What is a degradable packaging bag?
degradable packaging bags refer to packaging bags that degrade under the action of microorganisms such as bacteria and algae that exist in nature. Degradable packaging bags need to add a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.). ) Reduce their stability during the production process, and then plastic packaging bags are more easily degraded in the natural environment. After testing by the Environmental Protection Product Quality Supervision and Inspection Bureau of my country, the indicators of degradable packaging bags meet or exceed my country's quality standards.
degradable packaging bag refers to a new type of material made by biological, chemical and physical methods using renewable biomass, including crops, trees, other plants and their residues and contents as raw materials. In a natural burial or composting environment where microorganisms exist, degradable packaging bags can be decomposed into carbon dioxide and water. After being discarded, the biodegradable packaging bags can be completely decomposed by environmental microorganisms, and then converted into inorganic substances, which become an integral part of the natural carbon cycle.
Degradable packaging bags can be divided into photodegradable plastics, biodegradable plastics, chemically degradable plastics and composite degradable plastics according to the environmental conditions that cause degradation. Photolysis refers to plastics that absorb sunlight and cause photochemical reactions to decompose. Photodegradable plastics refer to plastic materials that undergo aging and splitting reactions when exposed to sunlight or other strong light sources, lose their mechanical strength and decompose. As long as structures and groups that promote photodegradation are added to polymer materials, photodegradable plastics can be produced. The methods for producing photodegradable plastics include copolymerization and addition methods.
degradable packaging bags are widely used in downstream, and have great potential for development in the future, and also have great potential for substitution in the packaging industry. In addition to meeting the growing market’s requirements for packaging quality and quantity, the development of degradable packaging bags must take resource conservation, easy recycling after use, and easy environmental degradation as the starting point for technological development. At present, many developed regions have promulgated legislative measures for green packaging, which will surely promote the use of degradable packaging bags.
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