Open AccessThermal and Mechanical Properties of Polyethylene/Doped-TiO2Nanocomposites Synthesized Using In Situ Polymerization
Author(s) -
S. H. Abdul Kaleel,
Bijal Kottukkal Bahuleyan,
Masihullah Jabarulla Khan,
Mamdouh A. AlHarthi
Publication year - 2011
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2011/964353
Subject(s) - materials science , nanocomposite , polyethylene , thermogravimetric analysis , differential scanning calorimetry , in situ polymerization , polymerization , polymer , composite material , branching (polymer chemistry) , methylaluminoxane , chemical engineering , polymer chemistry , metallocene , physics , engineering , thermodynamics
Ethylene polymerization was carried out using highly active metallocene catalysts (Cp2ZrCl2 and Cp2TiCl2) in combination with methylaluminoxane. Titanium (IV) oxide containing 1% Mn as dopant was used as nanofillers. The effects of filler concentration, reaction temperature, and pressure on the thermal and mechanical properties of polymer were analyzed. The improvement of nanoparticles dispersion in the polyethylene matrix was checked by WAXD. The thermal properties were analyzed using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The filler impact on the melting temperature of polyethylene synthesized using Cp2ZrCl2 was very minimal which is due to the degree of short-chain branching. The ash content was also analyzed for each nanocomposite and found to be in line with the activity of the catalyst. There was a significant increase in the mechanical properties of the polyethylene by addition of filler
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom