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Scalable fabrication of high‐performance graphene/polyamide 66 nanocomposites with controllable surface chemistry by melt compounding
Author(s) -
Cakal Sarac Elcin,
Haghighi Poudeh Leila,
Berktas Ilayda,
Saner Okan Burcu
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49972
Subject(s) - graphene , nanocomposite , materials science , ultimate tensile strength , compounding , oxide , composite material , polyamide , fabrication , thermal stability , chemical engineering , nanotechnology , medicine , alternative medicine , pathology , engineering , metallurgy
Scalable and ease fabrication of high‐performance graphene reinforced polyamide 66 (PA66) nanocomposites by melt‐mixing were achieved by selecting ideal graphene reinforcement having high C/O ratio. In this study, single‐layer amine functionalized reduced graphene oxide and multi‐layer thermally exfoliated graphene oxide (TEGO) were used to investigate the influence of surface chemistry and dispersion state on crystallization behaviors, mechanical, and thermal properties of graphene reinforced PA66 nanocomposites. Both types of graphenes acted as nucleating agent but TEGO showed the better performance due to its intercalated structure formation mechanism and efficient viscous flow during melting. Mechanical results indicated that 0.5 wt% TEGO based PA66 nanocomposite showed the highest tensile properties by increasing tensile modulus and tensile strength up to 45% and 16.1%, respectively. In addition, TEGO reinforced nanocomposites showed more stable viscoelastic behavior by reaching a plateau at high temperatures and restraining long‐range motion of polymer chains.