CN109774111A - A kind of hydrophobic plastic film and preparation method thereof - Google Patents
A kind of hydrophobic plastic film and preparation method thereof Download PDFInfo
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- CN109774111A CN109774111A CN201711116495.4A CN201711116495A CN109774111A CN 109774111 A CN109774111 A CN 109774111A CN 201711116495 A CN201711116495 A CN 201711116495A CN 109774111 A CN109774111 A CN 109774111A
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- sheet metal
- plastic film
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- blasting treatment
- coining
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Abstract
The present invention provides a kind of hydrophobic plastic films and preparation method thereof, this method comprises: carrying out polishing processing to sheet metal, and the sheet metal after opposite grinding light processing is cleaned；Blasting treatment is carried out to the sheet metal after cleaning；Above sheet metal after plastic plate to be laminated on to blasting treatment, coining processing is carried out；And to by coining, treated that plastic plate carries out demoulding processing, to obtain hydrophobic plastic film.Plastic film prepared by the method for the present invention can effectively improve the hydrophobic performance of the plastic film, and effectively solve Plastic film surface to the sticking problem of viscous fluid.
Description
Technical field
The present invention relates to hydrophobic materials, more particularly, to a kind of hydrophobic plastic film and preparation method thereof.
Background technique
It is mainly super thin in the spraying of plastic bottle closure surface that thick shape liquid is solved at present in the method for plastic bottle closure sticking problem
Water coating.But ultra-hydrophobicity is realized on bottle cap surface using spraying super-hydrophobic coat, it usually needs in substrate surface
Micro-nano coarse structure and low-surface energy substance are introduced, micro-nano coarse structure and low-surface-energy object are introduced currently with spraying method
The preparation process of matter is sufficiently complex, and preparation flow is very complicated, and substance used in coating is not usually food-grade object
Matter is used for a long time and there is potential threat to human health, and the Coating Durability being prepared is poor, is easy to fall off.
Summary of the invention
In view of the above problems, the present invention in such a way that sand-blast and plate stamped method combine to thermoplastic (such as
Polypropylene, polyethylene, polyethylene terephthalate) plate handled, and by sand-blast is produced from sheet metal surface
Micro-nano coarse structure is given birth to, then the micro-nano coarse structure on sheet metal is copied to the table of each plastic plate by plate stamped method
Face, so that super-hydrophobic plastic film be prepared.
The present invention provides a kind of methods for preparing hydrophobic plastic film, which comprises polishes to sheet metal
Processing, and the sheet metal after opposite grinding light processing is cleaned；Blasting treatment is carried out to the sheet metal after cleaning；Plastic plate is laminated
Above sheet metal after blasting treatment, coining processing is carried out；And to by coining, treated that plastic plate carries out at demoulding
Reason, to obtain the hydrophobic plastic film.
In the above-mentioned methods, the hydrophobic plastic film is that the contact angle on surface is greater than 150 ° of super-hydrophobic plastic film.
In the above-mentioned methods, the sheet metal includes one of aluminium flake, copper sheet and iron plate or a variety of.
In the above-mentioned methods, treated that sheet metal carries out the cleaning solution of the cleaning includes ethyl alcohol, first for the polishing
One of pure and mild acetone is a variety of.
In the above-mentioned methods, blasting treatment is carried out to the sheet metal after the cleaning using corundum sand ball.
In the above-mentioned methods, the time of the blasting treatment is 3-8min.
In the above-mentioned methods, the surface of the sheet metal after the blasting treatment has micro-nano coarse structure.
In the above-mentioned methods, the plastic plate includes polypropylene plastics flitch, polyethylene panel and poly terephthalic acid second
One of PET plastic plate is a variety of.
In the above-mentioned methods, the temperature of the coining processing is 130-220 DEG C.
In the above-mentioned methods, the pressure of the coining processing is 8-12KPa.
In the above-mentioned methods, the time of the coining processing is 5-15min.
The present invention also provides a kind of hydrophobic plastic films prepared according to above method.
