| Nanjing Sumino Precision Machinery Co.,Ltd | WhatsApp +8617712413069 Inquire Product information |
- |
- |
- |
What is a degradable plastic bag?
It is a plastic bag made of biodegradable plastic:
1. Degradable plastics:
Degradable plastics are those that are added with a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.) during the production process to reduce their stability and are easier to degrade in the natural environment. plastic.
2. Classification:
Degradable plastics are generally divided into four categories:
1. Light-degradable plastics
The photosensitizer is mixed into the plastic, and the plastic is gradually decomposed under sunlight. It belongs to an earlier generation of degradable plastics. Its disadvantage is that the degradation time is difficult to predict due to sunlight and climate changes, so the degradation time cannot be controlled.
2. Biodegradable plastics
Under the action of microorganisms, plastics that can be completely decomposed into low-molecular-weight compounds. It is characterized by convenient storage and transportation, as long as it is kept dry, does not need to be protected from light, and has a wide range of applications. It can not only be used for agricultural mulch film and packaging bags, but also widely used in the field of medicine. With the development of modern biotechnology, more and more attention has been paid to biodegradable plastics, and they have become a new generation of research and development hotspots.
3. Light/biodegradable plastic
A type of plastic that combines photodegradation and microorganisms. It has the characteristics of both photodegradation and microorganism degradation.
4. Water-degradable plastics
Water-absorbent substances are added to plastics, which can be dissolved in the water after use. They are mainly used for medical and sanitary appliances (such as medical gloves) for easy destruction and disinfection.
3. Introduction:
Tests have shown that most degradable plastics begin to become thinner, lose weight, and lose strength after being exposed to the general environment for 3 months, and gradually break into pieces. If these fragments are buried in garbage or soil, the degradation effect is not obvious.
Extended information
What problems will "degradable plastics" bring
Putting aside the problem of the material itself, there is currently no widespread industrialized composting industry in China, and the garbage sorting and recycling system is not working well.
Promoting the use of "degradable plastics" may bring new "white pollution". The publicity of "degradable plastics" can easily lead the public to think that it is a material that "can disappear without processing" and cause misleading.
Back to the most fundamental problem, the plastic pollution that China and the world are currently facing is the price of excessive consumption and irresponsible consumption. Even if "degradable plastics" can be recycled into industrial compost to solve the problem of degradation, the consumption of "degradable plastics" is ultimately the consumption of environmental resources. From this perspective, what we need to consider is how to reduce the source of excessive consumption.
But we cannot deny that in the future, degradable plastics may be a development trend. Deng Xiaogang, director of the Hainan Provincial Department of Ecology and Environment, said,
"Currently, there is no national standard for fully biodegradable products, and there are no relevant standards in other provinces. Therefore, Hainan must innovate and be the first truly fully biodegradable local standard." This still has its meaning.
It is a plastic bag made of biodegradable plastic:
1. Degradable plastics:
Degradable plastics are those that are added with a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.) during the production process to reduce their stability and are easier to degrade in the natural environment. plastic.
2. Classification:
Degradable plastics are generally divided into four categories:
1. Light-degradable plastics
The photosensitizer is mixed into the plastic, and the plastic is gradually decomposed under sunlight. It belongs to an earlier generation of degradable plastics. Its disadvantage is that the degradation time is difficult to predict due to sunlight and climate changes, so the degradation time cannot be controlled.
2. Biodegradable plastics
Under the action of microorganisms, plastics that can be completely decomposed into low-molecular-weight compounds. It is characterized by convenient storage and transportation, as long as it is kept dry, does not need to be protected from light, and has a wide range of applications. It can not only be used for agricultural mulch film and packaging bags, but also widely used in the field of medicine. With the development of modern biotechnology, more and more attention has been paid to biodegradable plastics, and they have become a new generation of research and development hotspots.
3. Light/biodegradable plastic
A type of plastic that combines photodegradation and microorganisms. It has the characteristics of both photodegradation and microorganism degradation.
4. Water-degradable plastics
Water-absorbent substances are added to plastics, which can be dissolved in the water after use. They are mainly used for medical and sanitary appliances (such as medical gloves) for easy destruction and disinfection.
3. Introduction:
Tests have shown that most degradable plastics begin to become thinner, lose weight, and lose strength after being exposed to the general environment for 3 months, and gradually break into pieces. If these fragments are buried in garbage or soil, the degradation effect is not obvious.
Extended information
What problems will "degradable plastics" bring
Putting aside the problem of the material itself, there is currently no widespread industrialized composting industry in China, and the garbage sorting and recycling system is not working well.
Promoting the use of "degradable plastics" may bring new "white pollution". The publicity of "degradable plastics" can easily lead the public to think that it is a material that "can disappear without processing" and cause misleading.
Back to the most fundamental problem, the plastic pollution that China and the world are currently facing is the price of excessive consumption and irresponsible consumption. Even if "degradable plastics" can be recycled into industrial compost to solve the problem of degradation, the consumption of "degradable plastics" is ultimately the consumption of environmental resources. From this perspective, what we need to consider is how to reduce the source of excessive consumption.
But we cannot deny that in the future, degradable plastics may be a development trend. Deng Xiaogang, director of the Hainan Provincial Department of Ecology and Environment, said,
"Currently, there is no national standard for fully biodegradable products, and there are no relevant standards in other provinces. Therefore, Hainan must innovate and be the first truly fully biodegradable local standard." This still has its meaning.
Next, I hope that Hainan¡¯s move can force the development and improvement of biodegradable plastic technology, and break the constraints of technology, standards, production, and processing procedures for the promotion of biodegradable plastics in the future, so that it can manage the "white" "Pollution" has become a truly practical and perfect solution.
Sumino 100% biodegradable PLA/PBAT starch compounding granules machine
Processing material PLA/PBAT/PVA+Corn starch/Cassava starch+some small additives
Final product 100% biodegradable granule Application Films, bags, plates, cups, straws, chopsticks,etc
Capacity 10~1000KG/H (We can provide any capacity model as per cutomers' need)
Certification CE&ISO
