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CHARACTERIZATION OF SOME MICROSTRUCTURED POLYMER BLENDS BY MECHANICAL TESTS AND ATR-FTIR SPECTROMETRY

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Author(s): Zenovia Moldovan | Florica Ionescu | Ioana Vasilescu | Simona Litescu | G.L. Radu

Journal: Analele Universitatii Bucuresti : Chimie
ISSN 1220-871X

Volume: XVI;
Issue: I;
Start page: 49;
Date: 2007;
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Keywords: polymer blends | mechanical tests | ATR-FTIR spectrometry

ABSTRACT
In our study, a series of thermoplastic vulcanizate blends based on ethylene propylene diene terpolymer (EPDM) rubber and high-density polyethylene (HDPE), have been prepared by using different chemical systems of vulcanization. The obtained microstructured polymer blends have been characterized by physical-mechanical tests and by Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectrometry. The dynamic mechanical analysis correlated with ATR-FTIR spectral characteristics reveals that semi-EV and EV systems containing as cure agents sulfur and two accelerators (Tetramethylthiuram disulfide (TH) and 2 Mercaptobenzothiazole (M)) show improved properties as against conventional cure systems.
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