Diana GREGOR-SVETEC, Barbara TISLER-KORLJAN, Mirjam LESKOVSEK, Franci SLUGA

HAM VE GERİ DÖNÜŞÜM POLİPROPİLEN POLİMERLERİNİN KARIŞIMINDAN ELDE EDİLEN MONOFİLAMENTLER

Çalışmada, Slovenya’da toplanan ambalaj teleflerinden elde edilen %100 geri dönüşüm polipropilen liflerinin kullanımı ele alınmaktadır. Bu araştırmanın amacı , eriyikten monofilament lif çekiminin optimizasyonunun sağlanması ve ham, geri dönüşüm polipropilenpolimeri ve bunların karışımlarından üretilen liflerin özelliklerinin karşılaştırılmasıdır.Monofilamentler; %100 ham polimer, %85 ham -%15 geri dönüşüm polimeri ve %50 ham -%50 geri dönüşüm polimerlerinden üretilmişlerdir. Ham polimer içerisine geri kazanım polimerinin eklenmesinin kristaliniteyi ve monofilamentlerin mukavemetlerini de etkileyen ortalama moleküler oryantasyonu düşürdüğü bilinmektedir. Bir miktar polietilen parçalar da içeren geri dönüşüm polimerinin, ham polimer ile karışabilirliğinin düşük olması sebebiyle karışım polimerinden elde edilen liflerin gözenekli, kolay kırılır ve sert olduğu, düşük kopma mukavemeti gösterdiği görülmektedir

Anahtar Kelimeler:

Polipropilen, Geri dönüşüm polimeri, Eriyikten lif çekimi, Mukavemet özellikleri, Monofilament

MONOFILAMENTS PRODUCED BY BLENDING VIRGIN WITH RECYCLED POLYPROPYLENE

Our research addresses the use of 100% recycled polypropylene from separately collected packaging waste in Slovenia for themanufacture of monofilaments. The goal of this research was to optimise the melt spinning of monofilaments and to compare theproperties of monofilaments obtained from the virgin polymer and from blends of virgin and recycled polymer. Monofilaments werespun from the pure virgin polymer, from a blend of 85% virgin and 15% recycled polymer, and from 50% virgin and 50% recycledpolymer. It was established that the addition of the recycled polymer to the virgin polymer lowered the crystallinity and averagemolecular orientation of as-spun monofilaments, which influenced the tensile properties of the monofilaments. Because of the poormiscibility of the virgin with the recycled polypropylene, which also contained some fractions of polyethylene, the as-spunmonofilaments were porous, brittle and rigid, and had a high tendency to break

Keywords:

Polypropylene, Recycled polymer, Melt spinning, Tensile properties, Monofilament,

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