Degradable tableware refers to tableware that can undergo biochemical reactions under the action of microorganisms (bacteria, molds, algae) in the natural environment, causing moldy appearance to internal quality changes, and eventually forming carbon dioxide and water, thereby achieving the effect of not polluting the environment. After the biodegradable tableware is thrown away, it is a product that does not cause white pollution to the environment when decomposed in the soil. For example, disposable biodegradable cups and saucers, knives and forks, and Biodegradable Paper Round Bowl made with plant starch as raw materials are more environmentally friendly and safer to use than disposable plastic tableware.
Biodegradable Paper Round Bowl
Biodegradable plastic is a kind of high-molecular material with excellent performance, which can be completely decomposed by environmental microorganisms after being discarded, and finally inorganicized to become a component of the carbon cycle in nature. As we all know, "paper" is a typical biodegradable material, and "synthetic plastic" is a typical polymer material. Well, biodegradable plastics are polymer materials that have the properties of both paper and synthetic plastics.
There are four main ways of polymer degradation: microbial degradation, large-scale biodegradation, photodegradation, and chemical degradation. The definition of photodegradable and biodegradable plastics refers to a class of plastics that undergo photooxidative degradation through natural sunlight and can continue to be degraded by microorganisms after photodegradation reaches the decay period, which is called photo-biodegradable plastics. Photo-biodegradable plastics are mostly polyolefin plastics, supplemented with appropriate amounts of photosensitizers, biodegradants, promoting oxidants and degradation control agents (including stable, promoting control agents and biodegradation sensitizers). This type of degradation plastic can be divided into two categories: one is starch-added photo-biodegradable plastics, and the other is the use of metal chelate compounds as photosensitizers, and their photodegradation products can eventually biodegrade. Photo-biodegradable plastic is actually an improved type of photodegradable plastic, and its application field is generally the same as that of photodegradable plastic.
Photodegradable plastics can only degrade under the influence of sunlight. Plastics that can be degraded into small molecule compounds and enter the ecological cycle are only a very small part. Most plastics only gradually disintegrate into fragments or powders, which may not be visible to the naked eye, but their long-term absorption by microorganisms in the soil is unknown. When plastic waste is partially buried in the soil or buried in the ground as garbage, it will not be degraded due to lack of light, oxygen, or water. It can only change pollution from visible to invisible, and it will bring more damage to the ecological environment. Great potential harm. Therefore, the development of biodegradable plastics will have positive significance for the entire biosphere.
However, although there are many studies and reports on the degradation of plastics, many specific problems cannot be solved, and the promotion is extremely difficult, and the outlook is not optimistic. The reasons are: one is that the degradable plastic bag has a low load-bearing capacity and cannot meet the requirements of customers to load more and be used repeatedly; the other is that the degradable plastic bag has a dull yellow color and low transparency, which gives people a feeling of lack of cleanliness and ugliness. , Don't worry about it; third, the price is on the high side, because the merchant is giving away for free, so the cost is difficult to accept.
Another example is to solve the environmental pollution problem of EPS fast food lunch boxes. Try to use paper lunch boxes or Biodegradable Sugarcane Fast Food Package instead. But because of the following reasons, it is extremely difficult to promote: first, the high strength, light weight and good thermal insulation of EPS; second, the price of paper lunch boxes is 1.5 to 2.5 times that of EPS. At this time, Disposable Round Bowl suppliers need to actively innovate, improve technology, and promote environmentally friendly tableware.