CN1810448A - Method of improving surface hydrophobicity of polymer - Google Patents
Method of improving surface hydrophobicity of polymer Download PDFInfo
- Publication number
- CN1810448A CN1810448A CN200610038573.9A CN200610038573A CN1810448A CN 1810448 A CN1810448 A CN 1810448A CN 200610038573 A CN200610038573 A CN 200610038573A CN 1810448 A CN1810448 A CN 1810448A
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- China
- Prior art keywords
- film
- sand
- polymer
- modified silicone
- amino
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- Pending
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- 229920000642 polymer Polymers 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims description 34
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 24
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 229920001296 polysiloxane Polymers 0.000 claims description 20
- 239000010431 corundum Substances 0.000 claims description 11
- 229910052593 corundum Inorganic materials 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 10
- 239000004800 polyvinyl chloride Substances 0.000 claims description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 239000011527 polyurethane coating Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims 1
- 239000004417 polycarbonate Substances 0.000 claims 1
- 239000002352 surface water Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 20
- 239000007787 solid Substances 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000000835 fiber Substances 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000003075 superhydrophobic effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The present invention belongs to the field of solid surface modifying technology, and is especially method of improved the surface wettability of polymer plate, film and coating. At room temperature, high pressure airflow with sand of different meshes is used to sand blast the surface of polymer, film and coating so as to obtain surface with high or super high hydrophobicity. The method is simple, low in cast, obvious in effect and high in repeatability, and makes it possible to alter the surface wettability of various polymer plate, material in special shape, film and coating at normal temperature.
Description
One, technical field
The invention belongs to polymer plate, film, the hydrophobic modified field of film coated surface.
Two, background technology:
The hydrophobic modified of the surface of solids has a wide range of applications in industrial and agricultural production, daily life.After the surface of solids modification, a series of character such as its absorption, infiltration, dispersion change, and especially super hydrophobic surface has self-cleaning function and prevents contamination by dust and precipitation adhesion.The surface-hydrophobicized of material suppresses microorganism in the adhesion to hull surface, suppresses the blood coagulation phenomenon of polymer surfaces.The wetability of the surface of solids by the surface of material can and the pattern of material surface determine.The roughness method that changes the surface of solids at present has laser ablation, plasma etching, sand paper grinding, chemical corrosion method.What change solid surface energy has plasma surface grafting method, an irradiating surface grafting method.Chinese patent (CN1660924A) adopts the sand paper of different model that polymeric material is polished, thereby changes wettability of Polymer Surfaces.This method technology is complicated, needs polishing 5-10 time, and the polishing degree is difficult to control.And device therefor of the present invention is simple, effect is remarkable, easy and simple to handle, good reproducibility, is applicable to extensive, particularly film and film coated surface processing of heterotypic material.
Three, summary of the invention:
The objective of the invention is for a kind of new method of improving surface hydrophobicity of polymer is provided, the method is simple, effect is remarkable, easy and simple to handle, good reproducibility.Can change the hydrophobicity of polymer plate, film, film coated surface at normal temperatures, thereby obtain hydrophobic, super hydrophobic surface.
Preparation method of the present invention is as follows:
(1) at room temperature, utilize spray gun that 36-120 order sand ball evenly is sprayed onto polymer plate, film, film coated surface, the sandblast time is 10 seconds-20 minutes, and 30 seconds is best, and blasting pressure is 0.2-2.0MPa, and 0.8MPa is best.
(2) polymer plate after the blasting treatment, film, film coated surface are made cleaning, remove residual sand ball.
(3) above-mentioned sand ball comprises: diamond dust, quartz sand, corundum sand, iron sand, charing silica sand.
(4) above-mentioned polymer plate, film comprise: polytetrafluoroethylene (PTFE), polyethylene, polypropylene, polymethyl methacrylate, Merlon, polyvinyl-chloride plate material and film, filming comprises amino-modified silicone epoxy resin, amino-modified silicone polyurethane.
(5) above-mentioned film, coating thickness can be applicable to the present invention above 0.2mm.
The invention has the advantages that: method is simple, easy and simple to handle, effect is obvious, and the excursion of water contact angle is between the 24-55 degree, and after sandblast, water contact angle can reach 165 ° as polytetrafluoroethylene (PTFE).
