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Fabrication of highly stretchable conductors via morphological control of carbon nanotube network.
Small. 2013 Nov 11; 9(21):3620-9.S

Abstract

Stretchable conductors, which can keep their excellent electrical conductivity while highly stretched, have been investigated extensively due to their wide range of applications in flexible and stretchable electronics, wearable displays, etc.; however, their preparation is often complicated and expensive. Herein, an efficient method to prepare high performance stretchable conductors through morphological control of conductive networks formed with carbon nanotubes (CNTs) in an elastomer matrix is reported. It is observed that an interface-mediated method could be used to align randomly oriented filler during stretching and to induce buckling of CNTs during relaxation. Further morphological studies indicate the possible formation of a wavy CNT structure induced by cyclic pre-straining. Subsequent thermal annealing is observed to collapse the oriented network and improve the local contacts between conductive networks. Through such a simple procedure, a conductivity of nearly 1000 S m(-1) and a stretchability of 200% can be achieved for composites containing 20 wt% CNTs. CNTs are observed to buckle over a large area in polymer bulk, and the combination of pre-straining and thermal annealing modifies the conductive network in the elastomer matrix. As a general method, this could be used for easy fabrication of high-performance stretchable conductors for arbitrary-shaped objects on a large scale.

Authors+Show Affiliations

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23630114

Citation

Lin, Lin, et al. "Fabrication of Highly Stretchable Conductors Via Morphological Control of Carbon Nanotube Network." Small (Weinheim an Der Bergstrasse, Germany), vol. 9, no. 21, 2013, pp. 3620-9.
Lin L, Liu S, Fu S, et al. Fabrication of highly stretchable conductors via morphological control of carbon nanotube network. Small. 2013;9(21):3620-9.
Lin, L., Liu, S., Fu, S., Zhang, S., Deng, H., & Fu, Q. (2013). Fabrication of highly stretchable conductors via morphological control of carbon nanotube network. Small (Weinheim an Der Bergstrasse, Germany), 9(21), 3620-9. https://doi.org/10.1002/smll.201202306
Lin L, et al. Fabrication of Highly Stretchable Conductors Via Morphological Control of Carbon Nanotube Network. Small. 2013 Nov 11;9(21):3620-9. PubMed PMID: 23630114.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fabrication of highly stretchable conductors via morphological control of carbon nanotube network. AU - Lin,Lin, AU - Liu,Siyao, AU - Fu,Sirui, AU - Zhang,Shuangmei, AU - Deng,Hua, AU - Fu,Qiang, Y1 - 2013/04/30/ PY - 2012/09/19/received PY - 2013/01/18/revised PY - 2013/5/1/entrez PY - 2013/5/1/pubmed PY - 2013/5/1/medline KW - carbon nanotubes KW - conductive networks KW - conductive polymers KW - polymer composites KW - stretchable conductors SP - 3620 EP - 9 JF - Small (Weinheim an der Bergstrasse, Germany) JO - Small VL - 9 IS - 21 N2 - Stretchable conductors, which can keep their excellent electrical conductivity while highly stretched, have been investigated extensively due to their wide range of applications in flexible and stretchable electronics, wearable displays, etc.; however, their preparation is often complicated and expensive. Herein, an efficient method to prepare high performance stretchable conductors through morphological control of conductive networks formed with carbon nanotubes (CNTs) in an elastomer matrix is reported. It is observed that an interface-mediated method could be used to align randomly oriented filler during stretching and to induce buckling of CNTs during relaxation. Further morphological studies indicate the possible formation of a wavy CNT structure induced by cyclic pre-straining. Subsequent thermal annealing is observed to collapse the oriented network and improve the local contacts between conductive networks. Through such a simple procedure, a conductivity of nearly 1000 S m(-1) and a stretchability of 200% can be achieved for composites containing 20 wt% CNTs. CNTs are observed to buckle over a large area in polymer bulk, and the combination of pre-straining and thermal annealing modifies the conductive network in the elastomer matrix. As a general method, this could be used for easy fabrication of high-performance stretchable conductors for arbitrary-shaped objects on a large scale. SN - 1613-6829 UR - https://www.unboundmedicine.com/medline/citation/23630114/Fabrication_of_highly_stretchable_conductors_via_morphological_control_of_carbon_nanotube_network_ L2 - https://doi.org/10.1002/smll.201202306 DB - PRIME DP - Unbound Medicine ER -
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