CN104356420A - Method for grafting polyethylene film with acrylic acid under initiating action of air plasma under atmospheric pressure - Google Patents
Method for grafting polyethylene film with acrylic acid under initiating action of air plasma under atmospheric pressure Download PDFInfo
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- CN104356420A CN104356420A CN201410654922.4A CN201410654922A CN104356420A CN 104356420 A CN104356420 A CN 104356420A CN 201410654922 A CN201410654922 A CN 201410654922A CN 104356420 A CN104356420 A CN 104356420A
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Abstract
The invention discloses a method for grafting a polyethylene film with acrylic acid under the initiating action of air plasma under atmospheric pressure, which comprises the following steps: sequentially cleaning the polyethylene film with acetone, anhydrous ethanol and deionized water for 5-10 minutes, and drying at low temperature for later use; initiating surface grafting of the polyethylene film with the acrylic acid monomer by using air plasma under atmospheric pressure to perform surface treatment, wherein the power is 30-100W, the gas flow rate is 0.2-0.5 sccm, and the treatment time is 2-6 minutes; and taking out the film sample, washing the surface with deionized water, and drying. The method disclosed by the invention performs surface modification on the polyethylene film, thereby enhancing the hydrophilicity of the polyethylene film.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to air plasma under a kind of normal pressure and cause the method for polyethylene film graft acrylic acid.
Background technology
Materials application is very extensive, the improvement of living standards of the people, and the industrial construction of country and national defense construction, all be unable to do without material.Especially macromolecular material development rapidly, and major cause is its wider molecular weight distribution, lighter quality, less density, excellent mechanical property, the features such as insulating property and structure changeable.But a large amount of surface and interface problems, especially moistened surface sex chromosome mosaicism limit its application in some aspects.For adapting to the demand of society to material, be necessary to carry out wettability modification to the surface of polymkeric substance.
Polyethylene is a kind of thermoplastic resin obtained by vinyl polymerization, is called for short PE.Polyethylene is that crystalline high polymer relies on the advantages such as its light weight, inexpensive, nontoxic, tasteless, anticorrosive, low-k, is widely used in the every field such as packaging, daily necessities, electrical equipment.
But polyolefine (PP, PE, PS, PVC, PTFE, PMMA) is non-polar polymer, surface and interface problem makes it nonwetting, and dyeability, wear resistance and printing are poor, hinders the popularization of such material.
In recent years, the industry such as coating, paint and glass requires that inorganic materials has certain hydrophilicity gradually.More and more researcher pays close attention to the research of hydrophilic inorganic film.The developing into of nano material is prepared hydrophilic inorganic film and is provided reliable basis.Wherein about the most study of the inorganic thin film materials such as silicon-dioxide, titanium dioxide, zinc oxide.Silicon-dioxide is except not only having excellent wetting ability, and hardness is high, wear resistance is good, corrosion resistance is strong, the most important thing is that raw material sources are extensive.So the aspect such as antifog glass, medicine equipment, environmental purification is usually applied to this kind of material.Along with going deep into of research, by different substrate materials is used nanoparticulate thin films modification, be significant to improving substrate surface aspect of performance.
The method of polymer surface modification is more, substantially can be divided into chemistry and physically modified two kinds.Wherein the former mainly contains solution-treated method, uv irradiating method, ion implantation, low-temperature plasma facture etc.
Solution-treated method reaches by the dissolving between solvent and polymer surfaces, absorption or chemical reaction etc. the object increasing roughness and change surface polarity etc.Wang Bo etc. adopt potassium bichromate-vitriol oil, the agricultural PE film of potassium permanganate-vitriol oil System Modification.Liu L adopts silicon alkoxide infiltration means, improves the adhesive power between film and matrix.After MMA hydrolysis, hydrophobic surface becomes wetting ability, and major cause is that ester bond is wherein transformed into carboxyl, and carboxyl is hydrophilic.Although the equipment that this method requires is relative with operation simple, the long treatment time makes inefficiency, and importantly post-processing step is loaded down with trivial details, and treatment solution contaminate environment.Meanwhile, the material mechanical performance that the method obtains is had a greatly reduced quality.
