CN110407993A - The permeable graphene sponge of oil suction - Google Patents
The permeable graphene sponge of oil suction Download PDFInfo
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- CN110407993A CN110407993A CN201810382976.8A CN201810382976A CN110407993A CN 110407993 A CN110407993 A CN 110407993A CN 201810382976 A CN201810382976 A CN 201810382976A CN 110407993 A CN110407993 A CN 110407993A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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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
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- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- 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
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0058—≥50 and <150kg/m3
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Abstract
A kind of permeable graphene sponge of oil suction, comprising one by the reacted made sponge main body of the constituent containing A agent, polyisocyanate compound and graphene.A agent includes polyol blends, foaming agent, surfactant and catalyst.Polyol blends contain: the first polyol component of the content range 50 of hydroxyl value range 33 to 60mgKOH/g and oxyethylene group to 80mol%, second polyol component of the hydroxyl value range 80 to the content range 50 of 300mgKOH/g and oxyethylene group to 80mol%, graft polymer polyols component, tetra functional polyol component and glycerine, and first polyol component and the second polyol component for making sponge main body have super-oleophilic and Superhydrophilic, graft polymer polyols component, tetra functional polyol component and glycerine are used to increase the intensity of sponge main body.And the graphene is for making sponge main body have more preferably super-oleophilic.
Description
Technical field
The present invention is to be related to a kind of Polyurethane foam sponge, more particularly to a kind of polyamine ester foaming for water-oil separating
Sponge.
Background technique
TaiWan, China patent announcement I 447217 discloses a kind of compound for having both super-hydrophobic and super oleophylic function,
The table on the surface of the backbone of the porous material is coated in the porous material of spongelike structure and one comprising one
Layer.The material of the porous material be selected from lignose, cellulose, foamed plastic polymer, polyethers, polyvinyl alcohol,
Melamine, Polyurethane or polyester.The surface layer includes the graphite on the surface of several backbone for being attached to the porous material
Alkene piece.With 150 ° to 170 ° of contact angle (super-hydrophobicity) and the compound and oil between the compound and water
Between with 0 ° to 10 ° of contact angle (super-oleophilic).The compound can only be inhaled by the property of its super-hydrophobic and super oleophylic
Oil in attached oil water mixture, and the water in oil water mixture will not be absorbed by the compound, reach water-oil separating whereby
Effect.
Summary of the invention
However, using tool super-hydrophobicity and super-oleophilic compound carry out water-oil separating processing, due to oil specific gravity compared with
Water it is light and can be on the upper layer of oil water mixture and the water of oil water mixture can not be by compound, so being by compound and oil
The oil-water interfaces of aqueous mixtures contact to adsorb the lots that the mechanism of oil carries out water-oil separating.It is such as intended to using above-mentioned compound
Continuous water-oil separating processing is carried out, it is above-mentioned especially when oil water mixture is in a manner of pouring into or inject etc. and work continuously
Compound water can not be allowed to pass through because of its superhydrophobic property, so can be built up by the water that compound is obstructed, work as accumulation
Water more and more largely along with the specific gravity of oil is light compared with water and mobility is poor compared with water, compound, which will become difficult to touch grease, to be mixed
It closes the oil-water interfaces of object and oil can not be effectively absorbed, and a large amount of water may also destroy by rush of water compound or the place containing this compound
Manage pipeline.
The purpose of the present invention is to provide it is a kind of can continous way or in large quantities handle oil water mixture the permeable graphite of oil suction
Alkene sponge.
The permeable graphene sponge of oil suction of the present invention includes:
One sponge main body, the sponge main body are by a kind of group containing A agent, polyisocyanate compound and graphene
Reacted made at object, the A agent includes polyol blends, polyisocyanate compound, foaming agent, surfactant and catalysis
Agent, and the polyol blends contain:
First polyol component, for making the sponge main body have super-oleophilic and Superhydrophilic, and more than described first
The hydroxyl value range of first alkoxide component is 33 to 60mgKOH/g and the content range of oxyethylene group is 50 to 80mol%,
Second polyol component, for making the sponge main body have super-oleophilic and Superhydrophilic, and more than described second
The hydroxyl value range of first alkoxide component is 80 to 300mgKOH/g and the content range of oxyethylene group is 50 to 80mol%,
Graft polymer polyols component, for increasing the intensity of the sponge main body,
Tetra functional polyol component, for increasing the intensity of the sponge main body, and
Glycerine, for increasing the intensity of the sponge main body.
