The difference between biodegradable plastic bags and ordinary plastic bags

The difference between biodegradable plastic bags and ordinary plastic bags

Time:2021-1-5

In recent years, we humans have been carrying out scientific research, and now we have discovered degradable plastic bags, which completely replace the plastic bags we used before. So what is the difference between the two? Traditional PE bags are disposable plastic bags.

The difference between biodegradable plastic bags and ordinary plastic bags

The plastic bag we used before was PE plastic bag, which is also a very useful material. Because it is tough but waterproof, it can hold more items and has better carrying capacity. This is why we have been using PE non-degradable plastic bags for decades. However, the chemical composition of this plastic bag cannot be decomposed naturally. Some scientists say it may take 50 years or more for these plastic bags to decay slowly. During the decay process, chemical substances are continuously released, causing the surrounding environment to deteriorate.

The difference between biodegradable plastic bags and ordinary plastic bags

The degradable plastic bag is made of brand new polylactic acid and aliphatic, which seems to be no different from ordinary plastic bags. However, once it is accidentally discarded into the environment, it will naturally decompose and decompose into water and carbon dioxide in a short time like other objects. This is the difference between degradable plastic bags and non-degradable plastic bags, and also the main difference between environmental protection and non-environmental protection! Advocate that everyone can use biodegradable materials and stop using PE plastic bags!

The difference between biodegradable plastic bags and ordinary plastic bags

There are significant differences between fully biodegradable garbage bags and ordinary garbage bags. First of all, in terms of materials, fully biodegradable garbage bags are PLA + PBAT hybrid modified materials, and they are all biodegradable materials. Ordinary garbage bags are made of petroleum-based plastic or added with recycled materials.

Secondly, the tensile properties of fully biodegradable garbage bags are the same as ordinary garbage bags, but the carrying capacity is almost the same. It is very important that all biodegradable garbage bags, kitchen waste or leaves can be buried directly without additional treatment, because under this composting condition, all biodegradable garbage bags can be degraded into carbon dioxide and water , And become organic fertilizer, thereby restoring soil nutrition and ensuring ecological balance. However, ordinary garbage bags cannot be directly landfilled due to materials and other factors, so they need to be classified. If not disposed of, they will deteriorate the soil and pollute the environment.

The difference between biodegradable plastic bags and ordinary plastic bags

The degradable garbage bag is: this kind of garbage bag is made by adding about 25% of biological materials to polyethylene, thereby achieving rapid degradation of the garbage bag. The so-called biological materials mainly include corn starch, glycerin and other production aids. This mixed degradable garbage bag can be “swallowed” by microorganisms in nature after being filled with garbage, that is, it can be completely degraded into fragments, and the degradation time is about 1/100 of that of ordinary garbage bags.

The difference between biodegradable plastic bags and ordinary plastic bags

Ordinary garbage bags: They not only pollute the environment, but also have the opposite nature of environmentally friendly garbage bags (degradable).

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