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Research and Application Progress of Biodegradable Polymer Materials (Part 1)

Mar. 31, 2020
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With the continuous development of China's society and economy, people's living standards continue to improve, and people have higher requirements for living environment and working and living environment. Many traditional materials are gradually abandoned because they are not easy to degrade, have poor reproducibility, and are not conducive to sustainable development of the environment. Biodegradable materials came into being. Green biodegradable bag wholesalerbelieves that it can improve people's living environment, improve people's quality of life, and to some extent help to promote Sustainable development.

1. Advantages of biodegradable materials and degradation mechanism

China's definition of biodegradable materials is a new type of material that can decompose with various microorganisms such as bacteria and fungi existing in the natural environment under non-human conditions. High-quality biodegradable vest bag contains good physical properties, stable chemical properties, and can be quickly and completely degraded in the natural world by disposing of it in the natural environment. The process of converting it from high molecular organic matter to small molecular inorganic matter finally becomes a high molecular material which is a component of the carbon cycle in the natural environment. Common easily degradable materials include: polyester, collagen, polylactic acid, and so on.

Research and Application Progress of Biodegradable Polymer Materials (Part 1)

Biodegradable Vest Bag 

1.1 Advantages of biodegradable materials

Easily degradable materials have several advantages. the first . It has stable chemical properties, can be kept stable at normal temperature, and is not prone to chemical reactions with other substances in the surrounding environment. Second, it is conducive to protecting traditional petroleum resources. It does not depend on petroleum resources. It is not an extract of petroleum. Third, it can reduce the pollution to the natural environment, which is conducive to environmental sustainability

Development, to provide people with a better quality of living and living environment. After it is discarded, its waste can be degraded by microorganisms in the natural environment. Fourth, follow the trend of the times and be in line with international standards.

1.2 Analysis of the degradation mechanism of biodegradable materials

The biodegradation process of easily degradable materials is very complicated, with many influencing factors. It mainly includes the following points:

First, the degradation process under physical action. Factors such as light energy, geomagnetic radiation, water, humidity, and temperature in the natural environment can cause changes in the structural structure of material molecules and the stability of material molecules. For example: radiation-sensitive polymer and polymer materials can make the inside of the material molecules active under the effect of geomagnetic radiation. When a certain degree of geomagnetic radiation is reached, the entire material molecule will eventually become active, and eventually the material Decomposed.

Second, the degradation process under chemical action. Factors such as pH, pH and oxygen content in natural conditions will cause the breaking of macromolecular chemical bonds in materials.It is their chemical reaction that generates new small molecular groups. The process by which molecules are broken down into simple small inorganic molecules.

Third, the degradation process under the action of microorganisms. The microbial population in nature is huge, and under their action, it can effectively break down large molecular groups of materials. Generally speaking, for a substance, the change of its molecular weight will make the substance's water solubility worse, and water will not be able to pass through the cell membrane structure of microorganisms. This has caused the ability of microbial populations in nature to degrade materials. Worse. However, under the interaction of multiple microbial populations, a variety of degrading enzymes will be produced. These degrading enzymes, when combined, can decompose the complex structure of polymer materials according to the way in which their enzymes can best function. Microbial degrading enzymes will have targeted chemical bond cleavage. Through two processes, anaerobic metabolism and aerobic metabolism, water carbon dioxide, methane and other small by-products are formed.

 


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