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[ Jiuzhi Plastics News] Plastic packaging seems to be a double-edged sword, which puts some pressure on the environment, but because of its convenience and irreplaceable in the short term, there is still no way to completely abandon plastic packaging, but researchers still hope Can produce more environmentally friendly plastic packaging materials. For example, attempts to use biodegradable plastics or natural materials to prepare new packaging materials, and ACS recently reported a new result from researchers under the US Department of Agriculture who used a casein to extract a biodegradable packaging film. Materials, it is said that this packaging material can be eaten, in addition to the anti-corrosion properties of food packaging due to the plastic packaging film materials that are seen everyday.
Casein film material
According to reports, the micropores in the film material prepared from the medium protein of milk are smaller than the micropores in the existing plastic packaging film materials, and the casein film material is superior to the existing packaging plastics in the ability to block oxygen. The film material is more than 500 times. In addition to improving the fresh-keeping ability of packaging materials, it can also reduce the environmental pollution of packaging materials, because it is biodegradable, and even after packaging the food, even the packaging materials can be eaten.
The role of casein fusion orange peel
In addition, during the research, the researchers found that if the film material prepared by using this cow cheese protein alone has poor flexibility and is particularly prone to water, the researchers modified the citrus pectin to make the material more tough. And improved heat resistance and moisture resistance (citrus pectin can be used to prepare food grade coatings). To further enhance the performance of this packaging material, the researchers wrapped casein in a protective outer layer to keep it dry and clean. However, the use of traditional plastics was still reduced, and the significance was still there.
Regarding the use of this material, in addition to the above-mentioned film-forming materials, it has other uses, such as food-grade coatings, adhesives and the like. Earlier this year, the US Food and Drug Administration (FDA) announced a ban on the use of three perfluorinated compounds (PFCs) in food packaging materials. Researchers believe that this edible packaging material is a safe alternative to traditional plastic food packaging bags. Researchers have already produced samples for a company in Texas and hope to market them in the next three years.
Degradable plastic packaging demand is expected to reach 9.45 million tons by 2023
It is reported that the "2023 Degradable Packaging Market Forecast" report provides an in-depth analysis of the development of the degradable packaging market in the next decade. The report shows that the global packaging market is resistant to degradable plastics driven by renewable and degradable trends. Demand will reach 9.45 million tons in 2023, with an average compound annual growth rate of 33%.
At present, the global consumption of polymeric materials has exceeded 650 billion US dollars, of which North America and Europe have a market share of less than 25%, while Asia (including Japan) has a market share of about 40%; market share in other regions It is 13%. By 2023, Asia's demand for biopolymers will reach 34% of global demand, while Europe and North America's share of the global biopolymer market will decline.