●In daily life, the amount of plastic bags is quite large, and the types of plastic bags are also various. Usually, we seldom pay attention to the material of plastic bags and the impact on the environment after they are discarded. With the gradual promotion of the "plastic ban", more and more consumers have begun to pay attention to degradable plastic bags. Many customers will switch to degradable plastic bags, however many customers do not know the difference between ordinary plastic bags, degradable plastic bags and biodegradable bags. Let me share with you.
Three kinds of plastic bags in Definition,Advantage and Disadvantage
Definition:
●Ordinary plastic bags are other plastic materials such as PE, and the main component is resin. Resin refers to a polymer compound that has not been mixed with various additives. Resin accounts for about 40 to 100 percent of the total weight of plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Biodegradable plastic bags have the national environmental protection standard GB/T21661-2008, while traditional plastic bags do not need to comply with this standard. Traditional plastic bags take 200 years or more to degrade after being thrown away. Cause "white pollution" to the environment.
●Degradable plastic bag: Literally, it is a degradable plastic bag, which means that it can be degraded, but it still contains plastic and other related ingredients, but it is only partially degraded, not fully degraded. It is mainly made of polyethylene plastic, added with photodegradant and calcium carbonate and other mineral powders, also known as photodegradable plastic bags. This kind of plastic bag is decomposed under the action of sunlight. However, the polyethylene after fen decontamination still exists in the natural environment. Although the existence of white pollution cannot be seen in the line of sight, the white pollution is still invading our surrounding environment in the form of small particles, which can be said to cure the symptoms but not the root cause. To put it simply, after discarding the degradable plastic bag, it will still pollute the environment to a certain extent, just like the traditional plastic bag. Its final destination is actually the same as that of traditional plastic bags. After being discarded, they all enter landfills or are incinerated, and cannot be degraded by special industrial composting. Therefore, "degradable" is just "degradable", not equal to "full biodegradation". In a sense, degradable plastic bags are not a feasible solution to "white pollution", nor a "panacea" to solve plastic bag pollution. In essence, it will still generate a lot of waste, and degradable plastic bags actually Not degraded.
●Biodegradable plastic bags: The material components of biodegradable plastic bags are composed of PLA (polyacid) and PBAT (polyadipic acid). Such materials also include PHAS, PBA, PBS, etc., which are recognized as environmentally friendly materials. Harmful green products. Biodegradable plastic bag material, also known as biodegradable plastic, refers to the action of microorganisms existing in nature under natural conditions such as soil or sandy soil, or under specific conditions such as composting conditions or anaerobic digestion conditions or aqueous culture solutions. Causes degradation, and finally completely degrades into carbon dioxide (CO2), methane (CH4), water (H2O) and the mineralized inorganic salts of the elements it contains, as well as new biomass plastics.
Advantages and Disadvantages :
Ordinary plastic bags
Advantages
Inexpensive
extremely lightweight
large capacity
Disadvantages
×The degradation cycle
is extremely long
×Difficult to handle
Degradable plastic bag
Advantages
Completely degraded,
producing carbon dioxide and water
Good tensile strength and ductility
Isolates odor, bacteriostatic
and anti-mildew properties
Biodegradable plastic bags
Biodegradable plastic bags are fully biocompostable and degradable bags. Under the condition of compost degradation, they can be completely biodegraded within 180 days. The degradation products are carbon dioxide and water, which directly enter the soil and are absorbed by plants, return to the soil, or enter the general environment. It can be degraded without causing pollution to the environment, so that it comes from nature and belongs to nature. Biodegradable plastic bags can be said to be a substitute for plastics, which can greatly reduce the problem of white pollution caused by the inability of traditional ordinary plastic bags to solve. It can fundamentally solve the problem of plastic pollution, rather than cure the symptoms. The use of biodegradable plastic bags greatly reduces the pollution of plastic products to the environment. It is environmentally friendly, healthy and hygienic, and can be used with confidence. Biodegradable plastic bags have better degradability than other materials, use longer than paper bags, and cost less than paper bags.
Follow & Contact us
You can see more different products in our store. More products detail please follow our store,we will update the information twice a week and welcome to contact us,we will reply you immediately. Thank you for your reading~
Post time: Mar-10-2022