Preparation of high performance PP/ reducedgraphene oxide nanocomposites through a combinedin situ polymerization and masterbatch method
- سال انتشار: 1395
- محل انتشار: فصلنامه پلی اولفین ها، دوره: 4، شماره: 1
- کد COI اختصاصی: JR_POJ-4-1_005
- زبان مقاله: انگلیسی
- تعداد مشاهده: 344
نویسندگان
Department of Polymer Science and Engineering, Kyungpook National University, KoreaKey Lab. of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy ofScience, China
Department of Polymer Science and Engineering, Kyungpook National University, Korea
Department of Polymer Science and Engineering, Kyungpook National University, Korea
Key Lab. of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy ofScience, China
چکیده
Despite the great potential of graphene as a nanofller, achieving homogeneous dispersion remains the key challenge for effectively reinforcing polyolefn (such as polyethylene (PE) and polypropylene (PP)) nanocomposites.Therefore, in this research, we report a facile combined in situ polymerization and masterbatch method for fabricatingPP/reduced graphene oxide (rGO) nanocomposites. In the polymerization stage, the synthesized catalyst exhibiteda 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 signifcantly increased modulus along with no observable change in tensile strengthand elongation-at-break were achieved via the addition of a very small amount of rGO; these properties resulted fromthe suitable dispersion and good interface adhesion of the graphene sheet and PP matrix. Thus, this work provides amethod for production of high performance PP. Polyolefns J (2017) 4: 69-77کلیدواژه ها
Polypropylene; nanocomposites; in situ polymerization; grapheneاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.