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Effect of cenosphere on dielectric properties of low density polyethylene.

IR@AMPRI: CSIR-Advanced Materials and Processes Research Institute, Bhopal


Field	Value

Title	Effect of cenosphere on dielectric properties of low density polyethylene.

Creator	M.N., Bapat Navin, Chand Janu , Sharma

Subject	Lightweight Materials

Description	Dielectric characterization of cenosphere ﬁlled low density polyethylene composites is reported in this paper. Cenosphere ﬁlled low density polyethylene (LDPE) composites with inhomogeneous dispersions of cenosphere were prepared and dielectric measurements have been performed on these composites in the temperature range 34–110 �C in the frequency range 1–10 kHz. The dielectric constants of the composites with ﬁller concentrations 0%, 10%, 15% and 20 vol.% were measured. Effect of temperature and frequency variations on dielectric constant (e 0 ), dissipation factor (tand) and a.c. conductivity (ra.c.) was also determined. The frequency dependent dielectric and conductivity behaviour of ﬂyash cenosphere ﬁlled low density polyethylene (LDPE) polymer composites have been studied. Appearance of peak in the dielectric loss curves for all the concentrations conﬁrms the presence of relaxing dipoles in the cenosphere/LDPE composites. The effect of ﬁller distribution on the dielectric constant is examined and the observed differences are attributed to the differences in two kinds of interfaces present: one formed between the touching cenosphere particles and the other formed between LDPE and cenosphere. With the increase of cenosphere content dielectric constant decreased gradually. Maxwell–Garnett approximation fairly ﬁts for the dielectric data obtained experimentally for these composites

Date	1983

Type	Article PeerReviewed

Identifier	M.N., Bapat and Navin, Chand and Janu , Sharma (1983) Effect of cenosphere on dielectric properties of low density polyethylene. Result in Physics..

Relation	http://ampri.csircentral.net/490/