Polyurethane/PEG-modified MWCNT composite film for the chemical vapor sensor application

被引：32
作者：
Lee, Jeongwoo [1 ]
Park, Eun Ju [1 ]
Choi, Jaewon [1 ]
Hong, Jinho [1 ]
Shim, Sang Eun [1 ]
机构：
[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea
来源：
SYNTHETIC METALS | 2010年 / 160卷 / 7-8期
关键词：
Chemical vapor sensor; Polyurethane; Carbon nanotube; Composite film; Swelling behavior; MULTIWALLED CARBON NANOTUBES; GAS-SENSING MATERIALS; MOLECULAR-TRANSPORT; BUTADIENE RUBBER; BLACK; TEMPERATURE; CANDIDATES; SOLVENTS;
D O I：
10.1016/j.synthmet.2009.12.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The changes of electrical resistance of the polymer composites on exposure to chemical vapors have been applied for the production of vapor sensors. In this study, to confirm the ability of elastomer as chemical vapors sensors, polyurethane/PEG-modified MWCNT composite film was prepared by in situ condensation polymerization and solution casting. The responses of this elastomer composite film for various organic vapors (polar and non-polar solvents) were calculated by monitoring the change in the resistance of the composite film when exposed to the organic vapors. The changes of electrical resistance of the composite films were explained on the basis of volume expansion as swelling and polar interaction of various vapors on the composite. Therefore, we were able to interpret the behavior of the polyurethane/PEG-modified MWCNT composite film as a chemical vapor sensor through diffusion, sorption, and permeation coefficients of the polymer film-analyte systems. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：566 / 574
页数：9
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共 20 条
[1]   MOLECULAR-TRANSPORT CHARACTERISTICS OF SANTOPRENE THERMOPLASTIC RUBBER IN THE PRESENCE OF ALIPHATIC ALKANES OVER THE TEMPERATURE INTERVAL OF 25-DEGREES-C TO 70-DEGREES-C [J].
AMINABHAVI, TM ;
PHAYDE, HTS .
POLYMER, 1995, 36 (05) :1023-1033
[2]   Gas sensitivity of carbon black/waterborne polyurethane composites [J].
Chen, SG ;
Hu, JW ;
Zhang, MQ ;
Li, MW ;
Rong, MZ .
CARBON, 2004, 42 (03) :645-651
[3]   Conductive carbon black-filled polymethacrylate composites as gas sensing materials: Effect of glass transition temperature [J].
Dong, Xian Ming ;
Luo, Ying ;
Xie, Li Na ;
Fu, Ruo Wen ;
Zhang, Ming Qiu .
THIN SOLID FILMS, 2008, 516 (21) :7886-7890
[4]   Molecular transport of aromatic solvents in isotactic polypropylene/acrylonitrile-co-butadiene rubber blends [J].
George, S ;
Varughese, KT ;
Thomas, S .
POLYMER, 2000, 41 (02) :579-594
[5]   DIFFUSION AND SORPTION OF ORGANIC LIQUIDS THROUGH POLYMER MEMBRANES .5. NEOPRENE, STYRENE BUTADIENE RUBBER, ETHYLENE PROPYLENE DIENE TERPOLYMER, AND NATURAL-RUBBER VERSUS HYDROCARBONS (C8-C16) [J].
HAROGOPPAD, SB ;
AMINABHAVI, TM .
MACROMOLECULES, 1991, 24 (09) :2598-2605
[6]   Low carbon black filled polyurethane composite as candidate for wide spectrum gas-sensing element [J].
Hu, JW ;
Chen, SG ;
Zhang, MQ ;
Li, MW ;
Rong, MZ .
MATERIALS LETTERS, 2004, 58 (27-28) :3606-3609
[7]   Preparation of Surface Adsorbed and Impregnated Multi-walled Carbon Nanotube/Nylon-6 Nanofiber Composites and Investigation of their Gas Sensing Ability [J].
Lala, Neeta L. ;
Thavasi, Velmurugan ;
Ramakrishna, Seeram .
SENSORS, 2009, 9 (01) :86-101
[8]   Measurement of the dispersion stability of pristine and surface-modified multiwalled carbon nanotubes in various nonpolar and polar solvents [J].
Lee, Jeongwoo ;
Kim, Myunghun ;
Hong, Chang Kook ;
Shim, Sang Eun .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2007, 18 (12) :3707-3712
[9]   Effects of mechanical strain on the electric conductivity of multiwalled carbon nanotube (MWCNT)/polyurethane (PU) composites [J].
Lee, Sang-Do ;
Kwon, Oh-Jin ;
Chun, Byoung Chul ;
Cho, Jae Whan ;
Park, Jong-Shin .
FIBERS AND POLYMERS, 2009, 10 (01) :71-76
[10]   Carbon black/polystyrene composites as candidates for gas sensing materials [J].
Li, JR ;
Xu, JR ;
Zhang, MQ ;
Rong, MZ .
CARBON, 2003, 41 (12) :2353-2360
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