CN108939616A - A kind of preparation method for water-oil separating sponge - Google Patents
A kind of preparation method for water-oil separating sponge Download PDFInfo
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- CN108939616A CN108939616A CN201811112928.3A CN201811112928A CN108939616A CN 108939616 A CN108939616 A CN 108939616A CN 201811112928 A CN201811112928 A CN 201811112928A CN 108939616 A CN108939616 A CN 108939616A
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- sponge
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- oil droplet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
Abstract
The present invention provides a kind of preparation method for water-oil separating sponge, this method realizes that physics is demulsified using the oleophylic and hydrophily of the surface intersection location of fiber and dimethyl silicone polymer.Using the small oil droplet in the lipophilic capture oil water mixture of dimethyl silicone polymer, first captured small oil droplet can merge to form larger oil droplet with the oil droplet of rear capture；Due to the barrier action of hydrophilic fibers, when oil droplet greatly to a certain extent after, when the buoyancy being subject to is more than adhesion strength of the intersection location to oil slick, oil droplet, which just starts to float, becomes oil slick, embodies the physics demulsification function of material.Additionally, due to fiber diameter between 5-20 μm, the size minimum of the position that fiber can be made to intersect with dimethyl silicone polymer provides condition up to hundreds of nanometers, to capture small oil droplet.Realize the building of micro nano structure；By hydrophily and lipophilic compound, the capture to small oil droplet is realized, is grown, floating-upward process.
Description
Technical field
The invention patent relates to a kind of preparation methods for water-oil separating sponge, belong to the preparation of environmental functional nano material
With applied technical field.
Background technique
At this stage, mechanic factory workers, petroleum chemical enterprise etc. can be generated largely in production, cleaning process containing greasy dirt
Water, is usually presented oil-in-water state, and oil droplet size in mixing liquid is stabilized at 10 microns or less.Mesh during processing
Preceding common method is exactly to add chemical agent, can generate secondary pollution in this way, and the solid waste of generation also needs to go to handle again.It compares
Under, new pollution is then hardly generated in the way of physics mode progress emulsified oil-containing waste water separation.It is main at present
Physics mode is vaporization at high temperature mode, film filtering etc..But equally there is also respective disadvantages, such as vaporization at high temperature mode energy
Consumption is high, efficiency is lower；Film is filtered or is handled in the way of the retention of small-bore, since aperture very little is easy to be blocked up by impurity
Plug influences flux.
And be first demulsified using physical structure, then the mode separated to the liquid of layering is then optimal selection,
Both secondary pollution will not be generated, there will not be blockage problem.The mode for realizing physics demulsification at present is to utilize aggregation coarse
Filler increases the mutual collision opportunity of oil droplet to realize, but this method scope of application is directed to 5 microns or more
Oil droplet is effective.It is then that invalid, smaller oil particles are referred to as oil emulsion, oil emulsion removal for smaller oil droplet
It is the difficult point of current water-oil separating.In consideration of it, the present invention relates to preparing, one kind is microcosmic above to have nano-micrometre multi-level structure
Porous sponge, multi-level structure allow the sponge capture aggregation olesome size distribution it is larger, from several hundred nanometers to
Tens microns can be with so that realize the physics demulsification to emulsification oil particles.
Summary of the invention
The present invention provides a kind of preparation method for water-oil separating sponge, this method utilizes fiber and poly dimethyl silicon
The oleophylic of the surface intersection location of oxygen alkane and hydrophily realize that physics is demulsified.Utilize the lipophilicity capture of dimethyl silicone polymer
Small oil droplet in oil water mixture, first captured small oil droplet can merge to form larger oil droplet with the oil droplet of rear capture；Due to parent
The barrier action of water cellulose, when oil droplet greatly to a certain extent after, when the buoyancy being subject to be more than adherency of the intersection location to oil slick
When power, oil droplet, which just starts to float, becomes oil slick, embodies the physics demulsification function of material.