The present invention uses stamped method constructing super-drainage plastic film, i.e., replicates the micro-nano coarse structure of templated metal on piece
To the surface of each plastic plate, so that the surface of the plastic film of preparation has micro-nano coarse structure, this method can be effective
Frosting (such as plastic bottle closure) is solved to the sticking problem of viscous fluid, while not using any chemical reagents in preparation process
Or solvent, it is environment-protecting and non-poisonous, when being used for field of food threat will not be generated to human health.
Detailed description of the invention
Fig. 1 is the process flow chart (sheet metal after 1- cleaning for preparing super-hydrophobic plastic film；Gold after 2- blasting treatment
Belong to piece；Sheet metal after plastic plate that 3- is laminated and blasting treatment；4- coining；The super-hydrophobic plastic film of 5-).
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit in any way
The present invention.
The present invention use first MC004-MP-2 type metallographic specimen polished machine to sheet metal (purity: 90-99.0%, area:
10cm × 10cm, thickness: 30-50mm) carry out polishing processing 5~10min, then with ethyl alcohol, methanol and/or acetone to polishing at
Sheet metal after reason is cleaned by ultrasonic (ultrasonic power 600-900W) 30-50min, uses SR-4040P after drying at room temperature
Sand-blasting machine carries out blasting treatment to the sheet metal after cleaning, blast time 3-8min, so that sheet metal after blasting treatment
Surface has micro-nano coarse structure (coarse structure is resulting micron order and nanoscale coarse structure after blasting treatment),
In, the sandblasting ball of blasting treatment is corundum sand ball, having a size of 150-220 mesh (65-106 μm), so that the gold after blasting treatment
Belong to the even surface roughness of piece；Sheet metal includes one of aluminium flake, copper sheet and iron plate or a variety of.
Later, by PP (polypropylene), PE (polyethylene) or PET (polyethylene terephthalate) plastic plate (area:
10cm × 10cm, with a thickness of 0.1-3mm) it is laminated on the sheet metal top after blasting treatment, it is put on ZY-YHJ-A type marking press
Coining processing is carried out, the temperature for imprinting processing is 130-220 DEG C, and pressure is 8-12KPa (thickness of plastic plate is different and different),
Time is 5-15min；And to by coining treated plastic plate carries out demoulding processing (e.g., direct general's treated plastics
Plate is removed), to obtain hydrophobic plastic film.
Embodiment 1
Polishing processing is carried out to aluminium flake first, is then cleaned by ultrasonic with the aluminium flake after ethyl alcohol opposite grinding light processing, room temperature
Lower drying.
The aluminum flake surface after cleaning is handled using sand-blasting machine, the processing time is 3min, will be with a thickness of the PP of 1mm modeling
Flitch is laminated on above the aluminium flake after blasting treatment, is put on marking press and is carried out coining processing, and imprint temperature is 200 DEG C, pressure
12kPa imprints 10min, later to treated that PP plastic plate carries out demoulding processing by coining, obtains PP plastic film, right
The contact angle of the PP Plastic film surface is tested.
Embodiment 2
Polishing processing is carried out to aluminium flake first, is then cleaned by ultrasonic with the aluminium flake after ethyl alcohol opposite grinding light processing, room temperature
Lower drying.
Aluminum flake surface is handled using sand-blasting machine, the processing time is 3min, will be laminated with a thickness of the PE plastic plate of 1mm
It above aluminium flake after blasting treatment, is put on marking press and carries out coining processing, imprint temperature is 150 DEG C, pressure 12kPa, pressure
After printing 10min, to treated that PE plastic plate carries out demoulding processing by coining, PE plastic film is obtained, and to the PE plastics
The contact angle of film surface is tested.
Embodiment 3
Polishing processing is carried out to aluminium flake first, is then cleaned by ultrasonic with the aluminium flake after ethyl alcohol opposite grinding light processing, room temperature
Lower drying.
The aluminum flake surface after cleaning is handled using sand-blasting machine, the processing time is 3min, will be with a thickness of 0.1mm's
PET plastic plate is laminated on above the aluminium flake after blasting treatment, is put on marking press and is carried out coining processing, and imprint temperature is 200 DEG C,
After imprinting 10min, to treated that PET plastic plate carries out demoulding processing by coining, it is thin to obtain PET plastic by pressure 10kPa
Film, and the contact angle of the PET plastic film surface is tested.