Four, the specific embodiment
Embodiment 1
With the order number is that 36 orders palm fibre corundum is sprayed onto polytetrafluoroethylene (PTFE), polypropylene, polyethylene, polyvinyl chloride, Merlon, polymethylmethacrylasheet sheet material or amino-modified silicone epoxy resin, amino-modified silicone polyurethane coating equably, after distilled water washing drying, record with the contact angle of water as shown in table 1:
The contact angle of various material surfaces and water among table 1 embodiment 1 (°)
| Polymeric material | Polytetrafluoroethylene (PTFE) | Polypropylene | Polyvinyl chloride | Merlon | Polyethylene | Amino-modified silicone epoxy resin | Amino-modified silicone polyurethane | Polymethyl methacrylate |
| Contact angle before handling | 110° | 94° | 68° | 74° | 101° | 105° | 103° | 68° |
| Handle the back contact angle | 144° | 132° | 119° | 105° | 140° | 145° | 143° | 124° |
Embodiment 2
With the order number is that 60 orders palm fibre corundum is sprayed onto polytetrafluoroethylene (PTFE), polypropylene, polyethylene, polyvinyl chloride, Merlon, polymethylmethacrylasheet sheet material or amino-modified silicone epoxy resin, amino-modified silicone polyurethane coating equably, after distilled water washing drying, record with the contact angle of water as shown in table 2:
The contact angle of various material surfaces and water among table 2 embodiment 2 (°)
| Polymeric material | Polytetrafluoroethylene (PTFE) | Polypropylene | Polyvinyl chloride | Merlon | Polyethylene | Amino-modified silicone epoxy resin | Amino-modified silicone polyurethane | Polymethyl methacrylate |
| Contact angle before handling | 110° | 94° | 68° | 74° | 101° | 105° | 103° | 68° |
| Handle the back contact angle | 160° | 120° | 107° | 94° | 130° | 142° | 140° | 133° |
Embodiment 3
With the order number is that 120 orders palm fibre corundum is sprayed onto polytetrafluoroethylene (PTFE), polypropylene, polyethylene and polyvinyl chloride, Merlon, polymethylmethacrylasheet sheet material and amino-modified silicone epoxy resin, amino-modified silicone polyurethane coating equably, after distilled water washing drying, record with the contact angle of water as shown in table 3:
The contact angle of various material surfaces and water among table 3 embodiment 3 (°)
| Polymeric material | Polytetrafluoroethylene (PTFE) | Polypropylene | Polyvinyl chloride | Merlon | Polyethylene | Amino-modified silicone epoxy resin | Amino-modified silicone polyurethane | Polymethyl methacrylate |
| Contact angle before handling | 110° | 94° | 68° | 74° | 101° | 105° | 103° | 68° |
| Handle the back contact angle | 165° | 120° | 122° | 98° | 130° | 148° | 145° | 144° |
Embodiment 4
With the order number is that 180 orders palm fibre corundum is sprayed onto polytetrafluoroethylene (PTFE), polypropylene, polyethylene, polyvinyl chloride, Merlon, polymethylmethacrylasheet sheet material or amino-modified silicone epoxy resin, amino-modified silicone polyurethane coating equably, after distilled water washing drying, record with the contact angle of water as shown in table 4:
The contact angle of various material surfaces and water among table 4 embodiment 4 (°)
| Polymeric material | Polytetrafluoroethylene (PTFE) | Polypropylene | Polyvinyl chloride | Merlon | Polyethylene | Amino-modified silicone epoxy resin | Amino-modified silicone polyurethane | Polymethyl methacrylate |
| Contact angle before handling | 110° | 94° | 68° | 74° | 101° | 105° | 103° | 68° |
| Handle the back contact angle | 156° | 138° | 119° | 97° | 130° | 142° | 144° | 123° |
Embodiment 5
With the order number is that 36,60,120,180 orders palm fibres corundum is sprayed onto thickness respectively equably and is respectively 0.2mm, 5mm, 10mm polytetrafluoroethylene film, after distilled water washing drying, records with the contact angle of water as shown in table 5.
