Theme-Logo
  • Login
  • Home
  • Course
  • Publication
  • Theses
  • Reports
  • Published books
  • Workshops / Conferences
  • Supervised PhD
  • Supervised MSc
  • Supervised projects
  • Education
  • Language skills
  • Positions
  • Memberships and awards
  • Committees
  • Experience
  • Scientific activites
  • In links
  • Outgoinglinks
  • News
  • Gallery
publication name Electrical Properties of PMMA / Dye Composite Irradiated With Laser
Authors Gamal M. Nasr, Ashraf S.Abdel Haleem, Adel M. Alnozahy and Mohamed M. Elfaham
year 2017
keywords PMMA, dyes, laser irradiation, electrical properties
journal life science journal
volume 6
issue Not Available
pages 623-635
publisher Not Available
Local/International International
Paper Link http://www.lifesciencesite.com
Full paper download
Supplementary materials Not Available
Abstract

The use of polymer alloys blends and composites have grown constantly at 9% in the last 10 years and it is four times the growth rate of total plastic industry. In this study, we report the polymerization process of undoped and doped Polymethyl methacrylate (PMMA) with different dye concentrations .The dielectric properties of PMMA (undoped and doped) polymerized by laser beam irradiation have been compared with those polymerized with laser beam irradiation effects in order to establish the superiority of the laser beam irradiation process over the conventional polymerization. Compared to pure polymer, the dielectric constant of the dye- polymer composites is greater for all fill concentrations because the system becomes more heterogeneous than the pure polymer as more dye is added to it. The increase in ε΄ with increase in dye is attributed to the formation of clusters, which lead to greater average polarization and thus a greater contribution to dielectric constant. In case of modified PMMA with dye concentration less than and equal to the percolation threshold, one could observe a gradual increase in ε΄ with laser energy up to 100 Joules followed by an abrupt increase till 150 Joules. An RC electric equivalent circuit model was successfully for our sample to declare the effect of both dye concentration and laser beam energies on the dielectric properties of the tested samples.

Benha University © 2023 Designed and developed by portal team - Benha University