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With the increasing severity of environmental problems, the use of plastic bags has attracted widespread attention. We all know that ordinary plastic bags take hundreds of years to degrade in the natural environment, which puts a huge burden on the ecology. As an emerging environmentally friendly alternative, photodegradable plastic bags have gradually come into our view. So, how does this new type of plastic bag perform in terms of strength and usability compared to traditional plastic bags?
How photodegradable plastic bags work
The core of photodegradable plastic bags lies in the particularity of their materials. Unlike traditional plastic bags, these bags can accelerate the degradation process through the action of ultraviolet rays under the irradiation of sunlight. This means that in a sunny environment, their service life is relatively short and they will eventually be converted into harmless biomass. According to relevant research, photodegradable plastic bags usually begin to degrade within a few months under sunlight, while ordinary plastic bags take decades.
Strength performance: who is better?
In daily use, strength is one of the most important indicators of plastic bags. According to the results of multiple experiments, photodegradable plastic bags have similar strength to ordinary plastic bags when they are not degraded, and can bear similar weight. For example, a certain brand of photodegradable plastic bags can bear up to 10 kg in the test, which is comparable to the bearing capacity of most ordinary plastic bags. However, once the photodegradable bags begin to degrade, their strength will decrease rapidly, resulting in an inability to bear weight. Therefore, photodegradable plastic bags are more suitable for short-term use, especially on sunny days.
Availability: Choice or replacement?
In terms of usability, the performance of photodegradable plastic bags is also controversial. Although they can be used normally in the sun, their degradation rate will be significantly slowed down in dark and humid environments, and may even cause the performance of plastic bags to deteriorate. Therefore, consumers need to consider the use environment and time when using photodegradable plastic bags. On the other hand, ordinary plastic bags are more versatile, suitable for a variety of environments, and their cost is generally lower. In some cases, the cost of using photodegradable plastic bags may be higher than that of ordinary plastic bags, which also affects their popularity.
Photodegradable plastic bags have their own advantages over ordinary plastic bags in terms of strength and usability. Their advantages in terms of environmental protection are undoubtedly significant, but there are certain limitations in terms of strength and applicable environment. In the face of the challenge of plastic pollution, the choice of plastic bags should be based on actual usage. On the road to sustainable development, consumers and producers need to work together to choose more environmentally friendly solutions for our planet. Let us act together, make responsible choices, and contribute to future environmental protection!