The permeable graphene sponge of oil suction of the present invention, the HLB value range of first polyol component are 5 to 12.
The permeable graphene sponge of oil suction of the present invention, the HLB value range of second polyol component are 7 to 14.
The permeable graphene sponge of oil suction of the present invention, the total amount with the A agent of the constituent is 100wt%, more than described first
The amount ranges of first alkoxide component are 30 to 70wt%.
The permeable graphene sponge of oil suction of the present invention, the total amount with the A agent of the constituent is 100wt%, more than described second
The amount ranges of first alkoxide component are 15 to 50wt%.
The permeable graphene sponge of oil suction of the present invention, the hydroxyl value range of the graft polymer polyols component be 20 to
40mgKOH/g。
The permeable graphene sponge of oil suction of the present invention, the hydroxyl value range of the tetra functional polyol component be 350 to
650mgKOH/g。
The permeable graphene sponge of oil suction of the present invention, the total amount with the A agent of the constituent is 100wt%, and the grafting is poly-
The amount ranges for closing object polyol component are 10 to 30wt%, the amount ranges of the tetra functional polyol component be 1 to
5wt%, the amount ranges of the glycerine are 1 to 5wt%.
The permeable graphene sponge of oil suction of the present invention, with the total amount of the A agent of the constituent for 100 parts by weight, the graphite
The amount ranges of alkene are 0.5 to 2 parts by weight.
The permeable graphene sponge of oil suction of the present invention, the density range of the sponge main body are 25 to 100kg/m3。
The permeable graphene sponge of oil suction of the present invention, the void density range of the sponge main body are 25 to 50PPI.
The beneficial effects of the present invention are: the permeable graphene sponge of oil suction passes through the graft polymer polyols group
Divide, tetra functional polyol component and glycerine allow the sponge main body to have fixed and fine and close shape and meet subsequent answer
Mechanical strength, and also pass through first polyol component and the second polyol component, and the lipophilic stone of tool
Black alkene allows the sponge main body to have super-oleophilic and Superhydrophilic, so that the permeable graphene sponge of the oil suction has high suction
Oiliness and high water-permeability, the permeable graphene sponge of oil suction are used to allow the water in oil water mixture logical when water-oil separating
The sponge main body is crossed, and allows oil by the sponge absorbent body but not by the sponge main body simultaneously, therefore can
Reach preferable oil-water separation.
Another beneficial effect of the invention is: only allowing grease compared to super-hydrophobic and super-oleophilic matter sponge
Oil in mixture is absorbed by the sponge without allowing water by sponge, and the permeable graphene sponge of oil suction can rapidly absorb oil
Water in aqueous mixtures simultaneously allows water to flow out from the sponge main body again, and absorbs the oil in oil water mixture simultaneously and stay oil
In sponge main body, thus achieve the effect that " water in filtering oil water mixture " and " absorbing the oil in oil water mixture ",
Therefore the permeable graphene sponge of oil suction has preferable oil-water separation.
Another beneficial effect of the invention is: it is mixed that the permeable graphene sponge of oil suction can rapidly absorb grease
It closes the water in object and water is allowed to flow out from the sponge main body again, when oil water mixture is continuous or it is saturating to contact the oil suction in large quantities
Aquadag alkene sponge, the water in oil water mixture can continue into the sponge main body and rapidly from the sponge main body
It appears without being obstructed and being accumulated by the permeable graphene sponge of the oil suction, therefore the permeable graphene sponge of the oil suction is very
Oil water mixture is handled suitable for continous way or in large quantities.
Detailed description of the invention
Fig. 1 is the photo of the result of the oil-water separation test of the permeable graphene sponge of oil suction of the present invention；
Fig. 2 is the photo of the result of the oil-water separation test of the permeable graphene sponge of oil suction of the present invention；And
Fig. 3 is the photo of the result of the oil-water separation test of the permeable graphene sponge of oil suction of the present invention.
