Investigation of the Ultraviolet Irradiation on Blend Films of PS/PCL

João de Deus Pereira de Moraes Segundo, Maria Oneide Silva de Moraes, Catarina Barbosa Levy and Walter Ricardo Brito
Additional contact information
João de Deus Pereira de Moraes Segundo: University of Campinas, Brazil
Maria Oneide Silva de Moraes: Federal University of Amazonas, Brazil
Catarina Barbosa Levy: Lutheran University of Brazil, Brazil
Walter Ricardo Brito: Federal University of Amazonas, Brazil

European Journal of Engineering and Technology Research, 2021, vol. 6, issue 2, 29-33

Abstract: In this work, an investigation was carried out on the effect of ultraviolet light on different films. Polystyrene (PS), poly (caprolactone) (PCL), and blended films of PS/PCL were produced. Ethyl acetate (AE) was used as a solvent, and PS and PCL solutions were prepared by dissolving 250 mg in 2.5mL of AE under mechanical stirring at room temperature. The blended solutions of PS/PCL (PS:PCL) were prepared with different mass proportions, such as 90:10, 80:20, 70:30, and 60:40 into 2.5 mL of EA. The solutions were dripped with 500 µL on a glass substrate, and the films were produced with mechanical rotation of N=2000 RPM for 15 seconds using a Spin coater. The films were submitted to ultraviolet light for t=60 minutes and morphologically analyzed by optical microscopy, chemically by IR spectroscopy, and superficially by contact angle and wettability; this last analysis also investigated the effect of ultraviolet light at t=0, t=30, and t=60 minutes. The exposure of ultraviolet light on the films affected its morphologies. IR spectra showed that the photodegradation increased for larger PCL amounts into the blend. The contact angle measurements showed that after exposure to ultraviolet light, the hydrophobicity of the films increased. Therefore, the presence of PCL in the polymer mixture promoted the photodegradation of the PS/PCL films, making it attractive for developing new packaging.

Keywords: Polymeric blend; poly (caprolactone); polystyrene; photodegradation (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
https://eu-opensci.org/index.php/ejeng/article/view/62351 Abstract page (text/html)
https://eu-opensci.org/index.php/ejeng/article/download/62351/12616 Full text (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:6:y:2021:i:2:id:62351

DOI: 10.24018/ejeng.2021.6.2.2351

Access Statistics for this article

More articles in European Journal of Engineering and Technology Research from European Open Science
Bibliographic data for series maintained by Support ().