Synthesis and characterization of CNT/thermoplastic polyurethane composites with a high-toughness

JIA Run-ping; DAI Li; TENG Na; HE Xin-yao; HUANG Mao-song

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Article Navigation > New Carbon Mater. > 2015 > 30(4): 378-384

JIA Run-ping, DAI Li, TENG Na, HE Xin-yao, HUANG Mao-song. Synthesis and characterization of CNT/thermoplastic polyurethane composites with a high-toughness. New Carbon Mater., 2015, 30(4): 378-384.

Citation:

JIA Run-ping, DAI Li, TENG Na, HE Xin-yao, HUANG Mao-song. Synthesis and characterization of CNT/thermoplastic polyurethane composites with a high-toughness. New Carbon Mater., 2015, 30(4): 378-384.

JIA Run-ping, DAI Li, TENG Na, HE Xin-yao, HUANG Mao-song. Synthesis and characterization of CNT/thermoplastic polyurethane composites with a high-toughness. New Carbon Mater., 2015, 30(4): 378-384.

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Synthesis and characterization of CNT/thermoplastic polyurethane composites with a high-toughness

1.
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China;
2.
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Funds: Natural Science Youth Foundation (21106083); Shanghai Leading Academic Discipline Project (J51504); Composite Materials from Shanghai Institute of Technology (10210Q140001); Shanghai Teacher Professional development Project(201456); Shanghai Affiliate Programs(LM201449, LM201450).

Received Date: 2015-03-10
Accepted Date: 2015-09-07
Rev Recd Date: 2015-08-05
Publish Date: 2015-08-28

Abstract

Abstract

Carbon nanotubes (CNTs) were grafted with acrylic acid-3-(perfluoro-3-methykbutyl)-2-hydroxypropylate by an oxygen plasma-assisted method to increase their dispersion in thermoplastic polyurethane (TPU). The TPU monomers and the grafted CNTs were mixed and polymerized to prepare the CNT/TPU composites. Results show that the grafting procedure has little effect on the structure of the CNTs. The grafted CNTs have a fluorine content of 10.40% and a diameter of about 30 nm, and are uniformly dispersed in the TPU matrix. The tensile strength and elongation at fracture of the composites have maxima of 36.5 MPa and 630%, respectively, at a CNT content of 0.3%, and these are respectively 40.4% and 26.5% higher than those of pure TPU. Moreover, the surface free energy of the composites decreases from 27.3 to 9.9 mN/m with increasing CNT content from 0 to 0.8%.
- Carbon nanotubes,
- Polyurethane,
- Elastomer,
- Composite,
- High-toughness

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References(24)

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