Gamma Radiation Shielding and Thermal Properties of the polystyrene /Tungsten (VI) Oxide Composites

Year 2021, , 395 - 407, 31.08.2021

Berna Körpınar Buket Canbaz , Füsun Çam , Hakan Akat

https://doi.org/10.18185/erzifbed.875739

Cited By: 2

Abstract

In the current study, it was shown that polystyrene (PS) composites holding tungsten (VI) oxide were formed in groups (10% to 50%) by radical polymerization. For this goal, the styrene reacted with BPO for 2.5 hours at 70 °C in tetrahydrofuran (THF) to give the consistent polymer. Synthesized PS were defined by FTIR, GPC (Mn = 7900 g/mol PDI = 1.66), SEM and 1H NMR spectroscopy. PS-tungsten (VI) oxide composites formed between 80-85°C. The gamma-ray of composites was calculated using the NaI(Tl) scintillation detector. Linear attenuation coefficients were also estimated hypothetically by the XCOM platform, taking into account the fundamental analysis of composites and comparing them with empirical outcomes. Among the composites studied, the best protective material was PS -50% W03 with lower absorption thicknesses and a higher linear slimming coefficient. Thermal degradation of unirradiated and irradiated polymer composites has also been examined

Keywords

polystyrene, transmission parameters, polymer-composites, tungsten(VI) oxide, gamma-ray mass attenuation.

Polistiren / Tungsten (VI) Oksit Kompozitlerin Gama Radyasyon Durdurma ve Termal Özellikleri

Abstract

Bu çalışmada, radikal polimerizasyon ile tungsten (VI) oksit polistiren (PS) kompozitlerin gruplar halinde (% 10-% 50) oluştuğu gösterilmiştir. Bu amaç için stiren, istenilen polimeri vermek üzere tetrahidrofuran (THF) içinde 70 ° C'de BPO ile 2.5 saat reaksiyona girdi. Sentezlenen PS, FTIR, GPC (Mn = 7900 g / mol PDI = 1.66), SEM ve 1H NMR spektroskopisi ile tanımlandı. 80-85 ° C arasında oluşan PS-tungsten (VI) oksit kompozitlerin gama ışını, NaI (Tl) sintilasyon detektörü kullanılarak hesaplandı. Lineer soğurma katsayıları, bileşiklerin temel analizi dikkate alınarak ve deneysel sonuçlarla karşılaştırılarak XCOM platformu tarafından varsayımsal olarak da hesaplandı. İncelenen kompozitler arasında en iyi koruyucu malzeme, daha düşük absorpsiyon kalınlıkları ve daha yüksek lineer soğurma katsayısı ile PS-%50 W03'tir. Işınlanmamış ve ışınlanmış polimer kompozitlerin termal bozunması da incelenmiştir.

Keywords

polistiren, geçirgenlik parametreleri, polimer kompozitler, tungsten(VI) oksit, gama ışını kütle soğurması

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