Now that the speed limit order for plastic bags has come down, the usual small shops or roadside shops are generally ordinary plastic bags, pp, pe, etc., which are generally extremely difficult to degrade or non-degradable, followed by degradable plastics. Adding degradants to some plastic particles is still not very useful, and the decomposed plastic molecules will still have an impact on the environment.

However, some large-scale supermarkets and shopping malls have used fully degradable bags, which are made of modified raw materials synthesized by pbat, pla and corn starch. This type of bags are fully degradable and tougher than ordinary plastic bags. . It will be completely degraded into carbon dioxide and water in about 3 months in the soil, and it can be stored in a dry warehouse for 9 to 12 months.

The difference between fully biodegradable plastic bags and ordinary plastic bags

1. Different materials

Fully biodegradable plastic bags (that is, environmentally friendly plastic bags) are made of PLA, PHAs, PBA, PBS and other polymer materials. The non-degradable traditional ordinary plastic bags are made of other plastic materials such as PE.

2. Different production standards

Fully biodegradable plastic bags need to meet the national standard GB/T21661-2008, which has reached the environmental protection standard. The traditional non-degradable ordinary plastic bags do not need to comply with this standard.

3. The decomposition time is different. The fully biodegradable plastic bags can generally be decomposed within one year, while the Olympic environmental protection plastic bags can even begin to decompose 72 days after being discarded. It takes 200 years for ordinary non-degradable traditional plastic bags to degrade.

Advantages of using fully biodegradable plastic bags

1. Environmental protection: The use of fully biodegradable plastic bags can greatly reduce the problem of white pollution caused by the inability of traditional ordinary plastic bags to decompose.

2. Excellent performance: fully biodegradable plastic bags use starch as the main raw material, the degradation ability is better than other materials, the service life is longer than that of paper bags, and the cost is lower than that of paper bags.

3. Exquisite and multi-functional: All biodegradable plastic bags and ordinary plastic bags have the same functions except for the composition and materials. They can be beautifully printed, moderate in size, and can pack many products.

4. Recycling: Fully biodegradable plastic bags are soft, wear-resistant, foldable, and have a good texture, and have a long recycling period.