Composition of degradable plastic bag

source:other news release time:2022-12-20 Hits:

　　 Vacuum zipper bag

　　Generally speaking, there is no completely environment-friendly plastic bag, only some plastic bags are easy to degrade after adding some ingredients. That is degradable plastic. A certain amount of additives (such as starch, modified starch or other cellulose, photosensitizer, biodegradable agent, etc.) are added in the production process of plastic packaging products to reduce the stability of plastic packaging and make it easier to degrade in the natural environment. In Beijing, there are 19 units that develop or produce degradable plastics. The test shows that most degradable plastics begin to thin, lose weight, reduce strength and gradually crack into fragments after being exposed to general environment for 3 months. If these fragments are buried in garbage or soil, the degradation effect is not obvious. There are four disadvantages in using degradable plastics: one is to consume more food; Second, the use of degradable plastic products can not completely eliminate the "visual pollution"; Third, due to technical reasons, the use of degradable plastic products can not completely solve the "potential harm" to the environment; Fourth, degradable plastics are difficult to recycle due to special additives.

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