Influence of the γ-ray dose on the electrical properties of toluene diisocyanate mixed with naturally dehydrated caster oil fatty acids

Influence of the γ-ray dose on the electrical properties of toluene diisocyanate mixed with naturally dehydrated caster oil fatty acids

Measurements of the alternating-current conductivity and direct-current conductivity before and after irradiation were studied for matrices composed of toluene diisocyanate mixed in four different ratios with dehydrated caster oil fatty acids. Different irradiation doses were investigated for all th...

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Bibliographic Details
Published in:Journal of applied polymer science Vol. 106; no. 3; pp. 1847 - 1852
Main Authors: Akraiam, F.A, Elaydy, A.B, Abed El-Latif, A.A
Format: Journal Article
Language:English
Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 05-11-2007
Wiley
Subjects:
Applied sciences
Exact sciences and technology
irradiation
matrix
mechanical properties
mixing
Physicochemistry of polymers
polymerization
Polymers and radiations
Properties and characterization
polymerization
Electrical conductivity
Electrical properties
Property composition relationship
mixing
Vegetable oil
Experimental study
matrix
Polyaddition
irradiation
mechanical properties
Radiation dose
Gamma radiation
Organic diisocyanate
Castor oil
Polyurethane
Plant origin
Activation energy
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Summary:Measurements of the alternating-current conductivity and direct-current conductivity before and after irradiation were studied for matrices composed of toluene diisocyanate mixed in four different ratios with dehydrated caster oil fatty acids. Different irradiation doses were investigated for all the samples. The alternating-current conductivity in the frequency range of 500-10000 Hz was found to obey the very well-known law σac(ω,T) = AωS, where σac(ω,T) is the alternating-current conductivity at angular frequency ω and temperature T and S is an exponent. The exponent decreased with increasing temperature for all compositions. A strong temperature dependence of the alternating-current conductivity and the exponent in the entire ranges of the temperatures and frequencies was reasonably interpreted with the correlated barrier-hopping model. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Bibliography:http://dx.doi.org/10.1002/app.25952
ArticleID:APP25952
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ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0021-8995
1097-4628
DOI:10.1002/app.25952