Functionalized Low Defect Graphene Nanoribbons and Polyurethane Composite Film for Improved Gas Barrier and Mechanical Performances

被引：120

作者：

Xiang, Changsheng ^{[1
]}

Cox, Paris J. ^{[2
]}

Kukovecz, Akos ^{[4
,5
]}

Genorio, Bostjan ^{[1
,6
]}

Hashim, Daniel P. ^{[2
]}

Yan, Zheng ^{[1
]}

Peng, Zhiwei ^{[1
]}

Hwang, Chih-Chau ^{[1
]}

Ruan, Gedeng ^{[1
]}

Samuel, Errol L. G. ^{[1
]}

Sudeep, Parambath M. ^{[2
,7
]}

Konya, Zoltan ^{[4
,8
]}

Vajtai, Robert ^{[2
]}

Ajayan, Pulickel M. ^{[1
,2
,3
]}

Tour, James M. ^{[1
,2
,3
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

[2] Rice Univ, Dept Mech Engn & Mat Sci, Houston, TX 77005 USA

[3] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA

[4] Univ Szeged, Dept Appl & Environm Chem, H-6720 Szeged, Hungary

[5] MTA SZTE Lendulet Porous Nanocomposites Res Grp, H-6720 Szeged, Hungary

[6] Univ Ljubljana, Fac Chem & Chem Technol, Ljubljana 1000, Slovenia

[7] Cochin Univ Sci & Technol, Dept Phys, Cochin 682022, Kerala, India

[8] MTA SZTE React Kinet & Surface Chem Res Grp, H-6720 Szeged, Hungary

来源：

ACS NANO | 2013年 / 7卷 / 11期

关键词：

graphene nanoribbon composite; gas barrier; mechanical properties; CARBON NANOTUBE; THERMAL-DEGRADATION; NANOCOMPOSITES;

D O I：

10.1021/nn404843n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A thermoplastic polyurethane (TPU) composite film containing hexadecyl-functionalized low-defect graphene nanoribbons (HD-GNRs) was produced by solution casting. The HD-GNRs were well distributed within the polyurethane matrix, leading to phase separation of the TPU. Nitrogen gas effective diffusivity of TPU was decreased by 3 orders of magnitude with only 0.5 wt % HD-GNRs. The incorporation of HD-GNRs also improved the mechanical properties of the composite films, as predicted by the phase separation and indicated by tensile tests and dynamic mechanical analyses. The improved properties of the composite film could lead to potential applications in food packaging and lightweight mobile gas storage containers.

引用

页码：10380 / 10386

页数：7

共 31 条

[1] Modeling the barrier properties of polymer-layered silicate nanocomposites [J].