| Titre : |
The effect of TMPTMA addition on electron-beam irradiated LDPE, EVA and blend properties |
| Type de document : |
texte imprimé |
| Auteurs : |
Maziyar Sabet, Auteur ; R. M. Savory, Auteur ; A. Hassan, Auteur ; C. T. Ratnam, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 386-392 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alliages polymères -- propriétés mécaniques
Allongement à la rupture
Copolymère éthylène acétate de vinyle
Faisceaux électroniques
Irradiation
Polyéthylène basse densité
Réticulation (polymérisation)
Traction (mécanique)
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In this work low density polyethylene (LDPE) and ethylene vinyl acetate (EVA) were blended in the presence of trimethylol propane trimethylacrylate (TMPTMA) (0 to 6phr). The resultant blends were irradiated with a 3 MeV electron-beam resulting in dosages of 0 to 240kGy using a rhodotron accelerator system. The effect of radiation exposure on the LDPE/EVA/TMPTMA blend properties were investigated with respect to gel content, tensile strength and elongation up to breakage of the blends. The findings indicate that increasing EVA and TMPTMA content yield tighter network structures through enhanced blend crosslinking, which is a direct consequence of irradiation. For pure EVA significant tensile strength improvements are evident as irradiation increases up to 210kGy. Irradiated blends exhibit improved tensile strength and elongation at breakage with respect to pure LDPE and EVA. Volume resistivity (VR) and dielectric constant (DC) of the blends were also studied as a function of EVA content, TMPTMA content and radiation dosage. Increasing EVA and TMPTMA content enhances DC and VR values, whereas, increasing irradiation dosage only effects VR values of the blends. The maximum VR value attained in this work corresponds to a radiation dosage of 170kGy and a blend comprising of 30wt% of EVA. |
| Note de contenu : |
- Material
- Sample preparation
- Irradiation
- Gel content
- Mechanical properties
- Volume resistivity
- Dielectric properties |
| DOI : |
10.3139/217.2723 |
| En ligne : |
https://drive.google.com/file/d/10tlOv8H3UK93wPzrQCdmtRgM0au66qWo/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19283 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVIII, N° 4 (08/2013) . - p. 386-392
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