Properties of PET-PEN blends produced by extrusion and injection blow-molding

被引：0
|
作者：
Sánchez-Solís, A
Garcia-Rejon, A
Martinez-Richa, A
Calderas, F
Manero, O
机构：
[1] Natl Autonomous Univ Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
[2] Univ Guanajuato, Fac Quim, Gunanajuato 36050, Mexico
来源：
JOURNAL OF POLYMER ENGINEERING | 2005年 / 25卷 / 06期
关键词：
PET-PEN blends; rheology; transesterification;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this work, blends made of polyethylene terephthalate (PET) and polyethylene 2,6 naphthalene dicarboxylate (PEN) were prepared by melt extrusion processed at several temperatures and residence times. The blends with composition up to 20 wt % PEN were characterized with regard to their degree of transesterification and their rheological properties. Subsequently, bottles were produced by injection-stretch blow-molding and their mechanical properties were measured. It was found that improved PET-PEN blends were produced at 270 degrees C with.a PET content of 15 and 20 wt % and residence time processing of 4 minutes. Both blends present a low degree of transesterification, block conformations, high shear viscosity and improved tensile properties.
引用
收藏
页码：553 / 570
页数：18
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