Akademik Veri Yönetim Sistemi
Asiachem-19.Asian Chemical Congress, İstanbul, Türkiye, 9 - 14 Temmuz 2023, ss.270
The growing focus on seeking raw materials
from renewable sources and efforts to reduce the environmental impact of
plastic has created a greater demand for the development of biodegradable food
packaging because they are recyclable, non-toxic, and derived from natural
resources. İnnovations in food packaging with the development of composites
based on biopolymers have effectively improved the quality and safety of food,
which have attracted tremendous attention in the industry. In this study, the blended
nanocomposite films of PLA/PCL, PHA/PBS, and PHA/PHBV with different metal organic
frameworks (MOFs) by solvent-casting method have been investigated to develop
them as an environmentally friendly material with improved mechanical and
barrier properties, enabling their usage as replacements for traditional
petroleum-based packaging materials. The morphology and stability of film
samples were evaluated using thermogravimetric analysis, differential scanning
calorimetry (DSC), gel permeation chromatography, X-ray diffraction, and
scanning electron microscopy (SEM). Mechanical properties, water vapor
permeability (WVP), and oxygen transmission rate (OTR) of blended
bionanocomposite films were characterized to determine the effect of the type
and concentration of MOF nanoparticles. The tensile strength, storage modulus
and Tg were improved owing to the reinforcement of MOFs nanocrystals in the
blended polymers/MOFs bionanocomposites. All the films prepared with MOFs gain
the increase the resistance to oxygen and water vapor permeabilities.