A kind of preparation method for water-oil separating sponge of the present invention, follows the steps below:
A, at room temperature, by the more methyl silicon of 184 dimethicone component A of the DOW CORNING Sylgard of 5-40wt.%
The low boiling point organic solvent of oxygen alkane and 60-90wt.%, is mixed by mechanical stirring, time 10-60min, is prepared into
One mixed liquor；
B, continue to stir the mixing liquid in a, in whipping process, be slowly added to length 0.1-2mm, diameter is 5-20 μm
Short glass fiber or basalt fibre, additional amount be component A mass fraction 0.1-3% after, continue stir 10-60min,
The process carries out in ice-water bath；
C, continue to stir the mixing liquid in b, and be slowly added to DOW CORNING B curing agent component, additional amount is component A
0.1 times, mechanical stirring 10-30min, the process carries out in ice-water bath；
D, the clean polyurethane macropore sponge of pre-cleaning is infiltrated into the mixed liquor of c, the process is in ultrasonic bath
Carry out 15-40min, after dipping after sponge is taken out, put 5-60min in air；
E, put and heat in an oven, 40 DEG C of whens, handle 10-60min, after temperature is promoted to 100 DEG C, handle 10-30min,
Solidification；
F, 1-20 extruding is carried out after taking out sponge, such sponge surface is covered by the coating with micro-nano structure.Institute
It states sponge material to be fixed in one end of microcosmic 5-20 μm of fiber of upper diameter by dimethyl silicone polymer, the other end exposes.
The low boiling point organic solvent, including methanol, ethyl alcohol, acetone, isopropanol.
Hydrophily is presented in the fiber, and the dimethyl silicone polymer presents lipophilic.
The advantages of this microstructure is when oil water mixture flows through, can be by fiber and dimethyl silicone polymer
Surface intersection location oleophylic and hydrophily come realize physics be demulsified.Utilize the lipophilic capture grease of dimethyl silicone polymer
Small oil droplet in mixture, first captured small oil droplet can merge to form larger oil droplet with the oil droplet of rear capture；Due to hydrophilic fibre
The barrier action of dimension, when oil droplet greatly to a certain extent after, when the buoyancy being subject to be more than the intersection location to the adhesion strength of oil slick when,
Oil droplet, which just starts to float, becomes oil slick, embodies the physics demulsification function of material.Additionally, due to fiber diameter 5-20 μm it
Between, the size minimum for the position that fiber can be made to intersect with dimethyl silicone polymer is up to hundreds of nanometers, for capture
Small oil droplet provides condition.
Advantages of the present invention: by means of the oleophylic of the hydrophily and dimethyl silicone polymer of glass fibre or basalt fibre
Property realizes hydrophily and lipophilic compound；By the micron order size of fiber, the building of micro nano structure is realized；By
Hydrophily and lipophilic compound, realizes the capture to small oil droplet, grows, floating-upward process.
Detailed description of the invention
Fig. 1 is glass fibre stereoscan photograph
Fig. 2 is basalt fibre electromicroscopic photograph
Fig. 3 is that basalt fibre pierces through polydimethyl siloxane material surface picture
Fig. 4 is basalt fibre polydimethyl siloxane material surface and fibroplastic micro-nano-scale structure photo
Specific embodiment
The present embodiment premised on technical solution of the present invention under implemented, give detailed embodiment and specific
Operating process, but the present invention is not limited to following embodiments:
Embodiment 1:
The present invention relates to a kind of preparation methods for water-oil separating sponge.Preparation step is as follows:
The methanol of 184 dimethicone component A 30g and 65g of DOW CORNING Sylgard are passed through mechanical stirring by a
It is mixed, time 10min, uniform mixed liquor is sunk in preparation；
B continues to stir the mixing liquid in a, in whipping process, is slowly added to length 0.5mm, and diameter is 12 μm short
Glass fibre is cut, after seeing that Fig. 1, quality are 0.8g, continues to stir 20min, which carries out in ice-water bath；
C continues to stir the mixing liquid in b, and is slowly added to DOW CORNING B component 3g mechanical stirring 10min, which exists
It is carried out in ice-water bath；
D infiltrates the clean polyurethane macropore sponge of pre-cleaning into the mixed liquor of c, and the process is in ultrasonic bath
Carry out 20min, after dipping after sponge is taken out, put 50min in air；
E is put and is heated in an oven, and 40 DEG C of whens handle 20min, after temperature is promoted to 100 DEG C, handle 30min, solidification.
F, carries out 7 extruding after sponge is taken out, such sponge surface is covered by the coating with micro-nano structure.In coating
Understand some glass fibre puncture coating surface to expose.In conjunction with the lipophilicity and glass fibre of dimethyl silicone polymer
There is hydrophily hydrophilic and oleophylic composite performance microstructure to be formed.
