What material is degradable garbage bag?

Abstract: With the deepening of environmental protection concept and the enhancement of environmental pollution awareness of plastic garbage bags, a degradable garbage bag has appeared in the market now. Degradable means that it can be absorbed and decomposed by nature in the natural state. So what is the material of degradable garbage bags? What kind of garbage does degradable garbage bag belong to? Let's take a look at the knowledge of degradable garbage bags. 1. What does degradable garbage bag mean?

In fact, strictly speaking, plastic products are not completely environmentally friendly. It's just that garbage bag manufacturers add some ingredients in the production process, which are easy to degrade, which is what we often call degradable plastics. In the production process of garbage bag manufacturers, a certain amount of additives, such as starch, modified starch or other cellulose, photosensitizer, biodegradable agent, etc. It reduces the stability of plastic packaging and is easier to degrade in the natural environment.

Second, what material is the degradable garbage bag?

The basic characteristics of degradable garbage bags are "degradable and easy to degrade". From the different raw materials and decomposition factors, it can be roughly divided into the following four types:

1, photodegradable garbage bag: garbage bag made of PE as the main material and mixed with photodegradable agent and mineral powder such as calcium carbonate can be decomposed under the action of sunlight. Degradable plastics, which belong to the earlier generation, have the disadvantage that it is difficult to predict and control the degradation time due to the influence of sunshine and climate change.

2. Biodegradable garbage bags: garbage bags made of biodegradable agents such as PE and starch are mainly decomposed by microorganisms. Plastics that can be completely decomposed into low molecular compounds under the action of microorganisms. Its characteristics are convenient storage and transportation, no need to avoid light as long as it is kept dry, and its application range is wide. It can be used not only in agricultural plastic films and packaging bags, but also in the medical field.

3. Photodegradable garbage bag: a kind of plastic that combines photodegradation with microorganism, and has the characteristics of photodegradation and microbial degradation of plastic at the same time.

4. Water-degradable garbage bag: Water-absorbent substances are added to plastics, which can be dissolved after being discarded in water. Mainly used for medical and health instruments, easy to destroy and disinfect.

The degradable plastic garbage bags are marked with recycling signs or China environmental protection signs. Foreign countries generally add "EPI" environmental protection signs.

3. What kind of garbage does the degradable garbage bag belong to?

Degradable garbage bags are recyclable, but they should be thrown into dry garbage bins in daily life. In principle, degradable garbage bags can be recycled, but it is difficult for ordinary consumers to distinguish between degradable and non-degradable garbage bags, and most cities do not have a recycling system specially set up for this purpose, so they still have to throw them into dry garbage bins.