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What is the material of environmental protection plastic bag?

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environmental protection garbage bags are really echoed by others. There is no unified standard and there is no “requirement” for production
different people have different requirements and standards for environmental protection garbage bags:
some people think that as long as good raw materials are used to produce garbage bags, they are environmentally friendly
some people think that adding environmentally friendly materials to garbage bags is environmentally friendly
others think that garbage bags are environmentally friendly as long as they see relevant test reports
they even go too far. They confuse concepts and are deceptive
today, we’ll discuss what kind of garbage bags are really environmentally friendly
the raw material of ordinary garbage bags is PE. Even if the raw material is good, it is non degradable. According to the traditional way of burial or incineration, it will cause pollution, so it is not really “environmental protection”
there are also some garbage bags with degradable “starch machine” added to the raw materials, but they can only be degraded “locally”, dispersing the garbage bags into “flakes”, while the broken garbage bags still can not be degraded, so it is not really “environmental protection”
only fully degradable garbage bags are really environmentally friendly garbage bags. They degrade into water and carbon dioxide and do not pollute the air and soil. Since photodegradation and water degradation can only be degraded in a specific environment, generally “biodegradation” is relatively common in the market
at present, the cost of degradable garbage bags is 3-5 times that of ordinary garbage bags, and the use cost is much higher than that of ordinary garbage bags. Few users actively choose degradable garbage bags
the market share of degradable garbage bags is still very small and the circulation is not much. We should be more careful when choosing to buy them

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generally speaking, there is no completely environmentally friendly plastic bag. Only some plastic bags can be easily degraded after adding some components. That is, degradable plastic (what is degradable plastic bag?). In the production process of plastic packaging products, a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizer, biodegradable agent, etc.) are added to reduce the stability of plastic packaging and make it easier to degrade in the natural environment

environmental protection plastic bags

the “plastic restriction order” implemented since June 1, 2008 clearly stipulates that shopping malls, supermarkets and market fairs shall not provide free plastic shopping bags, and the use of plastic shopping bags with a thickness of less than 0.025mm is prohibited. After the implementation of the “plastic restriction order”, remarkable results have been achieved

I. all plastic bags that meet the national standard GB /T21661-2008 are called environmental protection plastic bags. Environmental protection plastic bags include recycled plastic bags and new plastic bags. The plastic bag added with degradable masterbatch in the process of producing plastic bag is called degradable plastic bag. After 90 days, the degradable plastic bag can be decomposed automatically under certain conditions. Bags made of plastic film are collectively referred to as plastic bags. Our commonly used plastic bags include convenience bags, supermarket bags, handbags, flat bags, plastic bags, vest belts and industrial packaging bags

II. A plastic bag that can melt quickly in case of humidity after sunlight. According to the inspection of the national environmental protection product quality supervision and inspection center, all the indicators of the product meet or exceed the national quality standards. It has the characteristics of sanitation, non-toxic and pollution-free. It is one of the most advanced environmental protection products in China. The degradable plastic bag is produced by using non-toxic polyolefin resin and adding degradant and other raw materials. Its appearance brings hope for reducing or eliminating white pollution

III. plastic bags that can be recycled after secondary recycling after use

ingredients of environmentally friendly plastic bags
generally speaking, there are no completely environmentally friendly plastic bags. Only some plastic bags are easy to degrade after adding some ingredients. That is, degradable plastics. In the production process of plastic packaging products, a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizer, biodegradable agent, etc.) are added to reduce the stability of plastic packaging and make it easier to degrade in the natural environment. At present, there are 19 units developing or producing degradable plastics in Beijing. The test shows that most degradable plastics begin to thin, lose weight, reduce strength and gradually crack into fragments after being exposed to the general environment for 3 months. If these fragments are buried in garbage or soil, the degradation effect is not obvious. The use of degradable plastics has four shortcomings: first, it consumes more food; Second, the use of degradable plastic products can not completely eliminate “visual pollution”; Third, due to technical reasons, the use of degradable plastic products can not completely solve the “potential harm” to the environment; Fourth, degradable plastics are difficult to recycle because they contain special additives

in fact, the most environmentally friendly thing is not to use plastic bags or have fixed plastic bags to reduce consumption. At the same time, it can be recycled by the government to reduce environmental pollution.

do not use
Plastic
bags
meals
phthalate derivatives, many of which are esters and are not soluble
in water
, but can be dissolved in heated or
fat
food
. If you use
plastic bags
as food
packaging materials
, be careful when using them. Esters may dissolve in food. So try not to use them to hold food such as meals, and don’t use plastic bags to hold hot food
white pollution
white pollution is one-time refractory
plastic packaging
, such as disposable
foam
fast food tableware as well as our commonly used plastic bags. It pollutes the
environment seriously. It is difficult to decompose when buried in
soil
, which will lead to the decline of soil capacity. If burned, it will lead to air pollution. Therefore, it is now advocated not to use it or use it less. It is best to bring your own tools when buying things to reduce its utilization
I. current situation and harm of “white pollution”
plastic products, as a new material
, have the advantages of light weight, waterproof, durable, mature production technology and low cost. They are widely used all over the world and show an increasing trend year by year. The growth rate of plastic packaging materials in the world market is higher than that of other packaging materials. The average annual growth rate of plastic packaging materials from 1990 to 1995 was 8.9%
the main harm of “white pollution” lies in “visual pollution” and “potential harm”:
1, “visual pollution”. The scattered
waste plastic
packaging materials in cities, tourist areas,
water bodies
and beside roads bring adverse stimulation to people’s vision, affect the
overall
beauty of cities and scenic spots, destroy
city appearance
,
landscape
, and thus cause “visual pollution”.
2, “potential harm”. After entering the
environment
, waste plastic packaging is difficult to degrade, resulting in long-term and deep-seated
ecological and environmental problems
. Firstly, the mixing of waste plastic packaging materials in the soil will affect
crops
absorption of nutrients and
water
, which will lead to crop yield reduction; Second, waste plastic packaging discarded on land or in water is swallowed by
animals
as food, resulting in animal death (such situations are common in zoos, pastoral areas and
oceans
)
Third, the waste plastic packaging mixed with
domestic waste
is difficult to deal with: landfill treatment will occupy land for a long time, the domestic waste mixed with plastic is not suitable for
composting
treatment, and the sorted
waste plastic
is difficult to be recycled
because it cannot guarantee
Quality
.

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