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Main bio based materials for degradable packaging bags

2022-04-21 09:07:05
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Key bio based materials for degradable packaging bags

Plastic bags can often be seen, providing convenience for our daily life. It can be seen that we cannot live without plastic bags. However, the air pollution caused by large-scale application cannot be ignored. Nowadays, people are more concerned about the environmental pollution caused by plastic bags. Plastic bags have also become the trend of environmental protection. At this stage, the development trend of the newly developed and designed plastic packaging film in the world is towards the perspective of high efficiency, non-toxic, harmless, low carbon, environmental protection, good quality, low price and easy application.

Biodegradable packaging bags come into being from time to time. Biodegradable packaging bags are not easy to cause air pollution. Degradable packaging bags not only maintain convenience, but also maintain the natural environment. At this stage, biodegradable packaging bags are not popular, so we have to understand biodegradable packaging bags. The meaning of degradable bags is that they can be degraded, but degradable bags can be divided into "degradable" and "total degradable". Degradable packaging bag refers to the plastic packaging bag that is easy to degrade in the geographical environment after adding additives (such as cassava starch, modified starch or other fibers, initiators, biodegradable agents, etc.) in the production process. In the process of reliability reduction. Degradable packaging bag refers to the degradation of plastic packaging bag into water and carbon dioxide. The specific source of this kind of degradable materials is corn, cassava and other commodities that are produced and processed into lactic acid, namely PLA.

Polylactic acid (PLA) is a new kind of nano technology microorganism and renewable microbial degradable material. Cassava starch is converted into glucose water according to the effect of residual sugar, and then into high-purity lactic acid according to the alcohol of glucose water and some strains. It has good biodegradability and can be degraded by natural microbial strains after application. Carbon dioxide and water are not easy to pollute the environment, which is very beneficial to the protection of the ecological environment. They are raw materials for environmental protection for employees.

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