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Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam

Master of Science in Polymer Engineering

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Bibliographic Details
Main Author: Mohamad Saed, Hussein
Other Authors: Teh, Pei Leng, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2017
Subjects:
Epoxy resins
Foam rubber
Rubber
Toluene
Epoxy
Polymer foam
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72932
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spelling my.unimap-729322021-12-16T03:41:36Z Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam Mohamad Saed, Hussein Teh, Pei Leng, Dr. Epoxy resins Foam rubber Rubber Toluene Epoxy Polymer foam Master of Science in Polymer Engineering Epoxy foam is one of the common materials used, which being applied especially as the insulator material in electronic purposes and aerospace applications. In order to maximize the potential of natural rubber and recycled natural rubber to be acted as effective toughening agent epoxy foam, the rubber phase must be distributed and dispersed well in the epoxy. In addition, the amount of natural rubber (NR) and recycled natural rubber (rNR) play very important role in influencing the mechanical properties of the epoxy foam. Addition of blowing agent: sodium bicarbonate (NaHCO3) to the epoxy system with NR and rNR as toughening agent have been investigated. The epoxy foam samples were fabricated using mechanical mixing technique. Sodium bicarbonate was selected as blowing agent due to the environmental friendly and low cost concern. While natural rubber and recycled natural rubber controls the toughening effect because epoxy foam is brittle in nature. This research consists of three parts of studies. First, the effect of sodium bicarbonate content, secondly, the effect of natural rubber content and lastly, the effect of recycled natural rubber content on the properties of epoxy foam. Mechanical, physical and morphology properties were done. Sodium bicarbonate content was varied at 5, 10, 15 and 20 phr, respectively. Natural rubber and recycled natural rubber content were varied at 5, 10, 15, 20 and 25 volume percentage (vol %), respectively. The experimental results showed the maximum content of the blowing agent was selected at 20 phr and it gave the highest porosity percentage (%), however it revealed the lowest value in mechanical and density properties. The morphology shows that, at 20 phr sodium bicarbonate content produced the high % of porous structure. As for the second part of study, for natural rubber loading, 10 vol % revealed the optimum value of flexural, fracture toughness, density, porosity % and morphology properties. 2017 2021-12-16T03:36:55Z 2021-12-16T03:36:55Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72932 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Epoxy resins
Foam rubber
Rubber
Toluene
Epoxy
Polymer foam
spellingShingle Epoxy resins
Foam rubber
Rubber
Toluene
Epoxy
Polymer foam
Mohamad Saed, Hussein
Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
description Master of Science in Polymer Engineering
author2 Teh, Pei Leng, Dr.
author_facet Teh, Pei Leng, Dr.
Mohamad Saed, Hussein
format Thesis
author Mohamad Saed, Hussein
author_sort Mohamad Saed, Hussein
title Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
title_short Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
title_full Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
title_fullStr Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
title_full_unstemmed Comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
title_sort comparative study of natural rubber and recycled natural rubber as toughening agent in epoxy foam
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72932
_version_ 1724609973713895424
score 13.222552

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