Alüminyum Tozu Katkılı Polipropilenin Ergiyik Akış İndeksi Özelliklerinin İncelenmesi

Yıl 2017, Cilt: 20 Sayı: 1, 51 - 59, 01.03.2017

Abdülmecit Güdaş Servet Temel Mehmet Altuğ

Öz

Gerçekleştirilen bu çalışmada, üç farklı basınç, üç farklı sıcaklık, üç farklı katkı oranı ve üç farklı alüminyum tozu büyüklüğü kullanılarak polipropilen (PP) esaslı kompozit malzeme üretilmiş ve bunların Ergiyik Akış İndeks (EAİ) özellikleri incelenmiştir. Alüminyum (Al) tozlarını ilavesi sırasında PP ile uyum sağlanması için %0,2 oranında maleik anhidrit ve aynı oranda oksitlenmeyi önlemek için fenolik esaslı antioksidan (Songnox-1010) ilave edilmiştir. Çalışmanın deneysel sonuçlarına göre EAİ değeri kayma hızı ve kayma gerilmesi, basınç ve sıcaklık artışına bağlı olarak artmış ancak artan katkı oranı ve Al toz büyüklüğüne bağlı olarak azalmıştır. Bunun yanında, EAİ ile kayma hızı arasında yüksek EAİ değerleri elde edilen numunelerde basınç 1379 kPa, sıcaklık 250 oC katkı oranı %10 ve partikül boyutu olarak 44-100 μm olarak tespit edilmiştir.

Anahtar Kelimeler

Polimer Kompozitler, Polipropilen, Al Tozu, Ergiyik Akış İndeksi

Investigation of Melt Flow Index Properties of Polypropylene Reinforced Aluminum Powder

Öz

In this study, PP-based composite reinforced with three pressures, three temperatures, three reinforcement rates, and three reinforcement sizes were produced and their Melt Flow Index (MFI) properties were investigated. Moreover, 0.2% maleic anhydride and fenolic based antioksidant in order to prevent oxidation were also added during addition of aluminum powders. According to the results of the study, MFI values degreases with increasing viscosity. On the contrary, MFI values increases with increasing shear rate and shear stress. In addition, values of 1379 kPa, 250 C, 5%, 210-300 μm and 44-100 μm were determined as pressure, temperature, reinforcement ratio and particle size respectively for the samples having high MFI values.

Anahtar Kelimeler

Polymer Composites, Polypropylene, Al Powder, Reinforcement, Melt Flow Index

Kaynakça

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