Uv irradiating method is that ultraviolet high-energy is acted on material surface, makes the free radical that generation is a large amount of, these free radicals using as other functional groups site.Chen Wen extensively waits the method adopting UV-light to cause Solid-Phase Grafting Polymerization reaction, makes the surface grafting azo monomer of polyester (PET) film.Wirsen etc. then first adopt photo-grafting by maleic anhydride graft in polyester (PET) surface, after continue through in organic solvent or water carboxyl linked reaction link fluoridize probe and peptide etc., obtain the macromolecular polymkeric substance of surperficial lockable.The shortcoming of this method restricts by ultraviolet energy, makes its processing speed comparatively slow, be difficult to be promoted in the industrial production of reality.
Plasma processing method makes gaseous ion body by microwave or AC corona electric discharge etc., and high-energy electron wherein and metastable particle clash into polymer surface, make its chemical bond rupture or restructuring, and then produce free radical, can react with other functional groups.Wang etc. utilize the method to be grafted to by HPAA in PET surface of polyester, after the amido on its carboxyl and aniline reacted and be oxidized, substantially increase the electric conductivity of PET film.
Compared with wet chemistry method, plasma method avoids oven dry in the former, wastewater treatment supervisor, therefore save energy and environmental protection.Compared with radioactive rays process, electron beam treatment, corona treatment, plasma method depth of interaction is limited, and material matrix is substantially unaffected.Plasma surface treatment technology also can be carried out surface as required and be applied film.Instantly, in material modification, plasma method application prospect is extensive.
Summary of the invention
In view of this, air plasma under a kind of normal pressure is the object of the present invention is to provide to cause the method for polyethylene film graft acrylic acid.
For achieving the above object, the invention provides following technical scheme:
Under normal pressure, air plasma causes a method for polyethylene film graft acrylic acid, comprises the steps:
First acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 5 ~ 10min is used successively, cryodrying, for subsequent use; Under normal pressure, air plasma causes polyethylene film surface grafting Acrylic Acid Monomer and carries out surface treatment, and wherein, power is 30 ~ 100W, and gas flow is 0.2 ~ 0.5sccm, and the treatment time is 2 ~ 6min; Take out film sample, deionized water wash surface, dries.
Preferably, acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 8min is used successively.
Preferably, power is 60W, and gas flow is 0.3sccm, and the treatment time is 5min.
Preferably, take out film sample, behind deionized water wash surface, dry with air dry oven.
Under normal pressure of the present invention, air plasma causes the method for polyethylene film graft acrylic acid, has carried out surface modification, improve its wetting ability to polyethylene film.
Embodiment
Be described in detail to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1
First acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 5min is used successively, cryodrying, for subsequent use; Under normal pressure, air plasma causes polyethylene film surface grafting Acrylic Acid Monomer and carries out surface treatment, and wherein, power is 30W, and gas flow is 0.2sccm, and the treatment time is 2min; Take out film sample, deionized water wash surface, dries.
Embodiment 2
First acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 10min is used successively, cryodrying, for subsequent use; Under normal pressure, air plasma causes polyethylene film surface grafting Acrylic Acid Monomer and carries out surface treatment, and wherein, power is 100W, and gas flow is 0.5sccm, and the treatment time is 6min; Take out film sample, deionized water wash surface, dries.
Embodiment 3
First acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 8min is used successively, cryodrying, for subsequent use; Under normal pressure, air plasma causes polyethylene film surface grafting Acrylic Acid Monomer and carries out surface treatment, and wherein, power is 60W, and gas flow is 0.3sccm, and the treatment time is 5min; Take out film sample, deionized water wash surface, dries with air dry oven.