Embodiment 2:
The present invention relates to a kind of preparation methods for water-oil separating sponge.Preparation step is as follows:
A, by the ethyl alcohol of 15g DOW CORNING Sylgard 184 dimethicone component A and 82g by mechanical stirring into
Uniform mixed liquor is sunk in row mixing, time 20min, preparation；
B continues to stir the mixing liquid in a, in whipping process, is slowly added to length 1mm, and diameter is 10 μm and is chopped
Glass fibre after quality is 0.3g, continues to stir 30min, which carries out in ice-water bath；
C continues to stir the mixing liquid in b, and is slowly added to DOW CORNING B component 1.5g mechanical stirring 20min, the process
It is carried out in ice-water bath；
D infiltrates the clean polyurethane macropore sponge of pre-cleaning into the mixed liquor of c, and the process is in ultrasonic bath
Carry out 15min, after dipping after sponge is taken out, put 10min in air；
E is put and is heated in an oven, and 40 DEG C of whens handle 10min, after temperature is promoted to 100 DEG C, handle 20min, solidification.
F, carries out 10 extruding after sponge is taken out, such sponge surface is covered by the coating with micro-nano structure.Coating
Middle some glass fibre of meeting pierces through coating surface and exposes.The surface lipophilicity that combines dimethyl silicone polymer in this way
It prepares and completes with the hydrophilic sponge of glass fibre.
Embodiment 3:
The present invention relates to a kind of preparation methods for water-oil separating sponge.Preparation step is as follows:
A, by the acetone of 10g DOW CORNING Sylgard 184 dimethicone component A and 85g by mechanical stirring into
Uniform mixed liquor is sunk in row mixing, time 20min, preparation；
B continues to stir the mixing liquid in a, in whipping process, is slowly added to length 0.3mm, and diameter is 15 μm short
After cutting basalt fibre 0.1g, fibre picture is shown in Fig. 2, continues to stir 30min, which carries out in ice-water bath；
C continues to stir the mixing liquid in b, and is slowly added to DOW CORNING B component 1g mechanical stirring 30min, which exists
It is carried out in ice-water bath；
D infiltrates the clean polyurethane macropore sponge of pre-cleaning into the mixed liquor of c, and the process is in ultrasonic bath
Carry out 40min, after dipping after sponge is taken out, put 40min in air；
E is put and is heated in an oven, and 40 DEG C of whens handle 40min, after temperature is promoted to 100 DEG C, handle 15min, solidification.
F, carries out 5 extruding after sponge is taken out, such sponge surface is covered by the coating with micro-nano structure.In coating
Understand some basalt fibre puncture coating surface to expose.Structure is shown in that the such surface Fig. 3 and Fig. 4 combines poly- diformazan
The lipophilicity of radical siloxane and the hydrophilic sponge of basalt fibre prepare and complete.
Embodiment 4:
The present invention relates to a kind of preparation methods for water-oil separating sponge.Preparation step is as follows:
The isopropanol of 18g DOW CORNING Sylgard 184 dimethicone component A and 80g are passed through mechanical stirring by a
It is mixed, time 20min, uniform mixed liquor is sunk in preparation；
B continues to stir the mixing liquid in a, in whipping process, is slowly added to length 0.5mm, and diameter is 8 μm short
Basalt fibre is cut, after quality is 0.5g, continues to stir 30min, which carries out in ice-water bath；
C continues to stir the mixing liquid in b, and is slowly added to DOW CORNING B component 1.8g mechanical stirring 20min, the process
It is carried out in ice-water bath；
D infiltrates the clean polyurethane macropore sponge of pre-cleaning into the mixed liquor of c, and the process is in ultrasonic bath
Carry out 30min, after dipping after sponge is taken out, put 20min in air；
E is put and is heated in an oven, and 40 DEG C of whens handle 50min, after temperature is promoted to 100 DEG C, handle 20min, solidification.
F, carries out 9 extruding after sponge is taken out, such sponge surface is covered by the coating with micro-nano structure.In coating
Understand some basalt fibre puncture coating surface to expose.The surface lipophilicity that combines dimethyl silicone polymer in this way
It prepares and completes with the hydrophilic sponge of basalt fibre.