Specific embodiment
The content of present invention is described in detail below:
Herein, " the sponge main body has super-oleophilic and Superhydrophilic " indicates oily matter and the sponge master
The contact angular region of body is 0 ° to 10 ° and aqueous substance with the contact angular region of the sponge main body is 0 ° to 5 °.
The constituent for being used to prepare the sponge main body contains A agent, polyisocyanate compound and graphene, wherein A agent
Including polyol blends, foaming agent, surfactant and catalyst, above-mentioned each ingredient is described further individually below.
< polyol blends >
The polyol blends contain the first polyol component, the second polyol component, graft polymer polyols group
Point, tetra functional polyol component and glycerine.The main work of first polyol component and second polyol component
With being that the sponge main body is made to have super-oleophilic and Superhydrophilic, so that the permeable graphene sponge of the oil suction has
High water-permeability and high oil-absorbing.The graft polymer polyols component, the tetra functional polyol component and described the third three
The main function of alcohol is to increase the intensity of the sponge main body, fix so that the permeable graphene sponge of the oil suction has
And fine and close shape and the mechanical strength for meeting subsequent applications.
The hydroxyl value range of first polyol component be 33 to 60mgKOH/g and oxyethylene group content range be 50 to
80mol%, when the hydroxyl value and oxyethylene group content of first polyol component are in above range, first polyol component
The sponge main body is capable of providing with super-oleophilic and Superhydrophilic；And when the hydroxyl value of first polyol component is above-mentioned
Range, first polyol component are capable of providing the sponge main body and have intensity.Preferably, first polyol component
HLB value range be 5 to 12, can be more conducive to that the sponge main body is made to have super-oleophilic and Superhydrophilic.Preferably, institute
The weight average molecular weight range for stating the first polyol component is 2500 to 5000.The type of first polyol component does not have
Especially limitation can be polyester polyol, polyether polyol or polyester ether polylol, can be single kind of polyalcohol, can also
To be the mixing of a variety of polyalcohols, as long as the hydroxyl value and oxyethylene group content of first polyol component are respectively in above-mentioned model
It encloses.The source of first polyol component can be voluntarily to synthesize or directly using commercial product, such as described first
Polyol component be it is a kind of by one containing polyester, polyethers, as the ethylene oxide of modification agent, and as three second of initiator
The reacted obtained hydroxyl value range of the reaction mixture of hydramine be 33 to 60mgKOH/g and oxyethylene group content range be 50 to
The commercially available polyol product of 80mol%.Preferably, being 100wt% with the total amount of the A agent of the constituent, more than described first
The amount ranges of first alkoxide component are 30 to 70wt%, can be more conducive to make the sponge main body to have super-oleophilic and super hydrophilic
Property, and be more conducive to make the sponge main body that there is fixed and densification shape and meet the mechanical strength of subsequent applications；
Further say, when the dosage of first polyol component is less than 30wt%, the super-oleophilic of sponge main body and super hydrophilic
Property performance it is less prominent, when the dosage of first polyol component be greater than 70wt% when, sponge main body it is less easily molded and
Hardness is more insufficient.
The hydroxyl value range of second polyol component is 80 to 300mgKOH/g and oxyethylene group content range is 50
To 80mol%, when the hydroxyl value and oxyethylene group content of second polyol component are respectively in above range, described more than second yuan
Alkoxide component is capable of providing the sponge main body with super-oleophilic and Superhydrophilic；And work as the hydroxyl value of second polyol component
In above range, second polyol component is capable of providing the sponge main body and has intensity.Preferably, described more than second yuan
The HLB range of alkoxide component is 7 to 14, can be more conducive to that the sponge main body is made to have super-oleophilic and Superhydrophilic.Preferably
Ground, the weight average molecular weight range of second polyol component are 400 to 1900.The type of second polyol component
It is not particularly limited, can be polyester polyol, polyether polyol or polyester ether polylol, can be single kind of polyalcohol,
It is also possible to the mixing of a variety of polyalcohols, as long as the hydroxyl value and oxyethylene group content of second polyol component are respectively above-mentioned
Range.The source of second polyol component can voluntarily to synthesize or directly using commercial product, such as described the
Two polyol components be it is a kind of by one containing polyester, polyethers, as the ethylene oxide of modification agent, and as the three of initiator
The reacted obtained hydroxyl value range of the reaction mixture of ethanol amine is 80 to 300mgKOH/g and oxyethylene group content range is 50
To the commercially available polyol product of 80mol%.Preferably, be 100wt% with the total amount of the A agent of the constituent, described second
The amount ranges of polyol component are 15 to 50wt%, can be more conducive to make the sponge main body to have super-oleophilic and super hydrophilic
Property, and be more conducive to make the sponge main body that there is fixed and densification shape and meet the mechanical strength of subsequent applications；Into
Say to one step, when the dosage of second polyol component is less than 15wt%, the super-oleophilic and Superhydrophilic of sponge main body
Performance it is less prominent, when the dosage of second polyol component be greater than 50wt% when, sponge main body is easier to embrittlement.
