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Journals / Avrupa Bilim ve Teknoloji Dergisi / 2021 / Sayı: 21

Electromagnetic Shielding Effectiveness of Wollastonite/PANI/Colemanite Composites

Wollastanit/PANI/Kolemanit Kompozitlerin Elektromanyetik Kalkanlama Etkinliği

Ethem İlhan ŞAHİN
Mehriban EMEK
Pages
83–89
Publication Date
2021-01-31
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

This microwave shielding performance can be modulated simply by controlling the content of polyaniline and content of wollastonite-colemanite in the samples for the wider and required frequency bands.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, composites of wollastonite-colemanite were produced by using mixed oxide technique.
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Key Findings & Data:The single phases wollastanite-colemanite compounds were measured after sintering between 900-1100°C for X-ray diffraction (XRD).
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Conclusion & Impact:This microwave shielding performance can be modulated simply by controlling the content of polyaniline and content of wollastonite-colemanite in the samples for the wider and required frequency bands.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Electromagnetic shielding effectiveness · Polyaniline · Wollastonite

Abstract

In this study, composites of wollastonite-colemanite were produced by using mixed oxide technique. The wollastonite-colemanite compositions were formed with various proportions for the structural analysis. The results of wollastonite-colemanite structural analysis indicated that second phase did not form in wollastonite and colemanite. The single phases wollastanite-colemanite compounds were measured after sintering between 900-1100°C for X-ray diffraction (XRD). Addionality, the wollastonite/polyaniline/colemanite composites were produced by hot pressing using the compositions of wollastonite-colemanite in different proportions and aniline. The weight ratios of (wollastonite-colemanite) and aniline were 1:1 respectively and epoxy resin was used to produce microwave shielding effectiveness composites. The microwave shielding performances of wollastonite/polyaniline/colemanite composites were investigated by shielding effect in 0 –8 GHz, using two–port vector network analyzer (VNA). A minimum of – 41.65 dB shielding effectiveness performance was obtained in 6.26 GHz at the thickness of 1.5 mm. According to the parameters determined in terms of properties, the wollastonite-colemanite compounds were produced as composite with a PANI base and their features were characterized for shielding effect. This microwave shielding performance can be modulated simply by controlling the content of polyaniline and content of wollastonite-colemanite in the samples for the wider and required frequency bands.

Özet

Bu çalışmada, wollastanit-kolemanit kompozitleri oksitlerin karışımı tekniği kullanılarak üretilmiştir. Wollastanit-kolemanit bileşimleri, yapısal analiz için çeşitli oranlarda oluşturulmuştur. Wollastonit-kolemanit yapısal analiz sonuçları, wollastanit ve kolemanit'te ikinci fazın oluşmadığını göstermiştir. Tek fazlı wollastanite-kolemanit bileşikleri, X-ışını kırınımı (XRD) için 900-1100°C arasında sinterlendikten sonra ölçüldü. Ayrıca wollastanit /polianilin/ kolemanit kompozitleri, farklı oranlarda wollastanit-kolemanit ve anilin bileşimleri kullanılarak sıcak presleme ile üretilmiştir. (Wollastonite-Kolemanit) ve anilinin ağırlık oranları sırasıyla 1:1 idi ve epoksi reçinesi mikrodalga kalkanlama etkili kompozitleri üretmek için kullanıldı. Wollastanit/ polianilin / kolemanit kompozitlerinin mikrodalga kalkanlama performansları, iki portlu vektör network analizörü (VNA) kullanılarak 0–8 GHz' de ekranlama etkisi ile incelenmiştir. 1.5 mm kalınlıkta 6.26 GHz'de minimum - 41.65 dB ekranlama etkinliği performansı elde edildi. Özellikler açısından belirlenen parametrelere göre wollastanit-kolemanit bileşikleri PANI bazlı kompozit olarak üretilmiş ve özellikleri kalkanlama etkisi için karakterize edilmiştir. Bu mikrodalga kalkanlama performansı, daha geniş ve gerekli frekans bantları için numunelerdeki polianilin içeriği ve wollastanit-kolemanit içeriği kontrol edilerek kolay bir şekilde modüle edilebilir.

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Cite This Article

ŞAHİN, E. İ., EMEK, M. (2021). Electromagnetic Shielding Effectiveness of Wollastonite/PANI/Colemanite Composites. Avrupa Bilim ve Teknoloji Dergisi, Sayı: 21, 83–89. https://ajindex.com/articles/471179

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