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Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films

The objective of this research was to develop a small particle size sago starch with the motivation to improve mechanical properties and biodegradability of latex films upon disposal. The research’s stage 1 investigated the optimum synthesis parameter of the acid hydrolyzed sago starch (AHSS) powd...

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Main Author: Yap, Soon You
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2018
Subjects:
T Technology
TN Mining Engineering. Metallurgy
Online Access:http://eprints.usm.my/53262/1/Study%20The%20Synthesis%20Parameters%20And%20Effect%20Of%20Addition%20Of%20Acid%20Hydrolyzed%20Sago%20Starch%20On%20Mechanical%20Properties%20Of%20NR%20And%20XNBR%20Latex%20Films_Yap%20Soon%20You_B1_2018.pdf
http://eprints.usm.my/53262/
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spelling my.usm.eprints.53262 http://eprints.usm.my/53262/ Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films Yap, Soon You T Technology TN Mining Engineering. Metallurgy The objective of this research was to develop a small particle size sago starch with the motivation to improve mechanical properties and biodegradability of latex films upon disposal. The research’s stage 1 investigated the optimum synthesis parameter of the acid hydrolyzed sago starch (AHSS) powder. The native sago starch (NSS) were hydrolyzed with different hydrolysis condition at different temperature, acidity and duration. The results showed that the optimum synthesis parameters of preparation acid hydrolysis sago starch fillers (313.10 nm) was at 2.18 M sulphuric acid under non heated condition (27°C) for 7 days. Stage 2 of work, investigated the effect of addition of AHSS fillers on mechanical properties (tensile properties and tear strength), physical properties (crosslink density measurement), morphological (optical and scanning electron microscopes (SEM)) and biodegradability of NR latex films and XNBR latex films (mass loss analysis). It was found that the AHSS has improved mechanical properties and swelling resistance of latex films as compared to NSS filled NR latex films and NSS filled XNBR latex films. This was contributes by improvement in compatibility of sago starch particles with rubber matrix which attributed from the relative smaller particle size, presence of sulphate ester group and low crystallinity of AHSS. The biodegradation assessment by mass loss analysis indicates AHSS filled NR latex and XNBR filled latex films has higher degree of biodegradation rate. Morphological analyses with optical microscope shows the discoloration of the films and voids resulted from an increased of degradation sites for microorganisms during the biodegradation process. Overall, AHSS has increased the mechanical properties, physical properties and biodegradability of both type of latex films (NR and XNBR) compared to NSS. Universiti Sains Malaysia 2018-06-12 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53262/1/Study%20The%20Synthesis%20Parameters%20And%20Effect%20Of%20Addition%20Of%20Acid%20Hydrolyzed%20Sago%20Starch%20On%20Mechanical%20Properties%20Of%20NR%20And%20XNBR%20Latex%20Films_Yap%20Soon%20You_B1_2018.pdf Yap, Soon You (2018) Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Bahan dan Sumber Mineral. (Submitted)
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
Yap, Soon You
Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films
description The objective of this research was to develop a small particle size sago starch with the motivation to improve mechanical properties and biodegradability of latex films upon disposal. The research’s stage 1 investigated the optimum synthesis parameter of the acid hydrolyzed sago starch (AHSS) powder. The native sago starch (NSS) were hydrolyzed with different hydrolysis condition at different temperature, acidity and duration. The results showed that the optimum synthesis parameters of preparation acid hydrolysis sago starch fillers (313.10 nm) was at 2.18 M sulphuric acid under non heated condition (27°C) for 7 days. Stage 2 of work, investigated the effect of addition of AHSS fillers on mechanical properties (tensile properties and tear strength), physical properties (crosslink density measurement), morphological (optical and scanning electron microscopes (SEM)) and biodegradability of NR latex films and XNBR latex films (mass loss analysis). It was found that the AHSS has improved mechanical properties and swelling resistance of latex films as compared to NSS filled NR latex films and NSS filled XNBR latex films. This was contributes by improvement in compatibility of sago starch particles with rubber matrix which attributed from the relative smaller particle size, presence of sulphate ester group and low crystallinity of AHSS. The biodegradation assessment by mass loss analysis indicates AHSS filled NR latex and XNBR filled latex films has higher degree of biodegradation rate. Morphological analyses with optical microscope shows the discoloration of the films and voids resulted from an increased of degradation sites for microorganisms during the biodegradation process. Overall, AHSS has increased the mechanical properties, physical properties and biodegradability of both type of latex films (NR and XNBR) compared to NSS.
format Monograph
author Yap, Soon You
author_facet Yap, Soon You
author_sort Yap, Soon You
title Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films
title_short Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films
title_full Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films
title_fullStr Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films
title_full_unstemmed Study The Synthesis Parameters And Effect Of Addition Of Acid Hydrolyzed Sago Starch On Mechanical Properties Of NR And XNBR Latex Films
title_sort study the synthesis parameters and effect of addition of acid hydrolyzed sago starch on mechanical properties of nr and xnbr latex films
publisher Universiti Sains Malaysia
publishDate 2018
url http://eprints.usm.my/53262/1/Study%20The%20Synthesis%20Parameters%20And%20Effect%20Of%20Addition%20Of%20Acid%20Hydrolyzed%20Sago%20Starch%20On%20Mechanical%20Properties%20Of%20NR%20And%20XNBR%20Latex%20Films_Yap%20Soon%20You_B1_2018.pdf
http://eprints.usm.my/53262/
_version_ 1738511180319686656
score 13.211869

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