Claims (4)
1. a kind of preparation method for water-oil separating sponge, it is characterised in that follow the steps below:
A, at room temperature, by the more methyl silicon oxygen of 184 dimethicone component A- of the DOW CORNING Sylgard of 5-40wt.%
Alkane, the low boiling point organic solvent with 60-90wt.%, is mixed by mechanical stirring, time 10-60min, is prepared into
One mixed liquor；
B, continue to stir the mixing liquid in a, in whipping process, be slowly added to length 0.1-2mm, diameter is 5-20 μm short
Glass fibre or basalt fibre are cut, additional amount is to continue to stir 10-60min, the mistake after component A mass fraction is 0.1-3%
Journey carries out in ice-water bath；
C, continuing to stir the mixing liquid in b, and be slowly added to DOW CORNING B component curing agent, additional amount is 0.1 times of component A,
Mechanical stirring 10-30min, the process carry out in ice-water bath；
D, the clean polyurethane macropore sponge of pre-cleaning is infiltrated into the mixed liquor of c, which carries out in ultrasonic bath
15-40min, after dipping after sponge is taken out, put 5-60min in air；
E, put and heat in an oven, 40 DEG C of whens, handle 10-60min, after temperature is promoted to 100 DEG C, handle 10-30min, Gu
Change；
F, 1-20 extruding is carried out after taking out sponge, such sponge surface is covered by the coating with micro-nano structure.
2. a kind of preparation method for water-oil separating sponge according to claims 1, it is characterised in that sponge material
It is fixed in one end of microcosmic 5-20 μm of fiber of upper diameter by dimethyl silicone polymer, the other end exposes.
3. a kind of preparation method for water-oil separating sponge according to claims 1, it is characterised in that the low boiling
Point organic solvent, including methanol, ethyl alcohol, acetone, isopropanol.
4. a kind of preparation method for water-oil separating sponge according to claims 1, it is characterised in that the fiber
Hydrophily is presented, the dimethyl silicone polymer presents lipophilic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112928.3A CN108939616A (en) | 2018-09-25 | 2018-09-25 | A kind of preparation method for water-oil separating sponge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112928.3A CN108939616A (en) | 2018-09-25 | 2018-09-25 | A kind of preparation method for water-oil separating sponge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504844A (en) * | 2020-10-28 | 2022-05-17 | 中国石油化工股份有限公司 | Coalescence material, preparation method thereof and oil removing method |
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| US20010025066A1 (en) * | 2000-02-29 | 2001-09-27 | Noriyuki Meguriya | Method for the preparation of low specific gravity silicone rubber elastomers |
| CN104448317A (en) * | 2014-11-28 | 2015-03-25 | 华东理工大学 | Preparation method of porous oil absorption material |
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| KR101734228B1 (en) * | 2016-04-27 | 2017-05-11 | 성균관대학교산학협력단 | Graphene sponge, method of preparing the same, and filter containing the same |
| CN106823470A (en) * | 2017-01-12 | 2017-06-13 | 华东理工大学 | A kind of compound coalescence material for water de-oiling |
| CN107312198A (en) * | 2016-07-22 | 2017-11-03 | 中国石油化工股份有限公司 | Super-hydrophobic cavernous body and preparation method thereof |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010025066A1 (en) * | 2000-02-29 | 2001-09-27 | Noriyuki Meguriya | Method for the preparation of low specific gravity silicone rubber elastomers |
| CN104448317A (en) * | 2014-11-28 | 2015-03-25 | 华东理工大学 | Preparation method of porous oil absorption material |
| CN104945656A (en) * | 2015-06-25 | 2015-09-30 | 华南理工大学 | High-performance cellulose base oil absorption material and preparing method thereof |
| CN105797431A (en) * | 2016-03-28 | 2016-07-27 | 桂林理工大学 | Method for preparing efficient hydrophobic oil-absorbing sponge |
| KR101734228B1 (en) * | 2016-04-27 | 2017-05-11 | 성균관대학교산학협력단 | Graphene sponge, method of preparing the same, and filter containing the same |
| CN107312198A (en) * | 2016-07-22 | 2017-11-03 | 中国石油化工股份有限公司 | Super-hydrophobic cavernous body and preparation method thereof |
| CN106823470A (en) * | 2017-01-12 | 2017-06-13 | 华东理工大学 | A kind of compound coalescence material for water de-oiling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504844A (en) * | 2020-10-28 | 2022-05-17 | 中国石油化工股份有限公司 | Coalescence material, preparation method thereof and oil removing method |
| CN114504844B (en) * | 2020-10-28 | 2023-08-08 | 中国石油化工股份有限公司 | Coalescence material, preparation method thereof and oil removal method |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hao Bin Inventor after: Wang Rui Inventor after: Li Tiangang Inventor before: Hao Bin Inventor before: Request not to publish name Inventor before: Wang Rui Inventor before: Li Tiangang |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20210910 |