PP VE PP/TALK KOMPOZİTLERİN MEKANİK VE KÖPÜKLENME ÖZELLİKLERİ ÜZERİNE ERGİYİK SICAKLIĞI VE ENJEKSİYON BASINCININ ETKİLERİNİN İNCELENMESİ

Yıl 2018, Cilt: 13 Sayı: 1, 44 - 56, 20.01.2018

Salih Hakan Yetgin Hüseyin Ünal

Öz

Bu deneysel
çalışmada, katkısız polipropilen (PP) termoplastik polimeri ve ağırlıkça %20
oranında talk katkılı polipropilen (PP-T) kompozit malzemesi kullanılmıştır.
Köpük ajanı olarak endotermik tip kimyasal köpük ajanı kullanılmıştır.
Enjeksiyon basıncı ve ergiyik sıcaklığı gibi üretim parametrelerinin katkısız
polipropilen ve talk katkılı polipropilen kompozit köpük malzemelerin ortalama
hücre boyutuna, hücre sayısına, köpük tabakası kalınlığına, köpük yoğunluğuna
ve mekaniksel özelliklerine olan etkileri incelenmiştir. Elde edilen deney
sonuçlarından ergiyik sıcaklığının artması ile hücre çapı artarken, malzeme
yoğunluğu, kabuk tabakası kalınlığı, hücre yoğunluğu ve darbe dayanımı
azalmıştır. Enjeksiyon basıncının artması ile köpük yoğunluğu, kabuk tabakası
kalınlığı, hücre çapı ve darbe dayanımı azalırken, hücre yoğunluğu ise
artmıştır. 

Anahtar Kelimeler

PP Köpük, Köpük Ajanı, Hücre Morfolojisi, Mekanik Özellikler, Kompozit

Kaynakça

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