive and foaming adhesive |
CN111410905A (en) * | 2020-04-26 | 2020-07-14 | 朱建程 | Functional graphene modified polyurethane conductive anticorrosive coating and preparation method thereof |
CN111484757A (en) * | 2020-04-17 | 2020-08-04 | 连云港杜钟新奥神氨纶有限公司 | Modified graphene oxide and preparation method thereof |
CN111621137A (en) * | 2020-06-22 | 2020-09-04 | 福州大学 | Low-smoke low-toxicity flame-retardant thermoplastic polyurethane composite material and preparation method thereof |
CN114875499A (en) * | 2022-05-16 | 2022-08-09 | 绍兴渠广纺织有限公司 | Composite fiber warp-knitted fabric and preparation process thereof |
CN114907712A (en) * | 2022-06-21 | 2022-08-16 | 浙江云度新材料科技有限公司 | Preparation method of graphene anticorrosive paint |
-
2016
- 2016-12-15 CN CN201611160629.8A patent/CN106750087A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108251907A (en) * | 2017-12-05 | 2018-07-06 | 重庆石墨烯研究院有限公司 | A kind of High-performance graphene-polyvinyl alcohol composite fiber preparation method |
CN108659199A (en) * | 2018-04-13 | 2018-10-16 | 中国皮革和制鞋工业研究院(晋江)有限公司 | Modified aqueous polyurethane dispersoid and preparation method thereof and vamp finishing agent |
CN109942785A (en) * | 2019-02-26 | 2019-06-28 | 昆山嘉力普制版胶粘剂油墨有限公司 | A kind of preparation method of carboxylated graphene oxide modified carboxylic acid type aqueous polyurethane |
CN110156000A (en) * | 2019-06-04 | 2019-08-23 | 四川恒力盛泰石墨烯科技有限公司 | A kind of Multistage dispersion method of graphene |
CN110156000B (en) * | 2019-06-04 | 2022-07-12 | 四川恒力盛泰石墨烯科技有限公司 | Multistage dispersion method of graphene |
CN111057212A (en) * | 2019-12-26 | 2020-04-24 | 江苏舜天新盈轻工业有限公司 | Preparation process of graphene oxide polyurethane sealing foaming adhesive and foaming adhesive |
CN111484757A (en) * | 2020-04-17 | 2020-08-04 | 连云港杜钟新奥神氨纶有限公司 | Modified graphene oxide and preparation method thereof |
CN111484757B (en) * | 2020-04-17 | 2021-10-22 | 连云港杜钟新奥神氨纶有限公司 | Modified graphene oxide and preparation method thereof |
CN111410905A (en) * | 2020-04-26 | 2020-07-14 | 朱建程 | Functional graphene modified polyurethane conductive anticorrosive coating and preparation method thereof |
CN111621137A (en) * | 2020-06-22 | 2020-09-04 | 福州大学 | Low-smoke low-toxicity flame-retardant thermoplastic polyurethane composite material and preparation method thereof |
CN111621137B (en) * | 2020-06-22 | 2021-12-21 | 福州大学 | Low-smoke low-toxicity flame-retardant thermoplastic polyurethane composite material and preparation method thereof |
CN114875499A (en) * | 2022-05-16 | 2022-08-09 | 绍兴渠广纺织有限公司 | Composite fiber warp-knitted fabric and preparation process thereof |
CN114907712A (en) * | 2022-06-21 | 2022-08-16 | 浙江云度新材料科技有限公司 | Preparation method of graphene anticorrosive paint |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106750087A (en) | The preparation method of Graphene Waterborne PU Composite | |
CN106744946B (en) | A kind of shell carbon prepares the processing method of super-active carbon technique and its activation waste liquid | |
CN104529455B (en) | A kind of low temperature preparation method of titanium dioxide/two-dimensional layer titanium carbide composite | |
CN103332678B (en) | The preparation method of Graphene and Graphene-complex oxide | |
CN105366668A (en) | Method for preparing graphene through supercritical fluid | |
CN104609421A (en) | Preparation method of active carbon | |
CN102583335A (en) | Preparation method of graphene uniform dispersion | |
CN103466607A (en) | Graphene-metallic oxide nano-particle three-dimensional porous composite material | |
CN108862257B (en) | Preparation method and device of graphene | |
CN102807212A (en) | Method for preparing graphene at low temperature | |
CN110194441B (en) | Hollow spherical aluminum nitride powder material and preparation method of aluminum nitride porous ceramic | |
CN101456553A (en) | Chemical processing method for preparing high quality inflatable graphite | |
CN109319771A (en) | A kind of preparation method of graphene | |
CN105347340B (en) | The preparation method of graphene oxide | |
CN103818964A (en) | Preparation method for W18O49 ultrafine nanowire | |
CN105932279B (en) | A kind of nano bar-shape V3S4Preparation method and application | |
CN103990484A (en) | Preparation method of nitrogen doped and graphene loaded Cu-Cu2O nanocomposites | |
CN102730664A (en) | Carbon nano-tube with fluorine-containing surface and preparation method thereof | |
CN108483502A (en) | A kind of preparation method and application of rhenium disulfide nanometer sheet | |
CN109809481A (en) | A kind of polyhedral method of titanium dioxide using the preparation of titanium carbide ultrathin nanometer piece with hollow structure | |
CN102730668B (en) | Method for preparing grapheme through solvothermal technique based on aromatic alcohol | |
CN107326655A (en) | A kind of method of carbon fiber surface modification | |
CN104264450A (en) | Silk fabric anti-bacterial finishing agent and preparation method thereof | |
CN106064239B (en) | A kind of hollow anti-type Cu/SiO 2 core shell nanoparticles and preparation method thereof of ringing a bell of high degree of dispersion | |
CN106587033B (en) | A method of preparing graphene |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |