Crystallization of Polyethylene Terephthalate
نویسندگان
چکیده
منابع مشابه
Immobilization of silver nanoparticles on polyethylene terephthalate
Two different procedures of grafting with silver nanoparticles (AgNP) of polyethylene terephthalate (PET), activated by plasma treatment, are studied. In the first procedure, the PET foil was grafted with biphenyl-4,4'-dithiol and subsequently with silver nanoparticles. In the second one, the PET foil was grafted with silver nanoparticles previously coated with the same dithiol. X-ray photoelec...
متن کاملConfinement-induced vitrification in polyethylene terephthalate
Dynamic mechanical thermal analysis performed on cold-drawn polyethylene terephthalate PET , cold crystallized annealed in the temperature interval 100–140 °C, reveals the presence of marginally glassy domains above the annealing temperature Ta. This suggests that the thermodynamic force driving crystallization causes the structural arrest of some noncrystalline domains. The latter thus need a ...
متن کاملPolyethylene Terephthalate May Yield Endocrine Disruptors
BACKGROUND Recent reports suggest that endocrine disruptors may leach into the contents of bottles made from polyethylene terephthalate (PET). PET is the main ingredient in most clear plastic containers used for beverages and condiments worldwide and has previously been generally assumed not to be a source of endocrine disruptors. OBJECTIVE I begin by considering evidence that bottles made fr...
متن کاملKinetics of Relaxation and Crystallization of Poly(ethylene Terephthalate)
The kinetics of structural relaxation and crystallization of poly(ethylene terephthalate) (PET) is studied. It is demonstrated that the activation energy depends strongly on fictive temperature Tf . The dependence of the glass transition temperature Tg on the heating rate q + is investigated for samples that were previously cooled down at a rate q = 12.5 K/min. Angell et al [1] compare the ther...
متن کاملKinetics of Polyethylene Terephthalate (PET)and Polystyrene (PS) Dynamic Pyrolysis
Thermo-chemical treatment (TCT) such as pyrolysis is getting recognized as a valid route for (i) materials and valuable products and petrochemicals recovery; (ii) waste recycling; and (iii) elemental characterization. Pyrolysis is also receiving renewed attention for its operational, economical and environmental advantages. In this study, samples of polyethylene terephthalate (PET) and polystyr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kobunshi Kagaku
سال: 1969
ISSN: 1884-8079,0023-2556
DOI: 10.1295/koron1944.26.644