Loading...
Processing parameters and their influence on mechanical properties of polymeric nanocomposites reinforced with chemically functionalizaed helical carbon nanotubes using nitric acid
Heinrich, Andrew R.
Heinrich, Andrew R.
Citations
Altmetric:
Files
Loading...
Thesis
Adobe PDF, 2.43 MB
Authors
Other Names
Location
Time Period
Advisors
Original Date
Digitization Date
Issue Date
2017-12
Type
Thesis
Genre
Keywords
Subjects (LCSH)
Electronic dissertation
Electronic dissertations
Electronic dissertations
Citation
Abstract
This research attempted to develop a relationship between the parameters governing the covalent functionalization process and their effects on epoxy matrix polymeric nano-composites. Functionalization with a nitric acid refluxing process was conducted on helical carbon nanotubes (HCNTs). The temperature, acid molarity, and reaction time were all varied during the functionalization process. These functionalized helical carbon nanotubes were then incorporated into epoxy matrix at increasing percent mass 0.02wt%, 0.04wt% and 0.06wt%. Subsequently mechanical properties of the nanocomposite samples were tested in accordance to the ASTM D638-10. A large quantity of data was collected and organized in order to observe the relationship between the effects of functionalization parameters on the HCNT nano reinforcement and the resulting polymer matrix nanocomposites. Along with the large quantity of data the highest improvements for mechanical properties for nanocomposites samples that were reinforced with HCNTs functionalized at 60°C and 100°C, with 8 Molar nitric acid and24hrs of reflux time. Observations with respect to the control samples revealed maximum improvements of 5%, 73%, 18%, and 12% for tensile strength, fracture toughness, Young's modulus, and Percent elongation at failure respectively.
Table of Contents
Description
Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering
Publisher
Wichita State University
Journal
Book Title
Series
Digital Collection
Finding Aid URL
Use and Reproduction
Copyright 2017 by Andrew Robert Heinrich All Rights Reserved