Facile fabrication of polyolefin/carbon nanotube composites via in situ friedel-crafts polyalkylation: Structure and properties

Song, Ping'An and Liu, Lina and Huang, Guobo and Fu, Shenyuan and Yu, Youming and Guo, Qipeng (2013) Facile fabrication of polyolefin/carbon nanotube composites via in situ friedel-crafts polyalkylation: Structure and properties. Industrial and Engineering Chemistry Research, 52 (40). pp. 14384-14395. ISSN 0888-5885

Abstract

Despite major advances in addressing the dispersion of carbon nanotubes (CNTs) in polymers and their interfacial interactions, exploring a facile approach for massively creating them is still fascinating. We interestingly find that the CNT dispersion is considerably improved in polypropylene (PP), and ∼19.1 wt % of PP chains were in situ chemically grafted onto CNT surfaces only using a trace of AlCl3 via a one-step melt-blending. Compared with the PP/CNT composite, adding 0.2 wt % of AlCl3 enables an increase in tensile strength and Young's modulus of 30% and 25%, respectively. Moreover, the elongation at break is almost maintained, while adding CNTs alone causes significant decreases. Additionally, 0.2 wt % AlCl3 makes the thermal degradation temperature further improved. These remarkable improvements in properties are mainly attributed to better dispersion of CNTs and enhanced interfacial compatibility. This work opens up an innovative approach for scalable preparation of polyolefin/CNT composites applying to industrial production.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 30 May 2017 05:41
Last Modified: 30 May 2017 05:41
Uncontrolled Keywords: elongation at break; industrial production; innovative approaches; interfacial compatibility; interfacial interaction; nanotube composites
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090403 Chemical Engineering Design
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1021/ie401802h
URI: http://eprints.usq.edu.au/id/eprint/31650

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