Akademik Veri Yönetim Sistemi
Journal of Boron, cilt.7, sa.4, ss.535-542, 2022 (Scopus)
In this study, different amounts of boron oxide (B2O3) (0.05-0.8% by mass) were incorporated to polyethylene terephthalate (PET) by extrusion method, followed by production of PET/B2O3 granules and bottles using the injection and stretch-blow-molding (SBM) methods, respectively. The produced PET/B2O3 composites were characterized in terms of mechanical performance, chemical and thermal properties. With the increase of B2O3 content, the viscosity of PET composite decreased and the lowest viscosity value was measured as 0.385 dL/g for %0.8 B2O3 additive. Bottle could not be produced since B2O3 content higher than 0.2% caused low viscosity. The crystallization temperature (Tc) of PET composites increased by about 8.2ºC due to the increase in the amount of B2O3. While there was no effect of B2O3 additive on isophthalic acid (IPA) released as a result of the degradation of PET, there was a decrease in the amount of acetaldehyde (AA) and an increase in the amount of carboxylic acid (COOH) and diethylene glycol (DEG). It was determined that the mechanical performances of PET composite bottles were higher than that of pure PET bottles. Therefore, the use of 0.05% and 0.1% B2O3 can contribute to reducing the problems that may occur during the transportation and storage of PET bottles.