Cover Image

Study of the curing kinetics of synthetic and natural polyester blends

This work reports on the curing kinetics of the natural and synthetic polyester blends cured with methyl ethyl ketone peroxide (MEKP) as initiator and Cobalt Naphthenate as accelerator. Palm oil based natural polyester was produced from alcoholysis and esterification process, whereas synthetic polye...

Full description

Saved in:
Bibliographic Details
Main Author: Teoh, Tze Siang
Format: Undergraduates Project Papers
Language:English
Published: 2014
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/12470/1/FKKSA%20-%20TEOH%20TZE%20SIANG.PDF
http://umpir.ump.edu.my/id/eprint/12470/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.ump.umpir.12470
record_format eprints
spelling my.ump.umpir.124702021-08-11T04:23:28Z http://umpir.ump.edu.my/id/eprint/12470/ Study of the curing kinetics of synthetic and natural polyester blends Teoh, Tze Siang TP Chemical technology This work reports on the curing kinetics of the natural and synthetic polyester blends cured with methyl ethyl ketone peroxide (MEKP) as initiator and Cobalt Naphthenate as accelerator. Palm oil based natural polyester was produced from alcoholysis and esterification process, whereas synthetic polyester was derived from petroleum. Generally, blending of two polymers is usually required in order to have better properties than a single polymer. In recent year, much attention was paid to blending of natural and synthetic polymer due to environmental issues, lack of petroleum, poor properties of natural vegetable oil based polymers or resins. Themain objectives of this research work are to study curing kinetics and curing time of the best composition of polymer blends of natural and synthetic polyester. The kinetics curing of best composition of natural and synthetic polyester blends was studied by DSC analysis at different heating rates such as 10, 15 and 20°C/mm. The analysis was based on the exothermic peak raised due to the double bonds breaking to give crosslinked macromolecules. Additionally, the kinetics parameters for each heating rates such as activation energy, degree of conversion and number of orders were calculated based on the established method and equations. Result analysis revealed that the DSC thermogram shows one exothermic peak. The curing time of the polymer blends decreased as the composition of synthetic polyester increased from 10%wt to 40%wt. Besides, the curing time also decreased as the composition of the curing agent increased from 0.05%wt to 0.2%wt. The best drying time is 180 minutes with the composition of 27phr of natural polyester, l8phr of synthetic polyester, 30phr styrene, 20phr MEKP and 5phr of CoNp Furthermore, the glass transition temperature of the best composition of natural and synthetic polyester blends is about - 2.5°C. Moreover, the activation energy and reaction orders are decrease as the heating rates increase. 2014-05 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12470/1/FKKSA%20-%20TEOH%20TZE%20SIANG.PDF Teoh, Tze Siang (2014) Study of the curing kinetics of synthetic and natural polyester blends. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Teoh, Tze Siang
Study of the curing kinetics of synthetic and natural polyester blends
description This work reports on the curing kinetics of the natural and synthetic polyester blends cured with methyl ethyl ketone peroxide (MEKP) as initiator and Cobalt Naphthenate as accelerator. Palm oil based natural polyester was produced from alcoholysis and esterification process, whereas synthetic polyester was derived from petroleum. Generally, blending of two polymers is usually required in order to have better properties than a single polymer. In recent year, much attention was paid to blending of natural and synthetic polymer due to environmental issues, lack of petroleum, poor properties of natural vegetable oil based polymers or resins. Themain objectives of this research work are to study curing kinetics and curing time of the best composition of polymer blends of natural and synthetic polyester. The kinetics curing of best composition of natural and synthetic polyester blends was studied by DSC analysis at different heating rates such as 10, 15 and 20°C/mm. The analysis was based on the exothermic peak raised due to the double bonds breaking to give crosslinked macromolecules. Additionally, the kinetics parameters for each heating rates such as activation energy, degree of conversion and number of orders were calculated based on the established method and equations. Result analysis revealed that the DSC thermogram shows one exothermic peak. The curing time of the polymer blends decreased as the composition of synthetic polyester increased from 10%wt to 40%wt. Besides, the curing time also decreased as the composition of the curing agent increased from 0.05%wt to 0.2%wt. The best drying time is 180 minutes with the composition of 27phr of natural polyester, l8phr of synthetic polyester, 30phr styrene, 20phr MEKP and 5phr of CoNp Furthermore, the glass transition temperature of the best composition of natural and synthetic polyester blends is about - 2.5°C. Moreover, the activation energy and reaction orders are decrease as the heating rates increase.
format Undergraduates Project Papers
author Teoh, Tze Siang
author_facet Teoh, Tze Siang
author_sort Teoh, Tze Siang
title Study of the curing kinetics of synthetic and natural polyester blends
title_short Study of the curing kinetics of synthetic and natural polyester blends
title_full Study of the curing kinetics of synthetic and natural polyester blends
title_fullStr Study of the curing kinetics of synthetic and natural polyester blends
title_full_unstemmed Study of the curing kinetics of synthetic and natural polyester blends
title_sort study of the curing kinetics of synthetic and natural polyester blends
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/12470/1/FKKSA%20-%20TEOH%20TZE%20SIANG.PDF
http://umpir.ump.edu.my/id/eprint/12470/
_version_ 1709667605684420608
score 13.211869

Similar Items