Exfoliated Graphene Leads to Exceptional Mechanical Properties of Polymer Composite Films

Pang, Yunsong1; Yang, Junlong2; Curtis, Tyler E.1; Luo, Shirui1,3; Huang, Dezhao1; Feng, Zhe1; Morales-Ferreiro, Jorge O.1,4; Sapkota, Pitambar5,6; Lei, Fan2; Zhang, Jianmin2,7; Zhang, Qinnan8; Lee, Eungkyu1; Huang, Yajiang9; Guo, Ruilan8; Ptasinska, Sylwia5,6; Roeder, Ryan K.1; Luo, Tengfei1,8,10

2019-02

10.1021/acsnano.8b04734

ACS Nano   影响因子和分区

1936-0851

1936-086X

Polymers with superior mechanical properties are desirable in many applications. In this work, polyethylene (PE) films reinforced with exfoliated thermally reduced graphene oxide (TrGO) fabricated using a roll-to-roll hot-drawing process are shown to have outstanding mechanical properties. The specific ultimate tensile strength and Young's modulus of PE/TrGO films increased monotonically with the drawing ratio and TrGO filler fraction, reaching up to 3.2 +/- 0.5 and 109.3 +/- 12.7 GPa, respectively, with a drawing ratio of 60X and a very low TrGO weight fraction of 1%. These values represent by far the highest reported to date for a polymer/graphene composite. Experimental characterizations indicate that as the polymer films are drawn, TrGO fillers are exfoliated, which is further confirmed by molecular dynamics (MD) simulations. Exfoliation increases the specific area of the TrGO fillers in contact with the PE matrix molecules. Molecular dynamics simulations show that the PE-TrGO interaction is stronger than the PE-PE intermolecular van der Waals interaction, which enhances load transfer from PE to TrGO and leverages the ultrahigh mechanical properties of TrGO.

graphene polyethylene nanocomposite drawing ratio mechanical strength

SCI ; EI

英语

NI期刊

其他

US Department of Energy Office of Science, Office of Basic Energy Sciences[DE-FC02-04ER15533 (NDRL 5222)]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000460199400015

AMER CHEMICAL SOC

20190306392074

Elastic moduli ; Fillers ; Graphene ; Mechanical properties ; Molecular dynamics ; Nanocomposites ; Oxide films ; Polyethylenes ; Polymer films ; Strength of materials ; Tensile strength ; Van der Waals forces

Nanotechnology:761 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Polymeric Materials:815.1 ; Organic Polymers:815.1.1 ; Materials Science:951

Web of Science

1.Univ Notre Dame, Dept Aerosp & Mech Engn, Notre Dame, IN 46556 USA
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA
4.Univ Talca, Fac Ingn, Camino Niches Kml, Curico 3340000, Chile
5.Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA
6.Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
7.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
8.Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA
9.Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn China, Chengdu 610065, Sichuan, Peoples R China
10.Ctr Sustainable Energy Notre Dame, Notre Dame, IN 46556 USA

Pang, Yunsong,Yang, Junlong,Curtis, Tyler E.,et al. Exfoliated Graphene Leads to Exceptional Mechanical Properties of Polymer Composite Films[J]. ACS Nano,2019,13(2):1097-1106.

Pang, Yunsong.,Yang, Junlong.,Curtis, Tyler E..,Luo, Shirui.,Huang, Dezhao.,...&Luo, Tengfei.(2019).Exfoliated Graphene Leads to Exceptional Mechanical Properties of Polymer Composite Films.ACS Nano,13(2),1097-1106.

Pang, Yunsong,et al."Exfoliated Graphene Leads to Exceptional Mechanical Properties of Polymer Composite Films".ACS Nano 13.2(2019):1097-1106.