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What are the characteristics of fully biodegradable plastic bags?

2021-08-26 14:13:30
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1、 What is full biodegradable plastic bag

1. Materials

All biodegradable plastic bags are made of biodegradable raw materials PLA, PBAT and corn flour.

2. Advantage

Throw it away in the environment or compost, and degrade it into carbon dioxide and water according to the surrounding microorganisms. Generally, the dissolution cycle time is about one year.

3. Performance

The fully biodegradable plastic bag feels very soft and smells slightly fragrant. This is because the production and processing masterbatch is PBAT and the modifier is the raw material of corn flour. Therefore, it also smells a light aroma of bract rice. The raw material of all biodegradable plastic bags comes from corn flour.

2、 How to complete degradation? It can be degraded without special solution, which depends on the degradable materials in the raw materials for production and processing.

PBAT is actually a biodegradable raw material with lower production and manufacturing cost, and has good structural mechanical properties and biosafety performance. The production process of PBAT in China is very perfect and the production equipment is relatively excellent. As PBAT is also a natural degradable raw material, the fully biodegradable plastic bag produced and processed by PBAT can also replace the high-pressure polyethylene disposable packaging bag. The raw materials for the production and processing of fully biodegradable plastic bags are generally composed of five different raw materials, among which polyterephthalic acid / adipic acid / succinic acid and polylactic acid or cassava starch plastics are the components with high cost performance.

3、 Degradation cycle time of fully biodegradable plastic bags:

1. In the geographical environment, that is, under the conditions of sun, soil layer and water, the cycle time of complete degradation is generally about 1 year;

2. Under the condition of retting, the degradation cycle time is about one year, which is completely degraded and transformed into carbon dioxide and water.


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