Preferably, the hydroxyl value range of graft polymer polyols (the graft polymer polyols) component is 20
To 40mgKOH/g, when the hydroxyl value of the graft polymer polyols component is in above range, working as the constituent can reduce
Magnitude and it also can slightly help provide the hardness of the sponge main body.Preferably, the weight of the graft polymer polyols component
Measuring average molecular weight range is 4000 to 10000, when the weight average molecular weight of the graft polymer polyols component is upper
Range is stated, the viscosity and intensity of the constituent can be increased.The type of the graft polymer polyols component is not special
Limitation, the polyester polyol such as, but not limited to through vinyl monomer-grafted, the polyether polyol through vinyl monomer-grafted or
Above-mentioned any combination.The commercial goods of the graft polymer polyols component are such as, but not limited to Mitsui Chemicals, Inc
POP 3428 and POP 3628, Bayer joint-stock companyPolyol HS100, Zibo moral believe federal chemical industry
The POP-H45 etc. of Co., Ltd.Preferably, being 100wt% with the total amount of the A agent of the constituent, the graft polymers is more
The amount ranges of first alkoxide component are 10 to 30wt%, can be more conducive to make the sponge main body to have super-oleophilic and super hydrophilic
Property, and be more conducive to make the sponge main body that there is fixed and densification shape and meet the mechanical strength of subsequent applications；Into
Say to one step, when the dosage of the graft polymer polyols component is less than 10wt%, the hardness of sponge main body is more insufficient, when
When the dosage of the graft polymer polyols component is greater than 30wt%, the performance of the super-oleophilic and Superhydrophilic of sponge main body
It is less prominent.
Preferably, the hydroxyl value range of tetra functional polyalcohol (tetra-functional polyol) component is 350
To 650mgKOH/g, when the hydroxyl value of the tetra functional polyol component is in above range, the sponge main body can be improved
Crosslink density and the hardness for increasing the sponge main body.Preferably, the weight average of the tetra functional polyol component point
Son amount range is 300 to 800, when the weight average molecular weight of the tetra functional polyol component is in above range, can be made
The sponge main body has preferable surface topography.The type of the tetra functional polyol component is not particularly limited, such as
But be not limited to pentaerythrite based polyether polyol etc..The commercial goods of the tetra functional polyol component are such as, but not limited to poly-
Ethoxylated polyhydric alcohol 4110, DOW Chemical490 etc..Preferably, being with the total amount of the A agent of the constituent
100wt%, the amount ranges of the tetra functional polyol component are 1 to 5wt%, the sponge main body can be made to have appropriate
Hardness and preferable anti-tear pulling force；Further say, when the dosage of the tetra functional polyol component is less than 1wt%, institute
The hardness for stating sponge main body is softer, when the dosage of the tetra functional polyol component is greater than 5wt%, the sponge main body
Anti-tear pulling force is poor.
The hydroxyl value range of the glycerine is 1827mgKOH/g.Preferably, being with the total amount of the A agent of the constituent
100wt%, the amount ranges of the glycerine are 1 to 5wt%, and the sponge main body can be made to have more careful abscess (cell)
And preferable anti-tear pulling force；Further say, when the dosage of the glycerine is less than 1wt%, the bubble of the sponge main body
Hole is coarseer, and when the dosage of the glycerine is greater than 5wt%, the anti-tear pulling force of the sponge main body is poor.
< foaming agent >
The type of the foaming agent is not particularly limited, and can be used and is typically prepared foaming agent used in Polyurethane sponge.Compared with
Goodly, the foaming agent is water, by carrying out as foaming agent and with polyisocyanate compound reacting generation titanium dioxide water
The mode of carbon foams, and can be foamed in more nontoxic mode, and be avoided that and remain in sponge master using non-aqueous foaming agent
Problem caused by body.The dosage of the foaming agent is not particularly limited, can be according to the adjustment of the density of the sponge main body
The dosage of foaming agent.Preferably, being 100wt% with the total amount of the A agent of the constituent, the amount ranges of the foaming agent are
0.7 to 4wt%；It further says, when the dosage of the foaming agent is less than 0.7wt%, the density of the sponge main body is excessively high
And manufacturing cost can be improved, when the dosage of the foaming agent is greater than 4wt%, the density of the sponge main body is too low and can make
The performance of the super-oleophilic and Superhydrophilic of the sponge main body is less prominent.
< surfactant >
The abscess that the effect of the surfactant is to increase the intersolubility of each component in the constituent, controls sponge main body
Pore size and distributing homogeneity, and during the constituent is reacted and foams to form sponge main body, allow
The cell wall of sponge main body has elasticity to keep gas here and prevent the sponge main body avalanche.The surfactant is for example but unlimited
In organic silicon surfactant etc..The dosage of the surfactant is not particularly limited, can be according to the density tune of the sponge main body
The dosage of the whole surfactant.Preferably, be 100wt% with the total amount of the A agent of the constituent, the dosage model of the surfactant
Enclose is 0.5 to 2wt%；It further says, when the dosage of the surfactant is less than 0.5wt%, the sponge main body can not shape
At abscess and meeting avalanche, when the dosage of the foaming agent is greater than 2wt%, the sponge main body can not have open-celled structure
(referring to relative to hole-closing structure) and shrink.
< catalyst >
The effect of the catalyst is to control milky white when the constituent is reacted and foams to form sponge main body
Time (cream time, abbreviation CT) and the time of sponge main body molding curing.The catalyst is such as, but not limited to three second
Alkene diamines, dipropylene glycol or above-mentioned any combination, for example, the catalyst can by 33wt% triethylene diamine and
The dipropylene glycol of 67wt% is formed.Preferably, be 100wt% with the total amount of the A agent of the constituent, the use of the catalyst
Measuring range is 0.2 to 1.0wt%；It further says, when the dosage of the catalyst is less than 0.2wt%, is less susceptible to make described
Sponge main body molding, when the dosage of the foaming agent be greater than 1.0wt% when, the time that the constituent is reacted too fastly without
Easily allow the sponge main body that there is open-celled structure.
< polyisocyanate compound >
For help to allow the sponge main body have default lower density (such as: 25 to 100kg/m3Density),
Preferably, the polyisocyanate compound is selected from aromatic diisocyanate compounds.More preferably, the aromatic series two
Isocyanate compound is selected from methyl diphenylene diisocyanate, toluene di-isocyanate(TDI) or any combination above-mentioned.For
There is foaming activity appropriate and crosslink density appropriate, preferably, forming with described when the constituent being allowed to be reacted
The total amount of the A agent of object is 100 parts by weight, and the amount ranges of the polyisocyanate compound are 30 to 50 parts by weight.
< graphene >
The graphene is for making sponge main body have more preferably super-oleophilic.The graphene is not particularly limited, only
Itself there is lipophilic or super-oleophilic.Preferably, with the total amount of the A agent of the constituent for 100 parts by weight, it is described
The amount ranges of graphene are 0.5 to 2 parts by weight, and the oil suction saturation degree for promoting the permeable graphene sponge of oil suction has
Optimum efficiency；Further say, when the dosage of the graphene is less than 0.5 parts by weight, graphene permeable for the oil suction
The effect of the promotion of the oil suction saturation degree of sponge is less obvious, when the dosage of the foaming agent is greater than 2 parts by weight, due to described
The specific gravity of graphene is compared with light so will increase the degree of difficulty in process operations and also manufacturing cost can be made excessively high.
