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An ordinary plastic bag can be decomposed after 1000 years from being landfilled. A Canadian company produces "natural" plastic bags made of non-genetically modified corn. According to reports, this new plastic bag is several times more expensive than ordinary plastic bags, but its energy consumption during production is low, and it can be decomposed through landfill or home compost within 4 weeks to 12 weeks.
Do not let white trash harm the millennium
The plastic bags we use today are generally made of various polymers produced from oil or natural gas. Since the 1960s, ordinary plastic bags have been popularized as garbage bags and have now become one of the most commonly used items. Each year, people use trillions of plastic bags called “white trashâ€, and most of them are sent to landfills. The landfilled plastic bags can only decompose after 1,000 years.
Those plastic bags that are discarded by people often drift in the wind and fly around. If they are accidentally swallowed by birds or marine animals, they may also kill them.
"Natural" plastic bags came into being
At present, a Canadian company has begun producing "natural" plastic bags made of non-genetically improved corn. According to reports, this new plastic bag is several times more expensive than ordinary plastic bags, but its energy consumption during production is low, and it can be decomposed through landfill or home compost within 4 weeks to 12 weeks.
The 34-year-old Canadian MEC company that distributes outdoor recreation products is the first user of such plastic bags. The company's business philosophy is eco-friendly and promotes sustainable development, but in its chain stores, it uses more than 500,000 ordinary plastic bags each year. The company believes that the ecological significance of bio-plastic bags outweighs the impact of higher costs. At the end of last year, MEC decided to replace all existing "normal" plastic bags with "natural" plastic bags.
In fact, the concept of biopolymers or "natural plastics" has been proposed for decades. Henry Ford, the founder of Ford Motor Co., initially used soybeans as a raw material to produce automotive components. However, the low price of oil at that time made it difficult for bio-replacement products to have a foothold in the market. Now that oil prices have reached US$70 per barrel, high-priced oil, greatly improved manufacturing processes, and breakthroughs in R&D work, these factors have combined to make agricultural products have great potential and gradually become an important source of raw materials for the plastics production industry in the future.
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