Layered and scrolled nanocomposites with aligned semi-infinite graphene inclusions at the platelet limit

被引：134

作者：

Liu, Pingwei ^{[1
]}

Jin, Zhong ^{[1
,2
,3
]}

Katsukis, Georgios ^{[1
]}

Drahushuk, Lee William ^{[1
]}

Shimizu, Steven ^{[1
]}

Shih, Chih-Jen ^{[1
]}

Wetzel, Eric D. ^{[4
]}

Taggart-Scarff, Joshua K. ^{[4
]}

Qing, Bo ^{[5
]}

Van Vliet, Krystyn J. ^{[5
,6
]}

Li, Richard ^{[7
]}

Wardle, Brian L. ^{[7
]}

Strano, Michael S. ^{[1
]}

机构：

[1] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[2] Nanjing Univ, Key Lab Mesoscop Chem MOE, Nanjing 210093, Jiangsu, Peoples R China

[3] Nanjing Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Chem Life Sci, Nanjing 210093, Jiangsu, Peoples R China

[4] US Army Res Lab, Aberdeen Proving Ground, MD 21005 USA

[5] MIT, Dept Biol Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[6] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[7] MIT, Dept Aeronaut & Astronaut, Cambridge, MA 02139 USA

来源：

SCIENCE | 2016年 / 353卷 / 6297期

关键词：

LARGE-AREA; POLYCARBONATE; STIFFNESS; DESIGN; FILMS;

D O I：

10.1126/science.aaf4362

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Two-dimensional (2D) materials can uniquely span the physical dimensions of a surrounding composite matrix in the limit of maximum reinforcement. However, the alignment and assembly of continuous 2D components at high volume fraction remain challenging. We use a stacking and folding method to generate aligned graphene/polycarbonate composites with as many as 320 parallel layers spanning 0.032 to 0.11 millimeters in thickness that significantly increases the effective elastic modulus and strength at exceptionally low volume fractions of only 0.082%. An analogous transverse shear scrolling method generates Archimedean spiral fibers that demonstrate exotic, telescoping elongation at break of 110%, or 30 times greater than Kevlar. Both composites retain anisotropic electrical conduction along the graphene planar axis and transparency. These composites promise substantial mechanical reinforcement, electrical, and optical properties at highly reduced volume fraction.

引用

页码：364 / 367

页数：4

共 29 条

[1] Materials science - Nanotube composites [J].