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Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin

Molding is a process to fabricate the compounded rubber to the desired shape and dimensions of the intended product. Rejects attributed to poor hot tear resistance of vulcanized rubber at high temperature vulcanization are of prime concerned, in particular thin and complicated moulded rubber profile...

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Main Author: Kamarudin, Nor Atiqah
Format: Thesis
Language:English
Published: 2015
Subjects:
Rubber industry
Online Access:http://ir.uitm.edu.my/id/eprint/27195/1/TM_NOR%20ATIQAH%20KAMARUDIN%20AS%2015_5.pdf
http://ir.uitm.edu.my/id/eprint/27195/
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spelling my.uitm.ir.271952020-01-13T04:14:30Z http://ir.uitm.edu.my/id/eprint/27195/ Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin Kamarudin, Nor Atiqah Rubber industry Molding is a process to fabricate the compounded rubber to the desired shape and dimensions of the intended product. Rejects attributed to poor hot tear resistance of vulcanized rubber at high temperature vulcanization are of prime concerned, in particular thin and complicated moulded rubber profiles. The purpose of this study is to investigate the effect of high temperature on tearing energy of vulcanized rubber, the effect of types of filler on tearing energy and the effect of types of crosslink on hot tear resistant. Tearing measurements were done at various different temperatures practiced by the rubber industry. Trouser test-pieces were placed inside an electrically heated oven at the desired test temperature for 15 minutes before applying dead load to determine its critical tearing energy. It was found that strain-crystallizing rubbers showed critical tearing energy, Tc. Above Tc catastrophic tearing occurs. Non-strain-crystallizing rubber shows time dependent tearing where the crack increases in length as a function of time. The magnitude of tearing energy is affected by the extend of strain-crystallization. In the absence of strain-crystallization, the tearing energy is affected by the glass-transition temperature, Tg. The higher the Tg, the higher is the tearing energy. 2015 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/27195/1/TM_NOR%20ATIQAH%20KAMARUDIN%20AS%2015_5.pdf Kamarudin, Nor Atiqah (2015) Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin. Masters thesis, Universiti Teknologi MARA.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Rubber industry
spellingShingle Rubber industry
Kamarudin, Nor Atiqah
Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin
description Molding is a process to fabricate the compounded rubber to the desired shape and dimensions of the intended product. Rejects attributed to poor hot tear resistance of vulcanized rubber at high temperature vulcanization are of prime concerned, in particular thin and complicated moulded rubber profiles. The purpose of this study is to investigate the effect of high temperature on tearing energy of vulcanized rubber, the effect of types of filler on tearing energy and the effect of types of crosslink on hot tear resistant. Tearing measurements were done at various different temperatures practiced by the rubber industry. Trouser test-pieces were placed inside an electrically heated oven at the desired test temperature for 15 minutes before applying dead load to determine its critical tearing energy. It was found that strain-crystallizing rubbers showed critical tearing energy, Tc. Above Tc catastrophic tearing occurs. Non-strain-crystallizing rubber shows time dependent tearing where the crack increases in length as a function of time. The magnitude of tearing energy is affected by the extend of strain-crystallization. In the absence of strain-crystallization, the tearing energy is affected by the glass-transition temperature, Tg. The higher the Tg, the higher is the tearing energy.
format Thesis
author Kamarudin, Nor Atiqah
author_facet Kamarudin, Nor Atiqah
author_sort Kamarudin, Nor Atiqah
title Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin
title_short Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin
title_full Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin
title_fullStr Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin
title_full_unstemmed Hot tear resistance of vulcanized rubber / Nor Atiqah Kamarudin
title_sort hot tear resistance of vulcanized rubber / nor atiqah kamarudin
publishDate 2015
url http://ir.uitm.edu.my/id/eprint/27195/1/TM_NOR%20ATIQAH%20KAMARUDIN%20AS%2015_5.pdf
http://ir.uitm.edu.my/id/eprint/27195/
_version_ 1685650238112530432
score 13.211869

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