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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 353Characterization of Gamma Irradiated PP/LDPE Blend

Characterization of Gamma Irradiated PP/LDPE Blend

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Abstract:

This study analyzed nine polypropylene (PP) and low-density polyethylene (LDPE) blends where the mass concentrations of each sample were changed, proportionally. The aim was to investigate the tensile strength by means of these polymers best combination, before and after its exposal to gamma rays. The results showed that the 20/80 - PP/LDPE blend had a better performance concerning mechanical properties after irradiation, where the maximums tensile stress had an average increase of 30% in 30 and 50 kGy doses and 33% in the 200 kGy dose. On the other hand, it was verified that the higher blend's PP concentration, the higher its tensile strength will be (except for 100 kGy and 200 kGy doses which PP concentration over 70% can cause eventual degradation in the polymeric chains of the blend).

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Diffusion in Solids and Liquids IX

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Periodical:

Defect and Diffusion Forum (Volume 353)

Pages:

90-95

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.353.90

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Online since:

May 2014

Authors:

Tatiana Mayumi Moori*, Mauro Cesar Terence, Nilson Casimiro Pereira, Sonia Braunstein Faldini, Leila Figueiredo de Miranda

Keywords:

Blend, Gamma Radiation, Low Density Polyethylene (LDPE), Polypropylene (PP)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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