Introduction of the raw material of biodegradable plastic
The term “Biodegradable plastics” refers to a type of plastics which can meet the requirements of usage and maintain its properties during its shelf life, but can be degraded into environmentally friendly substances after using under natural environmental conditions. By optimizing the choice of raw materials and production process, the Biodegradable plastic can be gradually decomposed into fragments and eventually decomposed completely under the combined action of Sunlight, rain and microorganisms for several days or months.
Advantages of biodegradable plastic
During the global“Ban plastic” Action and facing the situation of enhanced environmental awareness, biodegradable plastic is seen as a substitute for the traditional disposable plastic. The Biodegradable plastic is more easily decomposed by the natural environment than traditional polymer plastics, and is more practical, degradable and safe. Even if the Biodegradable plastic enters the natural environment accidentally, it will not cause much harm and can indirectly help to collect more organic waste while reducing the impact of organic waste on the mechanical recovery of plastic waste.
The Biodegradable plastic has its advantages in performance, practicability, degradability and safety. In terms of performance, the Biodegradable plastic can achieve or surpass the performance of traditional plastics in certain fields. While in terms of practicality, biodegradable plastic has similar application and sanitary properties to similar traditional plastics. In terms of degradability, biodegradable plastic can be degraded quickly in the natural environment (specific microorganisms, temperature and humidity) after using and become easily exploitable debris or non-toxic gases, thus reducing their impact on the environment. In terms of safety, substances produced or left over from Biodegradable plastic processes are not harmful to the environment and do not affect the survival of humans and other organisms. The biggest obstacle to replacing traditional plastics is the fact that biodegradable plastic are more expensive to produce than their conventional or recycled counterparts. As a result, biodegradable plastic has more substitution advantages in applications such as packaging, agricultural film, etc. , where the use time is short, recovery and separation is difficult, performance requirements are not high, and impurity content requirements are high.
Biodegradable packaging bags
Nowadays, the production of PLA and PBAT is more mature, and their total production capacity is in the forefront of the biodegradable plastic, PLA has excellent performance, and as the cost falls, it is expected to expand from the high-end medical field to bigger market such as packaging and agricultural film in the future. These Biodegradable plastic may become main alternative to traditional plastics.
Plastic bags that claim to be biodegradable were still intact and able to carry shopping three years after being exposed to the natural environment, a study has found.
The research for the first time tested compostable bags, two forms of biodegradable bag and conventional carrier bags after long-term exposure to the sea, air and earth. None of the bags decomposed fully in all environments.
The compostable bag appears to have fared better than the so-called biodegradable bag. The compostable bag sample had completely disappeared after three months in the marine environment but researchers say more work is needed to establish what the breakdown products are and to consider any potential environmental consequences.
According to the research, Asia and Oceania account for 25 percent of global demand for biodegradable plastics, with 360,000 tons consumed globally. China accounts for 12 percent of the global demand for biodegradable plastics. At present, the application of biodegradable plastics is still very few, market share is still very low, mainly biodegradable plastics prices are high, so the overall performance is not as good as ordinary plastics. However, it will take much more share in the market as people aware the importance of using biodegradable bags to save the world. In the future, with the further research of biodegradable plastics technology, the cost will be further reduced, and its application market is expected to further expand.
Therefore, biodegradable bags are gradually becoming customers’ first choice. Top Pack is focusing developing this kind of bags for years and always receiving positive comments from majority of customers.
Post time: Jul-15-2022