CN109267330A - A kind of oleophobic method of modifying of polybutadiene film - Google Patents
A kind of oleophobic method of modifying of polybutadiene film Download PDFInfo
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- CN109267330A CN109267330A CN201811255232.6A CN201811255232A CN109267330A CN 109267330 A CN109267330 A CN 109267330A CN 201811255232 A CN201811255232 A CN 201811255232A CN 109267330 A CN109267330 A CN 109267330A
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- polybutadiene
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- oleophobic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
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Abstract
The present invention relates to a kind of oleophobic method of modifying of polybutadiene film, using fluorization agent impregnation nano SiO 2 particle, fluorided silica nano silicon particles are carried on by polybutadiene fibre by suction method again, obtain the porous polybutadiene membrane material with double thin performances.The present invention improves the oleophobic performance of polybutadiene film, and the water of modified polybutadiene film, oily contact angle are respectively 143 °, 120 °；Modified polybutadiene film not only shows stable air mass flow, but also good strainability is shown in oil-contained system, to the rejection of oil-contg. smoke up to 99.5% or more.
Description
Technical field
The present invention relates to a kind of modification method for preparing of organic film, the modified preparation of the oleophobic of especially a kind of polybutadiene film
Method.
Background technique
During the industry productions such as chemistry, petroleum, steel, food, some organic matters can be usually discharged, form oiliness gas
The compounds such as colloidal sol, predominantly aldehyde, ketone, hydrocarbon, aromatic compound and esters.Sucking these oiliness aerosol airs for a long time can
Some diseases, such as injury of lungs, body immunity decline, potential carcinogenicity etc. can be will lead to.Therefore, we be highly desirable from
Oiliness aerosol is removed in air.However, oil has high viscosity and low-surface-energy, them is allowed to be easily penetrate into filter material
Material surface and the duct for stopping most of filtering materials.
Polybutadiene (polybutadiene) is with its excellent heat-resisting quantity, chemical stability, hydrophobicity, non-stick, self-lubricating
Performance and it is well-known.These performances can be applied to many fields, including clothes film, bubble point film and industrial smoke filtering.From table
The hydrophobicity of polybutadiene is strong from the point of view of the characteristic of face, is because the high and low surface tension of its chemical bond energy, affine with other polymers
The small reason of power.Polybutadiene film can remove moisture in industrial smoke filtering by surface hydrophobic, and protect gas
High flow rate is held to pass through.But polybutadiene film is oleophylic, and when for filtering the gas containing oiliness compound, oiliness gas
Colloidal sol is easy to be adhered on the surface and hole path of film.Therefore, when polybutadiene film filtering oil-containing gases, it will lead to film dirt
Dye increases filtration resistance, is not suitable for the air purification process of Organic aerosol.This just needs to be improved the lipophilicity on its surface
Energy.
Method of modifying to organic film hydrophobic oleophobic mainly includes corona treatment, chemical vapor deposition, chemical etching
Method etc..But these processes are not easy to amplify, and process is complex.
Summary of the invention
The purpose of the present invention is to provide a kind of modified preparation methods of type polybutadiene film oleophobic, obtain hydrophobic oleophobic
Polybutadiene membrane material.The present invention improves dredging for film by the way that fluorinated silica to be attached on the fiber of polybutadiene
Oiliness energy.This method simple process, preparation time is short, is easy to industrialize.
Technical scheme is as follows:
A kind of oleophobic method of modifying of polybutadiene film, which comprises the steps of:
Step 1: silica nano-powders and hexamethylene are obtained into uniform solution by ultrasonic treatment；In the process of stirring
Middle addition fluorization agent, after stirring continues for some time, centrifuge separation；The nano SiO 2 particle separated is dry, it obtains
To the fluorided silica nano silicon particles of hydrophobic oleophobic；
Step 2: the fluorided silica nano silicon particles that step 1 obtains being added in ethyl alcohol and stir to get suspension, is used
Nano particle is adsorbed on the surface of polybutadiene fibre by the method for filtering suspension；Then modified with ethyl alcohol repeated flushing
Film, finally will the polybutadiene film place it is dry in baking oven.
Wherein:
The volume ratio of fluorization agent and hexamethylene is 1:40-80 in step 1, and the additional amount of silica nano-powders is 1-2 g/
ML hexamethylene.The fluorization agent is perfluoro capryl trichlorosilane, perfluoro capryl trimethoxy silane or perfluoro decyl acrylate.
Lasting 10-16h, stirring rate 400-600 rpm are stirred after fluorization agent is added in step 1,
Centrifuge separation is centrifugated 10-20 minutes under conditions of 10000rpm in step 1.
Nano SiO 2 particle dry 5-10h under conditions of 60-80 DEG C in step 1.
