Relationships between molecular weighth properties and physical properties of Petkim hdpe homopolymer petilen yy so464 and determination of its ideal. . .
Küçük Resim Yok
Tarih
1996
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ege Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
ABSTRACT Purpose of this study is to determine the relationships between molecular weight properties and physical properties of PETKİM HDPE homopolymer PETİLEN YY S0464, and using these relationships and melt flow rate range defined for PETİLEN YY S0464 to determine its ideal molecular weight and physical properties. ABSTRAKT Bu çalışma, PETKİM Petrokimya Holding A.Ş. Aliağa Yüksek Yoğunluklu Polietilen Fabrikası'nda üretilmekte olan, yüksek yoğunluklu polietilen homopolimeri PETİLEN YY S0464 türünün molekül ağırlığı özellikleriyle fiziksel özellikleri arasındaki ilişkisini belirlemek, bu ilişkileri ve söz konusu tür için tanımlanmış olan erime akış hızı aralığını dikkate alarak, ideal molekül ağırlığı ve fiziksel özelliklerini tesbit etmek amacıyla yapılmıştır. II
SUMMARY Purpose of this study is to determine the relationships between molecular weight properties and physical properties of PETKIM HDPE homopolymer PETILEN YY S0464 and its ideal molecular weight and physical properties. Two type HDPE homopolymers which had different molecular weights and physical properties produced in two reactors operated under the specified conditions were blended in the specified ratios (0%, 25%, 50%, 75%, 100%) to prepare seven samples. Seven sample molecular weight properties (Mg^/M^ Mz/Mw, Mz+1, Mp, Mn, %, Mz, Mv, dispersity, intrinsic viscosity) were determined by using gel permeation chromatography and their physical properties (Melt flow rate, density, Izod impact strength, Olsen stiffness, tensile strength at yield point, tensile strength and elongation at break point, Nonnewtonian index, environmental stress cracking resistance, melting point, Vicat softening point) were determined according to ASTM. Then, to determine relationships between above mentioned properties, graphics were prepared. Using these graphics and melt flow rate range defined for PETILEN YY S0464, ideal molecular weight properties and physical properties for PETILEN YY S0464 were determined. 74
SUMMARY Purpose of this study is to determine the relationships between molecular weight properties and physical properties of PETKIM HDPE homopolymer PETILEN YY S0464 and its ideal molecular weight and physical properties. Two type HDPE homopolymers which had different molecular weights and physical properties produced in two reactors operated under the specified conditions were blended in the specified ratios (0%, 25%, 50%, 75%, 100%) to prepare seven samples. Seven sample molecular weight properties (Mg^/M^ Mz/Mw, Mz+1, Mp, Mn, %, Mz, Mv, dispersity, intrinsic viscosity) were determined by using gel permeation chromatography and their physical properties (Melt flow rate, density, Izod impact strength, Olsen stiffness, tensile strength at yield point, tensile strength and elongation at break point, Nonnewtonian index, environmental stress cracking resistance, melting point, Vicat softening point) were determined according to ASTM. Then, to determine relationships between above mentioned properties, graphics were prepared. Using these graphics and melt flow rate range defined for PETILEN YY S0464, ideal molecular weight properties and physical properties for PETILEN YY S0464 were determined. 74
Açıklama
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Anahtar Kelimeler
Kimya, Chemistry, Fiziksel özellikler, Physical properties, Polietilen, Polyethylene, Polimerler, Polymers