POLİPROPİLEN/ÜRE FORMALDEHİT POLİMER KARIŞIMININ FİZİKSEL ÖZELLİKLERİNİN İNCELENMESİ

Öz

Endüstride polimerler mukavemetleri ve düşük yoğunlukları nedeniyle hem karışım hem de kompozit halinde değişik uygulamalarda sıklıkla kullanılmaktadırlar. Bunların dışında üretim kolaylığı, geniş malzeme seçimi ve atık malzemelerle karışımları bu polimerleri uygulamada ön sıralara çekmektedir. Bu çalışmada, polipropilen içerisine değişik oranlarda atık üre formaldehit tozları katılarak polimer karışımları üretilmiş ve bu üre formaldehitin polipropilene eklenmesi ile bazı mekanik ve fiziksel özelliklerindeki değişimler incelenmiştir. Üre formaldehit tozları polipropilen içerisine % 5, 10, 20 ve 30 oranlarında katılarak çift vidalı ekstruderde karıştırılmış ve granül halinde üretilmiştir. Daha sonra bu granüller kurutulmuş ve enjeksiyon makinesinde standartlara uygun şekilde test numuneleri basılmıştır. Elde edilen polimer karışımlarının yoğunluk, sertlik, ısıl çarpılma sıcaklığı (HDT), vicat yumuşama sıcaklığı, nem emme oranı, limit oksijen indeksi, erime akış indeksi, aşınma oranı, statik sürtünme katsayısı ve morfolojik yapısı incelenmiştir.

Anahtar Kelimeler

• polipropilen
• üre formaldehit
• toz
• enjeksiyon
• ekstrüzyon
• fiziksel özellikler

Destekleyen Kurum

yok

Etik Beyan

yok

Teşekkür

yok

Investigation of the properties of the polymer composite obtained by adding urea formaldehyde polymer powder to polypropylene

Öz

In industry, polymers are frequently used in various applications, both in mixture and composite form, due to their strength and low density. Apart from these, ease of production, wide selection of materials and mixtures with waste materials make these polymers to the fore in application. In this study, polymer mixtures were produced by adding waste urea formaldehyde powders in different proportions into polypropylene, and changes in some mechanical and physical properties were investigated by adding this urea formaldehyde to polypropylene. Urea formaldehyde powders were added to polypropylene at the rates of 5, 10, 20 and 30%, mixed in a twin screw extruder and produced as granules. Then, these granules were dried and test samples were moulded on the injection machine in accordance with the standards. Density, hardness, vicat softening temperature, thermal distortion temperature, moisture absorption amount, limit oxygen index, melt flow index, wear rate, static friction coefficient and morphological structure of the obtained polymer blends were investigated.

Anahtar Kelimeler

• Polypropylene
• urea formaldehyde
• powder
• injection
• extrusion
• physical properties

Kaynakça

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