UV and ozone treatment of polypropylene and poly(ethylene terephthalate)

Walzak, Mary Jane; Flynn, Susan; Foerch, Renate; Hill, Josephine M.; Karbashewski, Elizabeth; Lin, Amy; Strobel, Mark

doi:10.1163/156856195x01012

Cited by 140 publications

(102 citation statements)

References 9 publications

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“…5,30 Strobel et al 31 have reported that the LMWOM on the corona-treated polypropylene arises from the random cleavage of the polymer chain into a series of oligomers containing oxidized groups such as COOH, CHO or CH 2 OH. Such hydrophilic species can be dissolved into water.…”

Section: Resultsmentioning

confidence: 99%

“…Typical physical modification techniques are plasma exposure and UV light radiation, and much basic and applied research on these dry processing techniques has been conducted in recent decades. [4][5][6][7][8][9][10][11][12] There are two theoretically different techniques for the generation of plasma under an atmospheric pressure: the direct plasma technique using dielectric barrier discharge and the remote plasma technique using after glow. 13 Compared with the direct plasma technique, the remote plasma technique cannot easily create a homogeneous plasma over a wide area.…”

Section: Introductionmentioning

confidence: 99%

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Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Gotoh

Yasukawa

Kobayashi

2011

Polym J

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Two dry processes, atmospheric pressure plasma (APP) exposure and 172 nm ultraviolet (UV) excimer light irradiation, were carried out to enhance the hydrophilic nature of poly(ethylene terephthalate) (PET) film. The wettability change in the PET film surface after the processes were carried out was recorded by the wetting force measurements employing the Wilhelmy method. After the dry processes, drastic decreases in the advancing and receding contact angles of water were observed, especially for the APP exposure. The advancing angle on the treated PET surface was found to increase by rinsing with water or aging in air, whereas the receding one remained almost the same. The hydrophobic recovery diminished more rapidly for the UV-treated film. Surface characterizations of the PET film were performed. We discuss the influence of the dry processes on the physicochemical properties of the PET surface.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Gotoh

Yasukawa

Kobayashi

2011

Polym J

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“…Subsequently, the first therapeutic application for the purification of blood was reported in 1870 (Grootveld et al, 2004). Due to its high oxidation potential, several studies and applications have been performed using ozone such as water, soil and waste treatment (Ebihara et al, 2012;Mitsugi et al, 2014;Rice, 2012), surface treatment of polymeric materials (Walzak et al, 1995), industrial production with special use in food industry (Varga and Szigeti, 2016), health care, among others. Moreover, O 3 is considered an effective sterilant for various microorganisms.…”

Section: Evaluation Of Disposable Medical Device Packaging Materials mentioning

confidence: 99%

Evaluation of disposable medical device packaging materials under ozone sterilization

et al. 2017

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Introduction: Ozonization is an alternative sterilization process for heat-sensitive medical devices. However, the side effects of this process on packaging materials should be verified. Methods: Four types of commercial disposable packaging for medical devices were evaluated after undergoing ozone sterilization: crepe paper sheet, non-woven fabric sheet (SMS), medical grade paper-plastic pouch and Tyvec © -plastic pouch. For each material, the gas penetration through the microbiological barrier was measured. Other packaging properties, such as chemical composition, color, tactile and mechanical resistance, were also evaluated after sterilization, by using characterization techniques, namely microbiological indicators, infrared spectroscopy, tensile test and optical microscopy. Results: All commercial disposable packaging showed good ozone penetration. Crepe paper and SMS were chemically and mechanically modified by ozone, while Tyvec © only suffered mechanical modification. Paper-plastic pouch was the packaging material which just experienced an acceptable reduction in tensile resistance, showing no variations on chemical or visual properties. Conclusion: The results suggest that medical grade paper-plastic pouch is the most appropriate disposable medical device packaging to be sterilized by ozone when compared to other materials.

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“…This is primarily because the process can be conducted under atmospheric pressure, resulting in lower equipment and running costs. The individual and combined effects of UV light and ozone have been studied for various polymer surfaces, including styrene-butadine-styrene rubber (SBS) 16 , polydimethylsiloxane (PDMS) 8,17 , polyethylene (PE) 18 , polyethylene terephthalate (PET) 19 , polypropylene (PP) 20 , polyetheretherketone (PEEK) 21 , as well as other surfaces. Here, we present an experimental and molecular modeling study for the anchoring of the CNT onto the organic polymers polyamide and polypropylene (Figure 1), which in addition to study the design of new surfaces, may lead to the design of sensors and CNT based composites 22 .…”

Section: Introductionmentioning

confidence: 99%

Deposition of Carbon Nanotube Films on Polyamide and Polypropylene Substrates: A Computer Simulation Approach

et al. 2016

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In this work we study hydroxylated carbon nanotube (CNT) assembly on polyamide (PA) and polypropylene (PP) polymers activated by UV radiation from a theoretical and experimental perspective. Molecular computer simulation was done to understand the stable conformations and bulk properties (molecular dynamics) of the polymers before and after exposure to UV radiation at the molecular level. Our experiments suggest that PA presents more -OH active groups, producing a more hydrophilic surface, whereas PP exhibits less potential UV activation. These results suggest that it is possible a facile covalent functionalization method to tune organic polymer surface properties through SWCNT anchoring for nanotechnological applications requiring defined surface roughness and chemical functionality on inexpensive polymers.

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UV and ozone treatment of polypropylene and poly(ethylene terephthalate)

Cited by 140 publications

References 9 publications

Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Evaluation of disposable medical device packaging materials under ozone sterilization

Deposition of Carbon Nanotube Films on Polyamide and Polypropylene Substrates: A Computer Simulation Approach

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