If the degradation rate of the plastic bag is a little faster and it is non-toxic and harmless to the natural environment, people do not need to use plastic bags. Recently, a new type of plastic bag appeared in Shencheng to achieve this, and its “fully degraded†title means that it can dissolve into the soil within six months without leaving stubborn chemical components. However, the reporter learned that, due to manufacturing costs, the price of this truly environmentally-friendly plastic bag is nearly two or three times higher than that of an ordinary plastic bag of the same size, and the high price means that it is trapped in the applause. Hey.
Fully degradable plastic bag appeared Shencheng's fastest degradation for six months without leaving any traces.
"100% degradable", "can be completely degraded after 6 months of waste", a few days ago, printed with such a green plastic bag appears in Shanghai. For this member of the new plastic bag who dared to challenge the family of plastic bags, the reporter finally saw it in the Wal-Mart supermarket in the city. The white color and slight matte texture feels softer than normal plastic bags in the hands. In addition, the single weight seems to be heavier. Therefore, it is put in the hands and it has a sense of drape.
“Because of the special raw material of this kind of plastic bag, the degree of degradation can reach 60% within 90 days after it is discarded.†For the application of fully degradable plastic bags, Hu Minghua, head of public relations at the Shanghai area of ​​Wal-Mart Supermarket, told the reporter. Theoretically speaking, this kind of plastic bag can be completely degraded into water, carbon dioxide and methane in half a year, because these products exist in nature, so it can be regarded as a completely non-toxic and harmless plastic bag to the environment.
At the same time, an expert from Nanjing Agricultural University also told reporters: “The raw materials of ordinary plastic bags are generally used petroleum cracking products, such as polyethylene and polypropylene, which cannot be degraded in a short period of time, whereas full-biodegradable plastic bags are used. Starch, resin, and plastic additives are used as raw materials, so that it can completely degrade the buried land within six months to one year."
The cost is too high to be accepted by the market to test the water in the fully degradable plastic bag market.
The fully biodegradable plastic bag can achieve a very environmental protection effect. However, during an interview, the reporter found that because the plastic bag is sold at a higher price, it is "appreciable."
"One-and-a-half yuan is the same size as an ordinary medium-sized plastic bag. The latter only costs 0.2 yuan. This kind of environmentally-friendly plastic bag is too expensive." The reporter saw the vast majority of consumption at Wal-Mart supermarket Wujiaochang in the afternoon. Those who showed great interest in the full-biodegradable plastic bags hanging from the cashier's desk chose "not sympathetic" after asking about the price. Ms. Xu said that every time she strolls around the supermarket, she says that she has to buy 3 or 4 plastic bags, and that long-term use of the “expensive†plastic bags will cost the environment too much.
In fact, Wal-Mart Stores, a provider of plastic bags, also noticed this. "The procurement cost is about 0.69 yuan and the selling price is 0.7 yuan. The supermarket is hardly profitable. However, for consumers, it is understandable that it is difficult to accept." Hu Minghua revealed that the plastic bags currently supplied in this city belong to Special supply products during the Olympic Games are also temporary measures. After the supply of plastic bags is completed, supermarkets will continue to use ordinary plastic bags.
As for the higher cost of plastic bags, Hu Minghua said that the original intention of the promotion of such plastic bags is to implement environmental protection concepts, but from the current situation, they will be considered in the future with the production of plastic bags to discuss the province, take a look Whether there are more ways to save money will not only make plastic bags more environmentally friendly, but also lower the cost of control.
Fully degradable plastic bag born "defective"
Experts suggest that shopping for eco-bags is still the best policy. The reporter found that in addition to price, some of the natural “defects†of biodegradable plastic bags are also the reason why they are difficult to survive in the market.
In an interview, many people in the industry generally pointed out that due to the relationship of manufacturing materials, fully degradable plastic bags cannot be made as transparent as ordinary plastic bags, so they lose a lot on appearance, at least this defect makes it with those external Table decoration requirements of high-quality goods have been "missed."
