The emergence of biodegradable plastics such as common Biodegradable Sugarcane Fast Food Package is considered to be a tool for dealing with plastic pollution, especially for solving environmental pollution problems of plastic food contact materials such as disposable straws. “Automatically disappear without treatment”is a general perception or expectation of biodegradable plastics.
However, in November 2015, the United Nations Environment Program published the report “Biodegradable Plastics and Marine Waste: Misunderstandings, Concerns and Impacts on the Marine Environment”, calling for the elimination of misunderstandings caused by “biodegradable plastics” labels. The widespread use of products labeled with "biodegradable" labels does not significantly reduce the amount of plastics entering the ocean or reduce the physical and chemical risks of plastics to the ocean. Food plastic packaging labeled "degradable", "100% degraded", etc. is easily misunderstood by consumers, resulting in increased behavior of random purchase and disposal, which may exacerbate the problem of plastic contamination.
It can be said that the role of biodegradable plastics in the control of plastic pollution has been debated for a long time. In addition to the uncertainties of policies, unsound standards, and disputes in scientific research, the public and industry are biodegradable plastics. Unclear and chaotic concepts are also an important cause, resulting in misuse, misuse of biodegradable signs, and even false publicity. Some typical misconceptions include equating bio-based plastics with biodegradable plastics and treating degradability as fully biodegradable. So how do you know the biodegradable plastic correctly? Biodegradable Bowl Supplier will come to tell you.
1. Is bio-based plastic a biodegradable plastic?
Not necessarily! Some bio-based plastics are biodegradable plastics, and some are not.
Bio-based plastics are plastics produced under the action of microorganisms based on natural substances such as starch. Biomass for biobased plastic synthesis can be derived from corn, sugar cane or cellulose.
Biodegradable plastic refers to the action of microorganisms (such as bacteria, mold, etc.) under natural conditions (such as soil, sand, seawater, etc.) or under specific conditions (such as composting conditions, anaerobic digestion conditions or aqueous culture solutions). Fungi and algae, etc., which cause degradation and eventually completely degrade into carbon dioxide, water, methane, mineralized inorganic salts and new materials.
It can be seen that bio-based plastics are defined and divided based on the source of the material components; biodegradable plastics are classified from the perspective of the end of material life.
2. Is degradable energy considered biodegradable?
No! The degradation of plastic refers to the process of significant changes in structure and loss of performance under the influence of environmental conditions (temperature, humidity, moisture, oxygen, etc.). Specifically, it can be divided into mechanical degradation, biodegradability, photodegradation, thermal oxygen degradation and photo-oxidation degradation.
Whether a certain plastic will completely biodegrade is affected by many factors, including crystallinity, additives, microorganisms, temperature, humidity, environmental pH and length of time. In the absence of conditions, many degradable plastics are not only unable to achieve complete biodegradation, but may also have a negative impact on the environment and human health. For example, in the case of some oxygen-degrading plastics, only the fragmentation of the material occurs and the plastic particles are invisible to the naked eye.
Faced with the challenges of environmental hazards of plastic waste and marine micro-plastics, the application of biodegradable plastics in food contact materials is receiving more and more respect and attention, while subsidizing the Biodegradable Bowl Price. It can improve the utilization rate to a greater extent, and clear definition of biodegradable plastics, standard labeling, and effective public education are the key to promoting the healthy development of biodegradable food packaging industry, developing circular economy, and promoting effective treatment of plastic pollution. Initiative.