Alçak yoğunluklu polietilenin, ceviz ve fındık kabuğu tozu takviyeleri ile eriyik akış değerlerindeki değişimin incelenmesi

Year 2025, Volume: 1 Issue: 1, 35 - 38, 28.05.2025

Çağdaş Güneş , Akar Doğan , Yılmaz Kısmet

Abstract

Bu çalışmada, öğütülmüş ceviz ve fındık kabuğu tozu takviyelerinin poliolefinler grubuna ait alçak yoğunluklu polietilenin (LDPE) eriyik akış değerleri üzerine etkileri incelenmiştir. Öncelikle boyutları 75 ile 150 mikron arasında değişen ceviz ve fındık kabuğu tozları LDPE ile mekanik olarak ayrı ayrı ağırlıkça %5, %10 ve %15 oranlarında karıştırılmış ve eriyik akış analizleri gerçekleştirilmiştir. Yapılan deneyler sonucu kütlesel ve hacimsel eriyik akış değerleri belirlenerek elde edilen sonuçlar grafiklerle açıklanmıştır. Sonuçlar, dolgu oranı arttıkça MFI ve MVR değerlerinde genel bir azalma meydana geldiğini göstermiştir. Özellikle %15 fındık kabuğu tozu ilavesi, saf LDPE’ye kıyasla MVR değerinde %35'e varan bir düşüşe neden olmuştur. Ceviz kabuğu tozunda ise bu düşüş daha sınırlı kalmıştır.

Keywords

düşük yoğunluklu polietilen , fındık kabuğu tozu , ceviz kabuğu tozu , eriyik akış indeksi

Investigation of changes in melt flow index of low density polyethylene with walnut and hazelnut shell powder additives

Abstract

In this study, the effects of walnut and hazelnut shell powder reinforcements on the melt flow values of low density polyethylene (LDPE) belonging to the polyolefins group were investigated. First, walnut and hazelnut shell powders with sizes ranging from 75 to 150 microns were mechanically mixed with LDPE separately at 5%, 10% and 15% by weight and melt flow analyses were performed. As a result of the experiments, mass and volumetric melt flow values were determined and the results obtained were explained with graphics. The results showed that there was a general decrease in MFI and MVR values as the filler content increased. In particular, the addition of 15% hazelnut shell powder caused a decrease of up to 35% in the MVR value compared to pure LDPE. This decrease was more limited for walnut shell powder.

Keywords

Low density polyethylene , hazelnut shell powder , walnut shell powder , melt flow index

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