 | Nanotech 2011 Vol. 1
Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites
Chapter 6: Polymer & Soft Nanotechnology |
Mechanical Characteriztion of XD-Grade Carbon Nanotube/Epon 862 Processed by Dual Phase Dispersion Technique | |
| Authors: | M.K. Hossain, C. Okoro, M. Hosur, S. Jeelani, V. Rangari |
| Affilation: | Tuskegee University, US |
| Pages: | 636 - 639 |
| Keywords: | xd-CNTs, ultrasonic, SEM, DMA |
| Abstract: | In this research, a dual-phase dispersion method is studied combining a high intensity ultrasonic liquid processor with a three roll milling technique. Xd-grade carbon nanotubes (xd-CNTs) were infused into Epon 862 epoxy and then mixed with epicure curing agent W using a high-speed mechanical agitator. Flexural and dynamic mechanical analysis (DMA) were performed on neat, 0.015wt.%, and 0.15wt.% xd-CNT-filled epoxy to identify the loading effect on the mechanical properties of the composite materials. Flexural tests were performed using a Zwick Roell testing machine under displacement control mode at a crosshead speed of 2.0 mm/min. Flexural results indicate homogeneity with improvements in mechanical properties of up to 15% in strength as well as modulus enhancement of up to 25%, respectively. Interfacial adhesion and dispersion are improved with viscosity reduction and secondary three roll mixing method. Scanning electron microscopy (SEM) performed using Joel 2001 at 5 and 10kV depict the fracture morphology of the tested specimens indicating proper dispersion of the xd-CNTs by fracture propagation and cleavage plane displacement. DMA studies performed using TA Instrument Q800 operating in three-point bending mode at an oscillation frequency of 1Hz revealed an increase in storage modulus in the nanophased specimens as CNT loading increased. |
| ISBN: | 978-1-4398-7142-3 |
| Pages: | 882 |
| Hardcopy: | $199.95 |
| Order: | Mail/Fax Form |
| Special: | 3 CD Set — 15% off with Free Shipping |
| Up |
© 2013 Nano Science and Technology Institute. All Rights Reserved.
Terms of Use | Privacy Policy | Contact Us | Site Map
Terms of Use | Privacy Policy | Contact Us | Site Map