Embodiment 4
Polishing processing is carried out to copper sheet first, is then cleaned by ultrasonic with the copper sheet after methanol opposite grinding light processing, room temperature
Lower drying.
The copper sheet surface after cleaning is handled using sand-blasting machine, the processing time is 5min, will be with a thickness of the PP of 2mm modeling
Flitch is laminated on above the copper sheet after blasting treatment, is put on marking press and is carried out coining processing, and imprint temperature is 130 DEG C, pressure
8kPa, after imprinting 15min, to coining, treated that PP plastic plate carries out demoulding processing, obtains PP plastic film, and mould to the PP
The contact angle of material film surface is tested.
Embodiment 5
Polishing processing is carried out to iron plate first, is then cleaned by ultrasonic with the iron plate after acetone opposite grinding light processing, room temperature
Lower drying.
The iron plate surface after cleaning is handled using sand-blasting machine, the processing time is 8min, will be with a thickness of the PE of 3mm modeling
Flitch is laminated on above the iron plate after blasting treatment, is put on marking press and is carried out coining processing, and imprint temperature is 220 DEG C, pressure
12kPa, after imprinting 5min, to coining, treated that PE plastic plate carries out demoulding processing, obtains PE plastic film, and mould to the PE
The contact angle of material film surface is tested.
Embodiment 6
Polishing processing is carried out to aluminium flake first, then with the mixed liquor of ethyl alcohol and methanol (volume ratio 1:1) to polishing at
Aluminium flake after reason is cleaned by ultrasonic, and is dried at room temperature.
The aluminum flake surface after cleaning is handled using sand-blasting machine, the processing time is 5min, will be with a thickness of 0.3mm's
PET plastic plate is laminated on above the aluminium flake after blasting treatment, is put on marking press and is carried out coining processing, and imprint temperature is 200 DEG C,
Pressure 10kPa, after imprinting 10min, to coining, treated that PET plastic plate carries out demoulding processing, obtains PET plastic film, and
The contact angle of the PET plastic film surface is tested.
Using the contact to the surface of plastic film obtained in embodiment 1 to 6 respectively of JGW-360A contact angle tester
Angle is tested, and the lyophoby effect on the surface of the plastic film is tested using viscous fluids such as Yoghourt and honey, is as a result seen
The following table 1.
Table 1
| Embodiment | Contact angle | Glue silk fabric liquid residual in surface |
| 1 | 153.2±2° | Nothing |
| 2 | 155.4±3° | Nothing |
| 3 | 152.3±1° | Nothing |
| 4 | 154.7±2° | Nothing |
| 5 | 155.2±1° | Nothing |
| 6 | 153.6±3° | Nothing |
By upper table 1 it is found that the present invention enables sheet metal surface to generate micro-nano coarse structure by sand-blast, then passes through
The micro-nano coarse structure of templated metal on piece is copied to the surface of each plastic plate by plate stamped method, so that preparation
The surface of PP, PE or PET plastic film has micro-nano coarse structure, so that the surface contact angle of the plastic film is all larger than
150 °, there is good hydrophobicity, and the Plastic film surface by the viscous fluids such as Yoghourt or honey drop after treatment, nothing are appointed
What is remained, and shows it with preferable lyophoby effect.
Therefore, super-hydrophobic plastic film prepared by the method for the present invention effectively increases the hydrophobic of Plastic film surface
Property, and solve the sticking problem of the viscous fluids such as Yoghourt, honey.
To sum up, plastic film prepared by the method for the present invention can be applied to food packaging applications, solve field of food
Thick shape liquid, such as Yoghourt, honey, to improve the utilization rate of fluid product in bottle, reaches in the sticking problem of plastic bottle closure
To the waste that fluid product in bottle is reduced or avoided, the purpose of saving is played.
It will be understood by those skilled in the art that above embodiments are only exemplary embodiments, without departing substantially from spirit of the invention
In the case where range, a variety of variations can be carried out, replaced and changed.
