Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

POLYCARBONATE WITH FUNCTIONALIZED GRAPHITE NANOFIBERS (GNF) AND THE STUDY OF ITS THERMAL AND MECHANICAL PROPERTIES

Mohd Nasir, Mohd Nizar (2013) POLYCARBONATE WITH FUNCTIONALIZED GRAPHITE NANOFIBERS (GNF) AND THE STUDY OF ITS THERMAL AND MECHANICAL PROPERTIES. UNIVERSITI TEKNOLOGI PETRONAS, UNIVERSITI TEKNOLOGI PETRONAS. (Unpublished)

[img]
Preview
PDF
Download (19Mb) | Preview

Abstract

The present study described the process of producing polycarbonate with functionalized graphite nanofiber (GNF) composite and its properties. To improve the solubility of GNF, it will have to go through functionalization which is also known as oxidation. Before functionalization, the GNF have to undergo acid wash process to eliminate metal catalyst in the raw GNF at the same time removing impurities and increase the purity. Acid wash was done by using 2 Molar (M) ofhydrochloric acid and 1hour ofstirring using a mechanical stirrer. After metal elimination process, the GNF was functionalized for 4 hours in 4M nitric acid by using double sonication system; which was using both ultrasonic bath and ultrasonic probe at the same time, to increase efficiency. The acid treatment chemically modified the hydrophobic and inert nature of the surface of raw GNF by attaching functional group such as carboxyl group (COOH) which were detected by using Fourier Transform Infrared Microscopy (FTIR) analysis. The morphology and surface of the GNF were studied from Field Emission Scanning Electron Microscopy (FESEM). Then, the enhance polymer plastic were prepared by solution blending method. Dispersion of GNF within the polymer was observed by microscopic imaging. The study then investigated into the mechanical and thermal properties of the polycarbonate-GNF by Thermo Gravimetric Analysis (TGA) and Universal Testing Machine. For this research, 0.5wt% gives the better dispersion without aggregation and a significant increase in the properties compared to the samples of lwt% and 2wt% where the fibers agglomerate; decreasing the nano-composites potential.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 09 Sep 2014 15:42
Last Modified: 25 Jan 2017 09:38
URI: http://utpedia.utp.edu.my/id/eprint/14013

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...