A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet

Li, Yunlong1,2; Wang, Shijie1; Wang, Quan2; Xing, Malcolm3

2018-01-15

10.1016/j.compositesb.2017.09.024

COMPOSITES PART B-ENGINEERING   影响因子和分区

1359-8368

1879-1069

To compare enhancements of mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet, molecular models of polymer matrix reinforced by the same weight percentage of carbon nanotubes and graphene sheet are developed. Pull-out process and strain constant method are applied to find mechanical properties of the nano-composites by examining the interfacial interactions between nano-reinforcements and polymer matrices. The results show that about 18% higher in Young's modulus, 8.7% higher in tensile strength, and 5% higher in surface crack energy are obtained for the composites by incorporation of graphene sheet than those by incorporation of carbon nanotubes. Graphene sheet is found to play a better role in delaying the propagations of cracks. To explore the mechanisms on the enhanced tensile and fracture properties, the interfacial interaction energy and shear forces between the nano-reinforcements and polymer matrices, and total van der Waals energy of the polymer composites are examined and interpreted accordingly. (C) 2017 Elsevier Ltd. All rights reserved.

Polymer-matrix composites (PMCs) Fracture Mechanical properties Interface/interphase

SCI ; EI

英语

通讯

Program for Liaoning Innovative Research Team in University-LNIRT[LT2014003]

Engineering ; Materials Science

Engineering, Multidisciplinary ; Materials Science, Composites

WOS:000414620500004

ELSEVIER SCI LTD

20173804186433

Carbon nanotubes ; Cracks ; Elastic moduli ; Fracture ; Mechanical properties ; Mechanisms ; Nanocomposites ; Polymer matrix composites ; Reinforced plastics ; Reinforcement ; Strain ; Surface defects ; Tensile strength ; Van der Waals forces ; Yarn

Mechanisms:601.3 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Polymeric Materials:815.1 ; Polymer Products:817.1 ; Fiber Products:819.4 ; Solid State Physics:933 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Shenyang Univ Technol, Sch Mech Engn, Shenliao West Rd 111, Shenyang 110870, Liaoning, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Univ Manitoba, Dept Mech Engn, Winnipeg, MB R3T 5V6, Canada

Li, Yunlong,Wang, Shijie,Wang, Quan,et al. A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet[J]. COMPOSITES PART B-ENGINEERING,2018,133:35-41.

Li, Yunlong,Wang, Shijie,Wang, Quan,&Xing, Malcolm.(2018).A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet.COMPOSITES PART B-ENGINEERING,133,35-41.

Li, Yunlong,et al."A comparison study on mechanical properties of polymer composites reinforced by carbon nanotubes and graphene sheet".COMPOSITES PART B-ENGINEERING 133(2018):35-41.