“Actually, the cost of the promotion of fully degradable plastic bags will be very difficult to reduce in the short term, and some developed countries in foreign countries have not promoted them very much.†Experts from Nanjing Agricultural University stated that it is worth learning from these countries that it is not to promote the use of fully degradable plastic bags. It is better to focus on the classification of waste, as long as the classification is reasonable enough, the full use rate of plastic bags is high enough to achieve the same environmental protection.
Fully degradable plastic bag appeared Shencheng's fastest degradation for six months without leaving any traces.
"100% degradable", "can be completely degraded after 6 months of waste", a few days ago, printed with such a green plastic bag appears in Shanghai. For this member of the new plastic bag who dared to challenge the family of plastic bags, the reporter finally saw it in the Wal-Mart supermarket in the city. The white color and slight matte texture feels softer than normal plastic bags in the hands. In addition, the single weight seems to be heavier. Therefore, it is put in the hands and it has a sense of drape.
“Because of the special raw material of this kind of plastic bag, the degree of degradation can reach 60% within 90 days after it is discarded.†For the application of fully degradable plastic bags, Hu Minghua, head of public relations at the Shanghai area of ​​Wal-Mart Supermarket, told the reporter. Theoretically speaking, this kind of plastic bag can be completely degraded into water, carbon dioxide and methane in half a year, because these products exist in nature, so it can be regarded as a completely non-toxic and harmless plastic bag to the environment.
At the same time, an expert from Nanjing Agricultural University also told reporters: “The raw materials of ordinary plastic bags are generally used petroleum cracking products, such as polyethylene and polypropylene, which cannot be degraded in a short period of time, whereas full-biodegradable plastic bags are used. Starch, resin, and plastic additives are used as raw materials, so that it can completely degrade the buried land within six months to one year."
The cost is too high to be accepted by the market to test the water in the fully degradable plastic bag market.
The fully biodegradable plastic bag can achieve a very environmental protection effect. However, during an interview, the reporter found that because the plastic bag is sold at a higher price, it is "appreciable."
"One-and-a-half yuan is the same size as an ordinary medium-sized plastic bag. The latter only costs 0.2 yuan. This kind of environmentally-friendly plastic bag is too expensive." The reporter saw the vast majority of consumption at Wal-Mart supermarket Wujiaochang in the afternoon. Those who showed great interest in the full-biodegradable plastic bags hanging from the cashier's desk chose "not sympathetic" after asking about the price. Ms. Xu said that every time she strolls around the supermarket, she says that she has to buy 3 or 4 plastic bags, and that long-term use of the “expensive†plastic bags will cost the environment too much.
In fact, Wal-Mart Stores, a provider of plastic bags, also noticed this. "The procurement cost is about 0.69 yuan and the selling price is 0.7 yuan. The supermarket is hardly profitable. However, for consumers, it is understandable that it is difficult to accept." Hu Minghua revealed that the plastic bags currently supplied in this city belong to Special supply products during the Olympic Games are also temporary measures. After the supply of plastic bags is completed, supermarkets will continue to use ordinary plastic bags.
As for the higher cost of plastic bags, Hu Minghua said that the original intention of the promotion of such plastic bags is to implement environmental protection concepts, but from the current situation, they will be considered in the future with the production of plastic bags to discuss the province, take a look Whether there are more ways to save money will not only make plastic bags more environmentally friendly, but also lower the cost of control.
Fully degradable plastic bag born "defective"
Experts suggest that shopping for eco-bags is still the best policy. The reporter found that in addition to price, some of the natural “defects†of biodegradable plastic bags are also the reason why they are difficult to survive in the market.
In an interview, many people in the industry generally pointed out that due to the relationship of manufacturing materials, fully degradable plastic bags cannot be made as transparent as ordinary plastic bags, so they lose a lot on appearance, at least this defect makes it with those external Table decoration requirements of high-quality goods have been "missed."
“Actually, the cost of the promotion of fully degradable plastic bags will be very difficult to reduce in the short term, and some developed countries in foreign countries have not promoted them very much.†Experts from Nanjing Agricultural University stated that it is worth learning from these countries that it is not to promote the use of fully degradable plastic bags. It is better to focus on the classification of waste, as long as the classification is reasonable enough, the full use rate of plastic bags is high enough to achieve the same environmental protection.
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