In those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. under normal pressure, air plasma causes a method for polyethylene film graft acrylic acid, it is characterized in that, comprises the steps:
First acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 5 ~ 10min is used successively, cryodrying, for subsequent use; Under normal pressure, air plasma causes polyethylene film surface grafting Acrylic Acid Monomer and carries out surface treatment, and wherein, power is 30 ~ 100W, and gas flow is 0.2 ~ 0.5sccm, and the treatment time is 2 ~ 6min; Take out film sample, deionized water wash surface, dries.
2. under normal pressure according to claim 1, air plasma causes the method for polyethylene film graft acrylic acid, it is characterized in that: use acetone, dehydrated alcohol, washed with de-ionized water polyethylene film 8min successively.
3. under normal pressure according to claim 1, air plasma causes the method for polyethylene film graft acrylic acid, and it is characterized in that: power is 60W, gas flow is 0.3sccm, and the treatment time is 5min.
4. under normal pressure according to claim 1, air plasma causes the method for polyethylene film graft acrylic acid, it is characterized in that: take out film sample, behind deionized water wash surface, dry with air dry oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410654922.4A CN104356420A (en) | 2014-11-18 | 2014-11-18 | Method for grafting polyethylene film with acrylic acid under initiating action of air plasma under atmospheric pressure |
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| CN201410654922.4A CN104356420A (en) | 2014-11-18 | 2014-11-18 | Method for grafting polyethylene film with acrylic acid under initiating action of air plasma under atmospheric pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105713223A (en) * | 2015-09-16 | 2016-06-29 | 中天光伏材料有限公司 | Surface modifying method of PET thin film |
| EP3444296A4 (en) * | 2016-04-25 | 2019-06-05 | Guangdong Zhongke Huatong New Materials Technology Co., Ltd. | Directly coated polyolefin film and preparation method therefor |
| CN110698598A (en) * | 2019-09-17 | 2020-01-17 | 上海交通大学 | Polyolefin material with surface grafted with polymer, and preparation method and application thereof |
| CN111286066A (en) * | 2020-02-28 | 2020-06-16 | 广州洁特生物过滤股份有限公司 | Preparation process of substrate hydrophilic surface and three-dimensional cell culture support |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432905A (en) * | 2011-08-16 | 2012-05-02 | 海宁市粤海彩印有限公司 | Modification method for using low-temperature plasma to initiate gas-phase grafting on surface of polyethylene film |
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2014
- 2014-11-18 CN CN201410654922.4A patent/CN104356420A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432905A (en) * | 2011-08-16 | 2012-05-02 | 海宁市粤海彩印有限公司 | Modification method for using low-temperature plasma to initiate gas-phase grafting on surface of polyethylene film |
Non-Patent Citations (1)
| Title |
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| 郑丽霞等: ""低温等离子体法制备超亲水PE薄膜及其性能研究"", 《浙江理工大学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105713223A (en) * | 2015-09-16 | 2016-06-29 | 中天光伏材料有限公司 | Surface modifying method of PET thin film |
| EP3444296A4 (en) * | 2016-04-25 | 2019-06-05 | Guangdong Zhongke Huatong New Materials Technology Co., Ltd. | Directly coated polyolefin film and preparation method therefor |
| AU2016404607B2 (en) * | 2016-04-25 | 2019-11-21 | Guangdong Zhongke Huatong New Materials Technology Co., Ltd. | Directly coated polyolefin film and preparation method therefor |
| CN110698598A (en) * | 2019-09-17 | 2020-01-17 | 上海交通大学 | Polyolefin material with surface grafted with polymer, and preparation method and application thereof |
| WO2021052071A1 (en) * | 2019-09-17 | 2021-03-25 | 浙江伟星新型建材股份有限公司 | Polyolefin material having polymer grafted on surface, and preparation method and application thereof |
| CN111286066A (en) * | 2020-02-28 | 2020-06-16 | 广州洁特生物过滤股份有限公司 | Preparation process of substrate hydrophilic surface and three-dimensional cell culture support |
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Application publication date: 20150218 |