Food packaging is an important measure to ensure that the transportation, sales and consumption of commodities are not damaged by external environmental conditions and to improve the value of commodities. With the continuous improvement of residents' quality of life, the impact of substances on residents' daily life is increasing, and the problem of white pollution is becoming more and more serious. Biodegradable polymer materials have become a hot spot in the research and development of food packaging materials. Biodegradable polymer materials do not need a special environment or a series of external conditions such as light, heat and water in the degradation process. They only need to use microorganisms to produce a good physicochemical reaction and finally generate carbon dioxide. All kinds of substances produced by the degradation reaction will not produce any pollution and pose little threat to human health.
Biodegradable polymer materials do not need a special environment or a series of external conditions such as light, heat and water in the degradation process. They only need to use microorganisms to produce a good physicochemical reaction and finally generate carbon dioxide. All kinds of substances produced by the degradation reaction will not produce any pollution and pose little threat to human health.
The biodegradable packaging bags - coffee bags and recyclable packaging bags - food packaging bags produced by Yantai Meifeng Plastic Packaging Co.
There are three main types of biodegradable polymer materials. One is the polymer materials produced by microorganisms, which are mainly obtained by microbial fermentation, and the most representative is polyhydroxybutyrate, which has good biodegradation properties. However, the processing and production costs of such materials are relatively high, and they are rarely used in specific production. The second is synthetic polymer materials. At present, the more commonly used synthetic polymer materials in the Chinese market are polyvinyl alcohol and polycaprolactone. Among them, polycaprolactone is widely used in food packaging. The third is natural polymer materials. Common natural polymer materials include cellulose, starch, protein, and chitosan as matrix materials. After using for a period of time, natural polymer materials can be degraded well and have no effect on the external ecological environment. any pollution.
Biodegradable polymers are one of the most innovative materials in the packaging field. Biodegradable polymers have the advantages of wide sources, recyclability, environmental protection and no pollution, but biopolymers have certain limitations in terms of heat resistance, oxygen and water vapor barrier properties, cost and mechanical properties. Therefore, the research of this packaging material needs to be further deepened to improve the shelf life, nutritional value and microbial safety of food.
As a result, more and more companies have begun to develop packaging made of biodegradable materials, keeping up with the trend of the times and adapting to new markets.
Post time: Sep-30-2022