Shape memory polyurethane nanocomposites with functionalized graphene

被引：74

作者：

Choi, Jin Taek ^{[1
]}

Dao, Trung Dung ^{[1
]}

Oh, Kyung Min ^{[1
]}

Lee, Hyung-il ^{[1
]}

Jeong, Han Mo ^{[1
]}

Kim, Byung Kyu ^{[2
]}

机构：

[1] Univ Ulsan, Energy Harvest Storage Res Ctr, Dept Chem, Ulsan 680749, South Korea

[2] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea

来源：

SMART MATERIALS AND STRUCTURES | 2012年 / 21卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

PHYSICAL-PROPERTIES; CARBON NANOTUBES; COMPOSITES; OXIDATION;

D O I：

10.1088/0964-1726/21/7/075017

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The roles of graphene in shape memory polyurethane nanocomposite (SMPUN) as a reinforcing filler, as a fixed structure for memorizing a specified original shape, and as a conductive filler to actuate shape recovery by resistive heating, were examined. The effectiveness of each role was modulated by functionalizing graphene with a hydroxyl group through oxidation with H2O2. The reinforcing effect of graphene and its role as a fixed structure were enhanced by the hydroxyl groups due to the increased grafting of polyurethane chains on graphene during the in situ preparation of SMPUN. However, the oxidation reduced the conductivity of SMPUN, resulting in deterioration of the resistive heating.

引用

页数：9

共 20 条

[1] Glass transition behavior of clay aerogel/poly(vinyl alcohol) composites [J].

Bandi, Suneel ;

Schiraldi, David A. .

MACROMOLECULES, 2006, 39 (19) :6537-6545

[2] Free Volumes in Polymer Nanocomposites [J].

Chen, H. M. ;

Lee, L. James ;

Yang, Jintao ;

Gu, Xiaohong ;

Jean, Y. C. .

POSITRON AND POSITRONIUM CHEMISTRY, 2009, 607 :177-+

[3] Electroactive shape-memory polyurethane composites incorporating carbon nanotubes [J].

Cho, JW ;

Kim, JW ;

Jung, YC ;

Goo, NS .

MACROMOLECULAR RAPID COMMUNICATIONS, 2005, 26 (05) :412-416

[4] Functionalized Graphene Sheet/Polyurethane Nanocomposites: Effect of Particle Size on Physical Properties [J].

Choi, Jin Taek ;

Kim, Dong Hoon ;

Ryu, Kwang Sun ;

Lee, Hyung-Il ;

Jeong, Han Mo ;

Shin, Cheol Min ;

Kim, Jung Ho ;

Kim, Byung Kyu .

MACROMOLECULAR RESEARCH, 2011, 19 (08) :809-814

[5] The durability of a conducting shape memory polyurethane actuator [J].

Goo, Nam Seo ;

Paik, Il Hyun ;

Yoon, Kwang Joon .

SMART MATERIALS & STRUCTURES, 2007, 16 (04) :N23-N26

[6] Free Volume of Interphases in Model Nanocomposites Studied by Positron Annihilation Lifetime Spectroscopy [J].

Harms, Stephan ;

Ratzke, Klaus ;

Faupel, Franz ;

Schneider, Gerald J. ;

Willner, Lutz ;

Richter, Dieter .

MACROMOLECULES, 2010, 43 (24) :10505-10511

[7] Organic-inorganic chemical hybrids having shape memory effect [J].

Jung, D. H. ;

Jeong, H. M. ;

Kim, B. K. .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (17) :3458-3466

[8] Polyurethanes having shape memory effects [J].

Kim, BK ;

Lee, SY ;

Xu, M .

POLYMER, 1996, 37 (26) :5781-5793

[9] Shape memory and physical properties of poly(ethyl methacrylate)/Na-MMT nanocomposites prepared by macroazoinitiator intercalated in Na-MMT [J].

Kim, Min Seok ;

Jun, Jae Kyung ;

Jeong, Han Mo .

COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (7-8) :1919-1926

[10] Laser-induced disassembly of a graphene single crystal into a nanocrystalline network [J].

Krauss, B. ;

Lohmann, T. ;

Chae, D. -H. ;

Haluska, M. ;

von Klitzing, K. ;

Smet, J. H. .

PHYSICAL REVIEW B, 2009, 79 (16)

← 1 2 →