Limiting the Migration of Bisphenol A from Polycarbonate Using Dielectric Barrier Discharge

Soliman, Emad A.; Samir, Ahmed; Hassan, Ali M.; Eldin, M.S. Mohy; El-Naim, Gamal Abd

doi:10.4236/ojsta.2014.33005

Cited by 5 publications

(3 citation statements)

References 27 publications

(21 reference statements)

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“…The generated arcs between two metal plates can be easily seen. In order to identify the suitable treatment time, different preparation times (15,30,45 second, 1 min and 2 min) were selected.…”

Section: Preparation Of the Substratesmentioning

confidence: 99%

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Producing of high-transparent antiscratch nanohybrid thin films on polycarbonate substrate

Kiomarsipour

Eshaghi

Ramazani

et al. 2022

Preprint

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In the present work, a new aqueous sol–gel procedure has been used for producing hard transparent organic–inorganic nanohybrid coatings on polycarbonate (PC) substrate for improving its optical and mechanical properties. Sol-gel thins films were prepared by mixing Si and Al aqueous precursors and applied them on the cold plasma treated PC substrate. TEOS, GPTMS and aluminum tri sec-butoxide were used as main precursors. In order to improve the adhesion strength onto polymer, PC substrates were treated by Dielectric Barrier Discharge (DBD) system being conducted at atmosphere pressure in open air. The effects of sol ratios, curing temperature and aging time on the prepared coatings properties were investigated. Chemical, structural, morphological, optical and mechanical characteristics of the samples were studied by ATR-FTIR, EDS, XRD, FE-SEM, TEM, UV/vis spectroscopy, pencil hardness and eraser scratch methods. The obtained results indicated that the water contact angle of PC (73.24°) decreased to 6.32° by 45 second plasma treatment due to added functional groups on the treated surfaces. All of the films showed higher optical transmittance (89%) than the raw PC (86%) that was stemmed from the lower refractive index of the prepared films. Films indicated good adhesion onto the plasma treated substrates (5B). The pencil hardness of the PC substrate (4B) improved to 3H (8 pencil grade increment) with just a single layer coating (about 200 nm thickness) due to the preparation of new hard structures of interlocked Si and Al atoms.

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Section: Preparation Of the Substratesmentioning

confidence: 99%

“…It is clear that that PC surface was completely smooth but after treatment being rough. The etching process was conducted through the physical removal of molecules by the impact of energetic active pieces and by the breaking up of loose bonds [30].…”

Section: Dbd Preparation Of the Pc Substratesmentioning

confidence: 99%

Producing of high-transparent antiscratch nanohybrid thin films on polycarbonate substrate

Kiomarsipour

Eshaghi

Ramazani

et al. 2022

Preprint

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“…Polycarbonate plastic (PC) is characterised by its specific features, such as transparency, high toughness, high electrical insulation, high temperature resistance, and ease of machining and fabricating [1,2,3,4,5,6]. Due to this, PC material is widely used in optical applications (plastic lenses in eyewear), in food contact materials (water, milk and beverage bottles) [7], in medical devices (high-pressure syringes, surgical instruments, neonatal incubators) [8], and in digital optical data storage discs (CD, DVD, Blu-ray), to list only a few. However, like all plastic materials, PC is characterised by low surface free energy, resulting in poor wetting and adhesion properties [6,9,10].…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Polycarbonate by an Atmospheric Pressure Argon Microwave Plasma Sheet

et al. 2019

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The specific properties of an atmospheric pressure plasma make it an attractive tool for the surface treatment of various materials. With this in mind, this paper presents the results of experimental investigations of a polycarbonate (PC) material surface modification using this new type of argon microwave (2.45 GHz) plasma source. The uniqueness of the new plasma source lies in the shape of the generated plasma—in contrast to other microwave plasma sources, which usually provide a plasma in the form of a flame or column, the new ones provides a plasma in the shape of a regular plasma sheet. The influence of the absorbed microwave power and the number of scans on the changes of the wettability and morphological and mechanical properties of the plasma-treated PC samples was investigated. The mechanical properties and changes in roughness of the samples were measured by the use of atomic force microscopy (AFM). The wettability of the plasma-modified samples was tested by measuring the water contact angle. In order to confirm the plasma effect, each of the above-mentioned measurements was performed before and after plasma treatment. All experimental tests were performed with an argon of flow rate up to 20 L/min and the absorbed microwave power ranged from 300 to 850 W. The results prove the capability of the new atmospheric pressure plasma type in modifying the morphological and mechanical properties of PC surfaces for industrial applications.

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Surface modification of polycarbonate using the light-activated chlorine dioxide radical

Jia

Asahara

Hsu

et al. 2020

Applied Surface Science

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Limiting the Migration of Bisphenol A from Polycarbonate Using Dielectric Barrier Discharge

Cited by 5 publications

References 27 publications

Producing of high-transparent antiscratch nanohybrid thin films on polycarbonate substrate

Producing of high-transparent antiscratch nanohybrid thin films on polycarbonate substrate

Surface Modification of Polycarbonate by an Atmospheric Pressure Argon Microwave Plasma Sheet

Surface modification of polycarbonate using the light-activated chlorine dioxide radical

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