Effects of GO oxidation degree on GO/BuMgClsupported Ti-based Ziegler–Natta catalyst performance and nanocomposite properties
writer：He-Xin Zhang, Min-Gi Bae, Jae-Hyeong Park, Eun-Bin Ko, Dong-Ho Lee, Xue-Quan Zhang, Keun-Byoung Yoon
keywords：graphene, Ziegler-Natta
source：期刊
specific source：RSC Adv., 2016, 6, 20734
Issue time：2016年
In the present research, three graphene oxide (GO)/n-butyl-magnesium chloride (BuMgCl)-supported Tibased Ziegler–Natta catalysts were synthesized by the reaction of Grignard reagent with GO at various oxidation degrees, followed by anchoring of TiCl4. The effects of GO oxidation degree and of the reaction conditions on in situ ethylene polymerization were investigated. The obtained PE/reduced GO (rGO) product was subsequently used as a masterbatch for melt-blending with commercial PE. The resultant PE/rGO nanocomposites, even at low rGO loads, due to the good dispersion and to the good interface adhesion of the graphene sheet and the PE matrix, exhibited significant increase in heat distortion temperature, thermal decomposition temperature, tensile strength and modulus, in addition to acceptable reduction in elongation at break.