The sponge main body is that the constituent is reacted made, and the process conditions of the reaction are not particularly limited,
Process conditions when can refer to general production Polyurethane sponge adjust the process conditions of the reaction, such as, but not limited to described anti-
The temperature range answered is 20 to 35 DEG C, and the reaction time range of the reaction is 60 seconds to 120 seconds.
The density range of the sponge main body of the permeable graphene sponge of oil suction is not particularly limited, as long as can make
The sponge main body has fixed shape.Preferably, the sponge main body of the permeable graphene sponge of oil suction have 25 to
100kg/m3Density, when the density of the sponge main body is in above range, the structure of the sponge main body is finer and close and has
More preferably oil absorption efficiency and combine the manufacturing cost of the permeable graphene sponge of the oil suction；It further says, when the sea
The density of continuous main body is less than 25kg/m3, the consistency of the structure of the sponge main body is lower and has lower oil absorption efficiency, when
The density of the sponge main body is greater than 100kg/m3, the production cost of the permeable graphene sponge of oil suction is higher.
Preferably, the void density range of the sponge main body of the permeable graphene sponge of oil suction is 25 to 50PPI
(Pores Per Inch)；It further says, when the void density of the sponge main body is less than 25PPI, although the oil suction
The speed of oil absorption of permeable graphene sponge and permeable fast speed but can make the oil suction saturation capacity of the oil suction water-permeable sponge compared with
It is low, when the void density of the sponge main body is greater than 50PPI, although the oil suction saturation capacity of the permeable graphene sponge of the oil suction
Higher but permeable speed is slower.
In a kind of state sample implementation of preparation method of the permeable graphene sponge of oil suction of the present invention, being will be containing 30 to 70wt%
The first polyol component (hydroxyl value 33 to 60mgKOH/g, molecular weight 2500 to 5000, HLB value 5 to 12, oxyethylene group content 50
To 80mol%), 15 to 50wt% the second polyol component (hydroxyl value 80 to 300mgKOH/g, molecular weight 400 to 1900, HLB
Value 7 to 14, oxyethylene group content 50 to 80mol%), 10 to 30wt% graft polymer polyols (hydroxyl value 20 to
40mgKOH/g, molecular weight 4000 to 10000), 1 to 5wt% tetra functional polyalcohol (hydroxyl value 350 to 650mgKOH/g, point
Son amount 300 to 800), 1 to 5wt% glycerine (hydroxyl value 1827mgKOH/g), 0.7 to 4wt% water, 0.2 to 1.0wt%'s
Catalyst (being made of the triethylene diamine of 33wt% and the dipropylene glycol of 67wt%), 0.5 to 2wt% silicone oil A agent 100
Parts by weight, the graphene with 30 to 50 parts by weight of methyl diphenylene diisocyanate and 0.5 to 2 parts by weight, at 25 DEG C and often
Pressure is stirred, and obtains a constituent.The constituent is placed in a mold is reacted (temperature is 20 to 35 DEG C, when
Between be 60 to 120 seconds), then, obtain the permeable graphene sponge of oil suction (density be 25 to 100kg/m3, void density rate is 25
To 50PPI).
Oil-water separation about the permeable graphene sponge of oil suction of the present invention is tested by following experiment: incite somebody to action this
It is all ginseng after 15.5 centimetres of diameter and 5 centimetres of thickness of sponge block that the permeable graphene sponge of invention oil suction, which is cut into three sizes,
Fig. 1 is read, by the sponge block vertical stack in one 15 centimetres and highly 400 centimetres of diameter of the transparent tubing string of cylindrical type, so
Afterwards, an oil water mixture (being made of 1 liter of water and 0.8 liter of used oil) is poured into the transparent tubing string of cylindrical type.Observation
The permeable graphene sponge of oil suction is to water flow in the degree of absorption and the oil water mixture of used oil in oil water mixture
Cross the degree of the permeable graphene sponge of the oil suction.The test knot of the oil-water separation of the permeable graphene sponge of oil suction of the present invention
Fruit is as shown in table 1 and Fig. 1 to 3.
Table 1
Note 1: the water in oil water mixture starts to appear from sponge, and after indicating that sponge is first saturated with water, water is flowed from sponge again
Out.
Note 2: completing the time of water-oil separating, and the water to appear from sponge reaches script water in oil water mixture
80% time.
By table 1 and Fig. 1 to Fig. 3 it is found that the permeable graphene sponge of the oil suction in oil water mixture to pour into cylindrical type transparent
In 3 seconds after tubing string, the sponge main body of the permeable graphene sponge of oil suction just rapidly absorbs water and allows absorbed water again
Quickly and in large quantities flowed out from sponge, show the permeable graphene sponge of the oil suction because its sponge main body have Superhydrophilic and
Water penetration and can rapidly absorb water and allow water quickly through outflow again, therefore the permeable graphene sponge of the oil suction have "
The effect of water in filtering oil water mixture ".
Furthermore the permeable graphene sponge of oil suction is in 5 seconds after oil water mixture pours into the transparent tubing string of cylindrical type, oil
Oil in aqueous mixtures has just been absorbed and will not have been flowed out from sponge again by the permeable graphene sponge of the oil suction, described in display
The permeable graphene sponge of oil suction can rapidly absorb oil and oil is stayed in sponge master because its sponge main body has super-oleophilic
In body, therefore the permeable graphene sponge of the oil suction has the effect of " absorbing the oil in oil water mixture ".
Thus provable, the permeable graphene sponge of oil suction have simultaneously " filtering water in oil water mixture " and "
The function of oil in absorption oil water mixture ", and cross drainage and absorb oily speed all very quickly, in addition the oil suction is permeable
Graphene sponge can make absorbed water quickly and flow out in large quantities, so the permeable graphene sponge of the oil suction not only has
Preferable oil-water separation, and be suitable also for continous way or handle oil water mixture in large quantities.
The permeable graphene sponge of oil suction of the present invention is suitable for oil leak processing, being recovered by filtration of rivers and creeks and sea surface oil stain, food and drink
Filtering oil smoke, kitchen cleaning grease of industry etc..
Only as described above, only the embodiment of the present invention is all when cannot be limited the scope of implementation of the present invention with this
It is all still to belong to what the present invention covered according to simple equivalent changes and modifications made by claims of the present invention and description
In range.
Claims (11)
1. a kind of permeable graphene sponge of oil suction, which is characterized in that it includes:
One sponge main body, the sponge main body are by a kind of constituent containing A agent, polyisocyanate compound and graphene
Reacted made, the A agent includes polyol blends, foaming agent, surfactant and catalyst, and the polyol blends
Contain:
First polyol component, for making the sponge main body have super-oleophilic and Superhydrophilic, and first polyalcohol
The hydroxyl value range of component is 33 to 60mgKOH/g and the content range of oxyethylene group is 50 to 80mol%,
Second polyol component, for making the sponge main body have super-oleophilic and Superhydrophilic, and second polyalcohol
The hydroxyl value range of component is 80 to 300mgKOH/g and the content range of oxyethylene group is 50 to 80mol%,
Graft polymer polyols component, for increasing the intensity of the sponge main body,
Tetra functional polyol component, for increasing the intensity of the sponge main body, and
Glycerine, for increasing the intensity of the sponge main body.
2. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that first polyol component
HLB value range is 5 to 12.
3. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that second polyol component
HLB value range is 7 to 14.
4. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that with the total of the A agent of the constituent
Amount is 100wt%, and the amount ranges of first polyol component are 30 to 70wt%.
5. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that with the total of the A agent of the constituent
Amount is 100wt%, and the amount ranges of second polyol component are 15 to 50wt%.
6. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that the graft polymer polyols group
The hydroxyl value range divided is 20 to 40mgKOH/g.
7. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that the tetra functional polyol component
Hydroxyl value range be 350 to 650mgKOH/g.
8. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that with the total of the A agent of the constituent
Amount is 100wt%, and the amount ranges of the graft polymer polyols component are 10 to 30wt%, the tetra functional polyalcohol
The amount ranges of component are 1 to 5wt%, and the amount ranges of the glycerine are 1 to 5wt%.
9. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that with the total of the A agent of the constituent
Amount is 100 parts by weight, and the amount ranges of the graphene are 0.5 to 2 parts by weight.
10. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that the density model of the sponge main body
Enclose is 25 to 100kg/m3。
11. the permeable graphene sponge of oil suction according to claim 1, which is characterized in that the hole of the sponge main body is close
Spending range is 25 to 50PPI.
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