Researchers in Iran have produced a new type of clay-titanium oxide nanocomposite films with photocatalytic ability, which are used for packaging foodstuff. .
The films, which enhance the blocking properties of normal polyethylene films, also control the polyethylene production.
With the capability to postpone aging, the packaging films minimise pollution after harvesting the products and increase agricultural products' durability, english.farsnews.com reported.
According to the researchers, the films attain photocatalytic characteristics due to the presence of titanium dioxide nanoparticles within the films' structure.
The characteristics are said to control the amount of ethylene production and the microbial population in the packed products during preservation.
In the first phase, the packaging nanocomposite films were synthesised through a melting reaction process, using the nanoparticles.
The appearance and the physical, chemical and microbiological parameters of packed apricots were evaluated in the second phase.
Research results showed that the addition of nanoparticles to the polyethylene polymer matrix will change its mechanical, thermal and rheological properties when compared to normal polyethylene matrices.
The amount of clay increases in the polymeric matrix, resulting in the decrease of nanocomposite films' permeability.
Bodaqi, one of the researchers of the study, said that by considering the production of nanocomposite films throughout the melting reaction process technique, the present research can be introduced as an industrial method.