What is the difference between non degradable shopping bags and roll up bags, fresh keeping bags, an

In our daily life, plastic bags are a very common and common item, plastic bags have also brought a lot of convenience to our lives, but with its popularity and its wide use, it has also brought us a lot of environmental pollution and a lot of environmental troubles. <>

And plastics are also divided into two types, one is degradable plastics and the other is non-degradable plastics. For our daily life, in fact, there are more degradable plastics used, such as the garbage bags we usually use, some fresh-keeping bags, even roll bags and other plastic supplies are degradable plastics, it is relatively light and thin, very lightweight, and can even be negligible, and will burn quickly when burning. It doesn't produce some particularly pungent odors, which are some of the advantages over non-degradable shopping bags.

It is also very convenient for some of our packaging and some use, and the quality of the garbage bag is very light and thin. It is also prone to tearing, but its material is degradable and can be secreted. But like the quality of a shopping bag we buy in the supermarket for a few cents is very good for us, and it is very large, generally white or transparent, the weight is very heavy relative to degradable plastics, and the harm brought by non-degradable plastics to our daily life is very great, non-degradable plastic bags are heavier than degradable plastic bags, for the degree of combustion, non-degradable plastic bags have a great odor when burning, and they are not easy to burn.

Its material is artificially synthesized, and the biggest problem is that the synthesis is simple, and it cannot be decomposed and burned under general conditions, which will cause secondary pollution and produce toxic gases. Compared with degradable plastics, it is convenient and environmentally friendly for our daily life. <>

Non-degradable bags are ordinary PVC plastic bags, which are not easy to degrade. The roll bag is a high-density polyethylene plastic, which is non-toxic and odorless, and can be used for food packaging. Fresh-keeping bags are made of food cling film, which is used to preserve vegetables and fruits, cooked food, etc.

The main component of garbage bags is plastic, and it will not decompose for a long time, which is polluting.

The difference between non-degradable shopping bags and roll bags, fresh-keeping bags, and garbage bags is the cost of construction, the cost of non-degradable shopping bags is lower, while the cost of roll bags, fresh-keeping bags, and garbage bags is higher!

The materials used to make them are different, and the time they can be degraded by the land is also different, but they all have one thing in common, which is that they will pollute the environment, so try to use these things as little as possible.

Yes, one is biodegradable plastics synthesized by microorganisms, referred to as bioplastics, including biopolyester, biocellulose, polysaccharides and polyamino acids, etc., which are a class of plastics that can be completely degraded by microorganisms in nature.

Two. Photodegradable plastics Photodegradable plastics refer to plastics that can be degraded under the action of light.

Scientists in many countries, in order to control white pollution, look for products that can replace plastic bags and reduce environmental pollution. Later, a lot of various degradable bags appeared on the Internet. It is roughly divided into three types, degradable plastic bags, microbial degradable bags, and biodegradable bags.

Degradable plastic bag: It is a plastic bag made of polyethylene plastic, mixed with photodegrader and calcium carbonate and other mineral powders, also known as photodegradable plastic bags. This plastic bag decomposes under the action of sunlight.

However, the decomposed polyethylene still exists in the natural environment, although the existence of white pollution cannot be seen in the sight, but the white pollution is still infringing on the environment around us in the form of fine particles.

Microbial degradable bags: plastic bags made of polyethylene plastic and mixed with biodegradable agents such as starch, also known as biodegradable plastic bags. This kind of plastic bag mainly relies on the action of microorganisms to decompose, and the effect is the same as that of photodegradable plastic bags, which treats the symptoms but not the root cause.

Biodegradable bag: With corn as raw material, polylactic acid made by fermentation is the main material, and after degradation, it completely becomes a biodegradable material of carbon dioxide and water, which belongs to the real degradable bag, which can be said to be a substitute product for plastic, which can fundamentally solve the problem of plastic pollution, rather than treating the symptoms but not the root cause. The Sengtor brand of degradable bags is one such product.

It is a shopping bag made of biodegradable plastic.

It does not need to be decomposed after many years, its significance lies in the short decomposition time of degradable plastics refers to plastics that add a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.) in the production process, reduce stability, and are easier to degrade in the natural environment.

Tests have shown that most degradable plastics begin to thin out, lose weight, lose strength, and gradually crack into fragments after 3 months of exposure to the general environment. If these debris are buried in garbage or soil, the degradation effect is not obvious.

According to the news reported on July 20, starting from January 1 next year, non-degradable plastic bags will be prohibited from catering packaging, take-out or other activities. In addition, there are also reports that non-degradable plastic bags can no longer be used in shops, bookstores, supermarkets, pharmacies and other places directly under the central government, provincial capitals, and cities with separate planning status, but garbage bags, fresh-keeping bags and reels can still be used for the time being. In addition, from next year, disposable cotton swabs, disposable foamed plastic tableware can no longer be produced and sold, and disposable plastic straws are also banned, but straws such as some milk and beverages that come with their own packaging have not been banned.

In fact, the ban on these non-degradable plastic bags also has some benefits, because to make these bags, there is a very important ingredient in it is vinyl chloride. These vinyl chloride is harmful to our human body, when our fingers come into contact with it, it will be swollen ** will gradually harden, and in severe cases, there may be symptoms of splenomegaly and liver damage, which greatly affects our health.

When the temperature of the non-degradable plastic bag exceeds 65 degrees, the contents will release some substances that are harmful to our human body, causing damage to our liver, kidneys, and even the nervous system. If the non-degradable plastic bag is put on the ground, it is not easy to dissolve, which will have a bad impact on our land. If people do not dispose of non-degradable plastic bags properly and throw them away, they will directly lead to the death of animals if they enter the body of animals.

So after these non-degradable plastic bags are banned, what can we replace them with? In fact, modern people are very much advocating the word environmental protection, and many people will bring their own shopping bags when they go shopping. A lot of eco-friendly shopping bags, kraft paper shopping bags, and biodegradable plastic bags are very good choices.

In addition, degradable plastic straws are now being actively produced, and we will soon be able to use them, which can be a good replacement for non-degradable plastic straws, so that we have no worries when drinking drinks.

Among the plastic bags that will be banned from next year, fresh-keeping bags and garbage bags will not be affected for the time being. Because the composition of the fresh-keeping bag is polyethylene, although its degradation rate is extremely slow, it can decompose at high temperatures; Although garbage bags are difficult to decompose, they are completely inseparable from our lives, so their use is not restricted for the time being.

From next year, non-degradable plastic shopping bags will be banned, and environmentally friendly bags and knitted bags will not be affected for the time being, and they can be used normally, as long as they are not non-degradable!

Bags are not affected because they are degradable and have no harm to the environment.

Some particularly thin plastics such as plastic wrap will not be affected, after all, that kind of plastic bag is degradable, and non-degradable plastic bags are really too impactful, and environmental pollution is also very serious.

The chemical components contained in the plastic bags used before are not easy to be decomposed, but because of the low price, businesses everywhere will choose this kind of plastic bags.

The main component of plastic bags is polyethylene, polyethylene is difficult to be decomposed, although plastic products are easy to use and cheap, we still have to pay attention to environmental protection, try to use degradable products.

Because the main component of plastic bags is polyethylene, and polyethylene is difficult to decompose, we cannot use plastic bags, and we should pay attention to environmental protection.