As the most frequently used material in our daily life, plastics are light and durable, with the characteristics of low cost and various functions. Combined with the rapid development of modern express delivery and other industries, they bring great convenience to our life. Express packaging, food preservative film, take away lunch boxes, supermarket shopping bags, garbage bags, it can be said that plastic is everywhere. However, with the large-scale use of non degradable food bags and non-standard plastic recycling system, white pollution has become an urgent problem in the world.

From the "opinions on further strengthening plastic pollution control" of nine departments in early 2020 to the introduction of plastic restriction policies of local governments in the middle of this year, and then to the notice issued by the general office of the Ministry of Commerce on January 11 to promote the green development of e-commerce enterprises. E-commerce enterprises in key areas should gradually stop using non degradable plastic food bags and disposable plastic woven bags, reduce the use of non degradable plastic food bags, and promote alternative products of recyclable, recyclable and degradable food bags.

From the central government to the local government, from opinions to decisions, and then to the implementation of the plastic ban policy, in this context, the plastic ban can be said to be the general trend. As a substitute for environmental protection of plastic food bags, all walks of life may usher in rapid development opportunities. In view of the essential characteristics of various substitutes, and the current environmental management system in China is not perfect, the key to solve the problem of plastic pollution in China is the technology of eco degradable plastics, which can directly control the white pollution from the source of plastic pollution.

On the one hand, can the degradation performance of eco degradable plastic food bag technology meet the requirements of environmental protection? Eco degradable plastic food bag technology is to add eco degradable masterbatch in the production process of ordinary polyethylene products. On the premise of not changing the performance of the original plastic food bag, the polyethylene plastic which originally needs hundreds of years to be degraded in nature can be degraded into water, carbon dioxide and soil through photo / thermal oxidation and environmental microorganism in a few years Organic matter, returning to the ecosystem, is a new environmental protection technology to achieve complete degradation.

On the other hand, the favorable policies from the central level to local provinces will also drive the steady growth of domestic demand for degradable plastic food bags, and whether the production capacity of ecological degradable plastic food bags can meet the market demand. By 2025, the demand for degradable food bags in China is expected to be 2.38 million tons, with a market scale of 47.7 billion yuan; by 2030, the demand is expected to be 4.28 million tons, with a market scale of 85.5 billion yuan. According to the estimation of Soochow securities, the demand space for degradable plastic food bags in the four fields of express packaging, disposable plastic tableware, plastic shopping bags and agricultural plastic film will form a market space of about 2.5 million tons in 2025, and the market scale will reach about 50 billion yuan.

Such a huge amount of market demand also poses a huge challenge to the upstream, middle and downstream enterprises involved in the production of degradable food bags. Due to the strong compatibility of the technology itself, there is no need to transform the original blow molding food bag equipment, which greatly reduces the cost of equipment transformation and personnel training required by other degradable food bag technologies on the market. In addition, with the use of polyethylene substrate, the cost of raw materials is lower than other technologies, and the cost of degradable plastic food bag products is lower than that of other technologies In addition to complete degradation, it still has the same characteristics as the original polyethylene, and is superior to the national standard in mechanical tension, load-bearing, sealing and other aspects. Therefore, both in terms of degradation performance and supply capacity, eco degradable plastic technology is at the forefront of the industry.