Synthesis of PE/MgO nanocomposites via in-situ polymerization using Ziegler-Natta catalyst

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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IRANCC20_731

تاریخ نمایه سازی: 28 اردیبهشت 1398

Abstract:

Nanocomposites, based on their matrix materials, are divided into several classes,particle-reinforced polymer are one of these classes that are used by organic polymers such as polyolefins which have been of interest in industry because of their lightness, good processing ability and low cost [1]. One of the methods for preparation of nanocomposites is the use of polymerization with olefins such as ethylene and propylene in the presence of nanoparticles [2]. In order to prepare a nanocomposite of PE/MgO, in-situ polymerization was carried out using a Ziegler-Natta catalyst (TiCl4/MgCl2) in the presence of different content of magnesium oxide (0.1 and 0.42 weight percent) nano-particles (~20 nm) at the same polymerization condition. The result showed that activity of the catalyst slightly enhanced by increasing of the MgO during polymerization (from 427 to 688 g PE. mmol cat-1. hr-1), however, further increacing of the chemical (up to 0.42%), a slightly decrease activity of the catalyst (500 g PE. mmol cat-1. hr-1). The structural properties of the results products were studied using FT-IR technique (Fig.1). The result showed that branching density and vinyl content of product was increased with increasing of MgO-particle to the reaction mixture.

Authors

Mohammad Mansouri,

Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Po. Box ۹۱۷۷۵-۱۴۳۶ Mashhad, Iran

Navid Ramezanian

Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Po. Box ۹۱۷۷۵-۱۴۳۶ Mashhad, Iran

Gholam Hossein Zohuri,

Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Po. Box ۹۱۷۷۵-۱۴۳۶ Mashhad, Iran

Kimia Moghadari

Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Po. Box ۹۱۷۷۵-۱۴۳۶ Mashhad, Iran