Volume 134, Issue 40 45374
Article

Permeation of hydrocarbons through organosilane crosslinked LDPE

Katrin Berger

Katrin Berger

Polymer Competence Center Leoben GmbH, Leoben, 8700 Austria

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Christian Keimel

Christian Keimel

Polymer Competence Center Leoben GmbH, Leoben, 8700 Austria

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Eric Helfer

Eric Helfer

Chair in Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Leoben, 8700 Austria

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Bernd Haar

Bernd Haar

Polymer Competence Center Leoben GmbH, Leoben, 8700 Austria

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Alexander Eder

Alexander Eder

Chair in Polymer Processing, Montanuniversitaet Leoben, Leoben, 8700 Austria

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Hannelore Mattausch

Hannelore Mattausch

Chair in Polymer Processing, Montanuniversitaet Leoben, Leoben, 8700 Austria

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Gisbert Riess

Corresponding Author

Gisbert Riess

Chair in Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Leoben, 8700 Austria

Correspondence to: G. Riess (E-mail: [email protected])Search for more papers by this author
First published: 23 June 2017
Citations: 12

ABSTRACT

The importance of polymeric transportation systems has been steadily increasing over the years. It is a useful material in numerous applications, such as packaging, oil and gas pipes, and household items. One particular aspect of polyethylene (PE) is the permeability of small molecules, such as low-molecular-weight hydrocarbons. In the present study, PE sheets were crosslinked by grafting and subsequent hydrolysis of organosilanes during a reactive extrusion process. The formation of a network structure was characterized by sol/gel analysis and by rheological measurements. It is shown that as a result of crosslinking the permeation of linear alkanes through the PE is reduced. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45374.

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