27/11/2025
Microplastics – an increasingly important topic? No, it's been important since humans produced first polymers from crude oil!
Even back then, the problem was serious, because when producing a new material, they didn't even consider what to do with the substance once it was no longer needed!
No one claims that plastic is bad. Thanks to plastics, developments have occurred all areas of life, from food storage, through medicine, spaceflight, electronics, and even tires.
However, the problem is plastic recycling. We say that a given country has a 17% recycling rate (Malta), or over 60%, as in the case of Slovakia.
What does this mean, though? This means that, at best, 40% of new plastics still end up outside the recycling system and pollute the environment!
The problem is that even when recycling a specific material, we don't approach the process comprehensively. We don't analyze the composition; we simply "recover" the material for reprocessing in the cheapest and simplest way possible, assuming that this will solve the problem and make us, as a company/individual, environmentally neutral or even positive.
Honest materials are easier, while all composites require a comprehensive approach, examining what's inside and what happens to the material we're "not interested in."
Technology - how do we recycle? How many hazardous substances or their forms do we create during recycling?
An example - the simplest, found in every home in Europe, America, and Asia - is furniture board, a construction board for building houses.
Such a board is a composite of wood (+-90%) and glue (+-10%), as well as other substances necessary, for example, to reduce VOC emissions, increase water resistance, fire resistance, or resistance to mold and mildew.
What do we recover? ONLY wood (with residues of other substances, of course).
How do we recover? Mechanically, by shredding the composite. What's created: Most often, a mixture of wood fibers and particels, plus plastic, paper, veneer foil, and metal components. We mechanically recover the wood, and the rest goes to further recycling.
It would seem like a perfect system! Well, no. The entire process isn't airtight. At each stage, microplastics are created, which enter workers' lungs, the soil, water, and air, and then migrate into the environment.
Furniture board is just one example, but this applies to all mechanical shredding processes. By caring for the environment, we create another problem.
There are other ways to do it.
There are biopolymers that are as stable as plastics and can be subjected to natural or industrial biodegradation processes into individual, natural components, without polluting the environment.