1、 Price:
The price of biodegradable plastic bags is 2-3 times higher than that of the original plastic products, which can not be fully accepted by consumers in the short term. For example, if a medium-sized supermarket vest bag (about 26x42cm in size) is made into a qualified degradable plastic bag with the same thickness, the cost will be at least 3 times. According to industry practice, after the price increases by manufacturers and dealers at all levels, the market price in the hands of consumers may have to double again.
2. The implementation of the policy:
Under the background that the cost and price are much higher than that of traditional plastics, if biodegradable plastics want to expand the market, relatively strong policy implementation is required. It is necessary to reduce the supply of traditional plastic bags, increase the supply of degradable plastic products, and strengthen Consumer education guides consumers to gradually accept biodegradable plastics. The most fundamental thing is to guide enterprises to reduce the production cost of biodegradable plastics, reduce the cost of circulation links, and minimize the resistance brought by the high cost and high price to the market promotion of degradable plastics. Punishment is only one of the means, but punishment alone cannot fundamentally solve the resistance to the promotion of biodegradable plastics.
3、 Impact of implementing standards and pseudo degradation:
In September 2020, China Light Industry Federation formulated the guidelines for the classification and identification of degradable plastic products, which clearly requires that the biodegradation rate of degradable plastics should be ≥ 90%, and other conditions such as the content of heavy metals and specific elements must be met at the same time before they can be counted as degradable plastics. But in actual work, some enterprises will produce some degradation rates far below 90%. The existence of this pseudo degradable plastic increases the resistance to the market promotion of real biodegradable plastics.
4、Performance of degradable products:
In addition to the price, some of the properties of biodegradable plastics are insufficient compared with traditional LDPE, LLDPE, PP, PET and PS, such as tensile strength, water resistance, etc. Biodegradable plastics have more or less shortcomings. This kind of short board needs to be solved through modification and other means.
5、 Deterioration in inventory period:
Like other commodities, biodegradable plastics require a certain period from production to end consumers, which is its degradable characteristics. Products often deteriorate during the inventory period. According to some manufacturers of biodegradable plastic bags, biodegradable plastic bags placed in the air for a long time can be torn into pieces with a gentle tear. In contrast, Newly produced fully degradable plastic bags require considerable effort. This undoubtedly adds a lot of difficulties to the sales and inventory management of enterprises.
6、 Supporting measures:
Industrial chain design of biodegradable plastics the production, modification, processing, circulation, use and subsequent degradation treatment of plastic particles should be opened up in each link, and the industrial chain should form a closed loop in order to expand the market. Biodegradable plastics need industrial composting. Composting can meet the degradation requirements in 3-6 months.