The contact angle of PolytetrafluoroethylFilm Film and water among table 5 embodiment 5 (°)
| Polytetrafluoroethylene film thickness | 0.2mm | 5mm | 10mm |
| Before the sandblast | 110° | 110° | 110° |
| 36 orders palm fibre corundum | 147° | 148° | 151° |
| 60 orders palm fibre corundum | 158° | 154° | 158° |
| 120 orders palm fibre corundum | 151° | 155° | 162° |
| 180 orders palm fibre corundum | 155° | 154° | 155° |
The sandblast condition is among the above embodiment: the sandblast time of embodiment 1,2 is 30 seconds, and 3, the 4 sandblast times of embodiment are 1 minute, and the 5 sandblast times of embodiment are 10 seconds.Blasting pressure is 0.8Mpa.Used contact angle instrument is KSVInstruments Ltd, the CAM200 of Finland, during measurement used test liquid long-pending be 5 μ L, each material surface is surveyed 5 different points, gets the mean value of 5 some institute measured values.
Claims (3)
1, a kind of method of improving surface hydrophobicity of polymer, the inventive method feature is: at room temperature with compressed air the sand ball is carried out blasting treatment to polymer plate, film, film coated surface, change polymer plate, film, film coated surface pattern, the hydrophobicity of polymer plate, film, film coated surface is changed, the excursion of polymer plate, film, film coated surface water contact angle is between the 24-55 degree, used air pressure is 0.2-2.0Mpa, and 0.8Mpa is best.The sandblast time is 10 seconds-20 minutes, and 30 seconds is best.
2, the method for improvement surface hydrophobicity of polymer according to claim 1, it is characterized in that described polymer comprises that polytetrafluoroethylene (PTFE), polyethylene, polypropylene, polyvinyl chloride, polymethyl methacrylate, polycarbonate plate and thickness surpass the film of 0.2mm, filming comprises amino-modified silicone epoxy resin, amino-modified silicone polyurethane coating film.
3, the method for improvement surface hydrophobicity of polymer according to claim 1 is characterized in that described sand blasting-used sand ball comprises diamond dust, quartz sand, corundum sand, iron sand, charing silica sand, and sand blasting-used sand ball order number is 36 180 orders, and 120 orders are best.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610038573.9A CN1810448A (en) | 2006-03-02 | 2006-03-02 | Method of improving surface hydrophobicity of polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610038573.9A CN1810448A (en) | 2006-03-02 | 2006-03-02 | Method of improving surface hydrophobicity of polymer |
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| CN1810448A true CN1810448A (en) | 2006-08-02 |
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| CN200610038573.9A Pending CN1810448A (en) | 2006-03-02 | 2006-03-02 | Method of improving surface hydrophobicity of polymer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366712A (en) * | 2011-10-09 | 2012-03-07 | 中国科学院宁波材料技术与工程研究所 | Method for modifying microporous membrane wettability by utilizing low pressure-forced Cassie state effect |
| WO2013037088A1 (en) * | 2011-09-16 | 2013-03-21 | General Electric Company | A method for improving performance of a membrane used in membrane distillation |
| CN104861193A (en) * | 2015-05-11 | 2015-08-26 | 东南大学 | Treatment method for moisture-proof surface of resin-based insulating material |
| CN109774111A (en) * | 2017-11-13 | 2019-05-21 | 洛阳尖端技术研究院 | A kind of hydrophobic plastic film and preparation method thereof |
-
2006
- 2006-03-02 CN CN200610038573.9A patent/CN1810448A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013037088A1 (en) * | 2011-09-16 | 2013-03-21 | General Electric Company | A method for improving performance of a membrane used in membrane distillation |
| CN102366712A (en) * | 2011-10-09 | 2012-03-07 | 中国科学院宁波材料技术与工程研究所 | Method for modifying microporous membrane wettability by utilizing low pressure-forced Cassie state effect |
| CN104861193A (en) * | 2015-05-11 | 2015-08-26 | 东南大学 | Treatment method for moisture-proof surface of resin-based insulating material |
| CN109774111A (en) * | 2017-11-13 | 2019-05-21 | 洛阳尖端技术研究院 | A kind of hydrophobic plastic film and preparation method thereof |
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