The additional amount of fluorided silica silicon nanopowder is 2-4 g/mL ethyl alcohol in step 2.
The pressure filtered in step 2 is 0.1-0.2MPa.
Polybutadiene film places 80-100 DEG C of dry 5-10h in baking oven in step 2.
Beneficial effects of the present invention: the present invention improves the oleophobic performance of polybutadiene film, modified polybutadiene film
Water, oily contact angle are respectively 143 °, 120 °；Modified polybutadiene film not only shows stable air mass flow, Er Qie
Good strainability is shown in oil-contained system, to the rejection of oil-contg. smoke up to 99.5% or more.The preparation method technique letter
Single, preparation time is short, is easy to industrialize.
Detailed description of the invention
Fig. 1 is the contact angle test figure of embodiment 1, (1) modified polybutadiene film water contact angle, (2) modified poly- fourth
Diene film oil contact angle.
Specific embodiment
Illustrate embodiments of the present invention with reference to the accompanying drawing.The following example is merely to illustrate the present invention, but and does not have to
To limit practical range of the invention.
Embodiment 1
The hexamethylene of the SiO 2 powder of 0.5g and 50ml are obtained into uniform solution by ultrasonic treatment first.Secondly it is stirring
The perfluoro capryl trimethoxy silane (PFTMS) of 0.5ml is added during mixing, stirs and continues 10h(600 rpm), stirring knot
Shu Hou is centrifugated 10 minutes, finally, the item by the silica dioxide granule separated at 60 DEG C under conditions of 10000rpm
Dry 5h, obtains the nanometer silicon dioxide particle of hydrophobic oleophobic under part.
Obtained fluorided silica nano silicon particles 2g is added in 100mL ethyl alcohol and stirs to get suspension, by
Fluorinated silica nano granule suspension is filtered under the pressure of 0.1Mpa, and nano particle is adsorbed on to the table of polybutadiene fibre
On face.Then the modified film of ethyl alcohol repeated flushing is used, it is small which is finally placed to drying 5 in 80 DEG C of baking oven
When.
As shown in Figure 1, the water of modified polybutadiene film, hexadecane oil contact angle are respectively 143 °, 120 °.
SiO2The test of-PFTMS/ polybutadiene film oil-contg. smoke strainability.Admission pressure is 0.1 MPa, passes through control
The pressure of generator comes so that gas flow is maintained at 0.4m3/h.In entire oil-contg. smoke filter process, inlet concentration is always
It is maintained at 1320mg/m3, exit concentration 6mg/m3, rejection is up to 99.5%.SiO2The initial drop of-PFTMS/ polybutadiene film
For 2 kPa, after filtering, pressure drop also only has 8.25 kPa.It can be seen that modified SiO2- PFTMS/ polybutadiene film is not
Stable air mass flow is only shown, and shows good strainability in oil-contained system.
Embodiment 2
The hexamethylene of the SiO 2 powder of 1g and 50ml are obtained into uniform solution by ultrasonic treatment first.Secondly it is stirring
During be added 1ml perfluoro capryl trichlorosilane, stir continue 12h(400 rpm), after stirring, in 10000rpm
Under conditions of be centrifugated 20 minutes, finally, by the silica dioxide granule separated under conditions of 80 DEG C dry 5h, obtain
The nanometer silicon dioxide particle of hydrophobic oleophobic.
Obtained fluorided silica nano silicon particles 4g is added in 100mL ethyl alcohol and stirs to get suspension, by
Fluorinated silica nano granule suspension is filtered under the pressure of 0.2Mpa, and nano particle is adsorbed on to the table of polybutadiene fibre
On face.Then the modified film of ethyl alcohol repeated flushing is used, it is small which is finally placed to drying 5 in 100 DEG C of baking oven
When.
The water contact angle of modified PTFE film is 142 °, and hexadecane oil contact angle is 121 °.
Embodiment 3
The hexamethylene of the SiO 2 powder of 0.5g and 40ml are obtained into uniform solution by ultrasonic treatment first.Secondly it is stirring
The perfluoro decyl acrylate of 0.5ml is added during mixing, stirs and continues 16h(600 rpm), after stirring,
It is centrifugated 10 minutes under conditions of 10000rpm, finally, the silica dioxide granule separated is done under conditions of 60 DEG C
Dry 10h obtains the nanometer silicon dioxide particle of hydrophobic oleophobic.
Obtained fluorided silica nano silicon particles 3g is added in 100mL ethyl alcohol and stirs to get suspension, by
Fluorinated silica nano granule suspension is filtered under the pressure of 0.1Mpa, and nano particle is adsorbed on to the table of polybutadiene fibre
On face.Then the modified film of ethyl alcohol repeated flushing is used, it is small which is finally placed to drying 10 in 80 DEG C of baking oven
When.
