Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends

The effect of electron beam irradiation on blends of ethylene-octene copolymer (EOC) and polypropylene (PP) with and without trimethylolpropane triacrylate (TMPTA) at various ratios was studied. Initial study showed that specimens with 90 wt% PP : 10 wt% EOC displayed optimum tensile strength of...

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Main Author:	Raj Kumar, Harris C.
Format:	Thesis
Language:	English English
Published:	2005
Subjects:	Electron beams - Irradiation - Polypropylene - Case studies Electron beams - Irradiation - Copolymers - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/6223/1/FS_2005_19.pdf
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id	my-upm-ir.6223
record_format	uketd_dc
spelling	my-upm-ir.62232023-10-17T06:53:47Z Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends 2005-07 Raj Kumar, Harris C. The effect of electron beam irradiation on blends of ethylene-octene copolymer (EOC) and polypropylene (PP) with and without trimethylolpropane triacrylate (TMPTA) at various ratios was studied. Initial study showed that specimens with 90 wt% PP : 10 wt% EOC displayed optimum tensile strength of 29.12 MPa at 40 kGy. Samples of this ratio were then blended with 1, 2 and 3 wt% TMPTA. There was a significant increase in gel content as the TMPTA increased crosslink density in the samples, compared to samples without TMPTA. The plasticizing of TMPTA was obvious during the tensile tests. Furthermore, TMPTA caused the system to break into smaller networks as a result of increasing number of radicals. However, the sample with 3 wt% TMPTA exhibited the highest tensile strength (30.46 MPa) at 40 kGy dose of irradiation. This was also proven in the tensile modulus test. As expected the elongation at break test indicated a decline in values as higher crosslink density decreased the chain mobility, thus reducing elongation. Further tests on samples with 90 wt% PP : 10 wt% EOC : 3 wt% TMPTA were also carried out. The hardness of the samples was quite stable throughout all irradiation doses. However, the impact test displayed a gradual decrease from 73.13 J/m at 0 kGy with increasing irradiation dose. Finally, the flexural strength and flexural modulus displayed optimum properties at 10 kGy irradiation of 39.89 MPa. Electron beams - Irradiation - Polypropylene - Case studies Electron beams - Irradiation - Copolymers - Case studies 2005-07 Thesis http://psasir.upm.edu.my/id/eprint/6223/ http://psasir.upm.edu.my/id/eprint/6223/1/FS_2005_19.pdf text en public masters Universiti Putra Malaysia Electron beams - Irradiation - Polypropylene - Case studies Electron beams - Irradiation - Copolymers - Case studies Science Ahmad, Mansor English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Ahmad, Mansor
topic	Electron beams - Irradiation - Polypropylene - Case studies Electron beams - Irradiation - Copolymers - Case studies
spellingShingle	Electron beams - Irradiation - Polypropylene - Case studies Electron beams - Irradiation - Copolymers - Case studies Raj Kumar, Harris C. Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends
description	The effect of electron beam irradiation on blends of ethylene-octene copolymer (EOC) and polypropylene (PP) with and without trimethylolpropane triacrylate (TMPTA) at various ratios was studied. Initial study showed that specimens with 90 wt% PP : 10 wt% EOC displayed optimum tensile strength of 29.12 MPa at 40 kGy. Samples of this ratio were then blended with 1, 2 and 3 wt% TMPTA. There was a significant increase in gel content as the TMPTA increased crosslink density in the samples, compared to samples without TMPTA. The plasticizing of TMPTA was obvious during the tensile tests. Furthermore, TMPTA caused the system to break into smaller networks as a result of increasing number of radicals. However, the sample with 3 wt% TMPTA exhibited the highest tensile strength (30.46 MPa) at 40 kGy dose of irradiation. This was also proven in the tensile modulus test. As expected the elongation at break test indicated a decline in values as higher crosslink density decreased the chain mobility, thus reducing elongation. Further tests on samples with 90 wt% PP : 10 wt% EOC : 3 wt% TMPTA were also carried out. The hardness of the samples was quite stable throughout all irradiation doses. However, the impact test displayed a gradual decrease from 73.13 J/m at 0 kGy with increasing irradiation dose. Finally, the flexural strength and flexural modulus displayed optimum properties at 10 kGy irradiation of 39.89 MPa.
format	Thesis
qualification_level	Master's degree
author	Raj Kumar, Harris C.
author_facet	Raj Kumar, Harris C.
author_sort	Raj Kumar, Harris C.
title	Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends
title_short	Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends
title_full	Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends
title_fullStr	Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends
title_full_unstemmed	Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends
title_sort	effects of electron beam irradiation on the mechanical properties of ethylene octene copolymer, polypropylene and trimethylolpropane triacrylate blends
granting_institution	Universiti Putra Malaysia
granting_department	Science
publishDate	2005
url	http://psasir.upm.edu.my/id/eprint/6223/1/FS_2005_19.pdf
_version_	1783725706170073088

Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends

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