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However, it has still not been made biodegradable
GUARDA, Portugal (EFE) .- The future of development of plastic packaging passes, according to a research developed by two Chemists from the University of Aveiro, by the polymers that are extracted from plant sugars, especially some like corn.
Although plastics that can be obtained from plants are not biodegradable up to now, their properties are more compatible with the environment and, in addition, have a longer useful life, explained chemistry Andreia Sousa, who is developing the project with Catarina Araújo.
This type of plastics, obtained by polymers called PEF (polyethylene furanoate), against PET (polyethylene terephthalate). ) which is extracted from petroleum products, has particular utility in bottles.
"The important thing is that, unlike oil, there are many sources for this method of industrial production" is more environmentally friendly than oil because, during its preparation, it consumes much less energy. "energy," he adds.
Although it is not biodegradable, it retains time, its properties relative to the petroleum-derived plastic and, even, "the improvement of certain aspects. "
According to Sousa chemistry, plastic containers that can be made from plant sugars are much more beneficial for the conservation of drinking water and any type of food.
Another issue to consider is the degree of contamination it would produce in marine waters and its contact with fish.
Plastic Details
The Challenge is to obtain biodegradable plastics from plants
Attempts vain
Attempts to date have resulted in containers whose properties are not very resistant to heat. ] With corn
An example of a plant for making PEF plastic is corn
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