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Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends

In this study, five series of formulations have been used to study the effects of recycled acrylonitrile-butadiene rubber glove (NBRr) blending together with natural rubber (NR). Cure characteristics, tensile test, hardness and resilience tests, crosslink density test, fatigue test, thermal analysis...

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Main Author: Ahmad @ Sofa, Hazwani Syaza
Format: Thesis
Language:English
Published: 2018
Subjects:
T Technology
TN Mining Engineering. Metallurgy
Online Access:http://eprints.usm.my/56379/1/Characterization%20And%20Properties%20Of%20Natural%20Rubber%20Recycled%20Acrylonitrile-Butadiene%20Rubber%20Blends_Hazwani%20Syaza%20Ahmad%20%40%20Sofa.pdf
http://eprints.usm.my/56379/
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spelling my.usm.eprints.56379 http://eprints.usm.my/56379/ Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends Ahmad @ Sofa, Hazwani Syaza T Technology TN Mining Engineering. Metallurgy In this study, five series of formulations have been used to study the effects of recycled acrylonitrile-butadiene rubber glove (NBRr) blending together with natural rubber (NR). Cure characteristics, tensile test, hardness and resilience tests, crosslink density test, fatigue test, thermal analysis, and Fourier transform infrared (FTIR) analysis were carried out on these five series. Morphology of failure surface was analyzed using Scanning electron microscopy (SEM). In the first series, natural rubber/virgin acrylonitrile-butadiene rubber (NR/NBRv) blends showed better cure characteristics and mechanical properties compared with NR/NBRr blends. However, NR/NBRr blends showed a better result on some properties such as higher modulus and hardness, and less solvent uptake. ENR-50 and EVA was added into the NR/NBRr blends as compatibilizers in the second and third series. Result indicated cure characteristics and mechanical properties of compatibilized NR/NBRr blends were improved compared with uncompatibilized NR/NBRr blends. However, addition of ENR-50 into NR/NBRr blends showed better cure characteristics and mechanical properties in terms of scorch time, tensile strength, modulus, hardness, and solvent uptake compared with NR/NBRr blends with EVA. It had been proven by SEM micrograph of failure surface which shown addition of compatibilizer enhanced the compatibility of NR/NBRr blends. Further study of ENR-50/NBRr blends was carried out in the fourth series. Results show that cure characteristics and mechanical properties improved for all blends compared with NR/NBRr blends. Blending ENR-50 with NBRr gives better compatibility and strong interfacial adhesion between ENR-50 and NBRr. On the fifth series the effects of different crosslinking system which are sulphur (S), dicumyl peroxide (DCP), and mixed system (S+DCP) on NR/NBRr blends were carried out. The sulphur system show the best cure characteristics compared to peroxide and mixed systems, while the mixed system show the best mechanical and physical properties compared to sulphur and peroxide systems at all blend ratios. 2018-12-01 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/56379/1/Characterization%20And%20Properties%20Of%20Natural%20Rubber%20Recycled%20Acrylonitrile-Butadiene%20Rubber%20Blends_Hazwani%20Syaza%20Ahmad%20%40%20Sofa.pdf Ahmad @ Sofa, Hazwani Syaza (2018) Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends. PhD thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TN Mining Engineering. Metallurgy
spellingShingle T Technology
TN Mining Engineering. Metallurgy
Ahmad @ Sofa, Hazwani Syaza
Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends
description In this study, five series of formulations have been used to study the effects of recycled acrylonitrile-butadiene rubber glove (NBRr) blending together with natural rubber (NR). Cure characteristics, tensile test, hardness and resilience tests, crosslink density test, fatigue test, thermal analysis, and Fourier transform infrared (FTIR) analysis were carried out on these five series. Morphology of failure surface was analyzed using Scanning electron microscopy (SEM). In the first series, natural rubber/virgin acrylonitrile-butadiene rubber (NR/NBRv) blends showed better cure characteristics and mechanical properties compared with NR/NBRr blends. However, NR/NBRr blends showed a better result on some properties such as higher modulus and hardness, and less solvent uptake. ENR-50 and EVA was added into the NR/NBRr blends as compatibilizers in the second and third series. Result indicated cure characteristics and mechanical properties of compatibilized NR/NBRr blends were improved compared with uncompatibilized NR/NBRr blends. However, addition of ENR-50 into NR/NBRr blends showed better cure characteristics and mechanical properties in terms of scorch time, tensile strength, modulus, hardness, and solvent uptake compared with NR/NBRr blends with EVA. It had been proven by SEM micrograph of failure surface which shown addition of compatibilizer enhanced the compatibility of NR/NBRr blends. Further study of ENR-50/NBRr blends was carried out in the fourth series. Results show that cure characteristics and mechanical properties improved for all blends compared with NR/NBRr blends. Blending ENR-50 with NBRr gives better compatibility and strong interfacial adhesion between ENR-50 and NBRr. On the fifth series the effects of different crosslinking system which are sulphur (S), dicumyl peroxide (DCP), and mixed system (S+DCP) on NR/NBRr blends were carried out. The sulphur system show the best cure characteristics compared to peroxide and mixed systems, while the mixed system show the best mechanical and physical properties compared to sulphur and peroxide systems at all blend ratios.
format Thesis
author Ahmad @ Sofa, Hazwani Syaza
author_facet Ahmad @ Sofa, Hazwani Syaza
author_sort Ahmad @ Sofa, Hazwani Syaza
title Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends
title_short Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends
title_full Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends
title_fullStr Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends
title_full_unstemmed Characterization And Properties Of Natural Rubber/Recycled Acrylonitrile-Butadiene Rubber Blends
title_sort characterization and properties of natural rubber/recycled acrylonitrile-butadiene rubber blends
publishDate 2018
url http://eprints.usm.my/56379/1/Characterization%20And%20Properties%20Of%20Natural%20Rubber%20Recycled%20Acrylonitrile-Butadiene%20Rubber%20Blends_Hazwani%20Syaza%20Ahmad%20%40%20Sofa.pdf
http://eprints.usm.my/56379/
_version_ 1755873174744989696
score 13.222552

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