TY - JOUR ID - 1375 TI - Preparation of high performance PP/ reduced graphene oxide nanocomposites through a combined in situ polymerization and masterbatch method JO - Polyolefins Journal JA - POJ LA - en SN - 2322-2212 AU - Zhang, He-Xin AU - Lee, Seung-Ri AU - Lee, Dong-Ho AU - Zhang, Xue-Quan AU - Yoon, Keun-Byoung AD - Department of Polymer Science and Engineering, Kyungpook National University, Korea AD - Key Lab. of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academic of Science, China Y1 - 2017 PY - 2017 VL - 4 IS - 1 SP - 69 EP - 77 KW - Polypropylene KW - nanocomposites KW - in-Situ Polymerization KW - Graphene DO - 10.22063/poj.2016.1375 N2 - Despite the great potential of graphene as a nanofiller, achieving homogeneous dispersion remains the key challenge for effectively reinforcing polyolefin (such as polyethylene (PE) and polypropylene (PP)) nanocomposites. Therefore, in this research, we report a facile combined in situ polymerization and masterbatch method for fabricating PP/reduced graphene oxide (rGO) nanocomposites. In the polymerization stage, the synthesized catalyst exhibited a very high activity toward propylene polymerization, while the resultant PP/rGO with a very high isotactic index (I.I. = 99.3), broad molecular weight distribution (Mw/Mn = 14.9), and thermal stability was produced. After meltblending with commercial PP, a significantly increased modulus along with no observable change in tensile strength and elongation-at-break were achieved via the addition of a very small amount of rGO; these properties resulted from the suitable dispersion and good interface adhesion of the graphene sheet and PP matrix. Thus, this work provides a method for production of high performance PP. UR - http://poj.ippi.ac.ir/article_1375.html L1 - http://poj.ippi.ac.ir/article_1375_5b2b029163bd719a9d26031c85eb3439.pdf ER -