IMPORTANT DEGRADATIONS IN POLYETHYLENE TERAPHTALATE EXTRUSION PROCESS

Polyethylene terephthalate (PET) is one of the most used thermo-plastic polymers. The total consumption of PET has been about 30 million tons in the year 2000. Polyester fibers constitute about 60 % of total synthetic fibers consumption. During extrusion, PET polymer is faced to thermal, thermo-ox...

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Bibliographic Details
Main Authors: Şule ALTUN, Yusuf ULCAY
Format: Article
Language:English
Published: Pamukkale University 2003-01-01
Series:Pamukkale University Journal of Engineering Sciences
Subjects:
Online Access:http://dergipark.ulakbim.gov.tr/pajes/article/view/5000089733
Description
Summary:Polyethylene terephthalate (PET) is one of the most used thermo-plastic polymers. The total consumption of PET has been about 30 million tons in the year 2000. Polyester fibers constitute about 60 % of total synthetic fibers consumption. During extrusion, PET polymer is faced to thermal, thermo-oxidative and hydrolytic degradation, which result in severe reduction in its molecular weight, thereby adversely affecting its subsequent melt processability. Therefore, it is essential to understand degradation processes of PET during melt extrusion.
ISSN:1300-7009
2147-5881