Now that the country advocates environmental protection, takeaway merchants are gradually replacing ordinary disposable lunch boxes with degradable tableware to reduce takeaway pollution. So what is a degradable lunch box? What are the main components of the degradable disposable lunch box? Degradable disposable lunch boxes refer to tableware that can eventually be degraded into carbon dioxide and water. Degradable lunch boxes are made of natural materials; the other is plastic as the main ingredient, with starch, photosensitizers and other substances added. Next, we will explain the relevant content of degradable lunch boxes in detail.
1. What is a degradable lunch box?
Degradable lunch box refers to a lunch box that can change its biochemistry under the action of biological (bacteria, mold, algae) enzymes in the natural environment, resulting in moldy appearance, changes in internal quality, and finally carbon dioxide and water. The whole degradation process can be converted into harmless substances without manual participation, which is a long process. The finished waste of degradable lunch boxes should meet the degradation characteristics of GB18006.3-2020 “General Technical Requirements for Disposable Degradable Tableware”, and should also have recycling value, be easy to regenerate, or be convenient for sanitary landfill and high-temperature composting.
2. What are the main components of the degradable disposable lunch box?
There are two application materials for degradable lunch boxes: one is natural materials, such as paper products, straw, starch, etc., which are degradable, also known as environmentally friendly products; the other is plastic as the main component, adding starch, photosensitizers, etc. material made.
1. Degradable natural material lunch box
Disposable degradable lunch boxes made of natural materials are also called biodegradable lunch boxes. Biodegradable lunch box is an advanced environmental protection product. Using starch as the main raw material, adding annual plant fiber powder and special additives, and making biodegradable fast food boxes through chemical and physical solutions. Because starch is a biodegradable natural polymer, it is decomposed into glucose under the action of microorganisms, and finally decomposed into water and carbon dioxide. In addition, the blended material is also a fully degradable material, which can be said to have no impact on the environment. The main source of raw starch can be corn, potatoes, sweet potatoes, cassava and other annual growing plants. Naturally, biodegradable lunch boxes are not perfect. For example, most of the raw materials for production are food crops, and problems such as mildew resistance have yet to be resolved.
2. Degradable plastic lunch box
The raw material of this disposable lunch box is degradable plastic. The so-called degradable plastic is to add a certain amount of additives in the production of plastics, such as photosensitizers, starch and other raw materials. In this way, after the degradable plastic products are used, they can be transformed from intact shapes to fragments after being discarded and exposed to nature for three months, thus at least visually improving the environment. But the main flaw of this technology is that these fragments can’t continue to degrade, but just change from large pieces to small pieces of plastic, which are not fundamentally up to the task of eliminating white pollution.
Post time: Aug-05-2022