Cover Image

The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin

A thermoplastic natural rubber (TPNR) was prepared by melt-blending of polypropylene (PP) and natural rubber (NR) in percentage weight ratio of 70:30 using an internal mixer. Samples of TPNR filled with same proportion of magnetite powders were similarly prepared at a fixed TPNR (70% of the total...

Full description

Saved in:
Bibliographic Details
Main Author: Wan Mohd Rusdin, Wan Nurfatin Kamilia
Format: Student Project
Language:English
Published: Faculty of Applied Sciences 2017
Subjects:
Materials of engineering and construction
Online Access:http://ir.uitm.edu.my/id/eprint/23643/1/PPb_WAN%20NURFATIN%20KAMILIA%20WAN%20MOHD%20RUSDIN%20AS%20C%2017_5.PDF
http://ir.uitm.edu.my/id/eprint/23643/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.uitm.ir.23643
record_format eprints
spelling my.uitm.ir.236432019-04-22T03:34:26Z http://ir.uitm.edu.my/id/eprint/23643/ The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin Wan Mohd Rusdin, Wan Nurfatin Kamilia Materials of engineering and construction A thermoplastic natural rubber (TPNR) was prepared by melt-blending of polypropylene (PP) and natural rubber (NR) in percentage weight ratio of 70:30 using an internal mixer. Samples of TPNR filled with same proportion of magnetite powders were similarly prepared at a fixed TPNR (70% of the total weight). The pure TPNR and different thickness of TPNR filled magnetite was prepared by using hot press process. The dielectric constant and tangent loss of sample with different thicknesses were studied. The thermogravimetric analysis (TGA) was used to check the homogeneity of the filler dispersion in the matrix of TPNR and vector network analysis used to study the dielectric constant and loss tangent. In thermogravimetric analysis, the sample was confirmed homogenous according to TGA result. The dielectric constant, E' and loss tangent, E"/E' were studied by using vector analysis in frequency range 8GHz-12GHz. The values of E' and E"/E' of the composites are almost comparable to each other in the measured frequency region. For dielectric constant, the 2mm thickness TPNR filled with magnetite has the highest reading which is 2.077019064 followed by the TPNR filled magnetite 5mm is 1.498707921 and the pure TPNR is 1.371611802 in the frequency range 8GHz-12GHz. For loss tangent, TPNR filled magnetite 2mm thickness has the lowest reading which is -0.033864351 followed by the TPNR filled magnetite 5mm is -0.020930693 and the pure TPNR is 0.017549753 in the frequency range 8GHz-12GHz. The incorporation of pure TPNR and the different thickness of TPNR filled magnetite has resulted differences in dielectric constant, loss tangent and microwave properties of the composites. These composites can be developed as an electromagnetic wave absorber. Faculty of Applied Sciences 2017 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23643/1/PPb_WAN%20NURFATIN%20KAMILIA%20WAN%20MOHD%20RUSDIN%20AS%20C%2017_5.PDF Wan Mohd Rusdin, Wan Nurfatin Kamilia (2017) The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin. [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Materials of engineering and construction
spellingShingle Materials of engineering and construction
Wan Mohd Rusdin, Wan Nurfatin Kamilia
The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin
description A thermoplastic natural rubber (TPNR) was prepared by melt-blending of polypropylene (PP) and natural rubber (NR) in percentage weight ratio of 70:30 using an internal mixer. Samples of TPNR filled with same proportion of magnetite powders were similarly prepared at a fixed TPNR (70% of the total weight). The pure TPNR and different thickness of TPNR filled magnetite was prepared by using hot press process. The dielectric constant and tangent loss of sample with different thicknesses were studied. The thermogravimetric analysis (TGA) was used to check the homogeneity of the filler dispersion in the matrix of TPNR and vector network analysis used to study the dielectric constant and loss tangent. In thermogravimetric analysis, the sample was confirmed homogenous according to TGA result. The dielectric constant, E' and loss tangent, E"/E' were studied by using vector analysis in frequency range 8GHz-12GHz. The values of E' and E"/E' of the composites are almost comparable to each other in the measured frequency region. For dielectric constant, the 2mm thickness TPNR filled with magnetite has the highest reading which is 2.077019064 followed by the TPNR filled magnetite 5mm is 1.498707921 and the pure TPNR is 1.371611802 in the frequency range 8GHz-12GHz. For loss tangent, TPNR filled magnetite 2mm thickness has the lowest reading which is -0.033864351 followed by the TPNR filled magnetite 5mm is -0.020930693 and the pure TPNR is 0.017549753 in the frequency range 8GHz-12GHz. The incorporation of pure TPNR and the different thickness of TPNR filled magnetite has resulted differences in dielectric constant, loss tangent and microwave properties of the composites. These composites can be developed as an electromagnetic wave absorber.
format Student Project
author Wan Mohd Rusdin, Wan Nurfatin Kamilia
author_facet Wan Mohd Rusdin, Wan Nurfatin Kamilia
author_sort Wan Mohd Rusdin, Wan Nurfatin Kamilia
title The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin
title_short The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin
title_full The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin
title_fullStr The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin
title_full_unstemmed The dielectric constant (Ɛr =Ɛ'r – jƐ”r) and loss tangent (tan δ = Ɛ"/Ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / Wan Nurfatin Kamilia Wan Mohd Rusdin
title_sort dielectric constant (ɛr =ɛ'r – jɛ”r) and loss tangent (tan δ = ɛ"/ɛ') of different thicknesses of 70 % thermoplastic natural rubber - 30% magnetite (fe304) composite / wan nurfatin kamilia wan mohd rusdin
publisher Faculty of Applied Sciences
publishDate 2017
url http://ir.uitm.edu.my/id/eprint/23643/1/PPb_WAN%20NURFATIN%20KAMILIA%20WAN%20MOHD%20RUSDIN%20AS%20C%2017_5.PDF
http://ir.uitm.edu.my/id/eprint/23643/
_version_ 1685649758680514560
score 13.211869

Similar Items