The water contact angle of modified PTFE film is 140 °, and hexadecane oil contact angle is 123 °.
Claims (9)
1. a kind of oleophobic method of modifying of polybutadiene film, which comprises the steps of:
Step 1: silica nano-powders and hexamethylene are obtained into uniform solution by ultrasonic treatment；In the process of stirring
Middle addition fluorization agent, after stirring continues for some time, centrifuge separation；The nano SiO 2 particle separated is dry, it obtains
To the fluorided silica nano silicon particles of hydrophobic oleophobic；
Step 2: the fluorided silica nano silicon particles that step 1 obtains being added in ethyl alcohol and stir to get suspension, is used
Nano particle is adsorbed on the surface of polybutadiene fibre by the method for filtering suspension；Then modified with ethyl alcohol repeated flushing
Film, finally will the polybutadiene film place it is dry in baking oven.
2. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that in step 1 fluorization agent and
The volume ratio of hexamethylene is 1:50-1:100, and the additional amount of silica nano-powders is 1-2 g/100mL hexamethylene.
3. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that the fluorization agent is perfluor
Octyltrichlorosilane, perfluoro capryl trimethoxy silane or perfluoro decyl acrylate.
4. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that fluorination is added in step 1
It is stirred after agent and continues 10-16h, stirring rate 400-600 rpm.
5. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that be centrifugated in step 1
It is to be centrifugated 10-20 minutes under conditions of 10000rpm.
6. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that silica in step 1
Nano particle dry 5-10h under conditions of 60-80 DEG C.
7. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that be fluorinated dioxy in step 2
The additional amount of SiClx nanometer powder is 2-4 g/100mL ethyl alcohol.
8. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that the pressure filtered in step 2
Power is 0.1-0.2MPa.
9. the oleophobic method of modifying of polybutadiene film according to claim 1, which is characterized in that polybutadiene in step 2
Film places 80-100 DEG C of dry 5-10h in baking oven.
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| CN201811255232.6A CN109267330A (en) | 2018-10-26 | 2018-10-26 | A kind of oleophobic method of modifying of polybutadiene film |
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Cited By (3)
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| CN110042657A (en) * | 2019-05-24 | 2019-07-23 | 四川大学 | A kind of superhydrophobic fabric of stability and durability and preparation method thereof |
| CN110237727A (en) * | 2019-06-19 | 2019-09-17 | 中国科学技术大学 | A kind of preparation method of super-hydrophobic seperation film |
| CN110813101A (en) * | 2019-12-02 | 2020-02-21 | 南京科技职业学院 | Polytetrafluoroethylene membrane oleophobic modification method |
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| CN106390764A (en) * | 2015-07-28 | 2017-02-15 | 北京工业大学 | Superhydrophobic oleophobic modification method of porous membrane |
| CN106731904A (en) * | 2016-12-09 | 2017-05-31 | 唐山学院 | The preparation method of unilateral super-hydrophobic poly (ether sulfone) film |
| CN106893391A (en) * | 2017-04-07 | 2017-06-27 | 南京工业大学 | Nano powder hydrophobic and oleophobic modification method |
| CN106914150A (en) * | 2017-04-07 | 2017-07-04 | 南京工业大学 | Hydrophobic and oleophobic modification method of porous organic membrane |
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| US20110195181A1 (en) * | 2008-08-11 | 2011-08-11 | Dic Corporation | Superhydrophobic powders, structure with superhydrophobic surface, and processes for producing these |
| CN106390764A (en) * | 2015-07-28 | 2017-02-15 | 北京工业大学 | Superhydrophobic oleophobic modification method of porous membrane |
| CN106731904A (en) * | 2016-12-09 | 2017-05-31 | 唐山学院 | The preparation method of unilateral super-hydrophobic poly (ether sulfone) film |
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| CN110042657A (en) * | 2019-05-24 | 2019-07-23 | 四川大学 | A kind of superhydrophobic fabric of stability and durability and preparation method thereof |
| CN110042657B (en) * | 2019-05-24 | 2021-07-16 | 四川大学 | Stable and durable super-hydrophobic fabric and preparation method thereof |
| CN110237727A (en) * | 2019-06-19 | 2019-09-17 | 中国科学技术大学 | A kind of preparation method of super-hydrophobic seperation film |
| CN110237727B (en) * | 2019-06-19 | 2021-04-23 | 中国科学技术大学 | Preparation method of super-hydrophobic separation membrane |
| CN110813101A (en) * | 2019-12-02 | 2020-02-21 | 南京科技职业学院 | Polytetrafluoroethylene membrane oleophobic modification method |
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