Claims (12)
1. a kind of method for preparing hydrophobic plastic film, which is characterized in that the described method includes:
Polishing processing is carried out to sheet metal, and the sheet metal after opposite grinding light processing is cleaned；
Blasting treatment is carried out to the sheet metal after cleaning；
Above sheet metal after plastic plate to be laminated on to blasting treatment, coining processing is carried out；And
To by coining, treated that plastic plate carries out demoulding processing, to obtain the hydrophobic plastic film.
2. the method according to claim 1, wherein the contact angle that the hydrophobic plastic film is surface is greater than
150 ° of super-hydrophobic plastic film.
3. the method according to claim 1, wherein the sheet metal includes one in aluminium flake, copper sheet and iron plate
Kind is a variety of.
4. the method according to claim 1, wherein treated that sheet metal carries out the cleaning for the polishing
Cleaning solution includes one of ethyl alcohol, methanol and acetone or a variety of.
5. the method according to claim 1, wherein using corundum sand ball to the sheet metal after the cleaning into
Row blasting treatment.
6. according to the method described in claim 5, it is characterized in that, the time of the blasting treatment is 3-8min.
7. the method according to claim 1, wherein the surface of the sheet metal after the blasting treatment has micro-nano
Coarse structure.
8. the method according to claim 1, wherein the plastic plate includes polypropylene plastics flitch, polyethylene modeling
One of flitch and polyethylene terephthalate plastic plate are a variety of.
9. the method according to claim 1, wherein the temperature of the coining processing is 130-220 DEG C.
10. the method according to claim 1, wherein the pressure of the coining processing is 8-12KPa.
11. the method according to claim 1, wherein the time of the coining processing is 5-15min.
12. a kind of hydrophobic plastic film of the preparation of method described in any one of -11 according to claim 1.
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| CN201711116495.4A CN109774111A (en) | 2017-11-13 | 2017-11-13 | A kind of hydrophobic plastic film and preparation method thereof |
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| CN201711116495.4A CN109774111A (en) | 2017-11-13 | 2017-11-13 | A kind of hydrophobic plastic film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113491956A (en) * | 2021-07-15 | 2021-10-12 | 河南工程学院 | LLDPE oil-water separation membrane and preparation method and application thereof |
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| CN101544770A (en) * | 2008-03-27 | 2009-09-30 | 财团法人首尔大学校产学协力财团 | Herstellung superhydrophober polymer |
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| US20110287203A1 (en) * | 2010-05-24 | 2011-11-24 | Integran Technologies Inc. | Articles with super-hydrophobic and/or self-cleaning surfaces and method of making same |
| CN103121006A (en) * | 2013-02-26 | 2013-05-29 | 南京航空航天大学 | Manufacturing method for super hydrophobic surface |
| CN103817059A (en) * | 2012-11-19 | 2014-05-28 | 深圳富泰宏精密工业有限公司 | Preparation method for aluminum super-hydrophobic surface and product |
| CN104024489A (en) * | 2011-12-27 | 2014-09-03 | 三菱丽阳株式会社 | Stamper, method for producing same, and method for producing molded body |
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| CN101248219A (en) * | 2005-08-26 | 2008-08-20 | 财团法人神奈川科学技术研究院 | Porous polymer membrane, method for producing same, and method for manufacturing stamper used for production of same |
| CN1810448A (en) * | 2006-03-02 | 2006-08-02 | 南京大学 | Method of improving surface hydrophobicity of polymer |
| CN101544770A (en) * | 2008-03-27 | 2009-09-30 | 财团法人首尔大学校产学协力财团 | Herstellung superhydrophober polymer |
| CN101698939A (en) * | 2009-11-09 | 2010-04-28 | 东南大学 | Method for preparing icing-resistant copper surface with super hydrophobicity and low adhesiveness |
| US20110287203A1 (en) * | 2010-05-24 | 2011-11-24 | Integran Technologies Inc. | Articles with super-hydrophobic and/or self-cleaning surfaces and method of making same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113491956A (en) * | 2021-07-15 | 2021-10-12 | 河南工程学院 | LLDPE oil-water separation membrane and preparation method and application thereof |
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Application publication date: 20190521 |