Fortunately, people are increasingly aware of the importance of caring for the environment and reducing the waste we produce. Biodegradable plastics were born with that purpose, which seem to be the solution to the great global crisis of plastic pollution.
However, is everything as advantageous as it seems at first glance? If you want to know more about the biodegradable plastics: what are they and types, do not stop reading this article by Green Ecologist. We explain it to you in detail!
It is known as biodegradability the type of decomposition by which some products and substances disintegrate thanks to the action of certain biological organisms, such as bacteria, insects, fungi, algae, etc. These organisms use substances to produce energy, and create other compounds through them, such as tissues, organisms or amino acids. In addition, there must be favorable conditions of temperature, light, humidity, oxygen, etc., so that this occurs in a relatively short period of time.
Therefore, a product is biodegradable when it is capable of disintegrating through the action of the environment and the biological organisms that inhabit it. There are two types of biodegradation. On the one hand, the aerobic biodegradation, which occurs outdoors, where there is oxygen; and on the other hand, anaerobic biodegradation, which occurs in the absence of this compound. The second produces biogas, mainly methane, a greenhouse gas that increases global warming.
Biodegradability is related to ecology and very often to the damage that plastics cause to nature, which take hundreds of years to decompose. The duration or time of decomposition is a very important aspect to take into account when determining the degree of biodegradability. For example, a banana peel takes just 2 to 10 days to degrade and paper about 2 to 5 months, so these examples are much easier to biodegrade than packaging that includes, for example, plastic and paper, even if the plastic is biodegradable.
We will tell you more about this topic in this other post by Green Ecologist about Biodegradability: examples of biodegradable products.
The biodegradable plastics are those that are made with renewable raw materials, such as wheat, corn or cornstarch, soybean oil, potatoes, bananas or cassava. Given their form of production, these plastics do biodegrade through microorganisms, so they can be reintroduced into the natural cycle of the environment in the form of organic fertilizer beneficial to the soil and with a degradation time much shorter than that of conventional plastics. . In this other article we explain how to make biodegradable plastic with cornstarch.
However, although it seems that this is the solution to all the problems that we have had so far with plastic and its contamination, unfortunately this is not the case. Although they come from natural raw materials resorbable by nature, biodegradable plastics still present many problems.
To conclude we can say that, although they are better than conventional ones, biodegradable plastics do not solve the current global problem of the plastic pollution. In addition, its decomposition depends a lot on the conditions that occur in the environment.
However, these plastics can be very useful for certain uses and as a means of further research on this problem. However, to this day, the best way to fight plastic pollution is based on reducing any use of plastics, reusing them if necessary, and replacing them with other materials whenever possible, such as plastic bags. cloth or cardboard. Here you can learn more Alternatives to replace plastic bags.
basically, there are two types of biodegradable plasticss:
Here are some examples of the usefulness of both types of biodegradable plastics.
It is known as oxobiodegradation to the process of decomposition of matter in which two stages converge, oxidation and biodegradation, which can happen at the same time or successively. This technology applicable during the manufacture of plastic thanks to the introduction of prodegrading agents allows this material to degrade in much less time than conventional plastic, from hundreds of years to just a few months with this oxo technology.
After the end of its useful life, the plastic, under abiotic conditions, begins to lose its properties and fragment. Then, through a cellular and oxidative phenomenon, the plastic becomes brittle and biodegrades into millions of particles invisible to the human eye. The possibility of their decomposition can be carried out in any environment with oxygen and without the need for water, they can be recycled and designed through recycled products.
These characteristics classify oxo-biodegradable plastic as a natural competitor with many advantages over other types of plastics. Thus, today we can find many products manufactured from oxo-biodegradable plastic:
If you want to read more articles similar to Biodegradable plastics: what they are and types, we recommend that you enter our category of ecological products.