Deniz EMRE, Yunus Emre ŞİMŞEK, Levent DEĞİRMENCİ

KMnO4 Eklenen Nişasta Partikülleri ile Gliserolün Buz Çözücü olarak birlikte kullanımı

Nişasta ile modifiye edilmiş KMnO4 (MS partikülü) ile gliserin çözeltisinden oluşan biyobozunur bir buz çözücü sistemi sunulan çalışma ile önerilmiş ve test edilmiştir. Deneyler değişen KMnO4 (10, 15, 25%), MS partikül, gliserin % (20, 40, 60) ve çözücü miktarları (3, 6, 12 ml) ile gerçekleştirilmiştir. Çalışmanın temel hedefi gliserin ve KMnO4 arasında ufak çaplı ekzotermik bir reaksiyonu tetiklemek ve reaksiyon sonucu açığa çıkan ısı ile buzun erimesini hızlandırmaktadır. Denemeler iki gruba ayrılmıştır. İlk olarak en yüksek sıcaklık artışını sağlayan en iyi koşullar istatistiksel olarak belirlenmiş ve buradan elde edilen sonuçların değerlendirilmesi ile buz çözme denemeleri gerçekleştirilmiştir. İstatistiksel analizler KMnO4 ve MS partikül miktarlarının erime zamanının azaltılmasında birinci derecede rol aldığını göstermiştir. MS partikülleri ile gerçekleştirilen buz çözme denemelerinde kontrol sistemlerine göre erime zamanında azalmalar görülmüştür. Bu sonuç geleneksel gliserin bazlı buz çözücülere göre önerilen sistemin üstünlüğünü göstermektedir. MS partiküllerinin tekrarlı kullanımlarında erime zamanının kademeleri olarak azalması çalışmanın en önemli sonucudur. Partiküllerin tekrarlı kullanımlarında artan bir performans sağlanması kayda değerdir. Sonuçlar aynı zamanda partiküllerin ekonomik olarak üretilebileceklerini göstermesi açısında da önem taşımaktadır.

Anahtar Kelimeler:

Nişasta, KMnO4, Buz çözücü, gliserin

Combined Utilization of KMnO4 Containing Starch Particles with Glycerol as De-Icer

An alternative de-icer system consisted of biodegradable starch-modified KMnO4 (MS), and glycerol solution was proposed and tested with the present study. Experiments were performed with varying KMnO4 (10, 15, 25%), MS particle (0.06, 0.12, 0.24 g), glycerol % (20, 40, 60) and solution amounts (3, 6, 12 ml). The main idea was to induce a miniscule exothermic reaction between glycerol and KMnO4 to enhance the melting of ice via heat release. The experiments were divided into two groups. Initially, the best conditions to yield the highest temperature increase was statistically determined, and de-icing experiments were conducted based on the interpretation of these results. Statistical analyses showed that the amount of KMnO4 and MS had merely been responsible for maintaining an effective decrease in melting time. De-icing experiments conducted in the presence of MS particles indicated a decrease in melting time compared to control systems. This result indicated superior performace of the proposed system over traditional glycerol based de-icers. The higher decrease in melting time was observed in the presence of spent MS particles indicating their repetitive use and economically sound production.

Keywords:

Starch, KMnO4, de-icer, glycerol,

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